CN114948039A - Disposable electric endoscope anastomat - Google Patents
Disposable electric endoscope anastomat Download PDFInfo
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- CN114948039A CN114948039A CN202210584090.8A CN202210584090A CN114948039A CN 114948039 A CN114948039 A CN 114948039A CN 202210584090 A CN202210584090 A CN 202210584090A CN 114948039 A CN114948039 A CN 114948039A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
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Abstract
The invention relates to the technical field of disposable electric anastomat, and discloses a disposable electric endoscope anastomat, which comprises: the elongated body is positioned at the far end of the driving handle and extends to the execution end of the electric anastomat, and the elongated body is used for linking the execution end; the drive guide assembly comprises a drive guide frame. Through the elastic button when extrudeing to the middle part, extrude shrink a model through the locking lever, wherein the position of shrink piece and locking lever contact can adopt the wedge structure, when making locking lever extrusion shrink, shrink piece can remove to locking outside the groove, when needs contact the locking to the firing button, continue to extrude elastic button to the middle part, locking lever and locking between the groove locking piece are in linear release state, can linear movement between locking lever and the locking groove promptly, under the elastic action of elastic button, shrink piece begins to be kept away from to the locking lever, shrink piece begins the shrink, and the shrink is locked the inslot, the completion is relieved to the locking of firing button.
Description
Technical Field
The invention relates to the technical field of disposable electric anastomats, in particular to a disposable electric endoscope anastomat.
Background
Endoscopic anastomosis is one of the most common operations in abdominal surgery and the most basic operation that a general surgeon must master. The method by which surgeons staple tissue using surgical instruments has continued for nearly 200 years. As one of the most successful surgical instruments, staplers have been widely used in modern surgery, and all manual suturing in gastrointestinal surgery can be performed by staplers, which are considered to be the most important advance in the field of surgical instruments in the second half of the 20 th century. More and more surgeons prefer to use staplers during esophageal-intestinal anastomosis, low-rectal-cancer anus protection and laparoscopic surgery.
Most of the existing anastomats are manually driven and electrically driven, wherein the anastomat of the electric drive executing assembly is the first choice of medical personnel for facilitating the medical personnel to operate the anastomat to perform surgery on a patient; because the anastomat generally belongs to a disposable medical appliance, the electric driving anastomat is used as an anastomat driven by electric power, and generally only the driving part adopts electric power drive and is matched with a transmission structure of an execution end to realize the functional operation of the whole anastomat; the existing electric anastomat needs to be reset manually when the triggering and returning operation is carried out; when manual reset, need both hands operation, the drive handle is held tightly to one hand, the manual key that resets is pulled to the other hand, realize the percussion and return, can drive rocking of drive handle during both hands operation, and then lead to the swing of anastomat execution end, and when needs reset operation, generally be the operation that goes on when the anastomat execution end grasps patient's tissue, the swing of anastomat execution end can cause the anastomat execution end to tear patient's tissue scheduling problem like this, increase operation area is for patient's pain.
Disclosure of Invention
Technical scheme (I)
In order to solve the technical problems, the invention provides the following technical scheme: a disposable electric endoscopic stapler comprising: the elongated body is positioned at the far end of the driving handle and extends to the execution end of the electric anastomat, and the elongated body is used for linking the execution end; the driving guide assembly comprises a driving guide frame, a driving guide groove and a return spring; the driving guide frame is connected with the inner cavity of the driving handle, the driving guide groove is positioned on the inner side of the driving guide frame, the reset spring is positioned above the near end of the driving guide frame, a driving piece is arranged in the driving guide groove, and the driving piece is connected with a driving mechanism; the driving guide groove is of a structure like a Chinese character 'ji', and under the limit of the driving guide groove, the driving piece is positioned at the bottom end of the driving guide groove, moves forwards for a certain distance, enters the middle part of the driving guide groove and returns under the action of the reset spring; and a movable clamping sleeve is arranged between the driving guide assembly and the slender body, moves along with the driving piece and is respectively matched with different firing rods in the slender body in a clamping manner.
Preferably, the drive guide way is by supreme first propulsion guide way, the guide way that resets and the propulsion guide way of second of including down, first propulsion guide way reset the guide way and the second impels the guide way and is horizontal setting, first propulsion guide way is located the downside of drive leading truck, the guide way that resets is located first propulsion guide way top, just the distal end of the guide way that resets with the distal end intercommunication of first propulsion guide way, the second impels the guide way to be located the top of the guide way that resets, the proximal end of the guide way that resets with the proximal end intercommunication of second propulsion guide way.
Preferably, the driving piece includes the removal push rod, the removal push rod is located in the drive guide way, movable clamping sleeve sets up the distal end of removal push rod, the removal push rod both sides extend in drive guide way both sides are outside, the removal push rod both ends are provided with the round bar, the round bar outer connection has multi-stage telescopic rod, multi-stage telescopic rod bottom is provided with the bracing piece cover, multi-stage telescopic rod bottom with the bracing piece cover upper end slides and cup joints, bracing piece cover top both sides are provided with the direction and erect the rail, the round bar is in the direction is erected the rail and is removed, bracing piece cover bottom is provided with the drive plate.
Preferably, the round rod is connected with the top end of the multi-stage telescopic rod, two ends of the round rod are connected with the return spring, the movable push rod moves along the driving guide groove under the action of the driving guide groove, and the multi-stage telescopic rod ensures that the movable push rod is always connected with the driving mechanism when moving; the driving mechanism comprises a driving motor, the driving motor is located in the driving handle, a shaft rod is arranged at the output end of the driving motor, a driving screw rod is arranged at the end part of the shaft rod, driving teeth are arranged at the bottom of the driving plate, and the driving screw rod is matched with the driving teeth at the bottom of the driving plate.
Preferably, reset spring is located one side of drive leading truck near-end top is provided with the direction and erects the groove, reset spring through the direction horizontal pole with the direction is erected the groove and is connected, direction horizontal pole both ends are located the direction is erected inslot portion and is provided with the direction slider, the direction horizontal pole with the direction slider rotates and connects, be provided with movable latch on the direction horizontal pole, the direction is erected inslot side and is provided with the linkage rack, movable latch with linkage rack toothing sets up, the direction horizontal pole with be provided with the torsional spring between the direction slider.
Preferably, the driving handle the place ahead is provided with the firing button, firing button middle part be provided with the pivot with the driving handle rotates to be connected, firing button top the place ahead is provided with the shrink piece, the shrink piece sets up at locking inslot, locking groove with driving handle inner chamber fixed connection, locking groove both ends are provided with the elasticity button, the elasticity button is relative locking groove linear movement.
Preferably, each elastic button is internally provided with a locking rod, the shrinking piece is arranged between the two locking rods, a locking piece is arranged between the locking rod and two ends of the locking groove, the two locking rods are in a linear locking state in the process of extruding towards the middle part, the two locking rods are extruded towards the middle part into the locking groove, and the locking piece and the locking rods are in a linear releasing state.
Preferably, an overload spring is arranged in the movable cutting sleeve, a movable limiting block is arranged between the tail part of the overload spring and the movable cutting sleeve, and the movable limiting block stretches relative to the inner wall of the movable cutting sleeve; the overload spring other end is provided with crosses the slide glass, cross slide glass and be located one side in the overload spring is provided with the overload probe rod, overload spring compression is to when the overload probe rod contacts activity stopper, the overload probe rod promotes activity stopper removes to the spacing of overload spring.
Preferably, a stop block is arranged in the middle of the firing rod, a movable groove is arranged in the middle of the elongated body and used for limiting the moving range of the stop block, and a movable clamping block is arranged at the near end of the firing rod and matched with the movable clamping sleeve.
(II) advantageous effects
Compared with the prior art, the invention provides a disposable electric endoscope anastomat, which has the following beneficial effects:
1. this disposable electronic chamber mirror anastomat drives the driving piece through drive handle control actuating mechanism and removes in drive direction subassembly, and when the driving piece removed, under drive guide way and reset spring's restriction, the driving piece removed at the drive guide way bottom layer activity, middle level and the top layer of "oneself" font structure respectively: when the driving piece moves in the bottom layer range of the driving guide groove with the Chinese character 'ji' shape, the movable cutting sleeve is connected with the firing rod positioned at the bottom side of the slender body, and the driving piece drives the firing rod to perform surgical operation; because the reset spring is positioned above the near end of the driving guide frame at the moment, when the driving piece moves to the middle layer of the driving guide groove with the Chinese character 'ji' shaped structure, the driving force of the driving mechanism is stopped, the driving piece enters the top layer range of the driving guide groove with the Chinese character 'ji' shaped structure to move under the action of the reset spring, the movable cutting sleeve is connected with the firing rod positioned at the top side of the slender body when moving, and the driving piece drives the firing rod to perform another operation; this process only needs a hand control drive handle, order about the driving piece through actuating mechanism and carry out the removal of different degrees, under drive guide assembly is used as, the driving piece can drive different firing bars respectively and operate, need the operation that the percussion was returned when accomplishing electronic anastomat operation, need not bimanualness, rocking of drive handle that bimanualness brought when avoiding performing the operation, lead to the anastomat execution end to tear patient's tissue scheduling problem, reduce the operation and bring the pain of hindering for the patient.
2. The disposable electric endoscope anastomat can move in the guide vertical groove under the driving of the guide transverse rod through the reset spring, when the movable push rod at one end of the reset spring moves in the first propelling guide groove, the movable latch at the two ends of the guide cross rod moves to the middle part of the guide vertical groove along the linkage rack under the pulling force of the reset spring, because the length of the first propelling guide groove is limited, the stretched length of the reset spring is limited, namely the movable latch is limited in tension, so that the movable latch can only rotate towards the middle part of the guide vertical groove, the torsion spring between the guide transverse rod and the guide sliding block is twisted during rotation and stores elastic potential energy, when the movable push rod moves towards the near end of the driving guide frame, the reset spring contracts, the pulling force applied to the movable latch becomes small, the torsion spring begins to contract, and accumulated elastic potential energy is released, so that the movable latch moves towards the upper part of the guide vertical groove along the linkage rack.
3. This disposable electronic chamber mirror anastomat, when extrudeing to the middle part through the elastic button, extrude shrink a model through the locking lever, wherein the position that shrink and locking lever contact can adopt the wedge structure, when making the locking lever extrusion shrink, shrink can move to locking outside the groove, when needs contact the locking to the firing button, continue to extrude the elastic button to the middle part, locking lever and locking between the groove is in linear release state, can linear movement between locking lever and the locking groove promptly, under the elastic action of elastic button, shrink begins to be shrunk, and shrink into locking inslot, the completion is relieved to the locking of firing button.
4. When the overload spring in the movable clamping sleeve is pushed by the driving piece, the overload spring starts to compress, and after the overload spring is compressed to a certain degree, the overload spring pushes the firing rod to move forwards; when the dead situation of mechanical card appears in the firing lever distal end, after overload spring received thrust, unable promotion firing lever, cause the sustained compression, overload spring compression drives the piece that transships and promotes the probe rod that transships and remove to activity stopper direction, contact with the activity stopper until the probe rod that transships, and promote the activity stopper shrink to activity cutting ferrule inner wall, remove the restriction to overload spring, overload spring releases elastic potential energy to activity cutting ferrule inboard this moment, reduce the thrust to the firing lever, cause anastomat execution end to take place the phenomenon such as fracture and drop in the human body when avoiding the dead situation of mechanical card appears in the firing lever distal end.
Drawings
FIG. 1 is a schematic view of the internal cross-sectional perspective structure of the driving handle of the present invention;
FIG. 2 is a perspective view of a portion of the drive guide assembly of the present invention;
FIG. 3 is a schematic illustration of a partially exploded configuration of the driving member of the present invention;
FIG. 4 is a second perspective view of a portion of the driving guide assembly of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4A;
FIG. 6 is one of the perspective views of the drive guide assembly portion and the drive member portion of the present invention;
FIG. 7 is a second perspective view of the drive guide assembly portion and the drive member portion of the present invention;
FIG. 8 is a schematic plan view, partially in section, of the interior of the drive handle of the present invention;
fig. 9 is a schematic view of a partial internal cross-sectional perspective structure of the removable ferrule of the present invention;
FIG. 10 is a perspective view of a portion of a retractor of the invention;
FIG. 11 is a schematic plan view of a portion of a retractor of the invention;
FIG. 12 is a schematic view of the internal cross-sectional plan view taken at A-A of FIG. 11 in accordance with the present invention;
FIG. 13 is an exploded view of the elongated body and firing rod portion of the present invention.
In the figure: 1. an elongated body; 11. a movable groove; 2. a drive handle; 21. a firing button; 22. a rotating shaft; 23. a contracting member; 24. a locking groove; 25. an elastic button; 26. a locking lever; 3. a drive guide assembly; 31. driving the guide frame; 32. a drive guide groove; 321. a first propel guide; 322. a reset guide groove; 323. a second propel guide; 33. a return spring; 331. a guide vertical slot; 332. a guide rail; 333. a guide slide block; 334. a movable latch; 335. a linkage rack; 336. a torsion spring; 34. an elastic support plate; 341. a drive gear; 4. a drive member; 41. moving the push rod; 42. a round bar; 43. a multi-stage telescopic rod; 44. a support rod sleeve; 45. a vertical guide rail; 46. a drive plate; 461. driving the teeth; 5. a movable ferrule; 51. an overload spring; 52. a movable limiting block; 53. passing a slide; 54. an overload feeler lever; 6. a drive motor; 61. a shaft lever; 62. driving the screw rod; 7. a stopper; 71. and a movable clamping block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a disposable electric endoscopic stapler includes: the elongated body 1 is positioned at the far end of the driving handle 2 and extends to the execution end of the electric anastomat, and the elongated body 1 is used for linking the execution end; the driving guide assembly 3, the driving guide assembly 3 includes driving guide frame 31, driving guide slot 32, and return spring 33; the driving guide frame 31 is connected with the inner cavity of the driving handle 2, the driving guide groove 32 is positioned on the inner side of the driving guide frame 31, the reset spring 33 is positioned above the near end of the driving guide frame 31, the driving piece 4 is arranged in the driving guide groove 32, and the driving piece 4 is connected with the driving mechanism; the driving guide groove 32 is of a Chinese character 'ji' shape, and under the limit of the driving guide groove 32, the driving piece 4 is positioned at the bottom end of the driving guide groove 32, moves forwards for a certain distance, enters the middle part of the driving guide groove 32 and returns under the action of the return spring 33; a movable clamping sleeve 5 is arranged between the driving guide component 3 and the slender body 1, and the movable clamping sleeve 5 moves along with the driving piece 4 and is respectively matched with different firing rods in the slender body 1 in a clamping manner.
The driving mechanism is controlled by the driving handle 2 to drive the driving part 4 to move in the driving guide component 3, when the driving part 4 moves, under the limitation of the driving guide groove 32 and the return spring 33, the driving part 4 respectively moves at the bottom layer, the middle layer and the top layer of the driving guide groove 32 with the Chinese character 'ji' shape structure: when the driving piece 4 moves in the range of the bottom layer of the driving guide groove 32 with the Chinese character 'ji' shape, the movable cutting sleeve 5 is connected with a firing rod positioned at the bottom side of the slender body 1, and the driving piece 4 drives the firing rod to carry out operation; because the return spring 33 is located above the proximal end of the driving guide frame 31, when the driving member 4 moves to the middle layer of the driving guide groove 32 with the Chinese character 'ji' shape, the driving force of the driving mechanism is terminated, under the action of the return spring 33, the driving member 4 enters the top layer range of the driving guide groove 32 with the Chinese character 'ji' shape to move, during the movement, the movable cutting sleeve 5 is connected with the firing rod located at the top side of the slender body 1, and the driving member 4 drives the firing rod to perform another operation; this process only needs a hand control drive handle 2, order about driving piece 4 through actuating mechanism and carry out the removal of different degrees, under drive guide assembly 3 is used as, driving piece 4 can drive different percussion bars respectively and operate, need the operation that the percussion was returned when accomplishing electronic anastomat operation, need not bimanualness, rocking of drive handle 2 that bimanualness brought when avoiding performing the operation, lead to the anastomat execution end to tear patient's tissue scheduling problem, reduce the operation and bring the pain for the patient.
Referring to fig. 2-4, further, the driving guide slot 32 includes, from bottom to top, a first pushing guide slot 321, a resetting guide slot 322, and a second pushing guide slot 323, the first pushing guide slot 321, the resetting guide slot 322, and the second pushing guide slot 323 are all transversely disposed, the first pushing guide slot 321 is located at the lowest side of the driving guide frame 31, the resetting guide slot 322 is located above the first pushing guide slot 321, the far end of the reset guide groove 322 is communicated with the far end of the first propulsion guide groove 321, the second propulsion guide groove 323 is positioned above the reset guide groove 322, the near end of the reset guide groove 322 is communicated with the near end of the second propulsion guide groove 323, and by utilizing the driving guide groove 32 consisting of the first propulsion guide groove 321, the reset guide groove 322 and the second propulsion guide groove 323, firstly, the driving piece 4 moves in the first propulsion guide groove 321, so that the opening and closing action of the anastomat executing end can be realized; after the executing end is clamped at the human tissue of the patient, the operation of other operations needs to be completed by resetting, and the driving piece 4 is continuously driven to move towards the front of the first propelling guide groove 321, namely, the far end of the guide frame 31 is driven; the driving member 4 is moved to the connection between the first pushing guide slot 321 and the reset guide slot 322, and moreover, the corner of the connection is set to be an inclined chamfer, so that after the driving member 4 is moved to the foremost position of the first pushing guide slot 321, it moves along the inclined chamfer and moves into the reset guide slot 322, the driving member 4 stops driving, at this time, under the action of the reset spring 33, the driving member 4 moves to the proximal end of the driving guide frame 31 along the reset guide slot 322 until it moves to the connection between the reset guide slot 322 and the second pushing guide slot 323 and approaches the upper side of the second pushing guide slot 323, at this time, the driving member 4 is driven to move forward again by the driving mechanism, the driving member 4 moves in the second pushing guide slot 323, and the cutting and anastomosis action of the anastomat can be realized;
in addition, an elastic support plate 34 capable of being turned upwards is arranged at the end part of the partition plate at the communication part of the reset guide groove 322 and the second pushing guide groove 323, the elastic support plate 34 is normally in the same plane with the partition plate, a driving gear 341 is arranged in the partition plate, when the moving push rod 41 moves from the reset guide groove 322 to the inlet end of the second pushing guide groove 323, the moving push rod 41 pushes the driving gear 341 to rotate, so that the elastic support plate 34 is turned over, at the moment, the communication part of the reset guide groove 322 and the second pushing guide groove 323 is in an open state, until the moving push rod 41 exceeds the partition plate, the elastic support plate 34 is in a horizontal state again under the action of elasticity, and the moving push rod 41 is supported in the second pushing guide groove 323; when the moving push rod 41 moves proximally in the second pushing guide groove 323, the moving push rod 41 pushes the driving gear 341 to rotate, so that the elastic support plate 34 is turned over, and at this time, the communication part between the reset guide groove 322 and the second pushing guide groove 323 is in an open state, until the moving push rod 41 exceeds the partition plate, the elastic support plate 34 is in a horizontal state again under the action of the elastic force, the moving push rod 41 is pressed in the reset guide groove 322, and the moving push rod 41 cannot push the elastic support plate 34 away under the action of the reset spring 33.
Referring to fig. 3-6, further, the driving member 4 includes a moving push rod 41, the moving push rod 41 is located in the driving guide slot 32, the movable cutting ferrule 5 is disposed at a distal end of the moving push rod 41, two sides of the moving push rod 41 extend outside two sides of the driving guide slot 32, two ends of the moving push rod 41 are provided with round rods 42, the round rods 42 are externally connected with multi-stage telescopic rods 43, a support rod sleeve 44 is disposed at a bottom of the multi-stage telescopic rods 43, a bottom of the multi-stage telescopic rods 43 is slidably sleeved with an upper end of the support rod sleeve 44, two sides above the support rod sleeve 44 are provided with guiding vertical rails 45, the round rods 42 move in the guiding vertical rails 45, a driving plate 46 is disposed at a bottom of the support rod sleeve 44, the moving push rod 41 moves in the driving guide slot 32, when the first pushing guide slot 321, the resetting guide slot 322 and the second pushing guide slot 323 in the driving guide slot 32 move, the support rod sleeve 44 is driven by the driving mechanism, with the multi-stage telescopic rod 43 and the vertical guide rail 45 above the multi-stage telescopic rod, the round rods 42 at the two ends of the moving push rod 41 move along the same direction of the multi-stage telescopic rod 43, and when the moving push rod 41 is switched between the first pushing guide groove 321, the reset guide groove 322 and the second pushing guide groove 323, the round rods 42 move up and down in the vertical guide rail 45, so that the moving push rod 41 can move transversely and can also move longitudinally to switch among the first pushing guide groove 321, the reset guide groove 322 and the second pushing guide groove 323.
Referring to fig. 3 and 6-8, further, the round bar 42 is connected to the top end of the multi-stage telescopic rod 43, two ends of the round bar 42 are connected to the return spring 33, the moving push rod 41 moves along the driving guide slot 32 under the action of the driving guide slot 32, and the multi-stage telescopic rod 43 ensures that the moving push rod 41 is always connected to the driving mechanism when moving; actuating mechanism includes driving motor 6, driving motor 6 is located driving handle 2, the 6 output of driving motor is provided with axostylus axostyle 61, axostylus axostyle 61 tip is provided with drive lead screw 62, drive plate 46 bottom is provided with drive tooth 461, drive lead screw 62 cooperates with the drive tooth 461 of drive plate 46 bottom, utilize driving motor 6 to drive lead screw 62 through axostylus axostyle 61 and rotate, when drive lead screw 62 rotates, the drive removes with its complex drive plate 46, and then orders about the removal push rod 41 and removes in drive guide way 32.
Referring to fig. 4-5, further, a guiding vertical slot 331 is disposed at one side of the return spring 33 above the proximal end of the driving guide frame 31, the return spring 33 is connected to the guiding vertical slot 331 through a guiding cross bar 332, a guiding slider 333 is disposed at two ends of the guiding cross bar 332 inside the guiding vertical slot 331, the guiding cross bar 332 is rotatably connected to the guiding slider 333, a movable latch 334 is disposed on the guiding cross bar 332, a linking rack 335 is disposed at the inner side of the guiding vertical slot 331, the movable latch 334 is engaged with the linking rack 335, a torsion spring 336 is disposed between the guiding cross bar 332 and the guiding slider 333, the return spring 33 is driven by the guiding cross bar 332 to move in the guiding vertical slot 331, when the moving push rod 41 at one end of the return spring 33 moves in the first pushing guide slot 321, the movable latch 334 at two ends of the guiding cross bar 332 is pulled by the return spring 33 to move along the linking guiding rack 335 to the middle of the vertical slot 331, since the length of the first push guide slot 321 is limited, the length of the return spring 33 that is extended is limited, that is, the pulling force applied to the movable latch 334 is limited, so that the movable latch 334 can only rotate toward the middle of the guide vertical slot 331, the torsion spring 336 between the guide cross bar 332 and the guide slider 333 is twisted during the rotation and stores elastic potential energy, when the moving push rod 41 moves toward the proximal end of the driving guide frame 31, the return spring 33 contracts, the pulling force applied to the movable latch 334 becomes smaller, the torsion spring 336 starts to retract, and the stored elastic potential energy is released, so that the movable latch 334 moves along the linkage rack 335 toward the upper side of the guide vertical slot 331.
Referring to fig. 8 and 10-12, further, a firing button 21 is disposed in front of the driving handle 2, a rotating shaft 22 is disposed in the middle of the firing button 21 and rotatably connected to the driving handle 2, a contracting member 23 is disposed in front of the top end of the firing button 21, the contracting member 23 is disposed in a locking groove 24, the locking groove 24 is fixedly connected to the inner cavity of the driving handle 2, two ends of the locking groove 24 are provided with elastic buttons 25, the elastic buttons 25 linearly move relative to the locking groove 24, the firing button 21 in the driving handle 2 is used for firing the driving mechanism, and the contracting member 23 disposed in front of the firing button 21, when the elastic button 25 is pressed towards the middle part, the outside of the locking groove 24 of the contraction piece 23 is pushed, and then the firing button 21 is clamped, since the middle part of the firing button 21 is rotatably connected with the driving handle 2 through the rotating shaft 22, the upper end of the firing button 21 cannot deflect at this time, so that the firing button 21 cannot fire the driving mechanism.
Referring to fig. 10-12, further, each elastic button 25 is provided with a locking rod 26, a contracting member 23 is disposed between two locking rods 26, locking members are disposed between the locking rod 26 and two ends of the locking groove 24, when the two locking rods 26 are pressed toward the middle, the locking members and the locking rods 26 are in a linear locking state, the two locking rods 26 are pressed toward the middle into the locking groove 24, the locking members and the locking rods 26 are in a linear release state, when the elastic button 25 is pressed toward the middle, the contracting member 23 is pressed by the locking rods 26, wherein the contracting member 23 can be in a wedge block structure at the contact position with the locking rods 26, so that when the locking rods 26 press the contracting member 23, the contracting member 23 can move toward the outside of the locking groove 24, when the trigger button 21 needs to be contacted and locked, the elastic button 25 is continuously pressed toward the middle, the locking piece between the locking rod 26 and the locking groove 24 is in a linear release state, namely the locking rod 26 and the locking groove 24 can move linearly, under the elastic action of the elastic button 25, the locking rod 26 starts to be away from the contraction piece 23, the contraction piece 23 starts to contract and contracts into the locking groove 24, and the unlocking of the firing button 21 is completed; the locking member can adopt the principle of automatic telescopic locking of an automatic ball pen, and is not described herein for the prior art.
Referring to fig. 9, further, an overload spring 51 is disposed inside the movable cutting ferrule 5, a movable stopper 52 is disposed between the tail of the overload spring 51 and the movable cutting ferrule 5, and the movable stopper 52 extends and retracts relative to the inner wall of the movable cutting ferrule 5; the other end of the overload spring 51 is provided with a carrier plate 53, one side of the overload plate 53, which is positioned in the overload spring 51, is provided with an overload probe rod 54, when the overload spring 51 is compressed until the overload probe rod 54 contacts the movable limiting block 52, the overload probe rod 54 pushes the movable limiting block 52 to release the limiting on the overload spring 51, when the overload spring 51 in the movable cutting sleeve 5 is pushed by the driving piece 4, the overload spring 51 starts to be compressed, and after the overload spring 51 is compressed to a certain degree, the overload spring 51 pushes the firing rod to move forwards; when the mechanical locking condition occurs at the far end of the trigger rod, the overload spring 51 is pushed by the pushing force, the trigger rod cannot be pushed, so that continuous compression is caused, the overload spring 51 is compressed and drives the slide glass 53 to push the overload probe rod 54 to move towards the movable limiting block 52 until the overload probe rod 54 contacts with the movable limiting block 52, the movable limiting block 52 is pushed to contract towards the inner wall of the movable cutting sleeve 5, the limitation on the overload spring 51 is removed, at the moment, the overload spring 51 releases elastic potential energy towards the inner side of the movable cutting sleeve 5, the pushing force on the trigger rod is reduced, and the phenomena that the anastomat executing end is broken and falls off in a human body when the mechanical locking condition occurs at the far end of the trigger rod are avoided.
Referring to fig. 13, further, a stopper 7 is disposed in the middle of the trigger rod, a movable groove 11 is disposed in the middle of the elongated body 1, the movable groove 11 is used for limiting the moving range of the stopper 7, a movable fixture block 71 is disposed at the proximal end of the trigger rod, the movable fixture block 71 is adapted to the movable fixture sleeve 5, and the stopper 7 disposed in the middle of the trigger rod is limited by the movable groove 11 disposed in the middle of the elongated body 1, so as to prevent the trigger rod from being excessively triggered under the elastic force of the overload spring 51.
The working principle is as follows: when the anastomat is used, after the executing end of the anastomat enters a human body, before an anastomosis operation is started, the firing button 21 in the driving handle 2 is used for firing the driving mechanism, the contraction piece 23 arranged in front of the firing button 21 pushes the outer side of the contraction piece 23 locking groove 24 when the elastic button 25 extrudes towards the middle part, and then the firing button 21 is clamped, and the upper end of the firing button 21 cannot deflect at the moment because the middle part of the firing button 21 is rotationally connected with the driving handle 2 through the rotating shaft 22, so that the driving mechanism cannot be fired by the firing button 21; when the elastic button 25 is pressed to the middle part, the model of the contraction piece 23 is pressed through the locking rod 26, wherein the contact part of the contraction piece 23 and the locking rod 26 can adopt a wedge-shaped block structure, when the contraction piece 23 is pressed by the locking rod 26, the contraction piece 23 can move to the outer side of the locking groove 24, when the firing button 21 needs to be contacted and locked, the elastic button 25 is continuously pressed to the middle part, the locking piece between the locking rod 26 and the locking groove 24 is in a linear release state, namely, the locking rod 26 and the locking groove 24 can move linearly, under the elastic action of the elastic button 25, the locking rod 26 starts to be far away from the contraction piece 23, the contraction piece 23 starts to contract and contracts into the locking groove 24, and the locking release of the firing button 21 is completed.
In the operation process: drive mechanism drives driving piece 4 through actuating handle 2 control and moves in drive guide assembly 3, and when driving piece 4 removed, under drive guide way 32 and reset spring 33's restriction, driving piece 4 removed at drive guide way 32 bottom activity, middle level and the top layer of "oneself" font structure respectively: when the driving piece 4 moves in the range of the bottom layer of the driving guide groove 32 with the structure of the Chinese character 'ji', the movable cutting sleeve 5 is connected with a firing rod positioned at the bottom side of the slender body 1, and the driving piece 4 drives the firing rod to perform surgical operation; because the return spring 33 is located above the proximal end of the driving guide frame 31, when the driving member 4 moves to the middle layer of the driving guide groove 32 with the Chinese character 'ji' shape, the driving force of the driving mechanism is terminated, under the action of the return spring 33, the driving member 4 enters the top layer range of the driving guide groove 32 with the Chinese character 'ji' shape to move, during the movement, the movable cutting sleeve 5 is connected with the firing rod located at the top side of the slender body 1, and the driving member 4 drives the firing rod to perform another operation; in the process, the driving handle 2 is controlled by only one hand, the driving part 4 is driven by the driving mechanism to move in different degrees, the driving part 4 can respectively drive different firing rods to operate under the action of the driving guide component 3 so as to complete the operation of firing and returning when the electric anastomat is used for operation, the double-hand operation is not needed, the problems that the human body tissues of a patient are torn by the executing end of the anastomat due to the shaking of the driving handle 2 caused by the double-hand operation during the operation are avoided, and the pain of the patient caused by the operation is reduced;
before the driving part 4 moves, the movable cutting sleeve 5 which moves synchronously with the driving part is connected with a firing rod positioned on one side of the bottom end, and the driving part 4 can move in the range of the bottom layer of the driving guide groove 32 to drive the firing rod to perform surgical operation until the operation is finished; the driving part 4 continuously moves forwards in the bottom layer of the driving guide groove 32 and moves to the reset positions of the bottom layer and the middle layer, the movable cutting sleeve 5 and the firing rod are released from the clamping state, the movable cutting sleeve starts to enter the middle layer of the driving guide groove 32 with the structure of the Chinese character 'ji' under the action of the reset spring 33, the driving handle 2 controls the driving mechanism to stop providing driving force, the driving part 4 loses driving, and the driving part 4 drives the movable cutting sleeve 5 to start to retreat in the middle layer of the driving guide groove 32 with the structure of the Chinese character 'ji' along with the contraction of the reset spring 33; after the cutting tool retreats to the position where the middle layer of the driving guide groove 32 with the structure in the shape of the Chinese character 'ji' is communicated with the top layer, the driving piece 4 is positioned at the near end of the top layer of the driving guide groove 32 with the structure in the shape of the Chinese character 'ji', the driving piece 4 is driven to move forwards by controlling the driving mechanism through the driving handle 2 again, the movable cutting sleeve 5 is clamped with another firing rod during moving, the driving piece 4 can move in the range of the top layer of the driving guide groove 32 and drive the firing rod to perform surgical operation, and the cutting and anastomotic process is completed.
When the movable push rod 41 moves in the driving guide groove 32, the driving guide groove 32 composed of the first pushing guide groove 321, the reset guide groove 322 and the second pushing guide groove 323 firstly moves the driving piece 4 in the first pushing guide groove 321, so that the opening and closing action of the executing end of the anastomat can be realized; after the executing end is clamped at the human tissue of the patient, the operation of other operations needs to be completed by resetting, and the driving piece 4 is continuously driven to move towards the front of the first propelling guide groove 321, namely, the far end of the guide frame 31 is driven; the driving member 4 is moved to the connection between the first pushing guide slot 321 and the reset guide slot 322, and moreover, the corner of the connection is set to be an inclined chamfer, so that after the driving member 4 is moved to the foremost position of the first pushing guide slot 321, it moves along the inclined chamfer and moves into the reset guide slot 322, the driving member 4 stops driving, at this time, under the action of the reset spring 33, the driving member 4 moves to the proximal end of the driving guide frame 31 along the reset guide slot 322 until it moves to the connection between the reset guide slot 322 and the second pushing guide slot 323 and approaches the upper side of the second pushing guide slot 323, at this time, the driving member 4 is driven to move forward again by the driving mechanism, the driving member 4 moves in the second pushing guide slot 323, and the cutting and anastomosis action of the anastomat can be realized;
in addition, an elastic support plate 34 capable of being turned upwards is arranged at the end part of the partition plate at the communication part of the reset guide groove 322 and the second pushing guide groove 323, the elastic support plate 34 is normally in the same plane with the partition plate, a driving gear 341 is arranged in the partition plate, when the moving push rod 41 moves from the reset guide groove 322 to the inlet end of the second pushing guide groove 323, the moving push rod 41 pushes the driving gear 341 to rotate, so that the elastic support plate 34 is turned over, at the moment, the communication part of the reset guide groove 322 and the second pushing guide groove 323 is in an open state, until the moving push rod 41 exceeds the partition plate, the elastic support plate 34 is in a horizontal state again under the action of elasticity, and the moving push rod 41 is supported in the second pushing guide groove 323; when the moving push rod 41 moves proximally in the second pushing guide groove 323, the moving push rod 41 pushes the driving gear 341 to rotate, so that the elastic support plate 34 is turned over, at this time, the communication position between the reset guide groove 322 and the second pushing guide groove 323 is in an open state, until the moving push rod 41 exceeds the partition plate, the elastic support plate 34 is in a horizontal state again under the action of the elastic force, the moving push rod 41 is pressed in the reset guide groove 322, and the moving push rod 41 cannot push the elastic support plate 34 open under the action of the reset spring 33;
when the moving push rod 41 moves in the driving guide groove 32 and moves in the first pushing guide groove 321, the resetting guide groove 322 and the second pushing guide groove 323 in the driving guide groove 32 respectively, the support rod sleeve 44 is driven by the driving mechanism to drive the multi-stage telescopic rod 43 and the guiding vertical rail 45 above the support rod sleeve to move, the round rods 42 at the two ends of the moving push rod 41 move along with the multi-stage telescopic rod 43 in the same direction, and when the moving push rod 41 switches between the first pushing guide groove 321, the resetting guide groove 322 and the second pushing guide groove 323, the round rods 42 move up and down in the guiding vertical rail 45, so that the moving push rod 41 can move transversely and simultaneously realize longitudinal movement so as to switch among the first pushing guide groove 321, the resetting guide groove 322 and the second pushing guide groove 323;
in the resetting process: the return spring 33 can move in the vertical guide groove 331 under the driving of the guide cross bar 332, when the moving push rod 41 at one end of the return spring 33 moves in the first pushing guide groove 321, the movable latch 334 at the two ends of the guide cross bar 332 is pulled by the return spring 33 and moves along the linkage rack 335 to the middle of the vertical guide groove 331, because the length of the first pushing guide groove 321 is limited, the length of the return spring 33 which is stretched is limited, that is, the pulling force applied to the movable latch 334 is limited, therefore, the movable latch 334 can only rotate to the middle of the vertical guide groove 331, the torsion spring 336 between the guide cross bar 332 and the guide slider 333 twists during rotation and stores elastic potential energy, when the moving push rod 41 moves to the proximal end of the driving guide frame 31, the return spring 33 contracts, the pulling force applied to the movable latch 334 becomes small, the torsion spring 336 begins to retract to release the stored elastic potential energy, so that the movable latch 334 moves along the linked rack 335 to the upper side of the guide vertical slot 331;
when in percussion, the stop block 7 arranged in the middle of the percussion bar is limited by the movable groove 11 arranged in the middle of the slender body 1, so that the percussion bar is prevented from being excessively percussion under the elastic force of the overload spring 51, when the overload spring 51 in the movable cutting sleeve 5 is pushed by the driving piece 4, the overload spring 51 starts to be compressed, and after the overload spring 51 is compressed to a certain degree, the percussion bar is pushed by the overload spring 51 to move forwards; when the far end of the trigger rod is mechanically locked, the overload spring 51 cannot push the trigger rod after being pushed to continuously compress, the overload spring 51 compresses and drives the slide piece 53 to push the overload probe rod 54 to move towards the movable limiting block 52 until the overload probe rod 54 contacts with the movable limiting block 52 and pushes the movable limiting block 52 to contract towards the inner wall of the movable clamping sleeve 5, so that the limit on the overload spring 51 is relieved, the overload spring 51 releases elastic potential energy towards the inner side of the movable clamping sleeve 5 at the moment, the pushing force on the trigger rod is reduced, and the phenomena that the executing end of the anastomat is broken and falls off in a human body when the far end of the trigger rod is mechanically locked are avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a disposable electronic chamber mirror anastomat which characterized in that includes: the long body (1) is positioned at the far end of the driving handle (2) and extends to the execution end of the electric anastomat, and the long body (1) is used for linking the execution end; the driving guide assembly (3), the driving guide assembly (3) comprises a driving guide frame (31), a driving guide groove (32) and a return spring (33); the driving guide frame (31) is connected with the inner cavity of the driving handle (2), the driving guide groove (32) is positioned on the inner side of the driving guide frame (31), the reset spring (33) is positioned above the near end of the driving guide frame (31), a driving piece (4) is arranged in the driving guide groove (32), and the driving piece (4) is connected with a driving mechanism; the driving guide groove (32) is of a structure in a shape like Chinese character 'ji', and under the limit of the driving guide groove (32), the driving piece (4) is positioned at the bottom end of the driving guide groove (32), moves forwards for a certain distance, enters the middle part of the driving guide groove (32), and retreats under the action of the return spring (33); a movable clamping sleeve (5) is arranged between the driving guide assembly (3) and the slender body (1), and the movable clamping sleeve (5) moves along with the driving piece (4) and is respectively clamped and matched with different firing rods in the slender body (1);
the driving piece (4) comprises a movable push rod (41), the movable push rod (41) is located in the driving guide groove (32), the movable clamping sleeve (5) is arranged at the far end of the movable push rod (41), two sides of the movable push rod (41) extend to the outer portions of two sides of the driving guide groove (32), round rods (42) are arranged at two ends of the movable push rod (41), a multi-stage telescopic rod (43) is connected outside the round rods (42), a support rod sleeve (44) is arranged at the bottom of the multi-stage telescopic rod (43), the bottom of the multi-stage telescopic rod (43) is in sliding sleeve connection with the upper end of the support rod sleeve (44), vertical guide rails (45) are arranged on two sides above the support rod sleeve (44), the round rods (42) move in the vertical guide rails (45), and a driving plate (46) is arranged at the bottom of the support rod sleeve (44);
the round rod (42) is connected with the top end of the multi-stage telescopic rod (43), two ends of the round rod (42) are connected with the return spring (33), the movable push rod (41) moves along the driving guide groove (32) under the action of the driving guide groove (32), and the multi-stage telescopic rod (43) ensures that the movable push rod (41) is always connected with the driving mechanism when moving; the driving mechanism comprises a driving motor (6), the driving motor (6) is located in the driving handle (2), a shaft rod (61) is arranged at the output end of the driving motor (6), a driving screw rod (62) is arranged at the end part of the shaft rod (61), driving teeth (461) are arranged at the bottom of the driving plate (46), and the driving screw rod (62) is matched with the driving teeth (461) at the bottom of the driving plate (46).
2. The disposable electric endoscopic stapler according to claim 1, wherein: drive guide way (32) are by supreme first propulsion guide way (321), reset guide way (322) and the second propulsion guide way (323) of including down, first propulsion guide way (321) reset guide way (322) and second propulsion guide way (323) are horizontal setting, first propulsion guide way (321) are located the downside of drive leading truck (31), reset guide way (322) are located first propulsion guide way (321) top, just the distal end of reset guide way (322) with the distal end intercommunication of first propulsion guide way (321), second propulsion guide way (323) are located the top of reset guide way (322), the proximal end of reset guide way (322) with the proximal end intercommunication of second propulsion guide way (323).
3. The disposable electric endoscopic stapler according to claim 1, wherein: reset spring (33) are located one side of drive leading truck (31) near-end top is provided with the direction and erects groove (331), reset spring (33) through direction horizontal pole (332) with the direction is erect groove (331) and is connected, direction horizontal pole (332) both ends are located the direction erects inside guide slider (333) that is provided with of groove (331), direction horizontal pole (332) with guide slider (333) rotate to be connected, be provided with movable latch (334) on direction horizontal pole (332), the direction is erect groove (331) inboard and is provided with linkage rack (335), activity latch (334) with linkage rack (335) meshing sets up, direction horizontal pole (332) with be provided with torsional spring (336) between guide slider (333).
4. The disposable electric endoscopic stapler according to claim 1, wherein: drive handle (2) the place ahead is provided with firing button (21), firing button (21) middle part be provided with pivot (22) with drive handle (2) rotate to be connected, firing button (21) top the place ahead is provided with shrink piece (23), shrink piece (23) set up in locking groove (24), locking groove (24) with drive handle (2) inner chamber fixed connection, locking groove (24) both ends are provided with elastic button (25), elastic button (25) are relative locking groove (24) linear movement.
5. The disposable electric endoscopic stapler according to claim 4, wherein: every all be provided with locking lever (26) in elastic button (25), shrink piece (23) set up two between locking lever (26), locking lever (26) with be provided with the locking piece between locking groove (24) both ends, two locking lever (26) are to the middle part extrusion in-process, the locking piece with be in linear locking state between locking lever (26), two locking lever (26) extrude to the middle part to in locking groove (24), the locking piece with be in linear release state between locking lever (26).
6. The disposable electric endoscopic stapler according to claim 5, wherein: an overload spring (51) is arranged in the movable cutting sleeve (5), a movable limiting block (52) is arranged between the tail part of the overload spring (51) and the movable cutting sleeve (5), and the movable limiting block (52) stretches relative to the inner wall of the movable cutting sleeve (5); overload spring (51) other end is provided with crosses slide glass (53), cross slide glass (53) and be located overload spring (51) one side in is provided with overload probe rod (54), overload spring (51) compress to overload probe rod (54) contact when activity stopper (52), overload probe rod (54) promote activity stopper (52) relieve the spacing of overload spring (51).
7. The disposable electric endoscopic stapler according to claim 6, wherein: the middle part of the firing rod is provided with a stop block (7), the middle part of the slender body (1) is provided with a movable groove (11), the movable groove (11) is used for limiting the moving range of the stop block (7), the near end of the firing rod is provided with a movable clamping block (71), and the movable clamping block (71) is matched with the movable clamping sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210584090.8A CN114948039A (en) | 2022-05-27 | 2022-05-27 | Disposable electric endoscope anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210584090.8A CN114948039A (en) | 2022-05-27 | 2022-05-27 | Disposable electric endoscope anastomat |
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| Publication Number | Publication Date |
|---|---|
| CN114948039A true CN114948039A (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210584090.8A Pending CN114948039A (en) | 2022-05-27 | 2022-05-27 | Disposable electric endoscope anastomat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117426807A (en) * | 2023-12-18 | 2024-01-23 | 中国医学科学院北京协和医院 | Vascular infrared positioning system used in laparoscopic surgery |
-
2022
- 2022-05-27 CN CN202210584090.8A patent/CN114948039A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117426807A (en) * | 2023-12-18 | 2024-01-23 | 中国医学科学院北京协和医院 | Vascular infrared positioning system used in laparoscopic surgery |
| CN117426807B (en) * | 2023-12-18 | 2024-03-12 | 中国医学科学院北京协和医院 | Vascular infrared positioning system used in laparoscopic surgery |
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