JPWO2010016259A1 - Handheld electrosurgical unit - Google Patents

Abstract

[Summary] [Problem] A handy electrosurgical device that can be used in hospital wards, outpatients, or outdoors and has a high degree of freedom in handling. An electrosurgical device is configured by electrically connecting a high-frequency circuit and a battery to tweezers. The main body 1 can be used with one hand and is not restricted by the presence or absence or position of the power outlet, so it can be used anywhere. [Selection] Figure 3

Description

  The present invention relates to a bipolar high-frequency coagulation and hemostasis device (hereinafter referred to as “electrosurgical device”) that rapidly stops hemostasis in a surgical operation or the like.

  In surgery and the like, it is important to quickly stop the affected area and adhere the tissue. For this purpose, a bipolar type high-frequency coagulation hemostasis device having a tweezers, that is, an electrosurgical device is used. The bipolar type coagulates and stops hemostasis by flowing a high-frequency current generated by a power supply device between two tips of tweezers and energizing a tissue sandwiched between tweezers, and is described in Patent Document 1 and the like.

  As shown in FIG. 8, a conventional bipolar high-frequency electrosurgical device is connected to a 100 V power source by a power plug 10 and has a main body 1 containing a power supply unit that generates a high frequency, and a conductive material for coagulation and hemostasis across tissue. Is generally connected to the tweezers 2 by an electric wire 11 and is energized by a foot switch 12. Since this method is premised on use in an operating room, it has poor portability, has a low degree of freedom in handling, and has a problem that there are restrictions on the place of use.

Patent Document 2 describes an invention of a surgical instrument equipped with all necessary components such as a power source and an energizing switch in a tweezer part. An example of this embodiment is shown in FIG.
This figure is a perspective view of the tweezers 2 as a surgical tool, 2a and 2b are two plate-like members, 2c is a handle, 4a and 4b are cutting switches and coagulation energizing switches, and 7a includes an oscillation circuit. The driving unit 7b is a battery.

  There are at least two problems with this invention. First, tweezers usually use two fingers, a thumb and an index finger. However, no matter how small and lightweight the drive unit 7a and the battery 7b including the oscillation circuit are, the tweezers 2 It is inevitable that the weight of the tweezers 2 will increase and the operability will deteriorate. Secondly, since the energization switches 4a and 4b are provided on the plate-like members 2a and 2b of the tweezers 2, the operation of sandwiching the affected area and the on / off of the current must be performed with the same finger. As will be explained later, this can cause serious problems in the delicate operation of surgery.

JP 2008-17917 A JP 2000-262533 A

  With the progress of medical care, there is an increasing need for a hand-held high-frequency coagulation and hemostasis device that can be used in hospital wards, outpatients, or in the field of emergency medical care in the event of an accident or disaster, and has a high degree of freedom in handling. An object of the present invention is to solve the above problems and to realize a handy electrosurgical device suitable for delicate work.

In order to achieve this object, in the present invention, the conductive tweezers is a handy type that is directly attached to the main body, not connected to the main body via an electric wire.
In addition, although there are individual differences in the feeling of use depending on the size of the hand and the length of the fingers, the tweezers can be attached to the main body to change the angle to absorb the individual differences and increase the degree of freedom of handling.
The angle may be changed between the main body and the tweezers, or a rotating part may be provided on the main body itself.

In addition, the tweezers can be attached to and detached from the main body, and can be used in various situations by exchanging with various types of tweezers such as those for Adson and otolaryngology, and hygiene measures such as disinfection have been facilitated.
That is, the present invention described in claim 1 includes a power source unit incorporating a high-frequency circuit and a battery, a tweezer mounting seat and an energization switch electrically connected to the power source unit, and a main body that can be held with one hand, and the tweezers. This is a hand-held electrosurgical device comprising conductive tweezers that can be attached to and detached from a mounting seat.

The present invention according to claim 2 is the handy type electrosurgical device according to claim 1, wherein the power supply unit is built in the main body.
The present invention according to claim 3 is the handy type electrosurgical instrument according to claim 1 or 2, wherein a light source is provided in the main body.
The present invention according to claim 4 is the handy type electrosurgical instrument according to any one of claims 1 to 3, wherein the tweezers can change an attachment angle with respect to the main body.

  Since the electrosurgical device of the present invention uses a battery as a power source, a cordless handy electrosurgical device is basically realized, which can be used not only in the operating room but also in a wide variety of cases including the outdoors, and can be quickly and appropriately used. Excellent effect that treatment is possible.

It is a perspective view which shows the external appearance of the handy type electrosurgical device of the 1st Example of this invention. 1 is a side view of a handy electrosurgical device according to a first embodiment of the present invention. It is a perspective view which shows the use condition of the handy type electrosurgical device of the 1st Example of this invention. It is a perspective view which shows the tweezers folded state at the time of non-use of the hand-held electrosurgical instrument of the 1st Example of this invention. It is a perspective view which shows the state which removed the tweezers of the handy type electrosurgical instrument of 1st Example of this invention. It is a perspective view which shows the external appearance of the handy type electrosurgical device of the 2nd Example of this invention. (A) is a side view which shows the external appearance of the handy type electrosurgical instrument of the 3rd Example of this invention, (b) is a perspective view which similarly shows the flexible tube of this Example. It is explanatory drawing which shows the structure of the conventional bipolar type high frequency electrosurgical device. It is a perspective view which shows a well-known electrosurgical instrument.

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

  FIG. 1 is a perspective view showing the appearance of a hand-held electrosurgical device according to a first embodiment of the present invention, FIG. 2 is a side view, and a power supply unit including a high-frequency circuit 7a and a battery 7b indicated by broken lines is built in the main body 1. Conductive tweezers 2 are electrically connected to this. Reference numeral 3 denotes a rotating portion, and the tweezers 2 can be rotated at an angle with respect to the main body 1 around this. 4 is an energizing switch, 5 is a light source switch, and 6 is a light source.

  The configuration of the battery and the high-frequency circuit has been realized by the development of semiconductor technology and batteries in recent years. In particular, the development of an ultra-small transformer of 2 cm × 2 cm × 1 cm for a frequency of 1.7 MHz greatly contributes. When combined with five 2000 mAh nickel-metal hydride batteries, an electrosurgical device can be used for about 30 minutes with an output of about 15 W, and can sufficiently cope with outpatient surgery and the like. In addition, the frequency can be used in a wide range from 300 kHz to 5 MHz, and various small batteries including the above-described nickel metal hydride battery can be used as the battery, but the battery has a large capacity and a low internal resistance. Is effective in reducing the size of the apparatus.

  FIG. 3 is a perspective view showing a usage state of the electrosurgical device of this embodiment. Hold the main body 1 with one hand, operate the tweezers 2 with the thumb and index finger, and operate the energizing switch 4 as needed while holding the main body with the remaining fingers. When the tissue at the bleeding site is pinched with the tip of the tweezers 2 and the energizing switch 4 is pressed, a high-frequency current flows between the two tips of the tweezers 2, and the pinched tissue is coagulated and hemostatic.

  Of the five fingers of a human hand, the thumb and index finger are controlled by the radial nerve, the index finger, middle finger, and ring finger are controlled by the median nerve, and the ring finger and little finger are controlled by the ulnar nerve. is there. In other words, there are only two fingers, the thumb and the little finger, that can be moved independently, and the other fingers are linked. Therefore, if the switch is handled with the little finger in the present invention, the delicate operation of the tweezers is not affected.

FIG. 4 shows a non-use state. Folding the tweezers 2 around the rotating part 3 is advantageous because it is compact and does not take up space during sterilization or storage.
The light source 6 shown in FIG. 4 is a small light source such as a white LED, which is turned on by the light source switch 5 to irradiate light toward the tip of the tweezers 2 and is illuminated when the wound is deep. It is useful because it can be operated while applying.

  FIG. 5 shows a state in which the tweezers 2 are removed in the first embodiment, and 9 is an attaching / detaching portion. By changing the type of tweezers according to the purpose or exchanging dirty tweezers for a new one, the range of use of this electrosurgical device is expanded and convenience is improved.

FIG. 6 is a perspective view showing an electrosurgical device according to a second embodiment of the present invention. Only the differences from the first embodiment will be described below.
In this embodiment, the high-frequency circuit and the battery are not built in the main body, but are placed separately as the power supply unit 7 and connected to the tweezers 2 by the electric wire 11. The tweezers 2 are pluggable and detachable. Reference numeral 13 denotes a stand for temporarily placing the electrosurgical device.

As described above, although both high-frequency circuits and batteries have been miniaturized in recent years, there is still room for dissatisfaction such as heavyness and size when pursuing the operability of electrosurgical instruments. You have to think about putting it apart.
In the example of FIG. 6, the main body 1 is integrated and the angle of the tweezers 2 cannot be changed, but it is also easy to change the angle by providing a hinge in the central constricted portion.

FIG. 7A is a side view showing an electrosurgical device according to a third embodiment of the present invention, and FIG. 7B is a perspective view showing a flexible tube. Also in this embodiment, only portions different from the previous embodiments will be described.
In this embodiment, the main body is divided into a gripping portion 1a and a tweezers 2 setting portion 1b, which are connected by a flexible tube 1c. The flexible tube 1c is a tube made of metal, resin, etc., and can be bent into an arbitrary shape if a force is applied. Therefore, the angle of the tweezers 2 with respect to the gripping portion 1a can be arbitrarily tilted (swinged). . An electric wire connected to the switch 4 passes through the flexible tube 1c. Instead of the tube and the electric wire, the covered electric wire itself may be used.

DESCRIPTION OF SYMBOLS 1, 1a-1c Main body 2 Tweezers 2a, 2b Plate-shaped member 3 Rotating part 4, 4a, 4b Energizing switch 5 Light source switch 6 Light source 7 Power supply part 7a High frequency circuit (drive part)
7b Battery 8 Stand 9 Detachable part 10 Power plug 11 Electric wire 12 Foot switch

Claims (4)

A power supply unit incorporating a high-frequency circuit and a battery;
A tweezers mounting seat that is electrically connected to this power supply unit and a power switch, and a body that can be gripped with one hand,
A hand-held electrosurgical instrument comprising: conductive tweezers detachable from the tweezer mounting seat.   The handheld electrosurgical device according to claim 1, wherein the power supply unit is built in the main body.   The handheld electrosurgical device according to claim 1 or 2, wherein the main body is provided with a light source.   The hand-held electrosurgical device according to any one of claims 1 to 3, wherein the tweezers can change an attachment angle with respect to the main body.

Images