CN211243531U - A laparoscopic surgical stapler - Google Patents

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

A laparoscopic surgical stapler

technical field

The invention relates to a stapler, especially a stapler for endoscopic surgery.

Background technique

At present, during lung surgery, some parts of the cut lung and other tissues need to be discarded, and can be cut with electric hooks or ultrasonic knives, while the remaining parts need to be sutured firmly, and the buckle titanium clips or ultrasonic knives are unreliable, so suture It is firm, but the space for blood vessels and other parts under the endoscope is small, but the existing slitter is bulky, difficult to operate, and high risk. Therefore, it is necessary to design a laparoscopic surgical stapler, which can only clamp and suture the tissue, so that the front end of the device is small in size. After sutured, the cutting device can be used to cut the excess tissue alone, so as to meet the needs of laparoscopic surgery. .

SUMMARY OF THE INVENTION

The purpose of invention and creation is to provide a stapling device for endoscopic surgery, which can clamp and suture tissue, and the front end of the device is small in size, which can meet the needs of endoscopic surgery.

Technical solution: The endoscopic surgical stapler created by the present invention includes a main rod, a clamping rod, a single row of staple cartridges, a clamping driving mechanism, a nail pushing mechanism and a locking mechanism;

The front end side 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 hingedly installed at the tangent plane, so that the clamping rod swings and presses on the tangent plane; The rod is axially provided with a nail magazine groove, and a single row of nail magazines is placed in the nail magazine groove; the nail pushing mechanism is set in the main rod, which is used to push the U-shaped titanium nails in the single row of nail magazines to the clamping surface of the clamping rod Pushing; strip grooves are arranged at intervals in a single row on the clamping surface of the clamping rod, and the two end surfaces of the strip grooves are set as arc-shaped slopes for extruding and bending both ends of the U-shaped titanium nail The clamping driving mechanism is arranged on the main rod to drive the swing clamping of the clamping rod; the locking mechanism is installed at the tail end of the main rod to lock and release the nail pushing mechanism.

Further, the single-row nail magazine is composed of a bar-shaped housing and each nail-pushing block; a rectangular hole for pushing nails is arranged in the middle of the rear end surface of the bar-shaped housing along the length direction; the upper side of the bar-shaped housing is spaced along the length direction. The nail strip hole is provided, and each nail strip hole is connected with the push nail rectangular hole; on the hole wall of the push nail rectangular hole and below each nail strip hole, there is a lifting limit slot ; Each push nail block is installed in each lifting limit slot, and the thickness of the push nail block is greater than the hole width of the push nail rectangular hole; a strip nail groove is provided on the upper side of the push nail block; the U-shaped titanium nail The bending section is inserted into the strip nail groove, and the two ends of the U-shaped titanium nail protrude into the nail strip-shaped hole; a nail-pushing slope surface is arranged on the lower side of the nail-pushing block.

Further, the push nail mechanism includes a push nail support plate, a push nail rod, a guide lock rod, a guide slider and a push nail compression spring; a support slope for pressing the nail push slope surface is provided on the front side of the push nail support plate There is a guide slide hole in the main rod along the axial direction, and the guide slide block is slidably installed in the guide slide hole; On the front side of the block; the push nail support plate is fixedly installed on the front end of the push nail rod, and the front end of the push nail support plate is facing the rear end hole of the push nail rectangular hole; axially arranged inside the rear end of the main rod There is a lock rod hole; the guide lock rod is inserted into the lock rod hole; the push nail pressure spring is sleeved on the guide lock rod, and the push nail pressure spring is elastically supported between the rear side of the guide slider and the rear end surface of the guide sliding hole The locking mechanism is used to lock and release the guide lock lever.

Further, the locking mechanism includes a locking pressure rod and a locking pressure spring; a bar-shaped guide hole communicated with the locking rod hole is axially provided on the rear end rod wall of the main rod; The side convex strip outside the strip-shaped guide hole is provided; the front side of the side convex strip is provided with a toggle convex strip, and the rear side of the side convex strip is provided with locking teeth; the middle part of the locking pressure rod is supported by the pressure rod The seat is oscillatingly installed on the rod wall of the main rod, and the pressure rod support is located at the rear side of the strip guide hole; the front end of the locking pressure rod is provided with snap teeth for engaging with the locking teeth; The locking pressure spring is elastically supported between the rear end of the locking pressure rod and the rod wall of the main rod, and is used to push the locking teeth at the front end of the locking pressure rod to buckle on the locking teeth.

Further, a protective sleeve head is sleeved on the rear end of the locking pressure rod, and the protective sleeve head is supported on the rod wall of the main rod; a handle rod is extended at the rear end of the main rod, and an anti-slip is provided on the outer wall of the handle rod. Ribs.

Further, a strip-shaped pressing groove is provided on both length edges of the cut surface, and a non-slip rubber strip is provided on the clamping surface of the clamping rod and at a position opposite to the strip-shaped pressing groove.

Further, the clamping driving mechanism includes a transmission rod, a sliding seat, a rebound compression spring, a pressing block, a driving screw and a knob head; a strip-shaped notch is arranged on the main rod and at the rear side of the cut surface; The rear end of the holding rod is provided with a hinged convex strip extending backward, and the lower side of the hinged convex strip is set as a beveled edge, and a push-pull strip hole is set along the beveled edge; the hinged convex strip is embedded in the strip-shaped slot, And it is mounted on the bar-shaped notch by swinging hinged hinged short axis set on the side; a rectangular installation slot is arranged on the rod wall of the rear end of the main pole, and a transmission hole is arranged between the rectangular installation slot and the bar-shaped slot. The transmission rod is inserted into the transmission hole, and a U-shaped fork head is arranged at the front end of the transmission rod; a push-pull drive shaft is arranged between the fork rods on both sides of the U-shaped fork head, and the push-pull drive shaft penetrates the push-pull strip hole; The sliding seat is located in the rectangular installation groove and is fixedly installed on the rear end of the transmission rod; the rebound compression spring is sleeved on the rear end of the transmission rod, and the rebound compression spring is elastically supported between the rectangular installation groove and the sliding seat; One end of the drive screw is rotatably installed at the bottom of the rectangular installation slot, the other end of the drive screw extends out of the rectangular installation slot, and the knob head is fixedly installed on the extended end of the drive screw; the extrusion block is provided with a drive The threaded hole is screwed on the driving threaded hole; the rear side of the sliding seat is provided with a rear side extrusion surface, and the front side of the extrusion block and opposite to the rear side extrusion surface is provided with a front side extrusion surface. Press the surface.

Further, guide strip-shaped grooves are provided on both sides of the strip-shaped slot, and the guide strip-shaped grooves are parallel to the axial direction of the transmission rod; two side edges of the front end of the transmission rod are provided Protruding shafts, and the ends of the two protruding shafts are respectively slidably embedded in the guide strip-shaped grooves on both sides.

Further, a strip-shaped support groove parallel to the transmission rod is provided on the groove edge of the rectangular installation groove; and a support slider embedded in the strip-shaped support groove is provided on the side edge of the sliding seat.

Further, rubber extruding strips for extruding a single row of nail cartridges are provided on the longitudinal side groove edges of both sides of the staple cartridge slot;

Compared with the prior art, the invention has the beneficial effect of using a single row of staple cartridges to be installed in the staple cartridge slot, and realizing single row suture under the pushing action of the staple pushing mechanism, which reduces the number of staplers compared to the existing stapler. The cutting knife part and the suture structure on the other side are used, so that the overall space occupied by the front end is reduced by at least half, which effectively reduces the volume of the front end of the equipment, is more flexible, convenient and safe to use, and meets the needs of small internal space for endoscopic surgery.

Description of drawings

Fig. 1 is the overall structure schematic diagram created by the present invention;

Fig. 2 is the sectional structure schematic diagram created by the present invention;

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

Figure 4 is a schematic diagram of the rear end structure of the clamping rod created by the present invention;

FIG. 5 is a partial cross-sectional structural schematic diagram of the rectangular installation groove created by the present invention.

Detailed ways

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

Example 1:

As shown in Figures 1-5, the endoscopic surgical stapler disclosed by the present invention includes: a main rod 1, a clamping rod 3, a single row of staple cartridges, a clamping driving mechanism, a nail pushing mechanism and a locking mechanism;

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 hingedly installed at the tangential plane 2, so that the clamping rod 3 swings and presses on the tangential plane 2; on the cutting plane 2, a nail magazine groove 49 is arranged axially along the main rod 1, and a single row of nail magazines is placed in the nail magazine groove 49; the nail pushing mechanism is set in the main rod 1, which is used for the single row of nail magazines. The U-shaped titanium nail 26 is pressed to the clamping surface of the clamping rod 3; the clamping surface of the clamping rod 3 is provided with strip-shaped grooves 48 in a single row at intervals, and the two end surfaces of the strip-shaped grooves 48 are set as It is used to squeeze and bend the arc-shaped slope of the two ends of the U-shaped titanium nail 26; the clamping driving mechanism is arranged on the main rod 1 to drive the swing clamping of the clamping rod 3; the locking mechanism is installed on the main rod 1. The tail end of rod 1 is used to lock and release the nail push mechanism.

The single-row staple cartridge is installed in the staple cartridge slot 49, and the single-row suture is realized under the pushing action of the staple pushing mechanism. Compared with the existing stapler, the cutting part and the suture structure on the other side are reduced, so that the front end is integrally It occupies a small space, effectively reduces the volume of the front end of the equipment, and meets the needs of small internal space in endoscopic surgery; the clamping rod 3 is used to swing and then press on the cutting plane 2, so as to stably clamp the tissue, and it is convenient to use a row of U Shaped titanium staples 26 for suture.

Further, the single-row nail magazine is composed of a bar-shaped housing 5 and each nail-pushing block 23 ; a rectangular hole 21 for pushing nails is provided in the middle of the rear end surface of the bar-shaped housing 5 along the length direction; on the upper side of the bar-shaped housing 5 The nail strip holes 52 are arranged at intervals along the length direction, and each nail strip hole 52 is connected with the push nail rectangular hole 21; the nail strip hole 52 corresponds to each strip groove 48; On the hole wall of the nail rectangular hole 21 and below each nail strip-shaped hole 52 are provided lifting limit slots 22; each nail push block 23 is respectively installed in each lift limit groove 22, and the The thickness is greater than the hole width of the push nail rectangular hole 21; a strip nail groove 24 is provided on the upper side of the push nail block 23; the bent section of the U-shaped titanium nail 26 is inserted into the strip nail groove 24, and the U-shaped titanium nail 26 The two ends of the nails extend into the nail strip-shaped holes 52 ; the nail pushing ramp surface 25 is provided on the lower side of the nail pushing block 23 .

The thickness of the push nail block 23 is set to be larger than the hole width of the push nail rectangular hole 21, so that there will be no dislocation during the lifting process. In cooperation, the lifting and lowering process of the nail pushing block 23 is relatively stable, so that the U-shaped titanium nails 26 can be smoothly raised, and the success rate of one-time suture is ensured.

Further, the nail push mechanism includes a nail push support plate 28, a nail push rod 27, a guide lock rod 36, a guide slider 39 and a nail push pressure spring 38; The support ramp surface 29 of the nail ramp surface 25; the main rod 1 is provided with a guide sliding hole 40 along the axial direction, and the guide sliding block 39 is slidably installed in the guide sliding hole 40; 49 penetrates into the guide sliding hole 40 and is fixed on the front side of the guide slider 39; the push nail support plate 28 is fixedly installed on the front end of the push nail rod 27, and the front end of the push nail support plate 28 is facing the push The rear end hole of the nail rectangular hole 21; the inner rear end of the main rod 1 is provided with a lock rod hole 37 along the axial direction; the guide lock rod 36 is inserted into the lock rod hole 37; the nail push spring 38 is sleeved on the guide lock The locking mechanism is used to lock and release the guide locking rod 36 . Using the supporting ramp surface 29 and the nail pushing ramp surface 25 to cooperate and squeeze, the nail pushing block 23 can be moved upward along the lifting limit groove 22; the nail pushing pressure spring 38 can make the push nail support plate after the guide lock lever 36 is released. 28 moves forward rapidly, thereby pushing the nail push block 23 to rise, and a row of U-shaped titanium nails 26 is used to suture the clamped tissue.

Further, the locking mechanism includes a locking pressure rod 8 and a locking pressure spring 9; a bar-shaped guide hole 55 that communicates with the lock rod hole 37 is axially provided on the rear end rod wall of the main rod 1; The rear end is provided with a side protruding strip 13 extending out of the bar-shaped guide hole 55; Tooth 11; the middle of the locking pressure rod 8 is swing-mounted on the rod wall of the main rod 1 through the pressure rod support 7, and the pressure rod support 7 is located at the rear side of the strip guide hole 55; in the locking pressure rod 8 The front end is provided with snap teeth 10 for engaging with the locking teeth 11; the locking pressure spring 9 is elastically supported between the rear end of the locking pressure rod 8 and the rod wall of the main rod 1, and is used to push the locking pressure rod 8. The snap teeth 10 at the front end are buckled on the locking teeth 11. Using the toggle protruding strip 12 can facilitate the manual pulling of the guide locking rod 36 backward, so that the locking teeth 11 are engaged with the buckle teeth 10 to complete the locking of the guide locking rod 36; the locking pressure rod can be pushed by the locking pressure spring 9 The rear end of the 8 swings outward, so that the locking teeth 11 at the front end are firmly engaged with the buckle teeth 10; the side protruding strips 13 are used to extend out of the bar-shaped guide holes 55, which can limit the rotation of the guide locking rod 36 and ensure that the front end The push nail support plate 28 remains stable when pushing nails.

Further, 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 extended at the rear end of the main rod 1, and the handle The outer wall of the rod 19 is provided with an anti-slip rib 6 . The rear end of the locking pressure rod 8 can be supported by the protective sleeve head 4 to prevent the locking pressure rod 8 from being accidentally pressed during use and the guide lock rod 36 is released; performance.

Further, a strip-shaped pressing groove is provided on both length edges of the cutting surface 2 , and a non-slip rubber strip 20 is provided on the clamping surface of the clamping rod 3 and at a position opposite to the strip-shaped pressing groove. The combination of the strip-shaped pressing groove and the anti-skid rubber strip 20 can ensure the anti-skid performance during clamping.

Further, the clamping driving mechanism includes a transmission rod 18, a sliding seat 15, a rebound compression spring 16, a pressing block 54, a driving screw 30 and a knob head 17; There is a bar-shaped slot 41; the rear end of the clamping rod 3 is provided with a hinged protruding strip 44 extending backward, and the lower side of the hinged protruding strip 44 is set as a chamfered edge, and a push-pull strip is set along the chamfered edge The hinged protruding strip 44 is embedded in the bar-shaped slot 41, and is pivotally mounted on the bar-shaped slot 41 through the hinged short shaft 56 provided on the side; The rectangular installation slot 14 is provided with a transmission hole 53 between the rectangular installation slot 14 and the bar-shaped slot 41; the transmission rod 18 is inserted into the transmission hole 53, and a U-shaped fork 42 is provided at the front end of the transmission rod 18 ; A push-pull drive shaft 43 is provided between the fork rods on both sides of the U-shaped fork 42, and the push-pull drive shaft 43 runs through the push-pull strip hole 45; On the rear end of the drive rod 16; 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 mounted on the rectangular At the bottom of the installation groove 14, the other end of the driving screw 30 protrudes out of the rectangular installation groove 14, and the knob head 17 is fixedly installed on the extended end of the driving screw 30; the extrusion block 54 is provided with a driving screw hole 35 , the driving screw 30 is screwed on the driving threaded hole 35; the rear side pressing surface 32 is provided on the rear side of the sliding seat 15, and the front side of the pressing block 54 is opposite to the rear side pressing surface 32. There is a front pressing surface 31 . Using the cooperation of the push-pull strip hole 45 and the push-pull drive shaft 43, when the U-shaped fork 42 at the front end of the transmission rod 18 moves forward, the rear end of the hinged protruding strip 44 is pressed and pushed to swing outward, so that the front end of the clamping rod 3 faces the tangential plane. 2. Clamping, when the U-shaped fork 42 at the front end of the transmission rod 18 moves backwards, pull the rear end of the hinged protruding strip 44 to swing inward, so that the front end of the clamping rod 3 releases the clamping; When moving into the rectangular installation groove 14, the sliding seat 15 is moved backward in time, so that the transmission rod 18 is moved backward in time.

Further, guide bar-shaped grooves 46 are provided on both side length sides of the bar-shaped slot 41, and the guide bar-shaped grooves 46 are parallel to the axial direction of the transmission rod 18; on the front end side of the transmission rod 18 There are two protruding shafts 47 on the sides, and the ends of the two protruding shafts 47 are respectively slidably embedded in the guide strip-shaped grooves 46 on both sides. With the cooperation of the protruding shaft 47 and the guide strip groove 46, the front end of the transmission rod 18 can be stably supported, and the front end will not be bent when pushing and pulling.

Further, a bar-shaped support groove 34 parallel to the transmission rod 18 is provided on the groove edge of the rectangular installation groove 14; 33. The smooth sliding of the sliding seat 15 can be realized by the cooperation of the strip-shaped supporting groove 34 and the supporting sliding block 33 , and the rear end of the transmission rod 18 will not be bent under the pressing of the pressing block 54 .

Further, rubber extrusion strips 50 for extruding a single row of nail magazines are provided on both sides of the nail magazine groove 49 on the length side groove edges; the front end surfaces of the main rod 1 and the clamping rod 3 are both set as arc-shaped slopes. face 51. The elastic clamping and fixing of a single row of staple cartridges can be realized by using the rubber extrusion strip 50 ; the insertion into the cavity of the endoscope can be facilitated by using the arc-shaped slope surface 51 .

When the laparoscopic surgical stapler disclosed in the present invention is in use, a single row of staple cartridges is pressed into the staple cartridge slot 49, and the rubber extruding strips 50 on both sides clamp and fix the bar-shaped housing 5; When the mirror hole is opened, the pressing block 54 is moved outward by rotating the knob head 17 in the positive direction, and the sliding seat 15 is pressed and pushed forward, and the clamping rod 3 is pressed on the cut surface 2, so as to facilitate the insertion into the endoscope hole; When holding the tissue to be held, firstly rotate the knob head 17 in the opposite direction, and use the resilient compression spring 16 to push the sliding seat 15 to move backward, so that the transmission rod 18 moves backward and pulls the front end of the clamping rod 3 to lift up, thereby opening a clamp. Hold the angle, which is convenient for clamping the tissue to be sutured, and then rotate the knob head 17 in the positive direction to make the clamping rod 3 swing toward the cutting plane 2, so that the tissue to be sutured is stably clamped; when sutured, first remove the protective sleeve head 4, press The rear end of the locking lever 8 separates the locking teeth 11 from the locking teeth 10, so that the guide slider 39, the push rod 27 and the push support plate 28 are pushed forward rapidly by the push spring 38, The nail supporting plate 28 and the supporting ramp surface 29 push each U-shaped titanium nail 26 out of the nail strip hole 52, and the two ends of the U-shaped titanium nail 26 pass through the tissue and are bent in the strip groove 48 to complete the suture; After suturing, the clamping rod 3 is released again to release the clamped tissue, and then the clamping rod 3 is clamped, so that the main rod 1 can be easily pulled out from the endoscope hole.

As mentioned above, although the invention has been shown and described with reference to specific preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

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).

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