KR101347812B1 - Troca assembly - Google Patents

Abstract

A trocar assembly with improved convenience of the procedure is disclosed. Trocar assembly with improved convenience of the procedure of the present invention, a hollow cylindrical sleeve is inserted into the body through the navel or skin incision of the patient; A main body connected to the upper end of the sleeve exposed to the outside so that the laparoscopic surgical instrument may be inserted and disposed through the sleeve; And a centerline of the sleeve interposed between the sleeve and the main body to substantially increase the tiltable angle of the laparoscopic surgical instrument inserted obliquely or to horizontally move the laparoscopic surgical instrument inserted vertically with a small force. And a middle adapter connecting the sleeve and the body so as to be eccentric therefrom. According to the present invention, it is possible to provide a trocar assembly which can substantially improve the working convenience of a laparoscopic surgical instrument inserted through a body and a sleeve.

Description

Troca assembly

The present invention relates to a trocar assembly, and more particularly, to a trocar assembly capable of substantially improving the working convenience of a laparoscopic surgical instrument inserted through a body and a sleeve.

In general, unlike conventional open surgery, the laparotomy is being performed to minimize the incision of the skin and to restore the patient's speed.

This laparoscopic operation is a surgical procedure performed by observing the operation site of the abdominal cavity by making a tube through the abdomen of the patient using a surgical apparatus called a trocar (Trocar) and introducing a surgical instrument such as an endoscope into a surgical site in the abdominal cavity, , Biliary stones removal, head protrusion, general surgery and so on.

Here, Trocar refers to a medical instrument used to access the abdominal cavity. The trocar includes a sleeve inserted and fixed into the body through a navel or a skin incision of the patient, and a sleeve inserted through the sleeve to insert a laparoscopic surgical instrument And a body coupled to an upper end of the externally exposed sleeve.

FIG. 1 is a perspective view of a conventional trocar, and FIG. 2 is a schematic diagram showing the principle of performing laparoscopic surgery using the trocar of FIG. 1.

1 and 2, in order to proceed with laparoscopic surgery, the skin S is first incised, the sleeve 10 is disposed through the cut skin S, and the main body (outside the skin S) is disposed. 20) to project out. Then, the laparoscopic surgical instrument 30 is inserted through the main body 20 and the sleeve 10, and the laparoscopic surgery is performed by the operator operating the inserted laparoscopic surgical instrument 30 from the outside.

However, since the conventional trocar 1 is integrally coupled so that the main body 20 and the sleeve 10 form one body, when the laparoscopic surgical instrument 30 is disposed to be inclined, the laparoscopic surgical instrument ( There is a problem that the inclination possible angle of 30 is very limited.

In other words, it is important to reduce the number of incisions on the skin (S) for post-treatment after surgery, so that the process of manipulating the laparoscopic surgical instruments inclined as necessary and then manipulating them is required. Since the main body 20 and the sleeve 10 are provided as one body, the problem that the inclination angle of the laparoscopic surgical instrument becomes very narrow is generated.

In addition, a valve 21 having a constant elastic force is provided inside the main body 20 to prevent the gas injected into the abdominal cavity from leaking to the outside. The conventional trocar 1 includes the main body 20 and the sleeve ( Due to the property that 10) is provided as one body, the operator has to apply a force exceeding the elastic force of the valve 21 in order to horizontally move the laparoscopic surgical instrument 30, which requires a lot of force.

Therefore, it is necessary to research and develop a trocar structure for smoothly inserting or moving the laparoscopic surgical instrument.

Republic of Korea Patent Publication No. 10-2011-0127563

It is an object of the present invention to provide a trocar assembly capable of substantially improving the working convenience of a laparoscopic surgical instrument inserted through a body and a sleeve.

The object is, according to the present invention, a hollow cylindrical sleeve inserted into the body through the navel or skin incision of the patient; A main body connected to an upper end of the sleeve exposed to the outside so that the laparoscopic surgical instrument may be inserted and disposed through the sleeve; And interposed between the sleeve and the main body to substantially increase the tiltable angle of the laparoscopic surgical instrument inserted at an angle or to horizontally move the laparoscopic surgical instrument inserted vertically with a small force. Convenience of the procedure is achieved by a trocar assembly which comprises a middle adapter connecting the sleeve and the body such that a centerline can be eccentric from the centerline of the sleeve.

The middle adapter may be connected to the upper end of the sleeve and the lower end of the main body so as to be relatively movable in the horizontal direction within a predetermined distance range with respect to the sleeve and the main body, respectively.

The middle adapter may include an adapter body disposed between an upper end of the sleeve and a lower end of the body; A first connector extending and bent upwardly of the adapter body to form a first space therein for connecting the lower end of the main body; And a second connector extending and bent downward of the adapter body to form a second space therein for connecting an upper end of the sleeve.

The main body may include a first insertion part protruding inward from a lower end part and inserted into the first space.

The sleeve may include a second inserting portion protruding inward from an upper end portion and inserted into the second space.

The middle adapter may be relative to the body and the sleeve in the horizontal direction in the range of 1.5 mm to 4.5 mm, respectively.

The main body may include a main body housing in which the first insertion part is provided; A lip valve which is opened when the laparoscopic surgical instrument is inserted and is inserted into the body housing to be closed when the laparoscopic surgical instrument is separated; A gas sealing valve disposed above the lip valve to prevent the gas injected into the body from leaking to the outside when the lip valve is opened according to the insertion of the laparoscopic surgical instrument; And a lip interposed between the lip valve and the gas sealing valve so as to minimize the insertion resistance generated when the laparoscopic surgical instrument is inserted, while preventing the lip valve from being damaged by the end of the laparoscopic surgical instrument. It may include a valve protection unit.

The lip valve protection unit may include a hollow disk-shaped coupling frame having a predetermined thickness and coupled to an upper side of the lip valve; And a plurality of protection legs having one end fixed to an inner circumferential surface of the coupling frame and the other end extending downward toward the lip valve side, wherein the plurality of protection legs are coupled to each other so that an anti-slit slit is formed therebetween. The inner circumferential surface of the frame may be spaced apart from each other at regular intervals.

The protective leg is gradually widened in the direction toward the lip valve side so that the area of the portion where the end of the instrument first contacts when the laparoscopic surgical instrument is inserted, while the insertion resistance generated by the insertion progress is minimized A leg body provided to be narrow; And it may include a shape maintenance protrusion having a thickness greater than the thickness of the leg body is bent extending from one end of the leg body to prevent the leg body from being curled up when the separation of the laparoscopic surgical instruments.

The main body is a gas disposed on the upper side of the gas sealing valve so as to prevent the gas sealing valve from being damaged by the end of the laparoscopic surgical instrument while minimizing the insertion resistance generated when the laparoscopic surgical instrument is inserted It may further include a closed valve protection unit.

The gas tight valve protection unit may include a hollow disk-shaped hoop frame having a predetermined thickness and disposed above the gas tight valve; And one end may be fixed to the inner circumferential surface of the hoop frame may include a plurality of wings provided to be folded laterally and at the same time deformed downward when the laparoscopic surgical instrument is inserted.

According to the present invention, it is possible to provide a trocar assembly capable of substantially improving the working convenience of a laparoscopic surgical instrument inserted through the body and the sleeve, including a middle adapter connecting the sleeve and the body.

1 is a perspective view of a conventional trocar.
FIG. 2 is a schematic diagram showing the principle of performing laparoscopic surgery using the trocar of FIG. 1.
Figure 3 is a perspective view of the combined trocar assembly improved convenience of the procedure according to an embodiment of the present invention.
4 is an exploded perspective view of the trocar assembly with improved convenience of the procedure of FIG. 3.
5 is a perspective view of a lip valve of the trocar assembly main body of which the convenience of the procedure of FIG. 3 is improved.
6 is a perspective view of a lip valve protection unit of the trocar assembly body with improved convenience of the procedure of FIG.
7 is a perspective view of the gas tight valve protection unit of the trocar assembly main body of the convenience of the procedure of Figure 3 seen from the upper side.
Figure 8 is a perspective view of the gas tight valve protection unit of the trocar assembly main body of the improved convenience of the procedure of Figure 3 seen from the lower side.
9 is an enlarged cross-sectional view of a portion A of FIG. 3.
10 and 11 is a state diagram used in the trocar assembly with improved convenience of the procedure of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the well-known functions or constructions are not described in order to simplify the gist of the present invention.

Figure 3 is a combined perspective view of the trocar assembly with improved convenience of the procedure according to an embodiment of the present invention, Figure 4 is an exploded perspective view of the trocar assembly with improved convenience of the procedure of Figure 3, Figure 5 is the procedure of Figure 3 6 is a perspective view of a lip valve of the trocar assembly body with improved convenience, and FIG. 6 is a perspective view of a lip valve protection unit of the trocar assembly body with improved convenience of the procedure of FIG. 3, and FIG. 7 is a view of the procedure of FIG. 8 is a perspective view of the gas tight valve protection unit of the trocar assembly body with improved convenience, and FIG. 8 is a perspective view of the gas tight valve protection unit of the trocar assembly body with improved convenience of the procedure of FIG. This is an enlarged cross section of part A of.

Referring to these drawings, according to one embodiment of the present invention, the trocar assembly (100, hereinafter referred to as "trocar assembly 100") with improved convenience of a hollow cylinder-shaped sleeve 110 and a sleeve ( It includes a main body 130 connected to the upper end of the 110, and the middle adapter 170 to interconnect the sleeve 110 and the main body 130.

The sleeve 110 is configured to be inserted through and fixed to the body through the navel or skin incision of the patient so that the laparoscopic surgical instrument I inserted through the body 120 can be disposed therethrough.

As shown in Figure 3 and 4, the sleeve 110 of the present embodiment is provided so that the thread (110a) is formed in a portion on the outer peripheral surface of the hollow cylindrical shape. The thread 110a is continuously formed along the circumference of the body so that the sleeve 110 can be inserted into the body while turning itself.

In addition, the threaded thread (110a) is formed of a double wire (two-wire or three-wire screw) so that the sleeve can be inserted with only a small number of rotations when the sleeve 110 is inserted by turning the sleeve (110).

The conventional sleeve is manufactured by a method such as providing a protrusion on the outer circumferential surface to have a constant fixed force in a state in which the outer circumferential surface has a smooth hollow cylindrical shape or inserted into the body, such a conventional sleeve is the convenience of insertion or firmness of fixing There was a problem in that only the pursuit of the mere aim of the convenience of the insertion and the firmness of the fixing at the same time.

In this embodiment, the thread 110a is formed on the outer circumferential surface of the sleeve 110 so that the thread 110a can be easily inserted into the patient's body according to the method of rotating the sleeve 110, and the sleeve 110 is fixed by the fixing force of the thread 110a. After the insertion of the 110 is completed, even when the laparoscopic surgical instrument I is inserted along the thin abdominal wall or when the instrument is removed from the abdominal wall, the sleeve 110 may not be detached.

Of course, according to another embodiment of the present invention, the thread 110a may be formed over the entire body of the sleeve 110 or may not be formed in the body.

The main body 130 is configured to be coupled to an upper end portion of the sleeve 110 that is exposed to the outside so that the laparoscopy instrument I may be inserted and disposed through the sleeve 110.

3 and 4, the main body 130 is disposed above the main body housing 131, the lip valve 132 inserted into the main body housing 131, and the lip valve 132. The gas sealing valve 140, the lip valve protection unit 150 interposed between the lip valve 132 and the gas sealing valve 140, and the gas sealing valve protection unit disposed above the gas sealing valve 140. 160.

The main body housing 131 is a configuration that forms a frame of the main body 130 so that a configuration such as the lip valve 132 can be inserted therein. The configuration of the lip valve 132 constituting the main body 130 and the like is fixed inside the main body 130 by covering the cover C after being disposed inside the main body housing 131.

The lip valve 132 is open when the laparoscopic surgical instrument I is inserted and closed when the laparoscopic surgical instrument I is completed, thereby preventing the gas injected into the body from leaking to the outside. To this end, the lip valve 132 is provided with a material such as silicon having its own elastic force, and the incision line CL is formed below the lip valve 132. Of course, unlike shown in Figure 5, the lip valve 132 may be a lip valve 132 having an I-shaped cut line.

The gas sealing valve 140 is configured to prevent the gas injected into the body from leaking to the outside when the lip valve 132 is opened according to the insertion of the laparoscopic surgical instrument I. That is, even when the lip valve 132 is opened by the gas sealing valve 140 provided to be in close contact with the outer circumferential surface of the inserted laparoscopic surgical instrument I, the gas injected into the patient's body may not leak to the outside. . Gas-tight valve 140 is provided with a silicon material similar to the lip valve 132.

The lip valve protection unit 150 includes a lip valve 132 and a gas tight valve 140 to prevent the lip valve 132 from being damaged by the sharp end of the surgical instrument when the laparoscopic surgical instrument I is inserted. It is a structure interposed between.

As shown in FIGS. 4 and 6, the lip valve protection unit 150 has a hollow disk-shaped coupling frame 151, one end of which is fixed to an inner circumferential surface of the coupling frame 151, and the other end of the lip valve protection unit 132. A plurality of protective legs 152 extending toward the side.

Coupling frame 151 is configured to be fixedly coupled to the upper side of the lip valve 132 is formed with a plurality of coupling grooves (151a) spaced apart from each other along a peripheral circumference. Correspondingly, a plurality of coupling protrusions 132a are formed along the upper circumference of the lip valve 132.

In addition, each of the coupling protrusions 132a and the coupling groove 151a has a protection leg 152 at the protrusion P inside the lip valve 132 when the lip valve protection unit 150 is coupled to the lip valve 132. Are each arranged so as to take into account that the insertion of the laparoscopic surgical instrument (I) is more likely to come into contact with the protruding portion (P) inside the lip valve (132).

That is, when the end of the instrument comes into contact with the protruding portion P inside the lip valve 132 when the laparoscopic surgical instrument I is inserted, it is more likely that the lip valve 132 of silicon material is damaged. The protective leg 152 of the lip valve protection unit 150 is disposed to cover P).

On the other hand, the protective leg 152 is configured so that one end is fixed to the inner peripheral surface of the coupling frame 151 and the other end extends downward toward the lip valve 132 side.

In the present exemplary embodiment, four protection legs 152 are provided so that each of the protection legs 152 is spaced apart from each other by a predetermined interval, and thus, the resistance prevention slits 152a are formed between the protection legs 152. In other words, the four protective legs 152 are not connected to each other but are provided to be completely separated by the resistive slit 152a.

The reason why the four anti-slit slits 152a are formed between the four protective legs 152 is to minimize the insertion resistance generated from the lip valve protection unit 150 when the laparoscopic surgical instrument I is inserted. To do this.

That is, since the lip valve protection unit 150 is separately disposed on the upper side of the lip valve 132, there may be a problem that the insertion does not proceed smoothly when the laparoscopic surgical instrument I is inserted. Providing an anti-slit slit 152a to enable.

When the laparoscopic surgical instrument (I) is inserted according to the presence of the anti-slit slit 152a, the four protective legs 152 can be smoothly opened even without requiring great force, thereby lowering the insertion resistance. Will be.

As shown in FIG. 6, the protective leg 152 includes a trapezoidal leg body 153 and a shape retaining protrusion 154 extending from one end of the leg body 153.

The leg body 153 is gradually wider toward the lip valve 132 side so as to widen the area of the portion where the end of the instrument first contacts when the laparoscopic surgical instrument I is inserted, while lowering the insertion resistance generated as the insertion proceeds. It is a structure provided so that it may become narrow.

That is, the leg body 153 is to reduce the risk of the end of the instrument directly contact the lip valve 132 by widening the area of the first contact portion of the laparoscopic surgical instrument (I) for the first time, the laparoscopic inserted to some extent Considering that the surgical instrument I is guided by the leg body 153 toward the central side of the lip valve 132, the area of the portion adjacent to the lip valve 132 side is narrowed to lower the insertion resistance. will be.

According to the shape of the leg body 153, it is possible to lower the possibility that the lip valve 132 is broken and insertion resistance when the laparoscopic surgical instrument I is inserted.

The shape retaining protrusion 154 extends from one end of the leg body 153 to prevent the leg body 153 from being rolled up together with the laparoscopic surgical instrument I when the laparoscopic surgical instrument I is removed. The configuration is provided to have a thickness greater than the thickness of the leg body 153.

The leg body 153 is provided with a thin thin plate, and when the laparoscopic surgical instrument I is separated from the trocar, the leg body 153 may be rolled up in contact with the laparoscopic surgical instrument I. 154 is prepared to solve this problem.

That is, as shown in Figure 6, the shape maintaining protrusion 154 is provided with a thickness larger than the thickness of the leg body 153 is arranged to extend along the passage in which the laparoscopic surgical instrument (I) moves for laparoscopic surgery It is possible to effectively prevent the phenomenon that the leg body 153 rolls up when the mechanism I is removed.

On the other hand, the gas sealing valve protection unit 160 is disposed above the gas sealing valve 140 to prevent the gas sealing valve 140 from being damaged by the sharp end of the instrument when the laparoscopic surgical instrument (I) is inserted. It is a configuration.

As shown in FIGS. 4, 7 and 8, the gas tight valve protection unit 160 includes a hollow disk-shaped hoop frame 161 and a plurality of wing portions having one end fixed to an inner circumferential surface of the hoop frame 161. 163 and a plurality of protrusions 167 protruding from the hoop frame 161 between the plurality of wing portions 163.

The hoop frame 161 has a constant thickness and is disposed on the upper side of the gas sealing valve 140, and the wing portion 163 is provided so that one end is fixed to the inner circumferential surface of the hoop frame 161 and the other end extends toward the center. It is a configuration.

The wing part 163 of the present embodiment is provided such that the four wing parts 163 are spaced apart from each other along a circumference of the inner circumferential surface of the hoop frame 161.

Each wing 163 has a fixed portion 164 fixed to the inner circumferential surface of the hoop frame 161, a wing body 165 extending from the fixed portion 164 toward the center of the hoop frame 161, and a constant size. And an instrument contact portion 166 provided at one end of the wing body 165 to form the cutout region 166a.

The fixing part 164 is fixed to the upper end of the inner circumferential surface of the hoop frame 161 is provided to have a width narrower than the overall width of the wing body 165 to be described later. Adjusting the width of the fixing portion 164 as described above is to minimize the insertion resistance generated by the gas sealing valve protection unit 160 when the laparoscopic surgical instrument (I) is inserted by allowing the entire wing portion 163 to be easily folded. To do this.

The wing body 165 extends from one end of the fixing portion 164 toward the center of the hoop frame 161. As described above, the overall width of the wing body 165 is provided larger than the overall width of the fixing portion 164, which is the possibility that the end of the instrument contacts the gas tight valve 140 when the laparoscopic surgical instrument (I) is inserted To reduce the

That is, the width of the wing body 165 is formed to be wide enough to prevent the gas-tight valve 140 made of silicon from being damaged by the sharp end of the laparoscopy instrument I.

In addition, the wing body 165 is formed so as to form a first curved surface 165a which is concave toward one side of the gas tight valve 140 from one end of the fixing portion 164 and the surface adjacent to the center of the hoop frame 161 is opposed thereto. It is provided to be inclined slightly inward from the plane.

The purpose of providing the shape of the wing body 165 is to minimize the insertion resistance generated when the laparoscopic surgical instrument (I) is inserted.

That is, when the laparoscopic surgical instrument I is inserted according to the shape of the wing body 165, the wing body 165 is folded downward and simultaneously folded laterally, so that the laparoscopic surgical instrument I is smooth. It is possible to penetrate the gas sealing valve protection unit 160.

In other words, the wing body 165 of the present embodiment is not only folded in the vertical direction when the insertion and removal of the laparoscopic surgical instrument (I), but also folded in the lateral direction to lower the insertion resistance generated during insertion and removal of the instrument It can be.

The instrument contact portion 166 is configured to form a second curved surface 166b which is concave toward the center of the hoop frame 161 from the inner end of the wing body 165. The second curved surface 166b serves to help the wing body 165 to smoothly fold the deformation while allowing the laparoscopic surgical instrument I to penetrate the center of the hoop frame 161.

On one side of the instrument contact portion 166 is formed an incision region 166a cut out to form an arc toward the center of the hoop frame 161. The four incision regions 166a formed on the four instrument contacts 166 are formed together. Collected to form a circular through hole in the center of the hoop frame (161). Along the circular through hole, the laparoscopic surgical instrument I is a passage through which the laparoscopic surgical instrument I can be inserted or removed.

On the other hand, the protrusions 167 are configured to protrude from the inner circumferential surface of the hoop frame 161 so as to be adjacent to the wing portion 163 between the four wing portions 163. The protruding portion 167 is provided to cover a part of an area in which the wing portion 163 covering the hoop frame 161 is not provided, and serves to prevent the gas injected into the body from leaking to the outside.

In addition, when the gas sealing valve protection unit 160 is disposed to overlap two or more if necessary, the wing portion 163 and the protrusion 167 of each gas sealing valve protection unit 160 are arranged so as to cross each other. To prevent leakage more efficiently, the protrusion 167 serves to fill the empty space of the gas sealing valve protection unit 160 that the wing portion 163 does not cover to prevent the leakage of gas more efficiently To help.

Trocar head assembly 100 of the present embodiment is a lip valve protection unit 150 for protecting the lip valve 132 in the form of minimizing the insertion resistance generated when the laparoscopic surgical instrument (I) is inserted, and the gas tight valve By providing the gas sealing valve protection unit 160 to protect the 140, respectively, the lip valve 132 and the gas sealing valve 140 of the silicon material is effectively prevented from being damaged by the laparoscopic surgical instrument (I) end And through this has the advantage of improving the durability of the mechanism.

On the other hand, the middle adapter 170 is a configuration for interconnecting the sleeve 110 and the main body 130 so that the operator performing laparoscopic surgery can smoothly operate the laparoscopic surgical instrument (I).

That is, the middle adapter 170 when the laparoscopic surgical instrument (I) is inserted obliquely from the beginning or when the laparoscopic surgical instrument (I) already inserted is inclined or operated, or when the laparoscopic surgical instrument (I) is horizontally moved. To connect the sleeve 110 and the main body 130 so that the operator can easily perform such an operation process.

The middle adapter 170 may include an adapter body 171 disposed between an upper end of the sleeve 110 and a lower end of the body 130, a first connector 172 extending and bent upward of the adapter body 171, and an adapter. The second connector 173 extends bent downward of the body 171.

The adapter body 171 is configured to form a frame for disposing the first connector 172 and the second connector 173 and is disposed between the upper end of the sleeve 110 and the lower end of the body 130.

As shown in FIGS. 4 and 9, the adapter body 171 has a hollow cylindrical shape with a hollow inside so that the laparoscopic surgical instrument I can be inserted, and the width thereof is the upper end and the main body of the sleeve 110. It is manufactured to have a width slightly larger than or substantially the same as the lower end of 130).

The first connector 172 is configured to be bent from the adapter body 171 so that one end is fixed to the upper surface of the adapter body 171 and the other end has a '-' shape is formed inside the first space (S1) The second connector 173 is bent from the adapter body 171 so that one end thereof is fixed to the bottom surface of the adapter body 171 and the other end thereof has a '-' shape to form a second space S2 therein. It is a configuration.

The first insertion part 130a provided at the lower end of the main body 130 is inserted into the first space S1 to limit the movable range when the middle adapter 170 is horizontally moved. Similarly, the second insertion part 111 provided at the upper end of the sleeve 110 is inserted into the second space S2 to limit the movable range when the middle adapter 170 is horizontally moved.

The middle adapter 170 is connected to the main body 130 and the sleeve 110 by the first connector 172, the second connector 173, the first inserting portion 130a, and the second inserting portion 111. Each can be moved horizontally within the range of 1.5 mm to 4.5 mm.

That is, since the middle adapter 170 is provided so as to be able to move relative to the main body 130 and the sleeve 110 in the horizontal direction, respectively, the center line of the main body 130 may be eccentric from the center line of the sleeve 110. Accordingly, the laparoscopic surgical instrument I is inclined to be disposed, or the laparoscopic surgical instrument I can be moved horizontally with little force.

On the other hand, the middle adapter 170 of the present embodiment can move in the horizontal direction with respect to the main body 130 in the range of 1.5 mm to 4.5 mm, also in the horizontal direction with respect to the sleeve 110 in the range of 1.5 mm to 4.5 mm It is configured to be movable within, which is determined in consideration of the moving range of the laparoscopic surgical instrument (I) required.

That is, the movable range of the above-described middle adapter 170 takes into account the characteristics of laparoscopic surgery, and the operator freely opens the laparoscopic surgical instrument I inserted through the body 130 and the sleeve 110 with a small force. It can be adjusted to facilitate the convenience of laparoscopic surgery.

10 and 11 are state diagrams of the trocar assembly of FIG.

Referring to these drawings, in order to proceed with laparoscopic surgery using the trocar assembly 100 according to the present embodiment, the sleeve 110 is inserted into the body through the navel or the skin incision of the patient, and then to the outside of the body. The laparoscopic surgical instrument I is inserted through the protruding main body 130.

The laparoscopic surgical instrument I is inserted along a space formed through the body 130, the middle adapter 170 and the sleeve 110 so that one end thereof is positioned inside the patient's body.

Next, the practitioner proceeds with various medical activities in accordance with the purpose of laparoscopic surgery, in which case the laparoscopic surgical instrument (I) should be laid obliquely or moved horizontally to the fixed sleeve 110. According to the horizontal movement of the middle adapter 170 and the horizontal movement of the main body 130 with respect to the middle adapter 170, the treatment can be facilitated.

That is, the conventional trocar has a limitation on the angle at which the laparoscopic surgical instrument I can be tilted due to the nature in which the main body and the sleeve are integrally connected, and even when the laparoscopic surgical instrument I is moved horizontally. Since it is necessary to overcome the elastic force of the valve disposed in the somewhat more force it was difficult for the operator to finely adjust the laparoscopic surgical instrument (I), the trocar assembly 100 of the present embodiment to be horizontally movable mutually Due to the characteristics of the combined body 130, the middle adapter 170 and the sleeve 110, it is possible to increase the angle of inclination more than the conventional trocar and to horizontally move the laparoscopic surgical instrument I with a small force. Will be.

The trocar assembly 100 according to the present embodiment includes a middle adapter 170 connecting the sleeve 110 and the body 130 to be inserted through the body 130 and the sleeve 110. ) Has the advantage of substantially improving the working convenience.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious to those who have. Accordingly, it should be understood that such modifications or alterations should not be understood individually from the technical spirit and viewpoint of the present invention, and that modified embodiments fall within the scope of the claims of the present invention.

100: trocar assembly 110: sleeve
130: body 170: middle adapter

Claims (11)

A hollow cylindrical sleeve inserted into the body through the patient's navel or skin incision;
A main body connected to an upper end of the sleeve exposed to the outside so that the laparoscopic surgical instrument may be inserted and disposed through the sleeve; And
A centerline of the body interposed between the sleeve and the body to substantially increase the tiltable angle of the laparoscopic surgical instrument inserted at an angle or to horizontally move the laparoscopic surgical instrument inserted vertically with a small force A middle adapter connecting the sleeve and the body to be eccentric from the centerline of the sleeve,
The middle adapter,
An adapter body disposed between an upper end of the sleeve and a lower end of the body;
A first connector extending and bent upwardly of the adapter body to form a first space therein for connecting the lower end of the main body; And
It is made of a second connector which is bent downward of the adapter body to form a second space therein for connecting the upper end of the sleeve,
The main body includes:
A first insertion part protruding inward from a lower end part and inserted into the first space,
The sleeve
A second insertion portion protruding inward from the upper end portion and inserted into the second space is formed.
Characterized in that the middle adapter is movable relative to the sleeve and the main body in a horizontal direction within a predetermined distance range, respectively.
Trocar assembly with improved convenience. delete delete delete delete The method of claim 1,
The middle adapter, the trocar assembly with improved convenience of the procedure, characterized in that the relative movement in the horizontal direction in the range of 1.5 mm to 4.5 mm respectively with respect to the body and the sleeve. The method of claim 1,
The main body includes:
A main housing provided with the first insertion part;
A lip valve which is opened when the laparoscopic surgical instrument is inserted and is inserted into the body housing to be closed when the laparoscopic surgical instrument is separated;
A gas sealing valve disposed above the lip valve to prevent the gas injected into the body from leaking to the outside when the lip valve is opened according to the insertion of the laparoscopic surgical instrument; And
A lip valve interposed between the lip valve and the gas sealing valve so as to prevent the lip valve from being damaged by the end of the laparoscopic surgical instrument while minimizing the insertion resistance generated when the laparoscopic surgical instrument is inserted. Trocar assembly with improved convenience of the procedure characterized in that it comprises a protective unit. The method of claim 7, wherein
The lip valve protection unit,
A coupling frame having a hollow disk shape having a predetermined thickness and coupled to an upper side of the lip valve; And
One end is fixed to the inner peripheral surface of the coupling frame and the other end includes a plurality of protection legs extending downward toward the lip valve side,
The plurality of protection legs,
Trocar assembly with improved convenience of the procedure, characterized in that the anti-slit between each formed so as to be spaced apart at regular intervals along the circumference of the inner peripheral surface of the coupling frame. 9. The method of claim 8,
The protective leg,
Leg is provided to gradually narrow in the direction toward the lip valve side in order to minimize the insertion resistance generated by the insertion progress while the area of the first end of the instrument when the insertion of the laparoscopic surgical instrument is inserted body; And
When the separation of the laparoscopic surgical instruments to prevent the leg body from curling up so as to extend from one end of the leg body, characterized in that it comprises a shape maintenance protrusion having a thickness greater than the thickness of the leg body Trocar assembly with improved convenience. The method of claim 7, wherein
The main body includes:
Gas sealing valve protection unit disposed on the upper side of the gas sealing valve to prevent the gas sealing valve is damaged by the end of the laparoscopic surgical instruments while minimizing the insertion resistance generated during the insertion of the laparoscopic surgical instruments Trocar assembly improved convenience of the procedure characterized in that it further comprises. The method of claim 10,
The gas sealing valve protection unit,
A hollow disk-shaped hoop frame having a predetermined thickness and disposed above the gas sealing valve; And
One end is fixed to the inner circumferential surface of the hoop frame is a trocar assembly with improved convenience of the procedure characterized in that it comprises a plurality of wings which are deformed to the lower side and at the same time folded laterally when the laparoscopic surgical instrument is inserted.

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