CN213129866U - Anvil screw driving mechanism of endoscope nailing device for implementing stomach fundus folding operation - Google Patents

Abstract

The utility model discloses a chopping block screw driving mechanism of an endoscope nailing device for implementing gastric fundoplication, which comprises a chopping block driving shaft, wherein the chopping block driving shaft can rotate under the driving of power; a driving gear is arranged on the chopping board driving shaft; a driven gear engaged with the driving gear; the chopping board screw is fixedly connected with the driven gear; the chopping board screw is movably arranged in the chopping board screw penetrating hole of the chopping board; the chopping board screw guide seat is fixedly arranged at the bottom of the chopping board; the chopping board screw guide seat is connected with the chopping board screw through threads. The utility model discloses a power drives the chopping block drive shaft rotatory, drives two chopping block screw synchronous motion, makes the chopping block screw carry out concertina movement for the chopping block to realize the cooperation between chopping block screw and the chopping block screw mating holes, so that top portion and rigidity section relative positioning guarantee to nail the precision.

Description

Anvil screw driving mechanism of endoscope nailing device for implementing stomach fundus folding operation

Technical Field

The utility model relates to an accessory of minimally invasive surgery treatment instrument, in particular to a chopping block screw driving mechanism of an endoscope nailing device for implementing stomach fundus folding operation.

Background

Gastroesophageal reflux disease (GERD) refers to the reflux of excess contents of the stomach or duodenum into the esophagus, causing symptoms such as acid regurgitation, heartburn, and the like, and may cause esophagitis and tissue damage other than the esophagus, such as the pharynx, larynx, trachea, and the like. Gastroesophageal reflux disease (GERD) is a common disease in Western countries, and studies have shown that the incidence rate of gastroesophageal reflux disease in Western countries is about 10% -20%, Australia is about 11.6%, and Asian is about 5% in recent years. The incidence rate increases with the age, and the age of 40-60 years is the peak incidence age, and men and women have no difference, but patients with reflux esophagitis are more male than female. With the improvement of the living standard of residents, the requirements of people on the quality of life are continuously improved, and the gastroesophageal reflux prevalence rate is 5.77 percent in China according to the statistics of the digestive disease society of the Chinese medical society. Patients with gastroesophageal reflux disease in general can be cured by changing lifestyle or medication. However, some patients with cardia laxity or hiatal hernia have poor effects after drug treatment, some patients can only solve part of symptoms after drug treatment, and some patients need to insist on taking the medicine for a long time, and the patients need to be treated by surgical operation. Studies have shown that about 25% to 30% of patients with GERD have poor drug therapy or are intolerant of long-term medication and require surgical treatment.

The existing surgical treatment of gastroesophageal reflux disease generally adopts laparoscopic fundoplication or endoscopic suturing technology and radio frequency ablation technology, although the problem of repeated attack of symptoms can be solved, postoperative complications are often accompanied, and the postoperative quality of life is greatly influenced, so the mode of surgical treatment of gastroesophageal reflux disease is not popularized, and once the gastroesophageal reflux disease is suffered, the quality of life of a patient is obviously reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a carry out scope nailing device's at bottom of stomach folding art chopping block screw actuating mechanism is provided, it can drive the chopping block screw and make reciprocating motion to realize that the cooperation between chopping block screw and the chopping block screw mating holes is connected.

In order to solve the technical problem, the utility model discloses implement the technical solution of chopping block screw actuating mechanism of scope nailing device of stomach end folding art and do:

the method comprises the following steps: an anvil driving shaft 6-4 which can rotate under power drive; a driving gear is arranged on the chopping board driving shaft 6-4; a driven gear 6-5 engaging the drive gear; a chopping board screw 6-3 fixedly connected with the driven gear 6-5; the chopping board screw 6-3 is movably arranged in the chopping board screw penetrating hole 6-2-1 of the chopping board 6-2 in a penetrating way; the chopping board screw guide seat 6-6 is fixedly arranged at the bottom of the chopping board 6-2; the chopping board screw guide seat 6-6 is connected with the chopping board screw 6-3 through threads.

In another embodiment, two driven gears 6-5 are engaged with two sides of the driving gear.

In another embodiment, the anvil screw guide seats 6-6 are coaxially and one-to-one corresponding to the driven gears 6-5.

In another embodiment, the device further comprises a driven gear positioning pin 6-7 fixedly arranged at the bottom of the driven gear 6-5.

In another embodiment, the driven gear positioning pin 6-7 is fixedly arranged in the driven gear positioning pin hole 6-1-9 of the top seat 6-1 in a penetrating mode.

In another embodiment, the free end of the anvil screw 6-3 is pointed.

In another embodiment, the anvil screw 6-3 mates with an anvil screw mating hole 4-3-4 provided in the rigid section 4.

In another embodiment, the anvil screw engaging hole 4-3-4 has a hole depth less than the length of the anvil screw 6-3 extending out of the anvil 6-2.

The utility model discloses the technological effect that can reach is:

the utility model discloses a power (if electronic or manual) drives the chopping block drive shaft rotatory, drives two chopping block screw synchronous motion, makes the chopping block screw carry out concertina movement for the chopping block to realize the cooperation between chopping block screw and the chopping block screw mating holes, so that top portion and rigidity section relative positioning guarantee to sew the precision.

The utility model discloses a chopping block screw guide holder leads to the concertina movement of chopping block screw to can the stroke of accurate control chopping block screw.

The utility model discloses a stroke of accurate control chopping block screw can be treated the tissue of stitching and extrude the location to make the nail leg of the in-process titanium nail of stitching after bending titanium nail can closely fix two-layer tissue together and can not take place to separate, thereby can ensure that the His angle of new formation can not change for a long time.

The utility model discloses a stroke of accurate control chopping block screw can confirm the nailing thickness of titanium nail to ensure that the titanium nail can accurately launch to the titanium nail of chopping block on the guide way of bending, make the device can be applicable to different crowds, even lead to the thickness difference of individual stomach end and the two-layer tissue of esophagus because the physique is different, can not produce the phenomenon that the nailing is not firm, the operation effect descends yet.

Drawings

It is to be understood by those skilled in the art that the following description is merely exemplary in nature and that the principles of the present invention may be applied in numerous ways to achieve many different alternative embodiments. These descriptions are only used to illustrate the general principles of the teachings of the present invention and are not meant to limit the inventive concepts disclosed herein.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the general description given above and the detailed description of the drawings given below, serve to explain the principles of the invention.

The invention will be described in further detail with reference to the following drawings and detailed description:

FIG. 1 is a schematic view of an endoscopic stapling device for performing fundoplication in accordance with the present invention;

fig. 2 to 7 are schematic views of the operation process of the present invention;

fig. 8 is a schematic view of a titanium nail according to the present invention, the titanium nail being shown in an original state;

FIG. 9 is a schematic view of a titanium nail according to the present invention, shown in a nailed condition;

fig. 10 is an exploded schematic view of the rigid section assembly of the present invention;

fig. 11 is a schematic view of the tip end portion of the present invention;

fig. 12 is a schematic end view of the tip end portion of the present invention;

FIG. 13 is a schematic sectional view A-A of FIG. 12;

figure 14 is a schematic view of an anvil of the present invention;

fig. 15 is an exploded schematic view of the tip end portion of the present invention;

fig. 16 is a schematic sectional view of the tip end portion of the present invention;

FIG. 17 is an exploded view of the anvil screw driving mechanism of the present invention;

fig. 18 is a schematic view of a top end mount of the present invention;

fig. 19 is a side schematic view of the top end mount of the present invention;

fig. 20 is a schematic sectional view B-B of fig. 19.

The reference numbers in the figures illustrate:

100 is an endoscope nailing device which comprises a nail head,

1 is a handle, 2 is a conical protective sleeve,

3 is an insertion tube, 4 is a rigid section,

5 is a bending part, 6 is a top end part,

an angle tracking sensor 7, a miniature camera 8,

9 is an LED lamp, 10 is an ultrasonic detector,

the positioning pin 11 is an end positioning pin,

4-1 is a rigid section shell, 4-2 is a sensor positioning disk,

4-3 is a nail bin seat, 4-4 is a titanium nail,

4-5 are ultrasonic wave reflecting mirrors,

4-2-1 is a sensor positioning groove,

6-1 is a top seat, 6-2 is a chopping block,

6-3 is a chopping board screw, 6-4 is a chopping board driving shaft,

6-5 is a driven gear, 6-6 is a screw guide seat of the chopping board,

6-7 are driven gear positioning pins, 6-8 are chopping block positioning pins,

6-1-1 is a top seat body, 6-1-2 is a chopping block positioning groove,

6-1-3 is a cutting board driving shaft through hole, 6-1-4 is a driven gear shaft through hole,

6-1-5 is an LED lamp positioning hole, 6-1-6 is a micro camera positioning hole,

6-1-7 is an ultrasonic detector mounting hole, 6-1-8 is an end positioning pin accommodating hole,

6-1-9 is a driven gear positioning pin through hole, 6-1-10 is a limit boss,

6-2-0 is the chopping block body, 6-2-1 is the chopping block screw through hole,

6-2-2, 6-2-3, 6-2-4, 6-2-5 and 6-2-6 are titanium nail bending guide grooves,

6-2-7 is a first baffle lug, 6-2-8 is a second baffle lug,

7-1 is an angle tracking sensor signal line,

the esophagus 201 and the stomach 202 are shown.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.

As shown in fig. 1, the endoscope stapling device 100 for performing fundoplication comprises a handle 1, a tapered protective sleeve 2, an insertion tube 3, a rigid section 4, a bending portion 5, and a top portion 6, wherein the front end of the handle 1 is fixedly connected with the insertion tube 3 through the tapered protective sleeve 2, and the front end of the insertion tube 3 is sequentially and fixedly connected with the rigid section 4, the bending portion 5, and the top portion 6; the side surface of the rigid section 4 and the end surface of the top end part 6 form a nailing mechanism;

the outer diameters of the insertion tube 3, the rigid section 4, the bending section 5 and the tip section 6 are smaller than the inner diameter of the esophagus 201, so that the front end of the endoscopic stapling apparatus can be inserted into the stomach 202 through the esophagus 201 through the oral cavity;

the handle 1 is provided with a bending angle control mechanism which can control the bending angle of the bending part 5, so that the included angle between the top end part 6 at the two ends of the bending part 5 and the rigid section 4 is changed within the range of 0-270 degrees, and the end surface of the top end part 6 is driven to move relative to the side surface of the rigid section 4;

in the initial state, the bending angle of the bending part 5 is 0 degrees, and then the top end part 6, the bending part 5 and the rigid section 4 are on the same straight line; the front end of the endoscopic stapling device 100 (i.e., the tip portion 6, the bending portion 5 and the rigid section 4) is inserted into the stomach 202 through the mouth via the esophagus 201, and the inside of the stomach 202 (e.g., mucosal structure) can be observed by the micro-camera 8 of the tip portion 6, as shown in FIG. 2;

when the rigid segment 4 is positioned at the bottom of the esophagus 201, as shown in fig. 3, the bending angle control mechanism of the handle 1 is manipulated to gradually bend the bending portion 5 to move the tip portion 6 relative to the rigid segment 4, thereby changing the relative position between the end surface of the tip portion 6 and the side surface of the rigid segment 4;

when the bending angle of the bending part 5 reaches 180 degrees, the end face of the top end part 6 is pressed against the inner wall of a part of the fundus stomach; in the course of increasing the bending angle of the bending portion 5 from 180 ° to 270 °, the portion of the fundus is pushed by the end face of the tip portion 6 to move toward the esophageal direction, as shown in fig. 4;

when the bending angle of the bending portion 5 is 270 °, the portion of the fundus is pushed by the end surface of the tip portion 6 to overlap with the lower section of the esophagus, thereby achieving folding of the portion of the fundus with the esophagus, as shown in fig. 5; when the side surface of the rigid section 4 is opposite to the end surface of the top end part 6, the ultrasonic reflector 4-5 of the rigid section 4 can reflect all ultrasonic signals emitted by the ultrasonic detector 10 of the top end part 6 and send the reflected ultrasonic signals to the ultrasonic detector 10, the bending part 5 is bent to the position, and the top end part 6 is in a nailing state;

the end positioning pin 11 is driven by the positioning pin driving motor to extend outwards, so that the tip of the end positioning pin 11 of the top end part 6 passes through two layers of tissues of the fundus and esophagus and extends into the positioning pin hole 4-3-3 of the rigid section 4, the top end part 6 is kept in a nailing state, and the position positioning between the top end part 6 and the rigid section 4 is realized; because the hole depth of the positioning pin hole 4-3-3 is smaller than the extension length of the end positioning pin 11, when the end positioning pin 11 extends to the right position, a distance H1 is formed between the end surface of the top end part 6 and the side surface of the rigid section 4, and the distance H1 is the thickness of two layers of tissues;

then, the two chopping board screws 6-3 are driven by the chopping board screw driving mechanism to extend outwards, so that the tip ends of the chopping board screws 6-3 at the top end part 6 penetrate through the two layers of tissues and are screwed into the chopping board screw matching holes 4-3-4 of the nail bin seat 4-3 of the rigid section 4; in the process that the chopping board screws 6-3 are screwed inwards, the two chopping board screws 6-3 respectively penetrate through the two layers of tissues along the thickness direction and extrude the two layers of tissues together; because the hole depth of the anvil screw fitting hole 4-3-4 is smaller than the extension length of the anvil screw 6-3, when the anvil screw 6-3 extends in place, a distance H2 is formed between the end surface of the top end portion 6 and the side surface of the rigid section 4, and the distance H2 is the nailing thickness of the titanium nail 4-4; h1 > H2; after the chopping board screw 6-3 extends to the right position, the end positioning pin 11 can be retracted;

starting a titanium nail firing mechanism, simultaneously ejecting five titanium nails 4-4 (at the moment, the titanium nails 4-4 are in the shape shown in fig. 8, and the legs of the titanium nails 4-4 are outward) of the nail bin assembly, wherein the titanium nails 4-4 sequentially penetrate through the lower esophageal section and part of the fundus tissue after being ejected, and are subjected to the reaction force of the cutting board 6-2 on the end surface of the top end part 6, so that the two legs of the titanium nails 4-4 are bent inwards to form a B shape shown in fig. 9, and at the moment, the titanium nails 4-4 can nail the lower esophageal section and part of the two layers of fundus tissue together to form a folded nailing part 200 as shown in fig. 6, so that the part is nailed and fixed;

replacing a new nail bin seat assembly, rotating the handle 1 by an angle around the axial direction to enable the end surface of the top end part 6 to contact the inner wall of the other stomach fundus, and realizing the folding and nailing of the other stomach fundus and the lower esophagus segment as shown in fig. 7; according to the practical situation, a plurality of (such as three) folds and staples are implemented around the circumference of the esophagus, so that the circle of His angle alpha around the esophagus is restored to an acute angle, the gastroesophageal flap valve is restored, and an effective barrier for preventing the gastroesophageal reflux is established.

The utility model discloses a tip locating pin 11 realizes the relative position location between top portion 6 and the rigidity section 4 before the stitching to can realize treating the preliminary location of the tissue of stitching, with avoid or reduce the skew that takes place the locating position at the in-process tissue of stitching, thereby improve the operation precision.

The utility model discloses a tissue that the chopping block screw 6-3 was treated to the nailing is extruded and is fixed a position to make the leg of a nail of titanium nail 4-4 in the nailing process after bending titanium nail 4-4 can closely fix two-layer tissue together and can not take place to separate, thereby can ensure that newly formed His angle (gastroesophageal angle) can not change for a long time. Furthermore, the utility model discloses a chopping block screw 6-3 confirms the nailing thickness of titanium nail 4-4 to ensure that titanium nail 4-4 can accurately launch to chopping block 6-2 titanium nail guide slot of bending, make the device can be applicable to different crowds, even the thickness that leads to individual stomach end and the two-layer tissue of esophagus is different because the physique is different, also can not produce the phenomenon that the nailing is not firm, the operation effect descends.

The utility model precisely controls the extending stroke of the chopping board screw 6-3 through the chopping board screw driving mechanism, so that the thickness of the two-layer tissue between the end surface of the top end part 6 and the side surface of the rigid section 4 is gradually reduced and reaches the nailing thickness of the titanium nail 4-4 which can carry out nailing; the thickness variation of the two layers of tissue can be monitored by the ultrasonic detector 10, so that the thickness of the stapled tissue can be accurately controlled.

The utility model discloses well bent angle control mechanism that is used for controlling flexion 5 is prior art, and is no longer repeated here.

As shown in fig. 10, the rigid section 4 includes a rigid section housing 4-1, one end of the rigid section housing 4-1 is fixedly connected with a sensor positioning plate 4-2, a sensor positioning groove 4-2-1 is formed in a side portion of the sensor positioning plate 4-2, and an angle tracking sensor 7 is fixedly arranged in the sensor positioning groove 4-2-1; the angle tracking sensor 7 is connected with one end of an angle tracking sensor signal line 7-1, and the other end of the angle tracking sensor signal line 7-1 is connected with the main board to realize synchronous transmission and feedback of signals;

a nail bin seat groove 4-1-1 extending along the axial direction is formed in the side part of the rigid section shell 4-1, a titanium nail firing part 4-7 is movably arranged in the nail bin seat groove 4-1-1, and the length of the titanium nail firing part 4-7 is smaller than that of the nail bin seat groove 4-1-1; one end of the titanium nail firing part 4-7 is fixedly connected with one end of the launching steel wire 4-8, and the other end of the launching steel wire 4-8 is connected with the handle 1; the launching steel wire 4-8 can be pulled through the control handle 1, so that the titanium nail firing part 4-7 is driven to move back and forth along the nail bin seat groove 4-1-1;

a nail bin seat assembly is arranged in the nail bin seat groove 4-1-1; the nail bin seat assembly comprises a nail bin seat 4-3, the surface of the nail bin seat 4-3 is part of the circumference of the rigid section shell 4-1 (namely the arc-shaped surface of the nail bin seat 4-3 is part of the circumference of the rigid section shell 4-1); five titanium nail accommodating grooves are formed in the nail bin seat 4-3, and titanium nails 4-4 and propellers 4-6 are accommodated in the titanium nail accommodating grooves; the propeller 4-6 is positioned below the titanium nail 4-4;

the nail bin seat 4-3 is further provided with a reflector containing groove, an ultrasonic reflector 4-5 is contained in the reflector containing groove, and the ultrasonic reflector 4-5 is used for receiving the ultrasonic signal sent by the ultrasonic detector 10 and reflecting the received ultrasonic signal to the ultrasonic detector 10.

The utility model discloses set up ultrasonic reflector 4-5 in near titanium nail storage tank, set up ultrasonic detection instrument 10 in the terminal surface of top portion 6, under ultrasonic detection instrument 10's assistance, can accurately confirm the nail close point to can improve the operation precision of stomach fundus fold art by a wide margin.

The utility model discloses be provided with angle tracking sensor 7 on rigidity section 4, when handle 1 pivoting when rotatory, rigidity section 4 takes place the axial deflection thereupon, then angle tracking sensor 7 also takes place the deflection thereupon together, and angle tracking sensor 7 transmits the mainboard with the deflection angle signal in real time, and after this deflection angle signal was received to the mainboard, finally show in the display picture directly perceivedly. The utility model discloses a relative position of top portion 6 and esophagus can accurately be confirmed to angle tracking sensor 7 to confirm the concrete position of another stomach fundus, provide accurate, audio-visual guide for the stomach fundus folding art.

As shown in fig. 11 to 13, the top end portion 6 includes a top end seat 6-1, an end face of the top end seat 6-1 is provided with a cutting board 6-2, a micro camera 8, an LED lamp 9, an ultrasonic detector 10 and an end portion positioning pin 11, the cutting board 6-2 is fixedly arranged in the middle of the end face, the length of the cutting board 6-2 extends in the longitudinal direction, and the surface of the cutting board 6-2 protrudes out of the end face of the top end seat 6-1, so as to provide a bending force for the titanium nails 4-4; the miniature camera 8 and the LED lamp 9 are positioned on one side of the chopping board 6-2, and the ultrasonic detector 10 and the end positioning pin 11 are positioned on the other side of the chopping board 6-2; the LED lamp 9 is used for providing an illumination light source, and the micro camera 8 is used for collecting images; the ultrasonic detector 10 is used for transmitting and receiving ultrasonic signals; the ultrasonic detector 10 is matched with the ultrasonic reflector 4-5 of the rigid section 4, the ultrasonic detector 10 emits an ultrasonic signal, the ultrasonic signal is reflected back to the ultrasonic detector 10 through the ultrasonic reflector 4-5, and the ultrasonic detector 10 judges whether the top end part 6 is perfectly matched with the position of the nail bin seat 4-3 of the rigid section 4 according to the strength change condition of the received signal; when the ultrasonic signal is stable, the end positioning pin 11 extends outwards and is matched with the positioning pin hole of the rigid section 4, so that the tissue is positioned;

the middle part of the end part positioning pin 11 is provided with an external thread 11-1, and the end part positioning pin 11 is connected with the top end seat 6-1 through a thread; the free end of the end positioning pin 11 is a tip end, and the fixed end of the end positioning pin 11 is connected with a positioning pin driving motor; the end positioning pin 11 is driven to rotate by the positioning pin driving motor, so that the end positioning pin 11 can move in a telescopic manner relative to the top seat 6-1; the free end of the end positioning pin 11 is matched with the positioning pin hole 4-3-3 of the rigid section 4, so that tissue positioning can be carried out, and the deviation of the positioning position of the tissue in the operation process is avoided or reduced.

Since the side surface of the rigid segment 4 is opposed to the end surface of the distal end portion 6 in the stapled state, the view angle of the micro-camera 8 positioned at the distal end portion 6 is blocked by the fundus tissue, and therefore image information cannot be acquired, resulting in a blind area in the entire stapled state. The utility model discloses be provided with ultrasonic reflector 4-5 and ultrasonic wave detection instrument 10 respectively at the side of rigidity section 4 and the terminal surface of top portion 6, can monitor the relative position between rigidity section 4 and the top portion 6 in the process of nailing to make the operator still can observe the positional information between rigidity section 4 and the top portion 6 directly perceivedly under the state of nailing.

As shown in figure 14, the anvil 6-2 comprises an anvil body 6-2-0 having an arc-shaped surface, the arc-shaped surface of the anvil body 6-2-0 being in conformity with the side of the rigid section 4; the length direction of the anvil body 6-2-0 corresponds to the circumferential direction (namely the arc length direction) of the nail bin seat 4-3; when the top end part 6 is in a nailed state, the surface of the chopping block body 6-2-0 is matched with the side part of the rigid section 4;

two ends of the anvil plate body 6-2-0 are respectively provided with anvil plate screw penetrating holes 6-2-1, anvil plate screws 6-3 are movably arranged in the anvil plate screw penetrating holes 6-2-1, and the anvil plate screws 6-3 are connected with an anvil plate screw driving mechanism arranged in the top seat 6-1; the chopping board screw 6-3 can perform telescopic motion relative to the chopping board body 6-2-0 under the action of the chopping board screw driving mechanism;

five groups of titanium nail bending guide grooves 6-2-2, 6-2-3, 6-2-4, 6-2-5 and 6-2-6 are distributed on the surface of the anvil plate body 6-2-0 (five different patterns are used for respectively representing the groove bottoms of the five groups of titanium nail bending guide grooves in the figure); each group of titanium nail bending guide grooves comprises two parallel bending guide grooves, and each bending guide groove corresponds to one nail leg of the titanium nail 4-4; the bottom of each bending guide groove is arc-shaped with two high ends and a low middle part, and the bottom of each group of titanium nail bending guide grooves is symmetrically arranged; the bending guide groove can guide the bending direction of the nail legs of the titanium nails 4-4.

Two stop lugs are arranged on the side part of the anvil plate body 6-2-0, and the first stop lug 6-2-7 is positioned on the outer side above the LED lamp 9 and right above the water outlet hole; the second stop lug 6-2-8 is positioned at the outer side above the miniature camera 8 and is positioned right above the air outlet; the bottom surfaces of the two baffle lugs are respectively vertical to the water outlet hole and the air outlet hole; when the water outlet hole sprays water, the first baffle lug 6-2-7 reflects water flow, so that the water flow is sprayed to the miniature camera 8 and the LED lamp 9, and the lens of the miniature camera 8 and the LED lamp 9 are washed; when the air outlet is exhausted, the second baffle lug 6-2-8 reflects the air flow, so that the air flow is sprayed to the micro-camera 8 and the LED lamp 9, and the lens of the micro-camera 8 and the LED lamp 9 are blown and swept.

As shown in fig. 15-17, the anvil screw drive mechanism includes an anvil drive shaft 6-4, the anvil drive shaft 6-4 being capable of rotating under power drive; a driving gear is arranged on the chopping board driving shaft 6-4, and two sides of the driving gear are respectively meshed with a driven gear 6-5; two driven gears 6-5 are respectively fixedly connected with chopping board screws 6-3;

the bottom of the chopping board 6-2 is fixedly provided with two chopping board screw guide seats 6-6, and the chopping board screw guide seats 6-6 are connected with chopping board screws 6-3 through threads; the chopping board screw guide seats 6-6 and the driven gears 6-5 are in one-to-one correspondence and are coaxially arranged;

the bottom of the driven gear 6-5 is provided with a driven gear positioning pin 6-7; the driven gear positioning pin 6-7 is longitudinally arranged in a driven gear positioning pin hole 6-1-9 of the top seat 6-1 in a penetrating manner; the driven gear positioning pin 6-7 can limit the driven gear 6-5, so that the driven gear 6-5 is prevented from axial displacement, and the transmission precision of the chopping board screw driving mechanism is ensured;

the chopping board driving shaft 6-4 drives the two driven gears 6-5 to synchronously rotate, so as to drive the chopping board screw 6-3 to do telescopic motion relative to the chopping board 6-2; the anvil screw guide seat 6-6 can guide the anvil screw 6-3, thereby precisely controlling the stroke of the anvil screw 6-3.

As shown in fig. 18 to 20, the top seat 6-1 comprises a top seat body 6-1-1, a longitudinally extending cutting board positioning groove 6-1-2 is formed in the middle of the end surface of the top seat body 6-1-1, the cutting board positioning groove 6-1-2 is matched with the bottom of the cutting board 6-2, and the cutting board 6-2 is fixedly arranged in the cutting board positioning groove 6-1-2; the two ends of the chopping block positioning groove 6-1-2 are respectively provided with a limiting boss 6-1-10, the width of the limiting boss 6-1-10 is matched with the width of the chopping block 6-2, so that the chopping block 6-2 is limited in the width direction (namely in the transverse direction);

a cutting board driving shaft through hole 6-1-3 and two driven gear shaft through holes 6-1-4 are formed in the cutting board positioning groove 6-1-2; the cutting board driving shaft through hole 6-1-3 and the driven gear shaft through hole 6-1-4 extend along the axial direction;

one side of the top end seat body 6-1-1 is provided with a micro camera positioning hole 6-1-6 and an LED lamp positioning hole 6-1-5, a micro camera 8 is fixedly arranged in the micro camera positioning hole 6-1-6, the end part of the LED lamp positioning hole 6-1-5 is fixedly provided with an LED lamp shade 9-1, and an LED lamp 9 is fixedly arranged in the LED lamp positioning hole 6-1-5;

an end positioning pin accommodating hole 6-1-8 and an ultrasonic detector mounting hole 6-1-7 are formed in the other side of the top end seat body 6-1-1, and an ultrasonic detector 10 is fixedly arranged in the ultrasonic detector mounting hole 6-1-7; the lower part of the end positioning pin accommodating hole 6-1-8 forms an internal threaded hole 6-1-8 ', and the lower internal threaded hole 6-1-8' of the end positioning pin accommodating hole 6-1-8 is connected with the end positioning pin 11 through threads;

the end surface of the top seat 6-1 forms an arc 6-20 which is inosculated with the side part of the rigid section 4 along the longitudinal direction; the end face of the top seat 6-1 is transversely provided with a conical surface with a small upper part and a large lower part, so that a first inclined surface 6-31 and a second inclined surface 6-32 are formed on two sides of the end face, the positioning hole 6-1-6 of the miniature camera and the positioning hole 6-1-5 of the LED lamp are positioned on the first inclined surface 6-31, and the positioning pin accommodating hole 6-1-8 of the end part and the mounting hole 6-1-7 of the ultrasonic detector are positioned on the second inclined surface 6-32;

the connecting part of the top seat 6-1 and the two ends of the chopping block 6-2 is transversely provided with a chopping block positioning pin hole 6-11, and a chopping block positioning pin 6-8 is arranged in the chopping block positioning pin hole 6-11 in a penetrating way; the length-wise (i.e. longitudinal) positioning between the anvil 6-2 and the top seat 6-1 can be achieved by means of two anvil positioning pins 6-8.

The utility model discloses the miniature camera machine 8, LED lamp 9, tip locating pin 11 and the ultrasonic wave detection instrument 10 that will be located top portion terminal surface all set up on the inclined plane of chopping block 6-2 both sides to avoid receiving the interference of the action of stitching, no matter whether equipment is in the stitching state, respective operating condition can be guaranteed to miniature camera machine 8, LED lamp 9, tip locating pin 11 and ultrasonic wave detection instrument 10.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications of the present invention fall within the scope of the claims and their equivalent technologies, the present invention is also intended to include such modifications and variations.

Claims (8)

1. A chopping block screw driving mechanism of an endoscope stapling device for performing fundoplication, comprising:

an anvil drive shaft (6-4) which is capable of rotating under power drive; a driving gear is arranged on the cutting board driving shaft (6-4);

a driven gear (6-5) engaging the drive gear;

the chopping board screw (6-3) is fixedly connected with the driven gear (6-5); the chopping board screw (6-3) is movably arranged in the chopping board screw through hole (6-2-1) of the chopping board (6-2); and

the cutting board screw guiding seat (6-6) is fixedly arranged at the bottom of the cutting board (6-2); the chopping board screw guide seat (6-6) is connected with the chopping board screw (6-3) through threads.

2. The anvil screw driving mechanism of an endoscopic stapling device for performing fundoplication according to claim 1, wherein said driven gears (6-5) are two and engaged with both sides of said driving gear, respectively.

3. The anvil screw driving mechanism of an endoscopic stapling device for performing fundoplication as claimed in claim 2, wherein said anvil screw guide seats (6-6) are provided in one-to-one correspondence and coaxially with the driven gears (6-5).

4. The anvil screw driving mechanism of an endoscopic stapling device for performing fundoplication according to claim 1, further comprising a driven gear positioning pin (6-7) fixedly disposed at the bottom of said driven gear (6-5).

5. The anvil screw driving mechanism of an endoscopic stapling device for performing fundoplication as claimed in claim 4, wherein said driven gear positioning pin (6-7) is fixedly inserted into a driven gear positioning pin hole (6-1-9) of the tip seat (6-1).

6. The anvil screw driving mechanism of an endoscopic stapling device for performing fundoplications according to claim 1, wherein the free end of the anvil screw (6-3) is pointed.

7. The anvil screw driving mechanism of an endoscopic stapling device for performing fundoplication according to claim 1, wherein said anvil screw (6-3) is fitted with an anvil screw fitting hole (4-3-4) provided to the rigid section (4).

8. The anvil screw driving mechanism of an endoscopic stapling device for performing fundoplication according to claim 7, wherein the hole depth of said anvil screw fitting hole (4-3-4) is smaller than the length of the anvil screw (6-3) protruding out of said anvil (6-2).

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