WO2011129606A2

WO2011129606A2 - Sealing member for a trocar, and multi-port trocar for laparoscopic surgery comprising the sealing member

Info

Publication number: WO2011129606A2
Application number: PCT/KR2011/002621
Authority: WO
Inventors: 김학진; 김헌영; 김태형; 김동현; 이세미
Original assignee: 강원대학교산학협력단
Priority date: 2010-04-16
Filing date: 2011-04-13
Publication date: 2011-10-20
Also published as: KR101042305B1; WO2011129606A3

Abstract

The present invention relates to a sealing member for a trocar which enables the insertion of surgical instruments having a variety of diameters, and to a multi-port trocar for laparoscopic surgery comprising the sealing member. The multi-port trocar for laparoscopic surgery according to the present invention comprises: a main body having a plurality of ports for the insertion of surgical instruments; a sleeve which is coupled to the main body, and which has a through-hole through which the surgical instruments are to penetrate; and a plurality of sealing members coupled to the respective ports so as to seal the gaps formed between the surgical instruments inserted through the ports and the main body. Each sealing member comprises: a doughnut-shaped main body portion, the center of which has an opening; and a cover portion which is arranged on the main body portion so as to cover the opening of the main body portion, and which has an insertion hole smaller than the opening of the main body portion such that a surgical instrument can be inserted into the insertion hole. The insertion hole is formed in the center of the cover portion, and the center of the cover portion is recessed toward the inside of the opening. The cover portion is elastically deformed and the insertion hole is expanded such that the center of the cover portion can be further recessed toward the inside of the opening when the surgical instrument having a diameter larger than the diameter of the insertion hole is inserted into the insertion hole.

Description

Sealing member for trocar and multiport trocar for laparoscopic surgery

The present invention relates to a trocar used in laparoscopic surgery, and more particularly, to a trocar sealing member capable of inserting surgical instruments of various diameters, and a multiport trocar for laparoscopic surgery having the same.

Laparoscopic surgery forms a micro incision in the abdomen of the patient, inserts a trocar into the abdomen, and then inserts various surgical instruments such as an endoscope into the surgical site through the trocar and observes the surgical site by endoscope. It is a surgical method. Such laparoscopic surgery is widely used in various surgical procedures such as cholecystectomy, cholecystectomy, hepatic stone removal, and appendectomy.

Laparoscopic surgery, unlike laparotomy, does not have a large incision in the abdomen, forms a small incision on the abdomen surface, inserts the trocar and inserts various surgical instruments through the trocar. There is an advantage such that the inside may not be in contact with the outside air. The trocar has a sealing member for preventing the occurrence of a gap between the surgical instrument being inserted.

Prior art trocars consisted of a single port into which one surgical instrument could be inserted, requiring multiple trocars for laparoscopic surgery. That is, several holes must be drilled in the patient's abdomen, and trocars are inserted into each hole, and surgical instruments such as endoscope, gas injector, laser generator, and cutter are inserted into each trocar in one-to-one operation. did.

When laparoscopic surgery is performed using the single-port trocar of the prior art, several trocars must be inserted into the plurality of patients, resulting in several wounds and skin damages on the abdomen of the patient. This increases the cost of surgery, there is a problem that the operation time and recovery period is long.

To solve this problem, a trocar capable of inserting several surgical instruments has been introduced. By the way, the sealing member of the trocar according to the prior art has a complicated structure and a high manufacturing cost, and only a surgical instrument having a diameter of a predetermined size can be inserted, so that the sealing member must be replaced to use a surgical instrument having a different diameter. There is this.

The present invention has been made to solve the problems of the trocar of the prior art as described above, the trocar sealing member and the laparoscopy having the same can be changed in the size of the insertion hole to insert the surgical instruments of various diameters It is an object to provide a multiport trocar.

Sealing member for a trocar according to an embodiment of the present invention for achieving the above object is provided on the top of the body portion to cover the opening at the top of the body portion and the donut-shaped body with the opening is formed in the center and surgery It includes a cover portion provided with an insertion hole smaller than the opening so that the mechanism can be inserted. The cover part is elastically deformed so that the center part of which the insertion hole is formed is recessed toward the inside of the opening, and when the surgical instrument having a diameter larger than the diameter of the insertion hole is inserted into the insertion hole, the center part of the cover part is further recessed into the opening. As the insertion hole is expanded.

Laparoscopic surgery multi-port trocar according to an embodiment of the present invention for achieving the object as described above and the body having a plurality of ports that can be inserted into the surgical instrument; A sleeve coupled to the body and having a through hole through which the surgical instrument can pass; It includes; a plurality of sealing members coupled to the plurality of ports for sealing between the surgical instrument and the body is inserted through the plurality of ports. The sealing members include a donut-shaped body portion having an opening formed in the center, and a cover portion provided at an upper portion of the body portion to cover the opening at the upper portion of the body and having an insertion hole smaller than the opening so that the surgical instrument can be inserted therein. The cover part is recessed toward the inside of the opening, and the center part of the cover hole is retracted toward the inside of the opening. The hole is expanded.

Trocar sealing member and laparoscopic surgery multi-port trocar having the same according to the present invention can be inserted at the same time several surgical instruments, minimizing the skin damage of the patient during laparoscopic surgery, it is possible to reduce the operating cost.

In addition, the laparoscopic multi-port trocar according to the present invention, since the sealing member is coupled to the port to form a stable contact surface with the surgical instrument inserted therein, the insertion hole can be expanded, various diameters without replacing the sealing member Can be used by inserting surgical instruments. Therefore, it is not necessary to change the trocar according to the surgical instruments, thereby reducing the operating cost, and when an unexpected situation occurs during the operation, the necessary surgical instruments can be inserted into the trocar to respond quickly.

Laparoscopic surgery multi-port trocar according to the present invention is made of a structure that the sealing member can be elastically deformed smoothly, the operator can easily adjust the angle of the surgical instrument in the state in which the surgical instrument is inserted into the trocar, Even if the angle is changed, the circumference of the surgical instrument can be stably sealed.

Laparoscopic surgical multiport trocar according to the present invention can easily shrink the sleeve by pulling a ring disposed outside of the sleeve, so that it can be easily inserted into the incised abdomen of the patient, and easily detached from the incised abdomen of the patient. Can be.

1 is a perspective view of one sealing member separated showing a multi-port trocar for laparoscopic surgery according to an embodiment of the present invention.

Figure 2 is a cross-sectional view showing a multi-port trocar for laparoscopic surgery according to an embodiment of the present invention.

Figure 3 is a plan view omitting one sealing member to show a multi-port trocar for laparoscopic surgery according to an embodiment of the present invention.

Figure 4 is a bottom view showing a sealing member of the multi-port trocar for laparoscopic surgery according to an embodiment of the present invention.

5 and 6 are views showing a process in which the surgical instrument is inserted into the sealing member of the laparoscopic multi-port trocar according to an embodiment of the present invention.

7 is a view showing a state in which the sleeve of the laparoscopic multi-port trocar according to an embodiment of the present invention is reduced.

8 is a view showing a state in which a surgical instrument is inserted into the laparoscopic multi-port trocar according to an embodiment of the present invention.

Hereinafter, a trocar sealing member and a laparoscopic surgical multiport trocar having the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In describing the present invention, the size or shape of the components shown in the drawings may be exaggerated or simplified for clarity and convenience of description. In addition, terms that are specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. These terms should be interpreted as meanings and concepts corresponding to the technical spirit of the present invention based on the contents throughout the specification.

1 and 2, the laparoscopic multiport trocar 100 according to an embodiment of the present invention includes a plurality of ports 111 into which a surgical instrument 10 (see FIG. 5) may be inserted. The body 110 having a plurality of sealing members 120 coupled to the plurality of ports 111, the sleeve 130 is coupled to the lower portion of the body 110, a plurality of opening and closing the plurality of ports 111 A plurality of shutters 140 are disposed below the sealing members 120. Trocar 100 according to an embodiment of the present invention by having a plurality of ports 111, a plurality of surgical instruments 10, such as endoscope, gas injector, laser generator, cutter, etc. at the time of laparoscopy at the same time Can be inserted into

The outside of the body 110 is coupled to the valve 112 for injecting gas into the abdomen of the patient, or discharge the gas inside the abdomen to the outside. The valve 112 protrudes from an upper surface of the main body 110, and a flow path (not shown) provided therein is connected to a flow path (not shown) of the main body 110. The flow path of the main body 110 connects the valve 112 and the through hole 134 of the sleeve 130. The body 110 may be made of various materials that are not harmful to the human body, such as plastic having a relatively high strength.

1 to 4, the sealing members 120 are for sealing between the surgical instrument 10 inserted through the ports 111 and the main body 110, and the ports 111 of the main body 110. Is coupled to. In the ports 111, a ring-shaped support part 113 having a connection hole 114 is provided. The sealing members 120 are placed on the support 113. The sealing member 120 has an insertion hole 124 into which the surgical instrument 10 can be inserted, and is made of a soft material capable of elastic deformation.

Sealing members 120 are provided in the upper portion of the body portion 122 to cover the opening 121 in the donut-shaped body portion 122 having the opening 121 is formed in the center, the upper portion of the body portion 122 The cover part 123 is included. The body portion 122 is formed in a hollow hollow shape in a donut shape so that both ends thereof do not contact each other. The cover part 123 extends from one end of the body part 122 to be integral with the body part 122.

An insertion hole 124 into which the surgical instrument 10 can be inserted is provided in the cover part 123. The central portion of the cover part 123 in which the insertion hole 124 is provided is recessed toward the inside of the opening 121. When the surgical instrument 10 having a diameter larger than the diameter of the insertion hole 124 is inserted into the insertion hole 124, the center portion of the cover part 123 is elastically deformed so as to be further recessed into the opening 121. Accordingly, the insertion hole 124 expands to a size into which the surgical instrument 10 can be inserted.

5 and 6, when the surgical instrument 10 is inserted into the insertion hole 124, a close contact surface is formed between the cover part 123 of the sealing members 120 and the outer circumferential surface of the surgical instrument 10. . As such, the sealing members 120 are in close contact with the outer circumferential surface of the surgical instrument 10 to block the flow of gas through the ports 111. Since the sealing member 120 is easily elastically deformed not only the cover part 123 in which the insertion hole 124 is provided, but also the body part 122, the operator may operate in the state where the surgical instrument 10 is inserted into the insertion hole 124. The angle of the instrument 10 can be freely adjusted. Even if the surgical instrument 10 is inclined, the sealing members 120 may be stably in close contact with the outer circumferential surface of the surgical instrument 10.

As shown in Figure 1 and 2, the sleeve 130 is coupled to the lower portion of the body (110). The sleeve 130 has a through hole 134 through which a plurality of surgical instruments 10 inserted through the plurality of ports 111 can pass. The sleeve 130 is made of a soft material that is elastically deformable and not harmful to the human body. The sleeve 130 may be bonded or mechanically coupled to the bottom surface of the body 110 or bonded in various ways. The sleeve 130 is inserted into the incised abdomen of the patient serves to secure the surgical space.

The sleeve 130 has a first ring portion 131 coupled to the main body 110, a second ring portion 132 disposed in parallel with the first ring portion 131, a first ring portion 131, and a second ring portion 132. It includes a pipe 133 for connecting. The pipe part 133 is formed in the shape of a mortar gradually increasing in diameter as the diameter gradually decreases from the first ring portion 131 toward the middle portion, and gradually goes toward the second ring portion 132 in the middle portion. The second ring portion 132 and the pipe portion 133 are contracted when inserted into the incised abdomen of the patient and then expanded to the original state after being inserted into the abdomen. A ring-shaped mounting hole 135 is formed inside the second ring portion 132. The pipe part 133 and the first ring part 131 are provided with a connection passage 136 connected to the installation hole 135. The connection passage 136 is opened to the outside from the first ring portion 131.

The wire 137 is inserted into the installation hole 135 of the first ring portion 131. Both ends of the wire 137 exit out of the sleeve 130 through the connecting passage 136. Rings 138 are coupled to both ends of the wire 137. As shown in FIG. 7, when the operator pulls the ring 138, the wire 137 is further drawn out of the sleeve 130 to contract the first ring portion 131. At this time, a portion of the first ring portion 131 and the pipe portion 133 is contracted. When the first ring part 131 and the pipe part 133 are contracted in this way, the sleeve 130 can be easily inserted into the incised abdomen of the patient, and the sleeve 130 can be easily separated from the abdomen of the patient.

As illustrated in FIGS. 2 and 3, a plurality of shutters 140 are disposed under the plurality of sealing members 120 to open and close the plurality of ports 111. The shutters 140 include a plurality of split valves 141 coupled to the main body 110 so that the shutters 140 may be collected together to block the ports 111. The divided valves 141 are made of a material capable of elastic deformation, and are elastically deformed when subjected to an external force.

As shown in FIG. 7, the plurality of divided valves 141 are collected toward the center of the ports 111 when they are not subjected to an external force to cover the ports 111 to block the flow of gas through the ports 111. Therefore, even though the surgical instrument 10 is not inserted into the ports 111, the flow of gas through the ports 111 may be blocked.

As shown in FIG. 8, the plurality of divided valves 141 are opened to the outside when pressed by the surgical instrument 10 inserted through the ports 111. In this case, the surgical instrument 10 may be inserted into the sleeve 130 through a gap between the divided partition valves 141. When the surgical instrument 10 exits, the partition valves 141 are collected again to cover the ports 111.

As such, the laparoscopic multiport trocar 100 according to the embodiment of the present invention forms a stable contact surface with the surgical instrument 10 into which the sealing members 120 coupled to the ports 111 are inserted. Since the insertion hole 124 can be expanded, it is possible to insert and use surgical instruments 10 of various diameters without replacing the sealing members 120. And since there is no need to change the trocar 100 according to the surgical instrument 10, it is possible to reduce the surgical cost.

Laparoscopic surgery multi-port trocar 100 according to an embodiment of the present invention, the sealing member 120 can be elastically deformed smoothly as a whole, in a state in which the surgical instrument 10 is inserted into the trocar 100 The operator can easily adjust the angle of the surgical instrument (10). In addition, the laparoscopic multi-port trocar 100 according to an embodiment of the present invention can easily reduce the sleeve 130 by pulling the ring 138 placed on the outside of the sleeve 130, the patient incision It can be easily inserted into the abdomen and easily separated from the incised abdomen of the patient.

The embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

Claims

In the sealing member provided in the laparoscopic trocar for inserting the surgical instrument into the abdomen of the patient,

A donut-shaped body portion having an opening formed in the center thereof, and a cover portion provided at an upper portion of the body portion to cover the opening at an upper portion of the body portion and having an insertion hole smaller than the opening so that a surgical instrument can be inserted therein; ,

The cover portion is recessed toward the inside of the opening, the center portion of which the insertion hole is formed, and when the surgical instrument having a diameter larger than the diameter of the insertion hole is inserted into the insertion hole, the center portion of the cover portion is inside the opening. The sealing member for trocar, characterized in that the insertion hole is expanded while being elastically deformed to further sink.
The trocar sealing member according to claim 1, wherein the body portion is formed of a hollow hollow.
3. The trocar sealing member according to claim 2, wherein the body portion is rolled in a donut shape so that both ends thereof do not contact each other, and the cover portion extends from one end of the body portion.
A body having a plurality of ports into which the surgical instrument can be inserted;

A sleeve coupled to the body and having a through hole through which the surgical instrument can pass;

And a plurality of sealing members coupled to the plurality of ports for sealing between the surgical instrument and the body inserted through the plurality of ports.

The sealing member has a donut-shaped body portion having an opening in the center, and an insertion hole smaller than the opening so that the surgical instrument can be inserted in the upper portion of the body portion to cover the opening at the upper portion of the body portion. Including a cover portion provided,

The cover part is recessed toward the inside of the opening in which the center portion where the insertion hole is formed is recessed, and when the surgical instrument having a diameter larger than the diameter of the insertion hole is inserted into the insertion hole, the center part of the cover part is inside the opening. Laparoscopic surgical multi-port trocar, characterized in that the insertion hole is expanded while being deformed to further decay.
5. The laparoscopic multiport trocar according to claim 4, wherein the body parts of the sealing members are hollow.
The multiport trocar for laparoscopic surgery according to claim 5, wherein the body parts of the sealing members are rolled in a donut shape so that both ends thereof do not contact each other, and the cover part extends from one end of the body part.
5. The sleeve of claim 4, wherein the sleeve comprises a first ring portion coupled to the main body, a second ring portion disposed in parallel with the first ring portion, the first ring portion and the second ring portion, and an intermediate portion at the first ring portion. The diameter of the pipe gradually decreases as it goes to the second ring, and the diameter of the pipe gradually increases again from the middle portion to the second ring, a ring-shaped installation hole provided in the second ring, and connected to the installation hole. Laparoscopic surgical multiport trocar, characterized in that it comprises a connecting passage extending from the first ring portion to the first ring portion through the opening.
The wire of claim 7, further comprising a wire inserted into the installation hole and both ends exposed to the outside through the connection passage, and a ring coupled to both ends of the wire.

Laparoscopic surgical multiport trocar, characterized in that when the wire is pulled out of the sleeve and the pipe portion and the second ring portion is elastically deformed and contracted.
The method of claim 4, further comprising a plurality of shutters disposed under the plurality of sealing members for opening and closing the plurality of ports,

The plurality of shutters have a plurality of split valves coupled to the main body so that they can be gathered together to block the plurality of ports, and the plurality of split valves are pressed by the surgical instrument inserted through the plurality of ports. Laparoscopic surgery multiport trocar, characterized in that the elastic deformation and open to each other.