CN215839274U

CN215839274U - High-stability full-electric endoscope cutting anastomat

Info

Publication number: CN215839274U
Application number: CN202122408213.6U
Authority: CN
Inventors: 王海龙; 吴宇雷; 王伟
Original assignee: Changzhou Wake Medical Devices Co ltd
Current assignee: Changzhou Wake Medical Devices Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-02-18
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to the technical field of anastomats, in particular to a full-electric endoscope cutting anastomat with high stability, which comprises a nail bin assembly, a gun barrel assembly, a rotary driving assembly, a rotary cover and an anastomat main body, wherein the rotary driving assembly drives the rotary cover to rotate so as to enable the nail bin assembly to rotate; the rotary driving assembly comprises an inner gear ring, a gear and a motor, the outer peripheral wall of the inner gear ring is connected with the inner peripheral wall profile of the rotary cover, the motor is located in the anastomat main body, the output end of the motor is in transmission connection with the gear, and the tooth part on the inner side of the inner gear ring is meshed with the gear. According to the high-stability full-electric endoscope cutting anastomat, the inner gear ring and the rotary cover are connected through the molded surface, the molded surface is connected to transmit large torque, the efficiency is high, meanwhile, impact load can be borne, and the phenomenon that the inner gear ring and the rotary cover slip can be avoided.

Description

High-stability full-electric endoscope cutting anastomat

Technical Field

The utility model relates to the technical field of anastomats, in particular to a full-electric endoscope cutting anastomat with high stability.

Background

An endoscopic stapler (an endoscopic cutting stapler and a disposable nail box) is one of important instruments for endoscopic surgery, replaces the traditional manual suture, utilizes titanium nails to break or inosculate tissues, is simple and rapid to operate, and greatly shortens the operation time. The endoscope anastomat enables the anastomosis with narrow surgical field and deeper part which is difficult to manually operate to become easy, accurate, firm and reliable, and obviously reduces the incidence rate of anastomotic fistula.

The anastomat can be divided into a manual stapler and an electric stapler according to different power transmission modes. Different from the mechanical control of the traditional manual endoscope anastomat, the electric endoscope anastomat cuts off tissues between two anastomotic nails when the anastomotic nails are triggered through power sensing. The electric endoscope anastomat can hit three rows of staggered anastomosis nails at two sides and is provided with disposable lithium battery packs.

Chinese patent application No. 202010970275.3 discloses a surgical cutting and stapling instrument having a motorized rotator comprising: the device comprises a rotating motor, a rotating bearing and an inner gear ring, wherein one end of a rotator shell is fixed on the outer side of the inner gear ring, the outer peripheral surface of the inner gear ring is a circular surface, the inner gear ring and the rotator shell are fixed in a clearance fit or interference fit mode, and the fixing mode is easy to generate a slipping phenomenon when the inner gear ring drives the rotator shell to rotate, so that the rotating angle of a nail bin assembly is inaccurate, an anastomotic position is mistaken, the optimal cutting and sewing position cannot be reached, and the recovery of a patient is influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: in order to overcome the problems that the peripheral surface of an inner gear ring is a circular surface, the inner gear ring and a rotator shell are fixed in a clearance fit or interference fit mode, the inner gear ring drives the rotator shell to rotate in a mode of slipping easily, and the rotating angle of a nail bin assembly is inaccurate, the full-electric endoscope cutting anastomat with high stability is provided, the inner gear ring and a rotating cover are connected through a molded surface, the molded surface is connected with the rotating cover to transmit large torque, the efficiency is high, impact load can be borne, the slipping phenomenon between the inner gear ring and the rotating cover can be avoided, the rotating angle of the nail bin assembly is accurate, and therefore the best matching position is achieved.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a high-stability full-electric endoscope cutting anastomat comprises a nail bin assembly, a gun barrel assembly, a rotary driving assembly, a rotary cover and an anastomat body, wherein the tail end of the nail bin assembly is detachably and fixedly connected with the head end of the gun barrel assembly, the tail end of the gun barrel assembly is fixedly connected with the head end of the rotary cover, the tail end of the rotary cover is rotatably connected with the anastomat body, and the rotary driving assembly drives the rotary cover to rotate so that the nail bin assembly rotates;

the rotary driving assembly comprises an inner gear ring, a gear and a motor, the outer peripheral wall of the inner gear ring is connected with the inner peripheral wall profile of the rotary cover, the motor is located in the anastomat main body, the output end of the motor is in transmission connection with the gear, and the tooth part on the inner side of the inner gear ring is meshed with the gear.

In order to solve the problem of structural arrangement of profile connection, the outer peripheral wall of the inner gear ring is provided with at least one outer transmission surface, the inner peripheral wall of the rotating cover is provided with inner transmission surfaces matched with the outer transmission surfaces, the outer transmission surfaces correspond to the inner transmission surfaces in a one-to-one manner, the outer transmission surfaces are attached to the corresponding inner transmission surfaces, and the outer transmission surfaces of the outer peripheral wall of the inner gear ring are enabled to be incapable of rotating relative to the rotating cover, so that the transmission of torque is ensured.

In order to solve the problem of the structure of the outer transmission surface, the outer transmission surface on the peripheral wall of the inner gear ring is a plane.

In order to solve the problem of axial fixation of the inner gear ring, the inner peripheral wall of the rotary cover is provided with a clamping groove matched with the outer peripheral wall of the inner gear ring, and the outer peripheral wall of the inner gear ring is clamped in the clamping groove.

In order to solve the problems that the other end of the output shaft of the motor in the prior art is not fixed, so that the output shaft shakes in the transmission process with the gear, on one hand, the swinging of the rotary cover and the nail bin assembly is caused to damage a human body when the rotary cover and the nail bin assembly rotate, on the other hand, the transmission between the inner gear ring and the gear is unstable, the rotary driving assembly further comprises a fixed seat and a shaft sleeve, the head end of the fixed seat is rotationally connected with the inner peripheral wall of the rotary cover, the tail end of the fixed seat is fixedly connected with the anastomat main body, the motor is arranged in the fixed seat, one end of the shaft sleeve is rotationally connected with the fixed seat, the other end of the shaft sleeve is in transmission connection with the output end of the motor, the gear is sleeved on the shaft sleeve, and the internal perisporium of gear and the periphery wall fixed connection of axle sleeve, the both ends of axle sleeve all have fixedly to the increase orders about the gear in-process at the motor, the rotatory stability of gear.

In order to further improve the stability of gear, further include set up in the fixing base have with axle sleeve assorted rotation chamber, the axle sleeve is inserted and is established and rotate the intracavity, rotates the chamber and can restrict axle sleeve rotation range to further provide the stability of gear.

The utility model has the beneficial effects that: according to the high-stability full-electric endoscope cutting anastomat, the inner gear ring and the rotary cover are connected through the molded surface, the molded surface is connected and transmits large torque, the efficiency is high, meanwhile, impact load can be borne, the slipping phenomenon between the inner gear ring and the rotary cover can be avoided, the rotating angle of a nail bin assembly is accurate, and therefore the best anastomosis position is guaranteed.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view taken at A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 3 in accordance with the present invention;

FIG. 5 is an enlarged view of the structure of FIG. 3 at B in accordance with the present invention;

FIG. 6 is a schematic structural view of the ring gear of the present invention;

FIG. 7 is a schematic cross-sectional view at C-C of FIG. 2 of the present invention;

fig. 8 is an enlarged view of the structure of fig. 7 at D according to the present invention.

In the figure: 1. the stapler comprises a nail bin component, a barrel component, a rotating driving component, a gear 31, an inner gear ring, a gear 311, an outer driving surface, a gear 32, a gear 33, a motor 34, a fixed seat 342, a rotating cavity 35, a shaft sleeve 4, a rotating cover 41, an inner driving surface 42, a clamping groove 5 and a stapler body.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1 and 2, the full-electric endoscope cutting anastomat with high stability comprises a nail cartridge assembly 1, a gun barrel assembly 2, a rotary driving assembly 3, a rotary cover 4 and an anastomat body 5, wherein the tail end of the nail cartridge assembly 1 is detachably and fixedly connected with the head end of the gun barrel assembly 2, the tail end of the gun barrel assembly 2 is fixedly connected with the head end of the rotary cover 4, the tail end of the rotary cover 4 is rotatably connected with the anastomat body 5, and the rotary driving assembly 3 drives the rotary cover 4 to rotate so as to enable the nail cartridge assembly 1 to rotate;

as shown in fig. 3, 4 and 5, the rotary driving assembly 3 includes an inner gear ring 31, a gear 32 and a motor 33, an outer peripheral wall of the inner gear ring 31 is in molded connection with an inner peripheral wall of the rotary cover 4, the motor 33 is located in the stapler body 5, the motor 33 is a motor, an output end of the motor 33 is in transmission connection with the gear 32, a tooth portion on an inner side of the inner gear ring 31 is engaged with the gear 32, the inner gear ring 31 is in molded connection with the rotary cover 4, the molded connection transmits large torque and has high efficiency and can bear impact load at the same time, so that a slip phenomenon between the inner gear ring 31 and the rotary cover 4 can be avoided, a rotation angle of the magazine assembly 1 is accurate, and an optimal anastomosis position is ensured.

As shown in fig. 6, 7 and 8, the outer circumferential wall of the ring gear 31 has at least one outer transmission surface 311, the outer transmission surface 311 on the outer circumferential wall of the ring gear 31 is a plane, the inner circumferential wall of the rotary cover 4 has inner transmission surfaces 41 matching with the outer transmission surfaces 311, the outer transmission surfaces 311 correspond to the inner transmission surfaces 41 one by one, the outer transmission surfaces 311 are attached to the corresponding inner transmission surfaces 41, and the outer transmission surfaces of the outer circumferential wall of the ring gear 31 prevent relative rotation between the ring gear and the rotary cover 4, thereby ensuring torque transmission.

As shown in fig. 6, 7 and 8, a locking groove 42 matched with the outer peripheral wall of the ring gear 31 is formed in the inner peripheral wall of the rotary cover 4, and the outer peripheral wall of the ring gear 31 is locked in the locking groove 42.

As shown in fig. 4 and 5, the rotary driving assembly 3 further includes a fixing seat 34 and a shaft sleeve 35, the head end of the fixing seat 34 is rotatably connected to the inner peripheral wall of the rotary cover 4, the tail end of the fixing seat 34 is fixedly connected to the anastomat main body 5, the fixing seat 34 and the anastomat main body 5 can be in a split structure or an integrated structure, the motor 33 is installed in the fixing seat 34, one end of the shaft sleeve 35 is rotatably connected to the fixing seat 34, the other end of the shaft sleeve 35 is in transmission connection with the output end of the motor 33, the gear 32 is sleeved on the shaft sleeve 35, the inner peripheral wall of the gear 32 is fixedly connected to the outer peripheral wall of the shaft sleeve 35, the gear 32 and the shaft sleeve 35 can be in an integrated structure or a split structure, both ends of the shaft sleeve 35 are fixed, so as to increase the stability of rotation of the gear 32 in the process of driving the motor 32, and when there is no shaft sleeve 35, the rotating shaft of the motor 33 is rotatably connected to the fixing seat 34, the gear 32 is fixed on the rotating shaft in a sleeved mode.

As shown in fig. 4 and 5, a rotation cavity 342 is formed in the fixed seat 34 and is matched with the shaft sleeve 35, the shaft sleeve 35 is inserted into the rotation cavity 342, and the rotation cavity 342 can limit the rotation range of the shaft sleeve 35, thereby further providing stability for the gear 32.

During the use, the start and stop of motor 33 is installed through the control button on anastomat main part 5, motor 33 starts, thereby the pivot of motor 33 and axle sleeve 35 transmission are connected and drive axle sleeve 35 and rotate, because the one end and the fixing base of axle sleeve 35 rotate and are connected, the other end of axle sleeve 35 is located and rotates chamber 342, make axle sleeve stability greatly increased, axle sleeve 32 drives gear 32 and rotates, the flank of tooth of the periphery wall of gear 32 and the flank of the internal perisporium of ring gear 31 mesh, after gear 32 transmits power to ring gear 31, ring gear 31 drive swivel cap 4, swivel cap 4 makes the rotation of nail storehouse subassembly 1 through barrel subassembly 2.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The full-electric endoscope cutting anastomat with high stability is characterized by comprising a nail bin assembly (1), a gun barrel assembly (2), a rotary driving assembly (3), a rotary cover (4) and an anastomat body (5), wherein the tail end of the nail bin assembly (1) is detachably and fixedly connected with the head end of the gun barrel assembly (2), the tail end of the gun barrel assembly (2) is fixedly connected with the head end of the rotary cover (4), and the tail end of the rotary cover (4) is rotatably connected with the anastomat body (5);

the rotary driving assembly (3) comprises an inner gear ring (31), a gear (32) and a motor (33), the outer peripheral wall of the inner gear ring (31) is connected with the profile of the inner peripheral wall of the rotary cover (4), the motor (33) is positioned in the anastomat body (5), the output end of the motor (33) is in transmission connection with the gear (32), and the inner tooth part of the inner gear ring (31) is meshed with the gear (32).

2. The fully-electric endoscopic cutting stapler with high stability as claimed in claim 1, wherein: the outer peripheral wall of the inner gear ring (31) is provided with at least one outer transmission surface (311), the inner peripheral wall of the rotating cover (4) is provided with inner transmission surfaces (41) matched with the outer transmission surfaces (311), the outer transmission surfaces (311) correspond to the inner transmission surfaces (41) in a one-to-one mode, and the outer transmission surfaces (311) are attached to the corresponding inner transmission surfaces (41).

3. The fully-electric endoscopic cutting stapler with high stability as claimed in claim 1, wherein: and the outer transmission surface (311) on the outer peripheral wall of the inner gear ring (31) is a plane.

4. The fully-electric endoscopic cutting stapler with high stability as claimed in claim 1, wherein: the inner peripheral wall of the rotating cover (4) is provided with a clamping groove (42) matched with the outer peripheral wall of the inner gear ring (31), and the outer peripheral wall of the inner gear ring (31) is clamped in the clamping groove (42).

5. The fully-electric endoscopic cutting stapler with high stability as claimed in claim 1, wherein: rotatory drive assembly (3) still include fixing base (34) and axle sleeve (35), the head end and the internal perisporium of rotatory lid (4) of fixing base (34) rotate to be connected, the tail end and anastomat main part (5) fixed connection of fixing base (34), install in fixing base (34) motor (33), the one end and the fixing base (34) of axle sleeve (35) rotate to be connected, the other end of axle sleeve (35) and the output transmission of motor (33) are connected, gear (32) suit is on axle sleeve (35), just the internal perisporium of gear (32) and the periphery wall fixed connection of axle sleeve (35).

6. A highly stable all-electric endoscopic cutting stapler according to claim 3, wherein: the fixed seat (34) is internally provided with a rotating cavity (342) matched with the shaft sleeve (35), and the shaft sleeve (35) is inserted in the rotating cavity (342).