Automatic ligation forceps

Abstract

The present invention belongs to the technical field of medical devices, and specifically, relates to an automatic ligation forceps, including a handle, a clamp tube, a clamp head, and a clamp; the handle is composed of a movable handle and a fixing device, and the movable handle is symmetrically arranged on both sides of the fixing device; the clamp tube is composed of an outer clamp tube and an inner clamp tube, the outer clamp tube wraps the inner clamp tube, and the clamp is installed in the inner clamp tube; the clamp head is composed of a first clamp mouth and a second clamp mouth, the first clamp mouth is the same as the second clamp mouth and is symmetrically arranged and has a groove inside; the handle is fixedly sleeved on one end of the clamp tube, and the other end of the clamp tube is connected to the clamp head. The beneficial effects of the present invention are easy to operate and use, saving time and labor costs, and being clean and hygienic.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an automatic ligation forceps. Background Art

[0002] In clinical surgical operations, the incision is fully exposed to the field of vision, and the broken blood vessels in the incision need to be ligated to stop bleeding. Hemostasis technology has become one of the core basic operations of surgical operations. Surgical operations on any part of the human body involve bleeding and hemostasis without exception. At present, in clinical operations, ligation clips such as Hem-o-lok ligation clips are often used to treat blood vessels. In existing technologies, ligation clips are very small and can only be operated by tools such as ligation forceps.

[0003] For example, Chinese utility model patent application No. 201220062350.7 discloses a ligation forceps, including a fixed handle, a movable handle, a clamp rod, a push rod, an inner rod, a rotating wheel and a spring clamp, wherein the fixed handle and the movable handle are connected by bolts, the rotating wheel is inserted into the fixed handle, and the clamp rod is inserted into the fixed handle and fixed by welding; the movable handle is provided with a push rod seat, the push rod is provided with a push rod groove, the clamp rod is hollow, the push rod is inserted into the clamp rod, the push rod seat is clamped into the push rod groove and matched with each other; the push rod is hollow, the inner rod passes through the push rod, the front end of the inner rod is connected to the spring clamp, the rear end of the inner rod penetrates the fixed handle and is fixed with the rotating wheel; the spring clamp is provided with a slot; the fixed handle and the movable handle are both provided with a reset spring, the front ends of the two reset springs are pressed against each other, and the rear ends are respectively fixed to the fixed handle and the movable handle by screws. The utility model has a reasonable structural design, and the ligation clamp is clamped into the slot of the spring clamp, which can effectively clamp organs and blood vessels in the human body.

[0004] For another example, Chinese invention patent application No. 201510681311.3 discloses a one-time double-clip cutting clamp, including a double-clip structure, a double-clamp mechanism, a clamp transmission mechanism, a cutting blade and a cutting transmission mechanism, a rotating mechanism and a fixed handle mechanism. The one-time double-clip cutting clamp can accurately fix the length of both ends of the blood vessel, tie and close both ends of the blood vessel at the same time, and cut the blood vessel from the middle that has been tied and closed at both ends. There will be no extra ligation of blood vessels, and no extra cutting of blood vessels, which significantly reduces the damage to healthy tissues of the human body. The tightening and cutting of blood vessels are completed at one time by the same instrument, and the surgeon does not need to first insert the ligating forceps into the human body, tie and close both ends of the blood vessel, and then take the ligating forceps out of the human body, insert the cutting instrument into the human body, and cut the blood vessel. It significantly and effectively improves the speed of the operation and reduces the risk of the operation. In addition, the ligating clip used is a self-locking plastic clip that is inverted, firm and reliable and will not fall off. The ligating clip made of retractable material automatically decomposes in the human body in 6 to 8 months.

[0005] For another example, Chinese invention patent application No. 200910101281.9 discloses a medical continuous-fire titanium clamp, which is mainly suitable for clamping blood vessels in human surgical hands. The clamp comprises a handle portion and a clamp rod portion, and is characterized in that a titanium clamp-in-place clamping device and a handle clamping and resetting device are also provided in the handle portion, which are located in the handle portion; the titanium clamp-in-place clamping device is located at the rear end of the clamp rod portion and is connected to the clamp rod portion; the handle clamping and resetting device is matched with and connected to the titanium clamp-in-place clamping device; the titanium clamp push rod joint is connected to the titanium clamp push rod through a push rod pin, and the clamp push rod joint is connected to the clamp push rod through a push rod pin, which is suitable for minimally invasive surgery. During the operation, the titanium clamp can be automatically fired continuously, which is convenient and reliable to use, and even if a misoperation occurs, it will not affect the filling of the titanium clamp; the titanium clamp is provided with a protective device, the clamp rod can rotate 360°, the operation time is short, the amount of bleeding is small, and the risk of surgery is reduced.

[0006] It can be seen from the above technology that the existing ligation forceps solve the problem of hemostasis or less bleeding, but do not provide the problem of withdrawing and re-binding during surgery, wasting time and labor costs, and being inconvenient and unhygienic to operate. Summary of the invention

[0007] In view of the above-mentioned deficiencies in the prior art, the inventors have proposed an automatic ligation forceps;

[0008] The automatic ligation forceps include a handle, a forceps tube, a forceps head, and a clamp; the handle consists of a movable handle and a fixing device, and the movable handle is symmetrically arranged on both sides of the fixing device; the forceps tube consists of an outer forceps tube and an inner forceps tube, the outer forceps tube wraps the inner forceps tube, and the clamp is installed in the inner forceps tube; the forceps head consists of a first forceps mouth and a second forceps mouth, the first forceps mouth is identical to the second forceps mouth and is symmetrically arranged and has a groove inside; the handle is fixedly sleeved on one end of the forceps tube, and the other end of the forceps tube is connected to the forceps head.

[0009] Furthermore, the fixing device is composed of a shell, a first handle rod, a second handle rod, a retaining spring, and a spring sheet. The shell is arranged in the middle of the movable handle, and the two sides of the shell are cross-intersected by the first handle rod and the second handle rod and extend into the movable handle. The intersection of the first handle rod and the second handle rod is connected by the retaining spring, and the other ends of the first handle rod and the second handle rod extend into the inside of the clamp tube, and the extended ends of the first handle rod and the second handle rod are fixedly connected by the spring sheet.

[0010] Furthermore, the middle part of the spring piece abuts against the rear end of a pressure rod arranged in the inner clamp tube, and the front end of the pressure rod abuts against the clamp.

[0011] Furthermore, an inner clamp tube is fixedly arranged on the outer side of the middle part of the spring piece, and an outer clamp tube is fixedly arranged on the outer edge of the spring piece.

[0012] Furthermore, at least one clamping belt is disposed against the inner wall of the inner clamp tube.

[0013] Furthermore, a plurality of card strips are fixedly arranged on the cassette, the card strips are fixed on the cassette, and the protruding part of the cassette is arc-shaped.

[0014] Furthermore, the rear end of the cassette is fixedly connected to the spring sheet, and the front end is connected to the pliers mouth.

[0015] Furthermore, one end of the inner clamp tube connected to the clamp head is provided with a first convex corner and a second convex corner, and a rolling rod is vertically fixed between the first convex corner and the second convex corner.

[0016] Furthermore, a through hole is arranged in the middle of the rolling rod, and the diameter of the through hole is larger than that of the clip.

[0017] Furthermore, the first jaw and the second jaw are symmetrically arranged on both sides of the first convex corner and the second convex corner respectively.

[0018] Furthermore, the pressure rod is hollow, and a spring is arranged in the hollow core.

[0019] Furthermore, the outer clamp tube and the inner clamp tube are both cylindrical or rectangular.

[0020] Compared with the prior art, the automatic ligation forceps provided by the present invention has the following beneficial effects:

[0021] 1. The automatic ligation forceps provided by the present invention do not need to be withdrawn and re-ligated during surgery, and are easy to operate and use.

[0022] 2. The automatic ligation forceps provided by the present invention saves time and labor costs and is clean and hygienic. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of an automatic ligation forceps provided by the present invention;

[0024] Figure 2 It is a schematic diagram of a fixing device of an automatic ligation forceps provided by the present invention;

[0025] Figure 3 It is a schematic diagram of a cross section of a clamp head of an automatic ligation clamp provided by the present invention;

[0026] Figure 4 It is a front view schematic diagram of a clamp head of an automatic ligation clamp provided by the present invention;

[0027] Figure 5 It is a schematic cross-sectional view of an outer clamp tube of an automatic ligation forceps provided by the present invention;

[0028] Figure 6 The present invention is a schematic diagram of a cross-section of an outer clamp tube of an automatic ligation forceps provided by the present invention.

[0029] Markings in the figure: 1-handle, 11-fixing device, 111-shell, 121-first handle rod, 122-second handle rod, 123-circlip, 124-spring; 2-pliers tube, 21-outer pliers tube, 22-inner pliers tube, 221 first convex angle, 222-second convex angle, 23-cassette, 24-clip strip, 25-pressure rod; 3-pliers head, 31-first pliers mouth, 32-groove, 33-second pliers mouth; 4-roller rod, 41-through hole; 5-radial push rod; 6-push groove; 7-clip. DETAILED DESCRIPTION

[0030] Example 1

[0031] like Figures 1 to 4 As shown, the automatic ligation forceps include a handle 1, a clamp tube 2, a clamp head 3, and a clamp 7; the handle is composed of a movable handle (not shown) and a fixing device 11, and the movable handle is symmetrically arranged on both sides of the fixing device 11; the clamp tube 2 is composed of an outer clamp tube 21 and an inner clamp tube 22, the outer clamp tube 21 wraps the inner clamp tube 22, and the clamp 7 is installed in the inner clamp tube 22; the clamp head 3 is composed of a first clamp mouth 31 and a second clamp mouth 33, the first clamp mouth 31 and the second clamp mouth 33 are symmetrically arranged and both are provided with a groove 32; the handle 1 is fixedly sleeved on one end of the clamp tube 2, and the other end of the clamp tube 2 is connected to the clamp head 3.

[0032] Furthermore, the fixing device 11 is composed of a shell 111, a first handle rod 121, a second handle rod 122, a retaining spring 123, and a spring piece 124. The shell 111 is arranged in the middle of the movable handle. The first handle rod 121 and the second handle rod 122 extend into the movable handle in a cross-shaped manner on both sides of the shell 111. The intersection of the first handle rod 121 and the second handle rod 122 is connected by the retaining spring 123. The other ends of the first handle rod 121 and the second handle rod 122 extend into the interior of the clamp tube 2, and the extended ends of the first handle rod 121 and the second handle rod 122 are fixedly connected by the spring piece 124.

[0033] Furthermore, the middle part of the spring sheet 124 abuts against the rear end of the pressure rod 25 set in the inner clamp tube 22, and the front end of the pressure rod 25 abuts against the clip 7. Through the squeezing of the first handle rod 121 and the second handle rod 122, the spring sheet 124 is deformed and pushes the pressure rod 25 to move, so that the clip 7 in the inner clamp tube 22 moves forward.

[0034] Furthermore, an inner clamp tube 22 is fixedly disposed on the outer side of the middle portion of the spring piece 124 , and an outer clamp tube 21 is fixedly disposed on the outer edge of the spring piece 124 .

[0035] In this embodiment, the vertical distance between the inner wall surface of the inner clamp tube 22 and the center point of the spring piece 124 is 0.1-1 cm, the distance between the inner clamp tube 22 and the outer clamp tube 21 is 0.5-2 cm, and the length of the outer clamp tube 21 is 0.1-1 cm greater than the length of the inner clamp tube 22. Through the contraction movement of the spring piece 124, the outer clamp tube 21 squeezes the clamp head 3, so that the first clamp mouth 31 and the second clamp mouth 33 are closed.

[0036] Furthermore, at least one clamping belt 23 is disposed against the inner wall of the inner clamp tube 22 . In this embodiment, two clamping belts 23 are provided.

[0037] Furthermore, a plurality of clamping strips 24 are fixedly disposed on the clamping strip 23 . The clamping strips 24 are fixed on the clamping strip 23 . The protruding portion of the clamping strip 23 is arc-shaped.

[0038] Furthermore, the rear end of the cassette 23 is fixedly connected to the spring piece 124 , and the front end is connected to the pliers mouth 31 .

[0039] Furthermore, a first convex corner 221 and a second convex corner 222 are provided at one end of the inner clamp tube 22 connected to the clamp head 3 , and a roller bar 4 is vertically fixed between the first convex corner 221 and the second convex corner 222 .

[0040] Furthermore, a through hole 41 is provided in the middle of the rolling rod 4 , and a diameter of the through hole 41 is larger than that of the clip 7 .

[0041] Furthermore, the first jaw 31 and the second jaw 33 are symmetrically arranged on both sides of the first convex corner 221 and the second convex corner 222 .

[0042] Furthermore, the pressure rod 25 is hollow, and a spring is arranged inside the hollow core. The compression force of the spring is 10 kgf / mm, and the number of the loading clips 7 is determined according to the compression force of the spring.

[0043] Furthermore, the outer clamp tube 21 and the inner clamp tube 22 are both cylindrical or rectangular.

[0044] Furthermore, the inner diameter of the outer clamp tube 21 is larger than that of the clamp 7 .

[0045] Example 2

[0046] like Figure 5 As shown, the outer clamp tube 21 is a cylinder, the rear end of the cylinder abuts against the spring piece 124, the front end of the cylinder is provided with a radial push rod 5 protruding outward, the radial push rod 5 abuts against the outer wall of the inner clamp tube 22, the radial push rod 5 is a long strip, and the rest of the structure is the same as that of Example 1.

[0047] Example 3

[0048] The radial push rod 5 abuts against the outer wall of the inner clamp tube 22 to replace the outer clamp tube 21 , and the rest of the structure is the same as that of the first embodiment.

[0049] Example 4

[0050] like Figure 6 As shown, at least two push grooves 6 are arranged on the outer wall of the inner clamp tube 22, and radial push rods 5 are arranged in the push grooves 6. The radial push rods 5 are pressed against the push grooves 6 and can move in the push grooves 6. At least two push grooves 6 are arranged on the outer wall of the inner clamp tube 22, and radial push rods 5 are arranged in the push grooves 6. The radial push rods 5 are pressed against the push grooves 6 to replace the outer clamp tube 21. The rest of the structures are the same as those in Example 1.

[0051] The present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the structure and scope of the present invention, the present invention may have various changes and improvements. These changes and improvements shall all fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims.

Claims

1. An automatic ligation forceps, characterized in that: The invention comprises a handle, a pliers tube, a pliers head and a clamp; the handle comprises a movable handle and a fixing device, and the movable handle is symmetrically arranged on both sides of the fixing device; the fixing device comprises a shell, a first handle rod, a second handle rod, a retaining spring and a spring piece, the shell is arranged in the middle of the movable handle, and the two sides of the shell are cross-intersected by the first handle rod and the second handle rod and extend into the movable handle, the intersection of the first handle rod and the second handle rod is connected by the retaining spring, the other ends of the first handle rod and the second handle rod extend into the pliers tube, and the extended ends of the first handle rod and the second handle rod are fixedly connected by the spring piece; the middle part of the spring piece abuts against the rear end of the pressure rod arranged in the inner pliers tube, and the front end of the pressure rod abuts against the A clamp is arranged, an inner clamp tube is fixedly arranged on the outer side of the middle part of the spring sheet, and an outer clamp tube is fixedly arranged on the outer edge of the spring sheet; the clamp tube is composed of an outer clamp tube and an inner clamp tube, the outer clamp tube wraps the inner clamp tube, a clamp is arranged in the inner clamp tube, one end of the inner clamp tube connected to the clamp head is provided with a first convex angle and a second convex angle, and a roller is vertically fixedly arranged between the first convex angle and the second convex angle; at least one cassette is arranged against the inner arm of the inner clamp tube, a plurality of clamp strips are fixedly arranged on the cassette, the clamp strips are fixed on the cassette, the protruding part of the cassette is arc-shaped, the rear end of the cassette is fixedly connected to the spring sheet, and the front end is connected to the clamp mouth; the clamp head is composed of a first clamp mouth and a second clamp mouth, the first clamp mouth is identical to the second clamp mouth and is symmetrically arranged and has a groove inside; The handle is fixedly sleeved on one end of the clamp tube, and the other end of the clamp tube is connected to the clamp head.

2. An automatic ligation forceps according to claim 1, characterized in that: A through hole is arranged in the middle of the rolling rod, and the diameter of the through hole is larger than the clip.

3. The automatic ligation forceps according to claim 1, characterized in that: The first jaw and the second jaw are symmetrically arranged on both sides of the first convex corner and the second convex corner respectively.

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