WO2020213881A1 - 스텐트 딜리버리 장치 - Google Patents
스텐트 딜리버리 장치 Download PDFInfo
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- WO2020213881A1 WO2020213881A1 PCT/KR2020/004739 KR2020004739W WO2020213881A1 WO 2020213881 A1 WO2020213881 A1 WO 2020213881A1 KR 2020004739 W KR2020004739 W KR 2020004739W WO 2020213881 A1 WO2020213881 A1 WO 2020213881A1
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- Prior art keywords
- stopper
- tube
- handle
- circumferential surface
- delivery device
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- 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
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- 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
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- A—HUMAN NECESSITIES
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3468—Trocars; Puncturing needles for implanting or removing devices, e.g. prostheses, implants, seeds, wires
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1482—Probes or electrodes therefor having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9522—Means for mounting a stent or stent-graft onto or into a placement instrument
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- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
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- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
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- A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
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- A61B2018/00053—Mechanical features of the instrument of device
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- A61B2018/00071—Electrical conductivity
- A61B2018/00077—Electrical conductivity high, i.e. electrically conducting
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- A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
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- A61B2018/00482—Digestive system
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- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00601—Cutting
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- A61B2018/00982—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/03—Automatic limiting or abutting means, e.g. for safety
- A61B2090/033—Abutting means, stops, e.g. abutting on tissue or skin
- A61B2090/034—Abutting means, stops, e.g. abutting on tissue or skin abutting on parts of the device itself
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
Definitions
- the present disclosure relates to a stent delivery device.
- a stent is a medical device that is inserted into a specific area inside a human body, and expands and maintains a constricted conduit to its original size.
- a method of installing a stent in a specific part of the body by placing a catheter with a stent inside the body and discharging the stent to the outside of the catheter has been widely used.
- Korean Utility Model Publication No. 20-0484392 a technology for a medical catheter capable of installing a stent has been suggested.
- pancreatic pseudocyst is an inflammatory cystic lesion caused by leakage of pancreatic fluid when the pancreatic duct is blocked and burst due to pancreatitis, pancreatic trauma or surgery. As the pseudocyst increases, pressure is applied to the stomach or neighboring organs. It is a disease that requires prompt treatment.
- a procedure for puncturing the pseudocyst and discharging the contents of the pseudocyst is used by installing a stent at the perforated area.
- conventional stent installation catheter puncture the pseudocyst and insert a stent at the perforated site. Since the structure is not suitable for installation, it is required to develop a technology that facilitates perforation and stent installation in the treatment of pseudocysts.
- the technical idea of the present disclosure is to solve the above-described problem, and an object thereof is to provide a technique that facilitates perforating the pseudocyst and installing a stent at the perforated site during the treatment of the pseudocyst.
- a stent delivery device includes a housing having a hollow formed in a length direction; A body portion coupled to one side of the housing and having a predetermined length; And a handle part penetratingly coupled to the body part so as to slide along the length direction of the body part, wherein a stopper for limiting the slide movement of the handle part is formed in a partial area of the outer circumferential surface of the body part, the handle part When the outer circumferential surface is rotated at a certain angle along the circumferential direction, the movement restriction by the stopper is released, so that the slide movement of the handle part is possible.
- the stent delivery device includes: a first tube penetrating through the handle portion; And a shaft having a first tube moving passage therein so that the first tube can move, wherein a plurality of protruding members are formed at regular intervals on an outer circumferential surface of the shaft, and the housing includes the plurality of protruding members It may include; a housing advancing member for controlling the advancing and retreating of the housing by being selectively inserted into the spaced space formed by.
- the stent delivery device is coupled to one side of the body portion, the head portion provided with an electrode therein; A second tube penetrating through the first tube and having one end coupled to the head portion; A third tube having a diameter smaller than that of the second tube and having one end coupled to the head portion; And a tip portion coupled to the other end of the third tube and made of an insulating material, and a conductive member may be coupled to an outer circumferential surface of the tip portion to transmit a current applied to the electrode.
- the handle portion includes a first tube fixing member coupled while surrounding at least a portion of the outer peripheral surface of the first tube, wherein the first tube fixing member includes a fixing portion surrounding and fixing the first tube, and from the fixing portion It has an extended leg portion, and a plurality of locking projections may be formed in the handle portion so that both ends of the leg portion can be caught so that the first tube fixing member moves together when the handle portion slides.
- a guide hole is formed on an outer circumferential surface of the body portion in the longitudinal direction of the body portion, and when the handle portion slides, the leg portion may move along the guide hole.
- the stopper is formed along the circumferential direction of the outer peripheral surface of the body, the first stopper protruding from a partial area of the outer peripheral surface of the body; And a second stopper that is spaced apart from the first stopper in a longitudinal direction of the body portion and protrudes from a partial area of an outer peripheral surface of the body portion, wherein the first stopper includes the It protrudes along a part of the outer circumference of the body part, and the second stopper protrudes along another part of the circumference of the outer circumference of the body part, and the inside of the handle part is moved to be caught by the first stopper or the second stopper when the handle part slides.
- a limiting member may be formed.
- the current applied to the electrode is transmitted to the conductive member, it is easy for the tip end to penetrate the tissue. In other words, there is an effect that the perforation of the wall of the stomach or pancreas is easily made.
- the first stopper when deploying the stent to the perforated area, can release the stent movement through the rotation of the handle, so the stent can be first deployed, and if the handle is rotated again after the first stent deployment, Since the movement restriction by the second stopper is released, the stent can be deployed secondarily.
- the handle portion rotates around the body portion, thereby releasing the movement restriction by the first stopper, and the handle portion between the first stopper and the second stopper.
- the stent is first deployed.
- the handle portion is rotated again to release the movement restriction by the second stopper, and when the handle portion is moved to the head portion, the stent is secondarily deployed.
- the user can easily release the movement restriction by the stopper by rotating the handle part with only the force of the thumb, so there is an advantage of convenient operation.
- each stopper since movement restriction by each stopper can be easily released through rotation of the handle during the first deployment and the second deployment of the stent, it is safe to prevent the second deployment after the first deployment of the stent. Compared to the method of displacing the stent secondary by separating the device, it is easier to install the stent, and it is possible to safely deploy the stent without a separate safety device that prevents the stent from unfolding.
- FIG. 1 is a perspective view schematically showing a stent delivery device according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view schematically showing a stent delivery device according to an embodiment of the present invention.
- FIG 3 is a partial cross-sectional perspective view schematically showing the inside of a handle according to an embodiment of the present invention.
- FIG. 4 schematically illustrates a state in which the tip of the stent delivery device according to an embodiment of the present invention is in contact with the stomach wall.
- FIG. 5 schematically shows a state in which the stent is first deployed after the stent delivery device according to an embodiment of the present invention punctures the stomach wall and the pseudocyst.
- FIG. 6 schematically shows a state in which a stent first deployed by a stent delivery device according to an embodiment of the present invention is in close contact with an inner wall of a pseudocyst.
- FIG. 7 is a schematic diagram illustrating a state in which the stent is secondarily deployed by the stent delivery apparatus according to an embodiment of the present invention.
- references to “one” or “one” embodiment of the present invention in this specification are not necessarily to the same embodiment, and they mean at least one.
- FIG. 1 is a perspective view schematically showing a stent delivery device according to an embodiment of the present invention
- Figure 2 is an exploded perspective view schematically showing a stent delivery device according to an embodiment of the present invention
- Figure 3 is the present invention It is a partial cross-sectional perspective view schematically showing the inside of the handle according to an embodiment of.
- the stent delivery device 10 includes a housing 100, a body part 200, a handle part 300, a first tube 400, a shaft ( 500), a head part 600, a second tube 700, a third tube 800, and a tip part 900 may be included.
- the housing 100 is a body provided to be held by a user by hand, and a connector 120 may be extended to one side of the housing 100.
- a hollow is formed in the housing 100 in the longitudinal direction of the housing 100.
- the housing advancing member 110 may be inserted perpendicular to the longitudinal direction of the housing 100.
- the housing advancing member 110 may have a first hole 111 having an inner diameter larger than an outer diameter of the protruding members 520 and 530 to be described later.
- a second hole 112 having an inner diameter smaller than an outer diameter of the protruding members 520 and 530 may be formed in the housing advancing member 110 in contact with the first hole 111.
- the body portion 200 may be implemented as a tube having a certain length.
- One side of the body portion 200 may be coupled to the connector 120 of the housing 100, and the other side may be coupled to the head portion 600.
- a stopper 210 may be formed in a partial area of the outer circumferential surface of the body portion 200 to limit the slide movement of the handle portion 300 to be described later.
- the stopper 210 may include a first stopper 211 and a second stopper 212.
- the first stopper 211 is formed along the circumferential direction of the outer circumferential surface of the body part 200, and may protrude in a partial area of the outer circumferential surface of the body part 200.
- the second stopper 212 is formed to be spaced apart from the first stopper 211 in the longitudinal direction of the body part 200, and may protrude in a partial area of the outer peripheral surface of the body part 200.
- the first stopper 211 may protrude along a portion of the circumference of the outer circumferential surface of the body portion 200, and the second stopper 212 is the body portion 200 ) May protrude along the other part of the periphery of the outer peripheral surface.
- a guide hole 220 may be formed at a lower side of the outer circumferential surface of the body part 200 along the length direction of the body part 200. That is, the guide hole 220 may be formed from one end of the body portion 200 to the other end.
- the handle part 300 may slide along the length direction of the body part 200 in a state in which the body part 200 is penetratingly coupled. A space in which at least a portion of the connection pipe 120 and the body portion 200 can be inserted is formed in the handle portion 300. Therefore, when the handle part 300 is close to the housing 100, the connection pipe 120 may be inserted into the inner space of the handle part 300.
- the first tube 400 may be coupled through the handle portion 300.
- the first tube fixing member 310 may be disposed in the inner space of the handle part 300.
- the first tube fixing member 310 may surround at least a part of the outer circumferential surface of the first tube 400 and may maintain a coupled state with the first tube 400.
- the first tube fixing member 310 may include a fixing portion 311 that surrounds and fixes the first tube 400 and a leg portion 312 extending from the fixing portion 311 to one side. .
- the inner space of the handle portion 300 so that the first tube fixing member 310 moves together with the handle portion 300 A plurality of locking projections 320 and 330 are formed in which both ends of the leg portion 312 can be caught. That is, since the leg portion 312 is located between the first and second locking jaws 320 and 330, when the handle portion 300 moves in the longitudinal direction of the body portion 200, the leg portion 312 ) Can also be moved in the same direction as the moving direction of the handle part 300.
- a guide hole 220 is formed on the outer circumferential surface of the body portion 200 in the longitudinal direction of the body portion 200, and the leg portion 312 remains inserted into the guide hole 220, so that the handle portion During the slide movement of the 300, the leg 312 may move along the guide hole 220.
- a movement limiting member 340 protruding along a portion of the inner circumferential surface may be installed in the inner space of the handle part 300.
- the first stopper 211 or the second stopper 212 and the movement limiting member 340 are caught while being in contact with each other. Movement can be limited to a specific section.
- the handle part 300 when the handle part 300 is rotated at a certain angle along the circumferential direction of the outer circumferential surface, the movement restriction by the first stopper 211 or the second stopper 212 is released, so that the slide movement of the handle part 300 is prevented. It is possible. For example, when the movement limiting member 340 is caught by the first stopper 211, the slide movement of the handle portion 300 is restricted, and when the handle portion 300 is rotated by 180°, the first stopper ( Since the movement restriction by 211) is released, the handle part 300 may slide to a point between the first stopper 211 and the second stopper 212.
- the handle part 300 may slide to the head part 600.
- At least one pressing groove (350, 360) concavely formed so as to be easily pressed with a thumb may be provided on the front of the outer circumferential surface of the handle unit 300, and the pressing groove 350 on the front surface may also be provided at the rear of the handle unit 300.
- a separate pressing groove may be formed at a position corresponding to 360).
- the shaft 500 is provided in a cylindrical shape, and the shaft 500 may be inserted into the hollow of the housing 100.
- a first tube movement passage 510 which is a space in which the first tube 400 can move, is formed inside the shaft 500.
- a plurality of protruding members 520 and 530 may be formed on the outer circumferential surface of the shaft 500 to be spaced apart at regular intervals. Each of the protruding members 520 and 530 may be formed to protrude along the periphery of the outer circumferential surface of the shaft 500.
- the shaft 500 is coupled through the first hole 111 or the second hole 112 of the housing advancing member 110 inserted into the housing 100.
- the housing advancing member 110 may be selectively inserted into the spaced space 540 formed by the plurality of protruding members 520 and 530 to control the advancing and retreating of the housing 100.
- the first hole 111 becomes close to the shaft 500
- the second hole 112 It comes close to this shaft 500.
- the first hole 111 has an inner diameter larger than the outer diameters of the protruding members 520 and 530, so that the housing 100 is formed along the length direction of the shaft 500. Can move freely.
- the second hole 112 is close to the shaft 500, the movement of the housing 100 is restricted due to the insertion of the second hole 112 into the space 540 and the housing 100 is no longer not moving.
- the shaft fixing member 550 is a device that fixes the position of the shaft 500 and may be installed at one end of the shaft 500.
- a plurality of irregularities may be formed on the inner circumferential surface of the shaft fixing member 550 to be fastened to an endoscope channel inlet (not shown).
- the shaft fixing member 550 may be configured integrally with the shaft 500.
- the shaft fixing member 550 is fastened to the endoscope channel inlet through rotation, and the shaft 500 may also be rotated when the shaft fixing member 550 rotates.
- the shaft 500 has a cylindrical shape, and the second hole 112 is formed in a rounded rim of the second hole 112 of the housing advancing member 110 so that the second hole 112 is in the space 540 Even if it is inserted and the movement of the housing 100 is restricted, the shaft 500 can be rotated freely. Therefore, it is possible to rotate the shaft 500 regardless of the movement of the housing 500 to be coupled to or separated from the endoscope channel inlet.
- the head part 600 may be coupled to the body part 200, and an electrode 610 may be provided inside the head part 600.
- the second tube 700 may be coupled through the first tube 400, and one end may be coupled to the head portion 600 to be fixed.
- the third tube 800 has a diameter smaller than that of the second tube 700 and is penetrated into the second tube 700. One end of the third tube 800 may be coupled to and fixed to the head portion 600, and a tip portion 900 may be coupled to the other end.
- the tip portion 900 has a truncated cone shape with a vertex cut off, and may be made of an insulating material (for example, ceramic).
- a through hole 920 may be formed inside the tip portion 900 so that the guide wire 30 may be coupled through.
- a conductive member 910 may be coupled to an outer peripheral surface of the tip portion 900.
- the conductive member 910 may be made of stainless steel.
- an electric wire (not shown) having one end connected to the electrode 610 is connected to the conductive member 910 via a space between the second tube 700 and the third tube 800, so that the electrode 610 The current applied to may be transmitted to the conductive member 910.
- the wire may be applied as a copper wire.
- FIG. 4 schematically shows a state in which the tip portion 900 of the stent delivery apparatus according to an embodiment of the present invention contacts the stomach wall 20.
- the guide wire 30 passes through the inside of the first tube 400 and passes through a through hole 920 formed in the inside of the tip portion 900.
- the tip portion 900 may move along the guide wire 30 to access the upper wall 20. Specifically, after pressing the housing advancing member 110 in one direction, when the position of the housing 100 is adjusted in the direction of the upper wall 20, the tip 900 moves toward the upper wall 20 and the conductive member 910 is It comes into contact with the stomach wall 20.
- the power supply 40 is connected to the electrode 610, when the position of the housing 100 is further moved in the same direction and current is supplied to the electrode 610, current is transmitted to the conductive member 910 and the tip ( 900) will pierce the gastric wall (20) and pseudocyst (60). After the distal end 900 penetrates the stomach wall 20 and the pseudocyst 60, the housing advancing member 110 is pressed in the other direction to fix the position of the housing 100. Also, the power supply 40 may be separated from the electrode 610.
- FIG. 5 schematically shows a state in which the stent is first deployed after the stent delivery device according to an embodiment of the present invention punctures the stomach wall and the pseudocyst.
- the handle part 300 is rotated 180° to release the movement restriction by the first stopper 211, and then the handle part 300 is moved to the first stopper 211 and the second stopper 212.
- the first tube 400 is also moved according to the movement of the handle part 300.
- one end of the stent 50 loaded in the first tube 400 is exposed to the outside of the first tube 400.
- the other end of the stent 50 remains in close contact with the second tube 700, so when the first tube 400 is moved, the stent 50 is pushed back or does not move together with the first tube 400.
- the position of 50 can be maintained stably.
- FIG. 6 schematically shows a state in which the stent first deployed by the stent delivery device according to an embodiment of the present invention is in close contact with the inner wall of the pseudocyst.
- the housing advancing member 110 when the housing advancing member 110 is pressed in one direction and the position of the housing 100 is adjusted in the direction of the head part 600, the stent 50 exposed to the outside of the first tube 400 As it moves in the direction of the head part 600, it is in close contact with the inner wall of the pseudocyst 60.
- the housing advancing member 110 is pressed again in the other direction to fix the position of the housing 100.
- FIG. 7 is a schematic diagram illustrating a state in which the stent is secondarily deployed by the stent delivery apparatus according to an embodiment of the present invention.
- the handle portion 300 is moved in the direction of the head portion 600, the first tube 400 is also moved according to the movement of the handle portion 300.
- the other end of the stent 50 installed in the first tube 400 is completely exposed to the outside of the first tube 400, and the installation of the stent 50 is terminated.
- the current applied to the electrode 610 is transmitted to the conductive member 910, it is easy for the tip portion 900 to penetrate the tissue. That is, there is an effect that the gastric wall 20 or the pancreatic wall is easily perforated.
- the movement restriction by the first stopper 211 is released through the rotation of the handle part 300, so that the stent 50 can be first deployed, and the stent ( If the handle part 300 is rotated again after the first deployment of 50), the movement restriction by the second stopper 212 is released, so that the stent 50 can be deployed secondarily.
- the handle portion 300 rotates about the body portion 200 as the first stopper 211
- the movement restriction by may be released, and when the handle part 300 is moved to a point between the first stopper 211 and the second stopper 212, the stent 50 is first deployed. And, when the handle portion 300 reaches between the first stopper 211 and the second stopper 212, the handle portion 300 is rotated again to release the movement restriction by the second stopper 212, and the handle When the part 300 is moved to the head part 600, the stent 50 is secondarily deployed.
- the body portion 200 is formed in a cylindrical shape to facilitate the rotation of the handle portion 300, and the user can easily release the movement restriction by the stopper 210 by rotating the handle portion 300 with only the force of the thumb. Therefore, it has the advantage of convenient operation.
- the movement restriction by the stoppers 211 and 212 can be easily released through the rotation of the handle part 300 during the first deployment and the second deployment of the stent 50.
- the stent 50 is easier to install than the second deployment method by separating the safety device for preventing the second deployment, and the stent 50 deployment is not It is possible to safely deploy the stent 50 without having a separate safety device preventing it from happening.
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Abstract
Description
Claims (6)
- 길이 방향으로 중공이 형성된 하우징;상기 하우징의 일측과 결합되고, 일정한 길이를 갖는 몸체부; 및상기 몸체부의 길이 방향을 따라서 슬라이드 이동할 수 있도록 상기 몸체부와 관통 결합된 손잡이부;를 포함하고,상기 몸체부의 외주면의 일부 영역에는 상기 손잡이부의 슬라이드 이동을 제한하는 스토퍼가 형성되되, 상기 손잡이부가 상기 외주면의 둘레 방향을 따라 일정 각도로 회전될 경우에는 상기 스토퍼에 의한 이동 제한이 해제되어 상기 손잡이부의 슬라이드 이동이 가능한 것을 특징으로 하는스텐트 딜리버리 장치.
- 제1항에 있어서,상기 스텐트 딜리버리 장치는상기 손잡이부의 내부에 관통 결합된 제1튜브; 및상기 제1튜브가 이동할 수 있도록 제1튜브 이동통로가 내부에 형성된 샤프트;를 더 포함하고,상기 샤프트의 외주면에는 복수의 돌출부재가 일정한 간격으로 이격되어 형성되고,상기 하우징은상기 복수의 돌출부재에 의해 형성된 이격 공간에 선택적으로 삽입됨으로써 상기 하우징의 진퇴를 조절하는 하우징 진퇴부재;를 포함하는 것을 특징으로 하는스텐트 딜리버리 장치.
- 제1항에 있어서,상기 스텐트 딜리버리 장치는상기 몸체부의 일측과 결합되고, 내부에 전극이 마련된 헤드부;상기 제1튜브 내에 관통 결합되며, 일단이 상기 헤드부에 결합된 제2튜브;상기 제2튜브 보다 작은 직경을 가지며, 일단이 상기 헤드부에 결합된 제3튜브; 및상기 제3튜브의 타단에 결합되고, 절연성 재질로 이루어진 선단부;를 더 포함하고,상기 전극에 인가된 전류를 전달하도록 상기 선단부의 외주면에는 전도성 부재가 결합된 것을 특징으로 하는스텐트 딜리버리 장치.
- 제2항에 있어서,상기 손잡이부는상기 제1튜브의 외주면의 적어도 일부를 감싸며 결합된 제1튜브 고정부재;를 포함하고,상기 제1튜브 고정부재는 상기 제1튜브를 감싸며 고정하는 고정부분과, 상기 고정부분으로부터 연장 형성된 다리부분을 가지며,상기 손잡이부의 슬라이드 이동시 상기 제1튜브 고정부재가 함께 이동되도록 상기 손잡이부의 내부에는 상기 다리부분의 양단이 걸릴 수 있는 복수의 걸림턱이 형성된 것을 특징으로 하는스텐트 딜리버리 장치.
- 제4항에 있어서,상기 몸체부의 외주면에는 상기 몸체부의 길이 방향으로 가이드 홀이 형성되며, 상기 손잡이부의 슬라이드 이동시 상기 다리부분이 상기 가이드 홀을 따라서 이동하는 것을 특징으로 하는스텐트 딜리버리 장치.
- 제1항에 있어서,상기 스토퍼는상기 몸체부의 외주면 둘레 방향을 따라 형성되되, 상기 몸체부의 외주면 일부 영역에 돌출 형성된 제1스토퍼; 및상기 제1스토퍼와는 상기 몸체부의 길이방향으로 이격되며, 상기 몸체부의 외주면 일부 영역에 돌출 형성된 제2스토퍼;를 포함하고,상기 몸체부의 외주면 둘레를 기준으로 볼 때, 상기 제1스토퍼는 상기 몸체부의 외주면 둘레 일부를 따라서 돌출되고, 상기 제2스토퍼는 상기 몸체부의 외주면 둘레 다른 일부를 따라서 돌출되며,상기 손잡이부의 내부에는 상기 손잡이부의 슬라이드 이동시 상기 제1스토퍼 또는 제2스토퍼에 걸릴 수 있는 이동제한부재가 형성된 것을 특징으로 하는스텐트 딜리버리 장치.
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JP2021559020A JP7255917B2 (ja) | 2019-04-18 | 2020-04-08 | ステントデリバリー装置 |
EP20791356.7A EP3957282A4 (en) | 2019-04-18 | 2020-04-08 | STENT INSERTION DEVICE |
CN202080029434.8A CN113766890A (zh) | 2019-04-18 | 2020-04-08 | 支架递送装置 |
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KR1020190045739A KR102244846B1 (ko) | 2019-04-18 | 2019-04-18 | 스텐트 딜리버리 장치 |
KR10-2019-0045739 | 2019-04-18 |
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WO2024006759A1 (en) * | 2022-06-29 | 2024-01-04 | Merit Medical Systems, Inc. | Resilience adaptive stent delivery device and methods |
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- 2020-04-08 EP EP20791356.7A patent/EP3957282A4/en active Pending
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- 2020-04-08 WO PCT/KR2020/004739 patent/WO2020213881A1/ko active Application Filing
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JP7255917B2 (ja) | 2023-04-11 |
EP3957282A1 (en) | 2022-02-23 |
CN113766890A (zh) | 2021-12-07 |
EP3957282A4 (en) | 2022-12-21 |
JP2022528410A (ja) | 2022-06-10 |
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