WO2024147203A1 - Tip drape and drape set - Google Patents

Abstract

Provided is a tip drape for covering at least a part of the tip section of an arm unit provided with an arm section and the tip section to which a medical device is connected and which is rotatably connected to the tip of the arm section. The tip drape is provided with: a bag-shaped part in which a sheet material is formed to a bag shape having an opening; a bag opening part; a tip fixation part at a first end part of the bottom part of the bag-shaped part, the tip fixation part being detachably attached to a tip attachment/detachment part provided to the tip section; and a mark part positioned a prescribed distance from the tip fixation part. The mark part is a portion that is distinguishable from the surrounding portion of the bag-shaped part, and the mark part is disposed at a prescribed position on the tip section. When the medical instrument is connected, the mark part is sandwiched between the medical instrument and the tip section.

Description

Front drape and drape set

This disclosure relates to a front drape that covers a front portion of an arm unit provided in a medical device. This disclosure also relates to a drape set that includes the front drape.

Surgeries using surgical robots are becoming more common. In surgeries using surgical robots, surgical instruments are connected to the tip of an arm unit equipped on the surgical robot to perform the desired procedure. Examples of surgical instruments that can be connected include forceps and an electric scalpel. In addition, an endoscope holding device equipped with an arm unit is also used during laparoscopic surgery. The endoscope holding device is used with an endoscope connected to the tip of the arm unit.

The arm unit provided in a medical device such as an endoscope holding device is equipped with multiple arm parts and multiple joints. The arm unit operates according to the user's operation to move a connected medical device such as an endoscope to a desired position and hold the medical device in a desired position.

Medical devices such as endoscope holding devices are difficult to sterilize because they contain electrical components. For this reason, parts that may come into contact with patients or medical staff, such as the arm unit, are covered with clean drapes.

Covering specific parts of medical equipment with clean drapes in this way is generally called draping. Hereinafter, areas in the operating room where a specific level of cleanliness is ensured will also be referred to as clean fields. Additionally, areas where a specific level of cleanliness is not ensured and which are less clean than clean fields will also be referred to as unclean fields.

By covering the arm unit with a drape, it is possible to separate the arm unit, which is an unclean field, from the clean field. In other words, medical personnel working in the operating room are prevented from directly touching the arm unit, which is an unclean field. In addition, it is possible to prevent instruments that have been sterilized or otherwise made clean from directly coming into contact with the arm unit, which is an unclean field.

Patent Document 1 discloses a drape unit that covers a surgical robot. In this drape unit, a bearing structure is provided between the drape that covers the tip of the arm of the surgical robot and the drape that covers the base of the arm. The drape unit has a bearing structure that rotates, which prevents the drape from being twisted and damaged when, for example, the tip of the arm of the surgical robot rotates relative to the base of the arm.

Patent Document 2 discloses a surgical drape for a robotic device. This surgical drape has a first drape portion having a predetermined size and an opening with a predetermined shape, and a second drape portion that overlaps the opening and covers at least a portion of the opening. The first drape portion is provided with a fixing element for maintaining the position of the opening aligned with the position of a predetermined part of the robotic device to which the draping is performed.

Patent No. 6806407 JP 2022-515864 A

The technology disclosed in Patent Document 1 had the problem that when the bearing structure rotates, friction generated inside the bearing structure becomes resistance to the rotational movement of the arm of the surgical robot. Also, the technology disclosed in Patent Document 2 had the problem that when the drape is fixed with a fixing element, the fixed drape may interfere with the rotational movement of the arm.

The present disclosure relates to a front drape that covers the front end of an arm unit and can be positioned in an appropriate position that does not interfere with the operation of the arm unit. The present disclosure also relates to a drape set that includes a front drape.

The leading drape, which is one aspect of the present disclosure, is a leading drape that covers at least a part of the leading part of a medical device having an arm unit that includes an arm portion and a leading part that is a part to which a medical device is connected and is rotatably connected to the leading side of the arm portion, and the leading drape includes a bag-shaped portion formed of a sheet material having an opening, a bag opening that is the opening of the bag-shaped shape, a leading fixed part that is detachably attached to a leading detachable part provided on the leading part at a first end of the bottom part of the bag-shaped part opposite the bag opening, and a mark part that is located at a position a predetermined distance away from the leading fixed part in a direction toward a second end of the bottom part opposite to the first end, and the mark part is a part that can be identified from the surrounding parts of the bag-shaped part, is located at a predetermined location on the leading part, and is sandwiched between the medical device and the leading part when the medical device is connected.

With the leading drape configured in this manner, the worker can place the leading drape in an appropriate position by attaching the leading fixed part to the leading detachable part and placing the mark part at a specified location on the leading part. Furthermore, since the mark part is sandwiched between the medical device and the leading part and fixed to the leading part, the leading drape can be maintained in an appropriate position. In other words, the leading drape can be placed in an appropriate position that does not interfere with the operation of the leading part, and the leading drape can be maintained in an appropriate position.

In one aspect of the present disclosure, the front drape preferably has a contraction portion near the bag-shaped opening that contracts the surrounding portion in a direction along the edge of the bag-shaped opening.

With the front drape configured in this manner, the bag-shaped opening is contracted in a direction along its edge by the contraction portion. When the front side portion is inserted through the bag-shaped opening and positioned inside the bag-shaped portion, the bag-shaped opening comes into contact with the corresponding portion of the front side portion. At this time, the bag-shaped opening comes into contact with the corresponding portion in a state in which it has been contracted by the contraction portion to a size corresponding to the corresponding portion of the front side portion. The state in which the bag-shaped opening has contracted to a size corresponding to the corresponding portion of the front side portion is maintained by the contraction portion. Therefore, the front drape can properly separate the portion of the front side portion positioned inside it from the outer area of the outer drape.

In one aspect of the present disclosure, it is preferable that the tip fixing portion has a rod shape extending from the first end toward the second end.

With the front drape configured in this manner, when the front fixing part is attached to the front detachable part, the part of the front drape surrounding the front fixing part is fixed linearly to a predetermined location on the front part along the direction in which the rod-shaped front fixing part extends. In addition, since it is arranged in a direction from the first end to the second end of the base, it is unlikely to get in the way when wrapping or folding the front drape.

The drape set according to one aspect of the present disclosure includes any of the front drapes described above and an arm drape that covers at least a portion of the arm portion.

With the drape set configured in this manner, the arm drape, which is the drape material that covers the arm portion, and the front drape, which is the drape material that covers the front portion, are configured as separate bodies, which prevents unnecessary friction from occurring when the front portion rotates. In other words, since no bearing structure or other configuration is provided between the arm drape and the front drape, unnecessary friction between the arm drape and the front drape is prevented, and interference with the rotational movement of the front portion is prevented.

The front drape disclosed herein allows the front drape to be positioned in an appropriate position and maintains the state in which the front drape is positioned in the appropriate position.

1A and 1B are diagrams illustrating an endoscope holding device in which draping is performed by a drape set according to the present disclosure. 11 is a diagram illustrating an example of a state in which an arm unit of an endoscope holding device is covered with a drape set. FIG. 4A and 4B are diagrams illustrating an arm unit of the endoscope holding device. 4A and 4B are diagrams illustrating an arm unit of the endoscope holding device. 4A and 4B are diagrams illustrating an arm unit of the endoscope holding device. FIG. 1 illustrates an arm drape of a drape set according to the present disclosure. FIG. 1 is a diagram illustrating a front drape of a drape set according to the present disclosure. FIG. 13 illustrates an auxiliary drape of a drape set according to the present disclosure. 1A and 1B are diagrams illustrating a front drape and an auxiliary drape according to the present disclosure. 1A to 1C are diagrams illustrating a draping method for an arm unit using a drape set according to the present disclosure. 1A to 1C are diagrams illustrating a draping method for an arm unit using a drape set according to the present disclosure. 1A to 1C are diagrams illustrating a draping method for an arm unit using a drape set according to the present disclosure. 1A to 1C are diagrams illustrating a draping method for an arm unit using a drape set according to the present disclosure. 1A to 1C are diagrams illustrating a draping method for an arm unit using a drape set according to the present disclosure. 1A to 1C are diagrams illustrating a draping method for an arm unit using a drape set according to the present disclosure. 1A to 1C are diagrams illustrating a draping method for an arm unit using a drape set according to the present disclosure. FIG. 11 is a flow diagram illustrating a method for draping an arm unit using a drape set according to the present disclosure.

1...endoscope holding device, 5...arm unit, 10...arm section, 10A...tip region, 11A-11D...arm parts, 13A-13D...joint, 15...tip side section, 16...holder section, 16A...holder main body, 16B...holder detachment section, 16C...holder base section, 16D...holder bottom section, 16E...lower surface, 17...rotating section, 17A...rotating base section, 17B...groove section, 19...joint section, 21...tip section, 23...arm detachment section, 23A...end surface, 25...tip detachment section, 50...device main body, 51...base section, 52...monitor, 70...endoscope, 100...drape set, 200...arm drape, 201, 301, 401...sheet material, 210...main body, 220...base side, 220A...upper region, 230...arm fixing part, 240...tip side, 240A...projection, 250A, 250B...fixing tape, 260...distal opening, 260A, 270A...opening, 260C...edge, 270...proximal opening, 280...edge, 300...tip drape, 310...bag-shaped part, 320...bag opening, 320A...opening, 320B...edge, 325...contraction part, 330...tip fixing part, 350...mark part, 370...bottom, 400...auxiliary drape, 410...tubular part, 460...distal opening, 470...proximal opening, 460A, 470A...opening

A drape set according to one embodiment of the present disclosure will be described with reference to Figures 1 to 16. In the following description, directions such as front/back, left/right, and up/down will refer to the directions shown in the figures unless otherwise specified.

Note that arrows, dashed lines, and diagonal lines indicating directions in each figure are included to facilitate understanding of the relationships between the figures and the shapes of each component or part. Therefore, the technical content shown in this disclosure is not limited to the directions in each figure. Diagonal lines do not necessarily indicate cross-sectional views.

At least one of each of the components or parts described with a reference number is provided, unless otherwise specified by "one". In other words, unless otherwise specified by "one", two or more of the components may be provided. The drape set shown in this disclosure includes at least the components or parts described with a reference number, as well as the structural parts shown in the drawings.

As shown in FIG. 2 and other figures, the drape set 100 of the present disclosure is a drape material that covers at least a portion of the arm unit 5 of an endoscope holding device 1 (see FIG. 1 and other figures) used in surgical procedures using an endoscope. The endoscope holding device 1 of the present disclosure is an example of a medical device.

1. Description of the endoscope holding device (medical device) First, an endoscope holding device 1 in which the drape set 100 of the present disclosure is used will be described. The endoscope holding device 1 is a device that supports an endoscope 70 at a desired position and in a desired posture. The endoscope 70 is an ophthalmic endoscope used in the field of ophthalmology. In other words, the endoscope holding device 1 is a medical device that holds an ophthalmic endoscope used during ophthalmic diagnosis, ophthalmic surgery, and the like.

The endoscope connected to the endoscope holding device 1 may be an endoscope used in other medical fields and is not limited to an ophthalmic endoscope. For example, the endoscope connected to the endoscope holding device 1 may be a laparoscope used in laparoscopic surgery or an endoscope used in other medical fields.

As shown in FIG. 1, the endoscope holding device 1 includes a device body 50 and an arm unit 5. The device body 50 includes a monitor 52. Images captured by the endoscope 70 are displayed on the monitor 52.

As shown in FIG. 1, the arm unit 5 comprises an arm portion 10 and a tip portion 15. The arm portion 10 comprises arm parts 11A-11D and joints 13A-13D. As shown in FIG. 1, the arm portion 10 is rotatably connected to the base portion 51 of the device body 50 via the joint 13D. In the following explanation, the side closer to the base portion 51 is also referred to as the proximal side, base side, or rear side. The side farther from the base portion 51 is also referred to as the distal side, tip side, or front side.

As shown in Figures 1 and 2, arm part 11A is rotatably connected to the tip of arm part 11B via joint 13A. Arm part 11A is rotatably connected to the tip of arm part 11B around axis VA1. As shown in Figures 2 to 4, axis VA1 passes through a specified location on joint 13A and extends vertically (Y1Y2 direction in Figures 3 and 4).

As shown in Figures 1 and 2, the base of arm part 11B is rotatably connected to the tip of arm part 11C via joint 13B. The base of arm part 11C is rotatably connected to the tip of arm part 11D via joint 13C. The base of arm part 11D is rotatably connected to joint 13D.

In other words, the arm unit 10 is a multi-joint robot arm whose posture can be changed according to the user's operation, and which supports the tip part 15 connected to the tip side at a desired position.

As shown in Figures 3 to 5, the tip part 15 is rotatably connected to the tip of the arm part 10 via a joint part 19. The joint part 19 is a joint located between the tip part 21, which is the tip end of the arm part 11A, and the rotating part 17 of the tip part 15.

As shown in Figures 2 to 5, etc., the tip portion 21 is provided with an arm attachment/detachment portion 23 into which the arm fixing portion 230, described in detail below, is removably fitted. As shown in Figures 2 to 5, etc., the arm attachment/detachment portion 23 is a groove that extends in the vertical direction (Y1Y2 direction in Figures 3 to 5) and has a shape corresponding to the cylindrical arm fixing portion 230. The arm attachment/detachment portion 23 is a groove that has a shape that allows the cylindrical arm fixing portion 230 to be detachably attached. The arm attachment/detachment portion 23 may have a shape different from that shown in Figures 2 to 5, etc., as long as it allows the arm fixing portion 230 to be detachably attached.

As shown in Figures 3 to 5, the tip portion 15 includes a holder portion 16 and a rotating portion 17. As shown in Figures 2 to 4 and 16, the holder portion 16 is the portion to which the endoscope 70 is connected. As shown in Figures 3 and 4, the holder portion 16 includes a holder main body 16A, a holder detachable portion 16B, and a holder base portion 16C.

As shown in FIG. 5, the holder body 16A is connected to the rotating part 17 so as to be rotatable around the axis HA. The rotatable direction of the holder body 16A is indicated by an arrow in FIG. 5. The axis HA is an axis that passes through a predetermined location of the rotating part 17 and extends in a direction intersecting with the axis VA2. As shown in FIG. 3 to 5, etc., the tip side of the holder body 16A (the X1 side in FIG. 3 to 5) is provided with the tip side detachable part 25. The tip side detachable part 25 is a part to which the tip side fixed part 330, the details of which will be described later, is detachably connected. The tip side detachable part 25 is a groove that extends in the same direction as the axis HA. The tip side detachable part 25 is a groove that has a shape that allows the tip side fixed part 330 to be detachably attached. The tip side detachable part 25 may have a shape different from the shape shown in FIG. 3 to 5, etc., as long as the tip side fixed part 330 can be detachably attached.

As shown in Figures 3-4 and 16, the holder detachable part 16B and the holder base part 16C are parts that secure the endoscope 70 to the holder main body 16A. The holder detachable part 16B and the holder base part 16C secure the main body 71 of the endoscope 70 by sandwiching it between them. The holder detachable part 16B is removably fixed to the holder base part 16C with the main body 71 sandwiched between it and the holder base part 16C.

As shown in Figs. 3 to 5, the holder base 16C is connected to the lower surface 16E of the holder main body 16A so that it can slide and move. The holder base 16C is connected to the lower surface 16E so that it can slide and move in the direction indicated by the arrow S in Figs. 3 to 4 (X1X2 direction in Figs. 3 to 4). The holder base 16C is connected to the lower surface 16E so that it can slide and move from the use position P1 to the retracted position P2. The holder base 16C is also connected to the lower surface 16E so that it can slide and move from the retracted position P2 to the use position P1. The use position P1 is the position where the holder base 16C is located when the endoscope 70 is used. The retracted position P2 is the position where the holder base 16C is located when the endoscope 70 is retracted to the proximal side by a retraction function, the details of which will be described later.

The holder section 16 has a retraction function that retracts the connected endoscope 70 to the proximal side (the base side) in accordance with the user's operation. More specifically, the holder section 16 has a function that quickly moves the position of the holder base section 16C from the use position P1 to the retracted position P2 in accordance with the user's operation.

The retraction function is a function for quickly moving the position of the holder base 16C from the use position P1 to the retracted position P2, thereby withdrawing the insertion section 72 at the tip of the endoscope 70 outside the patient. This retraction function is activated by the user's operation, for example, when the patient moves while the insertion section 72 is inserted into the patient.

When the retraction function is activated, the holder base 16C is rapidly moved from the use position P1 to the retracted position P2 by tension of a spring or the like. The holder base 16C may also be configured to rapidly move from the use position P1 to the retracted position P2 by other means. Figures 3, 5, 14, and 16 show the holder base 16C in the retracted position P2. Figure 4 shows the endoscope 70 in the use position P1.

As shown in Figures 3 and 4, the rotating part 17 is connected to the tip part 21 via the joint part 19 so as to be rotatable around the axis VA2. The axis VA2 is an axis that passes through a predetermined point of the tip part 21 and extends vertically (Y1Y2 direction in Figures 3 and 4). The rotating part 17 has a cylindrical rotating base 17A on the tip part 21 side. The rotating base 17A is connected to the tip part 21 via the joint part 19. The rotating base 17A has a groove 17B along its side surface as shown in Figures 3 to 5. This groove 17B is the part into which the contraction part 325 of the front drape 300, which will be described in detail later, is fitted and attached.

As shown in Figures 3, 4, 5, 15, etc., there is a gap between the tip side portion 15 and the arm portion 10. Specifically, as shown in Figures 3, 4, etc., there is a gap between the upper side surface 17C, which is the surface facing the tip portion 21 of the rotating base 17A, and the lower side surface 21C, which is the surface facing the rotating portion 17 of the tip portion 21. A part of the joint portion 19 is exposed from the gap between the upper side surface 17C and the lower side surface 21C. Hereinafter, the part of the joint portion 19 exposed between the upper side surface 17C and the lower side surface 21C will also be referred to as the connection portion 19A.

2. Description of Drape Set Next, the drape set 100 according to the present disclosure will be described.

The drape set 100 of the present disclosure includes an arm drape 200, a front drape 300, and an auxiliary drape 400 (see Figs. 2, 12, 13, etc.). The arm drape 200, the front drape 300, and the auxiliary drape 400 are each made of a flexible sheet material formed into a predetermined shape.

2-1. Regarding the Arm Drape The arm drape 200 is a drape material that covers a part of the tip side of the arm section 10, as shown in Fig. 2, Figs. 13 to 16, etc. The arm drape 200 is a drape material that covers the area from the tip section 21 of the arm section 10 to the part between the joints 13A and 13B in the arm part 11B. The arm drape 200 has a size that can cover the arm part 11A, the joint 13A, and at least a part of the tip side of the arm part 11B. In other words, the arm drape 200 has a size that can cover the tip side (distal side) part of the arm section 10 that may come into contact with an operator or a user of the endoscope holding device 1.

Hereinafter, the area on the tip side of the arm section 10 covered by the arm drape 200 will also be referred to as the tip side area 10A. That is, the area from the tip 21 to a predetermined position between joint 13A and joint 13B of arm part 11B will also be referred to as the tip side area 10A (see FIG. 2). The range of the tip side area 10A is not limited to the above range, so long as it is the range on the tip side (distal side) of the arm section 10 that may be contacted by an operator or a user of the endoscope holding device 1.

The arm drape 200 is a colorless, transparent, flexible sheet material 201 formed into a tubular shape. The tip portion of the arm drape 200 is formed into an L-shape as shown in FIG. 6. The arm drape 200 has a main body portion 210, a proximal opening 270, and a distal opening 260.

The distal opening 260 is a portion where an opening 260A is formed at the tip side (X1 side in FIG. 6) of the main body 210. The distal opening 260 is a region near the edge portion 260C between the front end a (X1 side in FIG. 6) of the linear joint 240L and the lower end (Y2 side in FIG. 6) of the linear joint 280L, and is a portion surrounded by the imaginary lines K1 and K2. The imaginary line K1 is a virtual straight line that passes through the lower end 230A (Y2 side in FIG. 6) of the arm fixing portion 230, which will be described in detail later, and extends parallel to the edge portion 260C. The imaginary line K2 is a virtual straight line that passes through the end a and extends in a direction intersecting with the edge portion 260C.

The proximal opening 270 is the portion where the opening 270A is formed on the base side of the main body portion 210 (the side indicated by X2 in FIG. 6). The proximal opening 270 is the portion near the side portion 270B in FIG. 6, between the side portion 270B and the line portion 270C that extends parallel to the side portion 270.

FIG. 6 shows arm drape 200 folded flat with the inner surfaces of its cylindrical shape in contact with each other. That is, FIG. 6 shows one side of arm drape 200 folded flat. Hereinafter, the part of sheet material 201 appearing on the front side of the page in FIG. 6 will also be referred to as sheet material 201A. Also, the part of sheet material 201 that has the same shape as sheet material 201A and is located on the back side of the page in FIG. 6 will also be referred to as sheet material 201B. That is, FIG. 6 shows arm drape 200 folded with sheet material 201A and sheet material 201B stacked flat.

6, sheet material 201A and sheet material 201B are connected at least at side portion 210A and side portion 210B. Sheet material 201A and sheet material 201B are also joined at linear joint 220L near side portion 220B, which extends in the same direction as side portion 220B. Sheet material 201A and sheet material 201B are also joined at linear joint 240L near side portion 240B, which extends in the same direction as side portion 240B. Sheet material 201A and sheet material 201B are joined at linear joint 245L, which extends from end a of linear joint 240L toward end b, which is located above end a (Y1 side in FIG. 6). Linear joint 220L and linear joint 240L are connected at the point where they intersect. Sheet material 201A and sheet material 201B are joined at linear joint 280L, which extends in the same direction as end edge 280, near end edge 280 that extends in a direction intersecting with edge portion 260C.

In FIG. 6, sheet material 201A and sheet material 201B are not joined at proximal opening 270. Furthermore, sheet material 201A and sheet material 201B are not joined at distal opening 260. Furthermore, sheet material 201A and sheet material 201B are not joined or connected in the area surrounded by sides 210A, 210B, linear joints 280L, 245L, 240L, 220L, and side 270B.

In the proximal opening 270, when sheet material 201A is pulled toward the front side of the paper in FIG. 6 and sheet material 201B is pulled toward the back side of the paper in FIG. 6, and sheet material 201B is separated from sheet material 201A, an opening 270A is formed between sheet material 201A and sheet material 201B (see FIG. 11, etc.). Hereinafter, separating overlapping sheet materials to form an opening therebetween is also referred to as opening. Also, the state in which overlapping sheet materials are separated to form an opening is also referred to as an open state. The opening 270A is the portion into which the leading portion 15 and leading region 10A are inserted when the arm drape 200 is placed on the arm portion 10.

When the sheet materials 201A, 201B are opened at the distal opening 260, an opening 260A is formed as shown in Figures 14 to 16. The distal opening 260 is the portion inside which the connection portion 19A and at least a portion of the rotating base 17A are disposed when the arm drape 200 is disposed in the tip region 10A (see Figures 14 to 16, etc.). The distal opening 260 is provided at a position corresponding to the connection portion 19A.

The distal opening 260 is configured to form an opening 260A large enough to allow the tip portion 15 and the tip region 10A to pass through. That is, the linear joints 240L, 245L are each provided so as to form an opening 260A large enough to allow the tip portion 15 and the tip region 10A to pass through.

6, the linear joint 245L extends obliquely upward (toward the Y1 side in FIG. 6) from the end a of the linear joint 240L. On the other hand, the linear joint 245L may extend upward (toward the Y1 side in FIG. 6) from the end a in a different direction from the above, as long as an opening 260A large enough to pass the tip portion 15 and the tip region 10A can be formed when the distal opening 260 is opened. In other words, the end b of the linear joint 245L may be located at a position different from that shown in FIG. 6, as long as it is a position above the linear joint 240L and is a position where an opening 260A large enough to pass the tip portion 15 and the tip region 10A can be formed when the distal opening 260 is opened.

Hereinafter, the area of the arm drape 200 behind the linear joint 220L (X2 side in FIG. 6) will be referred to as the base side 220. In addition, the portion extending from the upper area 220A, which is the area where the sheet material 201A and the sheet material 201B are not joined on the front side (X1 side in FIG. 6) of the base side 220, toward the front side (X1 side in FIG. 6) will be referred to as the tip side 240.

The tip side portion 240 is the portion that is positioned at the tip side of the tip region 10A when the arm drape 200 is placed on the arm section 10. Specifically, it is the portion that is positioned so as to cover at least a portion of the tip side of the arm part 11A. The base side portion 220 is the portion that is positioned at the base side of the tip region 10A when the arm drape 200 is placed on the arm section 10. Specifically, it is the portion that is positioned at the base side of the arm part 11A or on the arm part 11B.

The front side of the tip side portion 240 (the X1 side in FIG. 6) is provided with a protruding portion 240A that protrudes further forward (the X1 side in FIG. 6) than the end edge 280, as shown in FIG. 6. This protruding portion 240A is provided with an arm fixing portion 230. The arm fixing portion 230 is a cylindrical resin tube of a size that allows it to be detachably attached to the arm detachment portion 23. The arm fixing portion 230 may also be made of another material formed into a cylindrical shape. The arm fixing portion 230 may have a shape other than a cylindrical shape, so long as it is a shape that allows it to be detachably attached to the arm detachment portion 23.

The arm fixing part 230 is sandwiched between the sheet material 201A and the sheet material 201B, and the peripheral part is linearly attached and fixed to the protruding part 240A. The arm fixing part 230 may be fixed to the protruding part 240A by other methods.

The arm fixing part 230 is arranged so that the distance in the vertical direction (Y1Y2 direction in FIG. 6) between the end 230A on its lower side (Y2 side in FIG. 6) and the edge part 260C is a predetermined distance G. That is, the arm fixing part 230 is arranged so that the position of the end 230A in the vertical direction (Y1Y2 direction) is a predetermined distance G along the end side 280 from the end of the front side (X1 side in FIG. 6) of the edge part 260C. The distance G is the length by which the edge part 260C is positioned on the front side part 15 side of the connection part 19A when the arm fixing part 230 is attached to the arm detachable part 23 so that the end 230A is in the same position as the end face 23A of the arm detachable part 23 (see FIG. 15). The end face 23A is the end face on the lower side (Y2 side in FIGS. 3 to 5) of the arm detachable part 23.

The arm fixing part 230 is arranged on the protruding part 240A so that the height direction of the cylindrical shape is the same as the direction in which the end edge 280 extends. In other words, the arm fixing part 230 is arranged on the protruding part 240A so that the direction in which the arm fixing part 230 extends is the direction in which it intersects with the edge part 260C.

As shown in FIG. 15 etc., the distal opening 260 is formed so that when placed on the arm portion 10, its inner portion and edge portion 260C do not come into contact with the leading drape 300 placed on the leading side portion 15. The distal opening 260 has a size that allows the formation of an opening 260A of a size that does not allow its inner portion and edge portion 260C to come into contact with the leading drape 300 placed on the leading side portion 15 when placed on the arm portion 10. In other words, the linear joint 240L and the linear joint 245L are provided so that a distal opening 260 of such a size is formed.

As shown in FIG. 6, the arm drape 200 is provided with band-shaped fixing tapes 250A, 250B that extend in the up-down direction (Y1Y2 direction in FIG. 6). As shown in FIG. 16, the fixing tapes 250A, 250B are used to fix the arm drape 200 by wrapping them around the arm parts 11A and 11B after the arm drape 200 is placed in the tip region 10A.

The arm drape 200 has a size that allows the tip side part 15 to be inserted through the opening 270A of the proximal opening 270 and the tip side region 10A of the arm unit 5 to be positioned inside it. That is, the base side part 220 has a size that allows the tip side part 15 inserted through the proximal opening 270 and the tip side region 10A of the arm unit 5 to pass toward the tip side part 240 and the base side (proximal side) part of the tip side region 10A to be positioned inside it. The tip side part 240 has a size that allows the tip side part 15 inserted through the base side part 220 to be inserted close to the end edge 280 and further passed through the opening 260A of the distal opening 260 to be positioned outside the arm drape 200. The tip side part 240 has a size that allows the tip side part of the inserted tip side region 10A to be positioned inside it.

2, 11 to 16, etc., the front drape 300 is a drape material that covers the front part 15. The front drape 300 is a colorless, transparent, flexible sheet material 301 formed into a bag shape.

As shown in FIG. 7, the front drape 300 has a bag-shaped portion 310 and a bag opening 320 which is an opening of the bag-shaped portion. FIG. 7 shows the front drape 300 folded flat with the inner surfaces of the bag-shaped portion in contact with each other. That is, FIG. 7 shows one side of the front drape 300 folded flat. For the sake of explanation, FIG. 7 shows a state in which the contraction portion 325, the details of which will be described later, is not contracted. That is, the bag opening 320 is shown in a state in which it is not contracted by the contraction portion 325.

Hereinafter, the portion of sheet material 301 appearing on the front side of the page in FIG. 7 will also be referred to as sheet material 301A. Also, the portion of sheet material 301 that has the same shape as sheet material 301A and is located on the back side of the page in FIG. 7 will also be referred to as sheet material 301B. That is, FIG. 7 shows a state in which the bag-shaped leading drape 300 is folded flat, with sheet material 301A and sheet material 301B overlapping each other.

In FIG. 7, sheet material 301A and sheet material 301B are connected at sides 310A, 310B, and 310C. In FIG. 7, sheet material 301A and sheet material 301B are not connected or joined at any other portions than those mentioned above.

The bag opening 320 is the portion where the opening 320A is formed. The bag opening 320 is large enough to form an opening 320A large enough to pass the tip side portion 15 through. The bag-shaped portion 310 is also large enough to allow the tip side portion 15 to be placed inside it. Furthermore, the bag-shaped portion 310 is large enough not to interfere with the operation of the holder portion 16 placed inside it. For example, the bag-shaped portion 310 is large enough not to cause a part of the holder main body 16A to get caught on the bag-shaped portion 310 when the holder main body 16A rotates, thereby preventing the movement of the holder main body 16A from being hindered. Furthermore, the bag-shaped portion 310 is large enough not to interfere with the operation of the holder portion 16 placed inside it by the retraction function, which will be described in detail later.

The bag opening 320 is formed by folding the sheet material 301 back at the edge portion 320B toward the side portion 310C. The edge portion 320C on the end side of the folded sheet material 301 is joined to the sheet material 301 on the overlapping side.

The bag opening 320 is provided with a linear contraction portion 325 along edge portion 320B near edge portion 320B. The contraction portion 325 is sandwiched between the sheet material 301 constituting the bag-shaped portion 310 and the sheet material 301 folded back at edge portion 320B. The contraction portion 325 is a linearly formed contractile rubber material, and is a portion that contracts the bag opening 320 in the direction along edge portion 320B.

The contraction portion 325 may be made of a material other than rubber, so long as it can shrink the bag opening 320 in a direction along the edge portion 320B. Alternatively, the contraction portion 325 may be made of a material that does not have contraction properties, so long as it can shrink the bag opening 320 in a direction along the edge portion 320B. For example, the contraction portion 325 may be made of a string made of a material that does not have contraction properties. The contraction portion 325 may be configured so that the bag opening 320 shrinks when both ends of the string are pulled.

As shown in FIG. 7, the front drape 300 is provided with a front fixing portion 330 at end 370B. End 370B is the end portion of the bottom portion 370 on the bottom side of the bag-shaped portion 310 on the side of side portion 310B. Bottom portion 370 is the area near side portion 310C, and is the portion that forms the bottom side of the bag-shaped portion 310, which has a bag-like shape. End 370B is an example of a first end portion.

The tip fixing part 330 is a cylindrical resin tube of a size that allows it to be detachably attached to the tip detachable part 25. The tip fixing part 330 may be made of another material formed into a cylindrical shape. The tip fixing part 330 may also have another shape as long as it can be detachably attached to the tip detachable part 25.

The leading fixed portion 330 is sandwiched between the sheet material 301A and the sheet material 301B and is arranged at the end portion 370B, and the surrounding sheet material 301A and the sheet material 301B are joined and fixed. The leading fixed portion 330 may be fixed to the end portion 370B by other methods.

The tip fixing part 330 is positioned so that the height direction of its cylindrical shape is the same as the extension direction of the bottom part 370. In other words, the tip fixing part 330 is positioned so that the extension direction is the same as the direction from the end part 370B toward the end part 370A of the bottom part 370 on the opposite side from the end part 370B. The end part 370A is an example of a second end part.

The bottom 370 is provided with a marking portion 350. As shown in FIG. 7 etc., the marking portion 350 is disposed at a position that is a predetermined distance L1 away from the front fixing portion 330 along the bag-shaped portion 310 in the direction of the end portion 370A. Specifically, the marking portion 350 is disposed at a position where the distance between the marking portion 350 and the center of the height direction of the cylindrical shape of the front fixing portion 330 in the direction in which the side portion 310C extends is distance L1. Distance L1 is the same as or longer than distance L2 (see FIG. 5) between the front detachable portion 25 and the holder bottom portion 16D when the holder base portion 16C is disposed in the retracted position P2.

The mark portion 350 is a portion used as a marker for properly positioning the front drape 300 relative to the front portion 15. The mark portion 350 is configured so that the user can visually distinguish it from the surrounding area of the mark portion 350. To be more specific, the mark portion 350 is a portion of the bottom portion 370 where a non-translucent paint is applied to a predetermined location. The mark portion 350 may be provided in a predetermined portion of the front drape 300 by other methods as long as it can be visually distinguished from the surrounding area of the mark portion 350.

2-3. Auxiliary Drape The auxiliary drape 400 is a drape material used when placing the arm drape 200 and the front drape 300 on the arm unit 5, as shown in Figs.

As shown in FIG. 8, the auxiliary drape 400 is a flexible sheet material 401 formed into a cylindrical shape. FIG. 8 shows the auxiliary drape 400 folded flat so that the inner surfaces of the cylindrical shape are in contact with each other. That is, FIG. 8 shows one side of the auxiliary drape 400 folded flat.

Hereinafter, the portion of sheet material 401 that appears on the front side of the paper in FIG. 8 will also be referred to as sheet material 401A. In addition, the portion of sheet material 401 that has the same shape as sheet material 401A and is located on the back side of the paper in FIG. 8 will also be referred to as sheet material 401B. That is, FIG. 8 shows sheet material 401A and sheet material 401B stacked in a flat plane.

In FIG. 8, sheet material 401A and sheet material 401B are connected at side portion 410A and side portion 410B. In FIG. 8, sheet material 401A and sheet material 401B are not connected or joined at any other portion than the above.

The auxiliary drape 400 has a tubular portion 410, a distal opening 460, and a proximal opening 470. The distal opening 460 is the portion where the opening 460A is formed. The proximal opening 470 is the portion where the opening 470A is formed. The tubular portion 410 is the portion that has a tubular shape and has the openings 460A and 470A.

The auxiliary drape 400 is large enough to insert the tip portion 15 and the tip region 10A through the proximal opening 470 and cover the tip region 10A and the tip portion 15 by positioning them inside. The distal opening 460 is large enough to form an opening 460A that allows the tip portion 15 and the tip region 10A to pass through its inside. In other words, the auxiliary drape 400 is configured so that the distal opening 460 can be pulled close to the proximal opening 470 when the tip region 10A and the tip portion 15 are positioned inside the auxiliary drape 400.

Unlike sheet material 201 and sheet material 301, sheet material 401 is made of a colored material. Sheet material 401 has a color that allows auxiliary drape 400 to be identified when the auxiliary drape 400 is placed below arm drape 200 and visually observed from the arm drape 200 side. Also, sheet material 401 has a color that allows auxiliary drape 400 to be identified when the auxiliary drape 400 is placed below front drape 300 and visually observed from the arm drape 200 side.

As shown in FIG. 9, the auxiliary drape 400 is provided to the user with the distal opening 460 side of the auxiliary drape 400 inserted inside the leading drape 300. Specifically, the auxiliary drape 400 is packaged together with the leading drape 300 with the distal opening 460 side narrowed and the narrowed distal opening 460 side portion inserted inside the leading drape 300, and provided to the user. FIG. 9 shows the auxiliary drape 400 with the distal opening 460 side narrowed and the leading drape 300 with the bag opening 320 contracted by the contraction portion 325. By providing the auxiliary drape 400 with the distal opening 460 side inserted inside the leading drape 300, the worker can perform the draping work appropriately.

Sheet material 201 and sheet material 301 are made of a material that has a certain degree of flexibility and is translucent enough to identify sheet material 401 arranged below. Sheet material 201 and sheet material 301 may be made of a translucent material as long as they have a certain degree of flexibility and are translucent enough to identify sheet material 401 arranged below.

Alternatively, sheet material 201 and sheet material 301 may be made of a material having a different color, so long as the sheet material 401 arranged below can be distinguished. For example, sheet material 201 and sheet material 301 may be made of a material having a different color from sheet material 401, so that the sheet material 401 arranged below can be distinguished.

Sheet material 201 may be made of a material different from sheet material 301, so long as it has a certain degree of flexibility and is a translucent material that allows the sheet material 401 placed underneath to be identified.

3. Description of the Draping Method Next, a draping method for the endoscope holding device 1 using the drape set 100 of the present disclosure will be described with reference to Figs. 10 to 17. An operator who drapes the endoscope holding device 1 performs the work with at least his/her hands and fingers cleaned by washing and/or disinfecting them. Alternatively, the operator performs the work while wearing clean gloves. The drape set 100 used for draping is provided to the operator in a clean state that has been sterilized or the like.

First, the auxiliary drape 400 is used to cover the tip portion 15 and the tip region 10A of the arm unit 5 (S10: first placement step). Specifically, the proximal opening 470 is opened to form an opening 470A. Then, the tip portion 15 is inserted through the opening 470A, so that the tip portion 15 and the tip region 10A are placed inside the tubular portion 410.

As shown in FIG. 9, the auxiliary drape 400 is provided with its distal opening 460 side positioned inside the leading drape 300. The worker performs the above operations while the distal opening 460 side of the auxiliary drape 400 is inserted inside the leading drape 300.

As shown in FIG. 10, once the leading side portion 15 is positioned near the bag opening 320 of the leading drape 300, the portion of the auxiliary drape 400 on the side of the proximal opening 470 is moved to the base side of the leading region 10A. That is, the area from the leading side portion 15 to the leading portion of the arm part 11B is covered by the auxiliary drape 400. In other words, the leading side portion 15 and at least a portion of the leading region 10A are covered by the auxiliary drape 400.

Then, the front drape 300 is placed on the front side portion 15 (S20: second placement step). Specifically, the bag opening 320 is widened by pushing open the contraction portion 325, forming an opening 320A. Then, as shown in FIG. 11, the front side portion 15 is inserted into the formed opening 320A, so that the entire front side portion 15 is placed inside the bag-shaped portion 310.

Once the entire leading portion 15 is positioned inside the bag-shaped portion 310, adjust the position of the leading drape 300. Specifically, as shown in FIG. 11, adjust the position of the leading drape 300 so that the portion around the contraction portion 325 of the bag opening 320 is positioned on the rotating base 17A.

Then, the arm drape 200 is placed (S30: third placement step). That is, the arm drape 200 is used to cover the leading region 10A. Specifically, as shown in FIG. 11, the proximal opening 270 of the arm drape 200 is opened to form an opening 270A. Then, the leading side portion 15 covered with the leading drape 300 and the auxiliary drape 400 is inserted inside the arm drape 200 through the formed opening 270A. When the leading side portion 15 is inserted close to the end edge 280 of the tip side portion 240, the leading side portion 15 is passed through the opening 260A of the distal opening 260 and placed outside the arm drape 200 as shown in FIG. 12. That is, the leading side portion 15 covered with the leading drape 300 and the auxiliary drape 400 is placed outside the arm drape 200.

At this time, as shown in FIG. 12, the proximal opening 270 of the arm drape 200 is positioned near the joint 13A. In other words, the area from the tip 21 of the arm part 11A to the base side is covered by the arm drape 200.

Then, the auxiliary drape 400 is pulled out and moved to the base side (S40: pulling out step). Specifically, the portion of the tubular portion 410 near the proximal opening 470 is pulled in the base side direction to move the distal opening 460 to the base side.

When this is done, the leading side (the side of the distal opening 460) of the auxiliary drape 400 that is positioned inside the leading drape 300 slides between the leading drape 300 and the leading portion 15 and is pulled out to the outside of the leading drape 300.

Furthermore, when the portion of the tubular portion 410 near the proximal opening 470 is pulled toward the base side, the tip portion of the auxiliary drape 400 (the distal opening 460 side) slides between the tip region 10A and the arm drape 200 and is pulled toward the base side. In other words, when the tip of the auxiliary drape 400 is pulled toward the base side and the portion near the proximal opening 470 is pulled toward the base side, the tip portion of the auxiliary drape 400 slides between the tip region 10A and the arm drape 200 and is pulled toward the base side.

The tip side (the side of the distal opening 460) of the auxiliary drape 400 is pulled toward the base side so that the distal opening 460 is positioned closer to the base than the tip portion 21. In this way, the part on the side of the distal opening 460 is prevented from coming into contact with the tip drape 300 positioned at the tip portion 15. In other words, the part on the side of the distal opening 460 is prevented from coming into contact with the tip drape 300 and interfering with the rotational movement of the tip portion 15.

As shown in FIG. 13, it is preferable that the tip side of the auxiliary drape 400 (the side of the distal opening 460) is positioned closer to the base than the joint 13A. That is, it is preferable that the auxiliary drape 400 is positioned between the joint 13A and the joint 13B. In this way, the joint 13A is prevented from being doubly covered by the arm drape 200 and the auxiliary drape 400. That is, the auxiliary drape 400 is prevented from interfering with the rotational movement of the arm part 11A. The pulled-out auxiliary drape 400 may be stretched toward the base and used as a drape material to cover the arm parts 11B and 11C.

Then, the position of the arm drape 200 is adjusted (S50: adjustment step). Specifically, the proximal opening 270 is moved toward the base side so that the entire tip region 10A is covered by the arm drape 200. Furthermore, as shown in FIG. 14, the arm fixing part 230 is fitted into the arm attachment/detachment part 23 so that the tip side of the tip side part 240 is fixed to the tip part 21. When attaching the arm fixing part 230 to the arm attachment/detachment part 23, the end part 230A of the arm fixing part 230 is aligned with the end face 23A of the arm attachment/detachment part 23.

When the arm fixing portion 230 is attached to the arm attachment/detachment portion 23 and the position of the arm drape 200 is adjusted by smoothing out any wrinkles, the edge portion 260C is positioned a distance G toward the tip portion 15 from the end surface 23A of the arm attachment/detachment portion 23. At this time, the edge portion 260C is positioned closer to the tip portion 15 (the rotating base 17A side) than the connection portion 19A. When the arm drape 200 is positioned in this manner, the connection portion 19A and at least a portion of the tip portion 21 side of the rotating base 17A are surrounded by the distal opening 260, as shown in Figures 14 to 16.

Then, the position of the front drape 300 is adjusted (S60: front drape adjustment step). Specifically, as shown in Figs. 14 to 16, the position of the front drape 300 is readjusted so that the portion of the bag opening 320 near the contraction portion 325 is positioned on the rotating base 17A. The contraction portion 325 is also positioned so as to fit into the groove 17B. The portion of the bag opening 320 near the contraction portion 325 is tightened by contraction of the contraction portion 325, so that it remains in contact with the surface of the rotating base 17A. Furthermore, the front fixing portion 330 is attached to the front detachable portion 25, and the portion of the bag portion 310 around the front fixing portion 330 is fixed to the holder body 16A.

When adjusting the positioning of the arm drape 200 and the leading drape 300, adjust their respective positions so that the distal opening 260 does not come into contact with the leading drape 300.

16, the fixing tapes 250A, 250B are wrapped around the arm parts 11A, 11B to fix the arm drape 200 (S70: arm drape fixing step). That is, the fixing tapes 250A, 250B are wrapped around the arm parts 11A, 11B to prevent the base side portion 220 and the tip side portion 240 from getting in the way when the endoscope holding device 1 is used. At this time, the tip side portion 240 is lifted in a direction away from the tip side portion 15 to fix the arm drape 200. Specifically, the tip side portion 240 is lifted so that the position of the proximal side (the side of the arm part 11A) of the edge portion 260C in the vertical direction (the Y1Y2 direction in FIGS. 3 to 5) is the same as the position of the edge portion 260C on the side of the arm fixing portion 230. That is, the proximal side of the edge portion 260C is positioned unnecessarily lower, and the edge portion 260C and the distal opening 260 are prevented from contacting the leading drape 300 arranged on the leading side portion 15. When the leading side portion 240 is lifted in a direction away from the leading side portion 15, the linear joint 245L and its end b come into contact with the arm part 11A, and the proximal side of the edge portion 260C (the side of the arm part 11A) is prevented from being positioned higher than necessary. That is, the leading side portion 240 is prevented from being lifted more than necessary, and the proximal side of the connection portion 19A is prevented from being exposed.

Next, the endoscope 70 is connected to the holder unit 16 (S80: endoscope connection step). When connecting the endoscope 70 to the holder unit 16, the mark unit 350 is placed on the holder bottom unit 16D as shown in FIG. 14. Then, with the mark unit 350 placed on the holder bottom unit 16D, the main body 71 of the endoscope 70 is placed on the holder bottom unit 16D. Next, as shown in FIG. 16, the main body 71 is fixed by sandwiching it between the holder base unit 16C and the holder detachable unit 16B. The mark unit 350 and the portion of the bag-shaped unit 310 surrounding the mark unit 350 are sandwiched between the holder bottom unit 16D and the endoscope 70 and fixed to the holder base unit 16C.

The tip 370B of the tip drape 300 configured as described above is fixed to the holder part 16 by the tip fixing part 330. The part on the side of the tip 370A opposite the tip 370B is fixed to the holder part 16 by being sandwiched between the holder bottom part 16D and the main body 71 of the endoscope 70. Therefore, even when the holder part 16 performs a predetermined operation, the tip drape 300 is unlikely to come off or to shift or become displaced from its position. In other words, the tip drape 300 is maintained in a state where it is positioned on the tip part 15.

Furthermore, by attaching the leading fixing part 330 to the leading detachable part 25 and placing the mark part 350 on the holder bottom part 16D, the leading drape 300 can be placed in an appropriate position. Therefore, when the holder part 16 performs a rotating operation, the leading drape 300 can be placed in an appropriate position where the leading drape 300 does not interfere with the operation. In other words, a state in which the leading drape 300 is not placed appropriately and the holder part 16 is pulled by the leading drape 300, making it impossible to perform a specified operation, is suppressed.

In addition, by arranging the mark portion 350 on the holder bottom portion 16D, the front drape 300 can be positioned in an appropriate position that does not interfere with the operation of the retraction function of the holder portion 16. In other words, the front drape 300 is prevented from being positioned in an appropriate position, which would hinder the operation of the retraction function of the holder portion 16. Specifically, the holder base portion 16C is prevented from being pulled by the fixed front drape 300 while moving due to the operation of the retraction function, which would hinder the movement of the holder base portion 16C.

For example, if the holder base 16C is disposed at the use position P1 and the leading drape 300 is fixed without taking into consideration the distance L2 that the holder part 16C moves, the holder part 16C may be pulled by the fixed leading drape 300 as it moves to the retracted position P2, hindering its movement. Meanwhile, the mark part 350 of the leading drape 300 is provided at a position distance L1 away from the leading fixing part 330 toward the end 370A. Distance L1 is the same as or longer than distance L2 (see FIG. 4). Therefore, even if the holder base 16C moves from the use position P1 to the retracted position P2, the leading drape 300 does not hinder that movement.

In other words, by arranging the mark portion 350 on the holder bottom portion 16D, the leading drape 300 can be positioned and fixed in an appropriate position that does not interfere with the operation of the retraction function of the holder portion 16. For example, even when the holder base portion 16C is positioned in the use position P1, the leading drape 300 can be positioned and fixed in an appropriate position.

A contraction section 325 is provided near the bag opening 320 of the leading drape 300. Therefore, the leading drape 300 is placed on the leading section 15 with its bag opening 320 contracted and in close contact with the rotating base 17A. The state in which the bag opening 320 is in close contact with the rotating base 17A of the rotating section 17 is maintained by the contraction section 325.

As a result, the leading portion 15 arranged inside the leading drape 300 can be partitioned off from the outer area of the leading drape 300. In other words, the inner area of the bag-shaped portion 310 that houses the leading portion 15, which is an unclean area, is prevented from being connected to the outer clean area of the leading drape 300.

Because the tip fixing part 330 has a rod-like shape extending in a direction from the end 370B toward the end 370A, the surrounding part of the tip fixing part 330 is fixed linearly to the holder body 16A. Therefore, the surrounding part of the bottom 370 along the tip fixing part 330 comes into contact with the holder body 16A and is fixed linearly. In other words, the tip drape 300 is firmly fixed to the holder body 16A.

In addition, the front fixing part 330 is arranged in the same direction as the bottom part 370 extends, so it is unlikely to get in the way when folding or wrapping the front drape 300.

The arm drape 200 configured as described above is provided with an arm fixing portion 230 near the distal opening 260. This prevents the distal opening 260 from moving after the arm drape 200 is positioned. For example, the arm drape 200 is prevented from moving due to the operation of the arm unit 5, causing the distal opening 260 to change its position. This prevents the distal opening 260 from being changed in position, causing the connection portion 19A, the tip portion 21, and the like to become exposed.

Furthermore, the arm fixing part 230 is positioned so that its end part 230A is located at a position a predetermined distance along the end side 280 from the edge part 260C. Therefore, when the arm fixing part 230 is attached to the arm attachment part 23, the edge part 260C is located at a predetermined position. More specifically, when the arm fixing part 230 is attached to the arm attachment part 23 so that the end part 230A is aligned with the position of the end surface 23A, the edge part 260C is located at a predetermined position. In other words, when the arm fixing part 230 is attached to the arm attachment part 23, the distal opening 260 can be located at an appropriate position. The arm drape 200 can be maintained in a state where it is precisely positioned relative to the arm part 10.

Furthermore, when the arm fixing part 230 is attached to the arm detachment part 23, the edge part 260C is positioned closer to the tip part 15 than the connection part 19A, and the connection part 19A is surrounded by the part of the distal opening 260 near the edge part 260C. This prevents the connection part 19A from being exposed. Furthermore, simply by attaching the arm fixing part 230 to the arm detachment part 23, the edge part 260C can be positioned in an appropriate position.

Because the arm fixing part 230 has a rod-like shape, the surrounding part of the arm fixing part 230 is fixed linearly to the tip part 21. Therefore, the surrounding part of the arm fixing part 230 of the arm drape 200 comes into contact with and is fixed to a predetermined part of the tip part 21. In other words, the tip side part of the arm drape 200 (the tip side of the tip side part 240) is firmly fixed to the tip part 21.

In addition, when attaching the arm fixing part 230 to the arm detachment part 23, the attachment can be easily performed by attaching it to the arm detachment part 23 from its end side. In addition, when removing the arm fixing part 230 from the arm detachment part 23, the removal can be easily performed by lifting the end side in a direction away from the tip part 21.

The arm fixing part 230 is arranged so that the direction in which its rod shape extends intersects with the edge part 260C. Therefore, for example, compared to when the tip side part 240 is fixed to the tip part 21 in a direction along the edge part 260C, the distal opening 260 is less affected when the arm fixing part 230 is attached. For example, the shape of the opening 260A is prevented from changing significantly when the arm fixing part 230 is attached to the arm attachment/detachment part 23. Alternatively, after the arm fixing part 230 is attached to the arm attachment/detachment part 23, it is easy to further widen the opening 260A or adjust the position of the edge part 260C.

Furthermore, because the arm fixing part 230 is arranged to extend in the same direction as the axis VA1, it is less susceptible to the rotational movement of the arm part 11A. In other words, when the arm part 11A rotates around the axis VA1, the arm fixing part 230 is prevented from coming off the arm attachment/detachment part 23.

Because the arm fixing part 230 is provided on the protruding part 240A, the work of attaching the arm fixing part 230 to the arm attachment/detachment part 23 can be easily performed. In other words, the tip part of the tip side part 240 is less likely to interfere with the attachment of the arm fixing part 230, making it easy to attach the arm fixing part 230 to the arm attachment/detachment part 23. In addition, when attaching the arm fixing part 230 to the arm attachment/detachment part 23, damage to the part of the tip side part 240 in the vicinity is suppressed.

The drape set 100 configured as described above includes an arm drape 200 and a tip drape 300. The arm drape 200, which is a drape material covering the arm portion 10, and the tip drape 300, which is a drape material covering the tip portion 15, are configured as separate bodies, and no bearing structure or other configuration is provided between them. This prevents unnecessary friction from occurring between the arm drape 200 and the tip drape 300 when the tip portion 15 rotates. In particular, when an ophthalmic endoscope is used as the endoscope 70, since the insertion portion 72 is inserted into the patient's eyeball, it is not preferable for unnecessary friction to occur between the arm drape 200 and the tip drape 300. If such friction inhibits the rotation of the tip portion 15, even if only slightly, it may cause unnecessary stress on the patient. For example, friction may cause the rotational movement of the tip section 15 to be delayed, making it unable to adequately follow the patient's movements, and the insertion section 72 may exert unnecessary force on the patient. On the other hand, the arm drape 200 and tip drape 300 of the present disclosure prevent such unnecessary load from being applied to the patient. Even when a type of endoscope other than an ophthalmic endoscope is used as the endoscope 70, the insertion section 72 prevents such unnecessary load from being applied to the patient.

The drape set 100 includes an auxiliary drape 400. By using the auxiliary drape 400 to cover the leading side portion 15 and leading region 10A, when placing the leading drape 300 on the leading side portion 15, the worker is prevented from directly contacting unclean areas such as the leading side portion 15 and leading region 10A. Also, when placing the arm drape 200 on the leading region 10A, the worker is prevented from directly contacting unclean areas such as the leading side portion 15 and leading region 10A. In other words, when draping the leading side portion 15 and leading region 10A, the worker is prevented from directly contacting the arm unit 5, which is an unclean area.

The distal opening 460 of the auxiliary drape 400 is large enough to form an opening 460A through which the tip portion 15 and tip region 10A can pass. Therefore, when the tip portion 15 and tip region 10A are positioned inside the auxiliary drape 400, the tip portion of the auxiliary drape 400 (the distal opening 460 side) can be pulled toward the tip side by pulling the proximal opening 470 side of the auxiliary drape 400 toward the tip side. In other words, after the arm drape 200 and tip drape 300 are positioned, the auxiliary drape 400 can be pulled toward the tip side.

In this way, the auxiliary drape 400 is prevented from interfering with the operation of the arm unit 5. For example, the connection portion 19A is prevented from being doubly covered by the arm drape 200 and the auxiliary drape 400, which would hinder the rotational movement of the tip portion 15. In addition, if the distal opening 460 is moved closer to the base than the joint 13A, the joint 13A is prevented from being doubly covered by the arm drape 200 and the auxiliary drape 400, which would hinder the rotational movement of the arm part 11A.

Furthermore, the auxiliary drape 400 is formed from a sheet material 401 having a predetermined color, and the arm drape 200 and the leading drape 300 are formed from transparent sheet materials 201, 301. In other words, the arm drape 200 and the leading drape 300 are made from a translucent material that allows the sheet material 401 arranged underneath to be identified.

As a result, the worker can easily grasp the auxiliary drape 400 positioned between the arm drape 200 and the front region 10A. The worker can also easily grasp the auxiliary drape 400 positioned between the front side portion 15 and the front drape 300. In other words, the worker can easily pull out the auxiliary drape 400 to the base side. It is possible to provide a drape set 100 that makes it easy for the worker to perform draping work while preventing direct contact with the unclean area.

The technical scope of this disclosure is not limited to the above embodiment, and various modifications can be made without departing from the spirit of this disclosure. For example, the tip 21 may be configured to have an arm attachment/detachment part 23 that protrudes from the surface of the tip 21, and the arm fixing part 230 may have a structure that allows it to be attached to the protruding arm attachment/detachment part 23.

For example, the arm detachment part 23 may have a cylindrical shape protruding from the surface of the tip part 21, and the arm fixing part 230 may have a groove shape into which the arm detachment part 23 can be fitted. Alternatively, the arm fixing part 230 may have a structure that is attached to the arm detachment part 23 by sandwiching the protruding arm detachment part 23.

Alternatively, the holder body 16A may have a tip-side detachable part 25 that protrudes from its surface, and the tip-side fixed part 330 may have a structure that allows it to be attached to the protruding tip-side detachable part 25. For example, the tip-side detachable part 25 may have a cylindrical shape that protrudes from the surface of the holder body 16A, and the tip-side fixed part 330 may have a groove shape into which the tip-side detachable part 25 can be fitted. Alternatively, the tip-side fixed part 330 may have a structure that allows it to be attached to the tip-side detachable part 25 by sandwiching the tip-side detachable part 25.

In the above embodiment, the drape set 100 is described as being used for draping the endoscope holding device 1, but for example, the drape set 100 may be used to cover an arm unit of a surgical robot. Alternatively, for example, the drape set 100 may be used to cover an arm unit provided in another medical device.

The present disclosure is not limited to the above-mentioned embodiments as long as it conforms to the spirit of the disclosure described in the above-mentioned embodiments. Therefore, in the above-mentioned embodiments, any of the components illustrated or the components described with reference numerals may be eliminated.

Claims (4)

A front-side drape covers at least a part of a front-side portion of a medical device having an arm unit including an arm portion and a front-side portion to which a medical device is connected and which is rotatably connected to a front side of the arm portion,
The front drape is
A bag-shaped portion in which the sheet material is formed into a bag-like shape having an opening;
A bag opening which is an opening of the bag-shaped shape;
a front-side fixed portion that is detachably attached to a front-side detachable portion provided on the front side portion at a first end of a bottom portion of the bag-shaped portion on the opposite side to the bag opening;
a mark portion disposed at a position a predetermined distance away from the tip fixing portion in a direction toward a second end portion of the bottom portion opposite to the first end portion;
is provided,
The mark portion is a portion that can be identified from the surrounding portion of the bag-shaped portion, is disposed at a predetermined position on the front side portion, and is sandwiched between the medical instrument and the front side portion when the medical instrument is connected.
Front drape. The front drape is
A contraction portion is provided in the vicinity of the bag-shaped opening, which contracts the surrounding portion in a direction along the edge of the bag-shaped opening.
The leading drape according to claim 1 . The drape according to claim 1 or 2, wherein the tip fixing portion has a rod shape extending from the first end toward the second end. A drape set for covering the medical instrument support device,
A front drape according to any one of claims 1 to 3;
an arm drape for covering at least a portion of the arm portion;
Drape set with.

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