CN114403975A

CN114403975A - Multifunctional mechanical linkage type abdominal cavity tissue section ligator

Info

Publication number: CN114403975A
Application number: CN202210135236.0A
Authority: CN
Inventors: 张琳; 吴波; 王东文
Original assignee: First Hospital of Shanxi Medical University
Current assignee: First Hospital of Shanxi Medical University
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-04-29

Abstract

The invention discloses a multifunctional mechanical linkage type abdominal cavity tissue section ligator, which comprises a shell, wherein a rotating assembly capable of performing primary puncture on tissues is arranged on the left side in the shell, a driving assembly capable of controlling the rotating assembly is fixedly arranged on the right side of the outer wall of the shell, a guide assembly is rotatably arranged on the right side of the rotating assembly, and a moving assembly capable of performing secondary puncture on the tissues is slidably arranged at the upper end in the shell. The device solves the problems that manual knotting is easy to cause slipping knots in narrow body cavities, thread knots are scattered, ineffective knotting is caused, secondary damage is caused to tissue segments, and even secondary operation is required. Through one-way knot barb stylolite ligature device, convenient and fast effectively ligature, the ligature success rate is high.

Description

Multifunctional mechanical linkage type abdominal cavity tissue section ligator

Technical Field

The invention relates to the technical field of medical appliances, in particular to a multifunctional mechanical linkage type abdominal cavity tissue section ligator.

Background

The existing laparoscopic minimally invasive surgery is more and more widely applied, the laparoscopic surgery is aimed at the ligation of a pipeline anatomical structure, some small bile ducts and small blood vessels can be used for electric coagulation hemostasis, some large ducts, such as bile ducts and blood vessels, are often clamped by a homelock, the clamp is left in the body at one time, when a patient is abdominally opened for surgery, some large ducts cannot be ligated by electric coagulation, but are ligated by traditional manual ligation, and the ligation ducts are often knotted by traditional hand-held needle holders and threads in a narrow surgical field.

When some tissues in the abdominal cavity or the thoracic cavity are ligated, the broken end of the pipeline on the tissue section is sutured by a hand-held needle holder, forceps and a needle thread (for example, when the abdominal cavity is opened to perform cholecystectomy, the thick hepatic duct, bile duct and blood vessel on the surface of the liver cannot be electrically coagulated to stop bleeding and need to be ligated to stop bleeding), but the surgical cavity exposed by the open abdominal operation is very narrow, especially for children or obese patients, the hands of the operator need to be inserted with needles and tied to be ligated in the narrow cavity, the hand can not be turned, the difficulty is very high, the operation often fails, repeated operation is needed for many times, the operation time and the anesthesia time are prolonged, the operation difficulty is increased, and the operation can not be smoothly performed. Even if the needle insertion is successful, when knotting, the suture is often pulled out due to the hand pulling or the first knot cannot be well fixed due to the deeper ligation part, so that the knot is loosened. In view of the above disadvantages, it is necessary to design a multifunctional mechanical linkage type ligator for abdominal tissue section.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a multifunctional mechanical linkage type abdominal tissue section ligator, which solves the problems provided by the background technology.

In order to solve the technical problems, the technical scheme of the invention is as follows: multifunctional mechanical coordinated type abdominal cavity tissue section ligator, which comprises a housin, the inside left side of casing be equipped with the rotating assembly that can carry out the first puncture to the tissue, shell outer wall right side set firmly the drive assembly that can carry out control to the rotating assembly, the rotating assembly right side rotate and be equipped with the direction subassembly, the inside upper end of casing slip be equipped with the removal subassembly that can carry out the secondary puncture to the tissue, the inside top left side activity of casing be equipped with one-way buckle, the inside one-way suture that is equipped with of rotating assembly, one-way suture form by one-way barb suture and ordinary suture combination, the casing lower extreme be equipped with the U-shaped push rod.

Furthermore, the rotating assembly comprises a linkage pin, a driven wheel, a driving gear, a connecting plate, a displacement strip, a curved needle, a linkage gear and a rack, the linkage pin is arranged on the left side inside the shell, and the driven wheel is fixedly sleeved at the front end outside the linkage pin.

Further, outside rear end sliding sleeve of linkage round pin be equipped with drive gear, the linkage round pin establish regional cross section by drive gear cover be the square, other regional cross sections of linkage round pin be circular, drive gear around both ends be equipped with the connecting plate, the connecting plate rotate the cover and locate the linkage round pin, the inside left side of connecting plate slide and be equipped with the displacement strip.

Further, the meshing of drive gear left side teeth of a cogwheel be equipped with the looper, the inside an organic whole of looper be equipped with the standing groove, looper one end around both sides rotate with the displacement strip and be connected, the outside fixed cover in both ends around of linkage round pin be equipped with the linkage gear, the inside left side of casing around both ends set firmly the rack, rack and linkage gear mesh mutually.

Further, drive assembly constitute by dead lever, bull stick, the elastic sheet that resets, action wheel and belt, outer wall of the housing right side the dead lever has set firmly, the inside right side of casing rotate and be equipped with the bull stick, bull stick and dead lever between the fixed elastic sheet that resets, the inside upper end of bull stick rotate and be equipped with the action wheel, the outside tight fit cover of action wheel be equipped with the belt, the belt other end tight fit cover locate from the driving wheel.

Further, the direction subassembly constitute by U-shaped frame, trace and guide way, the inside left side of casing be equipped with the U-shaped frame, U-shaped frame both ends rotate with the connecting plate at both ends around respectively and link to each other, U-shaped frame bottom the trace has set firmly, the inside left side bottom of casing an organic whole be equipped with the guide way, guide way and trace sliding connection.

Further, the removal subassembly by actuating lever, first spring, stopper, second spring, spacing hole, elastic plate, straight needle and draw-in groove constitute, the inside upper end of casing slide and be equipped with the actuating lever.

Further, the outside right side cover of actuating lever be equipped with first spring, first spring one end and actuating lever fixed connection, the first spring other end and casing fixed connection, the inside right side of actuating lever slide and be equipped with the stopper.

Furthermore, the left side and the right side of the bottom of the limiting block are fixedly provided with second springs, the second springs are fixedly connected with the driving rod, a limiting hole is integrally formed in the right side of the top end of the inside of the shell, and an elastic plate is fixedly arranged on the right side of the top of the shell.

Further, the left side of the driving rod is fixedly provided with a straight needle, and the left side of the bottom end inside the straight needle is integrally provided with a clamping groove.

Compared with the prior art, this multi-functional mechanical linkage abdominal cavity tissue section ligator, can help the operation doctor convenient in the narrow and small cavity of open abdomen operation, it is quick, effectively ligate the broken end of the sectional pipeline of tissue (like the bile duct, the anatomical structure that thick blood vessel etc. can not live through the electricity congeals), only need operation doctor alone to accomplish the ligature process, it is laborsaving to save time, improve operation efficiency greatly, can make things convenient for in narrow and small body cavity, ligate the tissue fast, the danger that the suture needle falls into the body cavity can not appear, reduce the operation risk, can used repeatedly after the disinfection and sterilization. The device solves the problems that manual knotting is easy to cause slipping knots in narrow body cavities, so that the thread knots are scattered, ineffective knotting is realized, secondary damage is caused to the tissue segments, and even secondary operation is required. Through one-way knot barb stylolite ligature device, convenient and fast effectively ligature, the ligature success rate is high.

Drawings

FIG. 1 is a front sectional view of a multifunctional mechanical linkage type abdominal cavity tissue section ligator;

FIG. 2 is a view showing a state in which a straight needle penetrates through the one-way buckle;

FIG. 3 is a state diagram of a straight needle penetrating a curved needle;

FIG. 4 is a top cross-sectional view of the housing and rotating assembly;

FIG. 5 is a partial top cross-sectional view of the housing;

FIG. 6 is a cross-sectional view of the left side of the interior of the housing;

FIG. 7 is a partial cross-sectional view of the housing and moving assembly;

FIG. 8 is a cross-sectional view of a one-way clasp with a one-way barbed suture and a plain suture;

FIG. 9 is a front view of a one-way suture.

The device comprises a shell 1, a rotating component 2, a driving component 3, a guiding component 4, a moving component 5, a one-way buckle 6, a one-way suture 7, a U-shaped push rod 8, a linkage pin 9, a driven wheel 10, a driving gear 11, a connecting plate 12, a displacement strip 13, a curved needle 14, a linkage gear 15, a rack 16, a fixed rod 17, a rotating rod 18, a reset elastic sheet 19, a driving wheel 20, a belt 21, a U-shaped frame 22, a linkage rod 23, a guide groove 24, a driving rod 25, a first spring 26, a limiting block 27, a second spring 28, a limiting hole 29, an elastic plate 30, a straight needle 31 and a clamping groove 32.

The following detailed description will be further described in conjunction with the above-identified drawings.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the multifunctional mechanical linkage type abdominal cavity tissue section ligator comprises a shell 1, the left side of the inside of the shell 1 is provided with a rotating component 2 capable of puncturing the tissue for the first time, the right side of the outer wall of the shell 1 is fixedly provided with a driving component 3 capable of controlling the rotating component 2, the right side of the rotating component 2 is rotated and provided with a guiding component 4, the upper end of the inside of the shell 1 is slidably provided with a moving component 5 capable of puncturing the tissue for the second time, the left side of the top end of the inside of the shell 1 is movably provided with a one-way buckle 6, the inside of the rotating component 2 is provided with a one-way suture 7, the one-way suture 7 is formed by combining a one-way barb suture and a common suture, the lower end of the shell 1 is provided with a U-shaped push rod 8, the rotating component 2 is composed of a linkage pin 9, a driven wheel 10, and a one-way buckle 6, Drive gear 11, connecting plate 12, displacement strip 13, looper 14, linkage gear 15 and rack 16 constitute, the inside left side of casing 1 be equipped with linkage pin 9, the fixed cover in linkage pin 9 outside front end be equipped with from driving wheel 10, the outside rear end slip cover of linkage pin 9 be equipped with drive gear 11, linkage pin 9 establish regional cross section for the square by drive gear 11 cover, the cross section in other regions of linkage pin 9 be circular, drive gear 11 around both ends be equipped with connecting plate 12, connecting plate 12 rotate the cover and locate linkage pin 9, the inside left side slip of connecting plate 12 be equipped with displacement strip 13, drive gear 11 left side teeth of a cogwheel meshing be equipped with looper 14, the inside an organic whole of looper 14 be equipped with the standing groove, both sides and displacement strip 13 rotate to be connected around 14 one end of looper, the fixed cover in both ends around the linkage pin 9 outside be equipped with linkage gear 15, the utility model discloses a motor vehicle steering gear, including casing 1, drive assembly 3, action wheel 20, belt 21, drive wheel 20, belt 21, rack 16, drive assembly 3, drive assembly 4, drive assembly 20, belt 22, drive assembly 3, the inside left side of casing around both ends set firmly rack 16, rack 16 and linkage gear 15 mesh mutually, drive assembly 3 constitute by dead lever 17, bull stick 18, elastic piece 19, the action wheel 20 that resets and belt 21, casing 1 outer wall right side set firmly dead lever 17, the inside right side of casing 1 rotate and be equipped with bull stick 18, bull stick 18 between fixed elastic piece 19 that resets, the inside upper end of bull stick rotate and be equipped with action wheel 20, the outside close-fitting cover of action wheel 20 be equipped with belt 21, the belt 21 other end close-fitting cover locate from driving wheel 10, guide assembly 4 constitute by U-shaped frame 22, trace 23 and guide way 24, the inside left side of casing 1 be equipped with U-shaped frame 22, U-shaped frame 22 both ends rotate with connecting plate 12 at both ends around with respectively and link to each other, the bottom of the U-shaped frame 22 is fixedly provided with a linkage rod 23, the bottom end of the left side inside the shell 1 is integrally provided with a guide groove 24, the guide groove 24 is connected with the linkage rod 23 in a sliding manner, the moving component 5 is composed of a driving rod 25, a first spring 26, a limiting block 27, a second spring 28, a limiting hole 29, an elastic plate 30, a straight needle 31 and a clamping groove 32, the upper end inside the shell 1 is provided with the driving rod 25 in a sliding manner, the right side outside the driving rod 25 is sleeved with the first spring 26, one end of the first spring 26 is fixedly connected with the driving rod 25, the other end of the first spring 26 is fixedly connected with the shell 1, the limiting block 27 is arranged on the right side inside the driving rod 25 in a sliding manner, the second spring 28 is fixedly arranged on the left side and the right side of the bottom of the limiting block 27, the second spring 28 is fixedly connected with the driving rod 25, the limiting hole 29 is integrally arranged on the right side of the top inside the shell 1, the right side of the top of the shell 1 is fixedly provided with an elastic plate 30, the left side of the driving rod is fixedly provided with a straight needle 31, and the left side of the bottom end inside the straight needle 31 is integrally provided with a clamping groove 32.

Before the multifunctional mechanical linkage type abdominal cavity tissue section ligator is used, the second spring 28 is in a deformed state, when the ligator is used, a medical worker firstly puts the one-way buckle 6 at the tail end of the one-way suture 7 into the open slot at the left side of the top end in the shell 1, then winds the one-way suture 7 into the placing slot of the curved needle 14, the one-way suture 7 is thinner and can be put into the placing slot of the curved needle 14, the medical worker pushes the driving rod 25 again, so that the driving rod 25 drives the straight needle 31 to move from right to left along the direction of the shell 1, the first spring 26 is deformed until the clamping slot 32 of the straight needle 31 passes through a channel in the middle of the one-way buckle 6, at the moment, the limiting block 27 and the limiting hole 29 are mutually overlapped, the limiting block 27 is moved into the limiting hole 29 under the action of the resilience force of the second spring 28, the left end of the limiting block 27 is designed in an arc shape, and the right end is designed in a right angle, through the effect of inserting the limit block 27 into the limit hole 29, the situation that the drive rod 25 together with the straight needle 31 and the limit block 27 are reset by the resilience of the first spring 26 is avoided, medical personnel holds the fixed rod 17 and the rotating rod 18 again, the left end of the shell 1 is moved to a narrow surgical site of a patient, and presses the rotating rod 18 by hands, so that the rotating rod 18 drives the driving wheel 20 together with the belt 21, the driven wheel 10 and the linkage pin 9 to rotate anticlockwise and synchronously, the linkage pin 9 drives the driving gear 11 together with the linkage gear 15 to rotate anticlockwise, the reset elastic sheet 19 deforms, the curved needle 14 rotates clockwise through the meshing effect of the driving gear 11 and the curved needle 14, in the rotating process of the curved needle 14, the displacement strip 13 moves along the direction of the connecting plate 12, the stability of the mutual meshing of the driving gear 11 and the curved needle 14 is ensured, in addition, through the meshing effect of the linkage gear 15 and the rack 16, so that the linkage gear 15 drives the linkage pin 9 together with the driven wheel 10, the U-shaped frame 22, the driving gear 11 and the curved needle 14 to move from right to left along the direction of the shell 1, that is, the curved needle 14 moves out of the shell 1, and simultaneously, the U-shaped frame 22 moving from left to right drives the linkage rod 23 to move from back to front along the direction of the guide groove 24, and finally, the curved needle 14 moves out of the shell 1 in a clockwise spiral rotation state, at this time, the curved needle 14 carries the one-way suture 7 to pass through the tissue structure, and the placement groove at the curved needle 14 faces the path of the straight needle 31, the medical staff continues to press the driving rod 25, the left end surface of the limiting block 27 presses the limiting hole 29 to move into the driving rod 25, and the second spring 28 deforms, and the driving rod 25 pressed again pushes the straight needle 31 to extend out of the shell 1, that is, that the straight needle 31 extending out of the shell 1 enters the tissue and passes through the placement groove in the curved needle 14, the medical staff releases the driving rod 25 again by hand, through the action of the resilience force of the first spring 26, the driving rod 25 drives the straight needle 31 to retract into the shell 1, until the limiting block 27 coincides with the limiting hole 29 again, the limiting block 27 moves into the limiting hole 29 again through the action of the resilience force of the second spring 28, namely, the state that the straight needle 31 moves into the shell 1 is fixed, namely, the straight needle 31 is separated from the placing groove in the curved needle 14, in the process that the straight needle 31 retracts into the shell 1, the clamping groove 32 at the position of the straight needle 31 catches the one-way suture 7 in the placing groove in the curved needle 14, the straight needle is taken out of the tissue structure, after the clamping groove 32 in the straight needle 31 is determined to catch the one-way suture 7, the medical staff eliminates the force of pressing the rotating rod 18 by hand, through the action of the resilience force of the resetting elastic sheet 19, the rotating rod 18 rotates clockwise, otherwise, the curved needle 14 is to be reset, the medical staff presses the elastic sheet 30 by hand again, therefore, the limiting block 27 is separated from the limiting hole 29, the driving rod 25 drives the straight needle 31 to reset under the action of the resilience force of the first spring 26, namely, the straight needle 31 is separated from a channel in the one-way buckle 6, meanwhile, the clamping groove 32 in the straight needle 31 catches the one-way buckle 6 of the one-way suture 7 passing through the tail end of the one-way suture 7, the one-way buckle 6 is confirmed to pass through the one-way suture 7, the device can be removed, medical personnel can use the U-shaped push rod 8 to clamp the one-way buckle 6, use the other hand or needle forceps to clamp the tail end of the one-way suture 7, pull out the one-way buckle 6 slowly until the one-way buckle 6 is pulled out of the one-way suture 7, at the moment, can pull out a knot, adjust the tightness, finish the ligation of tissues, and cut off the long thread at the tail end after the ligation.

Claims

1. Multifunctional mechanical coordinated type abdominal cavity tissue section ligator, its characterized in that includes the casing, the inside left side of casing be equipped with the rotating assembly that can carry out the first puncture to the tissue, casing outer wall right side set firmly the drive assembly that can control to the rotating assembly, the rotating assembly right side rotate and be equipped with the direction subassembly, the inside upper end of casing slide and be equipped with the removal subassembly that can carry out the secondary puncture to the tissue, the inside top left side activity of casing be equipped with one-way knot, the inside one-way suture that is equipped with of rotating assembly, one-way suture form by one-way barb suture and ordinary suture combination, the casing lower extreme be equipped with the U-shaped push rod.

2. The multifunctional mechanical linkage type abdominal cavity tissue section ligator as claimed in claim 1, wherein the rotating assembly is composed of a linkage pin, a driven wheel, a driving gear, a connecting plate, a displacement strip, a curved needle, a linkage gear and a rack, the linkage pin is arranged on the left side inside the shell, and the driven wheel is fixedly sleeved at the front end outside the linkage pin.

3. The multifunctional mechanical linkage type abdominal cavity tissue section ligator as claimed in claim 1, wherein the sliding sleeve at the rear end outside the linkage pin is provided with a driving gear, the cross section of the linkage pin in the region sleeved by the driving gear is square, the cross sections of other regions of the linkage pin are circular, the front end and the rear end of the driving gear are provided with connecting plates, the connecting plates are rotatably sleeved on the linkage pin, and the left side inside the connecting plates is provided with a displacement strip in a sliding manner.

4. The multifunctional mechanical linkage type ligator for abdominal cavity tissue section according to claim 3, wherein the left gear of the driving gear is engaged with a curved needle, the curved needle is integrally provided with a placing groove inside, the front and rear sides of one end of the curved needle are rotatably connected with the displacement bar, the front and rear ends of the linkage pin are fixedly provided with a linkage gear, the front and rear ends of the left side inside the casing are fixedly provided with a rack, and the rack is engaged with the linkage gear.

5. The multifunctional mechanical linkage type abdominal cavity tissue section ligator as claimed in claim 1, wherein the driving assembly comprises a fixing rod, a rotating rod, a reset elastic sheet, a driving wheel and a belt, the fixing rod is fixedly arranged on the right side of the outer wall of the shell, the rotating rod is rotatably arranged on the right side inside the shell, the reset elastic sheet is fixedly arranged between the rotating rod and the fixing rod, the driving wheel is rotatably arranged on the upper end inside the rotating rod, the belt is tightly sleeved on the outer portion of the driving wheel, and the driven wheel is tightly sleeved on the other end of the belt.

6. The multifunctional mechanical linkage type ligator for abdominal cavity tissue section as claimed in claim 1, wherein the guiding assembly comprises a U-shaped frame, a linkage rod and a guiding groove, the U-shaped frame is disposed on the left side inside the housing, two ends of the U-shaped frame are rotatably connected with the connecting plates at the front and rear ends respectively, the linkage rod is fixedly disposed at the bottom of the U-shaped frame, the guiding groove is integrally disposed at the bottom end of the left side inside the housing, and the guiding groove is slidably connected with the linkage rod.

7. The multifunctional mechanical linkage type abdominal cavity tissue section ligator according to claim 1, wherein the moving assembly comprises a driving rod, a first spring, a limiting block, a second spring, a limiting hole, an elastic plate, a straight needle and a clamping groove, and the driving rod is slidably arranged at the upper end inside the shell.

8. The multifunctional mechanical linkage type ligator for abdominal tissue section according to claim 7, wherein a first spring is sleeved on the right side outside the driving rod, one end of the first spring is fixedly connected with the driving rod, the other end of the first spring is fixedly connected with the housing, and a limiting block is slidably arranged on the right side inside the driving rod.

9. The multifunctional mechanical linkage type ligator for abdominal tissue section according to claim 8, wherein the second springs are fixedly arranged on the left and right sides of the bottom of the limiting block, the second springs are fixedly connected with the driving rod, the limiting hole is integrally formed on the right side of the top end inside the casing, and the elastic plate is fixedly arranged on the right side of the top of the casing.

10. The multifunctional mechanical linkage type ligator for abdominal tissue section according to claim 7, wherein a straight needle is fixedly arranged on the left side of the driving rod, and a clamping groove is integrally formed on the left side of the bottom end inside the straight needle.