JP2019047946A - Surgical microscope apparatus - Google Patents

Abstract

To provide a surgical microscope apparatus in which inspired air reaches a midway part of an upper arm and a drape come into tight contact with the upper arm.SOLUTION: A half pipe member 19 is attached from the vicinity of a tip end of an upper arm 4 to a midway part, so that inspired air from a suction hole 12 formed on a tip side of the upper arm 4 can be made to reach a midway part of the upper arm 4 through the half pipe member 19, and a drape P does not hang down even at the midway part of the upper arm 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a surgical microscope apparatus used by being covered with a drape.

  A surgical microscope used in neurosurgery and the like supports a parallel link mechanism extending in the vertical direction on a stand body installed on a floor, and is suspended from the upper end of the upper arm extending in the horizontal direction from the upper end of the parallel link mechanism. Lower and support.

  At least the surgical microscope and the upper arm that supports it are covered with drape to make it sterile. The upper arm has a hollow structure and an air inlet is formed at the tip of the upper arm. Air inside the drape is sucked from the tip, and the drape is brought into close contact with the surgical microscope and the vicinity of the tip of the upper arm. This prevents the drape from hanging down and obstructing the visual field of the doctor or assistant (see, for example, Patent Document 1).

JP, 2006-202598, A

  However, in such a conventional technique, since the air in the drape is sucked from the air inlet formed at the tip of the upper arm, the surgical microscope supported by the tip of the upper arm or the upper arm The drape is in close contact with the vicinity of the tip, but the drape in the middle part of the upper arm far from the tip does not reach the intake due to the drape in close contact with the vicinity of the top of the upper arm. There is a risk of drooping.

  The present invention has been made paying attention to such a conventional technique, and an object of the present invention is to provide a surgical microscope apparatus in which a drape is brought into close contact with intake air in the middle of an upper arm.

  According to the first technical aspect of the present invention, the stand body installed on the floor includes two parallel front arms and rear arms, two parallel upper arms and lower arms, A parallel link mechanism in which the connecting portion of the arm is rotatably supported is attached to be rotatable about a rotation axis set in the middle of the front arm, and the upper side of the parallel link mechanism is formed by a part of the upper arm. The distal end portion extending forward beyond the parallel link mechanism of the upper arm supports the surgical microscope, and the lower side of the parallel link mechanism is formed by a part of the lower arm and extends beyond the parallel link mechanism of the lower arm. The rear end extended rearward supports a counterweight, and the upper arm has a hollow structure to form an intake port on the distal end side of the upper arm, and air in the upper arm is drawn from the upper arm proximal end side to the upper arm. It can be discharged to places other than A surgical microscope apparatus in which at least a surgical microscope and an upper arm are covered with a drape. An air passage is formed between the upper arm and the surface of the upper arm.

  According to the second technical aspect of the present invention, the rear arm has a hollow structure, and the lower end of the rear arm extends downward beyond the connecting portion with the lower arm and has a cylindrical extension that is open at the lower end. The exhaust pump is housed in the interior, and the range from the extension part to the intake port through the rear arm and the upper arm can be ventilated.

  According to the first technical aspect of the present invention, since the half pipe member is attached from the vicinity of the tip of the upper arm to the middle portion thereof, an air passage is formed between the half pipe member and the surface of the upper arm, The intake air from the intake port formed on the front end side of the upper arm can be exerted on the middle portion of the upper arm through this air passage. Accordingly, the drape does not hang down even in the middle of the upper arm.

  According to the second technical aspect of the present invention, since the exhaust pump is housed in the extension further below the lower end of the rear arm, the distance from the surgical microscope supported at the tip of the upper arm is increased, and the operation is performed. The doctor observing the microscope does not mind the noise of the exhaust pump.

The perspective view which shows a surgical microscope apparatus. The side view which shows a surgical microscope apparatus. The perspective view which shows the front-end | tip vicinity of an upper arm. Sectional drawing which follows the SA-SA line shown by the arrow in FIG. Sectional drawing which follows the arrow SB-SB line in FIG. Sectional drawing which follows the SC-SC line shown by the arrow in FIG. Explanatory drawing which shows the flow of the air in an upper arm.

  A preferred embodiment of the present invention will be described with reference to FIGS. Above and below, the front-rear and left-right directions are as shown in FIG.

  The stand main body 1 installed on the floor in the operating room has a parallel link mechanism A having a structure in which a front arm 2 and a rear arm 3, and an upper arm 4 and a lower arm 5 are pivotally supported. It is supported. The parallel link mechanism A is supported by the stand body 1 on a rotating shaft 6 set in the middle of the front arm 2.

  The upper side of the parallel link mechanism A is formed by a part of the upper arm 4, and the upper arm 4 extends forward as it is. A surgical microscope 8 is supported at the tip of the upper arm 4 via a suspension arm 7.

  The lower side of the parallel link mechanism A is formed by a part of the lower arm 5, and the lower arm 5 extends rearward as it is. A counterweight 9 is provided at the rear end of the lower arm 5.

  By deforming such a parallel link mechanism A, the surgical microscope 8 can be moved back and forth and up and down, and the surgical microscope 8 stops in the air at the point of movement due to the weight balance by the counterweight 9.

  The upper arm 4 is formed of a metal cylinder and is curved upward as a whole. The reason for bending upward is to secure a lower working space. Both ends of the upper arm 4 are formed by a cast tip portion 10 and a base end portion 11. The upper arm 4 has a hollow structure as a whole, including the distal end portion 10 and the proximal end portion 11 as a structure. An intake port 12 is formed at the distal end portion 10 of the upper arm 4.

  The rear arm 3 also has a cylindrical hollow structure extending up and down, and the connecting portion 13 between the upper end of the rear arm 3 and the base end portion 11 which is the rear end of the upper arm 4 is an air vent as shown in FIG. 14 is formed. Accordingly, the connecting portion 13 is rotatable, but the inner space of the rear arm 3 and the upper arm 4 (base end portion 11) is in communication with each other through the vent hole 14.

  A lower portion of the rear arm 3 is connected to a surface on the inner side (stand body 1 side) of the lower arm 5. Accordingly, the connecting portion 15 between the lower portion of the rear arm 3 and the lower arm 5 is located in the space S between the lower arm 5 and the stand body 1.

  An extension 16 is formed at the lower end of the rear arm 3 so as to extend downward beyond the connecting portion 15. The extension portion 16 has a cylindrical shape with a diameter larger than that of the rear arm 3 and opened at the lower side, and an exhaust pump 17 is accommodated therein. The switch operation of the exhaust pump 17 is performed by a control panel (not shown).

  The connecting portion 15 rotates integrally with the rear arm 3, and the connecting portion 15 is formed with a communication path 18 that allows the inside of the rear arm 3 and the extension portion 21 to communicate with each other. Accordingly, the entire range from the extension portion 16 to the intake port 12 via the rear arm 3 and the upper arm 4 can be ventilated.

  On the other hand, a half pipe member 19 having a semicircular cross section is attached to the upper surface of the upper arm 4 by a band 20 from the vicinity of the tip to the middle portion. Therefore, a ventilation path 21 is formed between the half pipe member 19 and the surface of the upper arm 4.

  As shown in FIG. 2, the stand main body 1 is covered with a drape P for making a necessary part including the upper arm 4 from the surgical microscope 8 into a sterile state. In particular, when the portion of the drape P that covers the upper arm 4 or the surgical microscope 8 hangs down, the visual field of the doctor, assistant, or the like is obstructed.

  Therefore, the air E in the drape P is sucked from the intake port 12 at the tip using the upper arm 4 and the rear arm 3 as a passage. The suction is performed by an exhaust pump 17 provided in the extension 16 at the lower end of the rear arm 3. When the exhaust pump 17 is operated, the inside of the rear arm 3 is depressurized, the inside of the upper arm 4 is depressurized, the air E in the drape P is sucked from the intake port 12 at the tip, and the sucked air E is It is discharged from the lower end to the outside of the drape P.

  Since air E is sucked from the air inlet 12 at the tip of the upper arm 4, the drape P near the surgical microscope 8 and near the tip of the upper arm 4 is reliably sucked and brought into a close contact state, disturbing the visual field of a person in the vicinity. do not do. Further, as shown in FIG. 7, not only the air E around the surgical microscope 8 and the vicinity of the tip of the upper arm 4 from the air inlet 12 but also through an air passage 21 formed between the half pipe member 19 and the upper arm 4. Since the air 4 in the middle of the upper arm 4 can also be sucked, the drape P does not hang down in the middle of the upper arm 4.

  Further, since the exhaust pump 17 is housed in the extension 16 positioned further below the lower end of the rear arm 3, the distance from the surgical microscope 8 supported by the tip of the upper arm 4 is increased, and the surgical microscope is increased. The doctor observing 8 does not mind the noise of the exhaust pump 17.

  Moreover, since the extension part 16 incorporating the exhaust pump 17 is located between the lower arm 5 and the stand body 1, the presence of the extension part 16 is not noticeable.

DESCRIPTION OF SYMBOLS 1 Stand main body 4 Upper arm 5 Lower arm 8 Surgical microscope 10 Tip part 11 Base end part 12 Inlet 17 Exhaust pump 19 Half pipe member 21 Ventilation path A Parallel link mechanism E Air P Drape S Space

Claims (2)

The stand body installed on the floor includes two parallel forearms and rear arms, and two parallel upper and lower arms. A link mechanism is attached so as to be rotatable around a rotation axis set in the middle of the forearm,
The upper side of the parallel link mechanism is formed by a part of the upper arm, and the surgical microscope is supported at the tip portion that extends forward beyond the parallel link mechanism of the upper arm,
The lower side of the parallel link mechanism is formed by a part of the lower arm, and supports the counterweight on the rear end portion that extends backward beyond the parallel link mechanism of the lower arm,
The upper arm has a hollow structure and an air inlet is formed on the distal end side of the upper arm, and the air in the upper arm can be discharged from the base end side of the upper arm to a place other than the upper arm.
A surgical microscope apparatus in which at least a surgical microscope and an upper arm are covered with a drape;
A surgical operation characterized in that a half-pipe member is attached by a band along the longitudinal direction from the vicinity of the tip to the middle in the longitudinal direction of the upper arm, and a ventilation path is formed between the half-pipe member and the surface of the upper arm. Microscope device.   The rear arm has a hollow structure, and the lower end of the rear arm extends downward beyond the connecting portion with the lower arm and forms a cylindrical extension with the lower end open to house the exhaust pump. The surgical microscope apparatus according to claim 1, wherein a structure is provided in which a range from the first through the rear arm and the upper arm to the intake port can be ventilated.

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