KR20160036410A

KR20160036410A - Single port

Info

Publication number: KR20160036410A
Application number: KR1020140128658A
Authority: KR
Inventors: 정현국; 김성훈; 이근호; 김대연; 김태중; 김희승
Original assignee: 주식회사 세종메디칼
Priority date: 2014-09-25
Filing date: 2014-09-25
Publication date: 2016-04-04

Abstract

A single port is initiated. The single port according to the present invention is characterized in that a channel device having a channel formed on the upper side and an opening hole formed on the lower side so that the instrument for laparoscopic surgery penetrates in a vertical direction; A tube-shaped wind retractor coupled to the opening hole at the lower side of the body and communicating with the inside of the channel device; A gas suction tube formed in a flexible tube shape having a diameter smaller than that of the can retractor and having a first end connected to the channel device inside the channel device and a second end extending downward through the inside of the can retractor; And a connecting body for interconnecting the laparoscopic surgical instrument and the gas suction tube so as to move together. According to the present invention, there is provided a gas suction tube connected through the inside of the channel device and extending downward of the can retractor, and a connector for connecting the laparoscopic surgical instrument and the gas suction tube, It is possible to effectively prevent the visibility of the endoscope from being disturbed by the gas.

Description

Single port {SINGLE PORT}

The present invention relates to a single port, and more particularly, to a single port that can be used to penetrate a laparoscopic surgical instrument and can be used to retrieve an extraction generated during an operation.

Unlike conventional laparotomy, laparoscopic surgery is being performed to minimize the incision of the skin and to restore the patient 's speed.

Such a laparoscopic operation is a surgical procedure performed by observing the operation site of the abdominal cavity by making a tube to the abdomen of the patient using a surgical apparatus called Trocar and introducing a surgical instrument such as an endoscope into a surgical site in the abdominal cavity, Resection, biliary stones removal, head dendriticectomy, general surgery and so on.

Here, the trocar refers to a medical instrument used for approaching the abdominal cavity, and the trocar is inserted and fixed into the body through a navel or a skin incision (incision) of a patient, and a structure in which a laparoscopic surgical instrument is inserted To be exposed to the outside.

Through the incision of the abdomen, the surgical instruments for surgery can be inserted, as well as the exudates (organs, lumps, cancer tissues, etc.) generated during surgery can be taken out.

The smaller the incision is made, the less space is available for surgery. Thus, conventionally, a surgical assistant (eg, a nurse) pulls the incision directly, spreads the inside or outside of the incision with a forceps, connects the wire to the forceps, pulls it around the instrument and binds the incision to secure a surgical space in the abdomen Surgery was performed.

Such a conventional method of opening the incision is troublesome and has a problem of limiting the activity space of a doctor. Since the incision cuts the abdominal skin tissue, it is necessary to prevent the exudate from contacting the wound tissue of the incision or contact with the surgical instrument in the case of surgery that involves secondary infection (metastasis), such as cancer tissue removal surgery.

In the case of laparoscopic surgery using a trocar, the surgical tube is inserted into the incision and the surgical instrument is inserted into the abdomen through the tube, so that the surgical instrument is not likely to come into contact with the wound tissue of the incision. However, A conventional incision is made by making one incision in the incision and wrapping the inside and the outside of the incision with vinyl or the like and then removing the excision to prevent the excision from contacting the incision wound tissue.

However, in the conventional surgical method, a plurality of incisions have to be formed. In order to solve such a problem, Korean Patent No. 10-102754 (Announcement: Mar. 17, 2011) Quot; multi-channel trocar that combines a multi-channel trocar ", and a cut-off portion of the abdomen is provided with a multi-channel retractor.

Here, the wound retractor, which is a device used in laparoscopic surgery, opens the incision for abdominal surgery without restricting the physician's activity space, and inserts the surgical instrument, moves the inserted surgical instrument, The same operation space is secured, and the wound tissue of the incision is wrapped to prevent the cancer cells from being transferred to the wound tissue.

In the case of a multi-channel trolley according to Korean Patent No. 10-1022754, there is an advantage that the can retractor can be detachably coupled and assembled to the main body, but the structure of the can retractor is complicated, There is a problem that the unit price is increased and the operation of combining the multi-channel member for trocar with the can retractor is complicated. Particularly, since the multi-channel member for trocar is made rigid, it is difficult to attach the can retractor to the multi- There is a problem.

On the other hand, in endoscopic laparoscopic surgery, the tissue may be cauterized using an electrocautery. If the gas generated during cauterization is not properly treated, the view of the endoscope is obstructed and the laparoscopic surgery becomes difficult. do. A conventional apparatus including a multi-channel trocar according to Korean Patent No. 10-1022754 can not provide a solution for solving such a problem, and therefore, improvement is required.

As another prior art, Korean Patent Registration No. 10-1172660 (Publication Date: 2012.08.08) discloses a "laparoscopic wound re-tractor", and specifically discloses an upper retractor and a shape retaining structure And a lower body coupled to a lower end of the penetration tube, wherein the upper body is located outside the incision, and the lower body is located inside the incision And the penetrating tube is formed to form a passage.

In addition, Korean Patent No. 10-1172660 discloses a laparoscopic surgeon who can easily secure an operation space at the time of laparoscopic surgery, and can easily carry out operations such as extraction of the exudates without infection .

However, such a conventional wind retractor has the following problems.

Since the lower body is made of a material having an elastic restoring force and is formed into a circular ring shape, when the lower body is inserted into the incision or when the lower body is removed from the incision after the operation is completed, It is difficult to take out the sieve.

Particularly, if the pulling thread is pulled to pull out the lower body after the operation is completed, the lower body must be elongated and out of the cutout, but the lower body is not easily deformed by generating restoring elasticity to return to the original state by elastic restoring force There arises a problem that it is difficult to work.

(0001) Korean Patent No. 10-1022754 (Published on Mar. 17, 2011) (0002) Korean Patent No. 10-1172660 (public announcement date: Aug. 08, 2012)

SUMMARY OF THE INVENTION An object of the present invention is to provide a single port for facilitating gas discharge while preventing leakage of gas generated during laparoscopic surgery.

The above object is achieved by a channel device in which a channel is formed on an upper side and an opening hole is formed on a lower side so that a laparoscopic surgical instrument penetrates in a vertical direction; A tube-shaped wind retractor coupled to the opening hole at a lower side of the body and communicating with the inside of the channel device; A gas suction tube formed in a flexible tube shape having a diameter smaller than that of the can retractor, one end of the channel device being coupled to the channel device, and the other end extending downward through the inside of the can retractor; And a connector for connecting the laparoscopic surgical instrument and the gas suction tube together to move together.

Wherein the channel device comprises: an upper body on which the channel is formed; And a lower body coupled to a lower side of the upper body and having a reduced diameter with at least a part of the lower body facing downward, the opening body being formed at a center of the lower body, wherein the lower body is elastically deformable.

The connecting body includes: a first ring surrounding and fixed to an outer periphery of the gas suction tube; And a second ring into which the laparoscopic surgical instrument is inserted.

At this time, a locking protrusion is formed in one of the first ring and the gas suction tube so that the connecting body is prevented from moving along the longitudinal direction of the gas suction tube, and the other is formed with a locking groove into which the locking protrusion is inserted have.

In addition, the channel device may be formed with a gas supply pipe through which gas injected into the body is supplied and a gas discharge pipe through which gas inside the body is discharged, respectively, and the gas suction tube may be coupled to the gas discharge pipe.

The single port according to the present invention includes a lip valve which is opened when inserting the laparoscopic surgical instrument and is closed when the laparoscopic surgical instrument is separated, and inserted into the channel; And a laparoscopic surgical instrument for inserting a laparoscopic surgical instrument into the laparoscopic surgical instrument, the laparoscopic surgical instrument being inserted into the laparoscopic surgical instrument, Wherein the gas confinement structure is configured to move at least a part of the gas confinement structure to the channel when the laparoscopic surgical instrument is moved while maintaining the closed state.

Wherein the gas enclosure comprises: a through-hole through which the through-hole is formed; An inner edge wall extending upwardly from the perimeter of the through-membrane; And an outer rim wall positioned outside the inner rim wall and extending from the inner rim wall toward the penetrating membrane, wherein the penetrating film and the inner rim wall are elastically deformed against the outer rim wall.

An enclosure fixing unit for supporting a lower end of the outer rim wall; And a cover having an insertion hole formed at the center for insertion of the laparoscopic surgical instrument and coupled to an upper end of the channel.

In the single port according to the present invention, a channel connecting part connecting the upper surface of the channel device and the channel and elastically deformable is formed, and the channel connecting part includes an inner connecting part extending downward from the lower end of the upper channel; An intermediate connection portion extending radially from the lower end of the inner connection portion; And an outer connecting portion extending upward in the frame of the intermediate connection portion.

And the wound retractor includes: an upper body positioned on the outside of the incision hole and having a circular ring shape; A lower body positioned on the inner side of the incision hole and having a circular ring shape; A transparent sleeve for connecting the upper body and the lower body; And a detachment means for guiding the lower body to be deformed when the removal thread is pulled from the outside of the incision hole is provided on the lower body, The deformation inducing means may comprise one or more deformation inducing grooves formed on the inner circumferential surface of the lower body or one or more deformation inducing cavities formed on the lower body.

According to the present invention, there is provided a gas suction tube connected through the inside of the channel device and extending downward of the can retractor, and a connector for connecting the laparoscopic surgical instrument and the gas suction tube, It is possible to effectively prevent the visibility of the endoscope from being disturbed by the gas.

1 is a perspective view illustrating a single port according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view showing the single port shown in FIG. 1,
3 is a cross-sectional view of the single port shown in FIG. 1,
FIG. 4 is a sectional view showing the gas mantle shown in FIG. 3,
FIG. 5 is a view showing the use state of the single port shown in FIG. 1,
6 is a perspective view and a cross-sectional view illustrating a connector according to another embodiment of the present invention,
FIG. 7 is a cross-sectional view illustrating a joined state of a connecting body and a gas suction tube according to another embodiment of the present invention. FIG.
FIG. 8 is a perspective view showing a can retractor according to the present invention,
FIGS. 9A, 9B and 9C are plan views showing a first embodiment of a deformation inducing means provided in a lower body of the can retractor shown in FIG. 8,
10 is a plan view showing a second embodiment of the deformation inducing means provided in the lower body of the wind retractor shown in Fig. 8, Fig.
Fig. 11 is a plan view showing a third embodiment of the deformation inducing means provided in the lower body of the wind retractor shown in Fig. 8,
FIG. 12 is a partially enlarged sectional view showing the fixing portion shown in FIG. 8,
6A is a plan view showing a state in which the lower body is deformed, FIG. 6B is a sectional view showing a state where the lower body is installed in the incision hole, FIG. 6C is a cross- Sectional view showing a state in which the body is deformed.

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.

1 is a perspective view showing a single port 1 according to an embodiment of the present invention, FIG. 2 is an exploded perspective view showing a single port 1 shown in FIG. 1, and FIG. 3 is a cross- FIG. 4 is a cross-sectional view showing the gas mantle 130 shown in FIG. 3, and FIG. 5 is a cross-sectional view showing the state of use of the single port 1 shown in FIG. FIG. 6 is a perspective view and a cross-sectional view of a connector 210 according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view illustrating a connector 210 according to another embodiment of the present invention, Sectional view showing a state of engagement of the base member 200 according to the second embodiment of the present invention.

The single port 1 according to the present invention is used for laparoscopic surgery and a part of the tractor 10 can be inserted into the body through the incision hole 90 of the patient, The operation is performed by inserting a laparoscopic surgical instrument (A) into the single port (1).

Hereinafter, the description of the single port 1 according to the present invention will be described by defining the upward or downward direction based on the shape shown in FIG.

The single port 1 according to the present invention comprises a channel device 100, a can retractor 10, a gas suction tube 200 and a connecting body 210, A gas valve 130, an enclosure fixing unit 140, and a cover 150, as shown in FIG.

In the single port 1 according to the present invention, the can retractor 10 comprises an upper body 20, a lower body 30, a sleeve 40 and a removal chamber 50, It may be formed in the same manner as the retractor 10. However, the undra retractor 10 according to the present invention may be provided with a deformation inducing means, and a detailed description of the undra retractor 10 will be described later.

The channel device 100 includes a laparoscopic surgical instrument A (an endoscope, an electric endoscope or the like) to penetrate in a vertical direction. For this purpose, a channel 113 is formed on the upper side and an opening hole 114 is formed on the lower side do.

The open hole 114 is a portion to which the upper body 20 of the can retractor 10 is coupled and the channel 113 is passed through the laparoscopic surgical instrument A to support the laparoscopic instrument A The channel device 100 is provided with a plurality of units. Laparoscopic surgery may be performed in a state where an endoscope is inserted into one of the plurality of channels 113 and an electrocautery is inserted into the other end.

The body 110 forming the overall outer shape of the channel device 100 may be made of a material having restoring elasticity such as silicon and may be manufactured by injection molding.

In the single port 1 according to the present invention, the body 110 of the channel device 100 may be formed in a single shape, or may be divided into an upper body 111 and a lower body 112.

The upper body 111 is formed above the body 110, and the channel 113 is formed in the upper body 111.

The lower body 112 is coupled to the lower side of the upper body 111 and the opening 114 is formed at the center with the diameter of the lower body 112 becoming lower toward the lower side. The upper body 111 and the lower body 112 may be formed as protrusions protruding from any one of the protrusions and the protrusions may be inserted into the other protrusions.

The diameter of the opening hole 114 in the lower body 112 is made smaller than the diameter of the upper body 20 of the can retractor 10 so that the upper body 20 of the can retractor 10 is inserted into the opening hole The undertractor 10 is prevented from separating from the body 110 (in a downward direction) when no external force acts on the bottom retractor 10, do.

The channel 113 is formed on the upper side and the opening 114 is formed on the lower side and the diameter of the central portion is large and the upper side (the channel 113 portion) and the lower side In the single port 1 according to the present invention, the body 110 is divided into the upper body 111 and the lower body 112 so as to be coupled to each other. So that the body 110 can be easily manufactured by injection molding.

In addition, since the upper body 111 and the lower body 112 are formed separately from each other, the upper body 111 and the lower body 112 can be made of different materials, And so on.

For example, when the upper body 111 is formed of a relatively soft material and the lower body 112 is formed of a relatively hard material, the elastic deformation of the channel 113 portion (the channel 113 due to the operation of the surgical instrument) The entire shape of the channel device 100 (the body 110) can be easily maintained while facilitating the movement of the lower body 112 Can be made of a material excellent in elastic deformation.

A gas supply pipe 115 communicating with the inside of the can retractor 10 is coupled to one side of the body 110. The carbon dioxide is supplied to the gas supply pipe 115 to inject carbon dioxide into the body . The gas supply pipe 115 may be made of a material such as plastic, or may be formed of a soft material so as to be flexibly bent. In addition, the gas supply pipe 115 is provided with a valve for controlling opening and closing.

A gas discharge pipe 116 is connected to one side of the body 110 in the single port 1 according to the present invention and is separated from the gas supply pipe 115. The gas discharge pipe 116 is connected to the gas suction tube 200 The gas generated inside the body is discharged to the outside. That is, if the gas supply pipe 115 communicates with the interior of the channel device 100, the gas discharge pipe 116 communicates with the gas suction tube 200. The gas discharge pipe 116 may be made of a material such as plastic, or may be formed of a soft material so as to be flexibly bent. In addition, a valve for regulating the opening and closing of the gas discharge pipe 116 is formed.

The channel 113 is formed in a tube shape protruding upward in the body 110, and may be provided in a plurality of channels. The channel 113 may be formed integrally with the body 110, and may be integrally formed with the upper body 111.

The channel 113, which is a part of the body 110 made of a flexible material such as silicon, can be tightly coupled to the channel maintenance tube 170 in the form of a circular tube for maintaining its shape. 170 may be made of plastic or metal, and supports an enclosure fixing unit 140, a cover 150, and the like, which are coupled to the inside of the channel maintenance pipe 170.

The channel connection part 160 is formed in the channel device 100 according to the present invention and the channel connection part 160 is elastically deformable while connecting the upper surface of the body 110 and the channel 113, 110, and the channel 113. [

The channel connection portion 160 may be divided into an inner connection portion 161, an intermediate connection portion 162, and an outer connection portion 163.

The inner connection portion 161 is a portion extending downward from the lower end of the channel 113 and may be formed in a substantially cylindrical shape. The inner connecting portion 161 is longer than the outer connecting portion 163 so that the inner connecting portion 161 does not interfere with the movement of the channel device 100 during the elastic deformation.

The intermediate connection portion 162 is a portion extending radially from the lower end of the inner connection portion 161.

The outer connection portion 163 is located on the outer side of the inner connection portion 161 and extends upward from the rim of the intermediate connection portion 162 and may be formed in a substantially cylindrical shape.

This makes it possible to easily move the inner connecting part 161 with respect to the outer connecting part 163 and to minimize the deformation of the lower part of the channel 113 in the body 110, The smooth movement of the instrument A can be achieved.

The lip valve 120 is inserted and fixed in the channel 113 and is opened when the laparoscopic surgical instrument A is inserted and closed when the laparoscopic surgical instrument A is separated, Do not leak.

For this purpose, the lip valve 120 is made of silicon or the like having its own elastic force, and a plurality of cutouts 121 are formed on the lower side of the lip valve 120. At this time, it is preferable that the incision 121 is radially formed at the center of the lip valve 120.

In the state where the external force is not applied, the incision 121 of the lip valve 120 is kept in close contact with each other, and the laparoscopic surgical instrument A is inserted (inserted in the downward direction) 120, the laparoscopic instrument A penetrates the lip valve 120 while flaring in the incision 121. As shown in FIG.

The upper end of the lip valve 120 is formed in the channel 113 and the upper lip of the lip valve 120 is formed along the upper edge of the lip valve 120 in a state where the upper end of the lip valve 120 is seated on the seating lip. The seal fixture unit 140 is coupled to the inside of the channel 113 such that the seal fixture unit 140 allows the lip valve 120 to be stably fixed within the channel 113. [

The gas tight body 130 prevents the gas (carbon dioxide) injected into the body from leaking to the outside when the lip valve 120 is opened according to the insertion of the laparoscopic surgical instrument A. That is, even when the lip valve 120 is opened by the gas hermetically sealed body 130 which is in close contact with the outer circumferential surface of the laparoscopic surgical instrument A inserted through the through hole 131, the gas injected into the body of the patient It is possible to prevent leakage to the outside. The gas hermetic body 130 is made of a silicon material in the same manner as the lip valve 120.

The gas enclosure 130 according to the present invention is divided into a penetrating film 132, an inner rim wall 133 and an outer rim wall 134, and is integrally formed as a whole.

The through-hole 132 is formed in the form of a thin film at the center of the gas-tight body 130, and a through-hole 131 penetrating through the through-hole 132 in the vertical direction is formed at the center of the through- The through hole 131 is smaller than the diameter of the generally used laparoscopic surgical instrument A so that when the laparoscopic surgical instrument A is inserted, the through hole 131 is elastically deformed, Hole 131) is brought into close contact with the laparoscopic surgical instrument (A).

The inner edge wall 133 extends upward from the outer edge of the through-hole 132 and may be formed in a substantially cylindrical shape. The inner edge wall 133 has a length such that its vertical height is sufficient to allow the through hole 132 to move with respect to the outer edge wall 134. Specifically, the inner edge wall 133 has the same height as the diameter of the through hole 132 Or larger.

The outer rim wall 134 is located outside the inner rim wall 133 and extends from the inner rim wall 133 toward the through-hole 132, and may be formed in a generally cylindrical shape. The outer edge wall 134 is preferably longer than the inner edge wall 133 and is larger than the diameter of the inner edge wall 133.

Accordingly, the deformation of the through-hole 132 can be reduced while smoothly moving (in particular, moving in the horizontal direction) the through-hole 132 with respect to the lower edge of the outer edge wall 134.

The enclosure fixing unit 140 fixes the gas hermetic body 130 on the channel 113 so that the portion of the outer hermetic wall 134 of the gas hermetic body 130 is fixed to the channel 113 do.

The enclosure fixing unit 140 is made of a material such as plastic that can be fixed in shape, and is formed in a circular ring shape, and the upper surface thereof is engaged with the lower end of the outer rim wall 134.

The enclosure fixing unit 140 is spaced apart from the through-hole 132 and the inner edge wall 133 in a downward direction so as not to interfere with the movement of the gas enclosure 130.

The cover 150 forms the uppermost portion of the channel device 100 and an insertion hole 154 is formed at the center thereof so as to open to insert the laparoscopic surgical instrument A.

Specifically, the cover 150 is divided into an inner wall 151, an outer wall 152, and an upper surface 153.

The inner space of the inner wall 151 becomes the insertion hole 154 and the inner diameter of the inner wall 151 (diameter of the insertion hole) is larger than the inner wall 133 of the gas mantle 130 and the enclosure fixing unit 140 As shown in FIG.

The upper surface 153 connects the inner wall 151 and the upper end of the outer wall 152 and may be inclined downward toward the inner side for easy insertion of the laparoscopic surgical instrument A. have.

The outer wall 152 is spaced apart from the inner wall 151 and surrounds the inner wall 151 and is coupled to the channel holding pipe 170.

As described above, according to the single port 1 of the present invention, since the laparoscopic surgical instrument A is inserted into the channel device 100, The laparoscopic surgical instrument A can be moved in a wide range so that the operation can be easily performed and the through hole 131 of the gas tight body 130 can be easily moved It is not necessary to form it unnecessarily large, and it is also possible to effectively prevent the gas from leaking to the outside.

The gas suction tube 200 is formed in a tube shape having a diameter smaller than that of the can retractor 10 and is coupled into the channel device 100. Particularly, the gas suction tube 200 is connected to the gas discharge pipe 116 at one end inside the channel device 100 and extends downward and extends downward through the interior of the can retractor 10.

The gas suction tube 200 is made of a flexible material such as silicone, inserted into the body during laparoscopic surgery, and sucks gas generated during cauterization to be discharged to the outside. That is, in the laparoscopic surgery, the inside of the channel device 100 and the incision hole are filled with the carbon dioxide introduced through the gas supply pipe 115, and the gas generated during the cauterization is sucked through the gas suction tube 200, Make sure you have a clear view.

Further, the gas suction tube 200 may be formed in the form of a corrugated tube so as to be stretchable along the longitudinal direction, and may be coupled with the endoscope through the connecting body 210 to move along with the forward and backward movement of the endoscope.

The connecting body 210 is a means for interconnecting the laparoscopic instrument A and the gas suction tube 200 so as to move together and may include a first ring 211 and a second ring 212 .

The first ring 211 is formed in the shape of a ring, particularly a circular ring, so as to surround and fix the outer periphery of the gas suction tube 200. That is, the inner diameter of the first ring 211 is set to be equal to the outer diameter of the gas suction tube 200, so that they are tightly coupled to each other. When the connecting body 210 flows down from the gas suction tube 200, (200).

The first ring 211 and the gas suction tube 200 are provided with a locking protrusion 220 in order to more effectively prevent the connecting member 210 from moving along the longitudinal direction of the gas suction tube 200 And a locking groove 230 into which the locking protrusion 220 is inserted may be formed in the other. The gas suction tube 200 may be formed with a locking protrusion 220 so that the locking protrusion 220 may be engaged with the coupling protrusion 220 without forming a locking groove 230 in the coupling body 210 (see FIG.

The second ring 212 is formed in the form of a ring, particularly a circular ring, so that the laparoscopic surgical instrument A is inserted through the inside thereof. Specifically, the second ring 212 is inserted through the interior of the second ring 212, and may be equal to or slightly larger than the diameter of the front end of the endoscope.

The second ring 212 may be formed in a completely circular ring shape, or may be partially cut into a C ring shape.

In the single port 1 according to the present invention, the laparoscopic surgery can be performed in a state in which the endoscope is inserted through one of the channels 113 and the electrocauter is inserted through the other channel 113, The front end of the endoscope and the lower end of the gas suction tube 200 are connected to each other through the body 210 so that the gas can be easily handled by the gas suction tube 200, The gas in the portion where the endoscope is placed can be preferentially sucked, so that the view of the endoscope can be easily secured and a smooth laparoscopic surgery can be performed.

FIG. 8 is a perspective view showing a wound retractor according to the present invention, FIGS. 9A, 9B and 9C are plan views showing a first embodiment of a deformation inducing means provided in a lower body of the wound retractor shown in FIG. 8, Fig. 10 is a plan view showing a second embodiment of the deformation inducing means provided in the lower body of the undrawing tract shown in Fig. 8, Fig. 11 is a view showing the deformation inducing means provided in the lower body of the undrawing tractor shown in Fig. 3 is a plan view showing the third embodiment. And FIG. 12 is a partially enlarged sectional view showing the fixing portion shown in FIG.

8 to 12, a wound retractor 10 according to the present invention includes an upper body 20 having a circular ring shape and located on the outside of a cut-off hole 90 (see Figs. 13B and 13C) A circular ring-shaped lower body 30 provided on the inner side of the incision hole 90; a transparent sleeve 40 connecting the upper body 20 and the lower body 30; 30 which is fixed at one end thereof. Since such a wound retractor 10 has a general structure, a detailed description thereof will be omitted. It is a matter of course that the upper body 20 and the lower body 30 may be formed in various structures.

The undra retractor 10 according to the present invention is made of a material having elasticity and elongation such as urethane (psu), silicone, and synthetic rubber (epdm).

The present invention provides a deformation inducing means 60 for guiding the lower body 30 to be easily deformed into a rectangular shape when the removal chamber 50 is pulled from the outside of the incision hole 90 to the lower body 30 It is prepared.

The deformation inducing means 60 comprises one or more deformation inducing grooves 62 formed in the inner peripheral surface 32 of the lower body 30 or one or more deformation inducing holes 64 formed in the lower body 30 .

This will be described more specifically.

The deformation inducing groove 62 has a structure that opens toward the center C of the lower body 30 when the deformation inducing means 60 is formed of the deformation inducing groove 62 as shown in Fig. . More specifically, the deformation inducing groove 62 is formed with a narrow deformation portion 62A on the inner side and a wide expanded portion 62B on the outer side toward the center C. [ At this time, the deformed portion 62A may be formed in various shapes such as an arc or hemisphere as shown in FIG. 9A, or may be formed in the shape "" as shown in FIG. 9B.

The deformed portion 62A is formed in an arc shape as shown in Fig. 9A in order to prevent the deformed portion 62A from being torn easily by dispersing the stress transmitted from the extending portion 62B.

And, when the deformed portion 62A is formed in the shape "" as shown in 2b, deformation can easily occur.

9A or 9B, the deformation inducing grooves 62 may be composed of one, as shown in FIG. 9C. That is, the deformation inducing groove 62 may be composed of 1 to 5, and if the number of the lower body 30 is 5 or more, the lower body 30 may not maintain its basic shape (ring shape) Therefore, it is preferable that the number is 1 to 4.

The thickness between the deformation portion 62A of the deformation inducing groove 62 and the outer peripheral surface of the lower body 30 is preferably approximately 1 to 4 mm. If it is less than 1 mm, the restoring elasticity of the lower body 30 is weak, and if it is 4 mm or more, the deformation does not easily occur.

In the case where the number of the deformation inducing grooves 62 is one, it is formed in the direction opposite to the fixing portion 36 with reference to the fixing portion 36 to which the removal chamber 50 is fixed. It is preferable that they are arranged on both sides of the partition 36 while maintaining a gap therebetween. This arrangement is intended to allow the lower body 30, which has been maintaining the circular shape, to deform easily while being collapsed when the removal chamber 50 is pulled. 1 to 4 deformation inducing grooves 62 are formed in the lower body 30 so that the lower body 30 is easily deformed in the longitudinal direction when the removal chamber 50 is pulled or is not elongated elliptical or circular It is deformed into an irregularly distorted shape. This deformation allows the lower body 30 to pass easily through the incision hole 90, which is smaller in size than the lower body 30.

The fixing portion 36 is for fixing the removal chamber 50 as shown in FIG. 12 and comprises a pair of adjacent first fixing holes 36A and a first fixing hole 36B. The first fixing hole 36A is formed with a concave engaging portion 36C extending in the direction opposite to the upper body 20 and the removing chamber 50 is fixed to the first fixing hole 36C in the direction of the engaging portion 36C The knot formed at the end of the removing chamber 50 is received and fixed while being received by the latching part 36C so as not to be exposed to the outside as it passes through the second fixing hole 36B after being passed through the second fixing hole 36A .

Of course, an area between the first fixing hole 36A and the first fixing hole 36B may be bound to the lower body 30 by using an end of the removal chamber 50.

The operation of the wind retractor 10 according to the present invention constructed as described above will be described.

13A is a plan view showing a state in which a lower body is deformed, and FIG. 13B is a view showing a state in which the lower body is installed in a cut-off hole And Fig. 13C is a perspective view showing a state in which the lower body is deformed.

13A, when the undersurface 30 is pressed from both sides, the lower body 30 is deformed by the deformation inducing groove 30, The deformed portion 62A of the elastic member 62 is deformed first and deformed into a rectangular shape, an elongated elliptical shape, or an irregular shape that is not a circular shape. Of course, it has a restoring force to return to its original state by its own elasticity at the time of such deformation.

The reason why the lower body 30 can be easily deformed only by the pressing operation from both sides of the lower body 30 is that the deformation inducing groove 62 is composed of the deformed portion 62A having the narrow structure and the extending portion 62B It becomes possible because it is. In other words, since the deformation inducing groove 62 is formed in a part of the lower body 30 in the shape of " "or" The thickness of the deformation inducing groove 62 is first bent, so that the entire deformation of the lower body 30 can be easily performed.

Since the lower body 30 is easily deformed in this way, the lower body 30 deformed in a rectangular shape is inserted into the incision hole 90 so as to be narrow in width.

Thus, the lower body 30 is caught inside the incision hole 90, and the sleeve 40 is in close contact with the inner wall of the incision hole 90.

When the installation of the can retractor 10 is completed as shown in Fig. 13B, the channel device is coupled to the can retractor 10. [ Of course, the can retractor 10 coupled to the channel device may be provided in the incision hole 90.

13C, in order to remove the can retractor 10 from the incision 90 after the operation is completed, the removal chamber 50 is pulled out of the incision hole 90. As shown in FIG.

That is, when the removal chamber 50 is pulled, the lower body 30 is pulled out of the incision hole 90 while being deformed on the basis of the deformation inducing grooves 62 as shown in FIG. 13C.

In other words, when the removal chamber 50 is pulled, the regions where the deformation inducing grooves 62 formed on both sides of the fixing portion 36 and on the opposite side are deformed first can not maintain the circular shape of the lower body 30 The removal thread 50 is deformed into a shape such as a rectangle or an ellipse in the direction in which the removal thread 50 is pulled, and the width (diameter) thereof becomes narrow.

With this operation, the lower body 30 maintaining the circular state can be easily drawn out from the incision hole 90, and the difficulty of forcible removal can be solved.

10 is a plan view showing a second embodiment of the deformation inducing means provided in the lower body of the undressor shown in Fig.

As shown in Fig. 10, the undra retractor according to the second embodiment has the same structure as that of the above-described embodiment except that the deformation inducing means 60 is formed of the deformation guide hole 64, The same as the embodiment.

When the external force is applied to the lower body 30, the deformable portion 64A, which is thinned, is first bent, and the lower body 30 is easily formed and restored. Can be easily performed.

11 is a plan view showing a third embodiment of the deformation inducing means provided in the lower body of the wind retractor shown in Fig.

11, in the undra retractor according to the third embodiment, the deformation inducing means 60 is formed of the deformation inducing hole 64, and the shape thereof is "(" And the extension portion 64B, as shown in Fig.

The deformation inducing holes 64 are formed in the lower body 30 as the deformation inducing means 60 as in the second and third embodiments so that the thickness of the region where the deformation inducing holes 64 are formed is smaller than the thickness of the deformation inducing holes 64 64 are not formed, the region where the deformation inducing hole 64 is formed is bent first when the external force is applied, so that the deformation of the lower body 30 can be easily performed.

The deformation inducing hole 64 is formed in the shape of "" or "(", which is extended toward the center C so that deformation of the deformation inducing hole 64 occurs more easily when an external force is applied to the lower body 30 In addition, after the external force is removed, it is quickly restored to the original state so that the lower body 30 has a ring shape.

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.

1: Single port
10: Wound retractor 20: Upper body
30: lower body 32: inner peripheral surface
36: fixing portion 36A: first fixing hole
36B: second fixing hole 36C:
40: Sleeve 50: Removal thread
60: deformation inducing means 62: deformation inducing groove
62A, 64A: deformation parts 62B, 64B:
64: strain inducer 90: incision ball
100: channel device 110: body
111: upper body 112: lower body
113: channel 114: opening hole
115: gas supply pipe 116: gas discharge pipe
120: Lip valve 121: Sectional improvement
130: gas enclosure 131: through hole
132: penetration film 133: inner rim wall
134: outer rim wall 140: enclosure fixing unit
150: cover 151: inner side wall
152: outer wall 153: upper surface
160: channel connection part 161: inner connection part
162: intermediate connection part 163:
170: channel holding tube 200: gas suction tube
210: connecting body 211: first ring
212: second ring 220:
230:

Claims

A channel device in which a channel is formed on an upper side and an opening hole is formed on a lower side so that the laparoscopic surgical instrument is vertically penetrated;
A tube-shaped wind retractor coupled to the opening hole at a lower side of the body and communicating with the inside of the channel device;
A gas suction tube formed in a flexible tube shape having a diameter smaller than that of the can retractor, one end of the channel device being coupled to the channel device, and the other end extending downward through the inside of the can retractor; And
Wherein the laparoscopic surgical instrument and the gas suction tube are connected to each other to move together.

The method according to claim 1,
The channel device comprises:
An upper body on which the channel is formed; And
And a lower body coupled to a lower side of the upper body and having a diameter reduced toward at least a part of the lower body and having the opening hole at a center thereof,
Wherein the lower body is elastically deformable.

The method according to claim 1,
The connecting body includes:
A first ring surrounding and fixing the outer periphery of the gas suction tube; And
And a second ring into which the laparoscopic surgical instrument is inserted.

The method of claim 3,
A locking protrusion is formed in one of the first ring and the gas suction tube so that the connecting body is prevented from moving along the longitudinal direction of the gas suction tube and the other is formed with a locking groove into which the locking protrusion is inserted Single port.

The method according to claim 1,
The channel device is formed with a gas supply pipe through which gases injected into the body are supplied and a gas discharge pipe through which gas inside the body is discharged,
And the gas suction tube is coupled to the gas discharge pipe.

6. The method according to any one of claims 1 to 5,
A lip valve that opens when the laparoscopic surgical instrument is inserted and closes when the laparoscopic surgical instrument is detached, the lip valve being inserted into the channel; And
The laparoscopic surgical instrument according to any one of claims 1 to 3, wherein the laparoscopic surgical instrument is inserted into the laparoscopic surgical instrument. And a gas enclosure disposed therein,
Wherein the gas confinement structure is configured such that at least a part of the gas confinement structure is deformed and moved relative to the channel while maintaining a closed state when the laparoscopic surgical instrument is moved.

The method according to claim 6,
The gas-
A through-hole through which the through-hole is formed;
An inner edge wall extending upwardly from the perimeter of the through-membrane; And
And an outer rim wall positioned outside the inner rim wall and extending from the inner rim wall toward the penetrating membrane,
Wherein the through-hole and the inner rim wall are resiliently deformed against the outer rim wall.

8. The method of claim 7,
An enclosure fixing unit for supporting a lower end of the outer rim wall; And
Further comprising a cover having an insertion hole formed at the center thereof for opening the laparoscopic surgical instrument, the cover being coupled to an upper end of the channel.

6. The method according to any one of claims 1 to 5,
A channel connecting portion connecting the upper surface of the channel device and the channel and being elastically deformable is formed,
The channel connection unit includes:
An inner connection portion extending downward from an upper end of the upper channel;
An intermediate connection portion extending radially from the lower end of the inner connection portion; And
And an outer connection portion extending upward from the rim of the intermediate connection portion.

6. The method according to any one of claims 1 to 5,
The can retractor includes:
An upper body positioned on the outer side of the incision hole and having a circular ring shape;
A lower body positioned on the inner side of the incision hole and having a circular ring shape;
A transparent sleeve for connecting the upper body and the lower body; And
And a removal chamber having one end fixed to the lower body,
Wherein the lower body is provided with a deformation inducing means for inducing deformation of the lower body when the removal chamber is pulled out from the cutout hole,
Wherein the deformation inducing means comprises one or more deformation inducing cavities formed on the inner circumferential surface of the lower body or one or more deformation inducing cavities formed on the lower body.