368 results about "Suture needles" patented technology

The utility model discloses a stitching instrument for stitching an endoscope puncture hole. The stitching instrument comprises a handle part and two operating rods which are assembled on the handle part in a rotatable structure, the lower ends of the two operating rods are respectively provided with a convex needle connecting part, and the lower ends of the two operating rods extend out of the guide cylinder of the handle part; in the rotating action of the two operating rods, the needle connecting parts at the lower ends of the two operating rods are folded or unfolded; when the needle connecting parts of the two operating rods are in a folded state, the guide cylinder located at the handle part is in an axial storage coverage range of a trocar channel through which the guide cylinder needs to penetrate during surgical operation; the lower end of each operating rod is provided with a needle mounting base formed in an outward protruding mode, the needle mounting bases are connected with suture needles through detachable structures, and the suture needles are connected to the needle mounting bases in place to form an inflection assembly structure facing the handle part. According to the stitching instrument, the stitching operation is simplified, the stitching safety, flexibility and efficiency are improved, the forming structure of the stitching instrument is simplified, and the practicability is higher.

An Achilles tendon repair device comprises a handle for physician gripping and base having a first set of tendon rods disposed in an arcuate or U-shaped pattern about the base to engage the posterior surface of the tendon and impart a contour, or drape, the tendon in the posterior-anterior plane to increase the surface area for suturing. A second set of suture guide rods extend from the sides of the base and are spaced apart to allow insertion of suture needles along the entire length of the suture guide rods, and at any angle. A suture needle housing guide can be slidingly attached to the suture guide rods and includes sidewalls with predefined suture holes / angles. An adjustable clamping arm can engage the tendon's posterior surface such that the device grasps the tendon on both the anterior and posterior tendon surfaces simultaneously, while increasing posterior-anterior plane surface area to facilitate suturing.

The utility model provides an endoscope clamping type arc-shaped needle puncture device, which is characterized in that a clamping control piece controls a matching space of a locking piece to be tightened, so that the locking piece is fixedly connected with an arc-shaped suture needle; the rotating control piece controls the connecting piece to rotate relative to the mounting frame from the initial position, and the connecting piece drives the arc-shaped suture needle to rotate relative to the shell so that the arc-shaped suture needle can penetrate through the mucosal tissue of the human body. After the connecting piece moves to the final position, reverse operation is carried out to enable the connecting piece to return to the initial position, and the operation is repeated for multiple times so that the arc-shaped suture needle can repeatedly rotate by 360 degrees to suture the mucosal tissue of the human body; due to the fact that the locking piece can be fixed to any position of the arc-shaped suture needle, the arc-shaped suture needle can be driven to rotate by any angle, the precision requirement for matching between the locking piece and the arc-shaped suture needle is lowered, and when the arc-shaped suture needle punctures a hard human mucosa tissue and is blocked or the rotating stroke is not enough, the arc-shaped suture needle can be driven to rotate by any angle. The locking piece can timely adjust the fixed position point so as to provide enough puncture force and rotation stroke for the arc-shaped suture needle.

The invention provides an intelligent decision-making method and system for free flap riser anastomosis based on hemodynamics. According to the method, firstly, the blood flow direction, the flow speed and the blood vessel wall tension parameter of a target blood vessel are collected, and a dynamic correlation model of intravascular fluid mechanics and external tissue deformation is established; a three-dimensional blood flow pressure gradient map is generated based on the model, then, a system automatically screens an anastomosis path meeting a blood flow resistance threshold value and the endothelial cell survival rate requirement, and the optimal anastomosis pose is determined by analyzing the blood vessel wall elasticity matching degree and the turbulence generation probability. Then, guiding the accurate adjustment of the clamping direction of the blood vessel and the suture needle pitch in the operation, ensuring that the pressure of the lumen of the anastomosed blood vessel is kept balanced when the anastomosed blood vessel is axially stretched, meanwhile, effectively inhibiting local vortex, and remarkably improving the long-term smoothness of the anastomosis of the blood vessel. According to the method, mechanical precise matching and blood flow stable control of free flap vascular anastomosis are achieved, and the postoperative risk is remarkably reduced.

The application provides a suturing mechanism and a biological tissue closure device, the suturing mechanism comprising a base, a needle holder, a suturing needle, a first driving assembly and a second driving assembly; the needle holder is rotationally connected with the base, the first driving assembly is connected with the needle holder and can drive the needle holder to rotate relative to the base to an open state or a closed state; the side of the needle holder away from the base has a boss, the inner contour of the boss matches the outer contour of the suturing needle, and is used for providing a motion track for the suturing needle; at least a part of the second driving assembly can abut against the suturing needle and can self-rotate relative to the axial direction of itself, so as to drive the suturing needle to move along the motion track. The application can realize the closure of various sizes of objects to be closed (for example, a blood vessel wound), and can realize multiple needle penetrating actions through one intervention, so that a better closure effect can be achieved.

The invention discloses a pre-bending type suturing surgical robot, and belongs to the technical field of surgical suturing, the robot comprises a suturing needle, the front end of the suturing needle is of an arc-shaped structure, the tail end of the suturing needle is connected with a first sliding table, a clamping module is installed at the end of the suturing needle in a matched mode, and the suturing needle is of a detachable structure composed of a needle rod and a needle tip; the needle rod is connected with the first sliding table, the clamping module comprises a first mechanical arm and a second mechanical arm which are the same in structure, the first mechanical arm and the second mechanical arm are clamped at the front end of the suture needle, and a third sliding table and a second sliding table are installed at the tail end of the first mechanical arm and the tail end of the second mechanical arm respectively for driving to achieve opening and closing. The design of the suture needle of an arc-shaped structure enables the robot to be flexibly operated in a narrow and complex operation environment, the manipulator clamping module is driven by the sliding table to achieve accurate opening and closing, accurate control over the suture action is guaranteed, and the problem that a traditional suture instrument is difficult to operate in a bending space is solved through the pre-bending design.

A composite suture needle configured for passing through a smaller cannula used in minimally invasive surgery includes a curved elongated body made of stainless steel. The curved elongated body has a proximal end and a distal end with a pointed tip. The composite suture needle includes a sheath covering the curved elongated body. The sheath is curved so as to conform to the shape of the curved elongated body. The sheath is made of a more flexible material than the curved elongated body. The pointed tip of the curved elongated body extends distally beyond a distal end of the sheath. The curved elongated body is made of stainless steel and the sheath is made of a more flexible material such as nitinol than the elongated body.

The invention discloses synchronous machining equipment for insections of needle forceps, which belongs to the technical field of needle forceps machining and comprises a machining table for synchronously machining two forceps handles, two groups of assembly frames are arranged on the machining table, and four mounting seats are mounted on the assembly frames. Through the arrangement of the tooth adjusting assembly, the cooperation of the adjusting rack, the adjusting gear and the assembling frame can be used for forcing the double clamp handles to move and deflect completely synchronously, the insection phase difference caused by traditional split machining is eliminated, and tooth dislocation after assembly and clamping needle slipping in the clinical use process are avoided; wet friction testing can be carried out in the state that the two forceps handles are assembled, puncture resistance similar to dermis is provided by simulating a tissue membrane, whether clamping force for machining insections is qualified or not is judged according to whether a drop point is deviated or not after puncture of a suture needle, and whether the lateral slippage risk of the suture needle is high or not is judged according to whether an elastic membrane is deformed or not, so that detection is more comprehensive.

The invention discloses an abdominal cavity suture needle assembly and a suture method thereof.The suture needle assembly comprises a suture needle (10), the suture needle (10) comprises a needle head (11) and a needle body (12) connected with the needle head (11), a penetrating hole (123) is formed in the end, away from the needle head (11), of the needle body (12), an expansion body (13) is further arranged on the needle body (12), and when the suture needle (10) punctures an abdominal cavity tissue (200), the expansion body (13) expands the penetrating hole (123); the expansion body (13) can be switched between a contraction position where the expansion body (13) is contacted with a tissue piercing port to contract and an expansion position where the expansion body (13) is arranged in the tissue to expand; the sewing thread (20) is matched with the penetrating hole (123); wherein the sewing needles (10) are sequentially arranged at intervals along the two sides or the circumferential edge of the abdominal cavity notch (210), and the sewing threads (20) sequentially penetrate through the sewing needles (10) located on the two sides or the circumferential edge of the abdominal cavity notch (210).

The utility model relates to a temporal muscle suturing and fixing device for neurosurgery, which is characterized in that at least one suturing line is connected onto a screw, and the other end of each suturing line is connected with a suturing needle. The device has the beneficial effects that the screw is directly fixed on the skull; the needle holder is provided with a suture needle to suture temporalis, and the suture needle is removed; the thread on one side of the screw and the thread on the other side of the temporalis can be knotted, fixation after the temporalis is cut open in a neurosurgery operation can be effectively completed, poor fixation of the temporalis is avoided, temporalis atrophy of a patient after an operation is avoided, psychological stress brought to the patient due to unattractive appearance caused by amyotrophy on one side after the operation is avoided, the design is simple and practical, and practicability is high. The device can be popularized to be used in various intracranial operations.

The invention provides a visual assistance method for a suture needle body, electronic equipment and a storage medium, and is applied to the technical field of image processing. The method comprises the following steps: acquiring depth information of a suture needle body action area in a current frame image, and acquiring a binary mask of a suture needle body in the current frame image; constructing a complete suture needle body three-dimensional track based on needle body geometric prior constraints and binary masks, and obtaining a complemented three-dimensional tubular needle body model; for a second pixel point on the three-dimensional tubular needle body model, according to the three-dimensional depth of the second pixel point under the camera coordinate system and the three-dimensional depth of the first pixel point corresponding to the second pixel point, determining a position shielding relationship between the second pixel point and the action area of the suture needle body; based on the position shielding relation and the three-dimensional tubular needle body model, providing visual assistance corresponding to the suture needle body. The visual auxiliary device is used for improving the visual auxiliary effect facing the suture needle body, and then the precision and reliability of surgical operation are improved.

The application provides a suture device, a treatment device with the suture device and a treatment equipment. The suture device comprises a main housing, a suture needle, a needle feeding assembly and a needle preventing assembly. The suture needle is slidably arranged in the main housing. One end of the suture needle is connected with a suture thread, and the other end of the suture needle is a pointed end. The needle feeding assembly is arranged in the main housing and comprises a driving member, a reset member and a needle feeding tooth. The needle feeding tooth is in a separable engagement with the suture needle. The driving member acts on the needle feeding tooth and the suture needle in the engagement state, controls the suture needle to advance and causes the reset member to deform. When the driving member is released, the engagement between the needle feeding tooth and the suture needle is released, and the reset member drives the needle feeding tooth to reset. Alternatively, the driving member acts on the needle feeding tooth relative to the suture needle in the engagement release state and causes the reset member to deform. When the driving member is released, the needle feeding tooth is engaged with the suture needle, and the reset member drives the needle feeding tooth and the suture needle to advance. The needle preventing assembly is arranged in the main housing and prevents the suture needle from retreating.

A laparoscopic suturing device is provided. The suturing device can pass a suturing needle back and forth between jaws of a jaw assembly to suture tissue at a surgical site in a minimally invasive procedure. The jaw assembly can have a pivotable jaw member in each jaw to position the jaw assembly and needle in a low-profile stowed configuration for insertion through a low diameter surgical port. The jaw assembly can be actuated by a handle assembly that provides simultaneous needle passing from a driving jaw to a receiving jaw and latching the needle within the receiving jaw in a single trigger cycle.20 24 22 73 26 15 O ct 2 02 4 A B S T R A C T O F T H E D I S C L O S U R E 2 0 2 4 2 2 7 3 2 6 1 5 O c t 2 0 2 4

The temporomandibular joint disc suture needle with the holding structure comprises a needle tube main body, and the two ends of the needle tube main body are a puncture end and a propelling end respectively. The holding mechanism is used for forming a transverse holding type holding structure, the propelling mechanism is used for suturing the joint disc, the puncturing mechanism is used for puncturing and anchoring the joint disc, the holding mechanism is arranged on the side portion of the needle tube body, and the propelling mechanism is assembled at the propelling end of the needle tube body. The needle tube has the advantages that the holding mechanism is arranged, the holding mechanism and the needle tube body jointly form a T-shaped transverse holding type holding structure, an operator can hold the needle tube conveniently, the situation that the operator exerts force difficultly during suturing is avoided, and it is guaranteed that fine suturing operation is carried out smoothly; the propelling mechanism is arranged to be matched with the puncture mechanism, the anchoring part can be stably pushed to the designated position of the temporomandibular joint disc, anchoring of the suture line can be achieved through one-time pushing, and operation is easy.

The invention discloses an abdominal cavity puncture stitching instrument, and belongs to the technical field of abdominal cavity puncture stitching equipment, the abdominal cavity puncture stitching instrument comprises a puncture needle head, a needle cylinder, a liquid taking tube, a stitching angle adjusting device, a stitching needle telescopic structure and a liquid extraction structure locking device, the puncture needle head is inserted into an abdominal cavity, the needle cylinder is connected with the puncture needle head in a clamping manner, and the liquid taking tube is fixedly mounted in the needle cylinder; the liquid extraction structure locking device is connected with the puncture needle head in a clamped mode, the liquid extraction structure locking device slides in the needle cylinder in a clamped mode, the suture angle adjusting device is clamped and hidden on the side wall of the needle cylinder, and the suture needle telescopic structure is installed in the suture angle adjusting device in a clamped mode. In order to solve the problems that the operation is still complicated and the suturing angle is relatively fixed when a current puncture mode and a current seroperitoneum drawing mode are switched, the invention provides the abdominal cavity puncture suturing instrument, the problems that the suturing angle cannot be adjusted and the puncture mode and the seroperitoneum drawing mode are inconvenient to switch are effectively solved, and the operation flexibility and the integration level of the whole equipment are improved.

A suturing catheter for reducing mitral insufficiency by applying suturing points percutaneously is provided. The suturing catheter has a catheter body provided with a distal end and at least one internal lumen, at least one U-folded suture filament with two free ends, each provided with a suture needle, a pair of stylets, each provided with a catch needle, the suture and catch needles being provided with a connecting portion that allows a catch needle to mechanically engage with a suture needle, and a lever having a stapling arm, from which the suture needles protrude. The stapling arm, together with the catheter body, from which the catch needles protrude, defines a catch zone for a flap of a mitral valve. An opposite operating arm, together with the catheter body, defines an operating zone of the lever.

A kind of suturing mechanism and surgical robot, the suturing mechanism includes rotatable suture assembly, thread adjusting assembly and suture needle, rotatable suture assembly is controlled to rotate, rotatable suture assembly includes first needle slot, drive slot, drive unit and first drive rope;First needle slot is configured to accommodate suture needle, drive slot is correspondingly arranged with first needle slot, drive unit is slidably arranged in drive slot, configured to drive suture needle, first drive rope is connected with drive unit, and along drive slot is arranged, configured to control drive unit to slide in drive slot, thread adjusting assembly is connected with the first drive rope, configured to: in the case where rotatable suture assembly is controlled to rotate, first drive rope is in tension state.This suturing mechanism can realize more stable, accurate drive operation.

The utility model discloses a pediatric surgery suture needle management auxiliary device which comprises a box body, a plurality of containing grooves are vertically formed in the top of the box body, a push-out assembly is arranged in each containing groove, a limiting assembly is arranged on a lifting body, and the pediatric surgery suture needle management auxiliary device is provided with a rectangular hole, a round rod, a rubber ball body and a needle inserting hole. When the operation suture needles in the needle inserting holes in the lifting body need to be taken, the rubber ball body is pushed to drive the round rod to move upwards, the round rod drives the lifting body to move upwards in the containing groove, at the moment, the operation suture needles inserted into the lifting body are in a row, and at the moment, the operation suture needles can be conveniently and rapidly taken out of the needle inserting holes; and the situation that the surgical suture needles are gathered together and cannot be quickly taken is prevented.

The invention discloses a continuous suturing rotator cuff stitching instrument which comprises a supporting tube and is characterized in that a stitching tube is arranged on one side of the supporting tube, a right needle clamping seat and a left needle clamping seat are arranged on the two sides of the end of the stitching tube respectively, a connecting seat is arranged on one side of the supporting tube, and an adjusting seat is arranged on one side of the connecting seat. A sewing operation mechanism is arranged in the adjusting seat; one side of the right needle clamping seat and one side of the left needle clamping seat are provided with a right needle clamping hole and a left needle clamping hole respectively, and the right needle clamping seat and the left needle clamping seat are further internally provided with needle body fixing and adjusting mechanisms used for controlling suture needle bodies to be alternately fixed and completing continuous suture. Alternate and continuous suturing of tissue can be achieved, suturing efficiency in an operation is greatly improved, operation difficulty is reduced, uniform suturing force can be applied to the right needle clamping base and the left needle clamping base, puncture efficiency of the suturing needle is improved, and meanwhile suturing precision is improved.

A double-needle bidirectional barb surgical suture with a buckle ring in the middle comprises a single suture, suture needles are arranged at two ends of the suture, barb suture bodies on two sides of the suture are respectively provided with barbs with barbs pointing to the middle, the buckle ring is arranged in the middle of the barb suture bodies, and the barb suture bodies are made of absorbable materials. After the sutured first needle is used for suturing the tissue, the suture needle on one side penetrates into the buckling ring and then is tensioned, so that the first needle is used for suturing the tissue and is locked, and tissue damage caused by excessive traction of the barb line on the other side of the buckling ring towards the barb opening direction in the traction process when the suture needles on the two sides are continuously used for suturing the tissue subsequently can be avoided; by means of the device, the suture line can be conveniently pulled to twist the intestinal canal in the surgical anastomosis operation process of the gastrointestinal tract, so that an operation operator can conveniently suture the lateral and dorsal intestinal walls, and the gastrointestinal tract operation, especially the gastrointestinal tract anastomosis under a laparoscope, can be facilitated.

The utility model discloses an automatic sewing device which comprises a device body, a base and a top arm, the base and the top arm are respectively connected with the device body, and the top arm is arranged on the base in an opposite mode. The top arm comprises an arm main body, a suture needle for penetrating a suture line and puncturing the skin and a threading ring for stabilizing the suture line and pulling the suture line, the suture needle can be clamped in a sliding mode relative to the arm main body, the suture needle is arranged at the front end of the arm main body, and the threading ring is arranged on the side face of the arm main body; a shuttle rotating around the center is arranged on the base and used for being matched with the suture needle head to form a suture on the skin of a patient when the suture needle head punctures the skin of the patient; the device body is provided with a winding ring used for winding a suture line and a driving part used for controlling starting and stopping of the suture needle and the shuttle, the driving part is arranged in the base, and the driving part is provided with a starting and stopping switch used for controlling starting and stopping. The utility model provides a quick and convenient operation tool for suturing and fixing work after clinical catheterization, the risk is reduced, and the manpower is saved.

The utility model provides a portable needlework box, and belongs to the technical field of medical instruments. The portable sewing box comprises a supporting assembly and a box body. The supporting assembly comprises a bottom plate, a supporting frame and knob bolts, the supporting frame is fixedly connected to the upper surface of the bottom plate, the multiple knob bolts are arranged, in the using process, a medical worker can carry the supporting frame and the multiple box bodies together, when the box bodies need to be used, the knob bolts can be detached, and therefore the medical worker can conveniently carry the box bodies. The box bodies can be moved forwards or backwards, then the suture line bags and the suture needle bags can be stored and taken, the two box bodies move in different directions, the two box bodies can be staggered, two persons can conveniently store and take the suture line bags and the suture needle bags at the same time, the multiple box bodies can store a large number of suture line bags and suture needle bags at the same time, and the box bodies are convenient to use. And a plurality of box bodies can be carried together, so that the portability is higher, and the practicability is higher.

A system for performing any of extracorporeal or intracorporeal wound closure, includes a suture cartridge 100 configured to be detachably coupled to a distal end of a handle of the system extracorporeal wound closure, or to a shaft assembly that is coupled to distal end of the handle for intracorporeal wound closure. On being coupled to any of the shaft assembly or the handle, a driving pulley 112A of the cartridge 100 gets operatively coupled to a driving mechanism in the handle to drive a belt 110 of the suture cartridge 100 to drive a suturing needle 106 for suturing tissues for the extracorporeal or intracorporeal wound closure. The cartridge 100 can be coupled with any of a robotic system, a hand held system and a minimal invasive surgical system.

This invention discloses a suture device, comprising a main shaft and several suture components. Each suture component includes a suture thread with suture needles at both ends. The main shaft has suture limiting members connected to both ends, each capable of sliding along the main shaft. The ends of two suture limiting members that are far apart from each other extend beyond the main shaft. Several guide channels for accommodating suture needles are arranged around the outer periphery of each suture limiting member. When the tip of the suture needle is engaged with a suture limiting member below a guide channel, the suture limiting member is restricted from moving. When the suture needle is pulled away from the outer end of the corresponding suture limiting member, the needle tip slides out of the suture limiting member. When the suture needle is pushed towards the outer end of the corresponding suture limiting member, the needle tip is pushed to the outlet of the guide channel. This invention has a simple structure and is more convenient for suturing tubular tissues.

The application provides a medical MCL femoral insertion avulsion repair instrument and method based on mesh suture and bone cement wrapping, and belongs to the technical field of femoral insertion avulsion repair instruments. The instrument comprises a first limiting framework, one side of the first limiting framework is provided with a second limiting framework, and the two sides of the first limiting framework and the second limiting framework are provided with a binding body; an auxiliary limiting mechanism is used for strengthening the stability of the device structure and assisting in suture surgery, and the auxiliary limiting mechanism is connected with the second limiting framework. The auxiliary limiting mechanism can effectively avoid the increase of instrument loss and suture needle fracture risk, effectively improve the working efficiency of suture, and the cooperation of the first limiting framework, the second limiting framework and the binding body can also well limit the legs of the patient during the operation, and can also protect the legs of the patient after the operation.

The utility model relates to the technical field of medical instruments, and discloses a clamping device which is used for clamping a suture needle, the clamping device comprises a clamping body, a magnetic unit, a power supply unit and a control unit, the power supply unit is arranged in the clamping body, so that a wire connected with an external power supply in related technologies does not need to be arranged outside the clamping device, and the clamping device is convenient to use. The situation that the wound of a patient is worsened to be inflamed due to the fact that the wire makes contact with the patient is avoided, and therefore the technical effects that the safety of the clamping device in the using process is improved, and meanwhile the structural conciseness of the clamping device can be improved are achieved.

1. Name of the designed product: packing box (for suture needle turnover). 2. Use of the designed product: for loading suture needles in the processing process. 3. Design points of the designed product: in the combination of shape and pattern. 4. Picture or photo best indicating the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model provides a forceps head assembly of a laparoscope needle holder and the laparoscope needle holder, and belongs to the technical field of medical instruments. In the forceps head assembly of the laparoscope needle holder, a meshing disc is rotationally arranged on a first forceps body, first meshing teeth are evenly distributed on the peripheral wall of the meshing disc, a boss is fixedly arranged on the meshing disc, a needle containing groove is formed in the boss, a second forceps head comprises a second forceps body, the second forceps body is provided with a containing groove, a meshing groove and an avoiding groove, and the containing groove can contain the boss. The receding groove penetrates through the second clamp body in the width direction of the second clamp body, the receding groove and the containing groove are communicated in the thickness direction of the second clamp body, the meshing groove and the receding groove are communicated in the length direction of the second clamp body, second meshing teeth are evenly distributed on the inner side wall of the meshing groove, the second meshing teeth can be meshed with the first meshing teeth, and the connecting piece is connected with the second clamp body. The connecting piece can drive the second plier body to be close to or away from the first plier body. The angle of the suture needle can be adjusted, meanwhile, the stability of the suture needle is guaranteed, and the suture needle is not prone to falling off.

The invention belongs to the technical field of medical treatment, and particularly relates to a perineum laceration auxiliary stitching instrument with a prompting effect, the perineum laceration auxiliary stitching instrument comprises a digital metal detector main body and a detection coil, the outer wall of the detection coil is fixedly sleeved with a reinforcing cover, and the bottom end of the digital metal detector main body is fixedly connected with a supporting plate; the outer wall of the supporting plate is fixedly connected with a shell, the upper surface of the shell is fixedly connected with a knob switch used for adjusting the measurement range of the digital metal detector body, and the upper surface of the shell is fixedly connected with an alarm. The perineal laceration auxiliary stitching instrument has the functions of rectum position lighting and reminding before rectum penetration, the suture needle can be effectively prevented from penetrating the rectum of a puerpera in time through the reminding capacity, meanwhile, the sensitivity and effect of reminding that the rectum of the puerpera is penetrated can be effectively improved, and then rectum injury of the puerpera is avoided; the perineum laceration auxiliary stitching instrument can ensure the safety of perineum laceration stitching of a puerpera and improve the use reliability of the perineum laceration auxiliary stitching instrument.

The utility model relates to the technical field of medical needle body processing and manufacturing, in particular to an ultra-long radian-free suture needle electrolysis clamping tool which is reasonable in structure, easy and convenient to operate, capable of adapting to different lengths of needle bodies and capable of improving product quality. The double-side clamping assembly comprises L-shaped clamping arms symmetrically arranged on the two sides of the lower portion of the supporting cross beam, the L-shaped clamping arms are placed in an inverted mode, the horizontal sections of the L-shaped clamping arms are connected with the supporting cross beam through locking nuts, and nut locking groove holes corresponding to the horizontal sections of the L-shaped clamping arms are formed in the left side and the right side of the supporting cross beam correspondingly. The nut locking groove hole is a strip-shaped groove hole.