JPH01160545A - Ultrasonic suction apparatus - Google Patents

Abstract

PURPOSE:To prevent and remove the clogging of the hollow passage of a vibration transmitting member, by mounting a long fine diameter member generating ultrasonic vibration in the direction of the hollow passage as the suction passage of a vibration transmitting member for transmitting ultrasonic vibration. CONSTITUTION:The leading end part of the vibration transmitting member 8 inserted in a sheath 2 is inserted in the body cavity to be brought into contact with a hematoma for example. At this time, a cock 12 is opened and a perfusion solution is supplied in the sheath 2 to be discharged from the leading end part of the sheath 2 and, at the same time, oscillation output is applied to a piezoelectric vibrator 9 by operating the oscillator provided in a drive circuit to generate an ultrasonic wave. A wire like member 10 is vibrated by said ultrasonic wave and this vibration is increased by a horn 7 to he transmitted to the vibration transmitting member 8. The hematoma is ground by the vibration transmitting member 8 and emulsified by the perfusion solution but further ground and emulsified by the wire like member receiving vibration provided in order to prevent the generation of the coagulation of blood in a hollow passage 3 to be collected in a drainage collecting bin through a tube 5. By this action, the clogging in the hollow passage 3 of the vibration preventing member 8 can be prevented and removed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improved ultrasonic suction device capable of preventing and removing clogging of a vibration transmission member having a suction path.

[Problems to be solved by conventional techniques and inventions] In recent years,
In the medical and industrial fields, it is possible to diagnose an affected area in a body cavity into which the elongated insertion section has been inserted from the eyepiece section on the hand side through observation optics and illumination optics provided in the elongated insertion section. BACKGROUND ART Endoscopes, which can be used to perform various procedures such as examinations, insertion of surgical instruments, have become widely used.

By the way, various ultrasonic aspiration devices have been proposed that use ultrasound to crush objects such as hematomas and tumors that have occurred within body cavities, and then suction the crushed objects to remove them outside the body cavity. is the specification of Japanese Patent Application No. 62-46980 and Japanese Patent Application No. 1983.
No. 2-46981 proposes an ultrasonic suction device that can control the operation of an ultrasonic transducer.

This type of ultrasonic suction device uses a probe with an ultrasonic vibrator on the base side and a hollow passage as a suction path as an ultrasonic vibration transmission member, and the tip of this vibration transmission member is brought into contact with an object in the body cavity. When the object is crushed, the crushed object is discharged to the outside through a suction path which is a hollow path within the vibration transmission member.

An example of where this ultrasonic suction device is used is surgery to remove cerebrovascular disorders, and typical examples of cerebrovascular disorders include cerebral hemorrhage and subarachnoid hemorrhage. Stereotactic brain surgery is performed to remove intracerebral hematomas and the like after these intracerebral hemorrhages.

Stereotactic neurosurgery involves fixing a stereotactic neurosurgery device to the patient's head, positioning it to the affected area in the brain using a positioning device installed in the device, and using an ultrasonic suction device via a drainage tube etc. A vibration transmission member is inserted into the damaged site, and the vibration transmission member in contact with the hematoma is vibrated by ultrasonic waves to crush the hematoma and remove it by suction through a hollow passage provided within the vibration transmission member.

However, blood or the like may adhere to the inside of the hollow passage of the vibration transmission member and harden due to heat generation, thereby clogging the hollow passage. Due to this blockage, not only can suction not be continued, but if vibration continues to be applied, the vibration transmission member cannot be cooled by suction, causing heat damage to the living body due to the heat generated by the vibration transmission member, damage to the vibrator, and damage to the vibration transmission member. There is a risk of causing breakage.

The present invention has been made in view of these circumstances, and prevents and eliminates clogging of the hollow passage of a vibration transmission member having a suction passage, and prevents heat damage to living bodies due to heat generation of the vibration transmission member, vibrator, and vibration transmission. It is an object of the present invention to provide a highly safe ultrasonic suction device that can prevent damage to members.

[Means and effects for solving the problems] The ultrasonic suction device of the present invention has a long thin strip that vibrates ultrasonically in the axial direction of a hollow passage serving as a suction passage of a vibration transmission member that transmits ultrasonic vibrations. It is equipped with a diameter member.

That is, by applying vibration to this small diameter member, it is possible to prevent the coagulation of aspirated blood and the coagulation of crushed hematoma pieces, and even if the blood coagulates, the clot is crushed to prevent and remove clogging of the hollow passage. do.

[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic sectional view of an ultrasonic suction device according to a first embodiment of the present invention.

In FIG. 1, an ultrasonic suction device 1 includes a horn 7 and a piezoelectric vibrator 9 connected to the base of a vibration transmission member 8 that transmits ultrasonic vibrations and uses a hollow passage 3 as a suction passage. A suction passage is formed in communication with the suction passage, and a suction mouthpiece 6 is provided projecting in the upstream and vertical directions of the suction passage, and a tube 5 connected to a suction device (not shown) is connected to this mouthpiece 6.

Furthermore, a wire-like member 10 having a long and small diameter is vertically mounted on the piezoelectric vibrator 9 so as to be located coaxially with the central axis of the hollow passage 3 of the vibration transmission member 8, and is provided in a drive circuit (not shown). The piezoelectric vibrator 9, to which an output signal oscillated by an oscillator is applied, is caused to vibrate by the generated ultrasonic waves. In addition, the vibration is increased by the horn 7, and the vibration transmission member 8
It is designed to vibrate. The ultrasonic suction device 1 is used by being inserted and assembled into a sheath 2, as shown in FIG. 1, for example, and the base of the sheath 2 is sealed with a plug member 4. In the figure, reference numeral 11 is a base of the sheath, and 12 is a cock.

By the way, the operation of the ultrasonic suction device 1 configured as described above will be explained.

The distal end of the vibration transmission member 8 inserted into the sheath 2 is inserted into the body cavity and brought into contact with, for example, a hematoma.

At this time, the cock 12 is opened, and the irrigation fluid is supplied into the sheath 2 and released from the tip of the sheath 2. At the same time, an oscillator provided in a drive circuit (not shown) is activated to apply an oscillation output to the piezoelectric vibrator 9. and generate ultrasonic waves. This ultrasonic wave vibrates the wire-like member 10, increases the vibration by the horn 7, and is transmitted to the vibration transmission member 8.

The hematoma is crushed by the vibration transmitting member 8 and floated by the above-mentioned perfusion fluid, but the hematoma is crushed by the vibration-applied wire member provided in the hollow channel 3 to prevent blood from coagulating. It is roughly crushed and emulsified, passed through a tube 5, and collected in a waste liquid collection bottle (not shown). This action can prevent and eliminate clogging in the hollow passage 3 of the vibration transmission member 8.

FIGS. 2 to 4 relate to a second embodiment of the present invention.
The figure is a sectional view when a flexible endoscope is inserted into the main body of the ultrasonic suction device. FIG. 3 is an explanatory view showing a state in which the suction path is blocked by a hematoma or the like, and FIG. 4 is an explanatory view when the blockage is removed using an endoscope.

In FIG. 2, a horn 7 is connected to the rear end of a vibration transmission member 8 in the form of a vibrator, a piezoelectric vibrator 9 is connected to the rear end of the horn 7, and from the horn 7 to the rear end of the piezoelectric vibrator 9. A hollow portion communicating with the hollow portion of the vibration transmission member 8 is provided. Furthermore, an insertion port 1 for an endoscope 14 is provided at the rear end of the piezoelectric vibrator 9.
5 and a Y-shaped tube 16 provided with a suction path outlet.

The endoscope 14 is inserted through the insertion port 15 in a state where it can move back and forth in the axial direction, and the insertion port is sealed with a rubber stopper 13.

By the way, the operation of the ultra 8-wave suction device configured as described above will be explained.

The hematoma fragments crushed by the vibration transmitting member 8 are sucked through the hollow passage 3, but if the clotted hematoma forms a blockage 18 as shown in FIG. As shown in FIG. 4, by moving the endoscope 14 back and forth in the axial direction, the hematoma etc. that have condensed on the inner surface of the vibration transmission member 8 and the outer surface of the inserted endoscope ti14 are peeled off and crushed. The blockage 18 can be removed to ensure a suction path.

5 and 6 relate to the third embodiment of the present invention, FIG. 5 is a sectional view when the rigid endoscope is inserted into the main body of the ultrasonic suction device, and FIG. FIG. 3 is a cross-sectional view of the distal end portion of the ultrasonic suction device main body when the vibration transmitting member portion is inserted through the sheath.

In FIG. 5, the configuration up to the piezoelectric vibrator 9 is the same as that of the second embodiment, and a tube 17 is connected to the rear end of the piezoelectric vibrator 9.
The tubes 17 are arranged in series so that the insertion port 15 of the endoscope 14 is coaxial with the vibration transmission member 8.

This action is similar to the second embodiment.

[Effects of the Invention] As described above, according to the present invention, by preventing and removing clogging of the hollow passage of the vibration transmission member, damage to the vibration transmission member can be prevented and safety can be improved.

[Brief explanation of the drawing]

FIG. 1 relates to a first embodiment of the present invention, and is a schematic sectional view of an ultrasonic suction device, and FIGS. 2 to 4 relate to a second embodiment of the present invention, and FIG. 2 is a main body of the ultrasonic suction device. A cross-sectional view when a flexible endoscope is inserted into the body, Figure 3 is an explanatory diagram showing a state in which the suction path is blocked by a hematoma, etc., and Figure 4 is an explanation of when the blockage is removed using an endoscope. 5 and 6 relate to the third embodiment of the present invention, FIG. 5 is a sectional view when the rigid endoscope is inserted into the main body of the ultrasonic suction device, and FIG. FIG. 3 is a cross-sectional view of the distal end portion of the ultrasonic suction device main body shown in FIG. 1... Ultrasonic suction device 2... Sheath 3... Hollow path 4... Plug member 5... Tube
6...Case 7...Bone 8...
・Vibration transmission member 9...Piezoelectric vibrator 10...
Wire-like member Figure 1 12 7 Figure 5 1

Claims (1)

[Claims] An ultrasonic piezoelectric vibrator is provided on the base side to transmit ultrasonic vibrations to crush the treated area, and a vibration transmitting member with a hollow passage as a suction passage; 1. An ultrasonic suction device comprising: an elongated, narrow-diameter member that vibrates ultrasonically to prevent clogging of the hollow passage.