WO2010104259A1 - Trocart multivoies - Google Patents

Trocart multivoies Download PDF

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Publication number
WO2010104259A1
WO2010104259A1 PCT/KR2009/006112 KR2009006112W WO2010104259A1 WO 2010104259 A1 WO2010104259 A1 WO 2010104259A1 KR 2009006112 W KR2009006112 W KR 2009006112W WO 2010104259 A1 WO2010104259 A1 WO 2010104259A1
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WO
WIPO (PCT)
Prior art keywords
trocar
sealing member
abdomen
patient
gas
Prior art date
Application number
PCT/KR2009/006112
Other languages
English (en)
Korean (ko)
Inventor
홍두표
Original Assignee
(주)다림써지넷
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)다림써지넷 filed Critical (주)다림써지넷
Publication of WO2010104259A1 publication Critical patent/WO2010104259A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3498—Valves therefor, e.g. flapper valves, slide valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A61B17/3423—Access ports, e.g. toroid shape introducers for instruments or hands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A61B2017/3445—Cannulas used as instrument channel for multiple instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A61B2017/3445—Cannulas used as instrument channel for multiple instruments
    • A61B2017/3449—Cannulas used as instrument channel for multiple instruments whereby the instrument channels merge into one single channel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • A61B2017/3466—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals for simultaneous sealing of multiple instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B2017/348—Means for supporting the trocar against the body or retaining the trocar inside the body
    • A61B2017/3482—Means for supporting the trocar against the body or retaining the trocar inside the body inside
    • A61B2017/3484—Anchoring means, e.g. spreading-out umbrella-like structure
    • A61B2017/3488—Fixation to inner organ or inner body tissue

Definitions

  • the present invention relates to a trocar that supports laparoscopic surgery by opening a small hole without opening the stomach of the patient,
  • the sealing member which seals the outer periphery of the surgical instrument inserted through the trocar and prevents the internal air from leaking out, can be detached and detached from the trocar.
  • a sealing member is detached from the trocar of the present invention and a multi-channel trocar can be mounted and used in an existing trocar.
  • the surgical member when the gas is filled in the body, the surgical member is inserted into the sealing member is naturally inclined toward the center of the bushing, surgical instruments are inserted into the abdomen without traveling to each other,
  • the sealing member tightly seals the outer circumference of the surgical instrument so that the internal air does not leak out through the sealing member, and when the surgical instrument is detached from the sealing member, the opening and closing member immediately closes the instrument hole of the sealing member and leaks air.
  • the present invention relates to a multi-channel trocar which prevents the damage.
  • Laparoscopic surgery is a method of drilling a small hole in the abdomen of the patient and observing the inside of the abdominal cavity through the hole, and is widely used for gallbladder resection, appendectomy, stone removal, and general surgery.
  • the conventional trocar has a single channel structure in which only one surgical instrument is inserted through one trocar.
  • Laparoscopic surgery requires at least three surgical instruments.
  • the first is a laparoscopic forcep to hold tissue during surgery
  • the second is an endoscope for the doctor to observe the inside of the abdominal cavity
  • the third is a therapeutic device (eg, a laser generator, an ultrasound generator) to directly treat the affected part of the patient. , Cutters, etc.).
  • a therapeutic device eg, a laser generator, an ultrasound generator
  • the present invention has been made to solve the above problems, to minimize the damage to the patient's skin by reducing the number of patient's skin damage by reducing the cost of the patient and the material cost of the hospital by allowing a plurality of surgical instruments can be inserted through a single trocar To do it,
  • the sealing member which constitutes the core of the trocar, is made detachable, so that the patient's condition is deteriorated, and inevitably, a plurality of existing single channel trocars in which the trocar and surgical instruments are combined in one-to-one laparoscope are used.
  • surgery is required to reduce the patient's cost burden by separating the sealing member mounted on the multi-channel trocar of the present invention to be mounted on the existing single-channel trocar can be used,
  • the multi-channel trocar of the present invention for achieving the above object is
  • a body having a space portion penetrating up and down
  • a valve member coupled to the outer circumference of the body and injecting gas into the body and discharging gas in the body;
  • a main body covering the upper opening of the body and including a mounting member having a mounting portion
  • a bushing covering the lower body opening of the main body and inserted into the abdomen of the patient;
  • sealing member for sealing the outer periphery of the laparoscopic surgical instruments inserted through to block the outflow of air
  • the mounting member of the main body is made of a soft material, convexly inflated by the gas pressure inside the body, and as inflated, the sealing member mounted on the mounting portion is inclined toward the center of the bushing, and the surgery is coupled to the sealing member. It is characterized in that the direction of the mechanism is free to change.
  • a support cover which is mounted on and supported by an edge of the mounting member and surrounds an upper outer circumference of the body
  • the mounting member is made of a transparent material, characterized in that the lower portion is bent to the outside by the gas pressure inside the body is in close contact with the inner surface of the support cover is formed,
  • a body having a through hole penetrating up and down, and having an insertion groove formed at a lower outer circumferential edge thereof to which an end portion of the mounting member forming the mounting portion is inserted and coupled;
  • An opening / closing member embedded in the body to be disposed below the sealing member to be pushed downward to the surgical instrument to be inserted to open the instrument hole, and to be pushed upward to the gas pressure inside the body to close the instrument hole when the surgical instrument is removed. Characterized in that it further comprises,
  • the sealing member further includes a support member that is inserted into the end of the opening and closing member to support the opening and closing member,
  • the contact surface of the support member and the sealing member is inclined, and their contact surface edges are formed with alignment grooves and alignment protrusions for holding and fixing the contact position,
  • the combination of the close cover, the mounting member and the support cover is rotatably coupled to the outer periphery of the body while being detachable,
  • the combination is characterized in that a plurality of a variety of dimensions and number of the mounting portion provided in the mounting member is provided.
  • the present invention having the configuration as described above can use a variety of surgical instruments with only one multi-channel trocar can minimize the number of abdominal incision site of the patient, also reduce the medical cost burden of the patient, the hospital side Again, fewer trocars can be used to reduce material costs.
  • the multi-channel trocar of the present invention has a trocar structure of the trocar using the characteristics of the navel tissue in the treatment site of the patient, thereby obtaining a trocar having a simple structure, thereby reducing the manufacturing cost.
  • FIG. 1 is a perspective view of a combined multi-channel trocar according to the present invention.
  • FIG. 2 is an exploded perspective view of FIG.
  • 5 and 6 are a partially cutaway perspective view and an exploded perspective view of the sealing member.
  • FIG. 7 is an exploded perspective view of the gas amount adjusting member.
  • FIG. 8 is an exploded perspective view of the filter member.
  • 9 and 10 are combined perspective and exploded perspective views of the single channel trocar.
  • valve member 170 gas amount adjusting member
  • sealing member 310 upper body
  • sealing member 330 opening and closing member
  • Figure 1 is a combined perspective view of a multi-channel trocar according to the present invention
  • Figure 2 is an exploded perspective view of Figure 1
  • Figure 3 is a partial cutaway perspective view of the bushings
  • Figure 4 is an exploded perspective view of the body
  • Figures 5 and 6 Is a partially cutaway perspective view and an exploded perspective view of the sealing member
  • Figure 7 is an exploded perspective view of the gas amount control member
  • Figure 8 is an exploded perspective view of the filter member
  • the trocar according to the present invention seals the periphery 200 inserted into the abdomen of the patient and the outer periphery of the surgical instrument inserted therethrough to prevent the air from flowing in and out of the abdominal cavity.
  • the bushing 200 has a short inner shape of the center and gradually increases in length as it goes up and down, and upper and lower ring members 210 and 220 are respectively coupled to maintain their shape.
  • Hook portion 230 is protrudingly formed on the inner surface of the lower portion, a plurality of grip portions (10) to easily grip the upper ring member 210 to increase the diameter of the ring member 21 to be coupled to the main body 100 ( 240 is protruded outward.
  • the upper part is coupled with the main body 100 and the lower part is inserted into the patient's abdomen to prevent departure.
  • the bushing 200 is inserted into the navel of the abdomen of the patient. It is preferable that the trocar of the present invention is inserted into the navel of the patient's abdomen having softness compared to other tissues, considering that the procedure is performed by inserting a plurality of surgical instruments. This is because it has the advantage of not displaying the incision afterwards.
  • the bushing 200 should be inserted into the small hole that is cut into the abdomen of the patient, so that the diameter (especially the diameter of the lower) has a soft material so as to reduce the external force, but after being inserted into the abdominal hole is easily removed
  • the diameter especially the diameter of the lower
  • it has an elastic material that is restored to a circular shape in the state that no external force other than the external force of the abdomen is added.
  • the upper and lower ring members (210, 220) to help restore the circle.
  • Soft silicone or natural rubber may be used as a material having such characteristics.
  • And ring members (210, 220) are provided at the top and bottom of the bushing, respectively, the bushing is more firmly coupled to the main body 100, so as not to be easily detached from the abdomen of the patient, so as not to deform the shape of the bushing even after long-term use. .
  • hook portion 220 provided on the lower inner surface of the bushing is used to separate the bushing 200 from the abdomen of the patient after the surgery is completed.
  • the main body 100 is separated from the bushing 200, and the finger is inserted into the bushing to grasp the hook 220 or the hook is put into the bushing by pulling on the hook 220 to pull out the bushing. Separate from the abdomen. By removing the trocar in this manner, the trocar can be easily separated while minimizing irritation to the patient's abdominal skin during the trocar removal process.
  • the hook portion 220 is provided on the inner surface of the lower portion of the bushing 200, the hook portion 220 is not in contact with the surgical instrument during the surgery and does not interfere with the surgery. It is desirable to have.
  • the main body 100 includes a body 110, a mounting member 120, a close cover 130, a support cover 140, a fixing member 150, a valve member 160, and a gas amount adjusting member ( 170), including a filter member 180, the lower portion of the bushing 200 is coupled, the upper portion of the sealing member 300 is mounted.
  • the body 110 has a space 111 penetrating up and down,
  • valve member 160 and the fixing member 150 are supported on the coupling groove 117 is supported by the support 113 is formed, the support member 113 is fixed member 150 coupled to the outer periphery of the body
  • the fixing step 119 is fixed to prevent the rotation.
  • the inlet 161 and the outlet 162 of the valve member 160 are connected to the support part 113, and a plurality of distribution holes 112 are connected to the space 111 to distribute gas.
  • the outer periphery of the body is formed with the distribution holes 112, the receiving portion 116 is formed to accommodate the gas amount adjusting member 170 is formed, the valve on the outer peripheral body of the opposite side of the receiving portion 116
  • a step groove 114 having a 'b' shape is formed to which the first step protrusion 164 of the member 160 is inserted and coupled.
  • the second and third step protrusions 164a and b are engaged to assist the valve member to rotate step by step at the outer periphery of the body.
  • the upper outer circumference of the body 110 has a coupling pin groove 115 to which the stepped portion of the coupling pin 135 protruding from the bottom of the close cover 130 is formed in an annular shape.
  • a packing groove 118 is formed in close contact with the inner surface of the cover 140 to insert a packing to prevent the outflow of gas.
  • the mounting member 120 includes a plurality of mounting portions 121 on which a plurality of sealing members 300 are mounted, and an insertion groove 342 formed at an inner surface end of each mounting portion 121 at a lower portion of the sealing member 300.
  • the engaging step portion 122 that is inserted into the hook is formed, and the lower edge is formed to extend outwardly by the gas pressure inside the body to be in close contact with the inner surface of the support cover 140 to close the gap 124. have.
  • the mounting member 120 may be made of a soft material such as silicon, and the mounting portion may be inverted to protrude upward. After the sealing member 300 is coupled in an inverted state, the mounting part is pushed downward to return to the original state. In addition, it expands to protrude concave upward by the internal air pressure. As the mounting member is concavely expanded by the internal air pressure, the mounting portion on which the sealing member is mounted is naturally inclined toward the center of the bushing. Thus, when the surgical instrument is inserted into the sealing member and pushed into the abdomen, the surgical instrument reduces the collision between the surgical instruments without puncturing the trocar.
  • the mounting portion 121 may have various diameters, such as diameters of 3 mm, 5 mm, 12 mm, and 30 mm, to match the sealing member 300 to be mounted.
  • the diameter of 30 mm is the dimension that can accommodate the circular auto suture which has the big dimension among surgical instruments.
  • the close cover 130 is in close contact with the support cover 140 by pressing the upper edge of the mounting member 120.
  • the close cover 130 has an opening 131 in the center to expose the mounting portion 121 while pressing the edge of the mounting member 120, the coupling pin hole formed in the support cover 140 on the lower surface of the edge 145 and the auxiliary coupling pin hole 146, respectively, the insertion coupling coupling pin 135 and the auxiliary coupling pin is formed to protrude.
  • the support cover 140 is assembled and coupled to the close cover 130 to press the edge of the mounting member 120 provided therebetween to eliminate the gap that the gas can flow out, the outer periphery of the body 110 Rotatably coupled thereto.
  • the doctor can arbitrarily adjust the position of the sealing member so that the surgical instruments are positioned at a position convenient for surgery.
  • the fixing member 150 is coupled to the outer periphery of the body 110 while covering the valve member 160, and is fastened to the fixing step 119 so as not to rotate on the outer periphery of the body.
  • the support cover 140 is rotatably coupled to the body, so if you want to rotate the valve member 160 to hold the support that can counter the force of the valve member to rotate Because you need a point.
  • the body 110 is difficult to grip because the exposed portion is less, the support cover is rotatable because it is difficult to counter the rotating force of the valve member is to place the fixing member.
  • the fixing member 150 covers the valve member 160, and has an opening 151 so that the inlet 161 and the outlet 162 are exposed to the outside and the valve member is rotatable in a certain range.
  • the valve member 160 has an inlet 161 through which gas is injected from the outside, and an outlet 162 through which gas is discharged from the outside, and the filter member 180 is accommodated on an inner surface side of the outlet 162.
  • the filter accommodating part 163 is formed.
  • step 1 the inner surface is caught in the step groove 114 of the body by adjusting the rotation angle at the outer periphery of the body of the valve member 160 step 1, 2, 3 step projection to adjust the gas injection amount and discharge step by step (164, 164a, 164b) are formed.
  • valve member 160 As the valve member 160 is rotated in stages, the inlet 161 and the outlet 162 are blocked (connected) or not connected to the distribution hole 112, respectively, thereby controlling the amount of gas injected or discharged step by step. .
  • only gas can be injected, only gas can be discharged, or gas can be injected and discharged at the same time, and the amount of gas can be controlled at the time of gas injection and discharge.
  • the gas amount adjusting member 170 is seated on the outer circumferential receiving portion of the body and is disposed on the plurality of distribution holes 112. And a plurality of distribution holes 172 and 174 facing one-to-one with each distribution hole. Three distribution holes are shown in the figure.
  • Some of the plurality of distribution holes 172 and 174 can distribute gas in both directions and some can distribute only in one direction, ie inside the body.
  • the gas amount adjusting member 170 is provided with an outer plate 171 having a plurality of distribution holes 172, and a plurality of further distribution holes 174 provided inside the outer plate.
  • the distribution hole 174 of the inner plate 173 is provided with a rubber plate 175 for opening and closing the distribution hole 172 of the outer plate 171.
  • one flow hole is capable of outflow and inflow of gas into and out of the body based on the drawing, and the two flow holes are capable of introducing gas into the body due to the rubber plate, but the gas is not discharged out of the body.
  • the inlet 161 is sequentially disposed at the outer periphery of the body having no flow hole and two flow holes that allow gas to flow in only one direction, and the outlet hole 162 is rotated when the valve member 160 rotates in the same direction.
  • the outer periphery of the body and the gas are arranged in a sequential distribution hole that allows the flow of gas in both directions.
  • the filter member 180 is inserted and seated in the filter accommodating portion 163 of the valve member 160 and disposed on the communication holes 112 connected to the outlet 162 among the communication holes 112. Thus, noxious components are removed from the emitted gases.
  • the filter member 180 has a plurality of holes and is disposed between the outer filter case 181 and the inner filter case 182 that are engaged with each other and are disposed between the outer filter case 181 and the inner filter case 182 and discharged. It comprises a filter sheet 183 for directly blocking harmful components of the gas.
  • the filter member 180 is supported by the lower cover 186 coupled to the lower portion of the valve member 160 so as not to be separated from the filter accommodating portion 163.
  • the sealing member 300 includes an upper body 310 and a lower body 350, a sealing member 320, an opening and closing member 330, and a supporting member 340.
  • a plurality of having various sizes (diameter) to fit the diameter of the surgical unit to be coupled is detachably mounted to the mounting member 120 of the main body 100.
  • the upper body 310 and the lower body 340 is coupled to form an accommodation space in which the opening and closing member 330, the support member 340 is accommodated, including the sealing member 320, the sealing member 320 Is wrapped around the outer periphery of the inserted surgical instrument to prevent gas from flowing out through the sealing member 300, and the opening and closing member 330 opens the instrument hole 321 of the sealing member, and the support member 340. ) Supports the opening and closing member.
  • a plurality of fixing pins 311 are formed on the lower surface of the upper body for coupling the upper body 310 and the lower body 350, and the fixing pins 311 are formed on the upper surface of the lower body 350.
  • a plurality of fixing pin holes 351 are inserted and formed.
  • the lower outer periphery of the lower body 350 is inserted into the mounting portion 121 of the mounting member 120 is formed with an insertion groove 352 to be caught on the engaging step portion 122, the upper surface of the lower body 350 In the support member 340 is formed a seating portion 353 is seated.
  • the upper body and the lower body penetrate the upper and lower through-holes (315,355) are formed to accommodate the sealing member, opening and closing member, the support member, the surgical instrument is inserted.
  • the lower body 350 is tightly coupled to the mounting portion 121 to prevent the outflow of gas through the gap, it is preferably made of a soft material so as to be separated from the mounting portion 121 by an external force.
  • the sealing member 320 is made of a material having excellent elasticity if it is soft, such as silicone or natural rubber, so as to closely wrap the outer periphery of the surgical instrument to be inserted therethrough, and an instrument hole 321 is formed in the center through the upper and lower sides. .
  • the lower surface is inclined at an angle to contact the upper surface of the support member 340, the lower end of the alignment protrusion 323 which is seated in the alignment groove 343 of the support member protrudes.
  • the opening and closing member 330 is lowered to one end by the surgical instrument is inserted and inserted below the sealing member 320 and the one end to the axis by the gas pressure inside the body to open and close the instrument hole 321 of the sealing member do.
  • the support member 340 fixes and supports one end of the opening and closing member 330. And the upper surface is inclined at an angle so as to contact the lower surface of the sealing member, the upper outer periphery is formed with an alignment groove (343) is inserted into the alignment projection is seated.
  • FIGS. 9 and 10 illustrate a perspective view and an exploded perspective view according to an example of a single channel trocar in which the sealing member separated in the multi-channel trocar of the present invention is coupled one-to-one.
  • the single channel trocar 600 shown in FIGS. 9 and 10 is a bigo that reveals that it is another invention by the applicant, not a known trocar, and the names of each component are the names used in the multi channel trocar according to their function.
  • the components described in the multi-channel trocar and the components performing finite functions are briefly described.
  • the single channel trocar 600 is an injection tube 610, a body 620, a valve member 630, a filter member 670, a cap 640, an upper fixing member 650, as shown in FIG.
  • the lower fixing member 660 is formed, and the sealing member 300 separated from the multi-channel trocar is coupled to the upper fixing member 650 and the lower fixing member 660 and disposed inside the body 620. do.
  • the inlet tube 610 is inserted into the abdomen of the patient to guide the surgical instrument to be inserted into the patient abdomen, and the sucker shape projection 611 to increase the adhesion so that it is not easily separated from the inserted patient abdomen in the outer peripheral section Many are formed.
  • the body 620 is the inlet pipe 610 is connected to the bottom, the cap 640 is coupled to the top.
  • a valve member 630 is inserted into and coupled to the upper outer circumference stepwise to adjust the injection amount and the discharge amount of the gas, and a lower fixing member 660 is provided at the inner lower portion thereof to fix and seal the sealing member 300.
  • a support 621 on which the lower surface of the valve member 630 is mounted and supported.
  • a plurality of communication holes 625 are formed in the upper portion and communicate with the inside of the body, and the communication holes 625 vary in diameter and are connected to the inlet 631 and the outlet 633 of the valve member.
  • a plurality of step grooves 627 are formed in the support part 621 to adjust the rotational angle of the valve member 630 step by step to adjust the injection amount and discharge amount of the gas.
  • the step groove 627 is coupled to the step protrusion 637 protruding from the lower surface of the valve member 630.
  • a filter member 670 is disposed in the communication hole 625 communicating with the discharge port 633 to remove harmful components of the discharged gas, and a filter seat 629 in which the filter member 670 is seated is disposed inside the body. Formed.
  • the upper portion of the body 'b' shaped detachable groove 623 is formed so that the detachable protrusion 645 protruding on the inner surface of the cap 640 is horizontally moved after the vertical movement is detachably coupled.
  • the valve member 630 has an injection port 631 through which gas is injected and a discharge port 633 through which gas is discharged, and a step protrusion 637 coupled to the step groove 627 of the body 620 is provided at a lower surface of the valve member 630. Is formed, is inserted into the upper outer periphery of the body 620 and coupled, the cap 640 is coupled to cover the opening of the upper.
  • the lower fixing member 660 is fixed to the inside of the body 620 and in communication with the inlet pipe 610.
  • a through hole 661 is formed to be connected to the sealing member and the surgical instrument is inserted therethrough, and the inner wall forming the through hole is inclined to be in close contact with the lower outer surface of the sealing member.
  • the through hole 661 is formed with a moving hole 663 connected to the inlet tube 610 to allow gas to move between the abdomen and the inner space of the body.
  • a fixing hole 665 for fixing is formed.
  • the upper fixing member 650 includes an insertion part 651 into which the protrusion 643 protruding from the cap 640 is inserted and fixed, and a cover part 653 covering the upper outer circumference of the sealing member 300.
  • the cap 640 has an insertion hole 641 through which the surgical instrument is inserted through the top and bottom thereof, and a protrusion 643 in which the upper fixing member 650 is inserted and the insertion hole is formed in the lower inner surface thereof. ) Is formed, the lower inner wall is formed with a detachable protrusion 645 detachably coupled to the detachable groove 623 of the body 620.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Vascular Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

La présente invention concerne un trocart qui permet la chirurgie laparoscopique dans l'abdomen à travers de petites incisions sans ouvrir l'abdomen. Plus spécifiquement, la présente invention concerne un trocart doté d'un élément d'étanchéité multivoies, particulièrement amovible caractérisé en ce que les incisions de l'abdomen d'un patient sont réduites au minimum en montant diverses sortes d'instruments chirurgicaux sur un seul trocart de chirurgie laparoscopique, en ce que la charge de coûts d'un patient est soulagée en utilisant un petit nombre de trocarts, en ce qu'un élément d'étanchéité permettant de prévenir l'entrée et la sortie de gaz peut être fixé à un trocart ou détaché de celui-ci, et en ce que l'élément d'étanchéité peut être séparé du trocart de la présente invention afin d'être utilisé monté sur le trocart existant au cas où de multiples parties de l'abdomen doivent être incisées et qu'une pluralité de trocarts existants (c'est-à-dire des trocarts à travers lesquels un seul instrument chirurgical est introduit et inséré) doivent être utilisés en raison de la détérioration de l'état de santé d'un patient. Le trocart multivoies de la présente invention comprend un corps principal qui comprend un corps présentant un espace entre les parties supérieure et inférieure du corps principal, une soupape couplée à la circonférence externe du corps qui injecte du gaz dans le corps et qui évacue le gaz de l'intérieur du corps, et un élément de montage qui recouvre l'ouverture supérieure du corps et qui est doté d'une bague de raccordement ; une douille de trocart qui recouvre l'ouverture inférieure du corps et qui est insérée dans l'abdomen d'un patient, et un élément d'étanchéité qui est monté sur la bague de raccordement de l'élément de montage et qui rend étanche la circonférence externe des instruments laparoscopiques introduits et insérés pour bloquer la sortie d'air. En outre, parce que la bague de raccordement de la présente invention est en matériau souple, elle est gonflée de façon convexe par la pression du gaz à l'intérieur du corps et l'élément d'étanchéité monté sur la bague de raccordement est incliné vers le centre de la douille de trocart par le gonflement.
PCT/KR2009/006112 2009-03-13 2009-10-22 Trocart multivoies WO2010104259A1 (fr)

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