47 results about "Ligation clip" patented technology

The invention discloses a manufacturing method of a ligation clip and the ligation clip, the ligation clip comprises a V-shaped ligation clip body, the ligation clip body is made of a high polymer material, the ligation clip body is provided with a first clip arm, a second clip arm and an elastic connecting part, the end part of the first clip arm is provided with a lock hook, and the end part of the second clip arm is provided with a lock catch; the ligature clip further comprises metal wires arranged in the first clip arm, the second clip arm and the elastic connecting portion, a plurality of grooves are formed in the outer surfaces of the metal wires, the ligature clip body wraps the metal wires through an injection molding process, and anchoring portions extending into the grooves are arranged in the ligature clip body. According to the ligation clamp, a rigid-flexible composite implementation mechanism is adopted, the metal wire serves as a rigid core, the ligation clamp body made of a high polymer material serves as a flexible base body, in addition, mutual movement of the ligation clamp body and the metal wire is effectively prevented through combination of the groove and the anchoring part, the mechanical property bottleneck of a traditional single-material ligation clamp is broken through, and the durability of the ligation clamp is improved.

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.

A surgical ligation clip includes a first jaw, a second jaw, and a hinge portion that pivotably couples the first jaw to the second jaw. The first and second jaws define respective clamping surfaces and include spaced bosses. Each of the spaced bosses include a transverse portion and a head portion that is oversized and has a diameter that is larger than the diameter of the transverse portions. The oversized head portions allow for the ligation clips to be securely supported on a clip applicator.

Provided are an absorbable biomedical polymer material, a ligation clip, and a method for preparing same. The ingredients selected for the absorbable biomedical polymer material consist of a first polymer and a second polymer. The first polymer consists of 50 wt%-100 wt% of poly(L-lactide) and 0 wt%-50 wt% of polyglycolide, and the second polymer is poly(p-dioxanone). The absorbable biomedical polymer material has suitable rigidity and flexibility, and can be used in preparing a medical device, such as a ligation clip. In particular, when containing 2.5 wt%-40 wt% of the first polymer, the ligation clip can readily pierce the fascia, and is less likely to undergo plastic deformation at a bend. Also disclosed are some structural forms of ligation clips and a method for preparing same.

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.

The application belongs to the technical field of medical devices, and particularly relates to a distributed feeding mechanism applied to a continuous clip applier. The application comprises a continuous clip applier main body, the continuous clip applier main body is provided with a pipe rod barrel, the pipe rod barrel is provided with a ligature clip conveying element and a distributed feeding type clamp head assembly. In the natural state during use, the distributed feeding type clamp head assembly is in a semi-closed state, the natural state of the clamp head in the structural design is semi-closed, the opening of the clamp head during loading is opened by the ligature clip, the clamp head and the ligature clip always maintain contact during the opening process, and the mechanism for driving the clamp head to close does not retreat again during one clip application process, does not have additional system impact, is reasonable in structure, and is relatively strong in practicality.

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.

A surgical ligation clip includes a first arm extending from a proximal end to a first distal end. The first arm includes a distal hook at the first distal end. The surgical ligation clip also includes a second arm extending from the proximal end to a second distal end. The second arm is pivotable relative to the first arm about a proximal hinge to clamp tissue between the first and second arms. The second arm includes a proximal portion and a distal portion. The distal portion is pivotable relative to the proximal portion about a distal hinge.

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 litigation 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 inserts (402, 404, 406) that are 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 ligation clip (10) is reduced or eliminated.

The invention discloses a clip applier. The clip applier comprises a tube body assembly, a jaw assembly and a handle assembly, the tube body assembly is provided with a near end and a far end and comprises an inner tube assembly, an outer tube assembly arranged on the outer side of the inner tube assembly in a sleeving mode and a feeding assembly located in the inner tube assembly, and the feeding assembly contains a ligation clip; the jaw assembly is connected to the far end of the tube body assembly; the handle assembly is connected to the near end of the tube body assembly and comprises a feeding handle, and the feeding handle is configured to control the outer tube assembly and at least part of the feeding assembly to move in the axial direction of the tube body assembly so as to control the feeding assembly to convey the ligation clips to the jaw assembly and / or control the jaw assembly to be in a semi-closed state or an open state. The clip applier is simple to operate, easy to control and safer to use.

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 first object of the present application is to provide a clip warehouse structure, comprising a first clip warehouse and a second clip warehouse for accommodating a plurality of ligature clips, and a first push clip piece and a second push clip piece; the feeding direction of the first clip warehouse is consistent with the feeding direction of the second clip warehouse, and the projections of the bottom plate of the first clip warehouse and the bottom plate of the second clip warehouse on the same plane coincide; the first push clip piece is inserted into the first clip warehouse to be able to push the ligature clip in the first clip warehouse to move to the distal end; the second push clip piece is inserted into the second clip warehouse to be able to push the ligature clip in the second clip warehouse to move to the distal end. Two ligature clips can be punched into the blood vessel at a time, and the operation efficiency is improved. The second object of the present application is to provide a clip warehouse assembly with the above-mentioned clip warehouse structure.

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 reinforced forceps head comprises two forceps head arms which are movably connected in a hinged mode, a set of opposite inner side faces of the two forceps head arms are provided with containing grooves extending in the length direction, and the containing grooves are used for containing clamping arms of ligation clamps. Convex lug blocks are arranged on the groove walls, close to the front end of the opening, of the two sides of the containing groove, clamping grooves are formed in the convex lug blocks, the clamping grooves in the two sides correspond to each other and are matched with limiting columns at the front end of the opening of the clamping arm of the ligation clamp, and a reinforcing ridge correspondingly located between the convex lug blocks on the two sides is arranged at the bottom of the containing groove; matched centering structures are arranged between a set of opposite inner side faces of the two tong head arms. When the reinforced forceps head and the clip applier clamp and close a ligation clip, the reinforced ridges play a role in pressurizing and reinforcing the positions, corresponding to the limiting columns, of the corresponding clamping arms on the ligation clip, and the centering structures play a role in aligning, so that the two clamping arms of the ligation clip can be closed together easily, stably, accurately and efficiently, and the ligation clip is convenient to use. And the surgical operation process and the surgical operation safety are ensured.

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.