Laparoscopic minimally invasive surgery electrocoagulation forceps

Abstract

The present invention provides a laparoscopic minimally invasive surgery electrocoagulation forceps, wherein the end of the forceps rod is provided with two first electrode forceps heads and a second electrode forceps head that are clamped against each other, the tail of the forceps rod is provided with a movable forceps handle and a fixed forceps handle for adjusting the clamping of the first electrode forceps head and the second electrode forceps head, a fixing box is provided inside the first electrode forceps head or / and the second electrode forceps head, a water outlet is formed between the outer ring of the fixing box and the inner wall of the electrode forceps head, the water outlet is connected to the butt joint through an infusion tube, a top plate is provided inside the fixing box, a phase change material is provided between the top plate and the inside of the fixing box, and the phase change material expands when heated to lift up the top plate. By automatically increasing the clamping force, the need for the doctor to manually apply pressure is reduced. The doctor's hand fatigue during a long operation is reduced, and the safety and efficiency of the operation are improved. Automated clamping force control reduces the possibility of excessive force and reduces unnecessary damage to surrounding tissues.

Description

Technical Field

[0001] The invention relates to the field of electrocoagulation forceps, in particular to an electrocoagulation forceps for laparoscopic minimally invasive surgery. Background Art

[0002] In laparoscopic minimally invasive surgery, electrocoagulation forceps, as a commonly used instrument, plays an important role in clamping blood vessels to stop bleeding. However, in actual operation, due to the high temperature generated by electrocoagulation forceps during use, this may cause slight deformation of the end of the electrocoagulation forceps. This micro-deformation will affect the clamping effect of the electrocoagulation forceps, making it difficult for the electrocoagulation forceps to effectively clamp the blood vessels to stop bleeding.

[0003] To overcome this problem, surgeons often need to increase the pressure of their fingers to ensure that the electrocoagulation forceps can effectively clamp the blood vessels. However, applying high force for a long time will cause fatigue of the doctor's hand muscles, which will affect the duration and accuracy of the operation. In addition, excessive force may also increase the risk of tissue damage.

[0004] Therefore, how to reduce the micro-deformation of electrocoagulation forceps caused by high temperature and at the same time reduce the operating burden of doctors has become an important issue in improving the efficiency and safety of laparoscopic minimally invasive surgery. Summary of the invention

[0005] The main purpose of the present invention is to provide a laparoscopic minimally invasive surgery electrocoagulation forceps to solve the problem that micro-deformation will affect the clamping effect of the electrocoagulation forceps, making it difficult for the electrocoagulation forceps to effectively clamp the blood vessels to achieve hemostasis.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a laparoscopic minimally invasive surgical electrocoagulation forceps, the end of the forceps rod is provided with two clamping first electrode forceps heads and second electrode forceps heads, the tail of the forceps rod is provided with movable forceps handles and fixed forceps handles for adjusting the clamping of the first electrode forceps heads and the second electrode forceps heads, a fixing box is provided inside the first electrode forceps heads and / or the second electrode forceps heads, a water outlet groove is formed between the outer ring of the fixing box and the inner wall of the electrode forceps heads, the water outlet groove is connected to the docking head through an infusion tube, a top plate is provided inside the fixing box, a phase change material is provided between the top plate and the inside of the fixing box, and the phase change material expands when heated to lift up the top plate.

[0007] In the preferred embodiment, a sleeve is provided on the inner wall of the clamp rod, and threaded rings are provided at both ends of the sleeve. The threaded rings are threadedly connected to the inner wall of the clamp rod, a water channel is formed between the outer ring of the sleeve and the inner wall of the clamp rod, and the butt joint passes through the clamp rod through a pipeline and is connected to the water channel.

[0008] In the preferred embodiment, one end of the infusion tube passes through the clamp rod and is connected to the water channel, and the other end is connected to the water outlet groove inside the electrode clamp head.

[0009] In a preferred embodiment, a second limiting ring is provided on the outer ring of the upper opening of the fixing box, and a first limiting ring is provided on the outer ring of the lower surface of the top plate, and the first limiting ring is pressed against the upper limit of the second limiting ring.

[0010] In a preferred embodiment, a plurality of springs are provided between the second limiting ring and the first limiting ring.

[0011] In a preferred embodiment, the phase change material is filled with paraffin.

[0012] In the preferred embodiment, the first electrode clamp head and the second electrode clamp head are centrally rotationally symmetrically arranged, the middle of the turning arm at the tail of the first electrode clamp head and the second electrode clamp head is hinged to the end of the connecting head, and the end of the turning arm is hinged to the end of the pull rod through a rocker rod.

[0013] In a preferred embodiment, the tail end of the pull rod is hinged to the end of the movable pliers handle.

[0014] In the preferred embodiment, the butt joint is used to clamp cables and infusion tubes.

[0015] The present invention provides a laparoscopic minimally invasive surgery electrocoagulation forceps, when a first electrode forceps head and a second electrode forceps head clamp a blood vessel, a circuit formed by the two will generate high temperature. The high temperature heats the internal phase change material, causing it to expand and lift up a top plate. The lifting of the top plate increases the clamping force of the electrocoagulation forceps on the blood vessel, thereby improving the hemostasis effect.

[0016] After the operation is completed, the cooling liquid can be delivered to the inside of the water outlet tank through the infusion tube connected to the joint. The cooling liquid can quickly reduce the temperature of the surgical site and solidify the phase change material. After the phase change material solidifies, the top plate returns to its original position and the electrocoagulation forceps returns to its original state, which is convenient for subsequent operations.

[0017] By automatically increasing the clamping force, the doctor's need to manually apply pressure is reduced. The doctor's hand fatigue during long operations is reduced, and the safety and efficiency of the operation are improved. Automated clamping force control reduces the possibility of excessive force and reduces unnecessary damage to surrounding tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is the overall appearance structure diagram of the present invention;

[0020] Figure 2 It is a top view cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a cross-sectional structural diagram of the electrode clamp head of the present invention;

[0022] Figure 4 This is a cross-sectional structural diagram of the interior of the electrode clamp head of the present invention;

[0023] Figure 5 This is a diagram showing the installation structure of the first electrode clamp and the second electrode clamp of the present invention;

[0024] Figure 6 It is a front view cross-sectional structural diagram of the present invention.

[0025] In the figure: clamp rod 1; movable clamp handle 2; docking joint 3; fixed clamp handle 4; connecting head 5; first electrode clamp head 6; crank arm 601; swing rod 602; second electrode clamp head 7; water outlet trough 701; fixing box 702; phase change material 703; top plate 704; spring 705; first limiting ring 706; second limiting ring 707; infusion tube 8; sleeve 9; threaded ring 901; pull rod 10. DETAILED DESCRIPTION

[0026] like Figures 1 to 6 As shown, a laparoscopic minimally invasive surgery electrocoagulation forceps, the end of the forceps rod 1 is provided with two clamping first electrode forceps heads 6 and second electrode forceps heads 7, the tail of the forceps rod 1 is provided with a movable forceps handle 2 and a fixed forceps handle 4 for adjusting the clamping of the first electrode forceps heads 6 and the second electrode forceps heads 7, a fixing box 702 is provided inside the first electrode forceps heads 6 and / or the second electrode forceps heads 7, a water outlet trough 701 is formed between the outer ring of the fixing box 702 and the inner wall of the electrode forceps heads, the water outlet trough 701 is connected to the docking head 3 through an infusion tube 8, a top plate 704 is provided inside the fixing box 702, a phase change material 703 is provided between the top plate 704 and the inside of the fixing box 702, and the phase change material expands when heated to lift up the top plate 704.

[0027] When the first electrode clamp head 6 and the second electrode clamp head 7 clamp the blood vessel, the circuit formed by the two generates high temperature. The high temperature heats the internal phase change material 703, causing it to expand and push up the top plate 704. The lifting of the top plate 704 increases the clamping force of the electrocoagulation clamp on the blood vessel, thereby improving the hemostasis effect.

[0028] After the operation is completed, cooling liquid can be delivered to the inside of the water outlet tank 701 through the infusion tube 8 connected to the joint 3. The cooling liquid can quickly reduce the temperature of the surgical site and solidify the phase change material 703. After the phase change material 703 solidifies, the top plate 704 returns to its original position, and the electrocoagulation forceps returns to its original state, which is convenient for subsequent operations.

[0029] When the first electrode clamp head 6 and the second electrode clamp head 7 clamp the blood vessel, the circuit formed by the two generates high temperature. The high temperature heats the internal phase change material 703, causing it to expand and push up the top plate 704. The lifting of the top plate 704 increases the clamping force of the electrocoagulation clamp on the blood vessel, thereby improving the hemostasis effect.

[0030] Cooling recovery mechanism: After the operation is completed, cooling liquid can be delivered to the inside of the water outlet tank 701 through the infusion tube 8 connected to the joint 3. The cooling liquid can quickly reduce the temperature of the surgical site and solidify the phase change material 703. After the phase change material 703 solidifies, the top plate 704 returns to its original position, and the electrocoagulation forceps returns to its original state, which is convenient for subsequent operations.

[0031] Automatically increase the clamping force: The phase change material 703 expands when heated to lift the top plate 704, which automatically increases the clamping force of the electrocoagulation forceps and improves the hemostasis effect.

[0032] Rapid cooling and recovery: cooling liquid is delivered through the docking joint 3 and the infusion tube 8 to quickly cool the surgical site and the phase change material 703, so that the electrocoagulation forceps can be quickly restored to its original state, facilitating subsequent operations.

[0033] Reduce the burden on doctors: Automated clamping force control reduces the need for doctors to manually apply pressure, alleviating hand fatigue during long surgeries.

[0034] Reduced risk of tissue damage: Automated clamp force control reduces the possibility of excessive force, helping to reduce unnecessary damage to surrounding tissue.

[0035] In the preferred embodiment, the inner wall of the clamp rod 1 is sleeved with a sleeve 9, and both ends of the sleeve 9 are provided with threaded rings 901, which are threadedly connected to the inner wall of the clamp rod 1, and a water channel is formed between the outer ring of the sleeve 9 and the inner wall of the clamp rod 1, and the butt joint 3 is connected to the water channel through a pipeline passing through the clamp rod 1. The sleeve 9 is provided with threaded rings 901 at both ends, which is convenient for installation and disassembly, maintenance and replacement.

[0036] In the preferred embodiment, one end of the infusion tube 8 passes through the clamp rod 1 and is connected to the water channel, and the other end is connected to the water outlet groove 701 inside the electrode clamp head. One end of the infusion tube 8 passes through the clamp rod 1 and is connected to the water channel, and the other end is connected to the water outlet groove 701 inside the electrode clamp head. The cooling liquid is transported through the infusion tube 8 to quickly cool the surgical site and the phase change material 703, so that the electrocoagulation forceps can quickly return to its original state, which is convenient for subsequent operations.

[0037] In the preferred embodiment, the outer ring of the upper opening of the fixed box 702 is provided with a second limiting ring 707, and the outer ring of the lower surface of the top plate 704 is provided with a first limiting ring 706, and the first limiting ring 706 abuts against the upper limit of the second limiting ring 707. The first limiting ring 706 abuts against the upper limit of the second limiting ring 707 to ensure that the movement of the top plate 704 is within a safe range, and prevents damage to the electrocoagulation forceps head or other components due to excessive lifting. Through the limiting effect of the first limiting ring 706 and the second limiting ring 707, the clamping force of the electrocoagulation forceps is guaranteed to be stable and reliable, and the hemostatic effect is improved.

[0038] In the preferred embodiment, a plurality of springs 705 are provided between the second limiting ring 707 and the first limiting ring 706. The springs 705 are used for resetting. The springs 705 ensure that the top plate 704 can be quickly reset, which is convenient for subsequent operations. By providing the springs 705 to assist the resetting of the top plate 704, the practicality and convenience of operation of the electrocoagulation forceps are further improved.

[0039] In a preferred embodiment, the phase change material 703 is filled with paraffin. Paraffin, as the phase change material 703, has good thermal response characteristics, can expand and contract rapidly at an appropriate temperature, and achieve rapid pressurization and reset. The solidification point of paraffin is usually between 30°C and 50°C, and it begins to expand at a temperature between about 60°C and 90°C.

[0040] In the preferred embodiment, the first electrode clamp 6 and the second electrode clamp 7 are arranged symmetrically with respect to the center rotation, the middle of the turning arm 601 at the tail of the first electrode clamp 6 and the second electrode clamp 7 is hinged to the end of the connecting head 5, and the end of the turning arm 601 is hinged to the end of the pull rod 10 through the swing rod 602. Through the linkage mechanism of the pull rod 10, the swing rod 602 and the turning arm 601, the precise control of the first electrode clamp 6 and the second electrode clamp 7 is achieved. The operator can easily control the clamping and opening of the electrode clamp by pulling or releasing the pull rod 10, which reduces hand fatigue. The first electrode clamp 6 and the second electrode clamp 7 arranged symmetrically with respect to the center rotation ensure the balance and stability of the electrode clamp when clamping.

[0041] In the preferred embodiment, the rear end of the pull rod 10 is hinged to the end of the movable clamp handle 2. The movable clamp handle 2 controls the pull rod 10 to move and clamp the first electrode clamp head 6 and the second electrode clamp head 7.

[0042] In the preferred embodiment, the butt joint 3 is used to clamp the cable and the infusion tube. The butt joint 3 is connected to the cable and the infusion tube at the same time. The butt joint 3 integrates the functions of power transmission and liquid delivery, simplifies the device interface, and improves the convenience of surgical operation.

[0043] The docking connector 3 can be docked with the cable and the infusion tube at the same time, ensuring a smooth supply of electricity and cooling liquid and improving surgical efficiency.

[0044] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A laparoscopic minimally invasive surgery electrocoagulation forceps, characterized by: The end of the clamp rod (1) is provided with two first electrode clamp heads (6) and second electrode clamp heads (7) for clamping each other. The tail of the clamp rod (1) is provided with a movable clamp handle (2) and a fixed clamp handle (4) for adjusting the clamping of the first electrode clamp head (6) and the second electrode clamp head (7). A fixing box (702) is provided inside the first electrode clamp head (6) or / and the second electrode clamp head (7). A water outlet groove (701) is formed between the outer ring of the fixing box (702) and the inner wall of the electrode clamp head. The water outlet groove (701) is connected to the docking head (3) through an infusion tube (8). A top plate (704) is provided inside the fixing box (702). A phase change material (703) is provided between the top plate (704) and the inside of the fixing box (702). The phase change material expands when heated and lifts up the top plate (704). The inner wall of the clamp rod (1) is sleeved with a sleeve (9), and both ends of the sleeve (9) are provided with threaded rings (901), the threaded rings (901) are threadedly connected to the inner wall of the clamp rod (1), a water channel is formed between the outer ring of the sleeve (9) and the inner wall of the clamp rod (1), and the butt joint (3) passes through the clamp rod (1) through a pipeline and is connected to the water channel; One end of the infusion tube (8) passes through the clamp rod (1) and is connected to the water channel, and the other end is connected to the water outlet groove (701) inside the electrode clamp head.

2. According to claim 1, a laparoscopic minimally invasive surgery electrocoagulation forceps is characterized by: The outer ring of the upper opening of the fixed box (702) is provided with a second limiting ring (707), and the outer ring of the lower surface of the top plate (704) is provided with a first limiting ring (706), and the first limiting ring (706) abuts against the upper limit of the second limiting ring (707).

3. The laparoscopic minimally invasive surgery electrocoagulation forceps according to claim 2, characterized in that: A plurality of springs (705) are provided between the second limiting ring (707) and the first limiting ring (706).

4. The laparoscopic minimally invasive surgery electrocoagulation forceps according to claim 1, characterized in that: The phase change material (703) is filled with paraffin.

5. The laparoscopic minimally invasive surgery electrocoagulation forceps according to claim 1, characterized in that: The first electrode clamp head (6) and the second electrode clamp head (7) are arranged rotationally symmetrically at the center, the middle of the turning arm (601) at the tail of the first electrode clamp head (6) and the second electrode clamp head (7) is hinged to the end of the connecting head (5), and the end of the turning arm (601) is hinged to the end of the pull rod (10) through a swing rod (602).

6. The laparoscopic minimally invasive surgery electrocoagulation forceps according to claim 1, characterized in that: The rear end of the pull rod (10) is hinged to the end of the movable clamp handle (2).

7. The laparoscopic minimally invasive surgery electrocoagulation forceps according to claim 1, characterized in that: The butt joint (3) is used for clamping cables and infusion tubes.

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