CN211243531U

CN211243531U - Endoscopic surgery stitching instrument

Info

Publication number: CN211243531U
Application number: CN201921888607.2U
Authority: CN
Inventors: 陈天鸣; 潘耀振; 陈仕林; 任琦蓉
Original assignee: Jiangsu Cancer Hospital
Current assignee: Jiangsu Cancer Hospital
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-08-14
Anticipated expiration: 2029-11-05

Abstract

The utility model creatively discloses an endoscopic surgery stitching instrument, which comprises a main rod, a clamping rod, a single-row nail bin, a clamping driving mechanism, a nail pushing mechanism and a locking mechanism; a tangent plane is arranged at the side edge of the front end of the main rod; the clamping rod is hinged to the tangent plane in a swinging mode; a nail bin groove is axially arranged on the tangent plane along the main rod, and the single-row nail bins are placed in the nail bin groove; the nail pushing mechanism is used for pushing the U-shaped titanium nails in the single-row nail bin to the clamping surface of the clamping rod; the clamping driving mechanism is used for driving the swinging clamping of the clamping rod; the locking mechanism is used for locking and releasing the nail pushing mechanism. Compared with the existing anastomat, the suturing device reduces the cutting part and the suturing structure on the other side, so that the whole occupied space of the front end is small, the size of the front end of the instrument is effectively reduced, and the small use requirement of the internal space of the endoscopic surgery is met.

Description

Endoscopic surgery stitching instrument

Technical Field

The invention relates to a stitching instrument, in particular to an endoscopic surgery stitching instrument.

Background

At present, when lung surgery is carried out, a part of tissues such as a cut lung and the like needs to be discarded and can be cut by an electric hook or an ultrasonic knife, a part needing to be reserved needs to be firmly sewn, a titanium clip with a buckle or the ultrasonic knife and the like are unreliable, so that the sewing is needed to be firm, but the spaces of parts such as blood vessels and the like under an endoscope are small, but the existing lancing device is large in size, large in operation difficulty and high in risk. Therefore, it is necessary to design an endoscopic surgery stitching instrument, which can only clamp and stitch tissues, so that the volume of the front end of the instrument is small, and the cutting instrument is used for cutting redundant tissues independently after stitching, thereby meeting the use requirements of endoscopic surgery.

Disclosure of Invention

The invention has the following aims: the utility model provides an laparoscopic surgery stitching instrument can carry out the centre gripping to the tissue and sew up, and the equipment front end volume is less, can satisfy laparoscopic surgery's use needs.

The technical scheme is as follows: the invention provides an endoscopic surgery stitching instrument which comprises a main rod, a clamping rod, a single-row nail bin, a clamping driving mechanism, a nail pushing mechanism and a locking mechanism;

the side edge of the front end of the main rod is provided with a tangent plane, and the tangent plane is parallel to the axial direction of the main rod; the clamping rod is hinged at the tangent plane in a swinging manner, so that the clamping rod is pressed on the tangent plane after swinging; a nail bin groove is axially arranged on the tangent plane along the main rod, and the single-row nail bins are placed in the nail bin groove; the nail pushing mechanism is arranged in the main rod and used for pushing the U-shaped titanium nails in the single-row nail bin to the clamping surface of the clamping rod; the clamping surface of the clamping rod is provided with strip-shaped grooves at intervals in a single row, and two end surfaces of each strip-shaped groove are arc-shaped slopes used for extruding and bending two end parts of the U-shaped titanium nail; the clamping driving mechanism is arranged on the main rod and used for driving the swinging clamping of the clamping rod; the locking mechanism is arranged at the tail end of the main rod and used for locking and releasing the nail pushing mechanism.

Furthermore, the single-row nail bin consists of a strip-shaped shell and each nail pushing block; a rectangular hole for pushing the nail is formed in the middle of the rear end face of the strip-shaped shell along the length direction; nail strip-shaped holes are arranged on the upper side surface of the strip-shaped shell at intervals along the length direction, and each nail strip-shaped hole is communicated with the nail-pushing rectangular hole; lifting limiting grooves are arranged on the wall of the nail pushing rectangular hole and below each nail strip-shaped hole; each nail pushing block is respectively arranged in each lifting limiting groove, and the thickness of each nail pushing block is larger than the hole width of the nail pushing rectangular hole; a strip-shaped nail groove is arranged on the upper side surface of the nail pushing block; the bending section of the U-shaped titanium nail is inserted into the strip-shaped nail groove, and two end parts of the U-shaped titanium nail extend into the nail strip-shaped hole; the lower side surface of the nail pushing block is provided with a nail pushing slope surface.

Further, the nail pushing mechanism comprises a nail pushing support plate, a nail pushing rod, a guide lock rod, a guide slide block and a nail pushing pressure spring; a supporting slope surface for extruding the slope surface of the push nail is arranged on the front side edge of the push nail supporting plate; a guide sliding hole is axially arranged in the main rod, and a guide sliding block is slidably arranged in the guide sliding hole; the rear end of the nail pushing rod penetrates through the nail bin groove and extends into the guide sliding hole, and is fixed on the front side surface of the guide sliding block; the nail pushing support plate is fixedly arranged on the front end part of the nail pushing rod, and the front end of the nail pushing support plate is aligned to the rear end orifice of the nail pushing rectangular hole; a lock rod hole is axially arranged in the rear end of the main rod; the guide lock rod is inserted in the lock rod hole; the nail pushing compression spring is sleeved on the guide lock rod and elastically supported between the rear side surface of the guide sliding block and the rear end surface of the guide sliding hole; the locking mechanism is used for locking and releasing the guide lock rod.

Further, the locking mechanism comprises a locking pressure rod and a locking pressure spring; a bar-shaped guide hole communicated with the lock rod hole is axially arranged on the rod wall at the rear end of the main rod; the rear end of the guide lock rod is provided with a side raised line extending out of the strip-shaped guide hole; the front side of the side raised line is provided with a poking raised line, and the rear side of the side raised line is provided with a locking tooth; the middle part of the locking pressure rod is arranged on the rod wall of the main rod in a swinging mode through a pressure rod support, and the pressure rod support is positioned at the rear side edge of the strip-shaped guide hole; the front end of the locking pressure lever is provided with a buckle tooth which is buckled with the locking tooth; the locking compression spring is elastically supported between the rear end of the locking compression rod and the rod wall of the main rod and used for pushing the buckle teeth at the front end of the locking compression rod to be buckled on the locking teeth.

Furthermore, a protective sleeve head is sleeved at the rear end of the locking pressure rod and supported on the rod wall of the main rod; the tail end of the main rod is provided with a handle rod in an extending way, and the outer wall of the handle rod is provided with an anti-slip convex edge.

Furthermore, the length edges of the two sides of the tangent plane are respectively provided with a strip-shaped pressing groove, and the clamping surface of the clamping rod is provided with an anti-skid rubber strip at the position opposite to the strip-shaped pressing groove.

Furthermore, the clamping driving mechanism comprises a transmission rod, a sliding seat, a rebound pressure spring, an extrusion block, a driving screw and a knob head; a strip-shaped notch is formed in the rear side edge of the tangent plane on the main rod; the rear end of the clamping rod extends backwards to be provided with a hinged convex strip, the lower side edge of the hinged convex strip is a chamfered edge, and a push-pull strip-shaped hole is formed along the chamfered edge; the hinged convex strips are embedded into the strip-shaped notches and are hinged and installed on the strip-shaped notches in a swinging mode through hinged short shafts arranged on the side edges; a rectangular mounting groove is formed in the wall of the tail end rod of the main rod, and a transmission hole penetrates between the rectangular mounting groove and the strip-shaped notch; the transmission rod is inserted in the transmission hole, and the front end of the transmission rod is provided with a U-shaped fork head; a push-pull driving shaft is arranged between the fork rods on the two sides of the U-shaped fork head and penetrates through the push-pull strip-shaped hole; the sliding seat is positioned in the rectangular mounting groove and is fixedly arranged at the rear end of the transmission rod; the resilience pressure spring is sleeved on the rear end of the transmission rod and elastically supported between the rectangular mounting groove and the sliding seat; one end of the driving screw is rotatably arranged at the bottom of the rectangular mounting groove, the other end of the driving screw extends out of the rectangular mounting groove, and the knob head is fixedly arranged on the extending end part of the driving screw; a driving threaded hole is formed in the extrusion block, and the driving screw is screwed on the driving threaded hole; the rear side surface of the sliding seat is provided with a rear side extrusion surface, and the front side extrusion surface is arranged on the front side of the extrusion block and opposite to the rear side extrusion surface.

Furthermore, guide strip-shaped grooves are formed in the side groove edges of the length sides of the two sides of the strip-shaped groove opening and are parallel to the axial direction of the transmission rod; two convex shafts are arranged on the side edges of the front end part of the transmission rod, and the end parts of the two convex shafts are respectively embedded into the guide strip-shaped grooves on the two sides in a sliding mode.

Further, a strip-shaped supporting groove parallel to the transmission rod is arranged on the groove side of the rectangular mounting groove; the side of the sliding seat is provided with a supporting slide block which is embedded into the strip-shaped supporting groove in a sliding way.

Furthermore, rubber extrusion strips for extruding the single-row nail bins are arranged on the side edges of the side grooves on the length sides of the two sides of the nail bin groove; the front end faces of the main rod and the clamping rods are both arc-shaped slope surfaces.

Compared with the prior art, the invention has the beneficial effects that: utilize single row nail storehouse to install in nail storehouse groove, realize single row sewing under pushing and pressing the effect of nail pushing mechanism, compare in current anastomat and reduced the suture structure of cutting knife part and opposite side for the whole occupation space of front end has reduced half at least, has effectively reduced the volume of equipment front end, uses more nimble convenient safety, satisfies the little use needs of laparoscopic surgery inner space.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional structure of the present invention;

FIG. 3 is a schematic cross-sectional view of a single-row staple cartridge created by the present invention;

FIG. 4 is a schematic view of the rear end structure of the clamping rod of the present invention;

FIG. 5 is a schematic view of a partial sectional structure of the rectangular mounting groove of the present invention.

Detailed Description

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

Example 1:

as shown in FIGS. 1-5, the endoscopic surgical stapler of the present invention comprises: the nail pushing device comprises a main rod 1, clamping rods 3, a single-row nail bin, a clamping driving mechanism, a nail pushing mechanism and a locking mechanism;

the side edge of the front end side of the main rod 1 is provided with a tangent plane 2, and the tangent plane 2 is parallel to the axial direction of the main rod 1; the clamping rod 3 is hinged to the section 2 in a swinging mode, so that the clamping rod 3 is pressed on the section 2 after swinging; a nail bin groove 49 is axially arranged on the section 2 along the main rod 1, and the single-row nail bins are placed in the nail bin groove 49; the nail pushing mechanism is arranged in the main rod 1 and used for pushing the U-shaped titanium nails 26 in the single-row nail bin to the clamping surface of the clamping rod 3; the clamping surface of the clamping rod 3 is provided with strip-shaped grooves 48 at intervals in a single row, and two end surfaces of each strip-shaped groove 48 are provided with arc-shaped slopes for extruding and bending two end parts of the U-shaped titanium nail 26; the clamping driving mechanism is arranged on the main rod 1 and used for driving the swinging clamping of the clamping rod 3; the locking mechanism is arranged at the tail end of the main rod 1 and used for locking and releasing the nail pushing mechanism.

The single-row nail bin is arranged in the nail bin groove 49, single-row sewing is realized under the pushing action of the nail pushing mechanism, and compared with the existing anastomat, the single-row stapler has the advantages that the cutting part and the sewing structure on the other side are reduced, so that the whole occupied space of the front end is small, the volume of the front end of the equipment is effectively reduced, and the use requirement of small internal space of the endoscopic surgery is met; the clamping rod 3 is used for swinging and then pressing on the tangent plane 2, thereby stably clamping the tissue and facilitating the suture by utilizing a row of U-shaped titanium nails 26.

Further, the single-row nail bin consists of a strip-shaped shell 5 and each nail pushing block 23; a rectangular push nail hole 21 is formed in the middle of the rear end face of the strip-shaped shell 5 along the length direction; nail strip-shaped holes 52 are arranged on the upper side surface of the strip-shaped shell 5 at intervals along the length direction, and each nail strip-shaped hole 52 is communicated with the nail-pushing rectangular hole 21; nail strip-out holes 52 correspond to the strip-shaped grooves 48; lifting limiting grooves 22 are formed in the wall of the nail pushing rectangular hole 21 and below the nail strip-shaped holes 52; each nail pushing block 23 is respectively arranged in each lifting limiting groove 22, and the thickness of each nail pushing block 23 is larger than the hole width of each nail pushing rectangular hole 21; a strip-shaped nail groove 24 is arranged on the upper side surface of the nail pushing block 23; the bent sections of the U-shaped titanium nails 26 are inserted into the strip-shaped nail grooves 24, and two end parts of the U-shaped titanium nails 26 extend into the nail strip-shaped holes 52; a nail pushing slope surface 25 is arranged on the lower side surface of the nail pushing block 23.

The thickness of the nail pushing block 23 is set to be larger than the hole width of the nail pushing rectangular hole 21, so that dislocation cannot occur in the lifting process, and in addition, the nail pushing slope 25 arranged on the lower side face of the nail pushing block 23 is matched with the nail pushing mechanism, so that the lifting process of the nail pushing block 23 is stable, the U-shaped titanium nail 26 can stably rise, and the success rate of sewing at one time is ensured.

Further, the nail pushing mechanism comprises a nail pushing support plate 28, a nail pushing rod 27, a guide lock rod 36, a guide slide block 39 and a nail pushing pressure spring 38; a support slope surface 29 for extruding the nail pushing slope surface 25 is arranged at the front side edge of the nail pushing support plate 28; a guide sliding hole 40 is axially arranged in the main rod 1, and a guide sliding block 39 is slidably arranged in the guide sliding hole 40; the rear end of the nail pushing rod 27 penetrates through the nail bin groove 49 and extends into the guide sliding hole 40, and is fixed on the front side surface of the guide sliding block 39; the nail-pushing supporting plate 28 is fixedly arranged on the front end part of the nail-pushing rod 27, and the front end of the nail-pushing supporting plate 28 is rightly opposite to the rear end hole opening of the nail-pushing rectangular hole 21; a locking rod hole 37 is axially arranged in the rear end of the main rod 1; the guide lock rod 36 is inserted into the lock rod hole 37; the nail pushing compression spring 38 is sleeved on the guide lock rod 36, and the nail pushing compression spring 38 is elastically supported between the rear side surface of the guide slide block 39 and the rear end surface of the guide slide hole 40; the lock mechanism is used for lock and release control of the pilot lock lever 36. The supporting slope surface 29 and the nail pushing slope surface 25 are matched and extruded, so that the nail pushing block 23 can move upwards along the lifting limiting groove 22; the nail pushing supporting plate 28 can be rapidly moved forwards by the nail pushing compression spring 38 after the guide lock rod 36 is released, so that the nail pushing block 23 is pushed to ascend, and the clamped tissue is sutured by the row of U-shaped titanium nails 26.

Further, the locking mechanism comprises a locking pressure rod 8 and a locking pressure spring 9; a bar-shaped guide hole 55 communicated with the lock rod hole 37 is axially arranged on the rod wall at the rear end of the main rod 1; the rear end of the guiding lock rod 36 is provided with a side convex strip 13 extending out of the strip-shaped guiding hole 55; a toggle convex strip 12 is arranged on the front side of the side convex strip 13, and a locking tooth 11 is arranged on the rear side of the side convex strip 13; the middle part of the locking compression bar 8 is arranged on the bar wall of the main bar 1 in a swing mode through a compression bar support 7, and the compression bar support 7 is positioned at the rear side edge of the strip-shaped guide hole 55; the front end of the locking pressure lever 8 is provided with a buckle tooth 10 which is buckled with a locking tooth 11; the locking compression spring 9 is elastically supported between the rear end of the locking compression rod 8 and the rod wall of the main rod 1 and used for pushing the buckling teeth 10 at the front end of the locking compression rod 8 to buckle on the locking teeth 11. The toggle convex strip 12 can be used for conveniently pulling the guide lock rod 36 backwards manually, so that the locking teeth 11 are buckled with the buckling teeth 10, and the locking of the guide lock rod 36 is completed; the locking compression spring 9 can push the rear end of the locking compression rod 8 to swing outwards, so that the locking teeth 11 at the front end are firmly buckled with the buckling teeth 10; the side convex strips 13 extend out of the strip-shaped guide holes 55, so that the guide lock rod 36 can be limited to rotate, and the front nail pushing support plate 28 can be ensured to be stable in nail pushing.

Furthermore, a protective sleeve head 4 is sleeved on the rear end of the locking compression bar 8, and the protective sleeve head 4 is supported on the bar wall of the main bar 1; a handle rod 19 is extended from the tail end of the main rod 1, and an anti-slip convex edge 6 is arranged on the outer wall of the handle rod 19. The rear end of the locking pressure rod 8 can be supported by the protective sleeve head 4, and the guide lock rod 36 is prevented from being released by mistakenly pressing the locking pressure rod 8 in use; the anti-slip ribs 6 can play a certain anti-slip function when being held by hands.

Furthermore, the length edges of the two sides of the tangent plane 2 are respectively provided with a strip-shaped pressing groove, and the clamping surface of the clamping rod 3 is provided with an anti-skid rubber strip 20 at the position opposite to the strip-shaped pressing groove. The anti-skid performance during clamping can be ensured by the matching of the strip-shaped pressing groove and the anti-skid rubber strip 20.

Further, the clamping driving mechanism comprises a transmission rod 18, a sliding seat 15, a rebound pressure spring 16, an extrusion block 54, a driving screw rod 30 and a knob head 17; a strip-shaped notch 41 is arranged on the main rod 1 and positioned at the rear side edge of the tangent plane 2; a hinge convex strip 44 extends backwards from the rear end of the clamping rod 3, the lower side edge of the hinge convex strip 44 is a chamfered edge, and a push-pull strip-shaped hole 45 is arranged along the chamfered edge; the hinge convex strip 44 is embedded into the strip-shaped notch 41 and is installed on the strip-shaped notch 41 in a swing hinge mode through a hinge short shaft 56 arranged on the side edge; a rectangular mounting groove 14 is arranged on the wall of the tail end rod of the main rod 1, and a transmission hole 53 is arranged between the rectangular mounting groove 14 and the strip-shaped notch 41 in a penetrating manner; the transmission rod 18 is inserted in the transmission hole 53, and the front end of the transmission rod 18 is provided with a U-shaped fork head 42; a push-pull driving shaft 43 is arranged between the fork rods on the two sides of the U-shaped fork head 42, and the push-pull driving shaft 43 penetrates through the push-pull strip-shaped hole 45; the sliding seat 15 is positioned in the rectangular mounting groove 14 and is fixedly mounted on the rear end of the transmission rod 18; the rebound compression spring 16 is sleeved on the rear end of the transmission rod 18, and the rebound compression spring 16 is elastically supported between the rectangular mounting groove 14 and the sliding seat 15; one end of the driving screw 30 is rotatably installed at the bottom of the rectangular installation groove 14, the other end of the driving screw 30 extends out of the rectangular installation groove 14, and the knob head 17 is fixedly installed at the extending end of the driving screw 30; a driving threaded hole 35 is formed in the extrusion block 54, and the driving screw 30 is screwed in the driving threaded hole 35; a rear pressing surface 32 is provided on the rear side surface of the slide shoe 15, and a front pressing surface 31 is provided on the front side of the pressing block 54 so as to face the rear pressing surface 32. By utilizing the matching of the push-pull strip-shaped hole 45 and the push-pull driving shaft 43, when the U-shaped fork head 42 at the front end of the transmission rod 18 moves forwards, the rear end of the hinge convex strip 44 is pushed to swing outwards, so that the front end of the clamping rod 3 is clamped to the tangent plane 2, and when the U-shaped fork head 42 at the front end of the transmission rod 18 moves backwards, the rear end of the hinge convex strip 44 is pulled to swing inwards, so that the front end of the clamping rod 3 is released from clamping; when the extrusion block 54 moves towards the rectangular mounting groove 14, the rebound compression spring 16 can make the sliding seat 15 move backwards in time, so that the transmission rod 18 moves backwards in time.

Further, guide strip-shaped grooves 46 are formed in the side groove edges of the length of the two sides of the strip-shaped notch 41, and the guide strip-shaped grooves 46 are parallel to the axial direction of the transmission rod 18; two protruding shafts 47 are provided at the front end side of the driving rod 18, and the ends of the two protruding shafts 47 are slidably inserted into the guide grooves 46 at both sides, respectively. The cooperation of the protruding shaft 47 and the guiding strip-shaped groove 46 can stably support the front end of the transmission rod 18, and the front end does not bend when pushing and pulling.

Further, a strip-shaped support groove 34 parallel to the transmission rod 18 is arranged on the groove side of the rectangular mounting groove 14; the side of the sliding seat 15 is provided with a supporting slide block 33 which is slidably embedded into a strip-shaped supporting groove 34. The strip-shaped supporting groove 34 and the supporting sliding block 33 are matched to realize the smooth sliding of the sliding seat 15, and the rear end of the transmission rod 18 is not bent under the extrusion of the extrusion block 54.

Further, rubber extrusion strips 50 for extruding the single-row nail bin are arranged on the side of the length side grooves on the two sides of the nail bin groove 49; the front end surfaces of the main rod 1 and the clamping rod 3 are both provided with arc-shaped slope surfaces 51. The elastic clamping and fixing of the single-row nail bin can be realized by utilizing the rubber extrusion strip 50; the arc-shaped slope 51 can be conveniently inserted into the cavity mirror opening.

When the endoscopic surgery stitching instrument disclosed by the invention is used, a single row of nail bins are pressed into the nail bin grooves 49, and the rubber extrusion strips 50 on the two sides clamp and fix the strip-shaped shell 5; when the endoscope opening is inserted, the extrusion block 54 moves outwards by rotating the knob head 17 in the forward direction, the sliding seat 15 is pushed forwards by pressing, and the clamping rod 3 is pressed on the section 2, so that the endoscope opening is conveniently inserted; when the tissue to be sutured is clamped, firstly, the knob head 17 is rotated reversely, the sliding seat 15 is pushed by the rebounding pressure spring 16 to move backwards, so that the transmission rod 18 moves backwards to pull the front end of the clamping rod 3 to tilt, a clamping included angle is opened, the tissue to be sutured is clamped conveniently, and then, the knob head 17 is rotated forwardly to enable the clamping rod 3 to swing towards the tangent plane 2, so that the tissue to be sutured is clamped stably; when suturing, firstly, the protective sleeve head 4 is pulled out, the rear end of the locking pressure rod 8 is pressed to separate the locking teeth 11 from the buckling teeth 10, so that the guide slide block 39, the nail pushing rod 27 and the nail pushing support plate 28 are pushed by the nail pushing pressure spring 38 to move forwards quickly, each U-shaped titanium nail 26 is pushed out of the nail strip-shaped hole 52 by the nail pushing support plate 28 and the support slope surface 29, two ends of each U-shaped titanium nail 26 penetrate through tissues, and the U-shaped titanium nails are bent in the strip-shaped grooves 48 to complete suturing; after the suturing, the clamping rods 3 are loosened again, the clamped tissues are released, and then the clamping rods 3 are clamped, so that the main rod 1 can be conveniently pulled out from the cavity mirror opening.

As mentioned above, although the invention has been shown and described with reference to certain preferred embodiments, it should not be construed as being limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an laparoscopic surgery stitching instrument which characterized in that: comprises a main rod (1), clamping rods (3), a single-row nail bin, a clamping driving mechanism, a nail pushing mechanism and a locking mechanism;

the side edge of the front end side of the main rod (1) is provided with a tangent plane (2), and the tangent plane (2) is parallel to the axial direction of the main rod (1); the clamping rod (3) is hinged at the tangent plane (2) in a swinging way, so that the clamping rod (3) is pressed on the tangent plane (2) after swinging; a nail bin groove (49) is axially arranged on the section (2) along the main rod (1), and the single-row nail bins are placed in the nail bin groove (49); the nail pushing mechanism is arranged in the main rod (1) and used for pushing the U-shaped titanium nails (26) in the single-row nail bin to the clamping surface of the clamping rod (3); strip-shaped grooves (48) are arranged on the clamping surface of the clamping rod (3) at intervals in a single row, and two end surfaces of each strip-shaped groove (48) are provided with arc-shaped slopes for extruding and bending two end parts of the U-shaped titanium nail (26); the clamping driving mechanism is arranged on the main rod (1) and used for driving the swinging clamping of the clamping rod (3); the locking mechanism is arranged at the tail end of the main rod (1) and used for locking and releasing the nail pushing mechanism.

2. The laparoscopic surgical stapler of claim 1, wherein: the single-row nail bin consists of a strip-shaped shell (5) and each nail pushing block (23); a rectangular push nail hole (21) is formed in the middle of the rear end face of the strip-shaped shell (5) along the length direction; nail strip-shaped holes (52) are formed in the upper side face of the strip-shaped shell (5) at intervals along the length direction, and each nail strip-shaped hole (52) is communicated with the nail-pushing rectangular hole (21); lifting limiting grooves (22) are arranged on the wall of the nail pushing rectangular hole (21) and below each nail strip-shaped hole (52); each nail pushing block (23) is respectively arranged in each lifting limiting groove (22), and the thickness of each nail pushing block (23) is larger than the hole width of each nail pushing rectangular hole (21); a strip-shaped nail groove (24) is arranged on the upper side surface of the nail pushing block (23); the bent sections of the U-shaped titanium nails (26) are inserted into the strip-shaped nail grooves (24), and two end parts of the U-shaped titanium nails (26) extend into the nail strip-shaped holes (52); a nail pushing slope surface (25) is arranged on the lower side surface of the nail pushing block (23).

3. The laparoscopic surgical stapler of claim 2, wherein: the nail pushing mechanism comprises a nail pushing support plate (28), a nail pushing rod (27), a guide lock rod (36), a guide sliding block (39) and a nail pushing pressure spring (38); a support slope surface (29) for extruding the nail pushing slope surface (25) is arranged at the front side edge of the nail pushing support plate (28); a guide sliding hole (40) is axially arranged in the main rod (1), and a guide sliding block (39) is slidably arranged in the guide sliding hole (40); the rear end of the nail pushing rod (27) penetrates into the guide sliding hole (40) through a nail bin groove (49) and is fixed on the front side surface of the guide sliding block (39); the nail pushing support plate (28) is fixedly arranged on the front end part of the nail pushing rod (27), and the front end of the nail pushing support plate (28) is aligned to the rear end hole opening of the nail pushing rectangular hole (21); a lock rod hole (37) is axially arranged in the rear end of the main rod (1); the guide lock rod (36) is inserted in the lock rod hole (37); the nail pushing compression spring (38) is sleeved on the guide lock rod (36), and the nail pushing compression spring (38) is elastically supported between the rear side surface of the guide sliding block (39) and the rear end surface of the guide sliding hole (40); the locking mechanism is used for locking and releasing control of the guide lock lever (36).

4. The laparoscopic surgical stapler of claim 3, wherein: the locking mechanism comprises a locking pressure rod (8) and a locking pressure spring (9); a bar-shaped guide hole (55) communicated with the lock rod hole (37) is axially arranged on the rod wall at the rear end of the main rod (1); the rear end of the guide lock rod (36) is provided with a side convex strip (13) extending out of the strip-shaped guide hole (55); a toggle convex strip (12) is arranged at the front side of the side convex strip (13), and a locking tooth (11) is arranged at the rear side of the side convex strip (13); the middle part of the locking pressure lever (8) is arranged on the lever wall of the main lever (1) in a swinging way through a pressure lever support (7), and the pressure lever support (7) is positioned at the rear side edge of the strip-shaped guide hole (55); the front end of the locking pressure lever (8) is provided with a buckle tooth (10) which is buckled with the locking tooth (11); the locking compression spring (9) is elastically supported between the rear end of the locking compression rod (8) and the rod wall of the main rod (1) and used for pushing the buckling teeth (10) at the front end of the locking compression rod (8) to buckle the locking teeth (11).

5. The laparoscopic surgical stapler of claim 4, wherein: a protective sleeve head (4) is sleeved on the rear end of the locking pressure rod (8), and the protective sleeve head (4) is supported on the rod wall of the main rod (1); a handle rod (19) is arranged at the tail end of the main rod (1) in an extending way, and an anti-skid convex edge (6) is arranged on the outer wall of the handle rod (19).

6. The laparoscopic surgical stapler of claim 1, wherein: the length edges of two sides of the tangent plane (2) are respectively provided with a strip-shaped pressing groove, and the clamping surface of the clamping rod (3) is provided with an anti-skid rubber strip (20) at the position opposite to the strip-shaped pressing groove.

7. The laparoscopic surgical stapler of claim 1, wherein: the clamping driving mechanism comprises a driving rod (18), a sliding seat (15), a rebound pressure spring (16), an extrusion block (54), a driving screw rod (30) and a knob head (17); a strip-shaped notch (41) is arranged on the main rod (1) and positioned at the rear side edge of the tangent plane (2); a hinge convex strip (44) extends backwards from the rear end of the clamping rod (3), the lower side edge of the hinge convex strip (44) is a chamfered edge, and a push-pull strip-shaped hole (45) is arranged along the chamfered edge; the hinge convex strip (44) is embedded into the strip-shaped notch (41) and is installed on the strip-shaped notch (41) in a swing hinge mode through a hinge short shaft (56) arranged on the side edge; a rectangular mounting groove (14) is arranged on the wall of the tail end rod of the main rod (1), and a transmission hole (53) penetrates between the rectangular mounting groove (14) and the strip-shaped notch (41); the transmission rod (18) is inserted in the transmission hole (53), and the front end of the transmission rod (18) is provided with a U-shaped fork head (42); a push-pull driving shaft (43) is arranged between the fork rods on the two sides of the U-shaped fork head (42), and the push-pull driving shaft (43) penetrates through the push-pull strip-shaped hole (45); the sliding seat (15) is positioned in the rectangular mounting groove (14) and is fixedly arranged at the rear end of the transmission rod (18); the resilience pressure spring (16) is sleeved on the rear end of the transmission rod (18), and the resilience pressure spring (16) is elastically supported between the rectangular mounting groove (14) and the sliding seat (15); one end of the driving screw rod (30) is rotatably arranged at the bottom of the rectangular mounting groove (14), the other end of the driving screw rod (30) extends out of the rectangular mounting groove (14), and the knob head (17) is fixedly arranged on the extending end part of the driving screw rod (30); a driving threaded hole (35) is formed in the extrusion block (54), and the driving screw (30) is screwed in the driving threaded hole (35); a rear side pressing surface (32) is provided on the rear side surface of the sliding seat (15), and a front side pressing surface (31) is provided on the front side of the pressing block (54) and opposite to the rear side pressing surface (32).

8. The laparoscopic surgical stapler of claim 7, wherein: guide strip-shaped grooves (46) are formed in the side groove edges of the length of the two sides of the strip-shaped groove opening (41), and the guide strip-shaped grooves (46) are parallel to the axial direction of the transmission rod (18); two protruding shafts (47) are arranged on the side edge of the front end part of the transmission rod (18), and the end parts of the two protruding shafts (47) are respectively embedded into the guide strip-shaped grooves (46) on the two sides in a sliding manner.

9. The laparoscopic surgical stapler of claim 7, wherein: a strip-shaped support groove (34) which is parallel to the transmission rod (18) is arranged on the groove side of the rectangular mounting groove (14); the side edge of the sliding seat (15) is provided with a supporting slide block (33) which is embedded into the strip-shaped supporting groove (34) in a sliding way.

10. The laparoscopic surgical stapler of claim 1, wherein: rubber extrusion strips (50) for extruding the single-row nail bins are arranged on the side of the side grooves on the length of both sides of the nail bin groove (49); the front end surfaces of the main rod (1) and the clamping rod (3) are both provided with arc-shaped slopes (51).