WO2022124444A1 - Dispositif d'agrafage chirurgical - Google Patents

Dispositif d'agrafage chirurgical Download PDF

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Publication number
WO2022124444A1
WO2022124444A1 PCT/KR2020/017985 KR2020017985W WO2022124444A1 WO 2022124444 A1 WO2022124444 A1 WO 2022124444A1 KR 2020017985 W KR2020017985 W KR 2020017985W WO 2022124444 A1 WO2022124444 A1 WO 2022124444A1
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WO
WIPO (PCT)
Prior art keywords
unit
protrusion
drive shaft
surgical staple
handle
Prior art date
Application number
PCT/KR2020/017985
Other languages
English (en)
Korean (ko)
Inventor
정권호
Original Assignee
주식회사 메디튤립
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
Priority claimed from KR1020200169910A external-priority patent/KR102610685B1/ko
Priority claimed from KR1020200169911A external-priority patent/KR102554909B1/ko
Application filed by 주식회사 메디튤립 filed Critical 주식회사 메디튤립
Publication of WO2022124444A1 publication Critical patent/WO2022124444A1/fr

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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/064—Surgical staples, i.e. penetrating the tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • 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

Definitions

  • the present invention relates to a surgical staple device, and more particularly, to a surgical staple device having a simple configuration and improved operability and safety.
  • a surgical staple device is used to clamp or cut tissue and to staple the clamped or cut tissue.
  • the surgical staple device has a mechanism for clamping or cutting tissue and a mechanism for driving a staple through the tissue.
  • the surgical stapling device has a configuration of a plurality of triggers and handles together with complex mechanisms for providing clamping or proper stapling of the cut tissue.
  • such a complex mechanism may be a potential cause of device failure or user confusion.
  • such a complicated mechanism increases the number of parts, which makes the configuration complicated, and may also cause the manufacturing process to be complicated.
  • the surgical stapling device As the surgical stapling device is used in a surgical operation, it must be operated to clamp or cut tissue only when the user intends to, or to staple the cut tissue. Accordingly, there is a need for a surgical staple device having improved operability and safety without having a complicated mechanism.
  • the technical problem to be achieved by the present invention is to provide a surgical staple device having a simple configuration and improved operability and safety.
  • an embodiment of the present invention includes a loading unit having a cutter for excising body tissue and a staple for sealing the ablation site, and the loading unit is detached and to control the operation of the loading unit
  • a surgical staple device comprising a handle unit for: a handle case unit; a drive shaft portion provided to reciprocate in the front-rear direction inside the handle case portion and for pushing the cutter forward while moving forward; and a locking part disposed adjacent to the front end of the drive shaft and provided to be elevating on the handle case part to prevent forward movement of the drive shaft, wherein the locking part is protected from external force at the upper side of the front end of the drive shaft.
  • It provides a surgical staple device, characterized in that it comprises a lifting body provided to be lifted by the lifting body, characterized in that the vertical movement of the lifting body is guided by the handle case portion.
  • the locking part is provided between the elevating body and the handle case part, the upper end is in close contact with the handle case part, and the lower end is in close contact with the upper part of the elevating body so that the elevating body is moved downward. It may have a lifting body elastic member for supporting.
  • a recess into which the lower end of the elastic member of the elevating body is inserted may be formed in the upper portion of the elevating body.
  • an operation handle portion provided to be hinged on the handle case portion; And it is provided to be hinged to rotate on the operation handle portion, and may include a latch portion caught on the lower surface of the drive shaft portion to push the drive shaft portion.
  • the locking portion is formed to extend downwardly from one end of the elevating body, and when the elevating body is in a lowered state, the lower end is located below the lower surface of the drive shaft portion, so that the lower surface of the drive shaft portion It may have a guide protrusion for guiding the clasp portion moved in close contact with the drive shaft to be separated from the lower surface.
  • the handle unit is provided to reciprocate in the front and rear directions on the inside of the handle case part, and when the loading unit is coupled, it is pressed by the loading unit to move backward while moving the locking part upward.
  • the clasp may include a lock release unit that allows the drive shaft to be pushed forward.
  • the locking part is formed to protrude from one end of the elevating body, and has a first inclined protrusion having a first inclined surface that is pressed by the unlocking part when the unlocking part is moved rearward, When the first inclined protrusion is pressed by the unlocking unit to move upward, the lower end of the guide protrusion may be located above the lower surface of the drive shaft.
  • the block housing is provided to reciprocate in the front and rear directions in front of the unlocking unit, and when the loading unit is coupled, it is pressed by the loading unit and moves backward while pressing the unlocking unit backward. and a front end of the unlocking unit may be inserted and coupled to a rear end of the block housing unit.
  • the unlocking portion is provided to reciprocate in the front and rear directions inside the handle case portion, and a body bar having a long hole extending in the front and rear direction, and the rear end is inserted into the long hole and the rear end is the handle case portion It is in close contact with the front end portion is in close contact with the front end of the long hole may have a body bar elastic member for elastically supporting the body bar in the front.
  • a locking projection is formed to protrude from the front end of the unlocking unit, and an insertion portion into which the locking projection is inserted may be formed on the rear end of the block housing unit.
  • the unlocking portion is formed on the front end of the body bar, has a first flange in which the locking projection is formed on the front side, the block housing portion is formed to face the first flange, the rear It may have a second flange in which the insertion portion is formed.
  • the insertion portion is formed to protrude from the second flange in the circumferential direction
  • the first ring-shaped protrusion is formed to protrude along the circumferential direction to the second flange, and is formed to be spaced apart from the first ring-shaped protrusion. It has a second ring-shaped projection forming an insertion groove between the first ring-shaped projection, the locking projection may be inserted into the insertion groove.
  • the handle case portion has a fixing protrusion extending to the inner rear of the long hole, and the rear end of the elastic member may be in close contact with the front end of the fixing protrusion.
  • the handle case part has a pair of body bar guide ribs extending in the front and rear directions from the upper and lower sides of the body bar so that the body bar is inserted and guiding the front and rear movement of the body bar.
  • the handle case part may have a separation prevention protrusion formed to protrude from the guide rib to prevent separation of the body bar.
  • the drive shaft portion may have a first fixing groove formed on an upper surface, and the locking portion may have a stop protrusion inserted into the first fixing groove to restrict forward movement of the drive shaft portion.
  • the drive shaft portion has a second fixing groove recessed in the upper portion, a rotation bar provided to be rotated in the handle case unit from an upper side of the second fixing groove, and on the outer peripheral surface of the rotation bar
  • An auxiliary locking unit having a protrusion formed to protrude and inserted into the second fixing groove, and a rotating bar elastic member that provides an elastic restoring force so that the protrusion presses the second fixing groove backward to restrict the forward movement of the drive shaft part.
  • the locking part has extension protrusions extending in a vertical direction to both ends of the elevating body, and the handle case part is formed to extend in the up-down direction so that the extension protrusions are inserted, and the elevating and lowering of the extension protrusions It may have a pair of extended protrusion guide ribs for guiding movement.
  • connection unit coupled to the front end of the handle unit and from which the loading unit is detachable, wherein the loading unit has an insertion protrusion protruding from the outer peripheral surface of the rear end, the connection unit
  • the front end is formed to protrude from the inner circumferential surface, and is spaced apart along the circumferential direction to have a receiving protrusion for inserting the insertion protrusion, the insertion protrusion may have a tapered rear end, and a front end of the receiving protrusion may be tapered.
  • the lower end of the guide protrusion when the loading unit is not coupled to the handle unit, the lower end of the guide protrusion is located lower than the lower surface of the drive shaft. You can guide it to fall off. Accordingly, since the clasp does not push the drive shaft forward, even if the user unintentionally pulls the operation handle in a state in which the loading unit is not engaged, the cutter and staple of the loading unit may not work.
  • a locking projection is formed on the front end of the unlocking unit, and an insertion portion is formed on the rear end of the block housing so that the locking projection is inserted, so that the unlocking part and the block housing part can be firmly coupled to each other have.
  • the insertion protrusion of the loading unit has a tapered rear end
  • the receiving protrusion formed on the adapter of the connection unit has a tapered front end, so that it is easy to insert the receiving protrusion into the insertion space between the receiving protrusions. can do.
  • FIG. 1 is a perspective view showing a surgical staple device according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing the inside of the handle unit in the surgical staple device according to an embodiment of the present invention.
  • FIG. 3 is a perspective view showing the handle case part removed in FIG. 2 .
  • FIG 4 and 5 are perspective views showing the drive shaft of the surgical staple device according to an embodiment of the present invention.
  • FIGS. 6 and 7 are perspective views illustrating a locking unit of the surgical staple device according to an embodiment of the present invention.
  • FIG. 8 is a perspective view illustrating a portion of a handle case portion of the surgical staple device according to an embodiment of the present invention.
  • FIG. 9 is a perspective view illustrating a portion “A” of FIG. 8 .
  • FIG 10 is an exemplary view for explaining the operation of the stopper portion and the clasp in the surgical staple device according to an embodiment of the present invention.
  • FIG. 11 is a perspective view showing the auxiliary locking unit of the surgical staple device according to an embodiment of the present invention.
  • FIG. 12 is a perspective view showing the unlocking part of the surgical staple device according to an embodiment of the present invention.
  • FIG. 13 and 14 are perspective views illustrating the unlocking unit and the block housing of the surgical staple device according to an embodiment of the present invention.
  • 15 is an exemplary view for explaining the operation of the clasp in a state in which the locking unit is lowered in the surgical staple device according to an embodiment of the present invention.
  • 16 is an exemplary view for explaining the operation of the clasp in a state in which the locking unit is raised in the surgical staple device according to an embodiment of the present invention.
  • FIG. 17 is a perspective view showing the loading unit of the surgical staple device according to an embodiment of the present invention.
  • FIG. 18 is a plan view showing the insertion protrusion of the loading unit of the surgical staple device according to an embodiment of the present invention.
  • 19 is a perspective view showing the adapter of the connection unit of the surgical staple device according to an embodiment of the present invention.
  • handle unit 220 drive shaft unit
  • extension projection 258 stop projection
  • stopper portion 271 stopper
  • auxiliary locking unit 310 block housing unit
  • first ring-shaped protrusion 314 second ring-shaped protrusion
  • FIG. 1 is a perspective view showing a surgical staple device according to an embodiment of the present invention.
  • the surgical staple device includes a loading unit 100 having a cutter (not shown) for excising body tissue and a staple (not shown) for sealing the excision site, and the loading unit 100.
  • Connection unit 500 having a handle unit 200 for controlling the operation of the detachable loading unit 100, and an adapter 520 coupled to the front end of the handle unit 200 and detachable from the loading unit 100.
  • the loading unit 100 is not particularly limited as long as it has a cutter and a staple that implements the functions as described above.
  • the handle unit 200 and the connection unit 500 will be described in detail.
  • FIG. 2 is a perspective view showing the inside of the handle unit in the surgical staple device according to an embodiment of the present invention
  • FIG. 3 is a perspective view showing the handle case part removed in FIG. 2
  • FIGS. 4 and 5 are the present invention It is a perspective view showing the drive shaft portion of the surgical staple device according to an embodiment.
  • the handle unit 200 includes a handle case part 210 , a drive shaft part 220 , an operation handle part 230 , a clasp part 240 , and a locking part 250 . can do.
  • the handle case part 210 may form an outer case of the handle unit 200 .
  • the handle case part 210 may have a first case part 211a and a second case part 211b, and the first case part 211a and the second case part 211b are the whole except for a part. They may be formed symmetrically with each other.
  • the direction from the handle unit 200 to the loading unit 100 is the forward direction (FW), and the direction from the loading unit 100 to the handle unit 200 is the rear direction (BW). And, based on this, it will be described as front/front/front/front/front, and rear/rear/rear/rear.
  • the drive shaft 220 may be provided inside the handle case 210 to reciprocate in the front-rear direction.
  • the drive shaft unit 220 may have a shaft body 221 , a first ratchet 223 , and a second ratchet 224 .
  • the shaft body 221 may form the body of the drive shaft unit 220 and may be formed to extend in the front-rear direction.
  • the first ratchet 223 may be formed on the lower surface 222 of the shaft body 221 , and a plurality of first ratchets 223 may be formed along the longitudinal direction of the shaft body 221 .
  • the first ratchet 223 may be formed so that only a force applied forward is input. That is, when a forward force is applied to the first ratchet 223 , the shaft body 221 may move forward. On the other hand, the force applied to the rear may not be input to the first ratchet 223 , and the shaft body 221 may not move backward.
  • the second ratchet 224 may be formed on a side surface of the shaft body 221 , and may be formed in a direction opposite to that of the first ratchet 223 .
  • the shaft body 221 may be constrained and not move forward.
  • a connection rod 510 connected to the cutter of the loading unit 100 may be coupled to the front end of the drive shaft 220 .
  • the connecting rod 510 When the drive shaft unit 220 moves forward, the connecting rod 510 also moves forward, and accordingly, the cutter may be pushed forward. A cutter pushed forward can ablate tissue in the body, and staples can be fired to suture the tissue.
  • the drive shaft 220 may have a second inclined surface 225 , an inclined groove 226 , and a locking protrusion 227 .
  • the second inclined surface 225 may be formed on the lower surface 222 of the front end of the shaft body 221 .
  • the inclined groove 226 may be formed in the rear of the second inclined surface 225 in the lower surface 222 of the front end of the shaft body 221 .
  • the locking protrusion 227 may be formed in the rear of the inclined groove 226 in the lower surface 222 of the front end of the shaft body 221 .
  • the drive shaft 220 may have a first fixing groove 228 , a second fixing groove 229 , and a third fixing groove 229a.
  • the first fixing groove 228 may be formed at the front end of the upper surface of the drive shaft 220 .
  • the second fixing groove 229 may be formed in the rear of the first fixing groove 228 in the upper portion of the drive shaft 220 .
  • the second fixing groove 229 may be recessed over the upper surface and the side surface of the drive shaft 220 .
  • the third fixing groove 229a may be formed in the rear of the second fixing groove 229 on the upper surface of the drive shaft part 220 .
  • the upper portion of the operation handle unit 230 may be provided inside the handle case unit 210 , and the remaining portion may extend outside the handle case unit 210 .
  • a first hinge hole 231 may be formed through the upper portion of the operation handle unit 230 .
  • the handle case part 210 may have a first hinge shaft 212 (refer to FIG. 8 ), and the first hinge shaft 212 may be coupled to the first hinge hole 231 . Through this, the operation handle unit 230 may be hingedly rotated about the first hinge shaft 212 .
  • a handle spring 233 may be provided inside the handle case part 210 .
  • the rear end of the handle spring 233 may be fixed to the handle case unit 210 , and the front end of the handle spring 233 may be connected to the upper end of the operation handle unit 230 .
  • the handle spring 233 may generate a contractile restoring force. Accordingly, the handle spring 233 may pull the upper end of the actuating handle portion 230 rearward.
  • the latch unit 240 may be coupled to the upper end of the operation handle unit 230 by a second hinge shaft 241 , and may be hingedly rotated around the second hinge shaft 241 .
  • a torsion spring (not shown) may be provided on the second hinge shaft 241 to provide an elastic force to rotate the front end of the clasp 240 upward.
  • the locking part 250 may be disposed adjacent to the front end of the drive shaft part 220 , and may be provided in the handle case part 210 to be able to move up and down.
  • FIG. 6 and 7 are perspective views showing the locking part of the surgical staple device according to an embodiment of the present invention
  • Figure 8 is a perspective view showing a part of the handle case part of the surgical staple device according to an embodiment of the present invention
  • 9 is a perspective view illustrating a portion “A” of FIG. 8 .
  • the locking part 250 includes the elevating body 251, the extension protrusion 254, the guide protrusion 252, the elevating body elastic member 253 and the first inclined protrusion ( 256) can have.
  • the elevating body 251 may be provided above the front end of the drive shaft 220 .
  • the elevating body 251 may extend to cross the drive shaft 220 .
  • the extension protrusion 254 may be formed to extend vertically at both ends of the elevating body 251 .
  • the handle case part 210 may have extended protrusion guide ribs 213a and 213b.
  • the extension protrusion guide ribs 213a and 213b may be formed as a pair so that the extension protrusion 254 is inserted, and may be formed to extend in the vertical direction.
  • extension protrusion guide rib ( 213a and 213b may guide the lifting movement of the extension protrusion 254 .
  • the guide protrusion 252 may be formed to extend downwardly at one end of the elevating body 251 .
  • the lower end of the guide protrusion 252 may be located lower than the lower surface 222 of the drive shaft 220 .
  • the lower end of the guide protrusion 252 may be located above the lower surface 222 of the drive shaft 220 .
  • the lifting body elastic member 253 may be provided between the lifting body 251 and the handle case part 210 .
  • the upper end of the elevating body elastic member 253 is in close contact with the handle case unit 210 , and the lower end may be in close contact with the upper portion of the elevating body 251 , and the elevating body elastic member 253 is the elevating body 251 on the lower side. can be elastically supported.
  • a recess 255 into which the lower end of the elevating body elastic member 253 is inserted may be formed in the upper portion of the elevating body 251 .
  • the first inclined protrusion 256 may be formed to protrude from one end of the elevating body 251 .
  • a first inclined surface 257 may be formed at the lower end of the first inclined protrusion 256 , and the first inclined surface 257 may be positioned above the lower end of the guide protrusion 252 .
  • the locking part 250 may have a stop protrusion 258 .
  • the stop protrusion 258 may be formed to extend rearwardly from the lower portion of the elevating body 251 .
  • the stop protrusion 258 may be inserted into the first fixing groove 228 of the drive shaft 220 .
  • the drive shaft 220 may be constrained not to move forward.
  • the surgical staple device may include a stopper unit 270 .
  • the stopper part 270 may be provided below the drive shaft part 220 at the rear of the upper end of the operation handle part 230 .
  • the stopper part 270 may be elastically supported so as to be lowered by the actuating spring 273 .
  • the handle case part 210 may have stopper part guide ribs 214a and 214b formed as a pair, and the stopper part 270 may be provided in a space between the stopper part guide ribs 214a and 214b.
  • the stopper guide ribs 214a and 214b may extend vertically, and the stopper 270 may move up and down in a space between the stopper guide ribs 214a and 214b.
  • the front side of the stopper part 270 may be in close contact with the front stopper part guide rib 214a, and the rear surface of the stopper part 270 is a rear stopper part guide. It may be in close contact with the rib 214b. Therefore, when the stopper part 270 moves up and down, the stopper guide ribs 214a and 214b may guide the stopper part 270 to move up and down stably.
  • the handle case part 210 may have a first fixing protrusion 214c.
  • the first fixing protrusion 214c may be formed to protrude above the space between the stopper guide ribs 214a and 214b.
  • the first fixing protrusion 214c is formed in the stopper portion 270 in the vertical direction and can be inserted into the first long hole 275 having an actuating spring 273 therein, and the upper end of the actuating spring 273 is the first It may be in close contact with the lower surface of the fixing protrusion 214c. Since the first fixing protrusion 214c maintains a fixed state even when the stopper portion 270 is raised and lowered, the actuating spring 273 may stably and elastically support the stopper portion 270 downward.
  • the stopper 271 of the stopper part 270 is the drive shaft part 220 . It may be provided vertically below the second ratchet 224 .
  • the upper end of the rotating actuating handle unit 230 When the upper end of the actuating handle unit 230 is pulled rearward by the handle spring 233 , the upper end of the rotating actuating handle unit 230 may be in close contact with the stopper unit 270 to stop rotation.
  • a pressing protrusion 232 may be formed on the upper end of the operation handle unit 230 , and when the pressing projection 232 presses the second inclined projection 272 of the stopper unit 270 , the operation handle unit 230 . is stopped, and at the same time, the stopper part 270 moves upward, so that the stopper 271 can be coupled to the second ratchet 224 . Then, the drive shaft 220 may be constrained not to move forward.
  • a state in which the pressing protrusion 232 of the actuating handle part 230 is in close contact with the second inclined protrusion 272 and the rotation of the actuating handle part 230 is stopped is referred to as an “initial state”.
  • FIG 10 is an exemplary view for explaining the operation of the stopper portion and the clasp in the surgical staple device according to an embodiment of the present invention.
  • the restraint by the stopper part guide rib 214a may be released.
  • the front end of the clasp 240 may be rotated upward by the elastic restoring force of the torsion spring, and the pusher 242 may be in close contact with the lower surface 222 of the drive shaft 220 .
  • the pusher 242 is caught by the locking jaws 227 of the drive shaft part 220 while moving forward, and the drive shaft part 220 moves forward. can be pushed to
  • the operation handle part 230 may be rotated back to its initial state by the elastic restoring force of the handle spring 233 (refer to FIG. 3 ).
  • the drive shaft 220 has already moved forward by a predetermined distance, even if the stopper 270 is raised, the stopper 271 cannot be coupled to the second ratchet 224 .
  • the pusher 242 may be coupled to the first ratchet 223 , and the pusher 242 pushes the first ratchet 223 forward. Accordingly, the drive shaft 220 may be moved forward.
  • FIG. 11 is a perspective view showing the auxiliary locking unit of the surgical staple device according to an embodiment of the present invention.
  • the surgical staple device may include an auxiliary locking unit 290 .
  • the auxiliary locking part 290 may have a rotating bar 291 , a protrusion 293 , and a rotating bar elastic member 294 .
  • the rotary bar 291 may be provided to cross the drive shaft 220 at the upper side of the second fixing groove 229 of the drive shaft 220 . Both ends of the rotating bar 291 may be coupled to the third hinge shaft 218 of the handle case unit 210 to be rotatable, respectively.
  • the protrusion 293 may be formed to protrude from the outer circumferential surface of the rotating bar 291 , and may be inserted into the second fixing groove 229 .
  • the rotating bar elastic member 294 may be provided to surround the rotating bar 291 .
  • the rotating bar elastic member 294 may have one end coupled to the cutout groove 292 formed in the rotating bar 291 , and the other end coupled to the third fixing groove 229a.
  • the rotating bar elastic member 294 may provide an elastic restoring force such that the protrusion 293 coupled to the second fixing groove 229 presses the second fixing groove 229 backward. Through this, the forward movement of the drive shaft unit 220 may be limited.
  • a force greater than the elastic restoring force of the rotating bar elastic member 294 is applied to the driving shaft unit 220 forward, the driving shaft unit 220 can be moved forward, and the rotating bar 291 can be rotated. have.
  • the surgical staple device may include a unlocking unit 260 .
  • FIGS. 13 and 14 are the unlocking part and the block housing of the surgical staple device according to an embodiment of the present invention. is a perspective view showing
  • the unlocking unit 260 may include a body bar 261 and a body bar elastic member 263 .
  • the body bar 261 may be provided inside the handle case part 210 to reciprocate in the front-rear direction.
  • the handle case part 210 may have a pair of body bar guide ribs 216a and 216b.
  • the body bar guide ribs 216a and 216b may be formed to extend in the front and rear directions from the upper and lower sides of the body bar 261 so that the body bar 261 is inserted, and installed between the body bar guide ribs 216a and 216b.
  • a space 216c may be formed.
  • the body bar 261 may be moved in the front-rear direction in the installation space 216c, and in the installation space 216c, the upper surface of the body bar 261 is in close contact with the upper body bar guide rib 216a, and the lower surface is the lower side. It may be in close contact with the body bar guide rib (216b) of the.
  • the handle case part 210 may have a pair of separation prevention protrusions 217a and 217b, and the separation prevention projections 217a and 217b are formed to protrude to face each other on the body bar guide ribs 216a and 216b, and the body bar (261) can be prevented.
  • the body bar 261 may have a second long hole 262 extending in the longitudinal direction of the body bar 261 .
  • the handle case part 210 may have a second fixing protrusion 215 .
  • the second fixing protrusion 215 may be formed to protrude from the installation space 216c. When the body bar 261 is positioned in the installation space 216c, the second fixing protrusion 215 may be inserted into the second long hole 262.
  • the second fixing protrusion 215 may be located at the rear inside the second long hole 262 .
  • the body bar elastic member 263 may be inserted into the second long hole 262 , and the rear end of the body bar elastic member 263 inside the second long hole 262 is the front end of the second fixing protrusion 215 . It is in close contact with the part, and the front end is in close contact with the front end of the second long hole 262 to elastically support the body bar 261 in the front. Even if the body bar 261 is moved rearward, since the second fixing protrusion 215 is in a fixed state, the elastic restoring force of the body bar 261 is stably generated while being compressed while the body bar elastic member 263 is compressed. can
  • the unlocking unit 260 may have a first flange 264 and a locking protrusion 265 .
  • the first flange 264 may be formed on the front end of the body bar 261 , and the locking protrusion 265 may be formed on the front surface of the first flange 264 .
  • the surgical staple device may include a block housing 310 .
  • the block housing unit 310 may be provided to reciprocate in the front and rear directions in front of the unlocking unit 260 .
  • the block housing unit 310 is pressed by the loading unit 100 and can be moved rearward, and the block housing unit 310 moving rearwardly moves the body bar 261 rearward. It can be moved by pressing.
  • the block housing part 310 may have a second flange 311 and an insertion part 312 .
  • the second flange 311 may be formed at the rear end of the block housing 310 and may face the first flange 264 .
  • the insertion part 312 may be formed on the rear surface of the second flange 311 .
  • the insertion part 312 may have a first ring-shaped protrusion 313 and a second ring-shaped protrusion 314 .
  • the first ring-shaped protrusion 313 may be formed to protrude from the second flange 311 in the circumferential direction.
  • the second ring-shaped protrusion 314 is formed to protrude along the circumferential direction on the second flange 311, is formed to have a larger diameter than the first ring-shaped protrusion 313 to be formed to be spaced apart from the first ring-shaped protrusion 313.
  • an insertion groove 315 may be formed between the first ring-shaped protrusion 313 and the second ring-shaped protrusion 314 , and the engaging projection 265 of the body bar 261 is provided in the insertion groove 315 . can be inserted.
  • the locking projection 265 When the locking projection 265 is inserted into the insertion groove 315, the locking projection 265 may be constrained not to move in the radial direction. Through this, the block housing unit 310 and the body bar 261 may be firmly fixed, and the block housing unit 310 may stably press the body bar 261 .
  • Figure 15 is an exemplary view for explaining the operation of the latch unit in a state in which the locking unit is lowered in the surgical staple device according to an embodiment of the present invention
  • Figure 16 is a surgical staple device according to an embodiment of the present invention locking It is an exemplary view for explaining the operation of the clasp in the state in which the part is raised.
  • the unlocking unit 260 is the block housing unit 310.
  • the rear end of the unlocking part 260 does not contact the first inclined surface 257 of the locking part 250 or even in contact with the first inclined surface 257. It may be in a state in which the first inclined surface 257 is not pressed.
  • the lower end of the guide protrusion 252 may be positioned lower than the lower surface of the drive shaft 220 by the elastic restoring force of the elevating body elastic member 253 , and may cover the engaging protrusion 227 . Accordingly, as shown in (b) of FIG.
  • the guide protrusion 252 is the pusher 242 from the lower surface 222 of the drive shaft 220 . may be guided to fall off, and the clasp 240 may not be able to push the drive shaft 220 forward.
  • the lifting body elastic member 253 may have a greater elastic restoring force than the torsion spring for rotating the clasp 240 .
  • the unlocking unit 260 is pressed and moved to the rear, the unlocking unit 260 is the first inclined surface 257 . ) can be pushed up by pressing. Then, the locking part 250 may be moved upward, and the lower end of the guide protrusion 252 may be located above the lower surface 222 of the drive shaft part 220 . Accordingly, the locking jaw 227 of the drive shaft 220 may be exposed, and the pusher 242 of the locking part 240 pushes the locking jaw 227 so that the drive shaft 220 moves forward. can make it happen
  • the pusher 242 cannot push the drive shaft 220 forward, so that in a state in which the loading unit 100 is not coupled Even if the user unintentionally pulls the operation handle part 230, the cutter and stapler of the loading unit 100 may not work.
  • FIG. 17 is a perspective view showing the loading unit of the surgical staple device according to an embodiment of the present invention
  • Figure 18 is a plan view showing the insertion protrusion of the loading unit of the surgical staple device according to an embodiment of the present invention
  • FIG. 19 is a perspective view showing the adapter of the connection unit of the surgical staple device according to an embodiment of the present invention.
  • the loading unit 100 may have an insertion protrusion 110 protruding from the outer peripheral surface of the rear end.
  • a pair of insertion protrusions 110 may be provided.
  • the insertion protrusion 110 may have a tapered rear end 111 formed therein.
  • connection unit 500 may have an adapter 520 to which the loading unit 100 is detachably attached to the front end.
  • a receiving protrusion 521 may be formed to protrude from the inner circumferential surface of the adapter 520 .
  • the receiving protrusions 521 may be spaced apart along the circumferential direction, and an insertion space 523 may be formed between the receiving protrusions 521 .
  • the insertion protrusion 110 may be inserted into the insertion space 523 between the receiving protrusions 521 .
  • the receiving protrusion 521 may have a tapered front end 522 formed therein. Since both the rear end of the insertion protrusion 110 and the front end of the receiving protrusion 521 are tapered, the insertion protrusion 110 can be easily inserted into the insertion space 523 .

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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)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Surgical Instruments (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un dispositif d'agrafage chirurgical dont la configuration est simple et dont la maniabilité et la stabilité ont été améliorées. Le dispositif d'agrafage chirurgical selon l'invention comprend : une unité de chargement comportant un dispositif de coupe servant à couper un tissu d'un corps humain, et une agrafeuse servant à suturer une partie coupée ; et une unité poignée détachée de l'unité de chargement et servant à commander une opération de l'unité de chargement, l'unité poignée comprenant une partie boîtier de poignée, une partie arbre d'entraînement et une partie de verrouillage. La partie arbre d'entraînement est destinée à effectuer un mouvement de va-et-vient vers l'avant et vers l'arrière à l'intérieur de la partie boîtier de poignée, et pousse le dispositif de coupe vers l'avant tout en se déplaçant vers l'avant. La partie de verrouillage est disposée adjacente à l'extrémité avant de la partie arbre d'entraînement, et est destinée à être mobile vers le haut ou vers le bas au niveau de la partie boîtier de poignée pour empêcher la partie arbre d'entraînement de se déplacer vers l'avant. La partie verrouillage comprend un corps d'élévation disposé pour être déplacé vers le haut ou vers le bas par une force externe s'exerçant sur le côté supérieur de l'extrémité avant de la partie arbre d'entraînement, et un mouvement vertical du corps d'élévation est guidé par la partie boîtier de poignée
PCT/KR2020/017985 2020-12-07 2020-12-09 Dispositif d'agrafage chirurgical WO2022124444A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020200169910A KR102610685B1 (ko) 2020-12-07 2020-12-07 외과용 스테이플 장치
KR1020200169911A KR102554909B1 (ko) 2020-12-07 2020-12-07 외과용 스테이플 장치
KR10-2020-0169911 2020-12-07
KR10-2020-0169910 2020-12-07

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WO2022124444A1 true WO2022124444A1 (fr) 2022-06-16

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WO (1) WO2022124444A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005505335A (ja) * 2001-10-05 2005-02-24 タイコ ヘルスケア グループ エルピー 外科的ステープリングデバイス
US20160038144A1 (en) * 2011-10-17 2016-02-11 Covidien Lp Surgical Stapling Apparatus
CN108403176A (zh) * 2018-03-29 2018-08-17 盈甲医疗器械制造（上海）有限公司 一种具有保险装置的吻合器
JP2019513049A (ja) * 2016-04-01 2019-05-23 エシコン エルエルシーＥｔｈｉｃｏｎ ＬＬＣ ジョー閉鎖ロックアウトを備える外科用ステープル留めシステム
US10524795B2 (en) * 2015-07-30 2020-01-07 Ethicon Llc Surgical instrument comprising systems for permitting the optional transection of tissue

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005505335A (ja) * 2001-10-05 2005-02-24 タイコ ヘルスケア グループ エルピー 外科的ステープリングデバイス
US20160038144A1 (en) * 2011-10-17 2016-02-11 Covidien Lp Surgical Stapling Apparatus
US10524795B2 (en) * 2015-07-30 2020-01-07 Ethicon Llc Surgical instrument comprising systems for permitting the optional transection of tissue
JP2019513049A (ja) * 2016-04-01 2019-05-23 エシコン エルエルシーＥｔｈｉｃｏｎ ＬＬＣ ジョー閉鎖ロックアウトを備える外科用ステープル留めシステム
CN108403176A (zh) * 2018-03-29 2018-08-17 盈甲医疗器械制造（上海）有限公司 一种具有保险装置的吻合器

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