JP2006061376A - System for medical apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system for medical apparatus which is free from a possibility of the detachment of a fixed part of a drape when the drape is pulled during the use and prevents non-sterilized articles from being exposed to a sterilized area. <P>SOLUTION: A stereoscope 2 in the sterilized area and a camera head 18 in the non-sterilized area are detachably connected through a sterilized adapter 27 to be sterilized, and an approximately frame-shaped drape fixing device 90 attached to the drape 71 covering the entire apparatus which includes the camera head 18 on the side of the non-sterilize area and is disposed in the non-sterilized area is made of a deformable, flexible material. A locking part 92 locking the outer peripheral surface of the drape fixing device 90 so as to be partially closed is provided on at least either the sterilized adapter 27 or the camera head 18 at the connecting part between the sterilized adapter 27 and the camera head 18. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a medical instrument system that includes an endoscope holding device that holds a stereoscopic scope for surgery and the like, and is used in a state in which the entire device disposed in a non-sterile region is covered with drape.

  In general, a stereoscopic scope or the like is used as an endoscopic device for surgery. This stereoscopic scope is detachably connected to the camera head via an adapter. An imaging optical system for capturing an observation image of the stereoscopic scope is disposed inside the camera head. Furthermore, the camera head is connected to a video processor incorporating a camera control unit (CCU) via a cable. A monitor is connected to the video processor. An observation image obtained by the stereoscopic scope is picked up by a camera head, converted into an electric signal, output to a video processor, processed by a signal, and displayed on a monitor screen.

  In some cases, a stereoscopic scope for surgery is used by being attached to an endoscope holding device. The endoscope holding device has, for example, a multi-stage arm type support arm mechanism. One end portion of the support arm mechanism is provided with a mount portion for an optical device. An observation unit in which a stereoscopic scope is connected to a camera head via an adapter is attached to this mount portion. Then, the stereoscopic scope is used for surgery while being held by the endoscope holding device.

  By the way, the stereoscopic scope for surgery needs to be sterilized before use. However, since the endoscope holding device is much larger than the stereoscopic scope, it is difficult to sterilize the entire endoscope holding device. For this reason, the entire endoscope holding apparatus is usually arranged in a non-sterile region.

Therefore, conventionally, only the scope body of the stereoscopic scope is sterilized, and the endoscope holding device side including the camera head is covered with a sterilized drape so as to be isolated from the sterilized region. (See Patent Document 1)
FIG. 9 shows an example of a fixed state of the conventional drape a. In FIG. 9, reference numeral b is a scope body of a sterilized stereoscopic scope, c is a camera head disposed in a non-sterile region, and d is a sterilization adapter. The sterilization adapter d has a scope connection hole e on one end side and a camera head connection hole f on the other end side. A positioning partition wall g projects inwardly between the scope connection hole e and the camera head connection hole f. When the scope main body b, the sterilization adapter d, and the camera head c are connected, the base end portion of the scope main body b inserted into the scope connection hole e is abutted against one end surface of the partition wall g. And the front-end | tip part of the camera head c inserted in the camera head connection hole f is each positioned in the state contact | abutted by the other end surface of this partition wall g. Thereby, the scope main body b, the sterilization adapter d, and the camera head c are fixed in a state where they are optically pressed against the abutting surface.

  Further, the drape a has an opening h that is fixed to the sterilization adapter d. The drape a has an opening h for attachment. The drape a is fixed to the sterilization adapter d in a state where the entire camera head c and endoscope holding device arranged in the non-sterile region are covered with the drape a. At the time of fixing the drape a, the peripheral part of the opening h of the drape a is wound around the outer peripheral surface of the sterilization adapter d, and then the fixing tape i such as an adhesive tape is wound from the outside, thereby opening the opening h of the drape a. Is fixed to the outer peripheral surface of the sterilization adapter d. In this state, the scope body b of the stereoscopic scope is operated by an operator in the sterilization area.

FIG. 10A shows another example of the fixed state of the conventional drape a. Here, an elastic body j such as a frame-like rubber or sponge is fixed to the peripheral portion of the opening h of the drape a. The elastic body j is sandwiched between the sterilization adapter d and the camera head c from two directions and fixed in a compressed state.
Japanese Patent No. 3328236

  As shown in FIG. 9, in the fixed state of the conventional drape a in which the drape a is wound and fixed around the outer peripheral surface of the sterilization adapter d by the fixing tape i, depending on how to fix the fixing tape i due to individual differences of operators such as an operator. There is a possibility that the certainty of fixing the drape a may vary. Therefore, when the drape a is not fixed stably, the drape a is unintentionally pulled when the support arm mechanism on the endoscope holding device side is moved, and the fixed part of the drape a is displaced, resulting in non-sterilization. There is a possibility that a part of the camera head c arranged in the region comes out to the sterilization region side.

  Further, as shown in FIG. 10A, when a drape fixing elastic body j such as rubber or sponge is sandwiched from two directions between the sterilization adapter d and the camera head c and fixed in a compressed state. The elastic body j for fixing the drape is only sandwiched and fixed by the sterilization adapter d and the camera head c from two directions. Therefore, when a tension is applied to the drape a, the drape fixing elastic body j is deformed into an extended state. Therefore, as shown in FIG. 10B, the drape fixing elastic body j is connected to the sterilization adapter d and the camera head c. And the non-sterile material such as the camera head c may be exposed to the sterilized area.

  The present invention has been made paying attention to the above circumstances, and its purpose is to prevent the fixed part of the drape from coming off even when the drape is pulled during use, and to prevent non-sterile items from being exposed to the sterilized area. It is to provide a medical device system capable of performing the above.

The invention of claim 1 includes a first optical device disposed in a sterilization region, a second optical device disposed in a non-sterilization region, and between the first optical device and the second optical device. A sterilization adapter that can be sterilized, and includes an optical path that optically connects between the optical system on the first optical device side and the optical system on the second optical device side, A drape that covers the entire device on the non-sterile region side that is disposed in the non-sterile region including the second optical device, is attached to the drape, and is fixed to a connection portion between the sterilization adapter and the second optical device. A frame-shaped drape fixture having an inner peripheral surface and an outer peripheral surface, wherein the drape fixture is formed of a deformable flexible material, and the sterilization adapter and the second optical instrument In the connecting portion, there are few sterilization adapters and the second optical instrument. And also a medical device system characterized by having a locking portion for locking in a state surrounding at least part of the outer peripheral surface of the drape fixture to either.
According to the first aspect of the present invention, the substantially draped drape fixture of the drape covering the entire device on the non-sterile region side disposed in the non-sterile region including the second optical device is replaced with the sterile adapter and the second optical device. When the drape fixture formed of a deformable flexible material is fixed to the connection portion with the device, the drape fixture is fixed at least on the outer peripheral surface of the drape fixture by the engaging portion of the connection portion between the sterilization adapter and the second optical device. It locks in a state of surrounding a part.

According to a second aspect of the present invention, the device on the non-sterile region side includes at least a pedestal portion, an optical device mount portion at one end portion, and a connecting portion connected to the pedestal portion at the other end portion, and the optical device mount Formed by an endoscope holding device having a multi-stage arm-type support arm mechanism that movably supports a part, wherein the first optical device is an endoscope, and the second optical device is the endoscope The medical instrument system according to claim 1, wherein each of the medical instrument systems is formed by a camera head having an imaging unit that captures an observation image of a mirror.
In the second aspect of the invention, the camera head of the second optical device is attached to the optical device mount portion of the endoscope holding device that is the device on the non-sterile region side, and the endoscope that is the first optical device. Is connected to the camera head via a sterilization adapter.

  ADVANTAGE OF THE INVENTION According to this invention, even if a drape is pulled at the time of use, there is no possibility that the fixed part of a drape will come off, and it can prevent that a non-sterile thing is exposed to a sterilization area | region.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows an overall schematic configuration of a medical instrument system 1 according to the present embodiment. The medical instrument system 1 includes a stereoscopic scope (first optical device) 2 used as an endoscope apparatus for surgery, and an endoscope holding apparatus 3 that holds the stereoscopic scope 2. The stereoscopic scope 2 is detachably connected to a camera head (second optical device) 18 described later having an imaging unit that captures an observation image of the stereoscopic scope 2 via a sterilizable sterilization adapter 27 described later. Used in the state. The optical equipment connection unit OU of the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18 is held by the endoscope holding device 3 so as to be freely movable.

  In the medical instrument system 1 of the present embodiment, the stereoscopic scope 2 and the sterilization adapter 27 are used in a state of being sterilized in advance before use. On the other hand, the endoscope holding device 3 including the camera head 18 is disposed in the non-sterile region. The entire device on the endoscope holding device 3 side including the camera head 18 arranged in the non-sterile region is used in a state of being isolated from the sterilized region by covering the sterilized drape 71 which is a transparent sheet. .

  The endoscope holding device 3 includes a pedestal portion 4 with casters and a multi-armed support arm mechanism 5. A support 6 is erected on the pedestal 4. A multi-stage arm type support arm mechanism 5 is connected to the upper end portion of the column 6. In the support arm mechanism 5, a plurality of moving arms 7 constituting a multistage arm are connected to each other via a joint portion 8 so as to be rotatable. Further, the support arm mechanism 5 incorporates a weight for balance adjustment (not shown).

  Each joint portion 8 includes, for example, an electromagnetic clutch. Each electromagnetic clutch is connected to a controller. For example, a foot switch is connected to this controller. And each electromagnetic clutch is on-off controlled by operation of a foot switch. At this time, for example, when each electromagnetic clutch is turned on, each joint is switched to a movable state, and when each electromagnetic clutch is turned off, each joint is switched to a fixed state. It has become.

  In addition, as shown in FIG. 2, an optical device mount 12 is disposed at the tip of the moving arm 7 at the most advanced position. An optical device holding unit 15 is connected to the optical device mounting unit 12 via a position adjusting mechanism 14 on a base 13. The position adjusting mechanism 14 includes, for example, a ball joint type movable part that supports the optical device holding part 15 in a bellows-like cover 16 so as to be movable in an arbitrary direction, and a lock mechanism part that locks the movable part in an immobile state. And have. For example, an air clutch type clutch mechanism is incorporated in the lock mechanism portion.

  Further, an engagement groove 17 is formed on the upper surface of the optical device holding unit 15. The engaging groove 17 is engaged with an engaging convex portion 19 projecting from a camera head 18 attached to the optical device holding portion 15 in a removably inserted state.

  Further, as shown in FIG. 7, a fixing screw 20 is attached to the side surface of the optical device holding portion 15. When the fixing screw 20 is tightened in a state where the engaging convex portion 19 of the camera head 18 is engaged with the engaging groove 17 of the optical device holding portion 15, the engaging convex portion 19 and the engaging groove 17 are operated. The engaging part is fixed.

  In addition, one end of an operation lever 21 for moving operation is fixed to the optical device holding unit 15. The other end of the operation lever 21 extends on the opposite side to the direction of the center of gravity of the device held by the optical device holding unit 15. Further, a grip portion 22 that is gripped by the operator is disposed at the other end of the operation lever 21. The gripping part 22 has a changeover switch 23 for switching the lock mechanism part of the position adjusting mechanism 14 between a locked state and an unlocked state.

  The changeover switch 23 has two operation buttons (operation members) 24 and 25 for changeover operation. These operation buttons 24 and 25 are arranged at different positions of the grip portion 22, for example, both upper and lower surfaces. When the change-over switch 23 is operated, the change-over switch 23 can be operated by pressing the two operation buttons 24 and 25 simultaneously. Note that when only one of the two operation buttons 24 and 25 is pushed in, the changeover switch 23 is held in an inoperative state. Thereby, the certainty of operation of the changeover switch 23 is improved. Note that one end of a cable 26 is connected to the grip portion 22. This cable 26 incorporates a lead wire having one end connected to the changeover switch 23. The other end of the cable 26 is extended to the main body side of the endoscope holding device 3.

  The stereoscopic scope 2 is detachably connected to the camera head 18 via a sterilization adapter 27 that can be sterilized. The stereoscopic scope 2 includes an elongated insertion portion 28 that is inserted into the body, and a wide portion 29 that is wide and connected to the proximal end portion of the insertion portion 28. The stereoscopic scope 2 has an observation objective optical system (not shown) and an illumination optical system for illumination at the distal end of the insertion portion 28.

  FIG. 3 shows the vicinity of the wide portion 29 of the stereoscopic scope 2. In the vicinity of the wide portion 29, there are a stereoscopic observation eyepiece (stereoscopic image forming portion) 30 for forming a stereoscopic image, and a light guide base 31. A light guide cable 31A connected to a light source device (not shown) is detachably connected to the light guide base 31.

  Further, the insertion portion 28 of the stereoscopic scope 2 includes an inner pipe 32 and an outer pipe 33 as shown in FIG. A lens pipe 35 that holds a relay lens 34 that transmits an observation image sent from an observation objective optical system is disposed inside the inner pipe 32. A light guide fiber (not shown) that transmits illumination light is disposed between the inner pipe 32 and the outer pipe 33. The illumination light transmitted from the light guide fiber is emitted to the outside through the illumination optical system for illumination at the distal end portion of the insertion portion 28.

  FIG. 4 shows the internal configuration of the eyepiece 30 for stereoscopic observation. The stereoscopic observation eyepiece 30 includes a dividing prism 36 that divides an observation image sent from the observation objective optical system at the distal end of the insertion portion 28 via the relay lens 34, and the dividing prism 36. Two observation optical systems 37 and 38 that respectively form two divided observation images are provided.

  Moreover, the housing part 39 of the eyepiece 30 for stereoscopic observation is divided into three along the axial direction of the insertion part 28 as shown in FIG. The first housing member 40 on the front end side connected to the proximal end portion of the insertion portion 28, the second housing member 41 that houses the split prism 36, and the rear end side that houses the two observation optical systems 37 and 38 The third housing member 42 is provided.

  A base end portion of the outer pipe 33 is fixed to the front end portion of the first housing member 40. Further, a concave connection groove 43 is formed on the outer surface of the rear end portion of the first housing member 40. A front end connecting portion 44 of the front end portion of the second housing member 41 is detachably engaged with the connecting groove 43.

  Further, a first base 45 is disposed on the inner surface of the rear end portion of the first housing member 40. The front end portion of the first base 45 is fixed to the outer peripheral surface of the rear end portion of the inner pipe 32. Further, the rear end portion of the lens pipe 35 extends rearward from the rear end portion of the inner pipe 32. A front end portion of the second base 46 is fixed to the rear end portion of the lens pipe 35. A split prism 36 is fixed to the rear end portion of the second base 46.

  Further, a first screw hole 47 is formed in the rear end portion of the first base 45 in a direction orthogonal to the axial direction of the insertion portion 28. A first adjustment screw 48 is screwed into the first screw hole 47. The first adjustment screw 48 is in contact with the second base 46. The first adjusting screw 48 finely adjusts the axial mounting positions of the lens pipe 35, the second base 46, and the split prism 36, and then is fixed.

  A tool insertion hole 49 and a second screw hole 50 are formed in the connection groove 43 of the first housing member 40. The tool insertion hole 49 is disposed at a position corresponding to the first screw hole 47 of the first base 45. Further, a second adjustment screw 51 is screwed into the second screw hole 50. The second adjustment screw 51 is in contact with the first base 45. The second adjustment screw 51 is used to fix the axial position of the inner pipe 32 after fine adjustment.

  An imaging lens fixing member 52 is disposed inside the third housing member 42. The imaging lens fixing member 52 is fixed to the second housing member 41 by a column member (not shown). In the imaging lens fixing member 52, two lens unit mounting holes 53 and 54 for accommodating the two observation optical systems 37 and 38 for stereoscopic observation are formed. The lens unit mounting holes 53 and 54 are respectively provided with a first lens holder 55 having a large diameter on the front end side and a second lens holder 56 having a small diameter on the rear end side.

  Further, cover glasses 57 and 58 are fixed to the rear end portion of the third housing member 42 at positions corresponding to the two observation optical systems 37 and 38, respectively.

  In addition, an engagement convex portion 60 that is detachably engaged with the second housing member 41 is formed at the front end portion of the third housing member 42. A recessed engagement recess 61 is formed at a position corresponding to the engagement protrusion 60 at the rear end of the second housing member 41. And the engagement convex part 60 of the 3rd housing member 42 is engaged with the engagement recessed part 61 of the 2nd housing member 41 so that engagement / disengagement is possible. Further, a seal packing 62 is attached to the engagement portion between the engagement recess 61 of the second housing member 41 and the engagement protrusion 60 of the third housing member 42.

  Further, the second housing member 41 has a tapered notch surface 63 that gradually decreases in width as it goes toward the connecting portion with the insertion portion 28 along the shape of the split prism 36 around the split prism 36. Is formed.

  Further, the front end connecting portion 44 of the second housing member 41 is formed with a working screw hole 64 at a portion corresponding to the tool insertion hole 49. A male threaded cap member 65 is screwed into the working screw hole 64. Then, when the housing portion 39 is assembled, the cap member 65 is removed, thereby allowing the tool to access the first adjusting screw 48 through the screw hole 64 of the second housing member 41 and the tool insertion hole 49 of the first housing member 40, and 1 The adjustment screw 48 can be adjusted. A sealing O-ring 66 is attached to a contact portion between the cap member 65 and the second housing member 41.

  FIG. 6 shows a connecting portion of the optical device connecting unit OU of the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18. Here, the camera head 18 has a concave fitting recess 72 to which other devices are connected.

  Furthermore, the sterilization adapter 27 includes an adapter main body 73 and an adapter side insertion portion 74 that protrudes from one end of the adapter main body 73. The adapter-side insertion portion 74 is formed to be approximately the same size as the fitting recess 72 of the camera head 18 and is removably inserted into the fitting recess 72 of the camera head 18. A positioning abutment surface 75 that abuts against the inner bottom portion of the fitting recess 72 of the camera head 18 is formed at the distal end of the adapter side insertion portion 74.

  As shown in FIG. 5, locking protrusions 76 are formed on the outer surface of the adapter side insertion portion 74 at, for example, two upper and lower portions. Furthermore, a guide groove 77 into which the protrusion 76 is inserted when the adapter side insertion portion 74 is inserted is formed in the fitting recess 72 of the camera head 18. A hook-shaped locking member 78 is provided at the end of the guide groove 77.

  Further, an operation lever 79 of the locking member 78 is attached to the peripheral wall portion of the fitting recess 72 of the camera head 18. The operation lever 79 is pivotally supported about a support shaft 80. A locking member 78 is connected to the tip of the support shaft 80. The protrusion 76 is inserted into the guide groove 77 when the adapter side insertion portion 74 of the sterilization adapter 27 is inserted into the fitting recess 72 of the camera head 18. At this time, the adapter side insertion portion 74 of the sterilization adapter 27 is inserted to the innermost position of the fitting recess 72 of the camera head 18, and the abutment surface 75 of the adapter side insertion portion 74 abuts against the inner bottom portion of the fitting recess 72. At this point, the protrusion 76 is moved to the end portion of the guide groove 77. In this state, by rotating the operation lever 79, the locking member 78 is locked to the protrusion 76, and the adapter side insertion portion 74 of the sterilization adapter 27 is placed on the inner bottom of the fitting recess 72 of the camera head 18. The abutting surface 75 is pressed and fixed.

  Further, the adapter body 73 of the sterilization adapter 27 is formed with an insertion hole 81 into which the rear end of the wide portion 29 of the stereoscopic scope 2 is inserted at the end opposite to the adapter side insertion portion 74. . The insertion hole 81 extends inside the adapter side insertion portion 74. The innermost part of the insertion hole 81 extends to a position near the abutment surface 75 of the adapter side insertion part 74. When the rear end part of the wide scope 29 of the stereoscopic scope 2 is inserted into the innermost part of the insertion hole 81, the positioning projection is abutted against the rear end part of the wide scope 29 of the stereoscopic scope 2. A contact surface 82 is formed.

  Further, as shown in FIG. 3, locking projections 83 are formed on the outer surface of the wide portion 29 of the stereoscopic scope 2 at, for example, two upper and lower portions. The insertion hole 81 of the adapter main body 73 of the sterilization adapter 27 is formed with a guide groove 84 into which the protrusion 83 is inserted when the wide portion 29 of the stereoscopic scope 2 is inserted. A hook-shaped locking member 85 is provided at the end of the guide groove 84.

  Further, an operation lever 86 of the locking member 85 is attached to the peripheral wall portion of the insertion hole 81 of the adapter main body 73 of the sterilization adapter 27. The operating lever 86 is pivotally supported around a support shaft 87. A locking member 85 is connected to the tip of the support shaft 87. When the wide portion 29 of the stereoscopic scope 2 is inserted into the insertion hole 81 of the adapter main body 73 of the sterilization adapter 27, the protrusion 83 is inserted into the guide groove 84. At this time, the wide part 29 of the stereoscopic scope 2 is inserted to the deepest position of the insertion hole 81 of the sterilization adapter 27, and the wide part 29 of the stereoscopic scope 2 is placed on the abutting surface 82 of the deepest part of the insertion hole 81. At the time when the rear end portion is abutted, the projection 83 is moved to the end portion of the guide groove 84. In this state, by rotating the operation lever 86, the locking member 85 is locked to the protrusion 83, and the rear portion of the wide scope 29 of the stereoscopic scope 2 is placed on the inner bottom of the insertion hole 81 of the sterilization adapter 27. The abutting surface of the end is pressed and fixed.

  In the present embodiment, when the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18 are connected (when the optical device connection unit OU is formed), as shown in FIG. An overlapping portion 88 having a triple structure is formed in the fitting recess 72 so that the stereoscopic scope 2 and the sterilization adapter 27 are inserted together in an overlapping state. At this time, the abutment surface 75 of the adapter side insertion portion 74 of the sterilization adapter 27 is abutted against the inner bottom portion of the fitting recess 72 of the camera head 18, and the wide portion 29 of the stereoscopic scope 2 is the outermost portion of the insertion hole 81. By positioning each in a state of being abutted against the abutting surface 82 at the back, the stereoscopic scope 2 and the camera head 18 are optically pressed on the abutting surface via the sterilization adapter 27, respectively. Fixed. The sterilization adapter 27 is optically connected between the optical system on the stereoscopic scope 2 side and the optical system of the camera head 18 in a state where the stereoscopic scope 2 and the camera head 18 are detachably connected. An optical path is formed.

  Further, the drape 71 is formed with an opening 89 that is used when the drape 71 is fixed to the connecting portion between the sterilization adapter 27 and the camera head 18. The opening 89 is set to a size that allows the adapter side insertion portion 74 of the sterilization adapter 27 to be inserted.

  Further, a frame-shaped drape fixture 90 having an inner peripheral surface and an outer peripheral surface is attached to the peripheral portion of the opening 89 of the drape 71 by being adhered thereto. The drape fixture 90 is made of a deformable flexible material, for example, an elastic body such as sponge, rubber, or foam. When the medical instrument system 1 of the present embodiment is used, the entire device arranged in the non-sterile region such as the endoscope holding device 3 including the camera head 18 on the non-sterile region side is covered with the drape 71. A drape fixture 90 is fixed to the connecting portion between the sterilization adapter 27 and the camera head 18.

  In addition, as shown in FIG. 6, at the connection portion between the sterilization adapter 27 and the camera head 18, at least one of the sterilization adapter 27 and the camera head 18, in this embodiment, the entrance of the fitting recess 72 of the camera head 18. A recessed locking groove 91 is formed in the part. The drape fixture 90 is fixed to the locking groove 91 in the inserted state. As a result, a locking portion 92 is formed on the peripheral wall portion of the fitting recess 72 of the camera head 18 to lock the peripheral portion of the locking groove portion 91 so as to surround at least a part of the outer peripheral surface of the drape fixture 90. Yes. In addition, you may provide this latching | locking part 92 in the state which covers the perimeter of the outer peripheral surface of the drape fixing tool 90. FIG.

  Further, the camera head 18 is provided with a rotation mechanism unit 95 between the camera head main body 93 and a connecting unit 94 for connecting to other devices such as the stereoscopic scope 2. The rotation mechanism 95 supports the connecting portion 94 so as to be rotatable about the center line of the camera head 18 with respect to the camera head main body 93. The stereoscopic scope 2 connected to the camera head 18 via the sterilization adapter 27 is supported by the rotation mechanism unit 95 of the camera head 18 so as to be rotatable around the axis of the center line of the camera head 18 together with the connection unit 94. ing.

  Next, the operation of the above configuration will be described. When the medical instrument system 1 according to the present embodiment is used, the camera head 18 is attached to the optical device mount 12 of the endoscope holding device 3 that is a device on the non-sterile region side. To the camera head 18. At this time, a sterilized drape 71, which is a transparent sheet, is mounted in a state of covering the entire device disposed in the non-sterile region such as the endoscope holding device 3 including the camera head 18 disposed on the non-sterile region side. .

  When the drape 71 is attached, the adapter side insertion portion 74 of the sterilization adapter 27 is inserted into the lumen of the drape fixture 90 around the drape opening 89. At this time, the upper and lower locking projections 76 on the outer surface of the adapter-side insertion portion 74 can be overcome by elastically deforming the drape fixture 90.

  After that, as shown in FIG. 6, the drape fixing tool 90 is attached to the camera head 18 before the positioning abutment surface 75 of the distal end portion of the adapter side insertion portion 74 is abutted against the inner bottom portion of the fitting recess 72 of the camera head 18. Is inserted into the locking groove 91 at the entrance of the fitting recess 72. At this time, the drape fixture 90 is locked in a state of surrounding at least a part of the outer peripheral surface of the drape fixture 90 by the locking portion 92 at the peripheral portion of the locking groove 91 of the camera head 18. Thereby, the installation work of the drape 71 is completed.

  Further, during use of the medical instrument system 1 of the present embodiment, an optical device connecting unit of the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18 by operating the support arm mechanism 5 of the endoscope holding device 3. The OU is supported so as to be freely movable.

  Further, the holding portion 22 of the operation lever 21 of the optical device holding portion 15 is held, and the changeover switch 23 is operated to switch the lock mechanism portion of the position adjustment mechanism 14 to the unlocked state. Thereby, the direction of the stereoscopic scope 2 and the like can be adjusted by freely moving the ball joint-shaped movable part in the bellows-shaped cover 16 of the position adjusting mechanism 14 on the base 13 of the optical device mounting part 12. .

  Further, if necessary, the engaging projection 19 of the camera head 18 can be pulled out from the engaging groove 17 of the optical device holding portion 15 by loosening the tightening of the fixing screw 20 of the optical device holding portion 15. Thereby, as shown in FIG. 7, the optical device connecting unit OU of the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18 can be removed from the optical device holding unit 15 of the endoscope holding device 3. Therefore, the operator can use the optical device connection unit OU separated from the endoscope holding device 3 while being held by the operator.

  Therefore, the above configuration has the following effects. That is, in the medical instrument system 1 of the present embodiment, a recessed locking groove 91 is formed at the entrance of the fitting recess 72 of the camera head 18, and the drape fixture 90 is formed by the peripheral portion of the locking groove 91. A locking portion 92 that locks at least part of the outer peripheral surface is formed. Then, when fixing the substantially frame-shaped drape fixing tool 90 of the drape 71 covering the entire device on the non-sterile region side including the camera head 18 disposed in the non-sterile region to the connection portion between the sterilization adapter 27 and the camera head 18. Further, the locking portion 92 of the connecting portion between the sterilization adapter 27 and the camera head 18 is locked so as to surround at least a part of the outer peripheral surface of the drape fixture 90. For this reason, since the drape fixture 90 is sandwiched between the sterilization adapter 27, the camera head 18, and the locking portion 92 of the camera head 18, the endoscope holding apparatus 3 is used during the use of the medical instrument system 1 of the present embodiment. Even if the drape 71 is pulled by operating the multi-stage arm of the support arm mechanism 5, the drape fixing tool 90 does not fall off. As a result, even if the drape 71 is pulled at the time of use, the drape fixture 90 at the connecting portion between the sterilization adapter 27 and the camera head 18 is not likely to come off. It is possible to prevent the non-sterile product from being exposed to the sterilized area.

  Further, since the frame-shaped drape fixture 90 at the peripheral portion of the opening 89 of the drape 71 is formed of a deformable flexible material, for example, an elastic body such as sponge, rubber, or foam, the sterilization adapter 27 and the camera head 18 are used. When the drape fixing tool 90 is fixed to the connecting portion, the drape fixing tool 90 provides a sealing effect between the sterilization adapter 27 and the camera head 18, and the liquid is transferred from the non-sterile area (unclean area) to the sterilized area. It can be prevented from flowing to (clean area).

  In the endoscope holding device 3 according to the present embodiment, an operation lever 21 for moving operation is provided on the optical device mounting portion 12 of the moving arm 7 at the most advanced position, and position adjustment is performed on the grip portion 22 of the operation lever 21. A changeover switch 23 is provided for switching the lock mechanism portion of the mechanism 14 between a locked state and an unlocked state. The change-over switch 23 has two operation buttons 24 and 25 for change-over operation respectively disposed on the upper and lower surfaces of the grip portion 22, and the two operation buttons 24 and 25 are operated when the change-over switch 23 is operated. By simultaneously pushing in, the changeover switch 23 can be operated. Therefore, when only one of the two operation buttons 24 and 25 is pushed in, the change-over switch 23 can be held in a non-operating state. It can be prevented from operating properly.

  Further, the operation lever 21 for moving the optical device holding unit 15 is extended to the opposite side to the direction of the center of gravity of the device held by the optical device holding unit 15. Then, the operator can operate the changeover switch 23 in a state where the operator grasps the grasping portion 22 of the operation lever 21 to switch the lock mechanism portion of the position adjusting mechanism 14 to the unlocked state. It is possible to prevent devices such as the optical device connection unit OU held by the optical device holding unit 15 during operation from being rapidly inclined toward the center of gravity.

  Further, in the present embodiment, the engagement protrusion 19 of the camera head 18 is pulled out from the engagement groove 17 of the optical device holder 15 by loosening the fastening of the fixing screw 20 of the optical device holder 15 as necessary. be able to. Thereby, as shown in FIG. 7, the optical equipment connecting unit OU of the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18 is removed from the optical equipment holding section 15 of the endoscope holding device 3, and this endoscope The optical device connection unit OU separated from the holding device 3 can also be used while being held by an operator.

  Further, in the present embodiment, when the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18 are connected (when the optical device connection unit OU is formed), as shown in FIG. An overlapping portion 88 having a triple structure is formed in which the fitting recess 72, the stereoscopic scope 2, and the sterilization adapter 27 are inserted together in an overlapping state. Therefore, the length of the portion where the fitting recess 72 of the camera head 18 overlaps the stereoscopic scope 2 and the sterilization adapter 27 can be made relatively long, so the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18. The connection portion between the stereoscopic scope 2, the sterilization adapter 27, and the camera head 18 can be stabilized.

  Further, in the stereoscopic scope 2 of the present embodiment, the lateral width of the second housing member 41 of the housing part 39 of the eyepiece part 30 is increased along the shape of the split prism 36 toward the connecting part side with the insertion part 28. A tapered cut-out surface 63 is formed in which the diameter gradually decreases. Therefore, since the wide part 29 of the stereoscopic scope 2 can be slimmed, interference between the endoscope and the treatment tool can be reduced when various treatment tools are used.

  FIG. 8 shows a second embodiment of the present invention. In the first embodiment (see FIGS. 1 to 7), the configuration in which the operation lever 21 for moving operation is attached to the optical device holding portion 15 of the optical device mounting portion 12 is shown. In the instrument system 101, an operation lever 102 for moving operation is fixed to the camera head 18.

  The operation lever 102 of the present embodiment has a substantially U-shaped arm 103. The lower end portion of the arm 103 is fixed to the upper end portion of the rotation mechanism portion 95 of the camera head 18. Further, the upper end portion of the arm 103 extends rearward, and a grip portion 104 that is gripped by the operator is disposed at the extended end portion of the arm 103. The grip 104 has a changeover switch 23 having the same configuration as the grip 22 of the first embodiment. Accordingly, the changeover switch 23 is disposed on the opposite side of the endoscope holding device 3 from the optical device mount 12 with the camera head 18 interposed therebetween.

  One end of the cable 105 is connected to the front end of the grip 104. This cable 105 incorporates a lead wire having one end connected to the changeover switch 23. The front end portion of the cable 105 is disposed along the U-shaped arm 103, and the rear end portion extends rearward.

  In the present embodiment, the operation lever 102 is separated from the optical device mount 12 of the endoscope holding device 3 together with the camera head 18. Further, since the operation lever 102 is fixed to the upper end portion of the rotation mechanism portion 95 of the camera head 18, the operation lever 102 does not move and the camera head 18 in the rotation mechanism portion 95 is indicated by an arrow in FIG. Can be rotated together with the stereoscopic scope 2 in the direction around the axis of the center line of the camera head 18.

  Therefore, the above configuration has the following effects. That is, in this embodiment, the same effect as that of the first embodiment can be obtained, and in this embodiment, the arm 103 of the operation lever 102 for moving operation is particularly connected to the upper end of the rotation mechanism unit 95 of the camera head 18. Therefore, the change-over switch 23 of the grip portion 104 can be arranged on the opposite side of the endoscope holding device 3 from the optical device mount portion 12 with the camera head 18 interposed therebetween. Therefore, it is easy to operate the changeover switch 23 from above the drape 71.

  Further, since the arm 103 of the operation lever 102 is disposed at a position away from the multistage arm of the support arm mechanism 5 of the endoscope holding device 3, the arm 103 of the operation lever 102 is supported by the support arm of the endoscope holding device 3. It does not interfere with the multistage arm of mechanism 5. Therefore, the operation lever 102 can be easily operated.

Furthermore, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.
Next, other characteristic technical matters of the present application are appended as follows.
Record
(Additional Item 1) The optical device mount portion includes a base, a holding portion that holds the second optical device, and a movable portion that supports the holding portion so as to be movable in an arbitrary direction on the base. A lock mechanism that locks the movable portion in an immobile state, and the endoscope holding device has one end fixed to the holding portion and the other center is held by the holding portion. An operation lever for moving operation that extends in the opposite direction to the direction of the position, a grip disposed at the extended end of the control lever, and a lock mechanism that is provided at the grip and locks the lock mechanism And a changeover switch for changing over to the unlocked state, and the changeover switch has a plurality of operation members for changeover operation, and the plurality of operation members are respectively arranged at different positions of the grip portion. The doctor according to claim 2, wherein Medical device system.

  (Operation of Additional Item 1) When the changeover switch of the grip portion of the operation lever is operated, the lock mechanism portion is switched between the locked state and the unlocked state by operating a plurality of operation members for switching operation. Furthermore, the holding unit on the base is moved in any direction by the operation lever for moving operation of the endoscope holding device in a state where the lock mechanism is switched to the unlocked state by the switch. .

  (Additional Item 2) The camera head has a camera head side connection portion connected to the optical device mount portion, and the optical device mount portion has a recessed shape that connects the camera head side connection portion in a detachable manner. The medical device according to claim 2, further comprising: a receiving portion; and a locking portion that detachably locks the camera head side connecting portion mounted in the inserted state in the receiving portion. system.

  (Operation of Additional Item 2) The camera head side coupling portion of the camera head is detachably coupled to the concave receiving portion of the optical device mounting portion, and the camera head side coupling is mounted while being inserted into the receiving portion. The part is detachably locked by the locking part.

  (Additional Item 3) The second optical device has a recessed fitting concave portion to which another device is connected, and the sterilization adapter is inserted into the fitting concave portion of the second optical device. An insertion hole into which the first optical device is inserted extends inside the adapter-side insertion portion, and the first optical device and the sterilization adapter overlap with the fitting recess of the second optical device. The medical device system according to claim 1, wherein the medical device system has a triple structure overlapping portion inserted together in a state.

  (Operation of Supplementary Item 3) By inserting the adapter-side insertion portion of the sterilization adapter into the fitting recess of the second optical device, and inserting the first optical device into the insertion hole inside the adapter-side insertion portion. In the fitting concave portion of the second optical device, an overlapping portion of a triple structure is formed in which the first optical device and the sterilization adapter are inserted together in an overlapping state.

  (Additional Item 4) The medical instrument system according to Additional Item 3, wherein the second optical device has a locking groove portion into which the drape fixture is inserted at an inlet portion of the fitting recess.

  (Operation of Supplementary Item 4) A drape fixture is inserted into the engaging groove portion of the entrance portion of the fitting concave portion of the second optical device to be engaged.

  (Additional Item 5) The endoscope includes an elongated insertion portion that is inserted into the body, and a wide portion that is connected to a proximal end portion of the insertion portion, and the wide portion is connected to the insertion portion. A three-dimensional image forming unit for forming a three-dimensional image, comprising: a dividing prism that divides a sent observation image; and two observation optical systems that respectively form two observation images divided by the dividing prism; A housing portion that accommodates the image forming portion, and the housing portion gradually decreases in width as it goes toward the connecting portion with the insertion portion along the shape of the split prism around the split prism. The medical device system according to claim 2, wherein the medical device system has a tapered cut surface.

  (Operation of Supplementary Item 5) When the various treatment instruments are used by slimming the wide portion at the tapered notch surface portion of the housing portion of the wide portion disposed at the proximal end portion of the insertion portion of the endoscope The interference between the endoscope and the treatment instrument is reduced.

  INDUSTRIAL APPLICABILITY The present invention is effective in the technical field of a medical instrument system in which a stereoscopic scope for operation is held in a sterilized area and the entire device placed in the non-sterile area is covered with drape.

The perspective view of the whole medical device system of the 1st Embodiment of this invention. The perspective view which shows the state by which the connection unit of the stereoscopic scope and camera head of the medical device system of 1st Embodiment is attached to the support arm of the endoscope holding | maintenance apparatus. The perspective view which shows the base end part of the stereoscopic scope of the medical device system of 1st Embodiment. The longitudinal cross-sectional view which shows the structure of the observation optical system of the stereo image formation part incorporated in the stereoscopic scope of the medical device system of 1st Embodiment. The disassembled perspective view for demonstrating the attachment state of the drape with which the medical device system of 1st Embodiment is mounted | worn. The longitudinal cross-sectional view of the principal part which shows the connection part of the stereoscopic scope of the medical instrument system of 1st Embodiment, a sterilization adapter, and a camera head. The perspective view which shows the state from which the connection unit of an endoscope and a camera head was removed from the mount part of the support arm of the endoscope holding | maintenance apparatus of the medical device system of 1st Embodiment. The perspective view which shows the state by which the connection unit of the stereoscopic scope and camera head of the medical device system of the 2nd Embodiment of this invention is attached to the support arm of the endoscope holding | maintenance apparatus. The longitudinal cross-sectional view of the principal part which shows an example of the fixed state of the conventional drape. (A) is a longitudinal sectional view of a main part showing another example of a conventional drape fixing state, and (B) is a main part showing a state in which the fixed part of the drape is pulled out and a part of the camera head is exposed. FIG.

Explanation of symbols

    2 ... Stereoscopic scope (first optical device), 18 ... Camera head (second optical device), 27 ... Sterilization adapter, 71 ... Drape, 90 ... Drape fixture, 92 ... Locking portion.

Claims (2)

A first optical instrument disposed in the sterilization area;
A second optical instrument located in the non-sterile area;
The first optical device and the second optical device are detachably connected, and an optical system is provided between the first optical device side optical system and the second optical device side optical system. A sterilization adapter, which has a light path to be connected, and can be sterilized;
A drape that covers the entire device on the non-sterile region side that is disposed in the non-sterile region including the second optical device;
A frame-shaped drape fixture having an inner peripheral surface and an outer peripheral surface, which is attached to the drape and fixed to a connecting portion between the sterilization adapter and the second optical instrument;
Comprising
The drape fixture is formed of a deformable flexible material,
The connecting portion between the sterilization adapter and the second optical device is locked with at least one of the sterilization adapter and the second optical device surrounding at least a part of the outer peripheral surface of the drape fixture. A medical device system comprising a locking portion that performs the above operation. The device on the non-sterile region side has at least a pedestal portion, an optical device mount portion at one end portion, and a connecting portion connected to the pedestal portion at the other end portion, and movably supports the optical device mount portion. Formed by an endoscope holding device having a multi-stage arm type support arm mechanism,
The first optical device is formed by an endoscope, and the second optical device is formed by a camera head having an imaging unit that captures an observation image of the endoscope. A medical device system according to claim 1.

Images