Double squeezing structure of electric linear cutting stapler for laparoscopy

Abstract

The present invention provides a double squeezing structure of an electric linear cutting stapler for laparoscopy, comprising: a support shaft arranged on an outer shell, a closing locking groove is arranged on a closing lock plate; a closing handle is sleeved on the support shaft, and a closing positioning piece is arranged at the lower end of the closing handle; an outer tube locking plate is arranged in an inner shell, the outer tube locking plate is hinged with a closing connecting rod, and the closing connecting rod is hinged with a closing handle; an outer sleeve is connected with the outer tube locking plate; a spring is sleeved on the outer sleeve; the outer sleeve is connected with a steering sleeve; a nail magazine receiving groove is arranged on the base of the nail magazine; a nail support is located above the base of the nail magazine; a nail support receiving groove is arranged on the nail support; a cutting knife is inserted into the interior of the outer sleeve; and the rear end of the cutting knife is connected with a driving component. The present invention can realize double squeezing of tissues, and the first pre-squeezing before the second squeezing and suturing and cutting of tissues can fully discharge the tissue fluid in the squeezed target tissue to the peripheral tissue, so that the anastomosis effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of staplers, and in particular to a double squeezing structure of an electric linear cutting stapler for laparoscope. Background Art

[0002] The stapler is a medical device that replaces manual suturing. The existing electric linear cutting stapler needs to squeeze human tissue during use. Generally, the electric linear cutting stapler only squeezes human tissue once. How to design an electric linear cutting stapler with a simple structure and capable of squeezing human tissue twice is a problem that technicians in this field need to solve. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a double squeezing structure of a laparoscopic electric linear cutting stapler capable of performing two squeezing operations, so as to solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides a double squeezing structure of a laparoscope electric linear cutting stapler, the laparoscope electric linear cutting stapler comprising a housing; the housing comprising an outer shell and an inner shell disposed inside the outer shell; the double squeezing structure is disposed on the housing; the double squeezing structure comprises:

[0005] A support shaft is arranged on the housing;

[0006] A closing lock plate, disposed at the lower portion of the housing, wherein a closing lock groove is provided on the closing lock plate;

[0007] A closing handle, which is sleeved on the support shaft, and the closing handle can rotate relative to the support shaft, and a closing positioning piece is provided at the lower end of the closing handle;

[0008] An outer tube lock plate is arranged in the inner shell, a rear end of the outer tube lock plate is hinged to one end of a closing link, and the other end of the closing link is hinged to the upper end of the closing handle;

[0009] An outer tube, the rear end of which penetrates into the inner shell and is connected to the outer tube locking plate; a spring is sleeved on the outer tube, and the spring is located between the inner shell and the front end of the outer tube locking plate;

[0010] A steering sleeve, the front end of the outer sleeve is connected to the steering sleeve through a sleeve connecting piece;

[0011] A nail magazine base is arranged inside the steering sleeve, and a nail magazine receiving groove is provided on the nail magazine base;

[0012] The anvil is arranged inside the steering sleeve and connected to the steering sleeve; the anvil is located above the nail magazine base and is movably connected to the nail magazine base; the anvil is provided with a nail seat receiving groove;

[0013] A cutting knife is inserted into the inner part of the outer sleeve, and an upper boss and a lower boss are provided at the front end of the cutting knife; a driving component is connected to the rear end of the cutting knife, and the driving component drives the cutting knife to move along the front-rear direction of the shell;

[0014] When the nail support seat and the nail magazine base are closed, the cutting knife is driven to move forward, and the upper boss of the cutting knife is inserted into the receiving groove of the nail seat, and the upper boss can move forward in the receiving groove of the nail seat, and the lower boss of the cutting knife is inserted into the receiving groove of the nail magazine, and the lower boss can move forward in the receiving groove of the nail magazine, so that the nail support seat and the base of the nail magazine move in the direction of closing together.

[0015] Preferably, the notch of the closed locking groove faces rearward, and the closed positioning member is a positioning shaft; the closed locking groove is for the positioning shaft to be inserted.

[0016] Preferably, the length direction of the nail seat receiving groove and the length direction of the nail magazine receiving groove are both in the same direction as the front-rear direction of the shell.

[0017] Preferably, a guide channel is provided in the inner shell, and the length direction of the guide channel is in the same direction as the front-to-back direction of the shell; the outer tube locking plate is arranged in the guide channel and can move along the length direction of the guide channel; the length direction of the guide channel is in the same direction as the length direction of the shell.

[0018] Preferably, a guide groove is provided on the base of the nail magazine, and the guide groove is an arc-shaped structure; a clamping groove is provided on the top of the nail support seat, and a sliding block is provided on the side of the nail support seat, and the sliding block is inserted into the guide groove; a buckle is provided on the steering sleeve, and the buckle is inserted into the clamping groove.

[0019] Preferably, the driving component includes a firing knob, a firing contact switch, a transmission component, a motor and a screw rod; the firing knob is movably mounted on the shell, and the firing knob can rotate relative to the shell; the firing contact switch is located inside the shell, and the firing contact switch is located on the rotation path of the firing knob; the motor is arranged inside the shell; the output end of the motor is connected to the transmission component, the transmission component is connected to the screw rod, the transmission component drives the screw rod to move along the front and rear direction of the shell, and the screw rod is connected to the cutting knife; the motor and the firing contact switch are both connected to the controller.

[0020] Preferably, a battery accommodating cavity for placing a battery pack is provided at the rear end of the shell, and a rear cover is provided on the battery accommodating cavity, and the rear cover is detachably connected to the rear end of the shell.

[0021] Furthermore, a connecting shaft is provided on one side of the rear end of the housing, the rear cover is connected to the connecting shaft, and the rear cover can rotate along the connecting shaft;

[0022] A shell buckle is provided on the other side of the rear end of the shell, and a cover buckle that can be engaged with the shell buckle is provided on the back cover. A cover button is provided on the cover buckle, and the cover button is located on the outside of the back cover. When the cover button is pressed, the cover button pushes the cover buckle to move, and the cover buckle is separated from the shell buckle.

[0023] As described above, the double squeezing structure of the laparoscopic electric linear cutting stapler of the present invention has the following beneficial effects:

[0024] When the double squeezing structure of the electric linear cutting stapler for laparoscopy of the present invention is used, the closing handle is pressed so that the closing positioning piece at the lower end of the closing handle is inserted into the closing locking groove of the closing locking plate, and then the closing handle is released, and the closing handle is locked by the closing locking plate; the closing handle pushes the outer tube locking plate forward through the closing connecting rod, and the outer tube locking plate drives the outer sleeve forward, and the outer sleeve pushes the steering sleeve forward through the sleeve connecting piece, and the steering sleeve drives the nail anvil to rotate in the direction of closing with the nail magazine base, and the nail anvil and the nail magazine base are closed, and the first squeezing of the tissue by the nail anvil is completed at this time; the nail anvil and the nail magazine base are closed. Afterwards, the driving component drives the cutting knife to move forward, the upper boss of the cutting knife is inserted into the receiving groove of the nail seat, the upper boss of the cutting knife moves forward in the receiving groove of the nail seat, the lower boss of the cutting knife is inserted into the receiving groove of the nail magazine, and the lower boss of the cutting knife moves forward in the receiving groove of the nail magazine, so that the nail support and the base of the nail magazine move in the direction of closing together, and at this time, the second squeezing of the tissue by the nail support is realized; the present invention can realize double squeezing of the tissue, and the first pre-squeezing before the second squeezing and suturing and cutting of the tissue can make the tissue fluid in the squeezed target tissue fully discharged to the peripheral tissue, so that the anastomosis effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment.

[0026] Figure 2 Display as Figure 1 Schematic diagram of the enlarged structure at A.

[0027] Figure 3It is a schematic structural diagram showing the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment when a housing is not provided and the closing positioning member exits the closing locking groove.

[0028] Figure 4 Display as Figure 3 Schematic diagram of the enlarged structure at B.

[0029] Figure 5 It is a schematic structural diagram showing the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment when a housing is not provided and a closing positioning member is inserted into a closing locking groove.

[0030] Figure 6 Display as Figure 5 Schematic diagram of the enlarged structure at C.

[0031] Figure 7 It is a schematic diagram of the internal side structure of the laparoscopic electric linear cutting stapler when the closing positioning piece of the double squeezing structure is inserted into the closing locking groove of the embodiment.

[0032] Figure 8 Display as Figure 7 Schematic diagram of the enlarged structure at D.

[0033] Fig. 9 It is a schematic diagram of the internal three-dimensional structure of the laparoscopic electric linear cutting stapler of this embodiment when the closing positioning piece of the double squeezing structure is inserted into the closing locking groove.

[0034] Fig.10 It is a schematic diagram of the enlarged structure of the connection between the closing link and the outer tube locking plate when the closing positioning piece of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment is inserted into the closing locking groove.

[0035] Fig.11 It is a schematic structural diagram of the connection between the outer sleeve and the steering sleeve when the closing positioning piece of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment is inserted into the closing locking groove.

[0036] Fig.12 It is a schematic structural diagram showing the buckle of the steering sleeve of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment being snapped into the slot of the anvil.

[0037] Fig.13 Shown is a schematic structural diagram of the anvil seat of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment.

[0038] Fig.14 It is a schematic structural diagram of the steering sleeve of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment.

[0039] Fig.15 It is a schematic diagram of the three-dimensional structure of the double-squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment when the closing positioning piece exits the closing locking groove.

[0040] Fig.16 It is a schematic diagram of the enlarged structure of the connection between the closing link and the outer tube locking plate when the closing positioning piece of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment exits the closing locking groove.

[0041] Fig.17 It is a schematic diagram of the enlarged structure showing that the stapler seat and the stapler magazine base are not closed when the closing positioning piece of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment exits the closing locking groove.

[0042] Fig.18 It is a schematic diagram of the front exploded structure of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment.

[0043] Fig.19 Display as Fig.18 Schematic diagram of the structure at E.

[0044] Fig. 20 It is a schematic diagram of the upper structure of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment when the outer sleeve is not provided.

[0045] Fig.21 Display as Fig. 20 Schematic diagram of the structure at F.

[0046] Fig. 22 It is a schematic diagram of the lower structure of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment when the outer sleeve is not provided.

[0047] Fig.23 Display as Fig. 22 Schematic diagram of the structure at G.

[0048] Fig.24 It is a schematic diagram of the exploded structure of the swing driving component and the rotating handle of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment.

[0049] Fig.25 Display as Fig.24 Schematic diagram of the structure at H.

[0050] Fig.26 Display as Fig.25 Schematic diagram of the structure at I

[0051] Fig. 27Shown is a schematic diagram of the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment under the control of a controller.

[0052] Fig.28 The schematic diagram of the top view of the structure of the rear cover provided at the rear end of the housing of the laparoscopic electric linear cutting stapler of this embodiment is shown.

[0053] Fig.29 Display as Fig.28 Schematic diagram of the enlarged structure at J.

[0054] Fig.30 It is a schematic diagram showing the structure of the laparoscopic electric linear cutting stapler of this embodiment when the rear cover is opened and the battery pack is placed in the battery receiving chamber.

[0055] Fig.31 Display as Fig.30 Schematic diagram of the enlarged structure at K.

[0056] Fig.32 It is a schematic diagram showing the structure of the laparoscopic electric linear cutting stapler of this embodiment when the rear cover is open and no battery pack is placed in the battery receiving chamber.

[0057] Fig.33 Display as Fig.32 Schematic diagram of the enlarged structure at L.

[0058] Description of Figure Numbers

[0059] 100 Shell

[0060] 110 Housing

[0061] 111 Battery compartment

[0062] 112 Connecting shaft

[0063] 113 Shell buckle

[0064] 120 Inner shell

[0065] 121 Guide Channel

[0066] 210 Support shaft

[0067] 220 Closed lock plate

[0068] 221 Closed locking slot

[0069] 230 Closed handle

[0070] 231 Closure Positioner

[0071] 232 handle body

[0072] 233 Handle upper flange

[0073] 234 Handle tail plate

[0074] 240 outer tube lock plate

[0075] 250 Closed connecting rod

[0076] 310 Outer sleeve

[0077] 311 Pipe axial channel

[0078] 312 Outer tube groove

[0079] 320 Spring

[0080] 330 Steering Bushing

[0081] 331 Buckle

[0082] 340 Casing connector

[0083] 410 nail box base

[0084] 411 nail magazine receiving slot

[0085] 412 Guide groove

[0086] 420 Anchor

[0087] 421 nail seat receiving groove

[0088] 422 Card Slot

[0089] 423 Slider

[0090] 500 Cutting Knife

[0091] 510 upper boss

[0092] 520 Lower boss

[0093] 600 Drive components

[0094] 610 Firing Knob

[0095] 620 Firing contact switch

[0096] 630 Transmission parts

[0097] 631 Driving gear

[0098] 632 Driven gear

[0099] 640 Motor

[0100] 650 Screw

[0101] 660 Controller

[0102] 710 Rotating handle

[0103] 711 Clamping part

[0104] 720 Support rod

[0105] 721 Clamping part

[0106] 722 Rod receiving groove

[0107] 730 Upper support

[0108] 731 Upper protrusion

[0109] 732 Upper steering receiving hole

[0110] 740 Lower support

[0111] 741 Lower protrusion

[0112] 742 Lower steering receiving hole

[0113] 750 Steering tie rod

[0114] 761 Upper steering joint

[0115] 762 Lower steering joint

[0116] 763 Shaft

[0117] 800 Swing drive components

[0118] 10 Battery Pack

[0119] 900 Back Cover

[0120] 910 Cover Buckle

[0121] 920 Cover Button

[0122] 930 Shrapnel DETAILED DESCRIPTION

[0123] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0124] Please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0125] In the following description, the front-to-back direction of the housing 100 refers to the Figure 7 The left-right direction of the paper and the up-down direction of the housing 100 refer to the left-right direction of the paper and the up-down direction of the housing 100 relative to the Figure 7 The up and down direction of the paper.

[0126] like Figures 1 to 33 As shown, the double squeezing structure of the laparoscopic electric linear cutting stapler of this embodiment comprises a housing 100; the housing 100 comprises an outer shell 110 and an inner shell 120 disposed inside the outer shell 110; the double squeezing structure is disposed on the housing 100; the double squeezing structure comprises:

[0127] A support shaft 210 is disposed on the housing 110;

[0128] A closing lock plate 220 is disposed at the lower portion of the housing 110 , and a closing lock groove 221 is provided on the closing lock plate 220 ;

[0129] A closing handle 230 is sleeved on the support shaft 210. The closing handle 230 can rotate relative to the support shaft 210. A closing positioning member 231 is provided at the lower end of the closing handle 230.

[0130] The outer tube lock plate 240 is disposed in the inner shell 120, the rear end of the outer tube lock plate 240 is hinged to one end of the closing link 250, and the other end of the closing link 250 is hinged to the upper end of the closing handle 230;

[0131] An outer sleeve 310, the rear end of which penetrates into the inner shell 120 and is connected to the outer tube locking plate 240; a spring 320 is sleeved on the outer sleeve 310, and the spring 320 is located between the inner shell 120 and the front end of the outer tube locking plate 240;

[0132] A steering sleeve 330, wherein the front end of the outer sleeve 310 is connected to the steering sleeve 330 via a sleeve connecting piece 340;

[0133] The nail magazine base 410 is disposed inside the steering sleeve 330 , and a nail magazine receiving groove 411 is provided on the nail magazine base 410 ;

[0134] The anvil seat 420 is disposed inside the steering sleeve 330 and connected to the steering sleeve 330; the anvil seat 420 is located above the nail magazine base 410, and the anvil seat 420 is movably connected to the nail magazine base 410; the anvil seat 420 is provided with a nail seat receiving groove 421;

[0135] The cutting knife 500 is inserted into the inner part of the outer sleeve 310, and the front end of the cutting knife 500 is provided with an upper boss 510 and a lower boss 520; the rear end of the cutting knife 500 is connected to the driving component 600, and the driving component 600 is used to drive the cutting knife 500 to move along the front-back direction of the housing 100;

[0136] When the nail support 420 and the nail magazine base 410 are closed, the cutting knife 500 is driven to move forward, and the upper boss 510 of the cutting knife 500 is inserted into the nail support receiving groove 421, and the upper boss 510 can move forward in the nail support receiving groove 421, and the lower boss 520 of the cutting knife 500 is inserted into the nail magazine receiving groove 411, and the lower boss 520 can move forward in the nail magazine receiving groove 411, so that the nail support 420 and the nail magazine base 410 move in the direction of closing together.

[0137] When the double squeezing structure of the electric linear cutting stapler for laparoscopy of the present invention is used, the closing handle 230 is pressed before cutting and anastomosis, so that the closing positioning piece 231 at the lower end of the closing handle 230 is inserted into the closing locking groove 221 of the closing locking plate 220, and then the closing handle 230 is released, and the closing handle 230 is locked by the closing locking plate 220; the closing handle 230 pushes the outer tube locking plate 240 to move forward through the closing connecting rod 250, and the outer tube locking plate 240 drives the outer sleeve 310 to move forward, and the outer sleeve 310 pushes the steering sleeve 330 to move forward through the sleeve connecting piece 340, and the steering sleeve 330 drives the nail support 420 to rotate in the direction of closing with the nail magazine base 410, and the nail support 420 and the nail magazine base 410 are closed, and the double squeezing structure completes the first squeezing of the tissue by the nail support 420;

[0138] During cutting and anastomosis, the driving component 600 drives the cutting knife 500 to move forward to cut the tissue. At this time, the upper boss 510 of the cutting knife 500 is inserted into the nail seat receiving groove 421, and the upper boss 510 of the cutting knife 500 moves forward in the nail seat receiving groove 421. The lower boss 520 of the cutting knife 500 is inserted into the nail magazine receiving groove 411, and the lower boss 520 of the cutting knife 500 moves forward in the nail magazine receiving groove 411, so that the nail support 420 and the nail magazine base 410 move in a direction of closing with each other, and the double squeezing structure completes the second squeezing of the tissue by the nail support 420;

[0139] After the cutting and anastomosis is completed, the driving component 600 drives the cutting knife 500 to move backward, and the cutting knife 500 returns to the initial position; the closing handle 230 is pressed and then released, and due to the restoring force of the spring 320, the closing handle 230 returns to the initial position, and the closing positioning member 231 of the closing handle 230 withdraws from the closing locking groove 221 of the closing locking plate 220.

[0140] The present invention can realize double squeezing of tissues. The first pre-squeezing before the second squeezing and suturing and cutting of tissues can fully discharge tissue fluid in the squeezed target tissue to the peripheral tissue, so that the anastomosis effect is better.

[0141] The notch of the closed locking groove 221 faces backward, and the closed positioning member 231 is a positioning shaft; the closed locking groove 221 is for the positioning shaft to be inserted. This structure facilitates the insertion and withdrawal of the closed positioning member 231, and the closed locking groove 221 can stably support the inserted closed positioning member 231.

[0142] The length direction of the nail seat receiving groove 421 and the length direction of the nail magazine receiving groove 411 are both in the same direction as the front-rear direction of the housing 100. The upper boss 510 moves along the length direction of the nail seat receiving groove 421, and the lower boss 520 moves along the length direction of the nail magazine receiving groove 411, so that the double pressing structure completes the second compression of the nail seat 420 on the tissue.

[0143] The inner shell 120 is provided with a guide channel 121, the length direction of which is in the same direction as the front-rear direction of the shell 100; the outer tube lock plate 240 is arranged in the guide channel 121 and can move along the length direction of the guide channel 121, the length direction of which is in the same direction as the length direction of the shell 100. The guide channel 121 realizes a guiding function, so that the outer tube lock plate 240 drives the outer tube 310 to move along the front-rear direction of the shell 100.

[0144] The closing handle 230 includes a handle body 232, the upper end of the handle body 232 is provided with a handle upper flange 233, the lower end of the handle body 232 is provided with a handle tail plate 234, the handle upper flange 233 extends forward, the handle tail plate 234 extends backward, and the closing positioning member 231 is arranged on the handle tail plate 234. The closing positioning member 231 is arranged on the handle tail plate 234, so as to facilitate the closing positioning member 231 to be inserted into the closing locking groove 221. In this embodiment, when the closing positioning member 231 is inserted into the closing locking groove 221, the handle body 232 pushes the closing link 250 through the handle upper flange 233, and the closing link 250 pushes the outer tube lock plate 240 to move forward; when the closing positioning member 231 withdraws from the closing locking groove 221, the restoring force of the spring 320 pushes the outer tube lock plate 240 to move backward, and the outer tube lock plate 240 drives the closing link 250 and the handle body 232 to return to the initial position during the backward movement.

[0145] The nail magazine base 410 is provided with a guide groove 412, which is an arc-shaped structure; the top of the nail anvil 420 is provided with a slot 422, and the side of the nail anvil 420 is provided with a slider 423, which is inserted into the guide groove 412; the steering sleeve 330 is provided with a buckle 331, which is inserted into the slot 422. The outer sleeve 310 pushes the steering sleeve 330 forward through the sleeve connecting piece 340, and the steering sleeve 330 pushes the nail anvil 420, so that the slider 423 of the nail anvil 420 slides along the guide groove 412, and the nail anvil 420 rotates in the direction of closing with the nail magazine base 410.

[0146] The driving component 600 includes a firing knob 610, a firing contact switch 620, a transmission component 630, a motor 640 and a screw rod 650; the firing knob 610 is movably mounted on the housing 110, and the firing knob 610 can rotate relative to the housing 110; the firing contact switch 620 is located inside the housing 110, and the firing contact switch 620 is located on the rotation path of the firing knob 610; the motor 640 is arranged inside the housing 110; the output end of the motor 640 is connected to the transmission component 630, the transmission component 630 is connected to the screw rod 650, the transmission component 630 drives the screw rod 650 to move along the front and rear direction of the shell 100, and the screw rod 650 is connected to the cutting knife 500; the motor 640 and the firing contact switch 620 are both connected to the controller 660.

[0147] The firing knob 610 is rotated, and the firing knob 610 touches the firing contact switch 620, and the firing contact switch 620 sends a firing signal to the controller 660. The controller 660 drives the motor 640, and the motor 640 drives the screw rod 650 to move along the front and rear direction of the shell 100 through the transmission component 630, so that the screw rod 650 can drive the cutting knife 500 to move.

[0148] The transmission component 630 is arranged inside the housing 110, and includes a driving gear 631 and a driven gear 632; the output end of the motor 640 is connected to the driving gear 631; the driving gear 631 and the driven gear 632 are both rotatable; the driving gear 631 is meshed with the driven gear 632; the central axis of the driving gear 631 is perpendicular to the central axis of the driven gear 632; the central axis of the driving gear 631 is perpendicular to the front-rear direction of the housing 100; a threaded hole is provided on the driven gear 632; and the screw rod 650 is connected to the threaded hole. The motor 640 drives the driving gear 631 to rotate, the driving gear 631 drives the driven gear 632 to rotate, and the driven gear 632 drives the screw rod 650 to move. The transmission component 630 has a simple structure and is easy to transmit.

[0149] The electric linear cutting stapler for laparoscopy also includes:

[0150] The rotating handle 710 is mounted on the housing 110. Two opposite clamping parts 711 are provided inside the rotating handle 710. The outer sleeve 310 is inserted into the rotating handle 710. The outer sleeve 310 is provided with a pipe axial passage 311. Two oppositely arranged outer tube grooves 312 are provided on the outer surface of the outer sleeve 310. Each outer tube groove 312 has a groove bottom through hole 313 on the groove bottom surface. Each groove bottom through hole 313 is connected to the pipe axial passage 311. The two clamping parts 711 clamp the outer sleeve 310.

[0151] The support rod 720 is inserted into the inner part of the outer sleeve 310. Two oppositely arranged receiving clamping parts 721 are provided on the outer side of the support rod 720. The two receiving clamping parts 721 pass through the two groove bottom through holes 313 respectively. The two receiving clamping parts 721 are inserted between the two clamping parts 711, and the two clamping parts 711 clamp the support rod 720. A rod receiving groove 722 is also provided on the outer side of the support rod 720. The rod receiving groove 722 extends to the front end of the support rod 720.

[0152] The upper support member 730 and the lower support member 740 are both located in the axial passage 311 of the outer sleeve 310. The rear ends of the upper support member 730 and the rear ends of the lower support member 740 are both connected to the front end of the support rod 720. The front end of the upper support member 730 is provided with an upper protruding member 731, and the front end of the lower support member 740 is provided with a lower protruding member 741. The front end of the upper protruding member 731 is provided with an upper steering receiving hole 732, and the front end of the lower protruding member 741 is provided with a lower steering receiving hole 742.

[0153] The steering rod 750, the rear end of which extends into the rod receiving groove 722, and the steering rod 750 is located between the upper support member 730 and the lower support member 740; the side of the front end of the steering rod 750 is connected to the rotating shaft 763, the upper end of the rotating shaft 763 penetrates into the upper steering receiving hole 732, and the lower end of the rotating shaft 763 penetrates into the lower steering receiving hole 742; the rear end of the steering rod 750 is connected to the swing driving component 800, and the swing driving component 800 penetrates out of the rotating handle 710;

[0154] The upper steering joint 761 and the lower steering joint 762 are fixedly connected, and both the upper steering joint 761 and the lower steering joint 762 are fixedly connected to the rotating shaft 763; the nail magazine base 410 is connected to the lower steering joint 762. This structure allows the nail magazine base 410 to be stably arranged inside the steering sleeve 330.

[0155] The two clamping parts 711 of the rotating handle 710 clamp the outer sleeve 310 and the support rod 720, the upper support member 730 and the lower support member 740 are both connected to the support rod 720, the upper steering joint 761 and the lower steering joint 762 are both connected to the rotating shaft 763, the rotating shaft 763 passes through the upper protruding member 731 on the upper support member 730, and the rotating shaft 763 passes through the lower protruding member 741 on the lower support member 740; the nail magazine base 410 is connected to the lower steering joint 762, and the front of the outer sleeve 310 is connected to the lower support member 740. The end is connected to the steering sleeve 330 through the sleeve connecting piece 340. When the rotating handle 710 rotates 360 degrees around the central axis of the outer sleeve 310, the rotating handle 710 drives the outer sleeve 310 and the support rod 720 to rotate at the same time, the support rod 720 drives the upper support member 730 and the lower support member 740 to rotate, the upper support member 730 drives the upper steering joint 761 and the lower steering joint 762 to rotate through the upper protrusion 731, and the lower steering joint 762 drives the steering sleeve 330 to rotate.

[0156] The rear end of the housing 110 is provided with a battery receiving chamber 111 for placing the battery pack 10, and the battery receiving chamber 111 is provided with a rear cover 900, and the rear cover 900 is detachably connected to the rear end of the housing 110. When the electric linear cutting stapler for laparoscope is used, the rear cover 900 is first opened in the sterile area and a cover is put on the rear end of the housing 110, and then the rear end of the housing 110 is extended into the separation area between the sterile area and the sterile area, and the battery pack 10 is placed in the battery receiving chamber 111, and then the rear cover 900 is closed, and the electric linear cutting stapler for laparoscope is retracted into the sterile area. After the electric linear cutting stapler for laparoscope is used once, the rear cover 900 is opened to take out the battery pack 10, and the battery pack 10 is recharged again and can be reused.

[0157] A connecting shaft 112 is disposed on one side of the rear end of the housing 110 , and the rear cover 900 is connected to the connecting shaft 112 . The rear cover 900 can rotate along the connecting shaft 112 . A spring piece 930 is disposed on the inner side surface of the rear cover 900 .

[0158] A shell buckle 113 is provided on the other side of the rear end of the shell 110, and a cover buckle 910 which can be engaged with the shell buckle 113 is provided on the back cover 900. A cover button 920 is provided on the cover buckle 910, and the cover button 920 is located on the outside of the back cover 900. When the cover button 920 is pressed, the cover button 920 pushes the cover buckle 910 to move, and the cover buckle 910 is separated from the shell buckle 113.

[0159] The cover button 920 pushes the cover buckle 910 to move, and the cover buckle 910 is separated from the shell buckle 113. After the back cover 900 is rotated, the back cover 900 is opened, and the battery pack 10 can be placed in the battery accommodating cavity 111; then, the back cover 900 is rotated so that the back cover 900 covers the battery accommodating cavity 111 of the outer shell 110, and the shell buckle 113 is engaged with the cover buckle 910, and the spring piece 930 presses the battery pack 10 to fix the position of the battery pack 10; after the laparoscope-use electric linear cutting stapler has been used once, the back cover 900 is opened, and the restoring force of the spring piece 930 will pop the back cover 900 outward, and the battery pack 10 can be taken out.

[0160] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0161] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A double squeezing structure of an electric linear cutting stapler for laparoscopy, the electric linear cutting stapler for laparoscopy comprising a housing (100); the housing (100) comprising an outer shell (110) and an inner shell (120) arranged inside the outer shell (110); characterized in that: A double squeezing structure is arranged on the housing (100); The double pressing structure comprises: A support shaft (210) is disposed on the housing (110); A closing lock plate (220) is arranged at the lower part of the housing (110), and a closing lock groove (221) is provided on the closing lock plate (220); A closing handle (230) is sleeved on the support shaft (210), the closing handle (230) can rotate relative to the support shaft (210), and a closing positioning member (231) is provided at the lower end of the closing handle (230); An outer tube locking plate (240) is disposed in the inner shell (120), the rear end of the outer tube locking plate (240) is hinged to one end of a closing link (250), and the other end of the closing link (250) is hinged to the upper end of the closing handle (230); An outer tube (310), the rear end of the outer tube (310) penetrates into the inner shell (120), and the rear end of the outer tube (310) is connected to the outer tube locking plate (240); a spring (320) is sleeved on the outer tube (310), and the spring (320) is located between the inner shell (120) and the front end of the outer tube locking plate (240); A steering sleeve (330), wherein the front end of the outer sleeve (310) is connected to the steering sleeve (330) via a sleeve connecting piece (340); A nail magazine base (410) is arranged inside the steering sleeve (330), and a nail magazine receiving groove (411) is provided on the nail magazine base (410); The anvil (420) is arranged inside the steering sleeve (330) and connected to the steering sleeve (330); the anvil (420) is located above the nail magazine base (410), and the anvil (420) is movably connected to the nail magazine base (410); the anvil (420) is provided with a nail seat receiving groove (421); The cutting knife (500) is inserted into the interior of the outer sleeve (310), and the front end of the cutting knife (500) is provided with an upper boss (510) and a lower boss (520); the rear end of the cutting knife (500) is connected to a driving component (600), and the driving component (600) drives the cutting knife (500) to move along the front-rear direction of the shell (100); When the nail support (420) and the nail magazine base (410) are closed, the cutting knife (500) is driven to move forward, and the upper boss (510) of the cutting knife (500) is inserted into the nail support receiving groove (421), and the upper boss (510) can move forward in the nail support receiving groove (421), and the lower boss (520) of the cutting knife (500) is inserted into the nail magazine receiving groove (411), and the lower boss (520) can move forward in the nail magazine receiving groove (411), so that the nail support (420) and the nail magazine base (410) move in the direction of closing with each other.

2. The double squeezing structure of the laparoscopic electric linear cutting stapler according to claim 1 is characterized in that: The notch of the closed locking groove (221) faces rearward, and the closed positioning member (231) is a positioning shaft; the closed locking groove (221) is for the positioning shaft to be inserted.

3. The double squeezing structure of the electric linear cutting stapler for laparoscopy according to claim 1 is characterized in that: The length direction of the nail seat receiving groove (421) and the length direction of the nail magazine receiving groove (411) are both in the same direction as the front-rear direction of the shell (100).

4. The double squeezing structure of the laparoscopic electric linear cutting stapler according to claim 1 is characterized in that: The inner shell (120) is provided with a guide channel (121), and the length direction of the guide channel (121) is in the same direction as the front-rear direction of the shell (100); the outer tube locking plate (240) is arranged in the guide channel (121) and can move along the length direction of the guide channel (121), and the length direction of the guide channel (121) is in the same direction as the length direction of the shell (100).

5. The double squeezing structure of the laparoscopic electric linear cutting stapler according to claim 1 is characterized in that: The nail magazine base (410) is provided with a guide groove (412), and the guide groove (412) is an arc-shaped structure; the top of the nail support seat (420) is provided with a clamping groove (422), and the side of the nail support seat (420) is provided with a sliding block (423), and the sliding block (423) is inserted into the guide groove (412); the steering sleeve (330) is provided with a buckle (331), and the buckle (331) is clamped in the clamping groove (422).

6. The double squeezing structure of the laparoscopic electric linear cutting stapler according to claim 1 is characterized in that: The driving component (600) comprises a firing knob (610), a firing contact switch (620), a transmission component (630), a motor (640) and a screw rod (650); the firing knob (610) is movably mounted on the housing (110), and the firing knob (610) can rotate relative to the housing (110); the firing contact switch (620) is located inside the housing (110), and the firing contact switch (620) is located in the rotation path of the firing knob (610). diameter; the motor (640) is arranged inside the housing (110); the output end of the motor (640) is connected to the transmission component (630), the transmission component (630) is connected to the lead screw (650), the transmission component (630) drives the lead screw (650) to move along the front-rear direction of the housing (100), and the lead screw (650) is connected to the cutting knife (500); the motor (640) and the firing contact switch (620) are both connected to the controller (660).

7. The double squeezing structure of the laparoscopic electric linear cutting stapler according to claim 1 is characterized in that: A battery receiving cavity (111) for receiving the battery pack (10) is provided at the rear end of the housing (110), and a rear cover (900) is provided on the battery receiving cavity (111), and the rear cover (900) is detachably connected to the rear end of the housing (110).

8. The double squeezing structure of the laparoscopic electric linear cutting stapler according to claim 7 is characterized in that: A connecting shaft (112) is provided on one side of the rear end of the housing (110), the rear cover (900) is connected to the connecting shaft (112), and the rear cover (900) can rotate along the connecting shaft (112); A shell buckle (113) is provided on the other side of the rear end of the shell (110); a cover buckle (910) that can be engaged with the shell buckle (113) is provided on the back cover (900); a cover button (920) is provided on the cover buckle (910); the cover button (920) is located on the outside of the back cover (900); when the cover button (920) is pressed, the cover button (920) pushes the cover buckle (910) to move, and the cover buckle (910) is separated from the shell buckle (113).

Images