CN113558689A

CN113558689A - Abdominal tissue section ligation device

Info

Publication number: CN113558689A
Application number: CN202110850798.9A
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: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-10-29

Abstract

The invention discloses a ligature device for abdominal cavity tissue sections, which comprises a shell, wherein a rotating mechanism capable of puncturing tissues for the first time is arranged on the left side inside the shell, a driving mechanism capable of controlling the rotating mechanism is fixedly arranged on the right side of the outer wall of the shell, a guide mechanism is rotatably arranged on the right side of the rotating mechanism, and a moving mechanism capable of puncturing the tissues for the second time is slidably arranged at the upper end inside the shell. 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.

Description

Abdominal tissue section ligation device

Technical Field

The invention relates to the technical field of medical appliances, in particular to a ligature device for abdominal tissue sections.

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 drawbacks, it is necessary to design a ligation device for abdominal tissue section.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a ligaturing device for abdominal tissue section to solve the problems in the background technology.

In order to solve the technical problems, the technical scheme of the invention is as follows: abdominal cavity tissue section ligation device, which comprises a housin, the inside left side of casing be equipped with the rotary mechanism that can carry out the first puncture to the tissue, casing outer wall right side set firmly the actuating mechanism that can carry out control to rotary mechanism, the rotary mechanism right side rotate and be equipped with guiding mechanism, the inside upper end of casing slide and be equipped with the moving mechanism that can carry out the secondary puncture to the tissue, the inside top left side activity of casing be equipped with one-way buckle, rotary mechanism inside be equipped with one-way suture, 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, rotary mechanism by the commentaries on classics round pin, follow driving wheel, drive gear, connecting plate, slide, looper, linkage gear and rack constitute, the inside left side of casing be equipped with the commentaries on classics round pin, the outside front end fixed cover of commentaries on classics round pin be equipped with from the driving wheel.

Further, the outside rear end slip cap of commentaries on classics round pin be equipped with drive gear, the round pin establish regional cross section by drive gear cover for the square, the round pin cross section in other regions be circular, drive gear around both ends be equipped with the connecting plate, the connecting plate rotate the cover and locate the commentaries on classics round pin, the inside left side of connecting plate slip be equipped with the slide.

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, both sides rotate with the slide around looper one end and be connected, the outside fixed cover in both ends around the commentaries on classics round pin be equipped with the linkage gear, the inside left side of casing both ends have set firmly the rack around, rack and linkage gear mesh mutually.

Further, actuating mechanism constitute by dead lever, bull stick, elastic sheet, 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 fixed elastic sheet, 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, belt other end tight fit cover locate from the driving wheel.

Further, guiding mechanism constitute by U-shaped frame, connecting rod 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 connecting rod has set firmly, the inside left side bottom an organic whole of casing be equipped with the guide way, guide way and connecting rod sliding connection.

Further, the moving mechanism 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 arranged at the upper end inside the shell in a sliding mode.

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 abdominal cavity tissue section ligation device, can help the operation doctor convenient in the narrow and small cavity of the operation of opening the abdomen, quick, effectively ligate the sectional pipeline of tissue (like the bile duct, thick blood vessel etc. can not stop the anatomical structure through the electricity congeals) disconnected end, only need operation doctor alone can 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, ligature the tissue fast, the danger that the suture needle fell into the body cavity can not appear, reduce the operation risk, can used repeatedly after the disinfection. 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 cross-sectional ligature device for abdominal tissue;

fig. 2 is a top cross-sectional view of the housing and rotating mechanism;

FIG. 3 is a partial top cross-sectional view of the housing;

FIG. 4 is a cross-sectional view of the interior left side of the housing;

FIG. 5 is a partial cross-sectional view of the housing and the movement mechanism;

FIG. 6 is a cross-sectional view of a one-way clasp with a one-way barbed suture and a plain suture;

FIG. 7 is a view showing a state in which the straight pin penetrates the one-way clutch;

FIG. 8 is a state view of a straight needle penetrating a curved needle;

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

The device comprises a shell 1, a rotating mechanism 2, a driving mechanism 3, a guide mechanism 4, a moving mechanism 5, a one-way buckle 6, a one-way suture 7, a U-shaped push rod 8, a rotating pin 9, a driven wheel 10, a driving gear 11, a connecting plate 12, a sliding plate 13, a curved needle 14, a linkage gear 15, a rack 16, a fixed rod 17, a rotating rod 18, an elastic sheet 19, a driving wheel 20, a belt 21, a U-shaped frame 22, a connecting 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 abdominal cavity tissue section ligation device comprises a shell 1, a rotating mechanism 2 capable of puncturing the tissue for the first time is arranged on the left side inside the shell 1, a driving mechanism 3 capable of controlling the rotating mechanism 2 is fixedly arranged on the right side of the outer wall of the shell 1, a guiding mechanism 4 is arranged on the right side of the rotating mechanism 2 in a rotating mode, a moving mechanism 5 capable of puncturing the tissue for the second time is arranged on the upper end inside the shell 1 in a sliding mode, a one-way buckle 6 is movably arranged on the left side of the top end inside the shell 1, a one-way suture 7 is arranged inside the rotating mechanism 2, the one-way suture 7 is formed by combining a one-way barb suture and a common suture, a U-shaped push rod 8 is arranged on the lower end of the shell 1, and the rotating mechanism 2 is composed of a rotating pin 9, a driven wheel 10, a driving gear 11 and a driving gear 11, Connecting plate 12, slide 13, looper 14, linkage gear 15 and rack 16 constitute, the inside left side of casing 1 be equipped with commentaries on classics round pin 9, the fixed cover in the outside front end of commentaries on classics round pin 9 be equipped with from driving wheel 10, the outside rear end of commentaries on classics round pin 9 slip the cover and be equipped with drive gear 11, commentaries on classics round pin 9 establish regional cross section for the square by drive gear 11 cover, the cross section in other regions of commentaries on classics round pin 9 be circular, drive gear 11 both ends be equipped with connecting plate 12 around, connecting plate 12 rotate the cover and locate commentaries on classics round pin 9, the inside left side of connecting plate 12 slip and be equipped with slide 13, drive gear 11 left side gear teeth meshing be equipped with looper 14, the inside an organic whole of looper 14 be equipped with the standing groove, both sides rotate with slide 13 around 14 one end of looper and be connected, the fixed cover of both ends around commentaries on classics round pin 9 outside be equipped with linkage gear 15, the inside left side of casing 1 both ends have set firmly rack 16 around, rack 16 and linkage gear 15 mesh mutually, actuating mechanism 3 constitute by dead lever 17, bull stick 18, elastic sheet 19, action wheel 20 and belt 21, casing 1 outer wall right side have set firmly dead lever 17, the inside right side of casing 1 rotate and be equipped with bull stick 18, bull stick 18 and dead lever 17 between fixed elastic sheet 19, the inside upper end of bull stick 18 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, guiding mechanism 4 constitute by U-shaped frame 22, connecting rod 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 the connecting plate 12 at both ends around respectively and link to each other, U-shaped frame 22 bottom set firmly connecting rod 23, the inside left side bottom of casing 1 integrative be equipped with guide way 24, guide way 24 and connecting rod 23 sliding connection, moving mechanism 5 constitute by actuating lever 25, first spring 26, stopper 27, second spring 28, spacing hole 29, elastic plate 30, straight needle 31 and draw-in groove 32, the inside upper end of casing 1 slip and be equipped with actuating lever 25, the outside right side cover of actuating lever 25 be equipped with first spring 26, first spring 26 one end and actuating lever 25 fixed connection, the first spring 26 other end and casing 1 fixed connection, the inside right side of actuating lever 25 slip and be equipped with stopper 27, stopper 27 bottom left and right sides second spring 28 has set firmly, second spring 28 and actuating lever 25 fixed connection, the inside top right side of casing 1 integrative be equipped with spacing hole 29, casing 1 top right side set firmly elastic plate 30 the actuating lever left side set firmly straight needle 31, a clamping groove 32 is integrally formed in the left side of the bottom end in the straight needle 31.

Before the abdominal cavity tissue section ligation device is used, the second spring 28 is in a deformed state, when the abdominal cavity tissue section ligation device is used, medical personnel firstly place 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 wind the one-way suture 7 into the placing slot of the curved needle 14, the one-way suture 7 is thinner and can be placed into the placing slot of the curved needle 14, the medical personnel further push the driving rod 25, so that the driving rod 25 drives the straight needle 31 to move from right to left along the direction of the shell 1, synchronously, the first spring 26 deforms 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 to be inserted into the limiting hole 29 through the action of the limiting block 27, the situation that the driving rod 25 together with the straight needle 31 and the limiting block 27 are reset by the resilience force of the first spring 26 is avoided, medical staff holds the fixing rod 17 and the rotating rod 18 again, the left end of the shell 1 is moved into a narrow surgical site of a patient, then 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 rotating pin 9 to rotate anticlockwise and synchronously, the rotating pin 9 drives the driving gear 11 together with the linkage gear 15 to rotate anticlockwise, the elastic sheet 19 deforms, the curved needle 14 rotates clockwise under the action of the gear meshing of the driving gear 11 and the curved needle 14, the sliding plate 13 moves along the direction of the connecting plate 12 in the rotating process of the curved needle 14, the stability of the mutual meshing of the driving gear 11 and the curved needle 14 is ensured, in addition, the linkage gear 15 drives the rotating pin 9 together with the driven wheel 10 through the action of the linkage gear 15 meshing with the rack 16, The U-shaped frame 22, the driving gear 11 and the curved needle 14 move from right to left along the direction of the housing 1, that is, the curved needle 14 moves out of the housing 1, and at the same time, the U-shaped frame 22 moving from left to right drives the connecting rod 23 to move from back to front along the direction of the guiding groove 24, and finally the curved needle 14 moves out of the housing 1 in a state of clockwise spiral rotation, at this time, the curved needle 14 carries the one-way suture 7 to pass through the tissue structure, and the placing 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 face of the limiting block 27 presses the limiting hole 29 to be moved into the driving rod 25, and the second spring 28 is deformed, the driving rod 25 pressed again pushes the straight needle 31 to extend out of the housing 1, that is, that the straight needle 31 extending out of the housing 1 enters the tissue, and passes through the placing groove in the curved needle 14, and the medical staff releases the driving rod 25 by hand, under 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 limit block 27 is overlapped with the limit hole 29 again, the limit block 27 is moved into the limit hole 29 again through the action of the resilience force of the second spring 28, namely, the state that the straight needle 31 is moved 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 straight needle 31 catches the one-way suture 7 in the placing groove in the curved needle 14 to bring the straight needle 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 force of pressing the rotating rod 18 by the hand of medical staff is eliminated, the rotating rod 18 is rotated clockwise through the action of the resilience force of the elastic sheet 19, the operation step is contrary to be about the resetting of the curved needle 14, the medical staff presses the elastic sheet 30 by the hand again to separate the limit block 27 from the limit hole 29, through the effect of the resilience force of the first spring 26, the driving rod 25 drives the straight needle 31 to reset, 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 when the one-way suture 7 passes through the tail end of the one-way suture 7, the one-way buckle 7 is confirmed to pass through the one-way buckle, the device can be removed, medical workers can use the U-shaped push rod 8 to compare the one-way buckle 6, clamp the tail end of the one-way suture 7 by using the other hand or needle forceps, slowly pull out the one-way buckle 6 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, can finish the ligation of tissues, and cut off the long thread at the tail end after the ligation is finished.

Claims

1. Abdominal cavity tissue section ligation device, its characterized in that includes the casing, the inside left side of casing be equipped with the rotary mechanism that can carry out the first puncture to the tissue, casing outer wall right side set firmly the actuating mechanism that can carry out control to rotary mechanism, rotary mechanism right side rotate and be equipped with guiding mechanism, the inside upper end of casing slide and be equipped with the moving mechanism that can carry out the secondary puncture to the tissue, the inside top left side activity of casing be equipped with one-way knot, rotary mechanism inside be equipped with one-way suture, 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 abdominal cavity tissue section ligation device according to claim 1, wherein the rotation mechanism comprises a rotation pin, a driven wheel, a driving gear, a connecting plate, a sliding plate, a curved needle, a linkage gear and a rack, the rotation pin is arranged on the left side inside the housing, and the driven wheel is fixedly sleeved at the front end of the outer part of the rotation pin.

3. The device for ligating a cross section of an abdominal cavity tissue according to claim 1, wherein a driving gear is slidably sleeved on the rear end of the outer portion of the rotating pin, the cross section of the area of the rotating pin sleeved with the driving gear is square, the cross sections of other areas of the rotating pin are circular, connecting plates are arranged at the front end and the rear end of the driving gear, the connecting plates are rotatably sleeved on the rotating pin, and a sliding plate is slidably arranged on the left side inside the connecting plates.

4. The abdominal cavity tissue section ligation device 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 placement groove inside, the front and rear sides of one end of the curved needle are rotatably connected with the sliding plate, the front and rear ends of the outer part of the rotating pin are fixedly sleeved with a linkage gear, the front and rear ends of the left side inside the housing are fixedly provided with racks, and the racks are engaged with the linkage gear.

5. The abdominal cavity tissue section ligation device according to claim 1, wherein the driving mechanism comprises a fixing rod, a rotating rod, an elastic sheet, a driving wheel and a belt, the fixing rod is fixedly arranged on the right side of the outer wall of the casing, the rotating rod is rotatably arranged on the right side inside the casing, the elastic sheet is fixed between the rotating rod and the fixing rod, the driving wheel is rotatably arranged at the upper end inside the rotating rod, the belt is tightly sleeved outside the driving wheel, and the driven wheel is tightly sleeved at the other end of the belt.

6. The abdominal cavity tissue section ligation device according to claim 1, wherein the guiding mechanism comprises a U-shaped frame, a connecting rod and a guiding groove, the U-shaped frame is arranged on the left side inside the housing, two ends of the U-shaped frame are respectively connected with the connecting plates at the front end and the rear end in a rotating manner, the connecting rod is fixedly arranged at the bottom of the U-shaped frame, the guiding groove is integrally arranged at the bottom end of the left side inside the housing, and the guiding groove is connected with the connecting rod in a sliding manner.

7. The device for ligating the cross section of an abdominal tissue according to claim 1, wherein the moving mechanism 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 disposed at the upper end inside the housing.

8. The device for ligating a cross section of an abdominal cavity tissue 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 device for ligating the cross section of the abdominal cavity tissue according to claim 8, wherein the second springs are fixedly disposed 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 disposed on the right side of the top end of the inside of the housing, and the elastic plate is fixedly disposed on the right side of the top of the housing.

10. The device for ligating the cross section of an abdominal tissue as claimed in claim 7, wherein a straight needle is fixedly provided on the left side of the driving rod, and a slot is integrally provided on the left side of the bottom end inside the straight needle.