JP6367019B2 - Sterile drape - Google Patents

Description

  The present invention relates to a sterilized drape applied to a medical observation apparatus for observing a minute part of an object to be observed.

  2. Description of the Related Art Conventionally, a surgical microscope having a microscope unit and an arm that movably supports the microscope unit is known as a medical observation device for observing a minute part of a patient's brain or heart as an object to be observed. (For example, see Patent Document 1). In this surgical microscope, when moving the microscope unit, the user moves the arm to a desired position while pressing a switch for arm operation provided on the grip portion of the arm.

  When a patient is operated using a medical observation apparatus such as a surgical microscope, a sterilized drape is used to maintain the sterilized state of the surface (see, for example, Patent Documents 2 and 3). The sterilized drape is a bag-like member made of a material such as vinyl, and is mounted so as to cover the medical observation apparatus.

JP-A-5-173053 US Pat. No. 3,698,791 Japanese Patent No. 3704811

  By the way, when the grip part is provided with an input part that receives an operation instruction input to the microscope part as in Patent Document 1 described above, when the grip part is covered with a sterile drape, the grip part is moved when the microscope part is moved. An external force may act on the sterilized drape covering the part, causing deformation such as stretching or twisting. In this case, it is difficult for the user to input with the input unit, and the operability of the grip unit may be impaired. Further, excessive drape of the drape around the input unit can be made too much, making it difficult for the user to perform input on the input unit, which may impair the operability of the grip unit.

  The present invention has been made in view of the above, and provides a sterilized drape capable of maintaining good operability of a grip portion provided with an input portion for operation in a medical observation apparatus that is an application target. The purpose is to do.

In order to solve the above-described problems and achieve the object, the sterilization drape according to the present invention is gripped by a user when moving the microscope unit, and a microscope unit that magnifies and images a minute part of the object to be observed. The medical observation device is maintained in a sterilized state by covering the medical observation device with a grip portion provided on the surface of the grip portion and receiving an input of an operation instruction to the microscope portion. A sterilizing drape that is formed on a body of the sterilizing drape, and has an input part cover part that has a shape protruding so as to accommodate at least a part of the input part in a state of covering the medical observation device, and the input An attachment portion that is provided at a proximal end portion of the portion cover portion and is fixedly attached to the grip portion in a state of covering the medical observation device;
It is provided with.

  The sterilization drape according to the present invention is characterized in that, in the above invention, the attachment portion has a shape that can be fitted to a surface of the grip portion.

  The sterilizing drape according to the present invention is characterized in that, in the above-mentioned invention, the attachment portion is made of a ring-shaped elastic member that circulates around a proximal end portion of the input portion cover portion.

  In the sterilization drape according to the present invention, in the above invention, the medical observation apparatus has a function as the grip portion with the microscope portion having a columnar shape, and the input portion cover portion is provided in the microscope portion. At least a part of the input part can be accommodated, and the attachment part is attached to the microscope part.

  According to the present invention, an input part cover part formed on the body of the sterilized drape and having a shape protruding so as to accommodate at least a part of the input part in a state of covering the medical observation device, and the input part cover part And an attachment portion that is fixedly attached to the grip portion in a state where the medical observation device is covered, and an operation input portion is provided in the medical observation device that is an application target. It is possible to maintain good operability of the grip portion.

FIG. 1 is a diagram showing the configuration and usage of a sterilized drape according to Embodiment 1 of the present invention. FIG. 2 is an enlarged perspective view showing the configuration of the main part of the sterilized drape according to Embodiment 1 of the present invention and the configuration of the medical observation apparatus equipped with the main unit. FIG. 3 is a diagram schematically showing an outline of a method of attaching the sterilizing drape attachment part to the microscope part according to Embodiment 1 of the present invention. 4 is a side view in the direction of arrow A in FIG. FIG. 5 is a diagram schematically showing a situation where an operator operates the microscope unit of the sterilized drape according to Embodiment 1 of the present invention. FIG. 6 is an enlarged perspective view showing a configuration of a main part of a sterilized drape according to Embodiment 2 of the present invention and a configuration of a medical observation apparatus equipped with the main part. FIG. 7 is a side view in the direction of arrow C in FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described with reference to the accompanying drawings. Note that the drawings are merely schematic, and there are cases in which portions having different dimensional relationships and ratios are included between the drawings.

(Embodiment 1)
FIG. 1 is a diagram showing the configuration and usage of a sterilized drape according to Embodiment 1 of the present invention. The sterilized drape 1 shown in the figure is covered so as to cover a medical observation apparatus (hereinafter referred to as an observation apparatus) 2 having a function as a microscope for enlarging and imaging the fine structure of the observation object. Keep the surface sterilized. The main body of the sterilized drape 1 is made of a material such as vinyl and has a bag-like deformed shape that matches the shape of the observation device 2.

  FIG. 1 shows a situation where an operator 201 is performing an operation on a patient 202. In FIG. 1, the display device 3 displays an enlarged image of the surgical site of the patient 202 captured by the observation device 2. The surgeon 201 performs an operation while viewing an enlarged image of the surgical part of the patient 202 displayed by the display device 3.

  The observation apparatus 2 has a plurality of sets each including a base portion 4 that can move on the floor, two arm portions, and a joint portion that rotatably connects one of the two arm portions to the other. A support unit 5 supported by the base unit 4; and a columnar microscope unit 6 provided at the distal end of the support unit 5 to magnify and image a minute part of the object to be observed.

  FIG. 2 is an enlarged perspective view showing the configuration of the main part of the sterile drape 1 attached to the distal end portion of the observation device 2 and the configuration of the support portion 5 and the microscope portion 6 at the distal end portion of the observation device 2.

  First, the structure of the front-end | tip part of the support part 5 is demonstrated. The support unit 5 includes a first joint unit 51 that rotatably supports the microscope unit 6 on the distal end side, a first arm unit 52 that is fixed to the first joint unit 51 and extends from a side surface of the first joint unit 51, It has the 2nd joint part 53 which hold | maintains the 1st arm part 52 so that rotation is possible on the front end side, and the 2nd arm part 54 by which a front-end | tip part is fixed to the 2nd joint part 53.

The first joint portion 51 has a cylindrical shape, and holds the microscope portion 6 so as to be rotatable around a first axis O ₁ that is a central axis in the height direction.
The first arm portion 52 has a shape extending from the side surface of the first joint portion 51 in a direction orthogonal to the first axis O ₁ .
The second joint portion 53 has a cylindrical shape, is a central axis in the height direction, and rotates the first arm portion 52 around the second axis O ₂ , which is an axis orthogonal to the first axis O _1. Hold.
The second arm portion 54 forms a shape extending in a direction perpendicular to the second axis O _2.

  A plurality of joint portions and arm portions are provided in a portion from the base end side of the second arm portion 54 to the base portion 4 (see FIG. 1). In addition, the support part 5 should just have at least 1 set of the joint part which connects two arm parts and one of these two arm parts so that rotation with respect to the other is possible. For this reason, the structure of the part from the base end side of the 2nd arm part 54 to the base part 4 can be changed suitably.

  The first joint part 51 and the second joint part 53 have electromagnetic brakes that prohibit the rotation of the microscope part 6 and the first arm part 52, respectively. Each electromagnetic brake is released in a state where an arm operation switch 63 (described later) provided in the microscope unit 6 is pressed, and the microscope unit 6 and the first arm unit 52 are allowed to rotate. An air brake may be applied instead of the electromagnetic brake.

  The support portion 5 is formed with a hollow portion that can accommodate a plurality of cables. For this reason, it is possible to prevent a person or an object from being caught on the cable without exposing the cable to the outside of the observation apparatus 2. In addition, the size of the plurality of cables can be reduced as compared with the case where the cables are routed outside the main body, and the view of the operator 201 is not hindered.

  Next, the configuration of the microscope unit 6 will be described. The microscope unit 6 includes a cylindrical part 61 having a cylindrical shape, an imaging part 62 that is provided in a hollow part of the cylindrical part 61, and that magnifies and captures an image of the object to be observed, and the first joint part 51 and the second part. An arm operation switch 63 that accepts an operation input that releases the electromagnetic brake in the joint portion 53 and allows the rotation of each joint portion, and a cross lever 64 that can change the enlargement magnification in the imaging portion 62 and the focal length to the object to be observed. And projecting from the cylindrical portion 61 in the radial direction of the cylindrical portion 61, and provided with an arm operation switch 63 and a cross lever 64 on the main surface (outer peripheral surface), and a predetermined portion of the sterile drape 1 And a fixing portion 65 to be fixedly attached.

  The cylindrical part 61 has a cylindrical shape with a diameter smaller than that of the first joint part 51, and a cover glass for protecting the imaging part 62 is provided on the opening surface of the lower end part (not shown). The shape of the cylindrical portion 61 is not limited to a cylindrical shape, and may be a polygonal cylindrical shape.

The imaging unit 62 includes a plurality of lenses that are respectively arranged so that the optical axis coincides with the first axis O ₁ , an optical system 621 that focuses light from the object to be observed and forms an image, and an optical system The imaging device 622 generates an imaging signal by receiving and photoelectrically converting the light collected by the light source 621.

  The optical system 621 has a plurality of lenses, and can change the magnification of the observed object image and the focal length to the observed object in accordance with the operation of the cross lever 64.

  The image sensor 622 is configured using a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor). The imaging signal output by the imaging element 622 is transmitted to an image generation device (not shown) that generates display image data via a transmission cable provided in the internal space of the support unit 5.

  The imaging unit 62 has entered the first joint unit 51. In FIG. 2, the optical system 621 and the image sensor 622 that are installed in the hollow part of the cylindrical part 61 and the first joint part 51 are schematically shown by broken lines.

  The arm operation switch 63 is a push button type switch. While the surgeon 201 is pressing the arm operation switch 63, the electromagnetic brakes of the first joint portion 51 and the second joint portion 53 are released. The surgeon 201 operates the microscope unit 6 so as to face the side surface opposite to the side surface on which the arm operation switch 63 and the cross lever 64 are provided among the side surfaces of the cylindrical portion 61.

  The cross lever 64 can be operated along the height direction of the cylindrical portion 61 and the circumferential direction orthogonal to the height direction. The cross lever 64 is provided on the side surface of the cylindrical portion 61 and on the lower side surface of the arm operation switch 63 along the height direction of the cylindrical portion 61.

  When the cross lever 64 is operated along the height direction of the cylindrical portion 61 from the position shown in FIG. 2, the enlargement magnification is changed, and the cross lever 64 is operated along the circumferential direction of the cylindrical portion 61 from the position shown in FIG. Then, the focal distance to the object to be observed is changed. For example, when the cross lever 64 is moved upward along the height direction of the tubular portion 61, the enlargement magnification increases, and when the cross lever 64 is moved downward along the height direction of the tubular portion 61, the enlargement magnification decreases. Become. Further, when the cross lever 64 is moved clockwise along the circumferential direction of the cylindrical portion 61, the focal distance to the object to be observed is increased, and the cross lever 64 is rotated counterclockwise along the circumferential direction of the cylindrical portion 61. When it is moved, the focal distance to the object to be observed becomes closer. Note that the movement direction and operation assignment of the cross lever 64 are not limited to those described here.

  On the side surface of the fixed portion 65, an attachment convex portion 65a that can be fitted to an attachment concave portion 13a (described later) formed in the attachment portion 13 of the sterilizing drape 1 is formed. FIG. 3 is a diagram schematically showing how the mounting convex portion 65a and the mounting concave portion 13a are fitted.

  The microscope unit 6 having the above configuration also has a function as a grip unit that the operator 201 holds and operates when the operator 201 moves the visual field of the microscope unit 6.

  Next, the configuration of the portion of the sterilized drape 1 that is attached to the tip of the observation device 2 will be described. As shown in FIG. 2, the sterilized drape 1 is attached to the tip of a cylindrical portion 61 of the microscope section 6, and a cover glass (not shown) that protects the opening surface on which the microscope section 6 collects light from the object to be observed. The arm opening switch 11, the cross lever 64, and the fixing unit 65 are formed in a state where the cylindrical opening cover 11 provided with the sterilization drape 1 and a part of the main body of the sterilization drape 1 are mounted on the microscope unit 6. A switch cover (an example of an input portion cover portion) 12 that has a shape that protrudes in an accommodable manner, a plurality of attachment portions 13 that are provided at the base end portion of the switch cover 12 and are fixedly attached to the cylindrical portion 61; Have

FIG. 4 is a side view in the direction of arrow A in FIG. 2 (direction orthogonal to the first axis O ₁ and the second axis O ₂ ). The switch cover 12 protrudes in a rectangular parallelepiped shape in the main body of the sterilized drape 1. Such a switch cover 12 is formed by, for example, loosening a part of the main body of the sterilized drape 1 in a rectangular parallelepiped shape. Further, the switch cover 12 may be formed with a protrusion by processing the periphery of the bag-shaped sterilization drape 1, or may be formed by bonding a separately formed protrusion shape to the body of the sterilization drape 1. Also good.

  The attachment portion 13 is configured using a material harder than the main body of the sterilized drape 1 and is fixedly attached to the surface of the tubular portion 61. In addition, parts other than the cover glass of the opening cover 11 are also comprised from the material similar to the attachment part 13. FIG.

  As shown in FIG. 3, a mounting recess 13 a is formed on the back surface of the mounting portion 13 (the surface facing the microscope portion 6 when the sterilized drape 1 is mounted on the microscope portion 6). The attachment recess 13 a is fitted into an attachment protrusion 65 a provided on the surface of the fixed portion 65. Thereby, the attachment portion 13 is fixedly attached to the cylindrical portion 61.

  When the sterilizing drape 1 is mounted on the observation device 2, the opening cover 11 is attached to the tip of the cylindrical portion 61, and then the mounting recess 13 a of each mounting portion 13 is fitted to the corresponding mounting convex portion 65 a. Thus, the sterilized drape 1 is attached to the distal end portion of the observation device 2.

  By fixing the attachment portion 13 to the fixing portion 65, the switch cover 12 is fixed in a state where the arm operation switch 63, the cross lever 64, and the fixing portion 65 are accommodated. In this case, even if deformation occurs in the other main body portion of the sterilization drape 1, the influence of the deformation is blocked by the mounting portion 13 and does not reach the switch cover 12. Here, the switch cover 12 is configured to have an appropriate slack that does not hinder movement when the arm operation switch 63 and the cross lever 64 are operated, and does not have too much slack.

  FIG. 5 is a diagram schematically illustrating a situation where the operator 201 operates the microscope unit 6. The surgeon 201 faces the side surface (the right side surface in FIG. 5) on which the arm operation switch 63 and the cross lever 64 are provided on the side surface (the left side surface in FIG. 5) of the cylindrical portion 61. 6 is operated. At this time, the operator 201 operates the arm operation switch 63 or the cross lever 64 while holding the microscope unit 6 with the right hand 211.

  As shown in FIG. 1, the operator 201 looks at the image displayed by the display device 3 (the image captured by the microscope unit 6) and presses the microscope unit 6 while pressing the arm operation switch 63 of the microscope unit 6. Grasp and move to desired position. The operator 201 determines the field of view of the microscope unit 6 and then releases the finger from the arm operation switch 63. Thereby, an electromagnetic brake operates in the 1st joint part 51 and the 2nd joint part 53, and the visual field of the microscope part 6 is fixed. Thereafter, the operator 201 operates the cross lever 64 to adjust the enlargement magnification and the focal distance to the object to be observed.

  In order for the surgeon 201 to easily grasp the microscope unit 6 and to prevent the surgeon 201 from hindering the field of view when viewing the surgical unit of the display device 3 or the patient 202, for example, the outer diameter of the cylindrical portion 61 is reduced. More preferably, the height from the tip of the cylindrical portion 61 to the first joint portion 51 is about 80 to 200 mm.

  According to the first embodiment of the present invention described above, the switch cover 12 having a shape in which the arm operation switch 63 and the cross lever 64 are protruded so as to be accommodated while the observation apparatus 2 is covered, and the protrusion shape of the switch cover 12 In the observation device 2 that is an application target, the attachment portion 13 is provided so as to be fitted and attached to the fixing portion 65 of the microscope unit 6 in a state where the observation device 2 is covered. The operability of the microscope unit 6 provided with the arm operation switch 63 and the like as an operation input unit can be kept good.

  Further, according to the first embodiment, since the attachment portion 13 is fixed to the microscope portion 6, even if deformation such as stretching or twisting occurs in the main body of the sterilized drape 1, the switch cover 12 is affected. There is no. Therefore, it is possible to reliably prevent external force from being applied to the arm operation switch 63 and the cross lever 64 due to the deformation of the main body of the sterilization drape 1. In particular, since the cross lever 64 can be operated in four directions, an external force is easily applied by deformation of the main body of the sterilization drape 1. Therefore, when the switch cover 12 houses the cross lever 64 as in the first embodiment, a greater effect can be obtained.

  Further, according to the first embodiment, the switch cover 12 is configured to have an appropriate slack that does not hinder movement when the arm operation switch 63 and the cross lever 64 are operated and that does not have too much slack. Therefore, excessive sterilization drape 1 is loosened around the arm operation switch 63 and the cross lever 64, and it becomes difficult for the user to input the arm operation switch 63 and the cross lever 64. There is no.

  Further, according to the first embodiment, since the switch cover 12 also serves to position the sterilized drape 1 with respect to the microscope unit 6, the user can easily and appropriately attach the sterilized drape 1 to the microscope unit 6. .

  The shape of the switch cover 12 described above is merely an example, and can be appropriately changed according to the shape of the switch to be covered. In that case, it goes without saying that the number and the installation position of the mounting portions 13 can be appropriately changed according to the shape of the switch cover 12.

  Two or more mounting recesses 13 a may be formed for one mounting portion 13. In that case, it goes without saying that the number of mounting projections provided on the cylindrical portion 61 is also changed according to the number of mounting recesses.

(Embodiment 2)
FIG. 6 is an enlarged perspective view showing a configuration of a main part of a sterilized drape according to Embodiment 2 of the present invention and a configuration of a medical observation apparatus equipped with the main part. FIG. 7 is a side view in the direction of arrow C in FIG. 6 (direction orthogonal to the first axis O ₁ and the second axis O ₂ ). The sterilization drape 7 shown in FIGS. 6 and 7 is placed so as to cover the observation apparatus 2 and maintains the sterilized state of the surface of the observation apparatus 2. The main body of the sterilized drape 7 is made of the same material as the sterilized drape 1 of the first embodiment.

  The sterilized drape 7 includes an opening cover 71, a switch cover 72, and a mounting portion 73. The configurations of the opening cover 71 and the switch cover 72 are the same as the configurations of the opening cover 11 and the switch cover 12, respectively.

  The attachment portion 73 is made of a ring-shaped elastic member. At least a part of the attachment portion 73 is fixedly attached to the base end portion of the switch cover 72 in the main body of the sterilized drape 7 by adhesion or the like. The length of one round of the mounting portion 73 is slightly smaller than the length of one round of the base end portion of the fixed portion 65.

  When the sterilization drape 7 is mounted on the observation device 2, the opening cover 71 is attached to the tip of the cylindrical portion 61, the switch cover 72 is aligned with the fixing portion 65, and then the attachment portion 73 is extended. The sterilized drape 1 is attached to the distal end portion of the observation device 2 by being hooked on the fixing portion 65.

  Since the length of one round of the mounting portion 73 is slightly shorter than the length of one round of the base end portion of the fixing portion 65, the switch cover 72 is moved to the arm operation switch 63 and the cross by hooking the mounting portion 73 to the fixing portion 65. The lever 64 and the fixing portion 65 are fixed in a accommodated state. Therefore, even if the other body portion of the sterilizing drape 7 is deformed, the influence of the deformation is blocked by the mounting portion 73 and does not reach the switch cover 72.

  According to the second embodiment of the present invention described above, the switch cover 72 having a shape in which the arm operation switch 63 and the cross lever 64 are protruded so as to be accommodated while the observation apparatus 2 is covered, and the protrusion shape of the switch cover 72. The mounting portion 73 is provided on the base end portion of the microscope portion 6 and is made of a ring-shaped elastic member and is hooked on the fixing portion 65 so as to go around the base end portion of the fixing portion 65 of the microscope unit 6 while covering the observation device 2. Therefore, in the observation apparatus 2 that is an application target, it is possible to maintain good operability of the microscope unit 6 provided with the arm operation switch 63 and the like as an operation input unit.

  Further, according to the second embodiment, it is only necessary to hook the attachment portion 73 having a ring shape on the fixing portion 65, so that attachment to the observation device 2 is further facilitated.

(Other embodiments)
Up to this point, the mode for carrying out the present invention has been described. However, the present invention should not be limited only by the first and second embodiments described above. For example, the mounting portion is formed in a columnar shape or a polygonal column shape, and a groove portion capable of fitting a mounting portion having a columnar shape or a polygonal column shape is formed in the fixing portion of the medical observation apparatus, and the mounting portion is attached to the groove portion. The input part cover part may be fixedly attached to the medical observation apparatus by fitting.

  Further, the present invention can be applied even when a grip portion in which various switches are formed in a place different from the lens barrel as in a conventional surgical microscope.

  As described above, the present invention can include various embodiments and the like without departing from the technical idea described in the claims.

DESCRIPTION OF SYMBOLS 1, 7 Sterilization drape 2 Medical observation apparatus 3 Display apparatus 4 Base part 5 Support part 6 Microscope part 11, 71 Opening cover 12, 72 Switch cover 13, 73 Attachment part 51 1st joint part 52 1st arm part 53 2nd Joint part 54 Second arm part 61 Cylindrical part 62 Imaging part 63 Arm operation switch 64 Cross lever 65 Fixed part 13a Mounting concave part 65a Mounting convex part 621 Optical system 622 Imaging element

Claims (3)

And the microscope section having the function of a grip portion to be gripped by a user when moving the microscope a microscope columnar imaging an enlarged microscopic site of the specimen, the surface of the grip portion A sterilization drape that maintains a sterilized state of the medical observation device by covering the medical observation device with an input unit that receives an input of an operation instruction to the microscope unit,
An input part cover part formed on the body of the sterilized drape and having a shape protruding so as to accommodate at least a part of the input part provided in the microscope part in a state of covering the medical observation device;
An attachment portion that is provided at a base end portion of the input portion cover portion and is fixedly attached to the microscope portion in a state of covering the medical observation device;
A sterile drape characterized by comprising:   The sterilizing drape according to claim 1, wherein the attachment portion has a shape that can be fitted to a surface of the grip portion.   The sterilizing drape according to claim 1, wherein the attachment portion is formed of a ring-shaped elastic member that circulates around a proximal end portion of the input portion cover portion.

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