NL2036787B1

NL2036787B1 - Automatic vaginal cutting and suturing device

Info

Publication number: NL2036787B1
Application number: NL2036787A
Authority: NL
Inventors: Song Guanchen; Ma Tingting; Wu Jiapeng; Liu Xintong; Meng Qianchao; Wang Mei; Wang Yuhua; Xiang Honggang
Original assignee: Shanghai Pudong New Area People’S Hospital
Priority date: 2023-01-12
Filing date: 2024-01-11
Publication date: 2024-09-09
Also published as: CN116098686A; NL2036787A

Abstract

The invention discloses an automatic vaginal cutting and suturing device, which includes a device body, said device body includes a clamping assembly, a cutting assembly, and a suturing assembly, said clamping assembly includes a first driving part and a first clamping part, said cutting assembly includes a second driving part and a cutting blade, said second driving part drives the cutting blade to perform a reciprocating motion; said suturing assembly includes a third driving part and a suture part, said suture part is equipped. with. a suture thread, the first driving part drives the first clamping part to open or close to clamp or release the tissue that needs to be blocked; the second driving part drives the cutting blade to perform a reciprocating motion, achieving automatic cutting; the third driving part drives the suturing part to move directly along the tissue that needs to be sutured, achieving an automatic suturing process, overcoming the traditional surgical method that relies on manual operation, saving a lot of time. Fig. l

Description

P142828NL0OO

AUTOMATIC VAGINAL CUTTING AND SUTURING DEVICE

TECHNICAL FIELD

The present invention relates to the field of medical device technology, specifically to an automatic vaginal cutting and suturing device.

BACKGROUND ART

Cervical cancer ranks second among malignant tumors of the female reproductive system, with approximately 250,000 women dying from cervical cancer worldwide each year, severely affecting women's health and life. Extensive hysterectomy and pelvic-abdominal lymph node dissection are standard radical procedures for cervical cancer, which require the assistance of laparoscopy and abdominal surgery. The principle of the surgery is to make an incision in the patient's abdomen with a laparoscopic trocar, insert instruments with a slender rod part through the hole of the trocar, and manipulate the instruments outside the body under the observation of the laparoscope to complete the cutting and suturing of the pathological tissue. In existing technology, manual cutting and suturing consume a lot of time, and the tumor is prone to spread during surgery, causing contamination, which is not conducive to subsequent recovery.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic vaginal cutting and suturing device that can perform automatic cutting and suturing of surgery, improve surgical efficiency, reduce tumor spread in the abdominal cavity by performing closed suturing at the lower end of the cut before completing the cutting, thereby reducing contamination, and is conducive to subsequent recovery.

To achieve the above objectives, the present invention provides the following technical solutions: an automatic vaginal cutting and suturing device, including a device body, the device body comprising a clamping assembly, a cutting assembly, and a suturing assembly. The clamping assembly includes a first driving part and a first clamping part, where the first driving part drives the first clamping part to open or close; the cutting assembly includes a second driving part and a cutting blade, where the second driving part drives the cutting blade to perform a reciprocating motion; the suturing assembly includes a third driving part and a suture part, where the suture part is equipped with a suture thread, and the third driving part drives the suture thread to perform suturing motion.

Through the above technical solutions, the first driving part drives the opening or closing of the first clamping part to clamp or release the tissue that needs to be blocked; the second driving part drives the cutting blade to perform a reciprocating motion, achieving automatic cutting; the third driving part drives the suturing part to move directly along the tissue that needs to be sutured, achieving an automatic suturing process, overcoming the reliance on manual operations in traditional surgical methods, and saving a lot of time. The first clamping part automatically blocks the vaginal wall tissue that needs to be removed, cuts between the abdominal cavity and the vagina, blocks the uterine specimen, ensures the principle of tumor-free surgery, prevents spread within the abdominal cavity, and minimizes contamination and the possibility of cancer cell metastasis.

Preferably, the first clamping component also includes a first sleeve set and a first inner push rod, where the first inner push rod passes through the first sleeve set and is slidably connected to the first sleeve set; the first driving part is set as a first stepping motor, the first clamping part is set as a pair of clamping heads, one end of the pair of clamping heads is hingedly connected to the inside of the first sleeve set, and the other end of the pair of clamping heads is exposed on the outside of the first sleeve set;

A reset spring is set between the pair of clamping heads, one end of the first inner push rod is fixed to the output end of the first stepping motor, and the other end is fixed with a push plate that matches the inner diameter of the first sleeve set. The push plate is provided with a pair of extrusion parts on the side close to the clamping heads, and the push plate drives the pair of extrusion parts to move back and forth in the axial direction of the first sleeve set, thereby squeezing or releasing the pair of clamping heads.

Through the above technical solutions, when it is necessary to clamp the tissue, the first stepping motor drives the first inner push rod to move in the direction close to the clamping heads, and at the same time, the push plate drives the pair of extrusion parts to move in the direction close to the clamping heads, the reset spring is compressed, one end of the pair of clamping heads rotates around the hinge point on the inside of the first sleeve set, and the other end gradually closes to clamp the tissue.

Preferably, the cutting assembly also includes a second sleeve set and a second inner push rod, where the second inner push rod passes through the second sleeve set and is slidably connected to the second sleeve set; the second driving part is set as a second stepping motor, one end of the second inner push rod is fixed to the output end of the second stepping motor, and the other end is fixedly connected to the cutting blade, and the cutting blade extends to the outside of the second sleeve set, the second stepping motor drives the cutting blade to move back and forth in the axial direction of the second sleeve set.

Preferably, the cutting assembly also includes a second clamping part, the second clamping part includes a fixed arm and a movable arm, the fixed arm is fixedly connected to the end of the second sleeve set close to the cutting blade, the movable arm is hingedly connected to the end of the second sleeve set close to the cutting blade, and also includes a driving component, the driving component drives the movable arm to open or close around the hinge point.

Preferably, when the fixed arm and the movable arm are closed, an active range is set between the fixed arm and the movable arm, and the cutting blade moves back and forth in the active range.

Through the above technical solutions, the driving component can be set as a driving cylinder, driven by the driving cylinder, the movable arm opens around the hinge point, the driving cylinder then drives the movable arm to close around the hinge point to clamp the tissue that needs to be cut, at this time the cutting position is located in the active range between the fixed arm and the movable arm; at this time, the second stepping motor drives the second inner push rod to move linearly in the direction close to the cutting blade, making the cutting blade reciprocate cutting the tissue located in the active range.

Preferably, the suture part includes an annular sleeve, both ends of the annular sleeve are interconnected, the annular sleeve is provided with a fan-shaped notch, the fan-shaped notch is used to accommodate the suture area; the annular sleeve is provided with an annular needle, the annular needle has needle holes for the suture thread to pass through, the annular needle matches the inner diameter of the annular sleeve; also includes a driving component, the driving component drives the annular needle to rotate around the center of the annular sleeve.

Preferably, the driving component includes a micro motor set at the center of the annular sleeve, and also includes a connecting rod that matches the inner diameter of the annular sleeve, one end of the connecting 5 rod is fixedly connected to the annular needle, and the other end is fixedly connected to the output end of the micro motor, the micro motor drives the connecting rod to perform circular motion.

Preferably, the arc length of the annular needle is greater than the arc length of the fan-shaped notch.

Preferably, the third driving part is set as a third stepping motor, the suturing assembly also includes a third sleeve set and a third inner push rod, the third inner push rod passes through the third sleeve set and is slidably connected to the third sleeve set, one end of the third inner push rod is fixedly connected to the third stepping motor, and the other end is fixedly connected to the suture part, causing the suture part to move back and forth in the axial direction of the third inner push rod.

Through the above technical solutions, while the micro motor drives the connecting rod to perform circular motion, the connecting rod drives the annular needle to perform circular motion within the annular sleeve: the tip of the needle enters the tissue to be sutured from one end of the annular sleeve, then exits from the tissue to be sutured into the other end of the annular sleeve, and since the arc length of the annular needle is greater than the arc length of the fan-shaped notch, the annular needle will not exit from the fan-shaped notch. At the same time, the third stepping motor drives the third inner push rod to move, thereby driving the annular needle within the annular sleeve to perform linear motion, allowing the annular needle to carry the suture thread to automatically suture the tissue to be sutured.

Preferably, the pair of clamping heads are provided with matching serrations on the inside to increase the frictional resistance with the tissue.

Beneficial Effects:

The automatic cutting and suturing device of the present invention, by setting a clamping assembly, a cutting assembly, and a suturing assembly, realizes the automation of clamping, cutting, and suturing processes during surgery, overcoming the reliance on manual operations in traditional surgical methods, and saving a lot of time; the first clamping part automatically blocks the vaginal wall tissue that needs to be removed, cuts between the abdominal cavity and the vagina, blocks the uterine specimen, ensures the principle of tumor-free surgery, prevents spread within the abdominal cavity, and minimizes contamination and the possibility of cancer cell metastasis.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the overall control panel of an automatic vaginal cutting and suturing device of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the clamping assembly of the automatic vaginal cutting and suturing device of the present invention;

FIG. 3 1s a schematic diagram of the overall structure of the cutting assembly of the automatic vaginal cutting and suturing device of the present invention;

FIG. 4 is a schematic diagram of the overall structure of the suturing assembly of the automatic vaginal cutting and suturing device of the present invention;

FIG. 5 is a diagram showing the positional relationship between the extrusion part and the clamping head of the automatic vaginal cutting and suturing device of the present invention;

FIG. 6 is a diagram showing the positional relationship between the second clamping part and the cutting blade of the automatic vaginal cutting and suturing device of the present invention;

FIG. 7 is a diagram showing the positional

: relationship between the rotating shaft and the cutting motor of the automatic vaginal cutting and suturing device of the present invention;

FIG. 8 is a diagram showing the positional relationship between the annular sleeve and the annular needle of the automatic vaginal cutting and suturing device of the present invention;

FIG. 9 is a working state diagram of the annular needle of the automatic vaginal cutting and suturing device of the present invention.

List of reference numerals: 1, Clamping assembly; 2, Cutting assembly; 21, Cutting blade; 22, Rotating shaft; 23, Cutting motor; 3, Suturing assembly; 4, First sleeve set; 41, First inner push rod; 42, First stepping motor; 43, Clamping head; 44, Reset spring; 45, Push plate; 46,

Extrusion part; 5, Second sleeve set; 52, Second inner push rod; 53, Second stepping motor; 6, Second clamping part; 61, Fixed arm; 62, Movable arm; 63, Driving component; 64,

Active range; 7, Third stepping motor; 71, Third inner push rod; 8, Suture part; 81, Annular sleeve; 82, Micro motor; 83, Connecting rod; 9, Annular needle; 91, Suture thread.

DETAILED DESCRIPTION OF EMBODIMENTS

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

The embodiments of the present invention are described in detail as follows:

As shown in FIGS. 1, 2, 3, and 4, an automatic vaginal cutting and suturing device includes a device body,

the device body comprising a clamping assembly 1, a cutting assembly 2, and a suturing assembly 3. The clamping assembly 1 includes a first driving part and a first clamping part, where the first driving part drives the first clamping part to open or close; the cutting assembly 2 includes a second driving part and a cutting blade 21, where the second driving part drives the cutting blade 21 to perform a reciprocating motion; the suturing assembly 3 includes a third driving part and a suture part 8, where the suture part 8 is equipped with a suture thread 91, and the third driving part drives the suture thread 91 to perform suturing motion.

The first driving part drives the opening or closing of the first clamping part to clamp or release the tissue that needs to be blocked; the second driving part drives the cutting blade 21 to perform a reciprocating motion, achieving automatic cutting; the third driving part drives the suturing part 8 to move directly along the tissue that needs to be sutured, achieving an automatic suturing process, overcoming the reliance on manual operations in traditional surgical methods, and saving a lot of time. The first clamping part automatically blocks the vaginal wall tissue that needs to be removed, cuts between the abdominal cavity and the vagina, blocks the uterine specimen, ensures the principle of tumor-free surgery, prevents spread within the abdominal cavity; the lower part closes the vaginal wall tissue, ensuring that the abdominal cavity and vagina are separated, minimizing the possibility of contamination.

Specifically, as shown in FIG. 5, the first clamping component also includes a first sleeve set 4 and a first inner push rod 41, where the first inner push rod 41 passes through the first sleeve set 4 and is slidably connected to the first sleeve set 4; the first driving part is set as a first stepping motor 42, the first clamping part is set as a pair of clamping heads 43, one end of the pair of clamping heads 43 is hingedly connected to the inside of the first sleeve set 4, and the other end of the pair of clamping heads 43 is exposed on the outside of the first sleeve set 4; a reset spring 44 is set between the pair of clamping heads 43, one end of the first inner push rod 41 is fixed to the output end of the first stepping motor 42, and the other end is fixed with a push plate 45 that matches the inner diameter of the first sleeve set 4, the push plate 45 is provided with a pair of extrusion parts 46 on the side close to the clamping heads 43, and the push plate 45 drives the pair of extrusion parts 46 to move back and forth in the axial direction of the first sleeve set 4, thereby squeezing or releasing the pair of clamping heads 43.

When it is necessary to clamp the tissue, the first stepping motor 42 drives the first inner push rod 41 to move in the direction close to the clamping heads 43, and at the same time, the push plate 45 drives the pair of extrusion parts 46 to move in the direction close to the clamping heads 43, preferably, the pair of extrusion parts 46 are set as a pair of sliders, the pair of sliders respectively squeeze the upper and lower sides of the pair of clamping heads 43, at this time the reset spring 44 is compressed, one end of the pair of clamping heads 43 rotates around the hinge point on the inside of the first sleeve set 4, and the other end gradually closes to clamp the tissue. As a preferred embodiment, the pair of clamping heads 43 are provided with matching serrations on the inside, which can increase the frictional resistance between the pair of clamping heads 43 and the tissue, preventing the tissue from falling off. When releasing the tissue, the first stepping motor 42 drives the first inner push rod 41 to move in the direction away from the clamping heads 43, the push plate 45 drives the pair of sliders to move in the direction away from the clamping heads 43, the squeezing force on the pair of clamping heads 43 gradually decreases, at this time the reset spring 44 gradually returns to its original position, applying a reverse force to the pair of clamping heads 43, causing them to open around the hinge point. This can achieve automatic clamping and release of the tissue, overcoming the traditional reliance on external force to prevent tissue from falling off during clamping, facilitating the operation of medical personnel, and improving surgical safety.

Specifically, as shown in FIG. 6, the cutting assembly 2 also includes a second sleeve set 5 and a second inner push rod 52, where the second inner push rod 52 passes through the second sleeve set 5 and is slidably connected to the second sleeve set 5; the second driving part is set as a second stepping motor 53, one end of the second inner push rod 52 is fixed to the output end of the second stepping motor 53, and the other end is fixedly connected to the cutting blade 21, and the cutting blade 21 extends to the outside of the second sleeve set 5, the second stepping motor 53 drives the cutting blade 21 to move back and forth in the axial direction of the second sleeve set 5. As a preferred embodiment, the cutting assembly 2 also includes a second clamping part 6, the second clamping part 6 includes a fixed arm 61 and a movable arm 62, the fixed arm 61 is fixedly connected to the end of the second sleeve set 5 close to the cutting blade 21, the movable arm 62 is hingedly connected to the end of the second sleeve set 5 close to the cutting blade 21, and also includes a driving component 63, the driving component 63 drives the movable arm 62 to open or close around the hinge point. When the fixed arm 61 and the movable arm 62 are closed, an active range 64 is set between the fixed arm 61 and the movable arm 62, and the cutting blade 21 moves back and forth in the active range 64.

The second clamping part 6 is placed at the tissue that needs to be cut, the driving component 63 can be set as a driving cylinder, driven by the driving cylinder, the movable arm 62 opens around the hinge point, the driving component 63 then drives the movable arm 62 to close around the hinge point to clamp the tissue that needs to be cut, at this time the cutting position is located in the active range 64 between the fixed arm 61 and the movable arm 62; at this time, the second stepping motor 53 drives the second inner push rod 52 to move linearly in the direction close to the cutting blade 21, making the cutting blade 21 reciprocate cutting the tissue located in the active range 64.

As a preferred embodiment, as shown in FIG. +, the cutting blade 21 is set as circular, the circumference of the cutting blade 21 is set with serrations, the center of the cutting blade 21 is perpendicularly fixed with a rotating shaft 22, the cutting assembly 2 also includes a cutting motor 23, the cutting motor 23 is fixed on the second inner push rod 52, and the output end of the cutting motor 23 is fixedly connected to the rotating shaft 22, making the cutting blade 21 move linearly while rotating around the rotating shaft 22, improving the cutting effect.

Specifically, as shown in FIGS. 8 and 9, the suturing part 8 includes an annular sleeve 81, both ends of the annular sleeve 81 are interconnected, the annular sleeve 81 is provided with a fan-shaped notch, the fan- shaped notch is used to accommodate the suture area; the annular sleeve 81 is provided with an annular needle 9, the annular needle 9 has needle holes for the suture thread 91 to pass through, the annular needle 9 matches the inner diameter of the annular sleeve 81, the arc length of the annular needle 9 is greater than the arc length of the fan- shaped notch; also includes a driving component, the driving component drives the annular needle 9 to rotate around the center of the annular sleeve 81.

As a preferred embodiment, the driving component includes a micro motor 82 set at the center of the annular sleeve 81, and also includes a connecting rod 83 that matches the inner diameter of the annular sleeve 81, one end of the connecting rod 83 is fixedly connected to the annular needle 9, and the other end is fixedly connected to the output end of the micro motor 82, the micro motor 82 drives the connecting rod 83 to perform circular motion.

As a preferred embodiment, the third driving part is set as a third stepping motor 7, the suturing assembly 3 also includes a third sleeve set and a third inner push rod 71, the third inner push rod 71 passes through the third sleeve set and is slidably connected to the third sleeve set, one end of the third inner push rod 71 is fixedly connected to the third stepping motor 7, and the other end is fixedly connected to the suturing part 8, causing the suturing part 8 to move back and forth in the axial direction of the third inner push rod 71.

The tissue to be sutured is placed at the fan- shaped notch, the suture thread 91 is fixed through the needle holes of the annular needle 9, while the micro motor 82 drives the connecting rod 83 to perform circular motion, the connecting rod 83 drives the annular needle 9 to perform circular motion within the annular sleeve 81: the tip of the needle enters the tissue to be sutured from one end of the annular sleeve 81, then exits from the tissue to be sutured into the other end of the annular sleeve 81, and since the arc length of the annular needle 9 1s greater than the arc length of the fan-shaped notch, the annular needle 93 will not exit from the fan-shaped notch. At the same time, the third stepping motor 7 drives the third inner push rod 71 to move, thereby driving the annular needle 9 within the annular sleeve 81 to perform linear motion, allowing the annular needle 9 to carry the suture thread 91 to automatically suture the tissue to be sutured, facilitating operation, and easy to learn.

As a preferred embodiment, the device includes a microcontroller, and the clamping assembly 1, the cutting assembly 2, and the suturing assembly 3 are all electrically connected to the microcontroller. A pressure sensor is also set on the inside of the pair of clamping heads 43, the pressure sensor is used to obtain the clamping pressure signal, when the clamping pressure reaches the set value, the clamping assembly 1 stops moving, ensuring that the clamping of the tissue is always in a stable state, further preventing loosening during the cutting and suturing process. As a preferred embodiment, the suture thread 91 is a resorbable barbed surgical suture thread 91, retaining part of the vaginal canal end for closed suturing, preserving vaginal function. The device is powered by a lithium battery.

Working Principle:

The present invention provides an automatic vaginal cutting and suturing device, which realizes the automation of clamping, cutting, and suturing processes during surgery, overcoming the reliance on manual operations in traditional surgical methods, and saving a lot of time, the first clamping part automatically blocks the vaginal wall tissue that needs to be removed, cuts between the abdominal cavity and the vagina, blocks the uterine specimen, ensures the principle of tumor-free surgery, prevents spread within the abdominal cavity, and minimizes contamination and the possibility of cancer cell metastasis.

When clamping the tissue, the first stepping motor 42 drives the first inner push rod 41 to move in the direction close to the clamping heads 43, and at the same time, the push plate 45 drives the pair of extrusion parts 46 to move in the direction close to the clamping heads 43, at this time the reset spring 44 is compressed, one end of the pair of clamping heads 43 rotates around the hinge point on the inside of the first sleeve set 4, and the other end gradually closes to clamp the tissue. The matching serrations inside the clamping heads 43 can increase the frictional resistance between the pair of clamping heads 43 and the tissue, the pressure sensor obtains the clamping pressure signal, effectively preventing the tissue from falling off.

When cutting, the second clamping part 6 is placed at the tissue that needs to be cut, the driving component 63 drives the movable arm 62 to close around the hinge point to clamp the tissue that needs to be cut, at this time the cutting position is located in the active range 64 between the fixed arm 61 and the movable arm 62; the second stepping motor 53 drives the second inner push rod 52 to move linearly in the direction close to the cutting blade 21, making the cutting blade 21 reciprocate cutting the tissue located in the active range 64.

When suturing, the tissue to be sutured is placed at the fan-shaped notch, the suture thread 91 is fixed through the needle holes of the annular needle 9, while the micro motor 82 drives the connecting rod 83 to perform circular motion, the connecting rod 83 drives the annular needle 9 to perform circular motion within the annular sleeve 81: the tip of the needle enters the tissue to be sutured from one end of the annular sleeve 81, then exits from the tissue to be sutured into the other end of the annular sleeve 81, and since the arc length of the annular needle 9 is greater than the arc length of the fan-shaped notch, the annular needle © will not exit from the fan- shaped notch. At the same time, the third stepping motor 7 drives the third inner push rod 71 to move, thereby driving the annular needle 9 within the annular sleeve 81 to perform linear motion, allowing the annular needle 9 to carry the suture thread 91 to automatically suture the tissue to be sutured.

For those skilled in the art, it is obviously not limited to the details of the exemplary embodiments described above, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

Therefore, in any respect, the embodiments should be considered as illustrative and not restrictive, the scope of the invention is defined by the appended claims rather than the foregoing description, and therefore all changes that fall within the meaning and range of equivalency of the claims are intended to be embraced within the invention.

Any reference numerals in the claims should not be construed as limiting the involved claims.

Claims

CONCLUSIONS

1. An automatic sheath-type cutting and stitching apparatus, characterized in that: it comprises a device body, the device body comprising a clamping assembly (1), a cutting assembly (2), and a stitching assembly (3), the clamping assembly (1) comprising a first driving portion and a first clamping portion, the first driving portion driving the first clamping portion to open or close; the cutting assembly (2) comprising a second driving portion and a cutting blade (21), the second driving portion driving the cutting blade (21) to perform a reciprocating movement; the stitching assembly (3) comprising a third driving portion and a stitching portion (8), the stitching portion (8) being provided with a stitching thread (91), the third driving portion driving the stitching thread to perform a stitching movement.

2. The automatic sheath-like cutting and stitching device according to claim 1, characterized in that : the first clamping portion further comprises a first sleeve set (4) and a first inner push rod (41), the first inner push rod (41) passing through the first sleeve set (4) and being slidably connected to the first sleeve set (4); the first driving portion is configured as a first stepper motor (42), the first clamping portion is configured as a set of clamping heads (43), one end of the set of clamping heads (43) being pivotally connected to the inside of the first sleeve set (4), and the other end of the set of clamping heads (43) being exposed to the outside of the first sleeve set (4); a return spring (44) is disposed between the pair of clamping heads (43), one end of the first inner push rod (41) being attached to the output end of the first stepper motor (42), and the other end being attached to a push plate (45) mating with the inner diameter of the first sleeve set (4), the push plate (45) having a pair of projections (46) on the side close to the clamping heads (43), and the push plate (45) driving the pair of projections (46) to reciprocate in the axial direction of the first sleeve set (4) for squeezing or releasing the pair of clamping heads (43).

3. The automatic sheath-like cutting and stitching device according to claim 1, characterized in that : the cutting assembly (2) further comprises a second sleeve set (5) and a second inner push rod (52), the second inner push rod (52) passing through the second sleeve set (5) and slidably connected to the second sleeve set (5); the second driving portion is configured as a second stepper motor (53), one end of the second inner push rod (52) being fixed to the output end of the second stepper motor (53), and the other end being fixedly connected to the cutting blade (21), and the cutting blade (21) extends outside the second sleeve set (5), the second stepper motor (53) driving the cutting blade (5) to reciprocate along an axial direction of the second sleeve set (5).

4. The automatic sheath-like cutting and stitching device according to claim 3, characterized in that : the cutting assembly (2) further comprises a second clamping portion (6), the second clamping portion (6) including a fixed arm (61) and a movable arm (62), the fixed arm (61) being fixedly connected to one end of the second sleeve set (5) adjacent to the cutting blade (21), the movable arm (62) being pivotally connected to one end of the second sleeve set (5) adjacent to the cutting blade (21), and also comprising a driving component (63), the driving component (63) driving the movable arm (62) to open or close with the hinge as the fulcrum.

5. The automatic sheath-like cutting and stitching device according to claim 4, characterized in that:

when the fixed arm {61) and the movable arm (62) are closed, an active range (64) is set between the fixed arm (61) and the movable arm (62), and the cutting blade (21) moves back and forth in the active range (64}.

6. The automatic sheath-like cutting and suturing device according to claim 1, characterized in that : the suturing portion (8) comprises an annular sleeve (81), both ends of the annular sleeve (81) being interconnected, the annular sleeve (81) being provided with a sector-shaped recess, the sector-shaped recess being used to accommodate the suturing area; an annular needle (92) is disposed inside the annular sleeve (81), the annular needle (9) being provided with needle holes for passing the suture thread (91) therethrough, the annular needle (9) corresponding to the inner diameter of the annular sleeve (81); it also comprises a driving component, the driving component driving the annular needle (9) to rotate around the center of the annular sleeve (81).

7. The automatic sheath-like cutting and stitching device according to claim 6, characterized in that: the drive component comprises a micro-motor (82) located in the center of the annular sleeve (81), and further comprises a connecting rod (83) matching the inner diameter of the annular sleeve (81), one end of the connecting rod (83) being fixedly connected to the annular needle (9), and the other end being fixedly connected to the output end of the micro-motor (82), the micro-motor (82) driving the connecting rod (83) to perform a circular motion.

8. The automatic sheath-like cutting and stitching device according to claim 6, characterized in that: the arc length of the annular needle (9) is greater than the arc length of the sector-shaped recess.

9. The automatic sheath-like cutting and stitching device according to any one of claims 6 to 8, characterized in that : the third driving portion is configured as a third stepper motor (7), the stitching assembly (3) further comprising a third sleeve set and a third inner push rod (71), the third inner push rod (71) passing through the third sleeve set and slidably connected to the third sleeve set, one end of the third inner push rod (71) being fixedly connected to the third stepper motor (7), and the other end being fixedly connected to the stitching portion (8), for causing the stitching portion (8) to move back and forth in the axial direction of the third inner push rod (71).

10. The automatic sheath-like cutting and stitching device according to claim 2, characterized in that : a pair of said clamping heads (43) are internally provided with mating serrations. -070-0-70-0-0-0-0-