JPH0724081Y2 - Endoscope support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an endoscope supporting device for supporting an endoscope such as a laparoscope in a desired state.

[Prior Art] Among endoscopes, for example, a laparoscope (laparoscope) has a trocar T inserted into its abdomen with a patient P lying on an operating table B as shown in FIG. The trocar T is used as a guide to insert the insertion portion of the laparoscope S into a site to be treated, and the treatment is performed. The laparoscope S is inserted into the body and is positioned at that position. An endoscope support device H is used for fixing. The endoscope support device H is attached to a rail L provided on the side surface of the operating table B, and the laparoscope S can be detachably attached to the tip of the rail L, and it has an optimum position and posture. So that it can be adjusted freely and easily.

Therefore, an endoscope supporting device according to the prior art is shown in FIGS. 6 and 7.

In the figure, 1 denotes an arm for supporting an endoscope, 2 denotes a support mechanism portion for connecting and fixing the arm 1 to a rail 3 fixedly mounted on an operating table, and the support mechanism portion 2 has a substantially cross section. It has a mounting member 4 formed in a U shape, and the mounting member 4 is mounted so as to straddle the rail 3. The mounting member 4 is provided with pin insertion holes 4a, 4a, and the pins 6, 6 provided on the fixing member 5 are inserted into the pin insertion holes 4a, 4a. A tooth portion 5a is formed on the surface of the fixing member 5 opposite to the side on which the pin 6 is provided. The tooth portion 5a is formed by radially forming teeth from the center position thereof, and an arm insertion hole for inserting the arm 1 into the tooth portion 5a.
It is adapted to mesh with the tooth portion 7b provided on the support member 7 having the 7a.

A connecting member 8 is used to connect the mounting member 4, the fixing member 5 and the supporting member 7 to each other to fix the rail 3 and the arm 1 inserted through the supporting member 7. The connecting member 8 includes a fixing member 5 and a supporting member 7.
The tooth portions 5a and 7b are engaged with each other, the fixing member 5 is joined to the mounting member 4, and the pin 4 provided on the fixing member 5 is pressed against the surface of the rail 3.
For this reason, the connecting member 8 has a planar main body 8a and an engaging portion 8b that is connected to the tip of the main body 8a, and the main body 8a has a long hole 8c through which the arm 1 passes. Has been formed. Further, the main body portion 8a is provided with a screw hole 8d connected to the elongated hole 8c at a position opposite to the connecting portion with the engaging portion 8b, and the screw shaft 9 is screwed into the screw hole 8d. Has been inserted.

On the other hand, the mounting member 4 has an opening 2b of a size that allows the main body portion 8a of the connecting member 8 to pass through but the engagement portion 8b cannot pass through.
The fixing member 5 is formed with an insertion hole 5b into which the main body 8a can be inserted. Further, the support member 7 is formed with a through hole 7c having a diameter larger than the width of the main body portion 8a.

Therefore, by inserting the connecting member 8 into the opening 2b of the mounting member 4 and inserting the fixing member 5 and the supporting member 7 into the connecting member 8, the supporting mechanism portion 2 in the endoscope supporting device is assembled, The mounting member 4 is engaged with the rail 3 and the arm 1 is attached to the arm insertion hole 7a of the support member 7.
To insert. At this time, the arm 1 is inserted into the elongated hole 8c provided in the main body portion 8a of the connecting member 8. Then, by screwing the screw shaft 9 so as to drive it into the elongated hole 8c, the tip end of the screw shaft 9 abuts on the arm 1 inserted in the elongated hole 8c, whereby the arm 1 is supported. Is pressed against the side of the fixing member 5, the pin 4 attached to the fixing member 5 is pressed against the surface of the rail 3, and the engaging portion 8b of the connecting member 8 is pressed against the inner surface of the mounting member 4. Thus, the arm 1 supporting the endoscope can be fixed.

Thus, in order to adjust the position of the arm 1, the support mechanism 2
The arm 1 can be arranged at a desired position by sliding the mounting member 4 constituting the arm 3 along the rail 3. The arm 1 can be tilted by engaging the support member 7 at a position where the angle with respect to the fixed member 5 is changed.

[Problems to be Solved by the Invention] Then, in the above-mentioned conventional endoscope support member,
In order to move the support mechanism section 2 and adjust the position of the arm 1, the screw shaft 9 in the tightened state is loosened to release the pressure contact force of the pin 4 with respect to the rail 3, and the mounting member 4 is moved along the rail 3. Slide it. When the angle of the arm 1 is changed, the engagement state between the support member 7 and the fixed member 5 can be released and the support member 7 can be rotated by a predetermined angle. Therefore, both when the support mechanism portion 2 is moved along the rail 3 and when the angle of the arm 1 is changed, it is performed by loosening the screw shaft 9. Therefore, when the screw shaft 9 is loosened, the support is performed. The mechanical section 2 is in a movable state, and the arm 1 is in a variable state. Therefore, it is extremely difficult to move only the support mechanism 2 along the rail 3 with the arm 1 fixed, or to change the angle of the arm 1 with the support mechanism 2 itself fixed. There are drawbacks. In particular, the endoscope is a device used for medical purposes, and the endoscope support device that supports it must hold the endoscope as stable as possible. To
It must be held securely so that the whole does not become unstable.

The present invention has been made in view of the above points. With a simple configuration, the operation of moving the entire device supporting device along the rail and the operation of changing the angle of the arm supporting the device are independently performed. Its purpose is to be able to do it.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention is capable of attaching and detaching an endoscope to a rail provided along an operating table and to a support mechanism portion that can be fixed at a desired position. In order to fix the arm attached to the armature at a desired angle, this support mechanism part has a rail connecting part and an arm connecting part, and the rail connecting part has a fixed side for holding the rail on the base member. And a movable-side holding member, a lever that pushes the movable-side holding member in a direction in which the movable-side holding member is pressed against the rail, and one end of which is connected to the lever, and by engaging the engaging member connected to the base member,
The arm connecting portion has a pivotal attachment portion for rotatably supporting the arm on the base member and a pivotal attachment position of the arm. The arm is provided with a plurality of pin holes bored on an arcuate locus, and the arm is provided with a pin which can be engaged with and disengaged from a pin hole at an arbitrary position of each of the pin holes. It is characterized in that it is configured so as to be biased in the direction of engaging with the hole.

[Operation] By adopting such a configuration, the ratchet mechanism is operated so that the rail connecting portion in the support mechanism section is not fixed to the rail, so that the entire support mechanism section is moved along the rail. It can be fixed at the position by moving it, arranging it at an appropriate position, and activating the lever. Then, at this time, the arm is held in a state of maintaining a predetermined angular relationship with the support mechanism portion by an arm connecting portion which is different from the rail connecting portion. Also, if the pin attached to the arm is removed from the pin hole, the arm can be rotated around its pivotal portion, and when the desired angle is reached, the pin is inserted into the pin hole at that position. The arm can be fixed at the angular position by engaging with.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.

First, FIG. 1 and FIG. 2 show the entire configuration of the endoscope support device.

In the figure, 10 is an arm, 20 is a support mechanism, respectively, and the arm 10 is provided with a vertical rod 10a and a horizontal rod 10b formed by bending the tip of the vertical rod 10a. The endoscope mounting portion 11 to which the endoscope S is detachably mounted is a horizontal rod portion 10.
It is provided in b. The vertical rod portion 10a has a telescopic shape so that the height position of the endoscope mounting portion 11 can be adjusted.

On the other hand, the support mechanism portion 20 has a base disc 21 as is clear from FIGS. 3 and 4, and the base disc 21 has:
A side contact plate 22a that can contact the fixed plate 22 and the pressing plate 23 as a fixed-side and movable-side holding member that constitutes a rail connecting portion for holding the rail 40 fixed to the operating table, The upper contact plate 22b that contacts the upper surface of the rail 40 and the base disk 21
And a connecting portion 22c fixed to the. On the other hand, the pressing plate 23 is brought into contact with the surface side of the rail 40, and the rubber plate 23a is attached to the surface of the pressing plate 23. A shaft rod 24 is continuously provided on the back surface side of the pressing plate 23, and the shaft rod 24 is a shaft rod insertion hole provided in the base disk 21.
A flange portion 24a is formed at the tip end portion thereof extending through the shaft 25, and between the flange portion 24a and the base disk 21, a spring for urging the pressing plate 23 in a direction separating from the rail 40. Twenty-six are armed.

A lever 27 is mounted on the base disk 21 in order to press the pressing plate 23 against the biasing force of the spring 26 against the rail 40.
The rail 27 is rotatable about a shaft 27a in a direction of moving closer to and away from the base disk 21, and the lever 27 is provided with a pushing surface 27b for pushing the flange portion 24a of the shaft rod 24. There is. Therefore, when the lever 27 is rotated in the direction shown by the arrow A in FIG. 3, its pushing surface 27b is moved as shown by the solid line.
Pushes the rod 24 in the direction against the spring 26, the rubber plate 23a of the pushing plate 23 is pressed against the rail 40, and the pushing plate 23
Hold the rail 40 between the fixing plate 22 and the
Is in a connected state where it is connected and fixed to the rail 40. on the other hand,
When the lever 27 is rotated in the direction of arrow B in FIG. 3, the pushing surface 27b is separated from the flange portion 24a of the shaft rod 24, as shown by the phantom line in FIG. Rod 24 spring 26
Is displaced in the direction of arrow C in FIG.
23 is separated from the rail 40 to be in the connection release state in which the holding of the rail 40 is released.

Further, a ratchet mechanism is used to hold the pushing plate 23 in pressure contact with the rail 40. That is, lever 27
One end of a lock plate 28 is pivotally attached to the lock plate 28, and the lock plate 28 is inserted into a through hole 29a of an engaging plate 29 that is continuously provided on the lower end portion of the base disk 21. The lock plate 28 is provided with a plurality of ratchet teeth 28a, and when the lever 27 is rotated so as to be in a connected state, the ratchet teeth 28a engage with the edge portion of the through hole 29a of the engaging plate 29. You will be punished. Further, in order to hold the lock plate 28 so as not to slip out from the through hole 29a of the engaging plate 29 when the lever 27 is brought into the uncoupled state, the lock plate 28 is held.
A bent portion 28b is provided at the tip of 28.

Next, the structure of the arm connecting portion will be described. The end of the vertical rod portion 10a of the arm 10 described above is attached to the base disc 21 of the support mechanism portion 20 by the rotating shaft 12 so that the base disc 21
Are rotatably connected in a direction along the plate surface of the. Then, in order to fix the arm 10 in a desired angle state, the rotation axis 12 is fixed to the base disk 21 as shown in FIG.
A large number of pin holes 30 are formed on an arcuate locus centered on the mounting portion of the. On the other hand, the vertical rod portion 10a of the arm 10 is provided with a pin 231 that can be inserted into and removed from each of these pin holes 30, and the pin 31 is urged by a spring 32 in the direction in which its tip is inserted into the pin hole 30. Has been done. Then, in order to smoothly insert the pin 31 into the pin hole 30 and to prevent looseness in the inserted state, the tip 31a of the pin 31 is tapered, and the pin hole 30 is formed in the base member 21. The taper hole becomes narrower from the front side to the back side. further,
In order to smoothly perform the operation of pulling out the pin 31 from the pin hole 30, the head portion of the pin 31 has a knob portion 31b having an enlarged diameter.

The present embodiment is configured as described above, and like the case shown in FIG. 5, the endoscope S is inserted into the patient on the operating table with the insertion portion of the endoscope S inserted. In order to support it in the desired direction at the desired position,
A support mechanism portion 20 constituting an endoscope supporting device is provided on a rail indicated by reference numeral L in FIG. 5 and reference numeral 40 in FIG.
Attach.

Therefore, first set the lever 27 to the uncoupled state to fix the fixing plate 22.
The rail 40 is inserted between the pressing plate 23 and the
The upper surface of is contacted with the upper contact plate 22b of the fixed plate 22, and the support mechanism portion 20 is slid along the rail 40 and moved to a predetermined position. In this state, when the lever 27 is rotated to the arrow A side in FIG. 3, the rubber plate 23a of the pushing plate 23 is pressed against the side surface of the rail 40, and the pushing plate 23 and the fixed plate 22 are separated from each other. The rail 40 is clamped between them, and the support mechanism section 20 is fixed to the rail 40. The rotation of the lever 27 causes the lock plate 28 to enter the through hole 29a of the engaging plate 29, and the ratchet teeth 28a to engage with the edge portion of the through hole 29a. Even if the hand is released from, the lever 27 is held in a fixed state. In addition, when it is necessary to readjust the position of the support mechanism portion 20, if the tip portion of the lock plate 28 where the bent portion 28b is formed is lifted up, the ratchet pawl 28a and the edge portion of the through hole 29a are removed. The engagement between the two can be released, and the fixing plate 22 constituting the support mechanism section 20 can be moved along the rail 40.

On the other hand, when changing the angle of the arm 10 attached to the support mechanism portion 20, the pin 31 mounted on the vertical rod portion 10a of the arm 10 is provided on the base disk 21 against the biasing force of the spring 32. The vertical rod 10a by pulling it out from the pin hole 30
Tilt to the left or right around. Then, when the pulling force for the pin 31 is released when the arm 10 reaches a desired angle, the pin 31 is inserted into the pin hole 30 facing the position by the action of the spring 32. The resulting arm 10 is fixed in that angular position.

In this way, the position adjustment of the support mechanism section 20 performed by sliding the support mechanism section 20 along the rail 40, and the support mechanism section
Since the angle of the arm 10 attached to the armature 20 can be adjusted by rotating the lock plate 28 and the lever 27 and manually inserting and removing the pin 31, respectively, the arm 10 can be used as it is, for example. Position and move it horizontally, or hold the support mechanism 20 in a fixed state,
The operability of changing only the angle of the arm 10 is improved. Moreover, since these operations can be performed by a very simple operation with one touch, the operation of supporting the endoscope S mounted on the endoscope mounting portion 11 of the arm 10 in an optimal position is remarkably performed. It can be done quickly and easily.

[Effects of the Invention] As described above, the present invention provides the rail connecting portion for fixing the support mechanism portion to the rail and the arm connecting portion for connecting the arm supporting the endoscope. Is composed of a fixed-side and a movable-side holding member for holding the rail, so that the support mechanism can be attached to a desired position of the rail, and the arm connecting portion rotates the arm around the base member. The arm can be mounted at a desired angle by being configured by a pivotally supporting portion that is movably supported and a plurality of pin holes that are formed on an arcuate locus around the pivotally mounting position of the arm. Further, the position adjustment with respect to the rail by the rail connecting portion is performed by connecting the movable side holding member to the lever in a direction of press-contacting the rail and one end connected to this lever and connecting to the base member. The ratchet means for releasably fixing the lever by engaging with the engaging member, and the angle of the arm is adjusted by inserting a pin provided on the arm into a pin hole at an arbitrary position. Since it is configured to perform, the operation for moving the whole including the support mechanism portion along the attached portion and fixing it at the desired position is simple by the operation of rotating the lever and the ratchet means. Since the angle of the arm can be adjusted by inserting and removing the pin, the position and direction of the endoscope attached to the arm can be adjusted extremely easily and quickly, and Since the position adjustment and the direction adjustment of the endoscope can be performed independently of each other, such adjustment operation can be performed more reliably and finely, and when the adjustment is performed, the entire endoscope support device can be adjusted. Since there is no loss of stability, the effect that safe adjustment is possible even when performing position adjustment or direction adjustment with the insertion part of the endoscope inserted in the patient's body Play.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is an overall configuration diagram of an endoscope supporting device, FIG. 2 is a side view of FIG. 1, and FIG. FIG. 4 is a right side view of FIG. 3, FIG. 4 is an explanatory view showing a state in which treatment or the like is performed using a laparoscope, and FIGS. 6 and 7 are prior arts. Fig. 6 is a plan view of the support mechanism portion, and Fig. 7 is VI of Fig. 6.
FIG. 7 is a sectional view taken along line I-VII. 10: Arm, 10a: Vertical rod part, 10b: Horizontal rod part, 11: Endoscope device part, 12: Rotating shaft, 20: Support mechanism part, 21: Base disk, 22:
Fixed plate, 23: Pressing plate, 24: Shaft rod, 26: Spring, 27: Lever, 2
8: Lock plate, 29: Engagement plate, 30: Pin hole, 31: Pin, 3
2: Spring, 40: Rail.

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A rail provided along an operating table, a support mechanism portion that can be fixed at a desired position, and an arm to which an endoscope is detachably mounted, fixed at a desired angle. The support mechanism portion has a rail connecting portion and an arm connecting portion, and the rail connecting portion includes a fixed side and a movable side holding member for holding the rail on a base member, and a movable side holding member. A lever that pushes in the direction of pressure contact with
One end of the lever is connected to the base member, and the engaging member connected to the base member is engaged with the ratchet means to releasably fix the lever. A pivotally supporting portion for rotatably supporting the arm, and a plurality of pin holes formed on an arcuate locus centering on the pivotal mounting position of the arm,
Further, the arm is provided with a pin which can be engaged and disengaged with a pin hole at an arbitrary position of each of the pin holes, and the pin is biased by a biasing means in a direction of being engaged with the pin hole. A characteristic endoscope support device.