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WO2021027667A1 - Applicateur d'agrafes multi-déclenchement et appareil empêchant l'applicateur d'agrafes multi-déclenchement de se rétracter automatiquement - Google Patents

Applicateur d'agrafes multi-déclenchement et appareil empêchant l'applicateur d'agrafes multi-déclenchement de se rétracter automatiquement Download PDF

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Publication number
WO2021027667A1
WO2021027667A1 PCT/CN2020/107299 CN2020107299W WO2021027667A1 WO 2021027667 A1 WO2021027667 A1 WO 2021027667A1 CN 2020107299 W CN2020107299 W CN 2020107299W WO 2021027667 A1 WO2021027667 A1 WO 2021027667A1
Authority
WO
WIPO (PCT)
Prior art keywords
hole
groove
shaft
rod
clip applier
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2020/107299
Other languages
English (en)
Chinese (zh)
Inventor
黄皆澔
詹菲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 CN201910732770.8A external-priority patent/CN110432946B/zh
Priority claimed from CN201910733751.7A external-priority patent/CN110432947B/zh
Application filed by Individual filed Critical Individual
Publication of WO2021027667A1 publication Critical patent/WO2021027667A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
    • A61B17/128—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for applying or removing clamps or clips

Definitions

  • the invention relates to the technical field of medical equipment and equipment, in particular to a continuous hair clip applier and a device for preventing the continuous hair clip applier from automatically retreating.
  • the clip applier is a commonly used medical device, usually used in surgical operations, used to clamp blood vessels, play a hemostatic effect, also called hemostatic forceps.
  • the pliers heads of the existing continuous hair clip applier cannot hold the closing clip stably, which easily causes the closing clip to fall off, and the conveyor that pushes the closing clip is prone to retreat, causing the closing clip placed in the storage bin to become loose and The retreat affects the continuous use of the continuous hair clip applier.
  • a continuous hair clip applier and a device for preventing automatic relocation of the continuous hair clip applier includes a push handle, a pipe rod and a clamp head installed at the front end of the pipe rod, and also includes a feeding device, a push-pull rod, and a feeding device arranged in the pipe rod.
  • the feeding device includes a conveying member and a driving member that pushes the conveying member to move; a shaft is provided at the proximal end of the pipe rod, and the shaft is used to fix the clamp head, and the conveying member It is provided with a strip-shaped through groove, the groove walls on both sides of the strip-shaped through groove are provided with at least a pair of protruding anti-return clip buckles, and both ends of the shaft are fixed to the pipe rod after passing through the strip-shaped through groove ,
  • the end diameter of the anti-return clip is smaller than the diameter of the shaft, and the shaft is elastically clamped between the two anti-return clips after the transmission member pushes the closing clip to prevent The transfer is returned.
  • the storage bin includes a front bin and a rear bin
  • the front bin extends to the opening of the pliers head
  • the connection between the front bin and the rear bin is provided with an upper lip and a lower lip
  • the upper lip and the lower lip are respectively arranged on the upper part and the lower part of the front cabin, and are spaced from the top and bottom of the front cabin, and the left and right sides of the rear cabin have strip-shaped sides
  • the front bin and the rear bin are integrally formed, and the rear end of the rear bin is threadedly connected to the front end of the push-pull rod.
  • the pliers head includes a pair of opposing pliers arms, the inner side of the pliers arms is provided with a guide groove, the guide groove is configured as an extension of the front compartment, and the anti-drop hole is provided in the guide groove Near the top end of the bottom, the outer side of the closing clip is provided with a protruding column.
  • the transmission member pushes the closing clip to slide into the guide groove from the opening of the front compartment, and the closing clip opens under its own tension to make the outer side of the closing clip The protruding post of the wall is clamped in the anti-drop hole.
  • the conveying member includes a top rod and a hollow cavity, the hollow cavity contains the push-pull rod, and both sides of the front end of the hollow cavity have side strips extending along the axial direction of the hollow cavity.
  • the side strips pass through the side grooves;
  • the top rod is connected to the top end of the side strips, the strip-shaped through groove extends along the length direction of the top rod, the anti-return clip Are arranged in pairs, and the anti-return clip buckles extend from the inner side wall of the bar-shaped through groove and extend along the conveying direction of the closing clip;
  • the top end of the anti-return clip buckle is provided with a protrusion, the The protrusion points to the inside of the bar-shaped through groove, and the distance between the two opposite protrusions is smaller than the diameter of the shaft.
  • the pliers arm includes a flat mounting portion, and the two mounting portions are respectively provided in the interval between the upper lip and the lower lip and the front compartment, and the pliers tail has a shaft hole And an oblique hole, the shaft hole is pierced with the shaft, a pair of the oblique holes are respectively provided at the rear ends of the two mounting parts, and intersect from the outside to the inside, the oblique holes pass through With rotating shaft.
  • the front bin has a long through hole and a round hole, the long through hole extends along the length of the front bin, and the shaft is penetrated through the strip through slot of the conveying member, the front bin
  • the long through hole of the shaft and the shaft hole of the mounting part, the two ends of the shaft rod are respectively fixedly connected to the upper and lower side walls of the pipe rod; the rotation shaft penetrates the strip of the transmission member The two ends of the rotating shaft are respectively fixedly connected to the upper lip and the lower lip.
  • the driving member includes a gear assembly
  • the gear assembly includes a gear and a wheel handle far away from the gear
  • the rear end of the transmission member has a tooth stripe
  • the push handle is connected to a mounting tube
  • the mounting tube A rack groove is opened corresponding to the position of the tooth stripe, and the gear extends into the gear groove and meshes with the tooth stripe
  • the gear assembly is mounted on the mounting pipe through a fixed shaft and a safety shaft The gear assembly rotates around the fixed shaft, and the safety shaft is used to lock or open the gear assembly.
  • the gear assembly has a first fixing hole and an arc-shaped through hole, and the arc-shaped through hole is in the same direction as the gear and is arranged between the gear and the first fixing hole;
  • the two sides of the gear groove respectively extend outwardly with fixing pieces, the gear assembly is arranged between the two fixing pieces, the fixing piece has a second fixing hole and a safety hole, and the position of the second fixing hole corresponds to The position of the first fixing hole and the position of the safety hole correspond to the position of the arc-shaped through hole;
  • a fixing shaft is penetrated in the first fixing hole and the second fixing hole, and the gear assembly
  • the fixed shaft is used as a shaft to rotate;
  • the safety hole and the arc-shaped through hole are provided with a safety shaft, and when the gear assembly rotates, the arc-shaped through hole passes through the safety hole when rotating.
  • the safety shaft includes an elastic member, a base and a shaft pin disposed oppositely, the shaft pin is threadedly fixed in the base, and both the shaft pin and the outer top end of the base have protruding edges,
  • the elastic member is arranged between the base and the fixing member.
  • a plurality of closing clips are placed in the front compartment, the rear end of the push-pull rod is connected to the push handle and moves under the push of the push handle, and the front end of the push-pull rod is movably connected to the push handle.
  • the rear end of the rear compartment, the front end of the front compartment is connected to the clamp head, and the clamp head is opened or closed; the transmission member extends into the front compartment, and the top end of the transmission member has A groove, the groove is clamped on the protrusion at the rear end of the closing clamp, and the closing clamp is sequentially pushed to the pliers head.
  • a device for preventing automatic relocation of a continuous hair clip applier includes a pipe rod and a clamp head mounted on the front end of the pipe rod, a push-pull rod, a feeding device, and a storage device.
  • a material compartment is equipped with a plurality of closure clamps for clamping blood vessels
  • the automatic repositioning device includes a top rod, a first plug and a second plug, and the top rod is connected to the front end of the feeding device
  • the ejector rod is provided with a through groove, and the two plugs respectively pass through the clamp head and the storage compartment and then penetrate into the through groove, and the two plugs serve as pivots for the clamp head to open or clamp.
  • the groove walls on both sides of the through groove are respectively provided with at least a pair of cavities, the cavity walls of the cavities are convexly provided with anti-return clips extending along the feeding direction, and each pair of the cavities is
  • the center lines of the through grooves are symmetrically arranged, the diameter of the two plugs is smaller than the width of the through groove and greater than the width between the free front ends of the two anti-return clips, and the ejector rod extends into the storage compartment
  • the closing clip is pushed into the clamp head, and the plug is elastically clamped between the two anti-return clamps after the ejector pin pushes the closing clip to prevent the ejector pin from retreating.
  • the cavity is a groove parallel to the through groove and penetrated inwardly opened on the two groove walls of the through groove, and the anti-return clip has the free front end near the pliers head and away from the pliers. At the rear end in the head direction, the front end protrudes outward from the through groove, and the rear end is used to provide elasticity while avoiding the plug.
  • the cavity has two pairs, and the distance between the two pairs of cavity is close to the length of the closing clip.
  • the front end of the pipe rod is provided with a pipe rod mounting part
  • the pipe rod mounting part is provided with a through hole
  • the storage compartment is provided with a long narrow hole and a round hole
  • the clamp head includes a pair of pliers Arm
  • a pair of opposite inner sides of the clamp arms are respectively provided with an axially extending oblique groove
  • the oblique groove communicates with the storage compartment, so that the closing clip enters the oblique groove under the pushing of the feeding device
  • the rear end of the arm is respectively provided with a shaft hole and an oblique hole
  • the first plug is inserted into the through hole, round hole and the oblique hole
  • the second plug is inserted into the elongated hole and the shaft hole to
  • the front end of the pipe rod is connected with the pliers arm, and the pliers head is moved around the first plug to produce a shearing action or a clamping and unclamping action.
  • the storage compartment has a front compartment and a rear compartment, and the front end of the rear compartment extends forwardly with an upper lip and a lower lip that are parallel to each other and spaced up and down, and the upper lip and the lower lip are provided with the A round hole, the length of the first plug is the same as the distance between the upper lip and the lower lip, and the end of the clamp head is clamped between the outer wall of the front cabin, the upper lip and the lower lip, and passes through the first plug It moves in the circular hole to drive the clamp head to open or clamp.
  • the anti-return fastener is an elastic sheet or elastic strip, and the elastic sheet or elastic strip is parallel to the feeding direction.
  • the depth of the cross-sectional direction of the cavity is the same as the thickness of the elastic sheet or strip.
  • the distance between the first pair of cavities and the second plug is close to the length of the closing clip, and the length of the penetrating groove is close to the length of the storage compartment.
  • the distance between the round hole and the front end of the front compartment is not less than the length of the two closing clips.
  • the elongated hole has an extension of a predetermined length along the feeding direction.
  • the shaft and the rotating shaft pass through the bar-shaped through groove of the conveying member, and the protrusion at the top end of the anti-return clip in the bar-shaped through groove It has a blocking effect on the shaft and the rotating shaft, so that the transmission member cannot easily move in the reverse direction after moving in the direction of the pliers head, and prevents the transmission member from retreating.
  • the safety shaft locks the position
  • the driving member prevents the driving member from pushing the transmission member to move, which can prevent the transmission member from retreating during the normal use of the continuous hair clip applier, and can also prevent misoperation from causing the driving member to push the position.
  • the transmission member advances or retreats; the anti-drop hole is provided in the bottom of the guide groove of the clamp head, and the convex post on the outer side of the closing clamp is penetrated in the anti-drop hole, so that the clamp head can grasp the
  • the closing clip is not easy to fall off, the continuous hair clip applier can more stably grasp and release the hemostatic forceps, and the operation is more smooth.
  • the present invention has simple structure, easy realization, low cost and easy promotion.
  • Fig. 1 is a structural diagram of a continuous hair clip applier according to an embodiment of the present invention.
  • Fig. 2 is an exploded view of the structure of the continuous hair clip applier according to the embodiment of the present invention.
  • Fig. 3 is a cross-sectional view of a continuous hair clip applier according to an embodiment of the present invention.
  • FIG. 4 is a horizontal cross-sectional view of the jaws of the continuous hair clip applier according to the embodiment of the present invention.
  • Fig. 5 is a sectional view of the safety structure of the continuous hair clip applier according to the embodiment of the present invention.
  • Fig. 6 is a vertical sectional view of the jaws of the continuous hair clip applier according to the embodiment of the present invention.
  • FIG. 7 is a three-dimensional structural diagram of the continuous hair clip applier preventing automatic relocation of the continuous hair clip applier according to the embodiment of the present invention.
  • Fig. 8 is an exploded view of the three-dimensional structure of the device for preventing automatic reposition of the continuous hair clip applier according to the embodiment of the present invention.
  • Fig. 9 is a schematic cross-sectional view of a top view of the hemostatic closing clip installed in the automatic repositioning device for preventing continuous hair clip applier according to the embodiment of the present invention.
  • Fig. 10 is a schematic cross-sectional view of the structure in the front view direction of the hemostatic closing clip installed in the automatic repositioning device for preventing continuous hair clip applier according to the embodiment of the present invention.
  • Fig. 11 is a partial enlarged schematic view of the three-dimensional structure of the ejector rod of the automatic repositioning device for preventing continuous hair clip applier according to the embodiment of the present invention.
  • the continuous hair clip applier is taken as an example, and the present invention will be described in detail below with reference to specific embodiments and drawings.
  • FIG. 1 Please refer to Figure 1, Figure 2, Figure 3, Figure 4, Figure 5 and Figure 6, showing a continuous hair clip applier 100 provided by an embodiment of the present invention, including a push handle 10, a pipe rod 20 and installed on the pipe rod
  • the clamp head 30 at the front end of the 20 also includes a feeding device, a push-pull rod 60 and a storage bin 50 arranged in the pipe rod 20.
  • the feeding device includes a conveying member 41 and a driving member 42 that pushes the conveying member 41 to move.
  • the proximal end of the tube rod 20 is provided with a shaft 31, the shaft 31 is used to fix the pliers 30, the transmission member 41 has a bar-shaped through groove 411, two of the bar-shaped through groove 411
  • the side groove wall is provided with at least a pair of protruding anti-return clips 412, the shaft 31 passes through the bar-shaped through groove 411, and the two ends are fixed to the pipe rod 20.
  • the ends of the anti-return clip 412 The diameter is smaller than the diameter of the shaft 31, and the end diameter of the anti-return clip 412 is the radial or longitudinal distance between the ends of a pair of anti-return clip 412.
  • the shaft 31 is elastically clamped between the two anti-return clamps 412 after the transfer member 41 pushes the closing clamp, that is, between the elastic clamp and a pair of the anti-return clamps 412 In order to prevent the transfer member 41 from returning.
  • the side of the continuous hair clip applier close to the pliers head 30 is the front end, and the side opposite to the front end is the back end.
  • a plurality of closing clips are placed in the storage bin 50, the storage bin 50 is movably connected with the clamp head 30, and the front end of the push-pull rod 60 is connected to the rear end of the storage bin 50 , The rear end of the push-pull rod 60 is connected to the push handle 10, and the push handle 10 moves the storage bin 50 back and forth through the push-pull rod 60, thereby controlling the opening or closing of the clamp head 30;
  • the front end of the transmission member 41 extends into the storage bin 50, the rear end of the transmission member 41 and the driving member 42 are meshed with gears, and the driving member 42 pushes the transmission member 41 toward the The front end of the storage bin 50 moves, and the transfer member 41 pushes the closing clip in the storage bin 50 to the clamp head 30.
  • the storage bin 50 includes a front bin and a rear bin, the front bin extends to the opening of the clamp head 30, and the connection between the front bin and the rear bin is provided with an upper lip 52 and a lower
  • the lip 53, the upper lip 52 and the lower lip 53 are respectively arranged at the upper and lower parts of the front compartment, and are spaced apart from the top and bottom of the front compartment.
  • the side has a strip-shaped side groove, the front bin and the rear bin are integrally formed, and the rear end of the rear bin is screwed to the front end of the push-pull rod 60.
  • the pliers head 30 includes a pair of opposing pliers arms, the inner side of the pliers arms is provided with a guide groove, the guide groove is configured as an extension of the front compartment, and the anti-drop hole 33 is provided in the guide groove Near the top end of the bottom, the outer side of the closing clip is provided with a convex post.
  • the transmission member 41 pushes the closing clip to slide into the guide groove from the opening of the front compartment, and the closing clip is opened under its own tension to make the closing clip The convex post on the outer side wall is clamped in the anti-drop hole 33.
  • the closing clip is placed in the front compartment, and the transfer member 41 pushes the closing clip out from the opening of the front compartment.
  • the closing clip expands in a V shape under the action of its own tension to close the outer wall of the clip.
  • the convex post slides along the bottom of the guide groove toward the front end of the clamp head 30.
  • the convex post reaches the anti-drop hole 33, the convex post is clamped in the anti-drop hole 33 under the action of its own tension.
  • the clamp head 30 firmly grasps the closing clip, so that the closing clip is not easy to fall off.
  • the conveying member includes a top rod and a hollow cavity, and the push-pull rod 60 is placed in the hollow cavity. Both sides of the front end of the hollow cavity have side strips extending along the axial direction of the hollow cavity. The side strips pass through the side grooves; the top rod is connected to the top end of the side strips, the strip-shaped through groove 411 extends along the length of the top rod, and the anti-backlash
  • the clamps 412 are arranged in pairs, and the anti-return clamp 412 protrudes from the inner side wall of the bar-shaped through groove 411 and extends along the conveying direction of the closed clamp; the top end of the anti-back clamp 412 is provided There are protrusions, and the protrusions point to the inside of the bar-shaped through groove 411, and the distance between two opposite protrusions is smaller than the diameter of the shaft 31.
  • the protrusion is a semi-cylindrical body or a vertebral body, and the cylindrical or conical surface of the protrusion is
  • the pliers arm includes a flat mounting portion 34, and the two mounting portions 34 are respectively provided in the space between the upper lip 52 and the lower lip 53 and the front compartment, and the pliers
  • the tail has a shaft hole 310 and an oblique hole 311.
  • the shaft rod 31 is penetrated in the shaft hole 310.
  • a pair of the oblique holes 311 are respectively provided at the rear ends of the two mounting parts 34 and are directed from the outside. Inwardly intersecting, a rotating shaft 32 penetrates through the oblique hole 311.
  • the front compartment has a long through hole 51 and a round hole, the long through hole 51 extends along the length of the front compartment, and the shaft 31 passes through the strip through slot 411 of the conveying member 41 ,
  • the long through hole 51 of the front compartment and the shaft hole 310 of the mounting portion 34, the two ends of the shaft 31 are respectively fixedly connected to the upper and lower side walls of the pipe rod 20; the rotation The shaft 32 passes through the strip through slot 411 of the conveying member 41, the round hole of the front compartment, and the oblique hole 311 of the mounting portion 34, and both ends of the rotating shaft 32 are fixedly connected to the The upper lip piece 52 and the lower lip piece 53.
  • the length of the long through hole 51 is the same as the length that the push-pull rod 60 drives the storage bin 50 to move.
  • the rotating rod follows the storage bin 50.
  • the silo 50 moves to the rear end, the shaft rod 31 does not move with the movement of the storage silo 50, so that the rotating rod moves to the rear end of the mounting portion 34 in the oblique hole 311, so that The clamp head 30 is closed.
  • the anti-return clips 412 are arranged in pairs on the inner side wall of the bar-shaped through groove 411, and the number and interval of the anti-return clips 412 are the same as the closing clips provided in the storage bin 50.
  • the ejector rod moves a corresponding distance to the front end, and the shaft 31 passes through one of the protrusions at the top of the opposite pair of the anti-return clip 412 The protrusion hinders the retreat of the ejector rod.
  • the driving member 42 includes a gear assembly 421, the gear assembly 421 includes a gear and a wheel handle far away from the gear; the rear end of the transmission member 41 has a tooth strip 413, and the pushing handle 10 is connected to a mounting
  • the mounting tube 11 is provided with a rack groove corresponding to the position of the tooth stripe 413, and the gear extends into the gear groove and meshes with the tooth stripe 413; the gear assembly 421 passes through a fixed shaft 425 and a safety shaft are mounted on the mounting pipe 11, the gear assembly 421 rotates around the fixed shaft 425, and the safety shaft is used to lock or open the gear assembly 421.
  • the gear assembly 421 has a first fixing hole and an arc-shaped through hole, and the arc-shaped through hole has the same direction as the gear and is arranged between the gear and the first fixing hole;
  • the two sides of the gear groove respectively extend outwardly with fixing parts, the gear assembly 421 is arranged between the two fixing parts, and the fixing part has a second fixing hole and a safety hole.
  • the position of the second fixing hole is Corresponding to the position of the first fixing hole, the position of the safety hole corresponds to the position of the arc-shaped through hole; a fixing shaft 425 is penetrated in the first fixing hole and the second fixing hole, so
  • the gear assembly 421 rotates around the fixed shaft 425; the safety hole and the arc-shaped through hole are provided with a safety shaft.
  • the gear assembly 421 rotates, the arc-shaped through hole passes through the Mentioned insurance hole.
  • the safety shaft includes an elastic member 424, a base 422 and a shaft pin 423 disposed oppositely, the shaft pin 423 is threadedly fixed in the base 422, and the shaft pin 423 and the outer side of the base 422 The top ends have protruding edges, and the elastic member 424 is arranged between the base 422 and the fixing member.
  • the safety shaft is locked so that the driving member 42 cannot move, preventing the operation process Misoperation in.
  • the safety shaft is opened, and the gear assembly 421 is rotated, so that the transmission member 41 pushes the closing clamp to move to the pliers head 30.
  • the gear assembly 421 is marked with the position of the gear rotation. After the gear rotates by a corresponding arc, the transmission member 41 is moved a corresponding distance to the front end to push the closing clip out of the storage bin 50. .
  • a plurality of closing clips are placed in the front compartment, the rear end of the push-pull rod 60 is connected to the push handle 10 and moves under the push of the push handle 10, and the front end of the push-pull rod 60 It is movably connected to the rear end of the rear compartment, and the front end of the front compartment is connected to the pliers head 30 to open or close the pliers head 30; the transmission member 41 extends into the front compartment, The top end of the conveying member 41 has a groove, and the groove is clamped on the protrusion at the rear end of the closing clip, and the closing clip is sequentially pushed to the clamp head 30.
  • the shaft 31 and the rotating shaft 32 pass through the bar-shaped through groove 411 of the transmission member 41, and the anti-return clip in the bar-shaped through groove 411
  • the protrusion at the top of the buckle 412 has a blocking effect on the shaft 31 and the rotating shaft 32, so that the transmission member 41 cannot easily move in the reverse direction after moving in the direction of the pliers 30, and prevents the transmission member 41 from returning.
  • the safety shaft locks the driving member 42 so that the driving member 42 cannot push the transmission member 41 to move, which can prevent the transmission member 41 from being in normal use of the continuous hair clip applier.
  • Treatment can also prevent misoperation from causing the drive member 42 to push the conveying member 41 forward or backward;
  • the anti-drop hole 33 is provided in the bottom of the guide groove of the clamp head 30, and the convex post outside the closing clip Pierced in the anti-dropping hole 33, so that the clamp head 30 can grasp the closing clip, and the closing clip is not easy to fall off, and the continuous hair clip applier can more grasp and release the hemostatic forceps. Stable and smoother operation.
  • the present invention has simple structure, easy realization, low cost and easy promotion.
  • a device for preventing the automatic reposition of the hair clip applier Please refer to Figures 7, 8, 9 and 11, which show the hair clip applier and prevent hair clip applicator.
  • the pliers automatic repositioning device, the continuous hair clip applier includes a pipe rod 20, and a clamp head 30 mounted on the front end of the pipe rod 20, a push-pull rod 60, a feeding device 5, and a storage compartment 50.
  • the storage compartment 50 is built-in A plurality of closure clamps 200 for clamping blood vessels.
  • the device for preventing automatic retraction of the continuous clip applier includes a top rod 511, a first plug 32, and a second plug 31.
  • the first plug 32 is similar to the previous embodiment.
  • the rotating shaft 32 is the same, and the second plug 31 is the same as the shaft 31 in the previous embodiment.
  • the mandrel 511 is connected to the front end of the feeding device 5, and the mandrel 511 is provided with a through groove 512.
  • the through groove 512 is the aforementioned through bar-shaped through groove 411.
  • the two plugs respectively pass through the clamp head 30 and The storage compartment 50 then penetrates into the through groove 512.
  • the two plugs serve as pivots for opening or clamping the pliers head 30.
  • the two sides of the through groove 512 are respectively provided with at least a pair of cavities 513, and the cavity walls of the cavities 513 are protruding
  • Each pair of the cavities 513 are symmetrically arranged with the center line of the through groove 512, and the diameter of the two plugs is smaller than the width of the through groove 512 and larger than the width of the through groove 512.
  • the width between the free front ends of the two anti-return clips 514 is such that the plug can slide in the through slot 512 and the anti-return clip 514 prevents free sliding.
  • the anti-return clip 514 is the anti-return clip 412 in FIGS. 1-6.
  • the mandrel 511 extends into the storage compartment 50 to push the closing clip 200 into the clamp head 30.
  • the plug is elastically clamped between the two anti-return clips 514 To prevent the ejector pin 511 from returning.
  • the two plugs are preferably cylindrical, and the storage compartment 50 is built with a plurality of closure clips 200 for clamping blood vessels.
  • the anti-return clip 514 is an elastic sheet or strip, and the elastic sheet or strip is parallel to the feeding direction.
  • the cavity 513 is a groove that is parallel to and penetrates the through groove 512 and opened inwardly on the two groove walls of the through groove 512, and the anti-return clip 514 has the groove in the direction close to the jaw 30.
  • the rear end is used to provide elasticity while avoiding the plug, which is convenient for the operator to clamp the closing clamp 200. It saves effort and prevents the ejector pin 511 from automatically retreating without applying external force.
  • the front end is preferably a cone end, a spherical end, or a cylindrical end.
  • the cavity 513 has two pairs, and the distance between the two pairs of cavities 513 is close to the length of the closing clip 200 to ensure that the plug is just right after the closing clip 200 is clamped the previous time. It is stuck at the position of the anti-return clip 514 to prevent the ejector rod 511 from automatically returning. Further, the distance between the first pair of cavities and the second plug 31 at 513 is close to the length of the closing clip 200, and the length of the through slot 512 is close to the length of the storage compartment 50.
  • the depth of the cross-sectional direction of the cavity 513 is the same as the thickness of the elastic sheet or strip.
  • the front end of the pipe rod 20 is provided with a pipe rod mounting portion 21, and preferably, the pipe rod mounting portion 21 is preferably a hollow cylinder.
  • the pipe rod mounting portion 21 is provided with a through hole 22, and the storage compartment 50 is provided with a long narrow hole 51 and a round hole 55.
  • the long narrow hole 51 and the round hole 55 are the long through hole 51 and the round hole in FIG.
  • the pliers head 30 includes a pair of pliers arms 31a. The opposite inner sides of the pair of pliers arms 31a are respectively provided with axially extending oblique grooves 32a.
  • the oblique grooves 32a communicate with the storage compartment 50 to close
  • the clamp 200 is pushed into the oblique groove 32a by the feeding device 5; the rear end of the clamp arm 31a is provided with a shaft hole 310 and an oblique hole 311, and the first plug 32 is inserted into the through hole 22 and the round hole 55 And the oblique hole 311, the second plug 31 is inserted into the elongated hole 51 and the shaft hole 310 to connect the front end of the pipe rod 20 and the pliers arm 31a, and make the pliers head 30 around the
  • the movement of the first plug 32 produces a shearing action or a clamping and unclamping action.
  • the length of the elongated hole 51 is used to limit the opening range of the pliers head 30.
  • the elongated hole 51 has a predetermined length extension along the feeding direction, so that the pliers head 30 is opened to a sufficient extent to facilitate the clamping of the closing clip 200.
  • the storage compartment 50 has a front compartment 61 and a rear compartment 62, that is, the front compartment and the rear compartment in the aforementioned FIGS. 1-6, and the front compartment 61 is used to store the closing clip 200.
  • the front end of the rear compartment 62 extends forwardly with an upper lip 52 and a lower lip 53 that are parallel to each other and spaced up and down.
  • the upper lip 52 and the lower lip 53 are provided with the round hole 55, and the first plug
  • the length of 32 is the same as the distance between the upper lip 52 and the lower lip 53, and the end of the clamp head 30 is clamped between the outer wall of the front compartment 61, the upper lip 52 and the lower lip 53, and passes through the first plug 32 It moves in the circular hole 55 to drive the clamp head 30 to open or clamp.
  • the storage compartment 50 is preferably a tubular shape, and the front compartment 61 of the storage compartment 50 is more preferably a flat tubular shape, which makes the structure more compact and improves the accuracy of the equipment.
  • the round hole 55 is close to the rear hatch, and the distance between the round hole 55 and the front end of the front compartment 62 is not less than the length of the two closing clips 200, the first plug 32 and the second The two plugs 31 will not block the closing clip 200, and the front compartment 62 is sufficient to accommodate two closing clips.
  • a through slot 512 and an anti-return clip 514 are provided on the top rod 511, and the through hole 22, the round hole 55 and the oblique hole are inserted through the first plug 32 311.
  • the second plug 31 is inserted into the elongated hole 51 and the shaft hole 310 to connect the front end of the pipe rod 20, the storage bin 6 and the clamp arm 31a, and the two plugs are then inserted
  • the through groove 512, through the action of the anti-return clip 514 makes the ejector rod 511 not automatically retract after clamping the first closing clip 200, but stays in place for the next clamping
  • the closed clip 200 can stop bleeding from multiple blood vessels in time, accurately and quickly. The whole process is easy to operate, improves the efficiency of clip application, shortens the operation time, improves the operation efficiency, can minimize bleeding, improve the quality of the operation, and reduce the operation risk.

Landscapes

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

Abstract

La présente invention concerne un applicateur d'agrafes multi-déclenchement et un appareil empêchant l'applicateur d'agrafes multi-déclenchement de se rétracter automatiquement, l'applicateur d'agrafes multi-déclenchement comprenant une poignée de poussée, une tige de tube, une tête de serrage montée à une extrémité avant de la tige de tube, un appareil d'alimentation disposé dans la tige de tube, une tige de poussée-traction et une chambre de stockage, l'appareil d'alimentation comprenant un élément de transport et un élément d'entraînement poussant l'élément de transport à se déplacer ; la tige de tube ayant un arbre disposé à proximité de l'extrémité avant, l'arbre étant utilisé pour fixer la tête de serrage en place, l'élément de transport présentant une rainure traversante en forme de barre, des parois de rainure sur deux côtés de la rainure traversante en forme de barre ayant au moins une paire d'éléments de fixation anti-rétraction en saillie, l'arbre traversant la rainure traversante en forme de barre et deux extrémités de celle-ci étant fixées à la tige de tube, un diamètre d'une extrémité de l'élément de fixation anti-rétraction étant inférieur à un diamètre de l'arbre, l'arbre étant maintenu par un ressort entre deux éléments de fixation anti-rétraction après que l'élément de transport pousse une agrafe de fermeture, et étant apte à empêcher ainsi l'élément de transport de se rétracter pendant l'utilisation ordinaire de l'applicateur d'agrafes multi-déclenchement, et empêcher l'élément d'entraînement de pousser l'élément de transport pour se déplacer vers l'avant ou de reculer en raison d'un mauvais fonctionnement.
PCT/CN2020/107299 2019-08-09 2020-08-06 Applicateur d'agrafes multi-déclenchement et appareil empêchant l'applicateur d'agrafes multi-déclenchement de se rétracter automatiquement Ceased WO2021027667A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201910732770.8A CN110432946B (zh) 2019-08-09 2019-08-09 防止连发施夹钳自动退位装置
CN201910732770.8 2019-08-09
CN201910733751.7 2019-08-09
CN201910733751.7A CN110432947B (zh) 2019-08-09 2019-08-09 连发施夹钳

Publications (1)

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WO2021027667A1 true WO2021027667A1 (fr) 2021-02-18

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PCT/CN2020/107299 Ceased WO2021027667A1 (fr) 2019-08-09 2020-08-06 Applicateur d'agrafes multi-déclenchement et appareil empêchant l'applicateur d'agrafes multi-déclenchement de se rétracter automatiquement

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WO (1) WO2021027667A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024294A1 (fr) * 1995-02-08 1996-08-15 Ethicon Endo Surgery Inc Poseur d'agrafes chirurgicales
CN206612825U (zh) * 2016-11-23 2017-11-07 张大宏 弹夹式连发血管夹施夹钳
CN108577923A (zh) * 2018-06-21 2018-09-28 黄荣泉 连发施夹钳
CN110432946A (zh) * 2019-08-09 2019-11-12 黄皆澔 防止连发施夹钳自动退位装置
CN110432947A (zh) * 2019-08-09 2019-11-12 黄皆澔 连发施夹钳
CN211534629U (zh) * 2019-08-09 2020-09-22 黄皆澔 连发施夹钳

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024294A1 (fr) * 1995-02-08 1996-08-15 Ethicon Endo Surgery Inc Poseur d'agrafes chirurgicales
CN206612825U (zh) * 2016-11-23 2017-11-07 张大宏 弹夹式连发血管夹施夹钳
CN108577923A (zh) * 2018-06-21 2018-09-28 黄荣泉 连发施夹钳
CN110432946A (zh) * 2019-08-09 2019-11-12 黄皆澔 防止连发施夹钳自动退位装置
CN110432947A (zh) * 2019-08-09 2019-11-12 黄皆澔 连发施夹钳
CN211534629U (zh) * 2019-08-09 2020-09-22 黄皆澔 连发施夹钳

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