JPH0489043A - Ultrasonic knife - Google Patents

Abstract

PURPOSE:To properly peel an adhesive affected section by preventing heating with a physiological salt solution, vibrating the normal tissues around the adhesive affected section with a contact piece, vibrating and peeling the adhesive tissue in the separating direction, then sucking and discharging the physiological salt solution. CONSTITUTION:When the tip of a vibrating contact piece 3 is slid along the adhesive affected section 6a between normal organism tissues 6, the contact piece 3 can vibrate the normal organism tissues 6 around the adhesive affected section 6a in the separating direction of the adhesive affected section 6a. The contact piece 3 having a smooth curved face and rounded at the tip section can peel the adhesive affected section 6a without damaging it, e.g. cutting. A physiological salt solution is fed to the adhesive affected section 6a through an irrigation pipe 4 and sucked by a suction pipe 5, thus the heating of the affected section 6a due to ultrasonic vibration can be prevented. The affected section 6a can be properly peeled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an ultrasonic scalpel, and more particularly to an ultrasonic scalpel for peeling off adhesions.

[Background of the Invention] Currently, when performing exfoliation treatment for so-called adhesions, in which biological tissues such as skin and membranes that should normally be separated adhere to each other due to inflammation, etc., a scalpel with sharp teeth or electricity is used to remove the adhesions. An electric scalpel that uses heat to burn off hardened tissues, and an ultrasonic scalpel that crushes hardened tissues using ultrasonic vibrations are used.

The ultrasonic scalpel will be explained with reference to FIG.

In the figure, 1 is an outer cylindrical portion, and this outer cylindrical portion 1 houses an ultrasonic vibration mechanism.

Reference numeral 2 denotes a vibrating female part which has a cylindrical shape and is vibrated by an ultrasonic vibration mechanism housed in the outer cylindrical part 1.

The tip of this vibrating scalpel section 2 is brought into direct contact with the fi-adhered tissue, and the hardened tissue is crushed by vibration to emulsify it, thereby performing exfoliation treatment of the applied part.

Reference numeral 2a denotes a discharge passage passing through the narrow center of the vibrating scalpel 2 and communicating with a discharge passage 1a passing through the axial center of the outer cylinder portion 1 as well.

This discharge B1a is connected to a suction mechanism (not shown), and the crushed emulsion crushed by the vibrating scalpel 2 is suctioned and removed from the discharge path 2a.

However, the conventional scalpel, electric scalpel, and ultrasonic scalpel used as the conventional hard adhesive removal means have the following problems.

That is, these incision means have the disadvantage of damaging normal biological tissue other than hard tissue.

For example, -M-type scalpels can cause operational errors, electric scalpels can destroy normal tissue due to heat generation, and ultrasonic scalpels can cause disruption of normal tissue due to transmission of excessive vibrations to the tissue. arise.

[Summary of the Invention] The ultrasonic scalpel according to the present invention has been made in order to solve the above-mentioned conventional problems. An abutment element attached to one end that vibrates in the horizontal direction of the outer cylinder using an ultrasonic vibration mechanism, an irrigation pipe that discharges saline to the affected area, and suction removes the saline discharged to the affected area. The tip of the abutting element has a cut surface having a predetermined angle, and the cut surface has an abutment formed by a notch having a predetermined angle that narrows toward the tip. With a contact surface, physiological saline is discharged from the irrigation pipe and while preventing heat generation due to ultrasonic vibration, the abutment element vibrates the normal tissue around the adherent area and vibrates in the direction of separating the adherent tissue. This is an attempt to solve the above-mentioned conventional problems by peeling off the tube and suctioning and discharging the physiological saline through the suction pipe.

[Function] In the ultrasonic scalpel according to the present invention, while discharging physiological saline from the irrigation pipe and preventing heat generation due to ultrasonic vibration, the cut surface of the abutment element that vibrates ultrasonically has a predetermined angle and a predetermined shape. By bringing the abutment surface formed by the notch at an angle into contact with the adhered affected area, it vibrates the normal tissue around the adhesion area, vibrates it in the direction of opening the nitric point, and then removes the suction pipe. Aspirate and drain more saline.

[Embodiments of the invention] The present invention will be described in detail based on the drawings.

FIG. 1 and FIG. 3 are diagrams showing one embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes an outer cylindrical portion, and this outer cylindrical portion 1 houses an ultrasonic vibrator as an ultrasonic vibration mechanism, and this ultrasonic vibrator is connected to an ultrasonic oscillator (not shown). It is connected via a cable 1a to generate ultrasonic vibrations.

Reference numeral 3 denotes an abutment element, which is attached to one end of the outer cylindrical part l, and is vibrated in the direction of arrow A by the ultrasonic vibrator, magnifying the vibration of the ultrasonic vibrator, and increasing the resonance frequency of the tip. , 15 to 40 KHz.

Further, 4 is an irrigation pipe, and the discharge port 4b is
It is located near the tip of the abutting element 3.

4a is a joint portion for connecting the physiological saline supply mechanism (not shown) and the irrigation pipe 4 with a tube (not shown).

5 is a suction pipe, and a suction port 5b is located near the tip of the contact element 3.

5a is a joint portion for connecting an external suction device and the suction vibrator 5 with a tube (not shown).

Next, the shape of the tip of the abutting element 3 will be explained with reference to FIG.

FIG. 2(a) is a side view showing the tip of the contact element 3,
FIG. 2B is a diagram showing the contact element 3 shown in FIG. 1A from the direction of arrow B.

As shown in FIG. 3(a), the tip of the abutting element 3
1 is formed, and a notch formed at a predetermined angle θ2 is formed so that the surface formed by this becomes narrower toward the tip, as shown in FIG. 2(b).

3a is a contact surface formed by the above-mentioned cuts and notches.

As shown in FIG. 3A, the abutment surface 3a has a gently curved surface and a rounded tip.

The ultrasonic scalpel according to the present invention is used by sliding the contact surface 3a along the healed affected area.

Next, the operation of the ultrasonic scalpel constructed as described above will be explained with reference to FIG. - As shown in FIG. 3(a), the contact surface 3a of the contact element 3 having an angle θ1 is jan01 with respect to the vibration width S of the ultrasonic vibration.
minute, it vibrates in the H direction.

As shown in FIG. 3B, the side end of the contact surface 3a of the contact element 3 having an angle θ2 vibrates in the W direction by sinθ1·tanθ2/2 with respect to the vibration width S of the ultrasonic vibration. do.

(In the figure, only the left side is shown as an example.) As shown in the figure (c), the tip of the abutting element 3 that vibrates as described above is applied to the affected area 6a of the normal living tissue 6.6. slide along.

As a result, the contact element 3 can be applied not only in one direction, the vibration direction A of the ultrasonic transducer, but also in the downward direction H and the lateral direction S, as shown in FIGS. It is possible to vibrate the normal living tissue 6.6 around the applied affected area 6a in the direction of separation.

The abutting element 3, which has a gently curved surface and a rounded tip, can be peeled off without causing damage such as cutting open the affected area 6a.

Also f! biological saline from Irrigation Vibe 4! j,
By discharging it onto the affected area 6a and suctioning it with the suction vibrator 5, heat generation in the affected area 6a due to ultrasonic vibration is prevented.
It is possible to exfoliate the affected area 6a more appropriately.

Next, a second embodiment of the present invention will be explained with reference to FIG.

In the ultrasonic scalpel shown in FIG. 4, an irrigation vibrator 4 and a suction vibrator 5 are formed by through-holes formed in the abutment element 3, respectively.

And the discharge port 4b and suction port 5 of each of these pipes 4.5
b is provided on the contact surface 3a.

According to the ultrasonic scalpel configured as described above, each pipe 4.5 does not obstruct visual observation of the position of the affected adhesion during the work of peeling off the adhesions.

[Effects of the Invention] As explained above, the ultrasonic scalpel according to the present invention vibrates the normal tissue around the fI-applied affected area using the abutting portion that generates ultrasonic vibrations, thereby separating the fI-applied affected area. Since it is configured to perform vibrational peeling, it is possible to properly peel off the affected area without causing damage such as cutting it open.

[Brief explanation of drawings]

1 to 3 are diagrams showing one embodiment of the ultrasonic scalpel according to the present invention. FIG. 1 is a plan view showing the configuration of the ultrasonic scalpel, and FIG.
Figures illustrating the tip of the abutting element; Figure (a) is a side view of the abutting element; Figure (b) is a side view of the abutting element shown in Figure (a) from the direction of arrow B. , Figure 3 is a diagram showing the action of the ultrasonic scalpel, Figure 3 (a) and Figure 3 (b) are explanatory diagrams showing the vibration state of the abutment element, Figure 3 (c) is a diagram showing the action of the ultrasonic scalpel. FIG. 4 is a plan view showing an ultrasonic scalpel in which an irrigation vibrator and a suction vibrator are formed by through-holes formed in the contact piece, and FIG. 5 is an explanatory diagram showing a state of use. It is a figure showing a sonic scalpel. In the figure: - Outer cylinder part - Contact element 3a - Contact surface - Irrigation pipe - Suction pipe

Claims (3)

[Claims] (1) An ultrasonic scalpel for separating adhering tissue from each other, which includes an outer cylinder part having an ultrasonic vibration mechanism, and an ultrasonic vibration mechanism attached to one end of the outer cylinder part that operates in the longitudinal direction of the outer cylinder by the ultrasonic vibration mechanism. an irrigation pipe that discharges physiological saline to the adhesion affected area; and a suction pipe that suctions and removes the saline discharged to the adhesion affected area; The part has a notch surface with a predetermined angle, and the notch surface has an abutment surface formed by a notch with a predetermined angle that narrows toward the tip, and discharges physiological saline from the irrigation pipe and generates ultrasonic vibrations. The contact surface of the abutment element vibrates the normal tissue around the adhesion site, vibrates the adhesion tissue in a direction that separates it, and suctions and discharges the saline from the suction pipe while preventing heat generation due to the adhesions. An ultrasonic scalpel characterized by: (2) The abutting element has a gently curved abutting surface and a rounded tip, and applies vibration to the normal tissue around the adhesions to cut open the adhesions. An ultrasonic scalpel characterized by vibration-free peeling. (3) The irrigation pipe and suction pipe are
An ultrasonic scalpel characterized by comprising through holes formed in each abutting element.