KR101655107B1

KR101655107B1 - Medical handpiece

Info

Publication number: KR101655107B1
Application number: KR1020150058137A
Authority: KR
Inventors: 백승국; 이정주; 최원식
Original assignee: 고려대학교 산학협력단
Priority date: 2015-04-24
Filing date: 2015-04-24
Publication date: 2016-09-07

Abstract

A medical handpiece according to an embodiment of the present invention includes a main body 10 and a main body 10 extending from one end of the main body 10 and irradiating the laser light 3 at a distal end thereof, And a bar extending from one end of the main body 10 and having a distal end protruding longer than the distal end of the light irradiating part 20 so as to be cauterized 1) to be peeled off.

Description

{MEDICAL HANDPIECE}

The present invention relates to a medical handpiece.

In medical surgery, a surgical knife is used to ablate a living tissue. Such a knife is called a scalpel. Mesh is one of the most active medical devices in the medical field, small enough to be used by doctors and easy to use. However, there are some problems when cutting a living tissue using a scalpel. The most representative of them is bleeding and hemostasis. When a biopsy is resected by a sharp scalpel, capillary blood vessels or sebaceous blood vessels are also cut and bleeding is inevitable. In this case, the bleeding site is squeezed with gauze, or the blood vessel is clamped with forceps. In the case of resection using a scalpel, a separate hemostasis tool must be used, so that there is a temporal gap between resection and hemostasis, so that the amount of hemostasis increases and the operation time increases.

In order to solve the problem of this scalpel, a laser handpiece has been devised as disclosed in the patent documents of the following prior art documents. A laser handpiece is a medical instrument that irradiates laser light to cut and solidify the affected part. Laser-assisted surgery allows for both ablation and hemostasis, thus reducing bleeding and operation time. Further, since the spot where the laser beam is focused is formed to be very small, fine cutting can be performed. However, since the laser handpiece according to the prior art is of the non-contact type, it is difficult to mechanically peel off a part of the living tissue while cutting it out. Therefore, it is necessary to use a separate mechanism for mechanical peeling, and it takes time to replace the mechanism, so that there is a problem that the operation time becomes long. Further, when the laser beam is irradiated to the living tissue, the physician grasps and fixes the laser handpiece, so that it is difficult to adjust the focus and defocus modes. That is, the physician can not easily grasp the distance between the laser handpiece and the living tissue, so that it is not possible to precisely control the focal distance of the laser light, and thus it is difficult to selectively treat the ablation and solidification.

Accordingly, there is a desperate need for a solution to the problem occurring in the laser handpiece according to the prior art.

KR 1999-0087970 A

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and one aspect of the present invention is to provide a laser light emitting device, And to provide a medical handpiece capable of simultaneous peeling.

Another aspect of the present invention is to provide a medical handpiece capable of selectively performing a cauterization by laser and a cauterization by electricity by disposing a cauterizing electrode at the end of the peeling portion.

A medical handpiece according to an embodiment of the present invention includes a main body, a light irradiation part extending from one end of the main body and cauterizing a living tissue by irradiating laser light at an end thereof, And a peeling section for peeling off the biotissue, the distal end of which protrudes longer than the distal end of the light irradiation section and is cauterized.

Further, in the medical handpiece according to the embodiment of the present invention,

And an optical fiber for transmitting the laser light emitted from the light source.

Further, in the medical handpiece according to the embodiment of the present invention, the light irradiating part may be formed in a hollow tube shape, and further includes an insertion tube into which the optical fiber is inserted.

Further, in the medical handpiece according to the embodiment of the present invention, the wavelength of the laser light is variable.

Further, in the medical handpiece according to the embodiment of the present invention, the focal length from one end of the main body to the focal point at which the laser light is focused, and the length from one end of the main body to the end of the peeling section correspond to each other.

Further, in the medical handpiece according to the embodiment of the present invention, the peeling section slides into the main body, and the distance between the distal end of the light irradiation section and the distal end of the peeling section is adjusted.

Further, in the medical handpiece according to the embodiment of the present invention, the peeling portion is formed of steel or titanium.

Further, in the medical handpiece according to the embodiment of the present invention, the peeling section includes a cauterizing electrode disposed at the distal end and electrically heated to cauterize the biotissue.

Further, in the medical handpiece according to the embodiment of the present invention, the peeling section rotates around the light irradiation section.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

According to the present invention, since the bar-shaped peeling section is arranged in parallel to the light irradiation section for irradiating the laser light, the biotissue cauterized by the laser light can be peeled off by the peeling section. Therefore, there is an advantage that cauterization by laser light and mechanical peeling can be performed at the same time.

Further, according to the present invention, by disposing the cauterizing electrode at the end of the peeling section, the biotissue of the peeling section can be electrocauterized to selectively perform the cauterization by laser and the cauterization by electricity.

1 is a front view of a medical handpiece according to a first embodiment of the present invention.
2 is a side view of a medical handpiece according to a first embodiment of the present invention.
3 to 4 are front views of a medical handpiece according to a second embodiment of the present invention.
5 is a side view of a medical handpiece according to a third embodiment of the present invention.
6 is a perspective view of a medical handpiece according to a fourth embodiment of the present invention.
7 is an exploded perspective view of a medical handpiece according to a fourth embodiment of the present invention.
8 is a perspective view of a medical handpiece according to a fifth embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. Also, the terms "first "," second ", and the like are used to distinguish one element from another element, and the element is not limited thereto. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view of a medical handpiece according to a first embodiment of the present invention, and FIG. 2 is a side view of a medical handpiece according to the first embodiment of the present invention.

1 and 2, a medical handpiece according to the present embodiment includes a main body 10, a main body 10, and a main body 10, which extend from one end of the main body 10 and irradiate the laser light 3 at the ends, And a cantilevered portion 20 extending in the form of a bar from one end of the body 10 and having a distal end projected longer than the distal end of the light irradiation portion 20, And a peeling section 30 for peeling the peeling section 30.

A medical handpiece according to the present embodiment is a medical device for cautery of a living tissue 1 and includes a main body 10, a light irradiation part 20, and a peeling part 30.

Specifically, the medical handpiece according to the present embodiment is a medical instrument that is used in a napping operation to incise or cut out the biotissue 1, or to suppress bleeding occurring at this time. Herein, the biological tissue 1 refers to a tissue of a human or animal such as skin, blood vessel, or intestine. Therefore, the medical handpiece according to the present embodiment is used when performing a cautery as a treatment method for treating a human or an animal. Here, the term " cautery " means a method of destroying tissue for incision, transfer, or hemostasis purposes. The medical handpiece according to the present embodiment irradiates the laser light 3 to destroy the tissue. At this time, in order to accurately irradiate the laser beam 3 to the biotissue 1 to be cauterized, the medical hand piece according to the present embodiment must be fixed. This fixation is performed by grasping the main body 10.

Here, the main body 10 is a portion where the medical handpiece according to the present embodiment is gripped. Therefore, the physician directly grasps the body 10 by hand and uses the medical hand piece according to the present embodiment. However, the medical handpiece according to the present embodiment is not necessarily handled by a physician, but may be used by being attached to a separate fixing device, so that the fixing device may hold the main body 10. When the main body 10 is gripped and the medical handpiece according to the present embodiment is stably fixed, the light irradiation unit 20 is aimed at the living tissue 1 to irradiate the laser light 3. [

Here, the light irradiation part 20 is a part for directly irradiating the biological tissue 1 with the laser light 3. Specifically, the light irradiation unit 20 is extended from one end of the main body 10, and the laser light 3 is irradiated at the end thereof. Here, the laser light 3 is generated and emitted from the light source, and the light irradiation unit 20 transmits the laser light 3 to irradiate the living tissue 1. At this time, the light irradiation unit 20 may include an optical fiber 21 to transmit the laser light 3. [ The optical fiber 21 serves as the most effective light transmission path, and light can be propagated to a long distance because the light does not leak even when bent. Therefore, the light irradiation unit 20 can be formed not only in a straight line along the longitudinal direction of the main body 10 but also bent at a predetermined angle with respect to the longitudinal direction of the main body 10 Not). The distal end of the light irradiation part 20 can be aimed at the specific living tissue 1 without moving the main body 10 so that the living tissue 1 can be positioned without being restricted by the space when the light irradiation part 20 is bent. I can cauterize.

In addition, a plurality of light irradiating units 20 are formed by being bent in various shapes, and are detachably coupled to the main body 10, so that they may be exchanged with each other depending on the situation.

The light irradiation unit 20 may further include an insertion tube 23 to prevent the optical fiber 21 from being bent or contaminated. Here, the insertion tube 23 is formed in the shape of a hollow tube. Therefore, the optical fiber 21 is inserted into the insertion tube 23, supported and protected.

The laser light 3 irradiated from the light irradiation unit 20 evaporates the living tissue 1 at a high temperature instantaneously and separates the living tissue 1 and coagulates the living tissue 1 to perform hemostasis. Therefore, the medical handpiece according to the present embodiment can simultaneously perform ablation of the living tissue 1 and hemostasis, so that the amount of bleeding and the operation time can be drastically reduced. Further, since the laser light 3 can be condensed at a predetermined focal point f by using a lens or the like, the living tissue 1 can be finely cut out.

At this time, the wavelength of the laser light 3 can be varied according to the biological tissue 1 and the use. For example, when the soft tissues are evaporated and the small blood vessels are cauterized, the infrared laser light 3 having a long wavelength can be changed to the visible light laser light 3 having a short wavelength when hemorrhage of blood vessels is controlled. However, the wavelength of the laser light 3 is not necessarily limited to such a case, but the wavelength of the laser light 3 can be determined in consideration of the state of the living tissue 1 and its use.

On the other hand, in the process of cutting out the living tissue 1 by the laser beam 3, mechanical peeling is performed by the peeling section 30. [

The peeling portion 30 is a portion for mechanically peeling the biotissue 1. Specifically, the peeling section 30 extends from one end of the main body 10 in the form of a bar and is disposed in parallel to the light irradiation section 20. At this time, the ends of the peeling section 30 are irradiated with light ). &Lt; / RTI > The distal end of the light irradiation part 20 for irradiating the laser light 3 is spaced apart from the living tissue 1 even though the distal end of the peeling part 30 is in contact with the living tissue 1. [ Thus, the peeling section 30 is formed longer than the light irradiating section 20, so that while the light irradiating section 20 irradiates the laser light 3 to cauterize the living tissue 1, the peeling section 30 The biotissue 1 can be mechanically peeled by contacting the biotissue 1 to be cauterized. For example, when the living tissue 1 is excised by cutting the lower layer of the living tissue 1, the peeling section 30 pushes the living tissue 1 to expose the lower layer of the living tissue 1, The laser light 3 is irradiated to the lower layer of the biotissue 1 to peel the biotissue 1 therefrom. On the other hand, the peeling section 30 can be formed of steel or titanium, which is light and has high strength, because it makes contact with the living tissue 1 and exerts a force to peel the living tissue 1. [ However, it is not necessarily limited to steel or titanium, but may be formed of another material as long as the peeling section 30 can perform mechanical peeling. Therefore, the medical handpiece according to the present embodiment can cut out the living tissue 1 using the non-contact type laser and the contact type peeling unit 30 at the same time, thereby reducing the time required for replacing the peeling mechanism, .

On the other hand, the peeling section 30 not only performs mechanical peeling but also can control the focus and defocus modes, which will be described in detail below.

3 to 4 are front views of a medical handpiece according to a second embodiment of the present invention.

3, the medical hand piece according to the present embodiment has a focal length from one end of the main body 10 to the focus f and a length from one end of the main body 10 to the distal end of the peeling portion 30 Can correspond to each other. Here, the focus f means a point at which the laser beam 3 converges at a certain point on the optical axis when the laser beam 3 is converged. The laser light 3 is converged at a certain point on a plane perpendicular to the distal end of the peeling section 30. When the distal end of the peeling section 30 comes into contact with the living tissue 1, And the laser light 3 is condensed at the focal point f. That is, the distal end of the peeling section 30 is brought into contact with the living tissue 1, thereby becoming the focus mode. Here, the focus mode means a state in which the focus f of the laser light 3 is in contact with the living tissue 1. [ At this time, since the thermal energy by the laser light 3 is concentrated at the focus f, the living tissue 1 can be finely cut without causing heat damage to the periphery. On the other hand, when the distal end of the peeling section 30 is separated from the living tissue 1, that is, the distal end of the light irradiation section 20 is retracted from the living tissue 1, the defocus mode is established. Here, the defocus mode is a state in which the focus f of the laser light 3 is not made in the living tissue 1 and the focus f is formed between the end of the living tissue 1 and the light irradiation part 20 (See FIG. 4). In this defocus mode, the laser light 3 passing through the focus f is diffused and irradiated to the living tissue 1. [ Therefore, since the thermal energy is uniformly dispersed in the spot of the laser light 3, the defocus mode can be applied when controlling the bleeding by burning blood vessels and the like. Here, the spot of the laser light 3 means a point where the laser light 3 is incident on the living tissue 1. Therefore, as the distal end of the light irradiation part 20 is retracted from the living tissue 1, the area of the spot of the laser light 3 is widened, so that heat energy can be supplied to a wide area.

In order to determine the area of the spot of the laser light 3 in the case of maintaining the defocus mode, it is necessary to be able to grasp how far the distal end of the light irradiation part 20 is from the living tissue 1. 4, the peeling section 30 may be slid into the main body 10 such that the length of the peeling section 30 is adjusted. Specifically, the other end opposite to the one end of the peeling section 30, that is, the end opposite to the end of the peeling section 30 contacting the living tissue 1, is inserted into the main body 10 from one end of the main body 10, Lt; / RTI > As the peeling section 30 is slid in this manner, the distance L (hereinafter, defined as the irradiation distance) between the distal end of the light irradiation section 20 and the distal end of the peeling section 30 is adjusted. At this time, when the distal end of the peeling section 30 comes into contact with the living tissue 1, it can be easily known how far the distal end of the light irradiation section 20 is spaced from the living tissue 1 from the irradiation distance L . That is, by adjusting the irradiation distance L, the defocus mode is changed and the area of the spot of the laser light 3 is thereby controlled. Further, even in the defocus mode, the distal end of the peeling section 30 abuts against the living tissue 1, so that shaking of the main body 10 connected to the peeling section 30 is suppressed. At this time, since the movement of the light irradiation unit 20 connected to the main body 10 is minimized, the medical handpiece according to the present embodiment can stably irradiate the laser light 3 at a desired position.

On the other hand, the sliding of the peeling section 30 can be controlled through the switch S. For example, the peeling section 30 is connected to one end and the other end of the main body 10, that is, the sliding switch moving forward and backward of the main body 10, and the peeling section 30 is moved along the moving direction of the switch S Can be slid. However, the switch S is not necessarily limited to the sliding switch but includes all known switches for sliding the peeling section 30 in an electrically or mechanically manner.

5 is a side view of a medical handpiece according to a third embodiment of the present invention.

As shown in Fig. 5, the peeling section 30 of the medical handpiece according to the present embodiment may include a cauterizing electrode 31 for electrically cauterizing the living tissue 1. [ Here, the cauterizing electrode 31 is an electrode used for electric cauterization. This cauterizing electrode 31 is disposed at the end of the peeling section 30. [ Therefore, the biotissue 1 in contact with the distal end of the peeling section 30 is broken by the cauterization electrode 31, and is cut and solidified. Particularly, in the case where an obstacle, that is, another tissue, is placed in the path along which the laser light 3 is irradiated, the medical handpiece according to the present embodiment approaches the detachable portion 30 to the living tissue 1 by bypassing the obstacle , The living tissue 1 can be easily cauterized by using the cauterizing electrode 31. [

FIG. 6 is a perspective view of a medical handpiece according to a fourth embodiment of the present invention, FIG. 7 is an exploded perspective view of a medical handpiece according to a fourth embodiment of the present invention, and FIG. 8 is a cross- Fig.

6, the peeling section 30 of the medical handpiece according to the present embodiment can rotate around the light irradiation section 20. [ When the biotissue 1 is mechanically peeled off using the peeling section 30, the biotissue 1 is removed from the biotissue 1 due to the ablation site of the biotissue 1, The location may vary. At this time, as the peeling section 30 rotates about the light irradiating section 20, the position of the peeling section 30 is changed with respect to the light irradiating section 20, so that force is applied to the living tissue 1 at various positions Can be added. In addition, even when the peeling section 30 covers the path of the laser light 3, the peeling section 30 can be rotated without securing the main body 10 to ensure the visual field easily.

At this time, the rotation of the peeling unit 30 can be realized by using the rotational force of the motor 33. 7, the shaft 34 of the rotating motor 33 is connected to the central portion of the rotary plate 35, and the edge portion of the rotary plate 35 is provided with a peeling portion 30 The peeling section 30 can be rotated by the rotational force of the motor 33. [ However, the peeling section 30 is not necessarily rotated by the rotational force of the motor 33, but may be manually rotated. Specifically, as shown in Fig. 8, a pivoting portion 37 is disposed at one end of the main body 10 and rotates around the light irradiating portion 20, and the pivoting portion 37 Once connected. Therefore, when the user rotates the rotating portion 37, the peeling portion 30 rotates accordingly.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification or improvement is possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1: biotissue 3: laser light
10: main body 20:
21: optical fiber 23: insertion tube
30: peeling section 31: cauterization electrode
33: motor 34: shaft
35: spindle 37:

Claims

main body;
A light irradiating part extending from one end of the main body and cauterizing a living tissue by irradiating laser light at an end thereof; And
A bar extending from one end of the main body and disposed in parallel with the light irradiation part and having a distal end protruding longer than a distal end of the light irradiation part so that the light irradiation part cauterizes the biotissue A peeling unit for contacting the living tissue and peeling the living tissue;
Lt; / RTI >
Wherein the peeling section is slid into the main body so that the distance between the distal end of the light irradiation section and the distal end of the peeling section is adjusted.

The method according to claim 1,
The light-
A medical handpiece comprising an optical fiber for transmitting the laser light emitted from a light source.

The method of claim 2,
The light-
Further comprising: an insertion tube formed in a hollow tube shape and into which the optical fiber is inserted.

The method according to claim 1,
Wherein a wavelength of the laser light is variable.

The method according to claim 1,
Wherein a focal distance from one end of the main body to a focal point at which the laser light is focused and a length from one end of the main body to a distal end of the peeling portion correspond to each other.

delete

The method according to claim 1,
Wherein the peeled portion is formed of steel or titanium.

The method according to claim 1,
The peeling section
And a cauterizing electrode disposed at the distal end and electrically heated to cauterize the living body tissue.

The method according to claim 1,
And the peeling section is rotated about the light irradiation section.