Laparoscope electric hook forceps

Abstract

The utility model provides a laparoscope electric hook clamp which solves the problems of electric hook mode switching and the like and comprises an operating handle and a sleeve connected with the operating handle, the operating handle is rotationally connected with a movable handle, a traction assembly is connected among the movable handle, the operating handle and the sleeve, a multifunctional clamp assembly linked with the traction assembly is installed at the end of the sleeve, and the multifunctional clamp assembly is connected with the movable handle. A bipolar electrocoagulation assembly is installed between the operation handle and the multifunctional clamp assembly. The utility model has the advantages of stable structure, wide applicability and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of laparoscopic surgical equipment, and in particular relates to a laparoscopic electric hook forceps. Background Art

[0002] With the continuous advancement of medical technology, laparoscopic surgery has become an important means of treating intrauterine diseases and abnormal uterine bleeding in recent years, and has become more popular in clinical applications. Existing laparoscopic electrocoagulation instruments mainly include monopolar, bipolar and intelligent bipolar. They are all based on high-frequency electricity, and high-frequency electricity is generated by a high-frequency current generator to complete various operations such as laparoscopic electrocoagulation, hemostasis, electroresection, and separation. However, in actual use, existing electrocoagulation instruments often need to replace the structure of their clamps to meet the needs of electrocoagulation, separation and other surgeries.

[0003] In order to solve the deficiencies in the prior art, people have conducted long-term explorations and proposed a variety of solutions. For example, a Chinese patent document discloses a cuttable bipolar electrocoagulation forceps for laparoscopic surgery [202211339829.5], which includes a handle and a forceps head, and the handle is provided with a fixed tube, one end of the fixed tube is rotatably arranged in the handle, and the other end passes through the handle to connect the forceps head, and the forceps head includes a first forceps head and a second forceps head, and a forceps head opening and closing mechanism and a blade pushing mechanism are provided on the fixed tube. The present invention controls the opening and closing of the first forceps head and the second forceps head by the forceps head opening and closing mechanism to clamp the tissue for electrocoagulation, and controls the extension and retraction of the blade assembly by the blade pushing mechanism to cut the electrocoagulated tissue.

[0004] The above solution solves the problem of electrocoagulation tissue cutting to a certain extent, but the solution still has many shortcomings, such as the inability to quickly complete the rapid switching of electrocoagulation, separation, and clamping functions. Summary of the invention

[0005] The utility model aims to solve the above problems and provide a laparoscopic electric hook forceps which has a reasonable design and can realize rapid switching between electric coagulation and separation functions.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a laparoscopic electric hook forceps, including an operating handle and a sleeve connected to the operating handle, the operating handle is rotatably connected to a movable handle, a traction assembly is connected between the movable handle, the operating handle and the sleeve, a multifunctional clamp assembly linked to the traction assembly is installed at the end of the sleeve, and a bipolar electrocoagulation assembly is installed between the operating handle and the multifunctional clamp assembly.

[0007] In the above-mentioned laparoscopic electric hook forceps, the pulling assembly includes a pulling rod slidably installed in the operating handle and the sleeve and extending axially, and the end of the pulling rod opposite to the movable handle is provided with a movable ball head movably connected to the movable handle, and the movable handle is provided with a movable groove for the movable ball head to be inserted into; an elastic reset part is installed between the movable handle and the operating handle, the operating handle is equipped with a guide strip, and the movable handle is provided with a guide groove for the guide strip to be inserted, and the guide strip and the guide groove guide the movable handle to swing relative to the operating handle.

[0008] In the above-mentioned laparoscopic electric hook forceps, the multifunctional clamp assembly includes a limit sleeve installed at the end of the sleeve, a limit column extending radially is fixed in the front end port of the limit sleeve, a pair of clamping blocks hinged to the traction assembly are movably installed in the limit sleeve, the clamping block has a hinge part with a hinge hole and rotatably connected to the traction assembly, the hinge part is connected to a limit part with an inclined limit groove, the limit column is inserted in the limit groove, the limit part is connected to the clamp part, and a stopper is provided at the junction of the limit part and the clamp part.

[0009] In the above-mentioned laparoscopic electric hook forceps, the clamping part includes a rear clamping body and a front clamping body bent relative to the rear clamping body into a hook shape, the width of the rear clamping body is smaller than the width of the front clamping body, and the clamping part has locking teeth distributed on the opposite side.

[0010] In the above-mentioned laparoscopic electric hook forceps, the bipolar coagulation assembly includes a bipolar coagulation plug fixedly mounted on the operating handle, the bipolar coagulation plug is connected to a conductive block via an elastic reset member, the conductive block slides and retracts relative to the operating handle and contacts the pulling assembly with pressure.

[0011] In the above-mentioned laparoscopic electric hook forceps, a locking button is movably installed on the operating handle, the locking button is connected to a locking block slidably inserted in the operating handle, the locking block has a locking hole for the pulling component to pass through, an elastic reset part is installed between the locking block and the operating handle, and a locking step surface is provided on the outside of the pulling component to press against the locking hole end.

[0012] In the above-mentioned laparoscopic electric hook forceps, a flushing port communicating with each other is opened between the operating handle and the sleeve, a sealing nozzle is fixed at the flushing port, and the sealing nozzle is connected to a sealing cover for sealing the sealing nozzle.

[0013] In the above-mentioned laparoscopic electric hook forceps, the operating handle includes a main handle body, the front end of the main handle body is connected to a rotating sleeve through a first adapter component, and the front end of the rotating sleeve is connected to an insulating tube through a second adapter component.

[0014] In the above-mentioned laparoscopic electric hook forceps, the first adapter assembly includes a first adapter tube installed in the main handle body through a threaded member, the second adapter tube is spirally connected to the inner side of the first adapter tube, the second adapter tube has a clamping hole opposite to the port of the first adapter tube, a clamping ball is connected in the clamping hole through an elastic reset member, the clamping ball is engaged with the clamping groove at the end of the first adapter tube, and the second adapter tube is threadedly connected to the rotating sleeve.

[0015] In the above-mentioned laparoscopic electric hook forceps, the second adapter assembly includes a third adapter tube installed inside the main handle body and the rotating sleeve and slidably connected to the pulling assembly, the sleeve is inserted into the insulating tube and pressed against the inner side of the third adapter tube, the third adapter tube is threadedly connected to the sleeve and the insulating tube, a sealing ring is pressed and fixed between the end of the sleeve and the inner side of the third adapter tube, and a sealing ring is pressed and fixed at the junction of the rotating sleeve and the insulating tube.

[0016] Compared with the existing technology, the advantages of the utility model are: the multifunctional clamp assembly can be used for clamping, and can be combined and switched to the electric hook state at the same time, and cooperate with the bipolar electrocoagulation assembly to realize the electric hook separation and the switching of the electrocoagulation hemostasis function; the operating handle as a whole can be quickly disassembled and separated, so as to facilitate the maintenance of the electric hook forceps; a flushing port is opened on the operating handle, which can be connected to an external pipeline for flushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural sectional view of the utility model;

[0018] Figure 2 It is a partial cross-sectional view of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the multifunctional clamp assembly of the utility model;

[0020] Figure 4 This is another structural schematic diagram of the multifunctional clamp assembly of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the clamping block of the utility model;

[0022] Figure 6 It is another structural schematic diagram of the clamping block of the utility model;

[0023] In the figure, an operating handle 1, a main handle body 11, a rotating sleeve 12, an insulating tube 13, a first adapter tube 14, a second adapter tube 15, a snap-in hole 16, a snap-in ball 17, a snap-in groove 18, a sleeve 2, a movable handle 3, a pulling assembly 4, a pulling rod 41, a movable ball head 42, a movable groove 43, a guide bar 44, a guide groove 45, a multifunctional clamp assembly 5, a limiting sleeve 51, a limiting column 52, a clamping block 53, a hinge hole 54, a hinge part 55, a limiting groove 56, a limiting part 57, a clamping part 58, a rear clamp body 581, a front clamp body 582, a locking tooth 583, a stopper 59, a bipolar electrocoagulation assembly 6, a bipolar electrocoagulation plug 61, a conductive block 62, a locking button 7, a locking block 71, a locking hole 72, a locking step surface 73, a flushing port 8, a sealing nozzle 81, a sealing cover 82, a third adapter tube 9, and a sealing ring 91. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] like Figure 1-6 As shown, a laparoscopic electric hook forceps includes an operating handle 1 and a sleeve 2 connected to the operating handle 1, the operating handle 1 is rotatably connected to a movable handle 3, a pulling assembly 4 is connected between the movable handle 3, the operating handle 1 and the sleeve 2, the movable handle 3 and the operating handle 1 are opened and closed to apply a push-pull torque to the pulling assembly 4; the end of the sleeve 2 is installed with a multifunctional clamp assembly 5 linked to the pulling assembly 4, as the pulling assembly 4 is extended and retracted, the multifunctional clamp assembly 5 is also opened and closed to meet the clamping requirements. A bipolar electrocoagulation assembly 6 is installed between the operating handle 1 and the multifunctional clamp assembly 5, the bipolar electrocoagulation assembly 6 is electrically conductive with the pulling assembly 4 and the multifunctional clamp assembly 5, and acts as an electric hook to separate tissues when the multifunctional clamp assembly 5 is combined, and the multifunctional clamp assembly 5 can also unfold the jaws on the bleeding wound to achieve the effect of bipolar electrocoagulation.

[0026] Specifically, in order to retain the flexibility of pulling movement, the pulling assembly 4 includes a pulling rod 41 slidably installed in the operating handle 1 and the sleeve 2 and extending in the axial direction. The end of the pulling rod 41 opposite to the movable handle 3 is provided with a movable ball head 42 movably connected to the movable handle 3, and the movable handle 3 is provided with a movable groove 43 for the movable ball head 42 to be inserted into; an elastic reset member of a torsion spring structure is installed between the movable handle 3 and the operating handle 1, the operating handle 1 is equipped with a guide bar 44, and the movable handle 3 is provided with a guide groove 45 for the guide bar 44 to be inserted into, and the guide bar 44 and the guide groove 45 guide the movable handle 3 to swing relative to the operating handle 1. The cross-sections of the guide bar 44 and the guide groove 45 are arc-shaped to limit the rotation trajectory of the movable handle 3.

[0027] In depth, the multifunctional clamp assembly 5 includes a limit sleeve 51 installed at the end of the sleeve 2, and the limit sleeve 51 allows the pulling assembly 4 to extend and slide. A limit column 52 extending in the radial direction is fixed in the front end of the limit sleeve 51, and a pair of clamps 53 hinged to the pulling assembly 4 are movably installed in the limit sleeve 51. The clamp 53 has a hinge portion 55 with a hinge hole 54 and rotatably connected to the pulling assembly 4. The hinge portion 55 is connected to a limit portion 57 with an inclined limit groove 56. The limit column 52 is inserted into the limit groove 56, and the limit portion 57 is connected to a clamp portion 58. A stopper 59 is provided at the intersection of the limit portion 57 and the clamp portion 58. As the pulling assembly 4 extends and retracts, the clamp 53 also moves axially, and the limit grooves 56 of the clamps 53 arranged in pairs cross each other. Since the limit column 52 is in the cross position and remains fixed, the clamp portion 58 at the front end of the clamp 53 opens and closes accordingly.

[0028] Furthermore, unlike the existing clamp structure, the clamp part 58 in the present application includes a rear clamp body 581 and a front clamp body 582 bent relative to the rear clamp body 581 in a hook shape. The width of the rear clamp body 581 is smaller than that of the rear clamp body 581, and the clamp part 58 has teeth 583 on the opposite side. The front clamp body 582 is relatively slender and can be used as an electric hook to separate tissues. The front clamp body 582 is relatively thick and is not easy to accidentally injure human tissues. When the front clamp body 582 is slightly opened, it provides high-frequency electrical energy to the tissue after being energized, so that the blood vessels are dehydrated and coagulated to achieve hemostasis.

[0029] Furthermore, similar to conventional conductive structures, the bipolar electrocoagulation assembly 6 includes a bipolar electrocoagulation plug 61 fixedly mounted on the operating handle 1, but the bipolar electrocoagulation plug 61 is connected to a conductive block 62 via an elastic reset member, and the conductive block 62 slides and retracts relative to the operating handle 1 and contacts the pulling assembly 4 with a top pressure. The pulling assembly 4 is always in contact with the conductive block 62 during the process of retracting and sliding, thereby ensuring the stability of the conductive state.

[0030] In addition, in order to ensure that the multifunctional clamp assembly 5 can be completely closed to form an electric hook, a locking button 7 is movably installed on the operating handle 1, and the locking button 7 is connected to a locking block 71 that is slidably inserted in the operating handle 1. The locking block 71 has a locking hole 72 for the pulling assembly 4 to pass through. An elastic reset member is installed between the locking block 71 and the operating handle 1, and a locking step surface 73 that presses against the end of the locking hole 72 is provided on the outside of the pulling assembly 4. Pressing the locking button 7 causes the locking block 71 and its locking hole 72 to drop, and the locking step surface 73 separates from the locking block 71, allowing the pulling assembly 4 to slide relative to the locking hole 72.

[0031] At the same time, during the operation, it is often necessary to flush the tissue. In the present application, a flushing port 8 is provided between the operating handle 1 and the sleeve 2. A sealing nozzle 81 is fixed at the flushing port 8. The sealing nozzle 81 is connected to a sealing cover 82 for sealing the sealing nozzle 81. The locking hole 72 is opened to connect an external pipeline, so that the flushing function can be integrated.

[0032] It can be seen that the operating handle 1 is generally made of stainless steel or plastic, and includes a main handle body 11 with a grip structure, a rotating sleeve 12 is connected to the front end of the main handle body 11 through a first adapter component, and an insulating tube 13 is connected to the front end of the rotating sleeve 12 through a second adapter component. After use, the main handle body 11, the rotating sleeve 12 and the insulating tube 13 can be rotated and separated, and the modular structure is convenient for daily maintenance and replacement.

[0033] Obviously, the first adapter assembly adopts a threaded connection method, which includes a first adapter tube 14 installed in the main handle body 11 through a threaded member, a second adapter tube 15 is spirally connected to the inner side of the first adapter tube 14, the second adapter tube 15 has a clamping hole 16 opposite to the end of the first adapter tube 14, a clamping ball 17 is connected in the clamping hole 16 through an elastic reset member, the clamping ball 17 is engaged with the clamping groove 18 at the end of the first adapter tube 14, and the second adapter tube 15 is threadedly connected to the rotating sleeve 12. When the rotating sleeve 12 rotates to the specified position, the clamping ball 17 is embedded in the clamping groove 18 to provide resistance, and the operator can judge that the rotating sleeve 12 has been installed in place.

[0034] Preferably, the second adapter assembly mainly ensures the internal sealing of the sleeve 2 and prevents liquid from invading the rest of the operating handle 1 in the flushing state. It includes a third adapter tube 9 installed inside the main handle body 11 and the rotating sleeve 12 and slidably connected to the pulling assembly 4. The sleeve 2 is inserted into the insulating tube 13 and pressed against the inner side of the third adapter tube 9. The third adapter tube 9 is threadedly connected to the sleeve 2 and the insulating tube 13. A sealing ring 91 is pressed and fixed between the end of the sleeve 2 and the inner side of the third adapter tube 9. A sealing ring 91 is pressed and fixed at the intersection of the rotating sleeve 12 and the insulating tube 13. After the installation of the sleeve 2 is completed, the sealing ring 91 is subjected to a certain pre-tightening force to ensure its sealing effect with the corresponding sealing groove.

[0035] To sum up, the principle of this embodiment is that the bipolar electrocoagulation component 6 supplies power to the multifunctional clamp component 5. As the pulling component 4 moves, the multifunctional clamp component 5 opens and closes, and its clamp part 58 can form an electric hook to meet the tissue separation requirements, or maintain an open state to achieve electrocoagulation hemostasis, or open and close to achieve the clamping function.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although the present invention makes more use of the operating handle 1, the main handle body 11, the rotating sleeve 12, the insulating tube 13, the first adapter tube 14, the second adapter tube 15, the clamping hole 16, the clamping ball 17, the clamping groove 18, the sleeve 2, the movable handle 3, the pulling assembly 4, the pulling rod 41, the movable ball head 42, the movable groove 43, the guide bar 44, the guide groove 45, the multifunctional clamp assembly 5, the limiting sleeve 51, the limiting column 52, the clamp block 53, the hinge hole 54, the hinge The terms such as the connection part 55, the limiting groove 56, the limiting part 57, the clamping part 58, the rear clamping body 581, the front clamping body 582, the latching teeth 583, the stopper 59, the bipolar electrocoagulation assembly 6, the bipolar electrocoagulation plug 61, the conductive block 62, the locking button 7, the locking block 71, the locking hole 72, the locking step surface 73, the flushing port 8, the sealing nozzle 81, the sealing cover 82, the third adapter tube 9, the sealing ring 91, etc., but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A laparoscopic electric hook forceps, comprising an operating handle (1) and a sleeve (2) connected to the operating handle (1), wherein the operating handle (1) is rotatably connected to a movable handle (3), and a pulling assembly (4) is connected between the movable handle (3), the operating handle (1) and the sleeve (2), characterized in that: The end of the sleeve (2) is equipped with a multifunctional clamp assembly (5) linked to the pulling assembly (4), and a bipolar electrocoagulation assembly (6) is installed between the operating handle (1) and the multifunctional clamp assembly (5).

2. The laparoscopic electric hook forceps according to claim 1, characterized in that: The pulling assembly (4) comprises a pulling rod (41) which is slidably mounted in the operating handle (1) and the sleeve (2) and extends axially; the pulling rod (41) is provided with a movable ball head (42) movably connected to the movable handle (3) at one end opposite to the movable handle (3); the movable handle (3) is provided with a movable groove (43) for the movable ball head (42) to be inserted into; an elastic reset member is installed between the movable handle (3) and the operating handle (1); the operating handle (1) is provided with a guide bar (44); the movable handle (3) is provided with a guide groove (45) for the guide bar (44) to be inserted into; the guide bar (44) and the guide groove (45) guide the movable handle (3) to swing relative to the operating handle (1).

3. The laparoscopic electric hook forceps according to claim 1, characterized in that: The multifunctional clamp assembly (5) comprises a limit sleeve (51) installed at the end of the sleeve (2), a limit column (52) extending radially is fixed in the front end port of the limit sleeve (51), a pair of clamping blocks (53) hinged to the pulling assembly (4) are movably installed in the limit sleeve (51), the clamping block (53) has a hinged portion (55) with a hinge hole (54) and rotatably connected to the pulling assembly (4), the hinged portion (55) is connected to a limit portion (57) with an inclined limit groove (56), the limit column (52) is inserted in the limit groove (56), the limit portion (57) is connected to a clamping portion (58), and a stopper (59) is provided at the junction of the limit portion (57) and the clamping portion (58).

4. The laparoscopic electric hook forceps according to claim 3, characterized in that: The clamping part (58) comprises a rear clamping body (581) and a front clamping body (582) bent relative to the rear clamping body (581) into a hook shape, the width of the rear clamping body (581) is smaller than the width of the front clamping body (581), and the clamping teeth (583) are distributed on the opposite side of the clamping part (58).

5. The laparoscopic electric hook forceps according to claim 1, characterized in that: The bipolar electrocoagulation assembly (6) comprises a bipolar electrocoagulation plug (61) fixedly mounted on the operating handle (1); the bipolar electrocoagulation plug (61) is connected to a conductive block (62) via an elastic reset member; the conductive block (62) slides and retracts relative to the operating handle (1) and is in top-pressing contact with the pulling assembly (4).

6. The laparoscopic electric hook forceps according to claim 1, characterized in that: A locking button (7) is movably mounted on the operating handle (1); the locking button (7) is connected to a locking block (71) slidably inserted into the operating handle (1); the locking block (71) is provided with a locking hole (72) for the pulling assembly (4) to pass through; an elastic reset member is installed between the locking block (71) and the operating handle (1); and a locking step surface (73) is provided on the outer side of the pulling assembly (4) to press against the end of the locking hole (72).

7. The laparoscopic electric hook forceps according to claim 1, characterized in that: A flushing port (8) communicating with each other is provided between the operating handle (1) and the sleeve (2). A sealing nozzle (81) is fixed to the flushing port (8), and the sealing nozzle (81) is connected to a sealing cover (82) for sealing the sealing nozzle (81).

8. The laparoscopic electric hook forceps according to claim 1, characterized in that: The operating handle (1) comprises a main handle body (11), the front end of the main handle body (11) is connected to a rotating sleeve (12) via a first adapter component, and the front end of the rotating sleeve (12) is connected to an insulating tube (13) via a second adapter component.

9. The laparoscopic electric hook forceps according to claim 8, characterized in that: The first adapter assembly includes a first adapter tube (14) installed in the main handle body (11) through a threaded member, the inner side of the first adapter tube (14) is spirally connected to the second adapter tube (15), the second adapter tube (15) is provided with a clamping hole (16) opposite to the end of the first adapter tube (14), a clamping ball (17) is connected in the clamping hole (16) through an elastic reset member, the clamping ball (17) is engaged with the clamping groove (18) at the end of the first adapter tube (14), and the second adapter tube (15) is threadedly connected to the rotating sleeve (12).

10. The laparoscopic electric hook forceps according to claim 8, characterized in that: The second adapter assembly comprises a third adapter tube (9) installed inside the main handle body (11) and the rotating sleeve (12) and slidably connected to the pulling assembly (4); the sleeve (2) is inserted into the insulating tube (13) and pressed against the inner side of the third adapter tube (9); the third adapter tube (9) is threadedly connected to the sleeve (2) and the insulating tube (13); a sealing ring (91) is pressed and fixed between the end of the sleeve (2) and the inner side of the third adapter tube (9); and a sealing ring (91) is pressed and fixed at the junction of the rotating sleeve (12) and the insulating tube (13).

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