KR102205320B1 - Endoscopic surgical trocar capable of maintaining the cleanliness of the endoscopic lens through the vortex supply of the cleaning agent - Google Patents

Abstract

The present invention relates to a trocar for endoscopic surgery, wherein the housing is supplied with a cleaning agent from the outside; A bushing portion extending to one side of the housing to a predetermined length, inserting the endoscope to be slidably movable therein, and providing a moving path through which the detergent introduced from the housing can flow; And a vortex generation unit having one end connected to the front end of the bushing unit and having a ramp provided in an obliquely inclined shape on the inner surface to form a vortex in the cleaning agent introduced from the moving path and discharge it to the other end; The cleaning agent flowing along the slope is discharged in a vortex form toward the inside through the ramp.

Description

Endoscopic surgical trocar capable of maintaining the cleanliness of the endoscopic lens through the vortex supply of the cleaning agent}

The present invention relates to a trocar for endoscopic surgery, and more particularly, provides a passage through which an endoscope can be inserted into the human body for surgery, and cleansing the endoscope lens by spraying a cleaning agent that forms a vortex on the image lens at the end of the endoscope. It relates to a trocar for endoscopic surgery that can maintain.

In general, unlike conventional open surgery, laparoscopic surgery uses a laparoscopic trocar (trocar) to form a micro incision in the patient's abdomen and at the same time insert the trocar into the abdomen, and then gas is injected into the body. By blowing and creating reliefs, the surgical space is secured. After securing the surgical space by gas injection, various surgical instruments such as an endoscope are inserted into the surgical site in the abdominal cavity using the internal passage of the trocar, and then the surgery is performed using various surgical tools while observing the surgical site through the endoscope. Is done.

Laparoscopic surgery using such laparoscopic trocars, endoscopes, and surgical tools includes an endoscope after forming a small incision on the abdominal surface without making an incision during various organ operations as described above, and inserting the trocar into the incision. Ham Since the operation is performed by inserting various surgical instruments, the operation time is short, and the inside of the abdominal cavity is not in contact with external air, so there is a hygienic advantage.

However, the endoscope that is inserted into the human body and photographs the surgical site through an image lens at the end has a problem that fogging occurs frequently in the endoscope lens due to temperature, humidity, and smoke generated during the procedure. If contamination occurs on the endoscope lens, it is difficult to secure the field of view at the surgical site.Therefore, the operation of wiping the endoscope lens is performed while the endoscope is removed from the outside from time to time during surgery, and this process increases the operation time. There is this.

On the other hand, referring to the existing Korean Patent Registration No. 10-1544714 (Laparoscopic Contamination Prevention Device), a tube-shaped insertion portion surrounding and surrounding the insertion tube of the laparoscope and a cap formed at the tip of the insertion portion to surround the tip of the laparoscope In the state of including the part, the cleaning is performed by changing the direction of the air or washing liquid discharged through the nozzle hole through a reflective plate of a certain size disposed at the tip of the nozzle part of the cap part and inducing it to flow to the binary optical window of the cap part. do.

(Patent Document 1) KR Registered Patent No. 10-1544714 (2015.08.10.)

(Patent Document 2) KR Registered Patent No. 10-0659669 (2006.12.13.)

The present invention was conceived to solve the above problems, and an object of the present invention is to provide a passage through which an endoscope can be inserted into the human body for surgery, and by spraying a cleaning agent that forms a vortex into an image lens at the end of the endoscope, the endoscope It is to provide a trocar for endoscopic surgery that can keep the lens clean.

Another object of the present invention is to provide a trocar for endoscopic surgery whose length can be adjusted according to the depth of the endoscope inserted into the human body.

Meanwhile, other objects not specified in the present invention will be additionally considered within a range that can be easily inferred from the detailed description and effects thereof to be described later.

The trocar for endoscopic surgery according to the present invention conceived to solve the problem as described above includes a housing in which a cleaning agent is supplied from the outside; A bushing portion extending to one side of the housing to a predetermined length, inserting the endoscope to be slidably movable therein, and providing a moving path through which the detergent introduced from the housing can flow; And a vortex generation unit having one end connected to the front end of the bushing unit and provided in an obliquely inclined shape on the inner surface thereof to form a vortex in the cleaning agent introduced from the moving path and discharge it to the other end.

Here, the movement path is formed between support walls protruding from the inner surface of the bushing part, and the support wall is formed to be obliquely inclined along the longitudinal direction on the inner surface of the transparent part, and the vortex flows in the cleaning agent discharged along the movement path. Can be formed.

Here, the vortex generation unit may be provided in a form where one end is connected to the front end of the bushing unit and the other end is curved toward the inner center.

Here, the length of the bushing part may be expanded or contracted.

The trocar for endoscopic surgery according to the present invention provides a passage through which the endoscope can be inserted into the human body while being inserted into the incision for laparoscopic surgery in a form that has a penetrating inside thereof, and the detergent supplied from the housing passes through the trocar. When injected into the vortex generation unit, the detergent is injected in the form of a vortex at the front end of the endoscope located adjacent to the vortex generation unit to cleanly clean the front end of the endoscope.Therefore, the lens at the end of the endoscope is always kept clean and the view through the lens It has the advantage of being secured smoothly.

1 is a side view of a trocar for endoscopic surgery according to an embodiment of the present invention.
Figure 2 (a) and (b) is a cross-sectional view of a trocar for endoscopic surgery according to an embodiment of the present invention.
3 is a perspective view of a trocar for endoscopic surgery according to another embodiment of the present invention.
Figure 4 is a partial cut perspective view of a trocar for endoscopic surgery according to another embodiment of the present invention.
Figure 5 (a) is a perspective view of a vortex generation unit according to another embodiment of the present invention, (b) is a rear view of the vortex generation unit according to another embodiment of the present invention.
6 (a) and (b) are views showing the stretching action of the trocar according to an embodiment and another embodiment of the present invention.
7 is a view showing a state in which the detergent is discharged in the form of a vortex from the trocar for endoscopic surgery according to one embodiment and another embodiment of the present invention.

Objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings. In addition, the terms used are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user operator. Therefore, definitions of these terms should be made based on the contents of the present specification.

Hereinafter, referring to FIGS. 1, 2 and 4, the trocar 100 for endoscopic surgery according to an embodiment of the present invention includes a housing 110 supplied with a detergent from the outside, and an endoscope (not shown) inside. ) Is inserted so as to be slidably moved, and one end is connected to the front end of the bushing unit 120 and the bushing unit 120 provided with a moving path 122 through which the detergent introduced from the housing 110 can flow. It includes a vortex generation unit 130 provided with an inclined groove 132 inclined at an angle to the side.

In the trocar 100 for endoscopic surgery according to an embodiment of the present invention having such a configuration, the cleaning agent introduced from the trocar 120 is discharged to the outside through the ramp 132 of the vortex generation unit 130. At the time, since a vortex is formed and discharged in the cleaning agent along the slope of the ramp 132, the lens at the front end of the endoscope inserted into the bushing portion 120 is easily cleaned. In addition, the cleaning agent moving along the bushing unit 120 may be delivered to the vortex generation unit 130 in a state in which a vortex is formed from the bushing unit 120, and in this case, the cleaning agent sprayed to the vortex generation unit 130 Since the vortex action of the endoscope is further increased, the cleaning action of the endoscope lens becomes easier.

The housing 110 is provided in a form through which the inside is penetrated, and the endoscope 10 is inserted and passed through the inside. A tubular inlet 112 is provided on the outer peripheral surface of the housing 110. The cleaning agent introduced through the inlet 112 is supplied into the housing 110. The cleaning agent supplied into the housing 110 flows along the inside of the bushing 120 connected to the front end of the housing 110.

At this time, the detergent is sprayed onto the lens (not shown) of the endoscope 10 to clean foreign substances, etc. Both liquid and gas may be used. The cleaning agent is preferably a cleaning gas in the form of a gas, and most preferably, carbon dioxide gas (CO ₂ gas) is used.

The bushing portion 120 is mounted on the front end of the housing 110 and has a predetermined length. The bushing portion 120 is formed in a form in which the inside is empty and both ends are open in a through shape. An endoscope is inserted into the trocar 120 so as to be slidable. The inside of the bushing unit 120 is connected to the interior of the housing 110 to supply the cleaning agent introduced into the housing 110, and the supplied cleaning agent moves toward the front end direction of the bushing unit 120.

At this time, the cleaning agent supplied to the bushing portion 120 moves along the moving path 122 formed on the inner surface of the bushing portion 120. Movement path 122 may be provided in various forms, as shown in Figure 2 (a) and spaced apart from the inner surface of the bushing 120 at a predetermined interval and between the inner tube 121 into which the endoscope is movably inserted. The space may be the moving path 122. In addition, a moving path 122 may be formed between the support walls 124 protruding from the inner surface of the bushing unit 120 and in contact with the outer surface of the inner tube 121.

In the moving path 122 formed between the support walls 124, a method of moving the cleaning agent may vary depending on the shape of the support wall 124. For example, as shown in FIG. 5, if the moving path 122 is formed between the support walls 124 protruding in a straight line along the longitudinal direction at a certain interval around the inner surface of the bushing unit 120, the movement of the straight line The cleaning agent may be discharged by moving in a straight line along the furnace 122. On the other hand, if the moving path 122 is formed between the support walls 124 protruding in a spiral shape obliquely inclined along the inner circumference of the bushing unit 120 as shown in FIG. 2B, Since the cleaning agent rotates and moves along the inclined movement path 122, when discharged to the front end of the bushing portion 120, it may be sprayed with a vortex formed.

In addition, in one embodiment, the inner tube 121 is provided inside the bushing unit 120, and the moving path 122 is provided between the inner surface of the bushing unit 120 and the outer surface of the inner tube 121 However, it is not limiting. For example, in a state in which the inner tube 121 is not provided inside the bushing part 120, the supporting wall 124 protrudes from the inner side of the bushing part 120, and at the end of the supporting wall 124 The outer surface of the endoscope may directly contact and be inserted to be movable. At this time, since the support walls 124 are blocked by the outer surface of the endoscope, the moving path 122 formed between the support walls 124 is provided in the form of a passage with all the outer sides blocked. In this case, it will be natural that the spraying form of the cleaning agent passing through the moving path 122 may be varied according to the installation form of the support wall 124 described above.

In addition, a fixing means 125 for limiting and fixing the movement of the endoscope may be further provided inside the trocar 120. In this case, the fixing means 125 may have a different shape depending on the presence or absence of the inner tube 121. For example, in a state in which the inner tube 121 is provided, the endoscope moves along the inner tube 121 so that it may protrude in the form of a protrusion at the front end of the inner tube 121, and the inner tube 121 is When not provided, the fixing means 125 may be provided at the front end of the support wall 124. The fixing means 125 is a form protruding inward from the front end of the support wall 124, and serves to limit the movement of the front end of the endoscope that has moved along the support wall 124 and at the same time fix the position of the endoscope. Perform.

As described above, the detergent introduced from the bushing unit 120 into which the endoscope is inserted moves in a straight or spiral shape along the moving path 122 of the bushing unit 120, and the front end of the bushing unit 120 It is transmitted to the vortex generation unit 130 connected to. At this time, if the moving path 122 of the bushing unit 120 is provided in a spiral shape, the cleaning agent flowing into the vortex generation unit 130 is helically moved from the bushing unit 120 to be supplied in a state in which a vortex is formed. I can.

In addition, in an embodiment according to the present invention, as the front end of the general endoscope is manufactured in an obliquely inclined form, the shear of the bushing portion 120 to which the endoscope is fastened is also illustrated in an obliquely inclined state, but is not intended to limit this. The shear angle of the bushing unit 120 may also be varied according to the shear angle of the generally used endoscope.

Referring to FIG. 6, the length of the bushing unit 120 according to the present embodiment may be changed to be stretchable. The bushing 120 includes a first pipe portion 120a connected to the housing 110 and a second pipe portion 120b slidably fastened to the inside of the first pipe portion 120a.

Although not shown in detail in the present embodiment, a sliding groove in the form of a groove is provided on the inner surface of the first pipe portion 120a, and a sliding groove of the first pipe portion 120a is provided at the rear end of the outer surface of the second pipe portion 120a. A sliding protrusion that is inserted and moved may be provided. The second pipe portion 120b operates to smoothly slide from the inside of the first pipe portion 120a by using a sliding protrusion and a sliding groove while being fastened to the inside of the first pipe portion 120a. Meanwhile, a support wall 124 and a moving path 122 are provided on the inner surface of the second pipe part 120b, and the second pipe part 120b is a spring so that it is continuously moved and inserted in the inner direction of the first pipe part 120a. It may be elastically supported by an elastic body such as.

When the second tube portion 120b is not in use, the overall length of the bushing tube 120 is shortened as it is pulled and inserted into the first tube portion 120a by an elastic body. On the other hand, when the endoscope is fastened to the trocar part 120, the front end of the endoscope is caught and fixed by the fixing means 125 provided at the front end of the second tube part 120b, so the insertion depth of the endoscope inserted into the trocar part 120 Accordingly, the second tube portion 120b protrudes to the outside of the first tube portion 120a to increase the overall length of the bushing portion 120. That is, the overall length of the trocar portion 120 is varied according to the depth of the endoscope inserted into the trocar portion 120.

Referring to Figures 1 and 2, the vortex generation unit 130 according to an embodiment of the present invention has one end connected to the front end of the bushing unit 120, and is inclined obliquely along the inner circumference ( 132). The cleaning agent moving through the bushing unit 120 forms a vortex while rotating along the slope 132 of the vortex generation unit 130 and is discharged to the other end. On the other hand, in an embodiment of the present invention, the vortex generation unit 130 is shown as each object that is separated and coupled to the bushing unit 130, but is not limited thereto, and the bushing unit 120 and the vortex generation unit ( 130) may be manufactured as an integral type.

The vortex generation unit 130 has a shape of a tube in which a hole is formed in the center as a whole. A ramp 132 is provided on the inner surface of the vortex generation unit 130 as described above, and the ramp 132 is between the inclined walls 134 protruding obliquely from the inner surface of the vortex generation unit 130 Is formed in A plurality of inclined walls 134 may be provided along the inner circumference of the vortex generation unit 130 at regular intervals. It is preferable that the ramp 132 of the vortex generation unit 130 is provided so as to be connected to the moving path 122 of the bushing unit 120.

From now on, with reference to FIGS. 3 to 5, the configuration and operation of the trocar for endoscopic surgery according to another embodiment of the present invention will be described.

Hereinafter, a description of the configuration and operation of the housing 110 and the bushing 120 having the same configuration and operation in the embodiment and the other embodiment described above will be briefly described or omitted, and vortices having different configurations Only the description of the generation unit 130 ′ will be described.

3 to 5, the trocar 100 ′ for endoscopic surgery according to another embodiment of the present invention includes a housing 110 supplied with a detergent from the outside, and an endoscope (not shown) slides inside. The bushing 120 is inserted into the housing 110 and provided with a moving path 122 through which the detergent introduced from the housing 110 flows, and one end is connected to the front end of the bushing 120 and the other end is the inner center It includes a vortex generation unit 130 ′ that is curved toward and is provided with a groove-shaped ramp 132 ′ inclined at an angle on the inner surface thereof.

In more detail, the vortex generation unit 130 ′ is made in the form of a tube having a hole formed therein as a whole. The vortex generation unit 130 ′ is provided with one end connected to the front end of the bushing unit 120 and the other end curved to be curved toward the inner center. In addition, in the present embodiment, the vortex generation unit 130 ′ is shown as each object that is separated and coupled to the bushing unit 120, but is not limited thereto, and the bushing unit 120 and the vortex generation unit 130 ′ ) May be manufactured as an integral type.

A groove-shaped ramp 132 ′ is provided on the inner surface of the vortex generation unit 130 ′. The inclined path 132 ′ is formed between the inclined walls 134 ′ protruding from the inner surface of the vortex generation unit 130 ′ in an obliquely inclined form. A plurality of ramps 132 ′ are provided along the inner surface of the vortex generation unit 130 ′, and in a state in which the vortex generation unit 130 ′ is connected to the bushing unit 120, the ramp 132 ′ is the bushing unit 120 It is preferable that it is provided to be connected to each of the plurality of moving paths 122 formed on the inner surface of the.

The trocars 100 and 100 ′ for endoscopic surgery according to one embodiment and another embodiment of the present invention clean the front end of the endoscope using a detergent sprayed in a vortex form through the vortex generation units 130 and 130 ′. By zooming, the camera lens disposed at the front end of the endoscope is kept clean, so that it is easy to secure a field of view of the surgical site. Specifically, in a state in which the endoscope is inserted into the trocar portion 120, the front end of the endoscope is fixed to the front end portion of the trocar portion 120 by the fixing means 125 as described above. When the cleaning agent is supplied to the housing 110 while the position of the endoscope is fixed to the bushing part 120, the cleaning agent moves to the front end of the bushing part 120 along the moving path 122 inside the bushing part 120. Is done. At this time, depending on the shape of the moving path 122 of the bushing part 120, the cleaning agent may move in a straight line or may move in a state in which a vortex is formed while rotating.

The cleaning agent flowing along the moving path 122 of the bushing unit 120 flows into the ramps 132 and 132 ′ of the vortex generation units 130 and 130 ′ connected to the front end of the bushing unit 120 and generates vortex The cleaning agent is sprayed toward the outside of the vortex generation units 130 and 130 ′ in a state in which a vortex is formed through the grooves 132 and 132 ′ inclined at an angle from the inner surfaces of the parts 130 and 130 ′. Since the detergent discharged from the front end of the vortex generation unit 130 and 130 ′ in the state in which the vortex is formed is sprayed onto the endoscope lens inserted in the bushing unit 120, the lens can be kept clean at all times by cleaning the endoscope lens. Has an advantage.

On the other hand, as in the other embodiment of the present invention, when the other end of the vortex generation unit 130 ′ is curved toward the inner surface, the cleaning agent is applied from the inner surface of the vortex generation unit 130 ′. After being injected in a state in which a vortex is formed toward the inner center by a slope 132 ′ inclined toward the center, it is discharged to the outside of the vortex generation unit 130 ′. At this time, since the front end of the bushing unit 120 is located very adjacent to the inner slope 132 ′ of the vortex generation unit 130 ′, and the front end of the endoscope is located at the front end of the bushing unit 120, vortex generation The cleaning agent sprayed from the part 130` toward the inner central part in the form of a vortex is more easily ejected to the front end of the endoscope so that the lens of the endoscope can be cleaned more easily, thereby keeping the endoscope lens clean at all times to maintain the lens. It has the effect of smoothly securing vision through it.

In the above, for the purpose of describing the configuration and operation of the present invention, it has been described by dividing it into one embodiment and another embodiment, but this is only a division for describing various embodiments of the invention, and it is intended to distinguish the differences of the invention according to the embodiments. no.

In addition, terms such as "include", "consist of", or "have" described above mean that the corresponding component may be included unless otherwise stated, excluding other components It should not be construed as being capable of further including other components. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms generally used, such as terms defined in the dictionary, should be interpreted as being consistent with the meaning of the context of the related technology, and are not interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

10: Endoscopy 100, 100`: trocar for endoscopic surgery
110: housing 120: bushing
132: Idong-ro 130, 130`: vortex generation unit
132, 132`: slope

Claims (7)

A housing to which a cleaning agent is supplied from the outside;
A bushing portion extending to one side of the housing to a predetermined length, inserting the endoscope to be slidably movable therein, and providing a moving path through which the detergent introduced from the housing can flow; And
A vortex generation unit having one end connected to the front end of the bushing unit and having an inclined slope formed on the inner surface of the tube to form a vortex in the cleaning agent introduced from the moving path and discharge it to the other end; and
The ramp is provided between the inclined walls protruding from the inner surface of the vortex generation unit in a shape that is obliquely inclined in the longitudinal direction of the vortex generation unit
The detergent introduced into the vortex generation unit from the movement path is a trocar for endoscopic surgery that forms a vortex while the path is changed by an inclined wall forming a ramp.
The method of claim 1,
The trocar for endoscopic surgery, characterized in that the movement path is formed between the support wall protruding from the inner surface of the trocar.
The method of claim 2,
The support wall is formed to be obliquely inclined along the longitudinal direction on the inner surface of the trocar to form a vortex in the cleaning agent discharged along the movement path.
The method according to any one of claims 1 to 3,
The eddy current generation unit,
Endoscopic surgery trocar, characterized in that one end is connected to the front end of the trocar and the other end is curved toward the inner center.
The method of claim 4,
The endoscope is a trocar for endoscopic surgery, characterized in that inserted into the trocar in a state in which the outer surface is in contact with the support wall.
The method of claim 5,
A trocar for endoscopic surgery, characterized in that a fixing means for limiting the movement of the endoscope is provided at the front end of the support wall.
The method of claim 1,
The trocar for endoscopic surgery, characterized in that the length of the trocar is stretched.

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