31 results about "Ligation clip" patented technology

This utility model relates to a stable ligation clip, including an upper clamping arm, a lower clamping arm, and a hinge. The rear ends of the upper and lower clamping arms are hinged together, and the front of both the upper and lower clamping arms is provided with a positioning post for cooperating with the clamping forceps. The front ends of the upper and lower clamping arms are also provided with a locking structure that cooperates with each other. The clamping surfaces of the upper and lower clamping arms are provided with several anti-slip textures. The rear side of the hinge is provided with a first structure to improve stable contact with the pushing plate of the clamping forceps. The addition of a first structure that can stably contact the pushing plate on the continuous-fire clamping forceps, while retaining the original ligation clip structure design, makes it compatible with both continuous-fire clamping forceps and currently available single-fire clamping forceps. Moreover, the clamping is stable and the operating principle is the same, so doctors do not need to readjust.

The application discloses a clamp removing forceps and a jaw thereof, which is used for untying a ligature clamp, the ligature clamp comprising a first clamp arm and a second clamp arm connected by a rotating hinge, the first clamp arm being provided with a first protruding column, and the second clamp arm being provided with a second protruding column; the jaw comprising an upper jaw blade, a lower jaw blade and a pushing piece, the upper jaw blade and the lower jaw blade being openable and closable, the upper jaw blade and the lower jaw blade being respectively provided with a limiting groove and a limiting table, the limiting groove being used for positioning the first clamp arm and the second clamp arm when the ligature clamp is closed, and the pushing piece being used for pushing the ligature clamp when the ligature clamp is opened and for clamping the first protruding column and the second protruding column into the limiting table of the upper jaw blade and the limiting table of the lower jaw blade respectively. The jaw of the clamp removing forceps is provided with the limiting table and the limiting groove in the jaw blade, and the pushing piece is used for assisting, so that the operation difficulty and the damage risk of the ligature clamp are reduced.

The utility model relates to a composite ligation clip integration device which comprises an integration box, a placing base used for placing ligation clips is arranged in the integration box, clamping grooves used for clamping the ligation clips are formed in the top face of the placing base, and a plurality of clamping grooves are formed in the length direction of the placing base at intervals. A pressing plate is arranged in the integration box, a containing through groove for containing the placement seat is formed in the middle of the pressing plate in the width direction, elastic pressing pieces are arranged on the inner walls of the two sides of the containing through groove in the width direction, and the elastic pressing pieces on the two sides of the containing through groove in the width direction stretch into the corresponding clamping grooves and are arranged on the cylindrical protrusions of the corresponding ligation clamps in a pressed mode; a placing area I, a placing area II and a placing area III are arranged on the placing seat, a large-size ligature clip is placed in the placing area I, a medium-size ligature clip is placed in the placing area II, and a small-size ligature clip is placed in the placing area III. According to the technical scheme, the ligature clips of three specifications are integrated in the integration box, medical staff can directly take out the ligature clip of any required specification from the integration box conveniently, and operation is convenient and fast.

The utility model relates to a ligation clamp with a double-clamping-arm structure, which comprises a ligation clamp body and an upper clamping arm and a lower clamping arm. The rear ends of the upper clamping arm and the lower clamping arm are hinged, and the front ends are locked by a locking structure; the side walls of the front parts of the upper clamping arm and the lower clamping arm are provided with clip applier grasping columns; a first groove which is concave upwards and extends in the front-back direction is formed in the middle of the clamping face of the upper clamping arm. And a second groove which is sunken downwards and extends in the front-back direction is formed in the middle of the clamping surface of the lower clamping arm. The U-shaped ligature clip has the advantages that the groove structure is additionally arranged on a traditional U-shaped ligature clip structure, an upper clamping arm structure and a lower clamping arm structure are further derived, the clamping closing effect that one-time clamping closing is equal to clamping closing of two ligature clips can be achieved through the upper clamping arm structure and the lower clamping arm structure, the problems of slipping and automatic bouncing after installation and closing are avoided, and the ligature clip is convenient to use. And meanwhile, the operation of secondary clamping closing is omitted.

An intraoperative clamp loading device includes an elongated body that can be positioned at the surgical site via a cannula during endoscopic surgery to supply a ligation clamp to a clamp applicator. The elongated body includes structures for supporting and advancing the ligation clamp within the elongated body.

The utility model relates to an electric continuous ligation clip applier, a main body of the electric continuous ligation clip applier is a continuous ligation clip applier, the continuous ligation clip applier is divided into a clip applying part and a percussion part, and the percussion part controls a push rod in the clip applying part to move back and forth so as to realize the actions of clamping, slightly closing a forceps head and closing the forceps head; the cutting assembly comprises a cutter, an electromagnetic valve, a main control board, a power supply and a cutting button; the main control board and the power supply are arranged in the percussion part and are electrically connected with each other; the cutting button is mounted on the outer side wall of the percussion part and is electrically connected with the main control board; the electromagnetic valve is arranged on the inner wall surface of the front end of the sleeve of the clamping applying part and is electrically connected with the main control board; and the cutter is connected with the electromagnetic valve and is arranged on the side edge of the clamp head of the clamp applying part. According to the continuous ligation clip applier, the tool bit which is independently controlled is arranged on the continuous ligation clip applier in a matched mode, continuous ligation, clip applying and cutting can be integrated, operation efficiency is improved, and operation time is shortened.

The application provides a ligature clip and a clip storage device, wherein a proximal part of a closed tail of the ligature clip is provided with a socket rearward for a push clip head insertion slot, and the insertion slot is located at a middle part of the closed tail in a vertical direction; the insertion slot comprises a first guide slot and a first insertion slot which are sequentially communicated from proximal to distal, the first guide slot has oppositely arranged first and second slot openings, the first guide slot is communicated with the first insertion slot through the second slot opening, the size of the first slot opening in the vertical direction is greater than the size of the second slot opening in the vertical direction, the first insertion slot has a slot bottom and oppositely arranged first and second slot walls, the first slot wall is used for abutting an upper surface of the push clip head, the second slot wall is used for abutting a lower surface of the push clip head, and the slot bottom is used for abutting the push clip head to make the clip sending more stable.

The application discloses a ligature clamp, and relates to the technical field of medical devices, which comprises a first clamp arm and a second clamp arm, the length direction of both of which is respectively provided with an elastic connecting part and a locking unit at both ends; the opposite inner sides of the first clamp arm and the second clamp arm form a clamping surface for clamping a ligature tissue; the clamping surface is sequentially provided with an anti-falling locking area, a gradual transition area and a pressure reduction buffer area along the transverse width direction, the contact proportion of the surface microstructure of each area to the ligature tissue sequentially decreases, so that the ligature tissue is sequentially weakened in stress and is limited and clamped; the ligature clamp can realize gradual clamping, reduces local high pressure concentration while ensuring the stability of the ligature, and reduces the risk of excessive compression on blood vessels or soft tissues; and the technical problem that the existing ligature clamp lacks a gradual clamping process and excessive compression on blood vessels or soft tissues due to local high pressure concentration exists in the clamping process is solved.

A ligation clip loading device includes a cannula including a cannula body and an instrument lumen extending through a longitudinal axis of the cannula body, and a stack of ligation clips axially arranged about the instrument lumen. The ligation clips are accessible through a series of slots allowing for loading of an endoscopic clip applier with the ligation clips within a body cavity, such as an intra-abdominal cavity.

Disclosed herein are polymer ligature clip pincers and applier for applying polymer ligature clip pincers to tissue. More particularly, the polymer ligature clip pincers include first and second beams that are spaced apart, which can be coupled to one another and movable from an open position of reduced diameter that exerts minimal strain on the ligature clip pincers to a clamped position and to an applier for delivering such ligature clip pincers to a surgical site.

The utility model discloses a clip applier with a transmission mechanism, which comprises a clip head assembly and a device body assembly, the near end of the clip head assembly is connected with the far end of the device body assembly, the clip head assembly comprises a clip head and an outer tube, the outer tube is sleeved on a ligature clip, and the device body assembly comprises an instrument shell, a trigger, the transmission mechanism, a push-pull rod and a reset spring; the trigger is pulled towards the near end, the drive transmission mechanism pushes the push-pull rod to compress the reset spring and enable the push-pull rod to slide towards the far end, and therefore the ligation clamp is controlled to be closed. The trigger is pushed towards the far end, the transmission mechanism is driven to pull the push-pull rod to slide towards the near end, meanwhile, the reset spring is reset, and therefore the ligation clamp is controlled to be opened. The utility model has the advantages of simple structure, good effect, low cost and easiness in process realization.

A continuous clip applier comprises a tube body assembly and a feeding assembly. The feeding assembly is located in the pipe body assembly and comprises a fixing part and a pushing part which are oppositely arranged in the radial direction of the pipe body assembly, the pushing part comprises a first base and a plurality of first limiting structures which are arranged in the axial direction of the pipe body assembly, and the fixing part comprises a second base and a plurality of second limiting structures which are arranged in the axial direction of the pipe body assembly; the plurality of second limiting structures are arranged along the axial direction; the multiple first limiting structures are arranged on the side, facing the fixing part, of the first base, the multiple second limiting structures are arranged on the side, facing the pushing part, of the second base, a gap is formed between the fixing part and the pushing part and is configured to contain a ligation clip, and the multiple first limiting structures and the multiple second limiting structures are configured to limit the ligation clip; the pushing part is configured to be controlled to move relative to the fixing part, and the first base of the pushing part and the multiple first limiting structures are rigid structures. The feeding assembly of the continuous clip applier can continuously and reliably convey the ligation clips.

A ligation clip applier includes first and second jaw members and an elongated shaft assembly secured thereto. The elongated shaft assembly includes a tube supporting clips therein and a tab assembly supported within the tube and including angled tabs engaged with the clips for moving the clips through the tube in response to movement of the tab assembly relative to the tube. The tab assembly is positionable to load a distal-most clip into the end effector when the tab assembly moves relative to the tube. The tube is selectively engageable with an outer surface of the first and second jaw members to clamp the distal-most clip between the first and second jaw members.

The invention belongs to the technical field of polymer materials, and particularly relates to an absorbable ligature clip based on a PPDO / PU composite material and a preparation method of the absorbable ligature clip. The invention provides a ligature clip which is prepared from a PPDO / PU composite material, and the composite material is prepared by taking poly (p-dioxanone) (PPDO) and degradable polyurethane (ISO-PU) as raw materials and carrying out melt extrusion and blending according to the ISO-PU mass ratio of 5-20%. The ligature clip retains the absorbable characteristic, the mechanical strength, the clamping stability and the structural stability are optimized by regulating and controlling the ISO-PU proportion, the medical use requirement of an operation on the ligature clip can be met, and the application prospect is wide.

The invention discloses a ligature clip, which relates to the technical field of medical instruments and comprises a first clip arm and a second clip arm, and an elastic connecting part and a locking unit are respectively arranged at two ends in the length direction of the first clip arm and the second clip arm; the opposite inner sides of the first clamping arm and the second clamping arm form a clamping surface for clamping a to-be-ligated tissue; the clamping face is sequentially provided with an anti-disengaging locking area, a gradual transition area and a pressure reduction buffer area in the transverse width direction, the contact ratio of the surface microstructure of each area to the to-be-ligated tissue is sequentially decreased, and therefore limiting clamping with the stress sequentially decreased on the to-be-ligated tissue is formed. The ligature clamp can achieve gradual clamping, local high pressure concentration is reduced while ligature stability is guaranteed, and the risk of excessive compression on blood vessels or soft tissues is reduced; the technical problems that an existing ligature clamp lacks a progressive clamping process, and blood vessels or soft tissues are excessively pressed due to local high pressure concentration in the clamping process are solved.

The utility model relates to a split type running clip applier which comprises a handle assembly, a clip rod assembly and a clamping structure. The handle assembly and the forceps rod assembly are detachably connected through a clamping structure. The clamping structure comprises two clamping rings, each clamping ring comprises an annular part and a pressing part, and notches are formed in the two ends of each annular part; a plurality of arc clamping pieces are arranged on the inner side face of the annular part. The inner side surface of the pressing part is fixedly connected with an annular elastic sheet; the clamping structure further comprises a connecting pipe arranged at the rear end of the forceps rod assembly, a plurality of clamping grooves distributed at equal intervals are annularly formed in the periphery of the connecting pipe, and the clamping grooves are connected with the arc clamping pieces in a matched mode. The forceps rod assembly is detachably connected and can be detached and replaced, so that the ligation clips can be simply and rapidly supplemented or replaced, ligation clips of different models can be rapidly replaced in an operation, the operation time can be saved, too many similar instruments do not need to be prepared, and the number of operation instruments is reduced.

The utility model relates to a forceps head assembly and a clip applier, and belongs to the technical field of medical tools, the forceps head assembly comprises a first forceps head and a second forceps head which are connected through a pin shaft, the inner side of a forceps arm of the first forceps head is provided with a first groove for containing a ligature clip, and the second forceps head is provided with a second groove for containing a ligature clip. A first circular groove for containing the ligation clamp supporting lug is further formed in the side wall of the end of the first groove. Correspondingly, a second groove and a second circular groove are formed in the tong arm, facing the first tong head, of the second tong head. A plug is arranged at the root part of the clamp arm of the first clamp head, a slot is formed in the root part of the clamp arm of the second clamp head, and the plug can be inserted into the slot for closing and limiting. Due to the fact that the closing limiting structure is additionally arranged between the two forceps heads, it is guaranteed that the forceps heads do not deflect when closed, and it is guaranteed that the ligature clamp is closed accurately.

The present application belongs to the technical field of medical instrument accessories, and particularly relates to a multi-release ligature clip base. In the prior art, ligature clips are mostly installed into a clip applier by a manual assembly mode of a user. Such an installation mode is time-consuming, laborious and inconvenient to operate. The present application provides a multi-release ligature clip base, which comprises a base with a cavity inside, a thimble arranged in the cavity, the thimble being fixedly connected with the base, a clip storage mechanism arranged above the thimble and capable of storing ligature clips, the clip storage mechanism being slidably connected with the base, an upper and lower through clip outlet channel arranged in the clip storage mechanism, and the end of the thimble being extended into the clip outlet channel by sliding the clip storage mechanism. The thimble is arranged in the base, and the ligature clips in the clip storage mechanism can be ejected into the clip applier through the clip outlet channel by the thimble in the assembly process. A plurality of ligature clips can be repeatedly ejected into the clip applier, so that the clip applier can release multiple clips when in use.

The invention provides a clamping pincer device. The clamping pincer device comprises a magazine and a clamping device, the first clamping head comprises a first clamping end, a first clamping arm and a second clamping arm; the second clamping head comprises a second clamping end, a third clamping arm and a fourth clamping arm; the first clamping arm and the third clamping arm are rotationally connected to the first surface, and the second clamping arm and the fourth clamping arm are rotationally connected to the second surface. The elastic piece is arranged on the first surface and connected with the ends, away from the first clamping end, of the first clamping arm and the third clamping arm. The shifting piece is arranged on the second surface and is in sliding connection with the ends, away from the second clamping end, of the second clamping arm and the fourth clamping arm. By means of the clamping forceps device, the probability that after a ligature clip is triggered by an instrument, a flying nail is generated or the ligature clip deviates from the top can be reduced.

The utility model provides a ligation clip and aims at solving the technical problems that an existing ligation clip is insufficient in buckling reliability and prone to loosening and displacement. The ligature clip comprises a first clip arm and a second clip arm, a hook structure is arranged at the far end of the first clip arm, and the hook structure comprises a hook portion with a groove formed in the inner side and a cutting portion arranged at one end of the hook portion; a clamping head structure is arranged at the far end of the second clamping arm; the clamping head structure comprises a limiting column matched with the groove; and when the first clamping arm and the second clamping arm are closed, the limiting column is clamped in the groove. According to the utility model, the buckling reliability of the ligature clamp is greatly improved through the matching of the clamping hook structure and the clamping head structure, the continuous and stable clamping effect is ensured, and a safer and more reliable guarantee is provided for a surgical operation.

The clip applier comprises a clip head assembly and a clip applier body assembly, the near end of the clip head assembly is connected with the far end of the clip applier body assembly, the clip head assembly comprises a clip head and an outer tube, the outer tube is connected to a ligation clip in a sleeved mode, the clip applier body assembly comprises a trigger assembly, a sliding assembly and a ratchet component, and the trigger assembly comprises a trigger body and an elastic component; the trigger main body is pulled towards the near-end direction to drive the elastic component to jump in the ratchet component, so that the sliding component slides towards the far-end direction, and the ligation clip is controlled to be closed; the trigger body is pushed in the far end direction, the elastic component is driven to jump in the ratchet component, the sliding part slides in the near end direction, and therefore the ligature clip is controlled to be opened.

A clip applier is provided, which includes a handle assembly, a barrel assembly, a proximal end of the barrel assembly being connected with the handle assembly, and a jaw assembly, a proximal end of the jaw assembly being connected with a distal end of the barrel assembly. The barrel assembly includes a sleeve, a storage assembly disposed in the sleeve and configured to store a plurality of ligating clips, and a push assembly disposed in the sleeve and configured to push a distal-most ligating clip of the plurality of ligating clips into the jaw assembly. The push assembly includes a clamping mechanism, the clamping mechanism including a force receiving portion and a clamping portion, and the clamping mechanism is configured to cause the clamping portion to clamp the distal-most ligating clip by applying a force to the force receiving portion, thereby causing the distal-most ligating clip to move in a distal direction.

The utility model provides a split type ligation clamp which aims at solving the technical problems that an existing integrated ligation clamp is unstable in closing force, prone to fatigue and limited in material function. The ligature clip comprises a first clip arm and a second clip arm, wherein a connecting column is arranged at the near end of the first clip arm; the near end of the second clamping arm is provided with a connecting groove matched with the connecting column. Wherein the connecting column is rotatably assembled in the connecting groove, so that the first clamping arm and the second clamping arm form a movable connecting structure which can be opened and closed relatively. By means of the split type structural design, the first clamping arm and the second clamping arm of the ligation clamp are arranged to be mutually independent parts and can be machined and formed respectively, closing force can be controlled within a certain range, deviation of the rotating angle is reduced, it is guaranteed that tissue is clamped firmly and reliably in an operation, the fatigue life of the ligation clamp is effectively prolonged, and meanwhile the ligation clamp is convenient to use. All parts are allowed to be made of the most appropriate materials, and durability is ensured.

A surgical clip may be configured to ligate tissue. The surgical clip may include first and second leg members. The first leg member may have a proximal portion, a distal portion, a convex first inner surface, and a convex first outer surface. The first leg member may also include an inner portion at least partially defining the first inner surface and an outer portion at least partially defining the first outer surface. The inner and outer portions may be joined at first and second portions of the first leg member and separated by a channel. The second leg member may include a proximal portion, a distal portion, a second inner surface, and a second outer surface. The first and second leg members may be movable relative to each other between open and closed configurations, and the first and second inner surfaces may be configured to ligate the tissue when in the closed configuration.

The application designs a continuous firing clip applier, relates to the technical field of medical devices, and comprises a bullet loading mechanism and a clip applying mechanism. The ligation clip is placed in the bullet loader, is extruded into a semi-closed state by the side pressing plate, and is pressed into the bullet magazine by the upper pressing plate and the pushing element. The upper sleeve and the lower sleeve are buckled to assemble the bullet magazine assembly. The bullet magazine assembly is inserted into the outer extension pipe and can rotate 360 degrees with the hand wheel. The trigger drives the outer extension pipe to move, the outer extension pipe extrudes the clip head in the bullet magazine assembly to make the clip head close, and the ligation clip is buckled. The outer extension pipe is reset by the first spring, and the clip head is reset by the U-shaped spring. The shift fork drives the bullet changer to move, thereby driving the pushing element to move forward in the bullet magazine. The pushing element pushes the next ligation clip to the position of the previous ligation clip, realizes rapid reloading, and drives the counting plate to move at the same time of reloading. The numbers on the counting plate correspond to the number of remaining ligation clips in the bullet magazine, and synchronous display is realized.

A continuous clip applier comprises a tube body assembly, a jaw assembly, a ligation clip assembly, a cutting assembly and a handle assembly. The pipe body assembly comprises an inner pipe assembly and an outer pipe assembly; the jaw assembly comprises a first tong head and a second tong head which are connected to the inner pipe assembly and arranged oppositely. The ligation clip assembly comprises a plurality of ligation clips which are connected; the cutting assembly comprises a first tool bit and a second tool bit which are connected to the inner pipe assembly and arranged oppositely. The handle assembly is configured to control the inner tube assembly and the outer tube assembly to move relatively in the axial direction, and the outer tube assembly abuts against the first tool bit and the second tool bit so as to control the first tool bit and the second tool bit to complete cutting operation on the ligation clamp and control the first forceps head and the second forceps head to complete clamping operation on the ligation clamp. The continuous clip applier has a more stable and reliable clip applying effect.

The application provides a pushing and clamping device, wherein the pushing and clamping device comprises a pushing and clamping piece, a clamping bin and a pushing and clamping mechanism, the pushing and clamping piece comprises a pushing part for abutting with a closed tail of a ligature clamp to be inserted into a forceps, the pushing part comprises a mounting plate, a first pushing rod and a second pushing rod, a first end of the first pushing rod is hinged to the mounting plate, a first end of the second pushing rod is hinged to the mounting plate, a second end of the first pushing rod and a second end of the second pushing rod are both distally extended from the mounting plate, and a V-shaped opening is formed between the second end of the first pushing rod and the second end of the second pushing rod, and the first pushing rod and the second pushing rod have an acting force for promoting the V-shaped opening to have an increasing trend. The stability of the pushing and clamping piece head part for the ligature clamp closed tail to be righted and the stability of the ligature clamp to be sent are improved.

The invention relates to an electric continuous ligation clip applier, a main body of the electric continuous ligation clip applier is a continuous ligation clip applier, the continuous ligation clip applier is divided into a clip applying part and a percussion part, and the percussion part controls a push rod in the clip applying part to move back and forth so as to realize the actions of clamping, slightly closing a forceps head and closing the forceps head; the cutting assembly comprises a cutter, an electromagnetic valve, a main control board, a power supply and a cutting button; the main control board and the power supply are arranged in the percussion part and are electrically connected with each other; the cutting button is mounted on the outer side wall of the percussion part and is electrically connected with the main control board; the electromagnetic valve is arranged on the inner wall surface of the front end of the sleeve of the clamping applying part and is electrically connected with the main control board; and the cutter is connected with the electromagnetic valve and is arranged on the side edge of the clamp head of the clamp applying part. According to the continuous ligation clip applier, the independently-controlled tool bit is matched with the continuous ligation clip applier, continuous ligation, clip applying and cutting can be integrated, the operation efficiency is improved, and the operation time is shortened.

The utility model discloses a clip applier using a lock catch type ribbon and relates to the field of medical instruments, the lock catch type ribbon adopts a one-way sawtooth ribbon with a lock hole in the head, and the clip applier is used for driving the ribbon to tighten, so that the ribbon can tighten a to-be-ligated part centripetally in an O shape; the clip applier comprises a fixed handle, a sleeve, a movable handle, a trigger, a first clamping arm, a second clamping arm, a push block, a first pull rod and a second pull rod; during working, the fixed handle and the movable handle are held tightly, so that the second clamping arm is clamped towards the first clamping arm, then the trigger is pulled, and the free end of the ribbon is pushed by the push block to penetrate through the lock hole frame and is centripetally tightened; the clip applier is simple in structure and convenient to operate, can overcome the defect that an existing V-shaped or U-shaped ligation clip is difficult to clip thick bundle-shaped tissue, can be matched with the shape of a tissue bundle, is uniform in tissue stress, tight in attachment and firm in ligation, and is particularly suitable for ligation of thick tissue bundles such as spleen pedicles, kidney pedicles, liver segments or liver pedicles of liver leaves.

A ligating clip (10) includes a hinge portion (300) having a flexible insert assembly (400) embedded in a body portion of the hinge portion (300). The flexible insert assembly (400) includes an insert (402, 404, 406) formed of a material that is more flexible than a material forming the body portion of the hinge portion (300). In this manner, plastic deformation in the hinge portion (300) of the ligating clip (10) is reduced or eliminated.