JP2002085417A - Ultrasonic treating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ultrasonic treating apparatus capable of obtaining a high treating efficiency by preventing clogging of a suction passage and atomizing of cooling water without thickening a sheath and without disturbing a visual field. SOLUTION: An ultrasonic operating apparatus comprises a hand piece 10 for generating an ultrasonic vibration, a probe 13 connected to the hand piece 10 to give the ultrasonic vibration to an organism, the sheath 12 covering the probe 13, a cooling water supply means 7 for supplying the cooling water 8 for cooling the probe 13, a suction means 9 for sucking an organism tissue, and an apparatus body 5 having a drive means 4 for controlling the drives of the supply means and the suction means. In this case, the drive means 4 regulates a set amount of the cooling water to be supplied by the supply means based on a set value of a suction pressure or suction flow rate of the suction means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an ultrasonic treatment apparatus for treating a living body by ultrasonic vibration.

[0002]

2. Description of the Related Art In a surgical operation, an ultrasonic treatment apparatus is generally used in which ultrasonic vibration is applied to a living tissue to perform crushing, emulsification, and suction, or coagulation and incision is performed by frictional heat caused by the ultrasonic vibration. Used in

In such an ultrasonic treatment apparatus, a metal rod-shaped member called a probe for transmitting ultrasonic vibration to a living body is used, and it is known that the probe generates heat due to the ultrasonic vibration. Therefore, in particular, in a so-called ultrasonic suction device that performs crushing, emulsification, suction, and the like by ultrasonic vibration, blood vessels and nerves,
Elastic tissue such as muscle tissue is hard to be crushed,
Bone, fat, tumor tissue, etc. are easily crushed, making incisions and excision of tumors while preserving blood vessels, nerves, and muscular tissues. Should not be given.
Therefore, it is common practice to cover the area other than the tip of the probe with a sheath, and to cool the probe by flowing cooling water between the probe and the sheath, and the cooling water is discharged from the tip of the sheath. At this time, the cooling water discharged from the distal end of the sheath is atomized and scattered by ultrasonic vibration at the distal end of the probe, or is sucked and collected together with the living tissue from the suction hole at the distal end of the probe.

[0004] The cooling water sucked together with the living tissue is
By mixing with the living tissue to be sucked, the amount of water in the suctioned material is increased, and there is an effect of preventing the suction passage including the inside of the probe from being clogged. On the other hand, the cooling water that is atomized and scattered may deteriorate the visual field and reduce the operation efficiency.

[0005] For this reason, Japanese Patent Laid-Open Publication No. HEI 5-15545 discloses a method of reducing the amount of cooling water discharged from the distal end of the sheath by perfusing the sheath as a double tube in order to reduce atomization of the cooling water. Is disclosed.

Japanese Patent Application Laid-Open No. 6-38973 discloses a technique for setting the amount of cooling water in conjunction with the value of the ultrasonic output, focusing on the fact that the heat generation of the probe is proportional to the intensity of the ultrasonic vibration. are doing. According to such a technique, the required minimum amount of cooling water according to the intensity of the ultrasonic vibration can be automatically selected, so that it is possible to prevent the cooling water from flowing more than necessary and suppress atomization. Become like 7 to 9 show an example of such a technique.

[0007] The ultrasonic treatment apparatus (suction apparatus) shown in FIG. 7 includes a housing 5 as an apparatus main body, a handpiece 10 connected to the housing 5 and generating ultrasonic vibration, and a housing 5.
And an output switch 16 for turning ON / OFF the driving of the apparatus main body. In case 5,
An output setting input unit 1 for setting an ultrasonic output, a water supply amount setting input unit 2 for setting a cooling water supply amount, a suction pressure setting input unit 3 for setting a suction pressure, and a setting output A ROM 6 storing a cooling water amount setting map which is data for automatically setting a cooling water amount according to the
Roller pump 7 for supplying water as cooling water, a suction pump 9, a suction bottle 11 for collecting suctioned material sucked by the suction pump 9, a roller pump 7, a handpiece 10, and the like. And a driving circuit 4 for controlling driving. The suction pump 9 is controlled separately from the drive circuit 4.

The handpiece 10 includes a probe 13 for transmitting ultrasonic vibration to a living body and a sheath 1 covering the probe 13.
2 are connected. A plurality of types of the handpiece 10, the probe 13 and the sheath 12 which are different from each other in shape, amplitude of output ultrasonic vibration, and the like are usually prepared.

As shown in FIG. 8, a suction path 15 is provided through the probe 13 in the axial direction thereof, and a suction system is connected from the suction path 15 to the suction bottle 11 through the handpiece 10. . The sheath 12 is positioned so as to cover the probe 13, and a passage 14 through which cooling water flows is formed between the sheath 12 and the probe 13.

[0010] The ultrasonic treatment apparatus having such a configuration is shown in FIG.
Operates as shown in the flowchart of FIG. That is, first, the handpiece 10 to which the probe 13 and the sheath 12 are connected is connected to the housing 5. At this time, the type of the handpiece is detected in the drive circuit 4, and the cooling water amount setting map is set in accordance with the detected handpiece 10.
Select from M6. Then, manually set the ultrasonic output,
Automatically sets the amount of cooling water according to the set output. Here, if it is desired to make the cooling water flow more than the automatically set value, the cooling water amount can be further increased by manual setting. Thereafter, the suction is manually set, and the suction pump 9 is driven accordingly.
If the user does not like the settings up to this point, the user can return to the output setting and set again. If the setting is good, the output switch 16 is turned on, the handpiece 10 is driven, and at the same time, cooling water is supplied to perform the treatment.

[0011]

SUMMARY OF THE INVENTION However, Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent No. 5545, when the atomization of the cooling water is reduced by perfusing the sheath as a double tube, the sheath becomes thicker, so that the tip of the probe is not hidden from view by the sheath. You need to be careful.

In the methods shown in FIGS. 7 to 9 including the technique of Japanese Patent Application Laid-Open No. 6-38973, the amount of cooling water depends only on the ultrasonic output setting, and the level of suction (suction pressure or suction flow rate) varies. (In the configuration of FIGS. 7 to 9, the cooling water amount setting map is set so that the probe 13 is not heated in any suction state.) In the case of a large amount of living tissue being aspirated, the amount of cooling water that is mixed and aspirated may be insufficient and the suction path may be clogged. And the atomization of the cooling water may worsen.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to prevent clogging of a suction path and atomization of cooling water without increasing the thickness of a sheath and obstructing the field of view. It is an object of the present invention to provide an ultrasonic treatment apparatus capable of preventing the occurrence of an ultrasonic wave and achieving high treatment efficiency.

[0014]

According to the present invention, there is provided a handpiece for generating ultrasonic vibration,
A probe connected to the handpiece and applying ultrasonic vibration to a living body, a sheath covering the probe, cooling water supply means for supplying cooling water for cooling the probe, and suction for aspirating living tissue Means, and an ultrasonic surgical apparatus having a device main body having a driving means for controlling the driving of the cooling water supply means and the suction means, wherein the driving means adjusts a set value of a suction pressure or a suction flow rate of the suction means. The set amount of the cooling water supplied by the cooling water supply means is adjusted based on this.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a first embodiment of the present invention. As shown in FIG. 1, an ultrasonic treatment apparatus according to the present embodiment includes a housing 5 as an apparatus main body, and a handpiece 1 connected to the housing 5 and generating ultrasonic vibration.
0, ON / O connected to the housing 5 and driving the apparatus body
And an output switch 16 for performing FF.
The housing 5 includes an output setting input unit 1 for setting an ultrasonic output, a water supply amount setting input unit 2 for setting a water supply amount of cooling water, and suction for setting a suction pressure or a suction flow rate. A ROM 6 storing a pressure setting input unit 3, a cooling water amount setting map which is data for automatically setting a cooling water amount according to a setting output, and a cooling water supply for supplying physiological saline 8 as cooling water. Roller pump (cooling water supply means) 7
, A suction pump (suction means) 9, and a suction bottle 11 for collecting the suctioned material sucked by the suction pump 9.
And a drive circuit 4 as drive means for controlling the drive of the pumps 7, 9 and the handpiece 10.
That is, unlike the related art shown in FIG.
Is performed by the drive circuit 4.

The handpiece 10 includes a probe 13 for transmitting ultrasonic vibration to a living body and a sheath 1 covering the probe 13.
2 are connected. A plurality of types of the handpiece 10, the probe 13 and the sheath 12 which are different from each other in shape, amplitude of output ultrasonic vibration, and the like are usually prepared.

A map for changing the amount of cooling water in conjunction with the suction setting is stored in the ROM 17, and the drive circuit 4 determines the type of the handpiece 10 based on the map stored in the ROM 6,17. The amount of cooling water is automatically set based on three parameters, output setting and suction setting.

The probe 13 is provided with a suction passage penetrating in the axial direction thereof, and a suction system is connected from the suction passage to the suction bottle 11 through the handpiece 10. The sheath 12 is located so as to cover the probe 13, and a passage through which cooling water flows is formed between the sheath 12 and the probe 13.

The ultrasonic treatment apparatus having such a configuration is shown in FIG.
Operates as shown in the flowchart of FIG. That is, first, the handpiece 10 to which the probe 13 and the sheath 12 are connected is connected to the housing 5 (step S1).
At this time, the type of the handpiece is detected by the drive circuit 4 (step S2), and a cooling water amount setting map is selected from the ROM 6 in accordance with the detected handpiece 10 (step S3). Next, the ultrasonic output is manually set (step S4), and the amount of cooling water according to the set output is automatically set by the drive circuit 4 (step S5). Thereafter, the suction (suction pressure or suction flow rate) is manually set (step S6), and the suction pump 9 is driven accordingly (step S7). At this time, the drive circuit 4 performs the set suction so that the overheating of the probe 13 and the clogging of the suction path of the probe 13 and the handpiece 10 do not occur and the cooling water does not atomize and scatter at the tip of the probe 13. The cooling water amount is adjusted accordingly (step S8). For this adjustment, for example, based on the case where the suction is maximum, the cooling water amount may be reduced within a range where there is no problem in cooling the probe 13 as the suction becomes weaker. As a reference, the cooling water amount may be increased as the suction becomes stronger.

Next, if it is desired to flow more than the cooling water amount set in this way, the cooling water amount can be increased by manual setting (step S9). At this time,
The adjusted cooling water amount is compared with the manually set cooling water amount (step S10). If the manually set cooling water amount is larger than the adjusted cooling water amount, the manually set cooling water amount is selected (step S12). If the manually set cooling water amount is smaller than the adjusted cooling water amount, the automatically set (adjusted) cooling water amount is selected (step S11).

If there is no problem with the above settings, the output switch 16 is turned on as it is (step S13). As a result, electric power corresponding to the set output (ultrasonic output) is supplied to the handpiece 10, and cooling water is supplied in a set (selected) amount (step S14). If there is a problem with the setting (if you do not like it), you can return to the output setting and set again.

As described above, according to the ultrasonic treatment apparatus of the present embodiment, the cooling water supplied by the cooling water supply roller pump 7 based on the set value of the suction pressure or the suction flow rate by the suction pump 9. Is adjusted. Therefore, it is possible to prevent excessive discharge of the cooling water without employing a thick and complicated structure such as a perfusion sheath, and it is possible to supply an optimum amount of the cooling water according to the output setting, the suction setting, and the suction state. Thereby, without blocking the visual field, clogging of the suction path and atomization of the cooling water can be prevented, and high treatment efficiency can be obtained.

FIGS. 3 and 4 show a second embodiment of the present invention. Note that, in this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the present embodiment, the portion relating to suction is not provided in the housing 5 but is provided outside. That is, in the present embodiment, a suction device called a wall suction 19 provided in a hospital is used as the most common situation. In this case, a suction sensor (suction measuring means) attached to the housing 5 in the middle of the suction system extending from the wall suction 19.
18 is connected, whereby the suction pressure and the suction amount are monitored. The measured value monitored by the suction sensor 18 is communicated to the drive circuit 4, and the drive circuit 4 adjusts (changes) the cooling water amount according to the monitored measured value in the same manner as in the first embodiment. This makes it possible to supply an appropriate amount of cooling water even when an external suction system is used without providing a suction system in the housing 5.

The ultrasonic treatment apparatus having such a configuration is shown in FIG.
Operates as shown in the flowchart of FIG. That is, first, the handpiece 10 to which the probe 13 and the sheath 12 are connected is connected to the housing 5 (step S1).
At this time, the type of the handpiece is detected by the drive circuit 4 (step S2), and a cooling water amount setting map is selected from the ROM 6 in accordance with the detected handpiece 10 (step S3). Next, the ultrasonic output is manually set (step S4), and the amount of cooling water according to the set output is automatically set by the drive circuit 4 (step S5). Thereafter, the suction (suction pressure or suction flow rate) of the external suction device 19 is manually set (step S6), and the external suction device 18 is driven accordingly (step S7).

Next, the cooling water amount setting is selected between a fully automatic mode and a manual mode (step S8). here,
A mode check is performed (step S9). If the fully automatic mode is selected, then the output switch is turned off.
By performing N (step S10), power corresponding to the set output (ultrasonic output) is supplied to the handpiece 10,
Cooling water is sent at the set (selected) amount (step S17). At this time, the state of the external suction device 19 is monitored by the suction sensor 18 (Step S18),
The cooling water amount is adjusted in real time according to the state (step S19). In other words, the drive circuit 4 detects a signal from the suction sensor 18 so that the overheating of the probe 13 and the clogging of the suction path of the probe 13 and the handpiece 10 do not occur and the cooling water does not atomize and scatter at the tip of the probe 13. The cooling water amount is adjusted based on the suction information (according to the set suction). For example, when the suction flow rate fluctuates and decreases, the cooling water amount is reduced, and when the suction flow rate increases, the cooling water amount is adjusted to increase.

On the other hand, when the manual setting mode of the cooling water amount is selected (step S11), the manually set cooling water amount is compared with the automatically set initial cooling water amount (step S12). If the manually set cooling water amount is larger than the automatically set initial cooling water amount, the manually set cooling water amount is selected (step S13), and the manually set cooling water amount is automatically set to the automatically set initial cooling water amount. If less, the automatically set initial cooling water amount is selected (step S14). If there is no problem with the above settings,
The output switch 16 is turned on as it is (step S1).
5). As a result, electric power corresponding to the set output (ultrasonic output) is supplied to the handpiece 10, and cooling water is sent in a set (selected) amount (step S16). If there is a problem with the setting (if you do not like it), you can return to the output setting and set again.

As described above, in this embodiment, the set amount of cooling water supplied by the cooling water supply roller pump 7 is adjusted according to the external suction state. Therefore, the same operation and effect as in the first embodiment can be obtained.

FIGS. 5 and 6 show a third embodiment of the present invention. Note that, in this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, a suction monitor 18 is provided as suction measurement means, and the suction state is constantly communicated to the drive circuit 4. With this configuration, it becomes possible to supply an appropriate amount of cooling water in real time when the suction path becomes slightly clogged during use or when the flow rate suddenly increases immediately after the clogging is released. .

The ultrasonic treatment apparatus having such a configuration is shown in FIG.
Operates as shown in the flowchart of FIG. That is, first, the handpiece 10 to which the probe 13 and the sheath 12 are connected is connected to the housing 5 (step S1).
At this time, the type of the handpiece is detected by the drive circuit 4 (step S2), and a cooling water amount setting map is selected from the ROM 6 in accordance with the detected handpiece 10 (step S3). Next, the ultrasonic output is manually set (step S4), and the amount of cooling water according to the set output is automatically set by the drive circuit 4 (step S5). Thereafter, the suction (suction pressure or suction flow rate) is manually set (step S6), and the suction pump 9 is driven accordingly (step S8). At this time, the suction state of the suction pump 9 is monitored by the suction monitor 18 (Step S9),
The cooling water system adjusts the cooling water amount in accordance with the manually set suction (step S7).

Next, the cooling water amount setting is selected between a fully automatic mode and a manual mode (step S10). Here, mode confirmation is performed (step S11), and when the fully automatic mode is selected, the output switch is subsequently turned on (step S12), whereby the power corresponding to the set output (ultrasonic output) is obtained. Is supplied to the handpiece 10, and cooling water is supplied in a set (selected) amount (step S13). At this time, the cooling water amount is adjusted in real time according to the suction state monitored by the suction monitor 18 in step S9 (step S14). In other words, the drive circuit 4 detects a signal from the suction sensor 18 so that the overheating of the probe 13 and the clogging of the suction path of the probe 13 and the handpiece 10 do not occur and the cooling water does not atomize and scatter at the tip of the probe 13. The cooling water amount is adjusted based on the suction information (according to the set suction).

On the other hand, if the manual setting mode of the cooling water amount is selected (step S15), the manually set cooling water amount is compared with the automatically set initial cooling water amount (step S16). If the manually set cooling water amount is larger than the automatically set initial cooling water amount, the manually set cooling water amount is selected (step S17), and the manually set cooling water amount is automatically set to the automatically set initial cooling water amount. If less, the automatically set initial cooling water amount is selected (step S18). If there is no problem with the above settings,
The output switch 16 is turned on as it is (step S1).
9). As a result, electric power corresponding to the set output (ultrasonic output) is supplied to the handpiece 10, and cooling water is sent in a set (selected) amount (step S20). If there is a problem with the setting (if you do not like it), you can return to the output setting and set again.

As described above, in this embodiment, the set amount of the cooling water supplied by the cooling water supply roller pump 7 is adjusted according to the suction state of the suction pump 9. . Therefore, the same operation and effect as in the first embodiment can be obtained.

It is needless to say that the present invention is not limited to the above-described embodiments, but can be variously modified without departing from the scope of the invention. That is, any configuration may be adopted as long as the optimal amount of cooling water is supplied according to the suction state to prevent deterioration of the visual field due to the atomization of the cooling water.

[0037]

As described above, according to the ultrasonic treatment apparatus of the present invention, clogging of the suction path and atomization of cooling water can be prevented without making the sheath thicker and without obstructing the visual field. Thus, high treatment efficiency can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an ultrasonic treatment apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a flow of an operation of the ultrasonic treatment apparatus in FIG.

FIG. 3 is a schematic configuration diagram of an ultrasonic treatment apparatus according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing a flow of an operation of the ultrasonic treatment apparatus in FIG. 3;

FIG. 5 is a schematic configuration diagram of an ultrasonic treatment apparatus according to a third embodiment of the present invention.

6 is a flowchart showing a flow of the operation of the ultrasonic treatment apparatus in FIG.

FIG. 7 is a schematic configuration diagram of a conventional ultrasonic treatment apparatus.

8 is a sectional view of a main part of a sheath and a probe constituting the ultrasonic treatment apparatus of FIG. 7;

FIG. 9 is a flowchart showing a flow of the operation of the ultrasonic treatment apparatus in FIG. 7;

[Explanation of symbols]

 4 ... Drive circuit (drive means) 5 ... Housing (apparatus main body) 7 ... Roller pump for supplying cooling water (cooling water supply means) 8 ... Saline (cooling water) 9 ... Suction pump (suction means) 10 ... Hand Piece 12: sheath 13: probe 18: suction sensor, suction monitor (suction measuring means)

Claims (3)

[Claims] 1. A handpiece for generating ultrasonic vibration, a probe connected to the handpiece for applying ultrasonic vibration to a living body, a sheath for covering the probe, and a cooling water for cooling the probe. An ultrasonic surgical apparatus comprising: a cooling water supply unit for performing suction; a suction unit for aspirating a living tissue; and a driving unit for controlling driving of the cooling water supply unit and the suction unit. The ultrasonic treatment apparatus is characterized in that the means adjusts a set amount of cooling water supplied by the cooling water supply means based on a set value of a suction pressure or a suction flow rate of the suction means. 2. The suction device according to claim 1, wherein the suction device includes a suction measurement device for measuring a suction pressure or a suction flow rate during the actual operation, and the driving device performs the cooling based on a measurement result by the suction measurement device. The ultrasonic treatment apparatus according to claim 1, wherein a set amount of the cooling water supplied by the water supply unit is adjusted. A handpiece for generating ultrasonic vibration, a probe connected to the handpiece for applying ultrasonic vibration to a living body, a sheath for covering the probe, and a cooling water for cooling the probe. An ultrasonic treatment apparatus comprising: a cooling water supply unit that performs cooling water supply; and a driving unit that controls driving of the cooling water supply unit. Suction means, which is separately controlled, can be connected to suction the living tissue, and the apparatus main body is provided with suction measurement means for measuring a suction pressure or a suction flow rate of the suction means at the time of actual operation. The driving means adjusts a set amount of cooling water supplied by the cooling water supply means based on a measurement result by the suction measurement means. Treatment device.