CN114795345A - Double squeezing structure of electric linear cutting anastomat for endoscope - Google Patents

Abstract

The invention provides a double-squeezing structure of an endoscope electric linear cutting anastomat, which comprises the following components: the support shaft is arranged on the shell, and the closed locking plate is provided with a closed locking groove; the closing handle is sleeved on the supporting shaft, and a closing positioning piece is arranged at the lower end of the closing handle; the outer tube locking plate is arranged in the inner shell and hinged with the closing connecting rod, and the closing connecting rod is hinged with the closing handle; the outer sleeve is connected with the outer tube locking plate; the outer sleeve is sleeved with a spring; the outer sleeve is connected with the steering sleeve; the nail box base is provided with a nail box bearing groove; the nail abutting seat is positioned above the nail box base; the nail seat bearing groove is arranged on the nail abutting seat; the cutting knife penetrates into the outer sleeve; the rear end of the cutting knife is connected with a driving part. The invention can realize double squeezing of tissues, and the first pre-squeezing before the second squeezing and the suture cutting of the tissues can fully discharge tissue fluid in the squeezed target tissues to peripheral tissues, so that the anastomosis effect is better.

Description

Double pressing structure of electric linear cutting stapler for endoscopy

technical field

The invention relates to the technical field of staplers, in particular to a double pressing structure of an electric linear cutting stapler for endoscopy.

Background technique

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 performs one pressing operation on the human tissue. How to design an electric linear cutting stapler with a simple structure and capable of performing two pressing operations on human tissue is a problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a double-pressing structure of an electric linear cutting stapler for endoscopy capable of performing two pressing operations, so as to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose and other related purposes, the present invention provides a double pressing structure of an electric linear cutting and stapler for endoscopy. The electric linear cutting and stapler for endoscopy includes a casing; The inner shell inside the outer shell; the double pressing structure is arranged on the casing; the double pressing structure includes:

a support shaft, arranged on the casing;

a closing lock plate, which is arranged on the lower part of the casing, and a closing locking groove is arranged on the closing lock plate;

a closing handle sleeved on the support shaft, the closing handle can be rotated relative to the support shaft, and a closing positioning member is provided at the lower end of the closing handle;

an outer tube locking plate, arranged in the inner shell, the rear end of the outer tube locking plate is hinged with one end of the closing link, and the other end of the closing link is hinged with the upper end of the closing handle;

an outer sleeve, the rear end of the outer sleeve penetrates into the inner shell, and the rear end of the outer sleeve is connected with the outer sleeve locking plate; a spring is sleeved on the outer sleeve, and the spring is located in the outer sleeve. between the inner shell and the front end of the outer tube locking plate;

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

The magazine base is arranged inside the steering sleeve, and the magazine base is provided with a magazine receiving groove;

An anvil seat is arranged inside the steering sleeve and connected with the steering sleeve; the anvil seat is located above the magazine base, and the anvil seat is movably connected to the magazine base ; a nail seat receiving groove is provided on the nail abutting seat;

The cutting knife penetrates into the inside of the outer sleeve, the front end of the cutting knife is provided with an upper boss and a lower boss; the rear end of the cutting knife is connected to a driving component, and the driving component drives the cutting edge moving in the front-rear direction of the housing;

When the anvil seat and the magazine base are closed, the cutting knife is driven to move forward, the upper boss of the cutting knife is clamped into the receiving groove of the nail seat, and the upper boss can be inserted into the The nail seat receiving groove moves forward, the lower boss of the cutting knife is clamped in the magazine receiving groove, and the lower boss can move forward in the magazine receiving groove, so that the abutting The nail seat and the magazine base move toward the direction of mutual closing.

Preferably, the notch of the closed locking groove faces rearward, the closed positioning member is a positioning shaft; the closed locking groove is inserted into the positioning shaft.

Preferably, both the longitudinal direction of the nail seat receiving groove and the longitudinal direction of the nail magazine receiving groove are in the same direction as the front-rear direction of the housing.

Preferably, a guide channel is provided in the inner shell, and the length direction of the guide channel is the same as the front-rear direction of the casing; the outer tube locking plate is arranged in the guide channel, and can be along the The length direction of the guide channel moves; the length direction of the guide channel is in the same direction as the length direction of the casing.

Preferably, a guide groove is provided on the base of the magazine, and the guide groove is an arc-shaped structure; The slider is inserted into the guide groove; the steering sleeve is provided with a buckle, and the buckle is inserted into the buckle.

Preferably, the driving part includes a firing knob, a firing contact switch, a transmission part, a motor and a lead screw; the firing knob is movably mounted on the housing, and the firing knob can rotate relative to the housing; the firing knob is rotatable relative to the housing; The firing contact switch is located inside the housing, and the firing contact switch is on the rotation path of the firing knob; the motor is arranged inside the housing; the output end of the motor is connected to the transmission component , the transmission part is connected with a screw rod, the transmission part drives the screw rod to move along the front and rear directions of the casing, and the screw rod is connected with the cutting knife; the motor and the firing contact switch are both connected to Controller connection.

Preferably, the rear end of the casing is provided with a battery accommodating cavity for placing the battery pack, a rear cover is provided on the battery accommodating cavity, and the rear cover is detachably connected to the rear end of the casing.

Further, one side of the rear end of the casing is provided with a connecting shaft, the rear cover is connected with the connecting shaft, and the rear cover can rotate along the connecting shaft;

The other side of the rear end of the casing is provided with a shell buckle, the back cover is provided with a cover body buckle that can be snapped with the shell buckle, and a cover body is arranged on the cover body buckle The cover button is located on the outer side of the rear cover. Press the cover button, and the cover button pushes the cover buckle to move, and the cover buckle is separated from the shell buckle. .

As mentioned above, the double pressing structure of the electric linear cutting stapler for endoscopy of the present invention has the following beneficial effects:

When the double-pressing structure of the electric linear cutting stapler for endoscopy of the present invention is used, the closing handle is pressed down, 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 closed. It is locked by the closing lock plate; the closing handle pushes the outer tube lock plate to move forward through the closing link, the outer tube lock plate drives the outer sleeve to move forward, and the outer sleeve pushes the steering sleeve to move forward through the sleeve connecting piece, and the steering sleeve moves forward. The tube drives the anvil base to rotate in the direction of closing with the magazine base, and the nail anvil base and the magazine base are closed. At this time, the first heavy pressing of the tissue by the nail anvil base is completed; after the nail anvil base and the magazine base are closed, the drive The component drives the cutting knife to move forward, the upper boss of the cutting knife is stuck in the receiving groove of the nail seat, the upper boss of the cutting knife moves forward in the receiving groove of the nail seat, and the lower boss of the cutting knife is stuck in the nail box In the receiving groove, the lower boss of the cutting knife moves forward in the receiving groove of the nail box, so that the nail anvil seat and the nail box base move in the direction of closing each other, and at this time, the second heavy pressing of the tissue by the nail anvil seat is realized; The invention can realize the double pressing of the tissue, and the first pre-pressing before the second pressing and suturing and cutting the tissue can fully discharge the tissue fluid in the pressed target tissue to the peripheral tissue, so that the anastomosis effect is better.

Description of drawings

FIG. 1 is a schematic three-dimensional structure diagram of the double-pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment.

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 .

3 is a schematic view of the structure when the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment is not provided with a casing and the closing positioning member exits the closing locking groove.

FIG. 4 is an enlarged schematic view of the structure at B of FIG. 3 .

FIG. 5 is a schematic view of the structure of the double pressing structure of the electric linear cutting stapler for endoscopy according to the present embodiment when the casing is not provided and the closing positioning member is inserted into the closing locking groove.

FIG. 6 is an enlarged schematic view of the structure at C of FIG. 5 .

FIG. 7 is a schematic view of the inner side structure of the double-pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment when the closed positioning member is inserted into the closed locking groove.

FIG. 8 is an enlarged schematic view of the structure at D of FIG. 7 .

9 is a schematic diagram showing the internal three-dimensional structure of the double-pressing structure of the closed positioning member of the electric linear cutting stapler for endoscopy of the present embodiment when inserted into the closed locking groove.

10 is an enlarged schematic view of the structure of the connection between the closing rod and the outer tube locking plate when the closing positioning member of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment is inserted into the closing locking groove.

11 is a schematic diagram showing the structure of the connection between the outer sleeve and the steering sleeve when the closed positioning member of the double pressing structure of the electric linear cutting and stapler for endoscopy of the present embodiment is inserted into the closing locking groove.

FIG. 12 is a schematic diagram showing the structure of the double pressing structure of the steering sleeve of the electric linear cutting stapler for endoscopy of the present embodiment being snapped into the snap groove of the anvil seat.

FIG. 13 is a schematic view of the structure of the anvil seat of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment.

FIG. 14 is a schematic diagram showing the structure of the steering sleeve of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment.

FIG. 15 is a schematic three-dimensional structural diagram of the double-pressing structure of the closed positioning member of the electric linear cutting stapler for endoscopy of the present embodiment when it exits the closed locking groove.

16 is an enlarged schematic view of the structure of the connection between the closing link and the outer tube locking plate when the closing positioning member of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment exits the closing locking groove.

17 is an enlarged schematic view of the anvil seat and the magazine base not being closed when the closed positioning member of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment exits the closed locking groove.

FIG. 18 is a schematic diagram showing the front exploded structure of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment.

FIG. 19 is a schematic diagram of the structure at E of FIG. 18 .

FIG. 20 is a schematic diagram showing the upper structure of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment when the outer sleeve is not provided.

FIG. 21 is a schematic diagram of the structure at F of FIG. 20 .

FIG. 22 shows a schematic diagram of the lower structure of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment when the outer sleeve is not provided.

FIG. 23 is a schematic diagram of the structure at G in FIG. 22 .

FIG. 24 is a schematic diagram showing the exploded structure of the swinging driving part and the rotating handle of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment.

FIG. 25 is a schematic diagram of the structure at H of FIG. 24 .

FIG. 26 shows a schematic diagram of the structure at I of FIG. 25

FIG. 27 is a schematic diagram of the double pressing structure of the electric linear cutting stapler for endoscopy of the present embodiment under the control of the controller.

FIG. 28 is a schematic top view of the structure of the rear end of the housing of the electric linear cutting stapler for endoscopy of the present embodiment with a rear cover.

FIG. 29 is an enlarged schematic view of the structure at J of FIG. 28 .

FIG. 30 is a schematic diagram showing the structure of the electric linear cutting stapler for endoscopy of the present embodiment when the rear cover is opened and a battery pack is placed in the battery accommodating cavity.

FIG. 31 is an enlarged schematic view of the structure at K in FIG. 30 .

FIG. 32 is a schematic diagram showing the structure of the electric linear cutting stapler for endoscopy of the present embodiment when the back cover is opened and the battery pack is not placed in the battery accommodating cavity.

FIG. 33 is an enlarged schematic view of the structure at L in FIG. 32 .

Explanation of reference numerals

100 shells

110 shell

111 Battery accommodating cavity

112 connecting shaft

113 Shell buckle

120 inner shell

121 Guide channel

210 Support shaft

220 closed lock plate

221 Close locking slot

230 closed handle

231 Closed retainer

232 Handle body

233 Handle upper flange

234 Handle Tail Plate

240 Outer tube lock plate

250 Closed Link

310 outer casing

311 Pipe Axial Channel

312 Outer tube groove

320 spring

330 Steering Sleeve

331 Buckle

340 Sleeve Connector

410 Magazine Base

411 Magazine Receptacle

412 Guide groove

420 Anvil seat

421 Nail holder socket

422 card slot

423 Slider

500 Cutter

510 Upper boss

520 Lower boss

600 Drive Components

610 Firing Knob

620 Firing Contact Switch

630 Transmission parts

631 Drive gear

632 driven gear

640 Motor

650 lead screw

660 Controller

710 Rotary handle

711 Clamping part

720 Support rod

721 Clamping part

722 Rod Receiving Slots

730 upper support

731 upper protrusion

732 Upper steering socket

740 Lower Support

741 Lower protrusion

742 Lower steering socket

750 Steering rod

761 Upper Steering Fitting

762 Lower Steering Connector

763 Spindles

800 Oscillating Drive Components

10 battery packs

900 back cover

910 cover snap

920 Cover button

930 Shrapnel

Detailed ways

The embodiments of the present invention are described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

Please see attached image. It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the implementation of the present invention. Restricted conditions, it does not have technical substantive significance, any structural modification, proportional relationship change or size adjustment, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the present invention. The disclosed technical content must be within the scope of coverage. At the same time, the terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and clarity, and are not used to limit this specification. The implementable scope of the invention, and the change or adjustment of the relative relationship thereof, shall also be regarded as the implementable scope of the present invention without substantially changing the technical content.

In the following description, the front-rear direction of the housing 100 refers to the left-right direction with respect to the paper surface of FIG. 7 , and the vertical direction of the housing 100 refers to the vertical direction with respect to the paper surface of FIG. 7 .

As shown in FIG. 1 to FIG. 33 , the double pressing structure of the electric linear cutting stapler for endoscopy in this embodiment, the electric linear cutting and stapler for endoscopy includes a housing 100 ; The inner inner casing 120; the double pressing structure is arranged on the casing 100; the double pressing structure includes:

The support shaft 210 is arranged on the casing 110;

The closing lock plate 220 is disposed at the lower part of the housing 110, and the closing lock plate 220 is provided with a closing locking groove 221;

The closing handle 230 is sleeved on the support shaft 210, the closing handle 230 can be rotated relative to the support shaft 210, and the lower end of the closing handle 230 is provided with a closing positioning member 231;

The outer tube locking plate 240 is arranged in the inner shell 120, the rear end of the outer tube locking plate 240 is hinged with one end of the closing link 250, and the other end of the closing link 250 is hinged with the upper end of the closing handle 230;

The outer casing 310, the rear end of the outer casing 310 penetrates into the inner casing 120, and the rear end of the outer casing 310 is connected with the outer casing lock plate 240; the outer casing 310 is sleeved with a spring 320, and the spring 320 is located between the inner casing 120 and the outer casing between the front ends of the lock plates 240;

The steering sleeve 330, the front end of the outer sleeve 310 is connected with the steering sleeve 330 through the sleeve connecting piece 340;

The magazine base 410 is disposed inside the steering sleeve 330, and the magazine base 410 is provided with a magazine receiving groove 411;

The anvil seat 420 is disposed inside the steering sleeve 330 and is connected with the steering sleeve 330; the anvil seat 420 is located above the magazine base 410, and the anvil seat 420 is movably connected with the magazine base 410; the anvil seat 420 There is a nail seat receiving groove 421 on it;

The cutting knife 500 penetrates into the inside 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 component 600 is used to drive the cutting blade 500 to move along the front and rear directions of the housing 100;

After the anvil seat 420 and the magazine base 410 are closed, the cutting knife 500 is driven to move forward, the upper boss 510 of the cutting knife 500 is clamped in the nail seat receiving groove 421 , and the upper boss 510 can be inserted into the nail seat receiving groove 421 When moving forward, the lower boss 520 of the cutting knife 500 is snapped into the magazine receiving groove 411, and the lower boss 520 can move forward in the magazine receiving groove 411, so that the abutting seat 420 and the magazine base 410 face the same direction. move in the direction of closing each other.

When the double-pressing structure of the electric linear cutting and stapler for endoscopy of the present invention is used, the closing handle 230 is pressed down before cutting and anastomosis, so that the closing positioning member 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 release the closing handle 230, 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 link 250, and the outer tube locking plate 240 drives the outer casing 310 to move forward, 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 anvil base 420 to rotate in the direction of closing with the magazine base 410, and the anvil base 420 and the magazine base 410 are closed, then The double pressing structure completes the first heavy pressing of the tissue by the anvil seat 420;

During cutting and anastomosis, the driving component 600 drives the cutting blade 500 to move forward to cut the tissue. At this time, the upper boss 510 of the cutting blade 500 is clamped into the nail seat receiving groove 421, and the upper boss 510 of the cutting blade 500 is in The nail seat receiving groove 421 moves forward, the lower boss 520 of the cutting knife 500 is clamped into the nail box receiving groove 411, and the lower boss 520 of the cutting knife 500 moves forward in the magazine receiving groove 411, so that the nails are pressed against the nails. When the seat 420 and the magazine base 410 move toward each other, the double pressing structure completes the second heavy pressing of the tissue by the anvil seat 420;

After the cutting and anastomosis is completed, the driving part 600 drives the cutting knife 500 to move backward, and the cutting knife 500 returns to the initial position; press the closing handle 230 and release it again, due to the restoring force of the spring 320, the closing handle 230 returns to the original position, then the closing handle 230 is closed. The closing positioning piece 231 of the closing lock plate 220 exits the closing locking groove 221 of the closing locking plate 220 .

The invention can realize the double pressing of the tissue, and the first pre-pressing before the second pressing and suturing and cutting the tissue can fully discharge the tissue fluid in the pressed target tissue to the peripheral tissue, so that the anastomosis effect is better.

The notch of the closed locking groove 221 faces the rear, and the closed positioning member 231 is the positioning shaft; the closed locking groove 221 is for insertion of the positioning shaft. This structure facilitates the insertion and withdrawal of the closing positioning piece 231 , and the closing locking groove 221 can stably support the inserted closing positioning piece 231 .

Both the longitudinal direction of the nail seat receiving groove 421 and the longitudinal direction of the magazine receiving groove 411 are in the same direction as the front-rear direction of the housing 100 . The upper boss 510 moves along the length direction of the staple holder receiving groove 421, and the lower boss 520 moves along the length direction of the staple holder receiving groove 411, so that the double pressing structure completes the second heavy pressing of the tissue by the staple holder 420 .

A guide channel 121 is provided in the inner shell 120, and the length direction of the guide channel 121 is in the same direction as the front and rear direction of the housing 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 the guide channel 121 is the same as the length direction of the housing 100 . The guiding channel 121 achieves a guiding function, so that the outer tube locking plate 240 drives the outer sleeve 310 to move along the front and rear directions of the housing 100 .

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, and the handle tail plate 234 extends backward, The closing positioning member 231 is disposed on the handle tail plate 234 . The closing positioning piece 231 is disposed on the handle tail plate 234 , so that the closing positioning piece 231 can 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 upper flange 233 of the handle, and the closing link 250 pushes the outer tube locking plate 240 to move forward; When the positioning member 231 is withdrawn from the closing locking groove 221, the restoring force of the spring 320 pushes the outer tube locking plate 240 to move backwards, and the outer tube locking plate 240 drives the closing link 250 and the handle body 232 to return to the initial position during the backward movement of the outer tube locking plate 240. Location.

The magazine base 410 is provided with a guide groove 412, and the guide groove 412 is an arc structure; the top of the anvil seat 420 is provided with a clamping groove 422, and the side of the anvil seat 420 is provided with a slider 423, and the slider 423 is inserted into the guide In the groove 412 ; the steering sleeve 330 is provided with a buckle 331 , and the buckle 331 is inserted into the buckle slot 422 . The outer sleeve 310 pushes the steering sleeve 330 to move forward through the sleeve connecting piece 340, and the steering sleeve 330 pushes the anvil seat 420, so that the slider 423 of the anvil seat 420 slides along the guide groove 412, and the anvil seat 420 moves toward the anvil seat 420. Rotate in the direction of closing with the magazine base 410 .

The driving part 600 includes a firing knob 610, a firing contact switch 620, a transmission part 630, a motor 640 and a lead screw 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 It is located inside the housing 110, and the firing contact switch 620 is on the rotation path of the firing knob 610; the motor 640 is arranged inside the housing 110; 630 drives the screw rod 650 to move along the front and rear directions of the housing 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 .

Rotate the firing knob 610, the firing knob 610 touches the firing contact switch 620, the firing contact switch 620 sends the firing signal to the controller 660, the controller 660 drives the motor 640, and the motor 640 drives the lead screw 650 along the casing through the transmission part 630 The body 100 moves in the front and rear directions, so that the screw rod 650 can drive the cutting knife 500 to move.

The transmission part 630 is arranged inside the casing 110. The transmission part 630 includes a driving gear 631 and a driven gear 632; the output end of the motor 640 is connected with the driving gear 631; both the driving gear 631 and the driven gear 632 can rotate; the driving gear 631 Meshing 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 and rear direction of the housing 100; the driven gear 632 is provided with threaded holes; 650 is connected with threaded holes. 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 650 to move. The transmission component 630 has a simple structure and is convenient for transmission.

The electric linear cutting stapler for endoscopy also includes:

The rotary handle 710 is installed on the outer casing 110, and the interior of the rotary handle 710 is provided with two opposite clamping parts 711; The outer surface of the tube 310 is provided with two oppositely arranged outer tube grooves 312, the groove bottom surface of each outer tube groove 312 has a groove bottom through hole 313, and each groove bottom through hole 313 is connected to the axial channel 311 of the pipe fitting. Connected; two clamping parts 711 clamp the outer sleeve 310;

The support rod 720 is inserted into the inside of the outer sleeve 310, and the outer side of the support rod 720 is provided with two oppositely arranged clamping portions 721, and the two clamping portions 721 respectively pass through the two groove bottom through holes 313; The clamping part 721 is inserted between the two clamping parts 711, and the two clamping parts 711 clamp the support rod 720; the outer side of the support rod 720 is also provided with a rod receiving groove 722, and the rod receiving groove 722 extends to the front end of the support rod 720;

The upper support member 730 and the lower support member 740 are both located in the tubular axial channel 311 of the outer sleeve 310, and the rear end of the upper support member 730 and the rear end of the lower support member 740 are both connected with the front end of the support rod 720; the upper support member The front end of the 730 is provided with an upper protrusion 731, the front end of the lower support 740 is provided with a lower protrusion 741; the front end of the upper protrusion 731 is provided with an upper steering receiving hole 732, and the front end of the lower protrusion 741 is provided with a lower steering receiving hole 742 ;

The steering rod 750, the rear end of the steering rod 750 extends into the rod receiving groove 722, and the steering rod 750 is located between the upper support 730 and the lower support 740; the side of the front end of the steering rod 750 is connected to the rotating shaft 763, and the rotating shaft 763 The upper end of the steering rod 750 is inserted into the upper steering receiving hole 732, and the lower end of the rotating shaft 763 is inserted into the lower steering receiving hole 742;

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 with the rotating shaft 763; the magazine base 410 is connected with the lower steering joint 762. This structure allows the magazine base 410 to be stably disposed inside the steering sleeve 330 .

The two clamping parts 711 of the rotary 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 , and 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 protrusion 731 on the upper support 730, and the rotating shaft 763 passes through the lower protrusion 741 on the lower support 740; the magazine base 410 is connected with the lower steering joint 762, and the front end of the outer sleeve 310 passes through the sleeve The connecting piece 340 is connected with the steering sleeve 330, then 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, and the support rod 720 drives the upper support 730 and the support rod 720 to rotate simultaneously. The lower support 740 rotates, the upper support 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.

The rear end of the housing 110 is provided with a battery accommodating cavity 111 into which the battery pack 10 is placed. When using the electric linear cutting stapler for endoscope, first open the back cover 900 in the sterile area and put a cover on the rear end of the housing 110, and then extend the rear end of the housing 110 into the space between the sterile area and the sterile area. The battery pack 10 is placed in the battery accommodating cavity 111 , then the back cover 900 is closed, and the electric linear cutting stapler for the endoscope is retracted into the sterile area. After the electric linear cutting stapler for endoscope is used once, the back cover 900 can be opened, and the battery pack 10 can be taken out, and the battery pack 10 can be charged again and can be used repeatedly.

A connecting shaft 112 is provided on one side of the rear end of the housing 110 , the rear cover 900 is connected with the connecting shaft 112 , and the rear cover 900 can rotate along the connecting shaft 112 ;

The other side of the rear end of the outer casing 110 is provided with a case snap 113 , the rear cover 900 is provided with a cover snap 910 which can be snapped with the housing snap 113 , and a cover button 920 is provided on the cover snap 910 , the cover button 920 is located on the outer side of the back cover 900 , press the cover button 920 , the cover button 920 pushes the cover buckle 910 to move, and the cover buckle 910 is separated from the shell buckle 113 .

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 rear cover 900 is rotated, the rear cover 900 is opened, and the battery pack 10 can be placed in the battery accommodating cavity 111 . ; Then, rotate the back cover 900 so that the back cover 900 covers the battery accommodating cavity 111 of the casing 110, and the shell buckle 113 is snapped with the cover body buckle 910, and the elastic piece 930 presses the battery pack 10, so that the position of the battery pack 10 is fixed ; After using the electric linear cutting stapler for the endoscope once, open the back cover 900, and the restoring force of the shrapnel 930 will pop out the back cover 900, and the battery pack 10 can be taken out.

In conclusion, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present invention should still be covered by the claims of the present invention.

Claims (8)

1. A double pressing structure of an electric linear cutting stapler for endoscopy, the electric linear cutting stapler for endoscopy comprises a casing (100); the casing (100) comprises a casing (110) and a casing (110) arranged in the casing (110) An inner inner casing (120); characterized in that a double pressing structure is arranged on the casing (100); the double pressing structure includes: a support shaft (210), arranged on the casing (110); a closing lock plate (220), disposed at the lower part of the casing (110), and a closing locking 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) is rotatable relative to the support shaft (210), and the lower end of the closing handle (230) is provided with a closing position pieces (231); An outer tube lock plate (240), disposed in the inner shell (120), the rear end of the outer tube lock plate (240) is hinged with one end of a closing link (250), the closing link (250) ) is hinged with the upper end of the closing handle (230); an outer sleeve (310), the rear end of the outer sleeve (310) penetrates into the inner casing (120), and the rear end of the outer sleeve (310) 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 casing (120) and the front end of the outer tube locking plate (240); a steering sleeve (330), the front end of the outer sleeve (310) is connected to the steering sleeve (330) through a sleeve connecting piece (340); a magazine base (410), disposed inside the steering sleeve (330), and a magazine receiving groove (411) is provided on the magazine base (410); An anvil seat (420) is arranged inside the steering sleeve (330) and is connected with the steering sleeve (330); the anvil seat (420) is located at the bottom of the magazine base (410) Above, the anvil seat (420) is movably connected with the magazine base (410); a nail seat receiving groove (421) is provided on the anvil seat (420); A cutting knife (500) penetrates into the inside 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 cutting knife (500) The rear end of the ) is connected to a driving part (600), and the driving part (600) drives the cutting blade (500) to move along the front-rear direction of the housing (100); After the anvil seat (420) and the 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 clamped into the In the nail seat receiving groove (421), the upper boss (510) can move forward in the nail seat receiving groove (421), and the lower boss (520) of the cutting knife (500) is clamped into the nail seat receiving groove (421). In the magazine receiving groove (411), the lower boss (520) can move forward in the magazine receiving groove (411), so that the nail abutting seat (420) and the magazine base (410) move toward the direction of closing each other. 2. The double pressing structure of the electric linear cutting stapler for endoscopy 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 inserted into the positioning shaft. 3. The double pressing structure of the electric linear cutting stapler for endoscopy according to claim 1, is characterized in that: Both the longitudinal direction of the nail seat receiving groove (421) and the longitudinal direction of the magazine receiving groove (411) are in the same direction as the front-rear direction of the housing (100). 4. The double pressing structure of the electric linear cutting stapler for endoscopy according to claim 1, characterized in that: A guide channel (121) is provided in the inner shell (120), 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 lock plate (240) is provided with In the guide channel (121) and movable along the length direction of the guide channel (121), the length direction of the guide channel (121) is the same as the length direction of the housing (100). 5. The double pressing structure of the electric linear cutting stapler for endoscope according to claim 1, is characterized in that: The magazine base (410) is provided with a guide groove (412), and the guide groove (412) is an arc structure; A sliding block (423) is provided on the side surface of the nail seat (420), and the sliding block (423) is inserted into the guide groove (412); the steering sleeve (330) is provided with a buckle (331) , the clip (331) is clipped into the slot (422). 6. The double pressing structure of the electric linear cutting stapler for endoscopy according to claim 1, characterized in that: The driving part (600) includes a firing knob (610), a firing contact switch (620), a transmission part (630), a motor (640) and a lead screw (650); the firing knob (610) is movably installed on the On the housing (110), the firing knob (610) is rotatable relative to the housing (110); the firing contact switch (620) is located inside the housing (110), and the firing contact The switch (620) is on the rotation path of the firing knob (610); the motor (640) is arranged inside the casing (110); the output end of the motor (640) is connected to the transmission part (630) connection, the transmission component (630) is connected to the screw rod (650), the transmission member (630) drives the screw rod (650) to move along the front and rear directions of the housing (100), and the screw rod (650) Connected with the cutting knife (500); the motor (640) and the firing contact switch (620) are both connected with the controller (660). 7. The double pressing structure of the electric linear cutting stapler for endoscopy according to claim 1, characterized in that: The rear end of the casing (110) is provided with a battery accommodating cavity (111) into which the battery pack (10) is placed, and a rear cover (900) is provided on the battery accommodating cavity (111), and the rear cover (900) ) is detachably connected to the rear end of the casing (110). 8. The double pressing structure of the electric linear cutting stapler for endoscopy according to claim 7, characterized in that: A connecting shaft (112) is provided on one side of the rear end of the casing (110), the back cover (900) is connected with the connecting shaft (112), and the back cover (900) can be along the connecting shaft (112) Rotation; The other side of the rear end of the casing (110) is provided with a shell snap (113), and the rear cover (900) is provided with a cover snap that can be engaged with the shell snap (113) (910), the cover button (910) is provided with a cover button (920), the cover button (920) is located on the outer side of the rear cover (900), and the cover button (920) is pressed ), the cover button (920) pushes the cover snap (910) to move, and the cover snap (910) is separated from the housing snap (113).

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