JP6249461B2 - Endoscope holder - Google Patents

Description

  The present invention relates to an endoscope holder.

  Conventionally, as an endoscope holder that fixes and holds an endoscope inserted into a body at a predetermined insertion position, a pair of semi-cylindrical clips provided at the distal end of an operation unit so as to be freely opened and closed, and the clips There is known one provided with a plurality of rotatable rollers extending in the length direction on the inner surface of the sheet (see Patent Document 1).

  When the endoscope is inserted into the body, the inside of the body may be observed at a predetermined insertion position or a necessary treatment may be performed, and in this case, it is desired to be fixed at the insertion position. Therefore, according to the conventional endoscope holder, the endoscope inserted into the body is held and held by the pair of semi-cylindrical clips so as to be fixed and held at a predetermined insertion position. be able to.

  In addition, it may be desired that the endoscope is rotated in order to observe the periphery of the endoscope or perform a necessary treatment while being fixed at the insertion position. At this time, according to the conventional endoscope holder, a plurality of rotatable rollers are provided on the inner surface of the clip, so that the endoscope fixed in the insertion position is rotated by the rollers. be able to.

JP-A-2015-198933

  In addition, it is desirable that the endoscope swings with respect to the axial direction in order to bring the distal end portion close to the intestinal wall, stomach wall, or the like while being fixed at the insertion position.

  In view of such circumstances, the present invention is capable of rotatably holding an endoscope inserted into the body at a predetermined insertion position and holding the endoscope in a state of being fixed at the insertion position. An object is to provide an endoscope holder that can be swung.

  In order to achieve this object, an endoscope holder according to the present invention is an endoscope holder that holds an endoscope inserted into a body fixed at a predetermined insertion position, and the endoscope is inserted through the endoscope holder. A hollow cylindrical holder body having an insertion hole and a plate-like body extending in the length direction of the insertion hole, and abutting against the endoscope inserted through the insertion hole First and second gripping members that sandwich the first and second gripping members, and a first elastic member that is disposed between the first and second gripping members and biases the first and second gripping members away from each other. A member, a pressing member that presses the first gripping member in the direction of the second gripping member against the urging force of the first elastic member, and a switching mechanism that holds or releases the pressing state by the pressing member And the surfaces of the first and second gripping members that contact the endoscope are rotated along the length direction of the insertion hole. And a second gripping member disposed between the second gripping member and the inner wall of the insertion hole to support the second gripping member in a swingable manner in the length direction of the insertion hole. And 2 elastic members.

  An endoscope holder according to the present invention includes first and second holding members made of a plate-like body extending in the length direction of an insertion hole in an insertion hole of a hollow cylindrical holder body. A first elastic member is disposed between the first and second gripping members to urge the first and second gripping members in a direction away from each other. Therefore, the first holding member is pressed in the direction of the second holding member against the urging force of the first elastic member by the pressing member, whereby the endoscope is held in the second holding state. Hold between the members. The pressing state by the pressing member is held by the switching mechanism. As a result, the endoscope holder of the present invention can hold the endoscope between the first and second gripping members, The inserted endoscope can be fixed at a predetermined insertion position.

  At this time, the first and second gripping members are provided with a roller along the length direction of the insertion hole on the surface in contact with the endoscope, and the roller is rotatable. Therefore, the endoscope held between the first and second gripping members can be rotated while being fixed at a predetermined insertion position in the body by the roller.

  At this time, the second gripping member is held swingably in the length direction of the insertion hole by a second elastic member disposed between the inner wall of the insertion hole. . Therefore, the endoscope sandwiched between the first and second gripping members is fixed at a predetermined insertion position in the body, and in other words, the endoscope has a length direction, in other words, the endoscope. The first and second gripping members can be swung with respect to the axial direction.

  The first gripping member can be restored to the original state by the urging force of the first elastic member when the pressing state by the pressing member is released by the switching mechanism.

  In the endoscope holder according to the present invention, the first holding member is disposed between the first holding member and the pressing member and supports the first holding member so as to be swingable with respect to the length direction of the insertion hole. Three elastic members may be provided.

  According to this, the first holding member is also held by the third elastic member disposed between the pressing member and the first holding member so as to be swingable with respect to the length direction of the insertion hole. The endoscope sandwiched between the first and second gripping members is more easily swung together with the first and second gripping members with respect to the length direction of the insertion hole. Can do.

  In the endoscope holder according to the present invention, it is preferable that the second elastic member is disposed at least at two locations along the length direction of the insertion hole. Since the second elastic member is disposed at least at two locations along the length direction of the insertion hole, the second gripping member can be stably swung.

  Moreover, it is preferable that the endoscope holder of the present invention includes a restriction member that restricts the first and second gripping members from approaching each other on the inner wall surface of the insertion hole. In the endoscope holder according to the present invention, the restriction member is provided on the inner wall surface of the insertion hole so that the endoscope is sandwiched between the first and second gripping members excessively firmly. It is possible to prevent the endoscope from being damaged.

  In addition, the endoscope holder of the present invention includes a columnar member that is at least one opposed to the insertion hole with the central axis of the insertion hole interposed therebetween, and the first and second gripping members include the columnar member. It is preferable that a hole portion to be inserted is provided, and the hole portion has a gap at least in the length direction of the insertion hole with respect to the columnar member.

  The first and second gripping members include the hole portion, and the columnar member is inserted through the hole portion. Therefore, when the pressing member is pressed or released, the columnar member is moved along the columnar member. Can move.

  On the other hand, when the first and second gripping members swing as described above, there is a concern that the swinging may be hindered by interference with the columnar member. However, in the endoscope holder according to the present invention, since the hole portion has a gap at least in the length direction of the insertion hole with respect to the columnar member, the first and second gripping members swing. In addition, the columnar member can be prevented from interfering with the first and second gripping members.

  In addition, the endoscope holder of the present invention preferably includes a fixing member that is provided on the outer peripheral surface of the tip of the holder main body and detachably fixes the holder main body to the mouthpiece. The endoscope holder of the present invention can hold the endoscope inserted into the body through the mouthpiece by being fixed to the mouthpiece by the fixing member.

  In addition, the endoscope holder of the present invention includes an arm that supports the holder main body at an arbitrary position and posture, and the holder main body is integrally fixed to the distal end portion of the arm or is detachable from the distal end portion. It may be attached to. According to this, the endoscope can be held at an appropriate position and posture corresponding to various situations by supporting the endoscope holder at an arbitrary position and posture with the arm.

  In this case, the endoscope holder according to the present invention may have arm fixing means for detachably fixing the base end portion of the arm to the frame or rail portion of the bed or other fixing member. Accordingly, the arm can be fixed to the bed or the like, and the holder main body can be held in an arbitrary posture at an arbitrary position in the space on the bed by the arm. Thereby, an endoscope can be hold | maintained in the suitable position and attitude | position according to the various conditions of the patient on whom a procedure is performed on a bed.

  In the endoscope holder of the present invention, the endoscope held by the endoscope holder may be a large intestine endoscope. According to this, it is possible to perform an inspection with a colonoscope on a patient on a bed while appropriately holding the colonoscope as described above.

  In addition, the endoscope holder of the present invention may have a deaeration prevention valve that seals between the endoscope inserted into the insertion hole and the inner wall of the insertion hole. According to this, deaeration from the body into which the endoscope is inserted can be prevented, and the visual field of the endoscope in the body can always be maintained in a good state.

The perspective view which shows the structure of the endoscope holder of this invention. A is a side view showing a state before the endoscope holder is fixed to the mouthpiece, and B is a side view showing a state after the endoscope holder is fixed to the mouthpiece. III-III sectional view taken on the line of FIG. IV-IV sectional view taken on the line of FIG. The top view of the holding member shown in FIG. FIG. 4 is a schematic cross-sectional view showing a state when the gripping member shown in FIG. 3 swings. 1A is a perspective view showing a state in which the endoscope holder of FIG. 1 is used for a colonoscope using an arm, and B is an arrow view as viewed in the Y direction of A. FIG. The figure which shows the front-end | tip part of the arm to which the holder main body of the endoscope holder of FIG. 1 was fixed integrally. 1A is a front view showing a distal end portion of an arm to which a holder main body of the endoscope holder of FIG. 1 is detachably attached, and B is a bottom view thereof. FIG. The figure which shows the method of fixing the base end part of the arm of FIG. 7 to the bed with a rail with a clamp. The front view of the clamp with which the base end part of the arm of FIG. 10 was fixed. The figure which shows the method of fixing the base end part of the arm of FIG. 7 to a bed frame with a clamp. The front view of the C-type clamp to which the base end part of the arm of FIG. 12 was fixed.

  Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  As shown in FIG. 1, the endoscope holder 1 of the present embodiment includes a hollow cylindrical holder body 3 having an insertion hole 2 through which the endoscope E is inserted. The holder body 3 includes a large diameter portion 3a and a small diameter portion 3b protruding from the tip of the large diameter portion 3a. The insertion hole 2 passes through the large diameter portion 3a and the small diameter portion 3b. In addition, a fixing member 4 composed of a pair of protrusions is provided at the tip of the small diameter portion 3b.

  The endoscope E is inserted into a predetermined position in the body through a mouthpiece P and an overtube T connected to the mouthpiece P as shown in FIG. 2A, for example. At this time, the endoscope holder 1 is in a state where the endoscope E is inserted through the insertion hole 2 and is moved in the direction of the mouthpiece P as indicated by an arrow.

  In this way, as shown in FIG. 2B, the fixing member 4 composed of a pair of protrusions provided at the tip of the small diameter portion 3b of the holder body 3 is fitted into the recess 5 provided in the mouthpiece P, The endoscope holder 1 can be detachably fixed to the mouthpiece P.

  As shown in FIGS. 3 and 4, the endoscope holder 1 according to the present embodiment includes a pair of columnar members 6 a and 6 b erected with the central axis inside the insertion hole 2, and the insertion hole 2. First and second holding members 7a and 7b made of a plate-like body extending in the length direction are provided. As shown in FIG. 3, the first and second gripping members 7 a and 7 b include a cross-sectional arc-shaped surface 8 and flat plate-like surfaces 9 connected to both ends thereof. Each arcuate surface 8 is provided with a pair of rollers 10 rotatably along the length direction of the insertion hole 2.

  The flat surface 9 is provided with a hole 11, and the columnar members 6 a and 6 b are inserted through the hole 11. As a result, the first and second gripping members 7a and 7b are movable along the columnar members 6a and 6b.

  In FIG. 5, the hole 11 is a long hole extending in the length direction of the insertion hole 2, but the hole 11 is at least spaced from the columnar members 6 a and 6 b in the length direction of the insertion hole 2. May be provided, and a round hole having a gap on the entire circumference of the insertion hole 2 may be used. Further, in the case of a long hole, the hole 11 is the narrowest at the center in the thickness direction of the first and second gripping members 7a and 7b in the cross section in the length direction, and the columnar members 6a and 6b are inserted therethrough. It may have a shape (X shape, or a V shape in the upper half and a Λ shape in the lower half) having a gap and gradually expanding from the central portion toward the surface.

  Between the first and second gripping members 7a and 7b, there are springs 12a and 12b as first elastic members that bias the first and second gripping members 7a and 7b in a direction away from each other. The columnar members 6a and 6b are arranged as axes.

  The first gripping member 7a is connected to a pressing member 13 provided through the side wall of the large-diameter portion 3a of the holder body 3 via a spring 14 as a third elastic member. The spring 14 is built in the pressing member 13. Here, the first gripping member 7a is pressed in the direction of the second gripping member 7b against the urging force of the springs 12a and 12b by the pressing member 13. The spring 14 is not essential and may be omitted.

  On the other hand, the second gripping member 7b is held by a spring 15 as a second elastic member disposed between the inner wall surface of the large-diameter portion 3a of the holder body 3. As shown in FIG. 4, in this embodiment, the springs 15 are provided at two locations along the length direction of the insertion hole 2, but may be provided at one location or at three or more locations.

  For example, the pressing member 13 moves the first holding member 7a in the direction of the second holding member 7b by a ratchet mechanism that locks the rack 16 provided on the side surface with a pawl 18 provided on a lever 17 serving as a switching mechanism. The pressing state of pressing can be maintained. The lever 17 is urged toward the pressing member 13 by a spring 19. In the ratchet mechanism, when the pressing member 13 is pressed, the rack 16 presses the pawl 18, so that the pawl 18 moves away from the pressing member 13, and when the rack 16 passes the pawl 18, the pawl 18 is pressed again. It moves in 13 directions and is locked to the rack 16.

  Further, as shown by an arrow in FIG. 1, the lever 17 is operated in a direction away from the pressing member 13 against the urging force of the spring 19, thereby releasing the latch 16 from the pawl 18. This can release the pressed state of the first gripping member 7a.

  In this embodiment, the pressing member 13 and the switching mechanism are constituted by the ratchet mechanism. However, a so-called two-stage knock mechanism (see, for example, Japanese Patent Laid-Open No. 9-99691), a heart cam mechanism (for example, Japanese Patent Laid-Open No. 2014-11068). Or the like).

  As shown in FIG. 5 as an example of the second gripping member 7b, the hole 11 is provided at two places before and after the flat plate-like surface 9 on both sides of the arcuate surface 8, for a total of four. In the present embodiment, the columnar members 6a and 6b are provided on each flat plate surface 9 in a diagonal direction with respect to the four holes 11 described above, and a total of two are provided in the diagonal direction. A pair is sandwiched. However, four columnar members 6a and 6b may be provided in each of the four holes 11, one in total.

  Note that the endoscope holder 1 of the present embodiment includes a first grip member 7a, a second grip member 7a, between the first and second grip members 7a, 7b on the inner wall surface of the large diameter portion 3a of the holder body 3. A stopper 20 as a restricting member that restricts the proximity of 7b may be provided. By providing the stopper 20, it is possible to prevent the endoscope E from being damaged excessively between the first and second gripping members 7a and 7b and thereby preventing the endoscope E from being damaged. it can. The stopper 20 may extend to a predetermined length along the length direction of the insertion hole 2, or may be provided intermittently at a point along the length direction of the insertion hole 2.

  The endoscope holder 1 may have a deaeration prevention valve 21 for preventing deaeration from the body observed by the endoscope E and maintaining a good observation field. As shown in FIG. 4, the deaeration prevention valve 21 is, for example, between the fixed annular member 22 and a surface that forms a step to a portion where the diameter of the rear end portion of the small diameter portion 3 b increases. It can be fixed by crimping or welding.

  The deaeration prevention valve 21 is configured such that when the endoscope E is inserted through the insertion hole 2, the endoscope E passes through the opening hole at the center of the deaeration prevention valve 21. And the insertion hole 2 have a function of sealing.

  Next, the operation of the endoscope holder 1 according to this embodiment will be described.

  The endoscope holder 1 of the present embodiment is used in a state where an endoscope E inserted at a predetermined position in the body via a mouthpiece P and an overtube T is inserted into the insertion hole 2, for example. At this time, the endoscope holder 1 is fixedly connected to the mouthpiece P by fitting the fixing member 4 into the recess 5 provided in the mouthpiece P, as shown in FIG. 2B.

  Next, when the pressing member 13 shown in FIGS. 3 and 4 is pressed, the first and second gripping members 7a and 7b are guided by the columnar members 6a and 6b and moved downward, and the first gripping member 7a is moved downward. The springs 12a and 12b are pressed in the direction of the second gripping member 7b against the urging force of the springs 12a and 12b. At this time, as described above, the rack 16 of the pressing member 13 is locked to the pawl 18 of the lever 17, so that the pressing state in which the first holding member 7a is pressed in the direction of the second holding member 7b is maintained. Then, the endoscope E is sandwiched and held between the first and second gripping members 7a and 7b. As a result, the endoscope E inserted into the body is fixed at a predetermined insertion position by the endoscope holder 1.

  At this time, the endoscope holder 1 includes a ratchet mechanism in which the rack 16 of the pressing member 13 is engaged with the pawl 18 of the lever 17, and the first gripping member 7 a is gradually stepped on to the second gripping member 7 b. Can be close. As a result, regardless of the diameter of the endoscope E, the endoscope E can be reliably held between the first and second gripping members 7a and 7b.

  In the endoscope holder 1, the roller 10 is rotatably provided on the arcuate surfaces 8 of the first and second gripping members 7a and 7b, so that the endoscope E is fixed at a predetermined insertion position. It can be rotated while standing.

  In the endoscope holder 1, the first gripping member 7 a is disposed between the pressing member 13 and the second gripping member 7 b is disposed between the inner wall of the large-diameter portion 3 a and the spring 14. Both springs 15 are held so as to be swingable with respect to the length direction of the insertion hole 2. Therefore, the endoscope E can swing together with the first and second gripping members 7a and 7b with respect to the axial direction while being fixed at a predetermined insertion position in the body.

  At this time, in the endoscope holder 1, the columnar members 6a and 6b are inserted through the holes 11 provided in the first and second gripping members 7a and 7b. Therefore, as shown in FIG. 6 as an example of the second gripping member 7b, the columnar members 6a and 6b are also used as the first and second gripping members even when the first and second gripping members 7a and 7b are swung. Interference with 7a and 7b can be avoided, and the first and second gripping members 7a and 7b can be smoothly swung.

  In this embodiment, the endoscope holder 1 is fixed and connected to the mouthpiece P. However, the endoscope holder 1 is not limited as long as it can be fixed to other instruments and the like. It is not necessary to connect to.

  For example, as shown in FIG. 7, the endoscope holder 1 may include an arm 23 that supports the holder body 3. In this case, the holder main body 3 may be integrally fixed to the distal end portion of the arm 23 as shown in FIG. 8, or may be detachably attached to the distal end portion of the arm 23 as shown in FIG.

  As a means for detachably attaching the holder body 3 to the distal end portion of the arm 23, for example, a clamp 25 that applies a clamping force by a torsion spring 24 can be used as shown in FIG. As the arm 23, various types of arms that can reliably hold the holder main body 3 supporting the endoscope at an arbitrary position and posture can be used.

  FIG. 7 shows a state in which the endoscope holder 1 is used for the large intestine endoscope 26. In this case, the base end portion of the arm 23 that supports the holder main body 3 is fixed by the arm fixing means 28 to the bed 27 on which the patient H lies.

  As shown in FIG. 10, when the bed 27 is a bed 29 with rails, as the arm fixing means 28, for example, a clamp 31 that fixes the base end portion of the arm 23 to the rail portion 30 of the bed 29 with rails is used. it can. The clamp 31 includes a fixed portion 32 to which the base end portion of the arm 23 is fixed, a butterfly screw 33 whose distal end is screwed to the fixed portion 32, and a movable portion 34 that is tightened in the clamp direction by the butterfly screw 33.

  The clamp 31 is fixed to the rail portion 30 by arranging the movable portion 34 on the upper side of the rail portion 30 and the fixing portion 32 on the lower side, and tightening them from above with a thumbscrew 33.

  When the bed 27 has the bed frame 35, as the arm fixing means 28, for example, a C-type clamp 36 to which the base end portion of the arm 23 is fixed as shown in FIGS. 12 and 13 can be used. The C-type clamp 36 is fixed to the bed frame 35 by tightening with a thumbscrew 37 from below.

  The arm fixing means 28 is not limited to fixing the arm 23 to the rail portion 30 or the bed frame 35 of the bed 29 with the rail as described above, but to fix the arm 23 to other fixing members such as a table or a desk. There may be.

  DESCRIPTION OF SYMBOLS 1 ... Endoscope holder, 2 ... Insertion hole, 3 ... Holder main body, 4 ... Fixing member, 6a, 6b ... Columnar member, 7a ... 1st holding member, 7b ... 2nd holding member, 10 ... Roller, 11 ... Hole, 12a, 12b ... Spring (first elastic member), 13 ... Pressing member, 14 ... Spring (third elastic member), 15 ... Spring (second elastic member), 17 ... Lever (switching mechanism) ), 21 ... Deaeration prevention valve, 22 ... Annular member, 23 ... Arm, 24 ... Torsion spring, 25 ... Clamp, 26 ... Colonoscope, 27 ... Bed, 28 ... Arm fixing means, 29 ... With rail Bed 30: Rail part 31 ... Clamp 32 ... Fixed part 33, 37 ... Thumb screw 34 ... Movable part 35 ... Bed frame 36 ... C type clamp

Claims (10)

An endoscope holder for fixing and holding an endoscope inserted into a body at a predetermined insertion position,
A hollow cylindrical holder body having an insertion hole through which an endoscope is inserted;
A first and a second gripping member made of a plate-like body extending in the length direction of the insertion hole, abutting on the endoscope inserted through the insertion hole and sandwiching the endoscope;
A first elastic member disposed between the first and second gripping members and biasing the first and second gripping members in a direction away from each other;
A pressing member that presses the first gripping member in the direction of the second gripping member against the biasing force of the first elastic member;
A switching mechanism for holding or releasing the pressing state by the pressing member;
A roller that is rotatably provided along the length direction of the insertion hole on the surface of the first and second gripping members that contacts the endoscope;
A second elastic member disposed between the second gripping member and the inner wall of the insertion hole and supporting the second gripping member so as to be swingable with respect to the length direction of the insertion hole; An endoscope holder characterized by that.   The endoscope holder according to claim 1, wherein the endoscope holder is disposed between the first gripping member and the pressing member and is swingably supported with respect to the length direction of the insertion hole. An endoscope holder comprising a third elastic member.   3. The endoscope holder according to claim 1, wherein the second elastic member is disposed at least at two locations along a length direction of the insertion hole. 4.   The endoscope holder according to any one of claims 1 to 3, further comprising a regulating member that regulates the first and second gripping members from approaching each other on the inner wall surface of the insertion hole. Endoscope holder characterized by   5. The endoscope holder according to claim 1, further comprising: a columnar member provided at least one oppositely in the insertion hole with a central axis of the insertion hole interposed therebetween. The endoscope holder according to claim 2, wherein the gripping member 2 includes a hole portion through which the columnar member is inserted, and the hole portion includes a gap at least in the length direction of the insertion hole with respect to the columnar member.   The endoscope holder according to any one of claims 1 to 5, further comprising a fixing member that is provided on an outer peripheral surface of a tip of the holder body and detachably fixes the holder body to the mouthpiece. Endoscope holder.   The endoscope holder according to any one of claims 1 to 5, further comprising an arm that supports the holder body at an arbitrary position and posture, and the holder body is integrally fixed to a distal end portion of the arm. Or an endoscope holder that is detachably attached to the distal end portion.   8. The endoscope holder according to claim 7, further comprising arm fixing means for detachably fixing a base end portion of the arm to a frame or rail portion of the bed or another fixing member. .   The endoscope holder according to claim 7 or 8, wherein the endoscope is a large intestine endoscope.   The endoscope holder according to any one of claims 1 to 9, further comprising a deaeration prevention valve that seals a gap between the endoscope inserted into the insertion hole and the inner wall of the insertion hole. Endoscope holder featuring.