A suturing tool

Abstract

The embodiment of the present application discloses a kind of stitching tools, comprising: left scissors, right scissors, pivot, left clamping portion, right clamping portion, left lead and right lead.Hand left scissors and the bottom of right scissors are rotated by pivot, to drive first locking mechanism and second locking mechanism respectively to opposite direction rotation, respectively realized the mutual adhesion or away of first clamping piece, the mutual away or adhesion of second clamping piece, and the movement state of a pair of first clamping piece and a pair of second clamping piece is opposite, to needle is clamped and loosened.By this tool, the effect of needle fixing and moving is realized, and the action of taking needle and putting needle is realized.Suture needle is shuttled between tissue and organ by stitching tool, reduce the work burden and the problem of operation complexity, improve the work efficiency of doctor.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the field of medical instruments, in particular to a suturing tool. BACKGROUND

[0002] Suturing is to suture or reconstruct the passage of the tissue, organ which has been incised or broken, and to restore its function, which is the basic condition to ensure good healing and one of the basic operations in surgery. Different tissues and organs in different parts are sutured in different ways. The existing suturing tool is needle holder, which is mainly used to hold the suture needle to suture various tissues, and is also used for instrument knotting. The tip of the needle holder is suitable for holding the middle and rear 1 / 3 junction of the suture needle, and in most cases the needle tip should be to the left, and in special cases to the right, the suture line should overlap 1 / 3, and the overlapping part of the winding line is also put into the needle nozzle, which is beneficial to the operation.

[0003] After the operation of human body parts, suturing operation is basically needed, and for the surface skin tissue, the suture needle is relatively simple, but for the heart, meninges and other positions, it is difficult to suture, among which the nasal septum is a position which is inconvenient for suture operation. The nasal septum is located between the left and right nasal cavities, which is composed of perpendicular plate of ethmoid bone, vomer and nasal septal cartilage, and is covered with mucosa. In the prior art, nasal septum suturing can be performed after septoplasty to reduce nasal cavity packing, and nasal septum perforation or damage during operation needs to be repaired, which often needs to perform septal suture.

[0004] During suturing, the needle holder is held by hand to suture from the left nasal septum to the right nasal cavity, and then from the right nasal septum to the left nasal cavity, continuous through suture, and when sutured to the incision, sutured from the right nasal cavity to the back of the left nasal cavity, then closed the incision, tied the knot and fixed. However, due to the narrowness of the nasal cavity, the field of view is limited during threading, the operation space is limited, it is not easy to apply force, and the threading process is abnormal troublesome, and the force is not easy to control during threading, the suture operation force is too small to pass the suture line through the nasal septum, resulting in threading failure. Therefore, it is a problem to be solved to control the needle holder by hand force and reasonably control the suture force. SUMMARY

[0005] The purpose of the present application is to provide a nasal septum suturing device, which controls the fixed length of the pull wire by the scissors part to drive the needle holder to hold the needle, so as to realize the clamping and taking out of the needle on one side and the taking out and clamping of the suture needle on the other side during suturing, which facilitates the left and right movement of the suture needle in the human organ tissue. The suture difficulty after the operation of the human organ is reduced, the suture force is easy to control, the working efficiency is improved, and the operation is simple.

[0006] The embodiment of the present application provides a suturing tool, which comprises a left scissors, a right scissors, a pivot, a left clamping part, a right clamping part, a left lead wire and a right lead wire.

[0007] The left scissors and the right scissors are hinged through the pivot.

[0008] The left clamping part is located at the front end of the left scissors, and the right clamping part is located at the front end of the right scissors.

[0009] The left clamping part comprises a pair of first pincers, a pair of first clamping pieces and a first locking mechanism.

[0010] One end of the first pincers is fixed with the left scissors, and the other end is fixed with the first clamping piece.

[0011] The first locking mechanism is located at the middle part of the first pincers, and the first locking mechanism is used for adjusting the opening angle of the first pincers.

[0012] One end of the left lead wire is fixed with the first locking mechanism, and the other end is fixed with the right scissors, the right scissors drives the left lead wire to control the tension of the first locking mechanism.

[0013] The right clamping part comprises a pair of second pincers, a pair of second clamping pieces and a second locking mechanism.

[0014] One end of the second pincers is fixed with the right scissors, and the other end is fixed with the second clamping piece.

[0015] The second locking mechanism is located at the middle part of the second pincers, and the second locking mechanism is used for adjusting the opening angle of the second pincers.

[0016] One end of the right lead wire is fixed with the second locking mechanism, and the other end is fixed with the left scissors, the left scissors drives the right lead wire to control the tension of the second locking mechanism.

[0017] The moving paths of the first clamping piece and the second clamping piece are perpendicular to the moving paths of the left scissors and the right scissors respectively.

[0018] The left scissors and the right scissors are fixed by the rotating shaft, and similar to scissors, the left and right lead wires are fixed at one end of the right and left scissors respectively, and the other end is fixed with the first locking mechanism and the second locking mechanism respectively. The length of the left and right lead wires is fixed, the left lead wire and the right lead wire are driven to move by the left and right scissors, so as to drive the first locking mechanism and the second locking mechanism to rotate, and the rotating directions of the first locking mechanism and the second locking mechanism are opposite, so that when a pair of first clamping pieces are tightened, a pair of second clamping pieces are loosened, and vice versa. The rotating shaft is controlled by the hand force, so as to drive the locking mechanism to make the clamping pieces produce displacement change, and finally the clamping needle is loosened and clamped. By using the device, the suture force and the suture position can be better controlled, the suture time is saved, the work efficiency is improved, and the work of doctors is facilitated.

[0019] In a feasible scheme, the first locking mechanism of the suturing tool comprises a first screw rod, a first screw nut and a first elastic piece;

[0020] One end of the first screw rod is fixed on the first forceps arm, and the other end is fixed with the first screw nut through the first forceps arm;

[0021] One end of the left lead wire is fixed on the right scissors, and the other end of the left lead wire is fixed at the outer edge of the first screw nut;

[0022] One end of the first elastic piece is fixed on the first forceps arm where the first screw nut is located, and the other end of the first elastic piece is fixed on the first screw nut. The fixed position of the left lead wire on the first screw nut and the fixed position of the first elastic piece are symmetrical about the first screw nut;

[0023] The second locking mechanism comprises a second screw rod, a second screw nut and a second elastic piece;

[0024] One end of the second screw rod is fixed on the second forceps arm, and the other end is fixed with the second screw nut through the second forceps arm;

[0025] One end of the right lead wire is fixed on the left scissors, and the other end of the right lead wire is fixed at the outer edge of the second screw nut;

[0026] One end of the second elastic piece is fixed on the second forceps arm where the second screw nut is located, and the other end of the second elastic piece is fixed on the second screw nut. The fixed position of the right lead wire on the second screw nut and the fixed position of the second elastic piece are symmetrical about the second screw nut;

[0027] The rotating direction of the thread on the first screw rod is opposite to the rotating direction of the thread on the second screw rod;

[0028] When the left scissors and the right scissors rotate, the first nut and the second nut are driven to rotate in opposite directions, so as to drive the first arm to tighten or loosen, and simultaneously drive the second arm to loosen or tighten, and the first elastic member and the second elastic member are in a stretched state during the rotation of the first nut and the second nut.

[0029] The locking mechanism utilizes the displacement change of the nut on the screw rod to generate extrusion or separation of the clamping pieces, so as to realize the operation of fixing or loosening the needle, facilitate the position change of the needle in the nasal septum, and facilitate the picking of the needle.

[0030] In a feasible scheme, the first arm of the suturing tool is provided with a first through hole at the end of the active connection with the first screw rod, and the diameter of the first through hole is greater than the diameter of the first screw rod.

[0031] The second arm is provided with a second through hole at the end of the active connection with the second screw rod, and the diameter of the second through hole is greater than the diameter of the second screw rod.

[0032] A pair of arms are oppositely arranged, one end of the screw rod is fixed on one arm, and the other end is arranged in the other arm, and a through hole with a diameter greater than that of the screw rod is arranged on the active connection arm. Since the screw rod is active connected to one of the arms, and the arm generates an arc-shaped movement path during rotation, the screw rod can run in the larger through hole to prevent the screw rod from extruding the arm due to the too small through hole, thereby prolonging the service life of the arm.

[0033] In a feasible scheme, the first clamping piece and the second clamping piece of the suturing tool are made of magnetic material.

[0034] The clamping piece made of magnetic material can generate adsorption effect on the needle during suturing, so as to prevent the needle from falling during suturing.

[0035] In a feasible scheme, the pair of clamping pieces of the suturing tool includes a front clamping piece and a rear clamping piece.

[0036] The front clamping piece and the rear clamping piece are both provided with semicircular clamping holes, the opening directions of the clamping holes are oppositely arranged, and when the front clamping piece and the rear clamping piece are abutted, the two clamping holes form a circular closed shape.

[0037] The clamping holes on the pair of clamping pieces form a circular closed shape when abutted, and the diameter of the formed circle is just equal to the size of the surgical needle, so that the needle is clamped in the clamping hole, the position of the needle is fixed, and the clamping is facilitated.

[0038] In a feasible scheme, the clamping hole of the suturing tool is further provided with a non-slip pad.

[0039] The clamping hole is used to fix the needle, but long-term use can cause wear between the clamping hole and the needle, and the anti-skid pad can increase the fixing effect of the clamping hole on the needle and prevent the needle from wearing the clamping hole.

[0040] In a possible solution, the suturing tool further comprises a finger ring.

[0041] The finger ring is located at the bottom end of the left scissors and the right scissors, respectively.

[0042] The bottom of the left scissors and the right scissors is the hand-holding position, and the finger ring can be set to put the hand into the finger ring, so that the hand can hold the left scissors and the right scissors, thereby reducing the trouble of the doctor during the operation and improving the work efficiency.

[0043] In a possible solution, the suturing tool further comprises a third elastic member and a fourth elastic member.

[0044] The third elastic member is located between a pair of the first tweezer arms, and when the first tweezer arms are opened, the third elastic member is in a stretched state.

[0045] The fourth elastic member is located between a pair of the second tweezer arms, and when the second tweezer arms are opened, the fourth elastic member is in a stretched state.

[0046] Each pair of tweezer arms has a certain opening angle, and although the distance between the tweezer arms is controlled by the screw rod and the screw cap, loosening may occur during the rotation of the screw cap. Therefore, an elastic member is added between each pair of tweezer arms, and when the tweezer arms are opened, the elastic member is in a stretched state. The stretched elastic member has a back elastic force on the tweezer arms, so that even if the screw cap is loosened, the distance between each pair of tweezer arms will not be affected, and the loosening is prevented.

[0047] In a possible solution, the suturing tool further comprises two caps.

[0048] The caps are respectively sleeved at the ends of the first screw rod and the second screw rod, and the caps are used to abut against the first screw cap and the second screw cap.

[0049] One end of the screw rod is fixed on one of the tweezer arms, and the other end is movably arranged in the other tweezer arm. The cap is arranged at the end of the screw rod to fix the screw nut between the screw rods, so that the screw nut will not slide out of the screw rod after loosening. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without any creative work based on the embodiments of the present application shall fall within the protection scope of the present application.

[0051] Figure 1 A perspective view of the suturing tool in the embodiment of the present application;

[0052] Figure 2 A schematic view of the clamping state of the suturing needle in the embodiment of the present application;

[0053] Figure 3 A schematic view of the distraction state of the suturing needle in the embodiment of the present application;

[0054] Figure 4 A schematic view of the detailed structure of the right clamping part in the embodiment of the present application;

[0055] Figure 5 A working state diagram of the first elastic member and the second elastic member when clamping the needle in the embodiment of the present application.

[0056] Reference numerals in the drawings:

[0057] 1, left scissors; 2, right scissors; 3, rotating shaft; 4, first forceps arm; 41, first clamping piece; 42, first screw cap; 43, first elastic member; 44, third elastic member; 5, second forceps arm; 51, second clamping piece; 52, second screw rod; 53, second screw cap; 54, second elastic member; 55, clamping hole; 56, fourth elastic member; 6, left lead wire; 7, right lead wire; 8, non-slip pad; 9, finger ring; 10, cap. DETAILED DESCRIPTION

[0058] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without any creative work based on the embodiments of the present application shall fall within the protection scope of the present application.

[0059] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0060] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, can also be integrated; can be mechanical connection, can also be electrical connection, can also be communication connection; can be direct connection, can also be indirect connection through intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The technical solutions of the present application are described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described in detail in some examples.

[0061] After the operation of the human body part, the operation of suture is basically needed, and for the surface skin tissue, the suture needle is relatively simple, but for the heart, the meninges and other positions, it is difficult to suture, and the nasal septum is a position which is inconvenient to suture. In order to reduce nasal cavity tamponade after septoplasty, nasal septum suture can be performed, in addition, nasal septum perforation or damage during operation needs to be repaired, and septum suture is often needed.

[0062] The present inventors find that in the prior art, the suture process is abnormal troublesome in the threading process due to the limited field of view caused by the narrow nasal cavity, and the limited space in the nasal septum makes it difficult to clamp and take out the needle, and it is not easy to use the needle holder to drive the needle to move left and right in the nasal septum. The suture thread cannot be threaded through the nasal septum, resulting in threading failure, and the suture force is too large, which may damage the nasal mucosa. When the needle is taken out at one end of the needle holder, the other end cannot be clamped in time, prolonging the operation time.

[0063] As Figure 1The suture tool in the application includes: left scissors 1, right scissors 2, pivot 3, left clamping part, right clamping part, left lead wire 6 and right lead wire 7. The left scissors 1 and the right scissors 2 are hinged through the pivot 3, and the principle is similar to that of scissors. The bottom of the left scissors 1 and the right scissors 2 is pushed to drive the upper part of the left scissors 1 and the right scissors 2 to move through the pivot 3. The left clamping part is arranged on the upper part of the left scissors 1, and the right clamping part is arranged on the upper part of the right scissors 2. The left clamping part includes: a pair of first tweezers arms 4, a pair of first clamping pieces 41 and a first locking mechanism. The bottom of the first tweezers arm 4 is fixed on the left scissors 1, the upper part is opened in an opening shape, and a first clamping piece 41 is arranged on each first tweezers arm 4. The first locking mechanism is arranged in the middle of the first tweezers arm 4, and the opening angle of the first tweezers arm 4 is adjusted through the first locking mechanism. One end of the left lead wire 6 is fixed on the right scissors 2, and the other end is fixed on the first locking mechanism. The length of the left lead wire 6 is constant.

[0064] As Figure 4 The right clamping part includes: a pair of second tweezers arms 5, a pair of second clamping pieces 51 and a second locking mechanism. The bottom of the second tweezers arm 5 is fixed on the right scissors 2, the upper part is opened in an opening shape, and a second clamping piece 51 is arranged on each second tweezers arm 5. The second locking mechanism is arranged in the middle of the second tweezers arm 5, and the opening angle of the second tweezers arm 5 is adjusted through the second locking mechanism. One end of the right lead wire 7 is fixed on the left scissors 1, and the other end is fixed on the second locking mechanism. The length of the right lead wire 7 is constant.

[0065] The bottom of the left scissors 1 and the right scissors 2 is held to drive the bottom of the left scissors 1 and the right scissors 2 to move. Since the left lead wire 6 and the right lead wire 7 are respectively fixed on the right scissors 2 and the left scissors 1, with the displacement change between the left scissors 1 and the right scissors 2, the positions of the left lead wire 6 and the right lead wire 7 on the right scissors 2 and the left scissors 1 also relatively change. The other end of the left lead wire 6 is fixed on the first locking mechanism, and the other end of the right lead wire 7 is fixed on the second locking mechanism. If the right scissors 2 pulls the first locking mechanism through the left lead wire 6, the right lead wire 7 pulls the second locking mechanism to loosen, and the movement directions of the first locking mechanism and the second locking mechanism under the pulling of the left lead wire 6 and the right lead wire 7 are opposite, so the effect is also opposite. The surgical needle is placed on the pair of first clamping pieces 41 and the pair of second clamping pieces 51, so when the first clamping piece 41 is tightened, the needle is fixed, and the second clamping piece 51 is loosened, the position of the needle is changed, and the needle is moved in the nasal septum to perform the needle suture operation. The pair of first tweezers arms 4 and the pair of second tweezers arms 5 are oppositely arranged to realize the clamping and fixing of the needle. When each pair of tweezers arms moves, the moving path is perpendicular to the moving path of the left scissors 1 and the right scissors 2, and the moving direction of the needle between each pair of clamping pieces is the same as the moving direction of the left scissors 1 and the right scissors 2.

[0066] The suture tool is especially suitable for the case of small operation space and high requirement for suture tool, such as nasal septum. In the suture tool, the left scissors 1 and the right scissors 2 are hinged through the rotating shaft 3, a pair of first pincers 4 is arranged at the upper end of the left scissors 1, the upper end of the first pincers 4 is provided with a pair of first clamping pieces 41, a pair of second pincers 5 is arranged at the upper end of the right scissors 2, the upper end of the second pincers 5 is provided with a pair of second clamping pieces 51, and the surgical needle is fixed on the first clamping pieces 41 and the second clamping pieces 51. One end of the left lead wire 6 is welded on the right scissors 2, and the other end is fixed on the first locking mechanism, one end of the right lead wire 7 is welded on the left scissors 1, and the other end is fixed on the second locking mechanism. The bottom of the left scissors 1 and the right scissors 2 is held to drive the left scissors 1 and the right scissors 2 to change the displacement, so as to drive the first locking mechanism and the second locking mechanism to rotate in opposite directions, respectively, to realize the tightening or loosening of the first pincers 4 and the loosening or tightness of the second pincers 5, and the movement state of the first pincers 4 and the second pincers 5 is opposite. When the left scissors 1 and the right scissors 2 are operated, the position of the left scissors 1 and the right scissors 2 changes, which drives the first pincers 4 and the second pincers 5 to move close to each other, and the displacement of the first pincers 4 and the relative displacement of the second pincers 5 also change. Through the device, the needle is fixed and moved, and the effect of taking and placing the needle is realized. The needle is shuttled in the nasal septum through the suture tool, which reduces the work burden and the operation complexity, and improves the work efficiency of the doctor.

[0067] Optionally, in the embodiment, the first locking mechanism comprises a first screw rod, a first screw cap 42 and a first spring. The first pair of tweezers arms 4 is divided into an inner tweezers arm and an outer tweezers arm. The first screw rod is located in the middle of the first pair of tweezers arms 4. The head end of the first screw rod is fixed on the inner tweezers arm, and the tail end of the first screw rod is arranged through the outer tweezers arm, and the tail end of the first screw rod protrudes out of the outer tweezers arm. The first screw cap 42 is fixed between the tail end of the first screw rod and the outer tweezers arm. Since the inner tweezers arm and the outer tweezers arm are automatically opened, the first screw cap 42 plays a role of extruding and resisting the outer tweezers arm. One end of the left lead wire 6 is fixed on the outer edge of the first screw cap 42, and is located at the middle position of the outer edge. A first elastic member 43 is fixed on the side of the left lead wire 6 opposite to the position where the left lead wire 6 is fixed on the first screw cap 42. The first elastic member 43 can be a spring. One end of the first spring is fixed on the first screw cap 42, and the other end is fixed on the outer tweezers arm, and the height of the other end is lower than the height of the first screw cap 42. When the left lead wire 6 pulls the first screw cap 42, the position where the left lead wire 6 is fixed on the first screw cap 42 rotates from the middle of the first screw cap 42 to the bottom of the first screw cap 42, realizing the pulling effect of the left lead wire 6 on the first screw cap 42. Since the first spring is in a natural state when the first screw cap 42 has not been rotated, when the first screw cap 42 is rotated, the position where the first spring is fixed on the first screw cap 42 changes from the middle to the top of the first screw cap 42, and at this time, the first spring is in a stretched state, and has a stretching elastic force on the first screw cap 42. When the left lead wire 6 does not have the pulling effect on the first screw cap 42, since the first spring has the elastic force, the position where the first spring is fixed on the first screw cap 42 is pulled back from the top to the middle, and at this time, the position of the left lead wire 6 on the first screw cap 42 also changes from the bottom to the middle of the first screw cap 42.

[0068] The second locking mechanism comprises a second screw rod 52, a second screw cap 53 and a second spring. The second pincers 5 are divided into inner pincers and outer pincers, the second screw rod 52 is located in the middle of the second pincers 5, the head end of the second screw rod 52 is fixed on the inner pincers, the tail end of the second screw rod 52 is arranged on the outer pincers, and the tail end of the second screw rod 52 protrudes from the outer pincers, the rotation direction of the screw thread on the second screw cap 53 is opposite to that of the screw thread on the first screw cap 42. The second screw cap 53 is fixed between the tail end of the second screw rod 52 and the outer pincers, and the second screw cap 53 exerts a pressing force on the outer pincers because the inner pincers and the outer pincers are automatically opened. One end of the right lead wire 7 is fixed on the outer edge of the second screw cap 53 and located at the middle of the outer edge, and a second elastic member 54 is fixed on the side of the right lead wire 7 opposite to the position where the right lead wire 7 is fixed on the second screw cap 53, and the second elastic member 54 can be a spring. One end of the second spring is fixed on the second screw cap 53, and the other end is fixed on the outer pincers and located below the height of the second screw cap 53. When the right lead wire 7 pulls the second screw cap 53, the position where the right lead wire 7 is fixed on the second screw cap 53 rotates from the middle of the second screw cap 53 to the bottom of the second screw cap 53, realizing the pulling effect of the right lead wire 7 on the second screw cap 53. When the second screw cap 53 is not rotated, the second spring is in a natural state, and when the second screw cap 53 is rotated, the position where the second spring is fixed on the second screw cap 53 changes from the middle to the top of the second screw cap 53, and at this time, the second spring is in a stretched state and has a stretching force on the second screw cap 53. When the right lead wire 7 does not have a pulling effect on the second screw cap 53, the second spring has a force, and the position where the second spring is fixed on the second screw cap 53 is pulled back from the top to the middle, and at this time, the position of the right lead wire 7 on the second screw cap 53 also changes from the bottom to the middle of the second screw cap 53. Because the rotation directions of the first screw cap 42 and the second screw cap 53 are opposite under the pulling of the left lead wire 6 and the right lead wire 7, when the first screw cap 42 exerts a pressing force on the first pincers 4, the second screw cap 53 is in a relaxed state on the second pincers 5, thereby realizing the fixing and loosening of the needle.

[0069] Optionally, in the present embodiment, a first through hole is arranged on the outer pincers of the first pincers 4, and the first screw rod is arranged in the first through hole. Because the outer pincers and the inner pincers are in an open state, when the first screw cap 42 exerts a pressing force on the outer pincers, the movement track of the outer pincers is in an arc shape, rather than a translation, so if the diameter of the first through hole is the same as that of the first screw rod, the first screw rod will exert a pressing force on the outer pincers during the movement of the outer pincers, and will affect the rotation of the first screw cap 42. Therefore, the diameter of the first through hole is set to be greater than that of the first screw rod, and when the first screw cap 42 exerts a pressing force on the outer pincers, the first screw rod can shuttle in the first through hole without any obstruction, and the service life of the outer pincers is also prolonged.

[0070] The outer tweezers arm of the second tweezers arm 5 is provided with a second through hole, and the second screw rod 52 is arranged in the second through hole. Since the outer tweezers arm and the inner tweezers arm are in an open state, when the second screw cap 53 extrudes the outer tweezers arm, the movement track of the outer tweezers arm is in an arc shape, instead of translation, so if the diameter of the second through hole is the same as the diameter of the second screw rod 52, the second screw rod 52 will extrude the outer tweezers arm in the moving process, and will affect the rotation of the second screw cap 53. Therefore, the diameter of the second through hole is set to be greater than the diameter of the second screw rod 52, so that the second screw rod 52 can shuttle in the second through hole without obstruction when the second screw cap 53 extrudes the outer tweezers arm, and the service life of the outer tweezers arm is also prolonged.

[0071] Optionally, in the embodiment, the pair of first clamping pieces 41 and the pair of second clamping pieces 51 are magnetic materials. The magnetic material has a certain adsorption effect on the needle. In the process of the operation, the needle needs to be clamped and released constantly, and if the operation is not proper, the needle will fall off. By using the magnetic material, the probability of the needle falling off is reduced. Even after the needle is released, the clamping piece still has an adsorption effect on the needle until the other clamping piece takes away the needle.

[0072] Optionally, in the embodiment, as shown in Figure 1 , the pair of clamping pieces includes a front clamping piece and a rear clamping piece, and the front clamping piece and the rear clamping piece are both provided with a semicircular clamping hole 55, and the opening directions of the two clamping holes 55 are oppositely arranged. When the front clamping piece and the rear clamping piece are in close contact, the two semicircular clamping holes 55 form a circular closed shape, and the diameter of the circular shape is just equal to the diameter of the needle. The needle is placed in the clamping hole 55 to fix the needle, so as to ensure the smooth progress of the operation.

[0073] Optionally, in the embodiment, as shown in Figure 4 , the clamping hole 55 is further provided with an anti-skid pad 8. The anti-skid pad 8 can assist the clamping hole 55 to fix the needle, and increase the friction force between the needle and the clamping hole 55, so as to prevent the needle from falling off.

[0074] Optionally, in the embodiment, the left knife scissors 1 and the right knife scissors 2 are provided with a finger ring 9 at the bottom. The bottom of the left knife scissors 1 and the right knife scissors 2 is the hand-holding position, and the addition of the finger ring 9 can facilitate the doctor to hold and operate conveniently.

[0075] Optionally, in the embodiment, the pair of first pincers 4 is in an open state, the first pincers 4 are squeezed and relaxed by the first screw and the first nut 42, when the internal thread of the first nut 42 is damaged and slips, the first nut 42 has no effect on the first pincers 4, the third elastic member 44, which can be a spring, is installed between the pair of first pincers 4, when the pair of first pincers 4 is open, the third spring is in a stretched state, therefore, in addition to the limited effect of the first nut 42 on the first pincers 4, the third spring also has an auxiliary limiting effect on the third pincers, preventing the pair of first pincers 4 from opening too wide and unable to return to the initial position. The pair of second pincers 5 is in an open state, the second pincers 5 are squeezed and relaxed by the second screw 52 and the second nut 53, when the internal thread of the second nut 53 is damaged and slips, the second nut 53 has no effect on the second pincers 5, the fourth elastic member 56, which can be a spring, is installed between the pair of second pincers 5, when the pair of second pincers 5 is open, the fourth spring is in a stretched state, therefore, in addition to the limited effect of the second nut 53 on the second pincers 5, the fourth spring also has an auxiliary limiting effect on the third pincers, preventing the pair of second pincers 5 from opening too wide and unable to return to the initial position.

[0076] Optionally, in the embodiment, the tail end of the first screw and the second screw 52 is fixed with a cap 10, the cap 10 is located outside the first nut 42 and the second nut 53, respectively, and functions as a limiting position for the first nut 42 and the second nut 53, preventing the first nut 42 from detaching from the first screw and the second nut 53 from detaching from the second screw 52.

[0077] In the present application, unless otherwise explicitly specified and limited, the second feature is "on" or "under" the second feature, which can be direct contact between the second feature and the second feature, or indirect contact between the second feature and the second feature through an intermediate medium.

[0078] Moreover, the second feature is "on", "above" and "on" the second feature, which can be directly above or obliquely above the second feature, or only indicates that the second feature is higher in horizontal height than the second feature. The second feature is "under", "below" and "under" the second feature, which can be directly below or obliquely below the second feature, or only indicates that the second feature is lower in horizontal height than the second feature.

[0079] In the description of the specification, the description of the terms "two embodiments", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least two embodiments or examples of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any two or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0080] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A suturing tool characterized by, The utility model relates to a left scissors, right scissors, pivot, left clamping part, right clamping part, left lead and right lead; The left scissors and the right scissors are hinged through the pivot; The left clamping part is located at the front end of the left scissors, and the right clamping part is located at the front end of the right scissors; The left clamping part comprises a pair of first tweezers arms, a pair of first clamping pieces and a first locking mechanism; One end of the first tweezers arm is fixed with the left scissors, and the other end is fixed with the first clamping piece; The first locking mechanism is located at the middle part of the first tweezers arm, and is used for adjusting the opening angle of the first tweezers arm; One end of the left lead is fixed with the first locking mechanism, and the other end is fixed with the right scissors, and the right scissors drives the left lead to rotate to control the tension of the first locking mechanism; The right clamping part comprises a pair of second tweezers arms, a pair of second clamping pieces and a second locking mechanism; One end of the second tweezers arm is fixed with the right scissors, and the other end is fixed with the second clamping piece; The second locking mechanism is located at the middle part of the second tweezers arm, and is used for adjusting the opening angle of the second tweezers arm; One end of the right lead is fixed with the second locking mechanism, and the other end is fixed with the left scissors, and the left scissors drives the right lead to rotate to control the tension of the second locking mechanism; The moving path of the first clamping piece and the second clamping piece is perpendicular to the moving path of the left scissors and the right scissors respectively; The first locking mechanism comprises a first screw rod, a first nut and a first elastic piece; One end of the first screw rod is fixed on the first tweezers arm, and the other end is fixed with the first nut through the first tweezers arm; One end of the left lead is fixed on the right scissors, and the other end is fixed at the outer edge of the first nut; One end of the first elastic piece is fixed on the first tweezers arm where the first nut is located, and the other end is fixed on the first nut, and the fixed position of the left lead on the first nut and the fixed position of the first elastic piece are symmetrical about the first nut; The second locking mechanism comprises a second screw rod, a second nut and a second elastic piece; One end of the second screw rod is fixed on the second tweezers arm, and the other end is fixed with the second nut through the second tweezers arm; One end of the right lead is fixed on the left scissors, and the other end is fixed at the outer edge of the second nut; One end of the second elastic piece is fixed on the second tweezers arm where the second nut is located, and the other end is fixed on the second nut, and the fixed position of the right lead on the second nut and the fixed position of the second elastic piece are symmetrical about the second nut; The screw thread rotation direction on the first screw rod is opposite to the screw thread rotation direction on the second screw rod; ​ When the left scissors and the right scissors rotate, the first nut and the second nut are driven to rotate in opposite directions, thereby driving the first tweezer arm to tighten or loosen, while driving the second tweezer arm to loosen or tighten, and the first elastic member and the second elastic member are in a stretched state during the rotation of the first nut and the second nut, respectively.

2. The suturing tool of claim 1, wherein, An end of the first tweezer arm movably connected with the first screw rod is provided with a first through hole, and a diameter of the first through hole is greater than a diameter of the first screw rod; An end of the second tweezer arm movably connected with the second screw rod is provided with a second through hole, and a diameter of the second through hole is greater than a diameter of the second screw rod.

3. The suturing tool of claim 1, wherein, The first clamping piece and the second clamping piece are magnetic materials.

4. The suturing tool of claim 3, wherein, The first clamping piece and the second clamping piece comprise a front clamping piece and a rear clamping piece. The front clamping piece and the rear clamping piece are both provided with semicircular clamping holes, and the opening directions of the clamping holes are oppositely arranged, and when the front clamping piece and the rear clamping piece are attached to each other, the two clamping holes form a circular closed shape.

5. The suturing tool of claim 4, wherein, The clamping hole is further provided with an anti-skid pad.

6. The suturing tool of claim 1, wherein, Further comprising: a finger ring; The finger ring is respectively located at a bottom end of the left scissors and the right scissors.

7. The suturing tool of claim 1, wherein, Further comprising: a third elastic member and a fourth elastic member; The third elastic member is located between a pair of the first tweezer arms, and when the first tweezer arms are opened, the third elastic member is in a stretched state; The fourth elastic member is located between a pair of the second tweezer arms, and when the second tweezer arms are opened, the fourth elastic member is in a stretched state.

8. The suturing tool of claim 1, wherein, Further comprising: two caps; The caps are respectively sleeved at the ends of the first screw rod and the second screw rod, and the caps are used to abut against the first nut and the second nut.

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