39 results about "Meniscal suture" patented technology

An instrument for surgical suturing includes a shaft, and a needle disposed slidably for longitudinal travel with respect to the shaft. A prong formed on one end of the shaft projects across a longitudinal axis of the needle and has an opening formed through the prong that provides a clearance through which a tip portion of the needle passes when it is advanced. Slots formed on a surface of the prong facing the shaft releasably hold suture across the opening. Advancing the needle through the clearance allows a hook formed on the tip of the needle to capture the suture. Once withdrawn, the needle draws the suture back through tissue pierced during advancement. The suture is released from the slots and drawn back through the tissue for further knot tying and suturing to effect the tissue repairs.

The invention discloses a meniscus suture positioning guider which comprises a positioning arm and a guide tube. A circular hole or groove is formed in the front end of the positioning arm and corresponds to a pointed end of a meniscus puncture needle to penetrate through the meniscus puncture needle pointed end, a base in the lower portion of the positioning arm is of a hollow structure, the guide tube can be inserted into the base, the guide tube is of a hollow structure, and the meniscus puncture needle can be inserted into the guide tube. The meniscus suture positioning guider has the advantages that the structure is simple, the guider is easy and convenient to operate, the inner edge of a meniscus torn portion is pressed downwards by the front end of the positioning arm in a meniscus injury suture operation, a meniscus suture needle can precisely penetrate through the guide tube and the inner edge of the meniscus torn portion to reach the circular hole or groove in the front end of the positioning arm, and the defects that the meniscus puncture needle is blindly penetrated and lack of precision, and blood vessels, nerves, meniscus tissue and the like are damaged due to lots of punctures are overcome. The guider shortens time for the meniscus suture operation clinically, simplifies operation steps and improves operation quality.

The invention provides a medical degradable magnesium alloy meniscus suture line, and relates to a meniscus suture line, aiming at solving the technical problems such as high brittleness and limited length when a catgut line is taken as a suture line. The medical degradable magnesium alloy meniscus suture line consists of a degradable magnesium alloy suture line and a degradable medicine-carried coating layer. The meniscus suture line provided by the invention is high in hardness, and unlimited in length, and the suture line is degradable per se after a meniscus is healed, so that the healed meniscus can play the physiological function more perfectly.

The invention relates to a device for meniscus suture. The device comprises a front gun handle, a rear gun handle, a needle core and a duckbill clamp, wherein the front handle and the rear handle aremovably connected into a handle structure of a pistol, a movement guide mechanism and an elastic reset mechanism are arranged between the front handle and the rear handle, the movement guide mechanismis used for guiding the rear handle to move towards the front handle when a holding force is applied, and the elastic reset mechanism is used for driving the rear handle to make reset motion when theholding force is released; the needle core mainly consists of a needle base, a needle rod and a puncture needle which are connected in sequence, the needle base is connected with a rear gun handle, and the puncture needle is positioned on one side, which is far away from the rear gun handle, of the front gun handle; and the duckbill clamp is positioned on one side, which is far away from the rearhandle, of the front handle and is used for clamping the tissue to be sutured, the duckbill clamp comprises an upper clamping plate and a lower clamping plate, a puncture needle passage through whicha puncture needle passes is arranged in the lower clamping plate, and a puncture needle through hole through which the puncture needle passes is formed in the upper clamping plate. The device has theadvantages of convenient operation, safety, simplicity, low price and high suture efficiency.

The invention discloses a one needle and one thread menisci stitching instrument, which belongs to the field of medical instruments and comprises a sewing needle and a guiding needle, wherein the sewing needle is provided with an axial through hole which penetrates through the needle and the guide needle, the bottom surface of the groove penetrates through the side wall of the axial through hole,the upper end of the groove penetrates through the oblique incision, and the lower end of the guide needle is provided with a tapered sharp part. The radial dimension of the sharp part is smaller thanradial dimension of the axial through hole, and the oblique incision is in smooth transition with the inner wall of the axial through hole and the outer wall of the sewing needle. The stitching instrument enables the operator to quickly and accurately determine the needle insertion angle, the needle inserting point, the needle inserting path and the needle out point under the condition that the line of sight is blocked.

The invention provides a meniscus suturing tool adopting an outside-to-inside method. The tool comprises a handle and a suturing needle, one end of the suturing needle is a needle head, the other endof the suturing needle is a needle tail, and during use, the suturing needle is fixedly installed on the handle through the needle tail; the suturing needle is internally provided with an axial through hole, the side wall of the needle head is provided with a suture outlet, and during use, the suture in the axial through hole of the suturing needle is led out from the suture outlet. According to the meniscus suturing tool, the suturing needle is provided with the side-face independent suture outlet, and the suture is not cut. The handle is arranged, the needle tail is fixed to the handle during use, shedding is not easily caused after connection, and the tool is easy to hold for operation. During clinical operation, single-needle operation suturing can be conducted, and double-needle operation suturing can also be conducted.

The invention discloses a meniscus suture needle and a meniscus suture system and relates to the technical field of medical instruments. The meniscus suture needle comprises a needle rod, the front section of the needle rod is warped in a curved arc shape and gradually becomes smaller along with forward extension to form a needle tip, the needle rod is of a hollow structure, a notch is formed in the front section of the needle rod, the notch expands and becomes larger inwards from the surface of the needle rod, so that a barb part capable of hooking a pull suture is formed at the notch, the notch is communicated with an inner cavity of the needle rod, a hook tip of the barb part faces the rear portion of the needle rod, the rear section of the needle rod is connected with a handheld part convenient for a hand to grab, a first fixing part for fixing one end of a suture and a second fixing part for fixing the other end of the suture, when the meniscus suture needle is used, a suture linecan penetrate into the inner cavity of the needle rod from the rear end of the needle rod and penetrates out of the notch, and then the two ends of the suture line are fixed through the first fixingpart and the second fixing part respectively. The meniscus suture needle has the advantages of being more convenient to use, higher in operation efficiency, better in suture effect and higher in clinical application and popularization value.

The invention discloses a meniscus stitching instrument. The meniscus stitching instrument comprises a handle, a propelling device on the handle, a needle rod, and an implant fixing piece at the headend of the needle rod, wherein the propelling device comprises a spiral driving device and an output shaft sleeve, the spiral driving device is connected with one end of the output shaft sleeve, and the other end of the output shaft sleeve makes contact with the implant fixing piece and is attached to the implant fixing piece; the spiral driving device is used for driving the output shaft sleeve to rotate and pushing the output shaft sleeve to do reciprocating motion in the needle rod. According to the meniscus stitching instrument, the thread outgoing mode and the thread outgoing position arebetter controlled, power is more stably transmitted, and the operation precision is higher.

The invention discloses a meniscus suturing instrument in the field of medical equipment. The instrument comprises a cannula, a needle pushing tube is connected to one end of the cannula, and a handleis connected to the end, away from the cannula, of the needle pushing tube; a needle pushing rod is slidingly connected into the cannula, a needle pushing handle is slidingly connected into the needle pushing tube and connected with the needle pushing rod, a suture needle is arranged in the cannula at the outer side of the end, away from the needle pushing handle, of the needle pushing rod and comprises two syringe needles, and a suture is connected between the two syringe needles. According to the meniscus suturing instrument, through design of the double syringe needles of the suture needleand design of the cannula, the needle pushing rod and the needle pushing handle, suturing can be completed merely through one-time puncture in the meniscus suturing surgery, and in the suturing process, vice-damage caused to the meniscus by repeated puncture on the meniscus with the suture needle cannot be caused.

The invention discloses a hinge block meniscus stitching instrument, and belongs to the technical field of meniscus stitching devices. The hinge block meniscus stitching instrument includes a handle assembly, a needle tubing assembly and an implant, wherein a drive mechanism is arranged on the handle assembly, the needle tubing assembly is mounted on the handle assembly, and an inner needle is connected with the drive mechanism so that the inner needle is driven by the drive mechanism to slide inside an outer needle; the implant includes an hinge plate, a hinge rotating shaft and at least twocheck blocks, the check blocks are arranged on the hinge rotating shaft, and are put in the outer needle in a closed shape, and stitching threads are wound around the check blocks; and the check blocks have the arrangement that after the implant is pushed by the inner needle out of the outer needle, the check blocks are opened under the pull action of the stitching threads, or stretch by itself, so that the check blocks are attached to a meniscus. After the implant is pushed out, the check blocks can be stuck on the meniscus, so that implantation is completed.

The invention relates to a knotting method for one group of surgical slidable knots. The surgical slidable knots are mainly used for fixing tissues in the process of suturing and binding under endoscopes such as an arthroscope and the like and also can be applied to development of related surgical products such as a meniscus stitching instrument and the like. Each surgical slidable knot mainly comprises an axis formed at one end of a suture and one or a plurality of surgical knots surrounding the axis, which are formed at the other end of the suture. The slidable knots can freely select the number of the surgical knots according to the condition of an operation, has good locking performance and are difficult to loosen.

The invention relates to a multi-crosslinking hydrogel for meniscus repair and a preparation method of the hydrogel. The hydrogel is prepared from a first solution and a second solution, a first component contained in the first solution is a modified collagen substance with a side chain containing a sulfydryl group and an amino group, and a second component contained in the second solution is modified polysaccharide with a side chain containing an aldehyde group and succinimide. The preparation method includes blending the first solution and the second solution. The multi-crosslinking meniscusrepair hydrogel can be applied to meniscus sutures to form a protective barrier, and can protect the meniscus sutures from physical wearing of articular cartilages in a recovery period; the gel is endowed with a self-repairing function through dynamic crosslinking, tiny defects of the gel can be automatically repaired, healing of sutured wounds can be promoted, tiny gaps in sutured positions arefilled, and therefore meniscus repairing is promoted, the postoperative recovery time is shortened, and the effect after healing is improved; in addition, the gel can also be used for filling mild articular surface defects, and cartilage defects are repaired in cooperation with a micro-fracture operation.

The invention discloses a posterolateral tibial plateau condyle anatomical plate, comprising a first locking screw hole, a plate body and other elements, wherein the first locking screw hole, a second locking screw hole, a third locking screw hole, a fourth locking screw hole, a fifth locking screw hole, sixth locking screw holes, overlapped holes, a first meniscal suture hole, a second meniscal suture hole and a third meniscal suture hole are all located on the L-shaped plate body, the first meniscal suture hole, the second meniscal suture hole and the third meniscal suture hole are located above the first locking screw hole, the second locking screw hole, the third locking screw hole, the fourth locking screw hole and the fifth locking screw hole, the four sixth locking screw holes are located below the first locking screw hole, the second locking screw hole, the third locking screw hole, the fourth locking screw hole and the fifth locking screw hole, and the overlapped holes are located below the sixth locking screw holes. The posterolateral tibial plateau condyle anatomical plate disclosed by the invention is convenient to mount, immobile and firm, and safe and effective.

The invention provides a puncture locating system applicable to meniscus suture. The puncture locating system comprises a puncture needle (1), an optical fiber force sensor (2), a cavity (3), a near-end solenoid coil (4) and a far-end solenoid coil (5), wherein the optical fiber force sensor (2) is arranged on the tube wall at a far end part of the puncture needle (1), and iron powder is arranged in the cavity (3); the near-end solenoid coil (4), the cavity (3) and the far-end solenoid coil (5) are arranged sequentially. When the optical fiber force sensor detects that the far end of the puncture needle reaches a soft tissue interface, the iron powder is attracted to the near end and the far end of the cavity alternately, so that density distribution in the cavity is changed alternately, the far end part of the puncture needle in an ultrasonographic image is obviously different from other static parts, and the fact that the far end of the puncture end is located in the interface of the soft tissue at the moment can be known.

The invention discloses a meniscus suture system and a manufacturing method, the meniscus suture system comprises an implant and an inserter, the implant comprises a fixing block and a suture, and the inserter comprises a handle, a push button, a push needle, a puncture needle and a limiting sleeve; wherein a guide groove is formed in the handle, and a first guide groove and a second guide groove are respectively formed in the guide groove; the first push button and the second push button are clamped in the first guide groove and the second guide groove together with the fixing block T1 and the fixing block T2 respectively, and six depth gears are designed to be matched with the limiting sleeve; the puncture needle is bent upwards, straightly and downwards, tissue can be punctured easily, scales are marked outside the puncture needle, the puncture needle is used in cooperation with the limiting sleeve, and convenience and safety of meniscus suture are improved. Therefore, the implant is triggered and pushed out twice through a push rod triggering mechanism, and the depth limiting effect of the limiting sleeve is matched, so that convenience and safety of meniscus suture depth limiting and positioning are met; and the curled puncture needle structure meets a smaller puncture diameter, low-incisura and 1mm implants can be realized, and the precision of meniscus suture is met.

The invention relates to a meniscus suturing instrument with good stability, which comprises a handle, a push-out mechanism, a puncture mechanism, a first implant and a second implant, and the first implant and the second implant are arranged in the puncture mechanism. The push-out mechanism comprises a main rod, a push handle and a coaxial driving mechanism connected with the main rod and the push handle, the main rod is used for pushing the first implant and the second implant out of the puncture mechanism, the push handle is arranged on the handle in a sliding mode, and the coaxial driving mechanism is used for transmitting pushing force of the push handle to the main rod. Wherein the coaxial driving mechanism can guarantee the coaxiality between the push plate and the main rod, the phenomenon that the push plate is stuck and cannot be pushed is avoided, and rapid push-out of the first implant and the second implant is guaranteed. Operation time can be effectively shortened, labor intensity of medical staff is relieved, potential risks borne by patients are reduced, effective healing of body tissue is guaranteed, and tedious or dangerous operation of secondary pushing out is omitted.

The invention relates to the technical field of medical equipment, in particular to a meniscus suturing device and a using method thereof. The meniscus suture device provided by the invention comprises a first needle body and a second needle body which are arranged in the same direction, a holding part is arranged on the main body; the first transmission device is used for moving the first needle body, the first transmission device comprises a first force application part driven by finger gripping force, the first force application part is arranged on one side of the gripping part, and the movement direction of the first force application part is opposite to that of the first needle body; and the second transmission device is used for moving the second needle body, the second transmission device comprises a second force application part driven by finger thrust, and the second force application part and the second needle body are the same in moving direction. Through cooperative use of the holding part, the first transmission device and the second transmission device, in the meniscus suturing process, the force of medical staff during meniscus puncture can be better controlled and fed back.

The invention relates to a simple inside-to-outside meniscus stitching instrument. The simple inside-to-outside meniscus stitching instrument comprises a suture needle, a handle and a round needle; the handle is connected with the suture needle; the suture needle comprises a needle body and a needle head connected with the needle body, the needle head is of a solid structure, and the needle head is provided with a hole for penetrating through a silk suture; and the tip of the round needle is a blunt head. According to the technical scheme of the simple inside-to-outside meniscus stitching instrument, the round needle is in a half circular arc shape, the cross section is circular, and the included angle between the needle head and the needle body is 0 degree to 30 degrees. The simple inside-to-outside meniscus stitching instrument is used for solving the high cost of the stitching instrument, can be reused, and gives patients more choice rights; and secondly, the needle head of the suture needle of the inside-to-outside meniscus stitching instrument only needs a hole for penetrating and passing through the silk suture, and the simple inside-to-outside meniscus stitching instrument is basically a solid structure and hard enough no to zigzag in a joint easily.

The invention discloses a meniscal stitching needle used for arthroscopic knee surgery. The stitching needle comprises a needle tubing, a handle which covers one end of the needle tubing, and a lead blocking device arranged in the handle, wherein the handle is provided with a needle tubing mounting slot, a lead through slot, a cavity and a mounting hole; the needle tubing mounting slot and the lead through sot are coaxial; the cavity is arranged between the needle tubing mounting slot and the lead through slot; the mounting hole is arranged on the side wall of the handle and is communicated with the cavity; the needle tubing is fixedly arranged in the needle tubing mounting slot; the lead blocking device comprises a button, a connection pipe and a spring; the connection pipe is arranged in the cavity and parallel to the axial direction of the needle tubing; the button runs through the mounting hole and then is connected with the upward side of the connection pipe; one end of the spring is fixed at the bottom of the cavity and the other end of the spring is connected with the lower side of the connection pipe; when the button is compressed, the connection pipe is limited by a locating device arranged in the cavity, at this time, the axis of the connection pipe is coincided with the axis of the needle tubing mounting slot and the lead through slot, in this way, the lead through slot is communicated with the needle tubing; and the connection pipe resets under the action of the spring when the button is released.

The invention relates to a meniscus suture instrument, which belongs to the field of medical instruments and is suitable for meniscus suture operations. The meniscus suture instrument consists of a suture needle (1), a combined file (2), a guide tube (3) and a bolt (4), and is characterized in that a needle body of the suture needle (1) is thin and long, wherein the tail part of the needle is provided with a needle eye; the combined file (2) consists of a file body (5) and a combined file locating plate (6); the file body (5) is rod-shaped; the front end of the file is curved to form an arc shape, and the top end of the file is provided with a file surface; the guide tube (3) consists of a tube (7) and a locating plate (8); and the bolt (4) has two types, namely a column type and a plate type. An operation position is determined, the combined file (2) is used to repair a meniscus, the suture needle (1) is inserted into the operation position, the guide tube (3) with the corresponding specification is selected according to operation requirements and penetrates into the operation position, and the bolt (4) of the corresponding type is selected and is placed according to the operation requirements.

The invention provides a positioner for meniscus sewing and a meniscus sewing device, relates to the technical field of medical instruments, and aims to solve the problem of difficult positioning in the meniscus sewing process in the prior art. The positioner comprises an aiming piece, a positioning sleeve, a sliding block and a locking structure, wherein the aiming piece comprises a handle part,a connecting part and an aiming part; the connecting part is provided with a sliding hole; the sliding hole extends along an arc-shaped track; the aiming part is positioned at the center of the arc-shaped track; the sliding hole penetrates through the handle part in a first direction; the sliding block is slidably assembled in the sliding hole; the positioning sleeve penetrates through the slidingblock; the axis of the positioning sleeve penetrates through the aiming part; the locking structure is used for locking the sliding block on the handle part. The positioner for meniscus suturing is applied to meniscus suturing operation, and is convenient in operation, high in positioning accuracy, high in operation efficiency and good in effect.

The invention discloses a meniscus stitching instrument. The meniscus stitching instrument comprises a handle, a propelling device on the handle, a needle rod, and at least one implant fixing piece atthe head end of the needle rod, wherein the propelling device is used for driving the implant fixing pieces to do propelling motion forwards in the needle rod; the implant fixing pieces are in an X shape; the surfaces of the implant fixing pieces are further provided with a plurality of punctures. According to the meniscus stitching instrument, puncturing and fixing of multiple positions can be achieved one time, the operation efficiency is greatly improved, and the operation time is saved. Besides, due to the design of the X-shaped implant fixing pieces, the fixing strength of the implant fixing pieces is obviously improved, and the safety and the effectiveness of an operation are ensured.

The invention discloses a meniscus stitching hooked needle for a bone surgery. The meniscus stitching hooked needle comprises a fixed frame, a guide pipe, a handle and an internal cavity, wherein a fixing ring is slidably mounted at the periphery of the guide pipe, screw bolts are mounted at the two ends of the fixing ring, the fixed frame is slidably mounted at peripheries of the screw bolts, andnuts are rotatably mounted at peripheries of the screw bolts at outer sides of the fixed frame. The meniscus stitching hooked needle for the bone surgery comprises the fixed frame, the guide pipe, the handle and the internal cavity, wherein the fixing ring is slidably mounted at the periphery of the guide pipe, the screw bolts are mounted at the two ends of the fixing ring, the fixed frame is slidably mounted at the peripheries of the screw bolts, and the nuts are rotatably mounted at the peripheries of the screw bolts at the outer sides of the fixed frame. According to the meniscus stitchinghooked needle for the bone surgery, through arranging a series of structures, a position of penetrating of the hooked needle during the surgery can be limited when the meniscus stitching hooked needle is in use; the meniscus stitching hooked needle has the advantages that the global stability is high, labor is saved, and maintenance is convenient; and use procedures are optimized.

The invention relates to a meniscus suture guider. The meniscus suture guider comprises a guiding device and a positioning rod; a needle hole, a side edge groove and an inserting groove are formed in the guiding device, and the needle hole extends from the first side face of the guiding device to the middle and extends to be communicated with the needle hole; the inserting groove penetrates through the guide device from the top surface to the bottom surface of the guide device; the positioning rod comprises a positioning rod head and a positioning rod part, the positioning rod part can be inserted into the inserting groove in a sliding mode, a fixing screw is arranged on the second side face of the guiding device, the fixing screw is inserted into the inserting groove from the second side face, and therefore when the guiding device is adjusted to a proper position, the positioning rod part is fixed into the inserting groove by screwing down the fixing screw; the positioning rod head comprises a puncture hole and an arc-shaped part, and the puncture hole is formed in one end of the arc-shaped part; the other end of the arc-shaped part is fixedly arranged at the top end of the positioning rod part, and when the positioning rod part is fixed in the inserting groove through the fixing screw, the needle hole corresponds to the puncture hole in position.

The invention discloses a knee arthroscopic meniscal stitching needle. The stitching needle comprises a hollow needle body (1), a pulley (2), a handle (3), a lead inlet hole (4), and a needle tip (5), wherein the needle body (1) comprises a front part, a back part arranged opposite to the front part, and a middle part for connecting the front part with the back part; the front part of the needle body (1) is provided with the needle tip (5) while the back part of the needle body (1) is provided with the handle (3); the front part of the handle (3) is provided with the pulley (2); the back part of the pulley (2) is provided with the lead inlet hole (4); and the lead penetrates from the lead inlet hole (4) and then is drawn out from the needle tip (5) through the pulley (2). The stitching needle is beneficial to fixing the lead in the puncture process, so that the damages to peripheral tissues and the meniscus in the puncture process are reduced.

The invention provides a meniscus stitching instrument and a positioning tube thereof. Wherein the positioning pipe comprises a first straight pipe, an arc-shaped pipe and a second straight pipe, the front end of the first straight pipe is connected with the left end of the arc-shaped pipe, the interior of the first straight pipe is communicated with the interior of the arc-shaped pipe, the second straight pipe is fixedly connected with the first straight pipe, and the extension line direction of the front end of the second straight pipe is aligned with the right end of the arc-shaped pipe; the interior of the second straight pipe is used for allowing the puncture pipe to penetrate through and guiding the puncture pipe, and the right end of the arc-shaped pipe is used for allowing the puncture pipe to be inserted. Due to the fact that the extension line of the front end of the second straight pipe is aligned with the right end of the arc-shaped pipe, the puncture pipe can quickly and effectively penetrate through the second straight pipe under the guidance of the second straight pipe and is connected with the right end of the arc-shaped pipe in an inserted mode, and then a working channel for puncture of a puncture needle is formed in the first straight pipe, the arc-shaped pipe and the positioning pipe. Therefore, the positioning tube can be used for positioning the puncture tube for meniscus suture, and the positioning operation is simple and convenient.

The present invention refers to a meniscus suture device comprising a handle for handling the device which comprises a push button with axial displacement, a cannula extending from the handle and having a free extremity opposite the handle, a movable rod housed and axially displaceable inside the cannula, the movable rod comprising a first extremity which extends inside the handle and a second extremity, opposite the handle, which has an indenture for capturing a suture thread, wherein the first extremity of the rod comprises a driving mechanism connected to the push button of the handle, for activating the axial displacement of the movable rod inside the cannula, and whereby when the axial displacement of the movable rod inside the cannula is activated, the second extremity of the rod extends outside the orifice of the cannula.

The invention discloses a meniscus stitching instrument, and belongs to the technical field of meniscus stitching. The meniscus stitching instrument comprises a handle assembly, a needle tube assembly, and an implant, wherein a driving mechanism is arranged on the handle assembly; the needle tube assembly is mounted on the handle assembly; the needle tube assembly comprises an inner needle and anouter needle which sleeves the inner needle; the inner needle is connected with the driving mechanism so as to enable the inner needle to slide in the outer needle under the driving of the driving mechanism; the implant is placed in the outer needle before implantation; the implant comprises an implant body; the implant body is in a hollow cylinder shape; the middle section of the cylinder wall isprovided with a plurality of strip-shaped deformation strips; and the deformation strips are arranged in the length direction of the implant body. The meniscus stitching instrument further comprisesa stitching thread penetrating into the implant body; and the implant body is configured in a way that after the implant is pushed out of the outer needle by the inner needle, the stitching thread ispulled to enable the plurality of deformation strips to be opened in an umbrella shape so as to be tightly attached to the meniscus. The implant is pushed into the meniscus along with the outer needle; and after the implant is pushed out of the outer needle, the outer needle is pulled out and the stitching thread is pulled tightly to enable the implant body to be opened so as to be tightly attached to the meniscus.