Bipolar electrocoagulation forceps with suction function

Abstract

The bipolar electrocoagulation forceps with the suction function comprise a handle, a forceps holder, a sleeve assembly and a suction tube, the tube wall, making contact with the forceps holder, of the end of the suction tube protrudes upwards to form a first surface, and the inner surface of the forceps holder is provided with a second surface matched with the first surface; a plurality of first bulges are arranged on the first surface, a plurality of second bulges are arranged on the second surface, and the plurality of first bulges and the plurality of second bulges form a press fit structure. According to the scheme, the bipolar electrocoagulation forceps integrate the function of sucking air and liquid to be discharged, a doctor can conveniently complete clamping, blood coagulation and suction operations on tissues with one hand in an operation, the surface area and friction force between the forceps and the clamped tissues are increased due to the design of the jaws, and a better blood coagulation effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a bipolar electrocoagulation forceps with a suction function. Background Art

[0002] During thoracoscopic or laparoscopic minimally invasive surgery, tissue bleeding, fluid accumulation, and smoke generated by electrocautery at the patient's affected area need to be cleaned up promptly, otherwise it will affect the surgical field of view, making it inconvenient for the doctor to observe the affected area, and will also interfere with the doctor's operation and affect the normal progress of the laparoscopic surgery.

[0003] During laparoscopic surgery, an aspirator is used to clean bleeding and waste fluid in the surgical area. In single-port laparoscopic surgery, the incision space is small, and the use of an aspirator to assist is likely to interfere with the operation of the scalpel, especially for surgical instruments with electrocoagulation function. At present, the operating doctor often uses one hand to clean the waste fluid with an aspirator, and the other hand to dissect the tissue structure with a scalpel. In some delicate dissections, clamps are also needed to peel off the tissue. Replacing or adding surgical instruments will affect the smooth progress of the operation. Utility Model Content

[0004] The utility model aims to provide a bipolar electrocoagulation forceps with a suction function to solve the problem of inconvenience in replacing or adding surgical instruments in existing laparoscopic surgery.

[0005] The utility model provides a bipolar electrocoagulation forceps with an aspiration function, comprising a handle, a clamp, a sleeve assembly and a suction tube, wherein the sleeve assembly is a hollow structure, comprising an outer sleeve and an inner sleeve, the distal end of the sleeve assembly is hinged with the clamp, and the proximal end is connected with the handle, the inner sleeve and the outer sleeve generate relative movement under the action of an external force to cause the clamp to generate an opening and closing action; the proximal end of the suction tube is connected with the handle, and after passing through the interior of the sleeve assembly, an end portion is extended at the distal end to form a jaw with the clamp; the end portion of the suction tube contacts the tube wall of the clamp and bulges upward to form a first surface, and the inner surface of the clamp has a second surface adapted to the first surface; a plurality of first protrusions are provided on the first surface, and a plurality of second protrusions are provided on the second surface, and a plurality of the first protrusions and a plurality of the second protrusions form a pressed structure; a cable extends from the tail of the handle, and a wire connected to a working current is arranged in the cable, so that the suction tube and the clamp are respectively connected to two electrodes of the working current and discharge at the jaws, and a hose connecting the suction tube and an external suction device is also arranged in the cable.

[0006] The solution of the utility model integrates the function of attracting gas and liquid to be discharged in the bipolar electrocoagulation forceps, which is convenient for doctors to complete the clamping of tissues, coagulation, and cleaning of waste liquids and waste gases with one hand during surgery. The first surface that bulges upward is designed at the jaws so that the cross section of the end of the suction tube forms a "water drop" shape, and the corresponding inner surface of the clamp is arched to adapt to it. This structure can increase the surface area between the clamped tissue when the jaws are closed. The bite structure formed by the protrusions set on the first surface and the second surface can not only increase the friction between the clamped tissue and the clamped tissue, but also make the clamped tissue be pressed together to obtain a better coagulation effect. When in use, the doctor can hold the handle of the electrocoagulation forceps with one hand and squeeze the actuating part on the handle to complete the stripping, clamping and coagulation of the anatomical tissue. Under the negative pressure of the external suction device, the bleeding, waste liquid and smoke in the operating area can also be cleaned, making it convenient for the doctor to perform fine dissection with his other hand, improving the efficiency of the operation and avoiding the adverse effects caused by inserting multiple instruments in a small space. There is no need to increase the number of openings in the patient's body, which is beneficial to the patient's physical recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Other features, objectives and advantages of the present invention will become more apparent through the following detailed description of non-limiting embodiments in conjunction with the accompanying drawings.

[0008] Figure 1 A schematic diagram of the structure of a bipolar electrocoagulation forceps with an aspiration function is provided for one embodiment of the utility model;

[0009] Figure 2 A schematic structural diagram of the clamping part of a bipolar electrocoagulation forceps with suction function provided by an embodiment of the utility model;

[0010] Figure 3 is a schematic diagram of a jaw structure in an embodiment of the present disclosure;

[0011] Figure 4 It is a schematic diagram of the engagement of the protrusions of the clamp and the suction tube in the embodiment of the present disclosure;

[0012] Figure 5 A schematic diagram of the usage status of the electrocoagulation forceps provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0013] Hereinafter, exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, parts not related to the description of the exemplary embodiments are omitted in the accompanying drawings.

[0014] In this specification, it should be understood that terms such as "including" or "having" are intended to indicate the presence of features, numbers, steps, behaviors, components, parts or a combination thereof disclosed in this specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, behaviors, components, parts or a combination thereof exist or are added.

[0015] It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments in this specification can be combined with each other. The directions referred to in this specification are all based on the handle as a reference point, and the "distal" end or "front" end represents the direction away from the handle, and the "proximal" end or "rear" end represents the direction close to the handle. The following will be described in detail with reference to the drawings and in combination with the embodiments.

[0016] Figure 1 A schematic structural diagram of a bipolar electrocoagulation forceps with a suction function is provided for one embodiment of the utility model. Figure 2 A schematic structural diagram of the clamping portion of a bipolar electrocoagulation forceps with suction function provided in one embodiment of the utility model.

[0017] like Figure 1 , 2 As shown, the bipolar electrocoagulation forceps provided in this embodiment include a handle 100, a sleeve assembly 300, a clamp 400 and a suction tube 500. The sleeve assembly 300 is a hollow structure, including an outer sleeve and an inner sleeve. The distal end of the sleeve assembly 300 is hinged with the clamp 400, and the proximal end is connected to the handle 100. The relative movement of the inner sleeve and the outer sleeve under the action of an external force causes the clamp 400 to open and close. The proximal end of the suction tube 500 is connected to the handle 100, and after passing through the interior of the sleeve assembly 300, an end 510 is extended at the distal end to form a jaw with the clamp 400; the end 510 of the suction tube contacts the tube wall of the clamp 400 and bulges upward to form a first surface 511, and the inner surface of the clamp 400 has a second surface 411 adapted to the first surface 511. A plurality of first protrusions 512 are provided on the first surface 511, and a plurality of second protrusions 412 are provided on the second surface 411, and the plurality of first protrusions 512 and the plurality of second protrusions 412 form a pressed structure. The pressed structure can be a bite structure formed by the positions of the first protrusions 512 and the second protrusions 412 being staggered with each other, or a nested structure formed by the first protrusions 512 and the second protrusions 412 being at the same position but having matching shapes. The first surface 511 bulges upward and presents a "water drop" shape in cross section.

[0018] A cable 600 extends from the tail of the handle 100, and the cable 600 contains a main cable connected to the working current so that the suction tube 500 and the clamp 400 are respectively connected to the two electrodes of the working current to discharge at the jaws. The cable 600 also contains a suction pipeline connecting the suction tube 500 and an external suction device.

[0019] An actuating component 200 is also provided on the front side of the handle 100. The actuating component 200 is linked with the sleeve assembly 300. When the actuating component 200 is pressurized, the inner sleeve and the outer sleeve of the sleeve assembly 300 are moved to drive the jaws to open and close, thereby clamping the biological tissue.

[0020] The handle 100 is also provided with an energy excitation button 700, which is pressed to excite the electrode energy applied to the jaws. When the host is powered on, the excitation button 700 on the handle can excite the electrode energy, discharge at the jaws to perform a coagulation operation on the clamped biological tissue.

[0021] The gripping and pressing parts of the handle 100 and the actuating component 200 can be made of engineering plastics. The clamp 400 is a conductor, and the suction tube 500 and the sleeve assembly are both conductors, and are connected to the working current from the handle. An insulating layer is provided on the outer surface of the suction tube 500 located inside the sleeve to maintain insulation from the sleeve assembly, and the outer surface of the suction tube end 510 is a discharge area to form a double electrode with the clamp 400. An insulating layer is also provided on the inner wall surface of the suction tube 500 to prevent interference with the liquid in the tube. The sleeve assembly 300 and the suction tube 500 can be wear-resistant, high-hardness, high-strength alloy materials, such as tungsten steel, aluminum-titanium alloy, etc.

[0022] The outer surface of the sleeve assembly 300 may also be wrapped with an insulating sleeve 800, so as to achieve insulation of the outer surface of the sleeve assembly at a low cost and avoid misoperation. The insulating sleeve 800 may be made of silicone or PVC.

[0023] Furthermore, a plurality of openings 513 are provided on the tube wall of the suction tube end 510. When the suction tube end 510 encounters liquid or gas, these openings 513 serve as inlets for gas and liquid, and can accelerate the suction and discharge speed.

[0024] The cable 600 at the rear of the handle 100 can rotate freely in the tangential direction to prevent the connection with the host device from being entangled or knotted.

[0025] The jaws of the bipolar electrocoagulation forceps provided in the present disclosure may have a variety of implementation schemes.

[0026] In one embodiment, a plurality of first protrusions are equally spaced along the axial direction of the first surface. The first protrusions may be strip-shaped protrusions extending tangentially on the first surface, or small granular protrusions of columnar protrusions or conical protrusions. The height of the first protrusions is about 0.8 mm, which can achieve a balance between friction and clamping force.

[0027] The plurality of second protrusions can be divided into two groups, each group being equally spaced along the axial direction of the second surface, forming a groove body at the axial position of the second surface. This structure of two groups of protrusions can better complete the extrusion operation, which is conducive to the electrocoagulation of the clamped biological tissue. The shape of the second protrusion can correspond to the first protrusion, that is, each second protrusion has a slot for the insertion of a strip-shaped protrusion, a columnar protrusion or a conical protrusion, and the depth of the slot is about 0.7 mm.

[0028] Preferably, the first protrusion is a strip-shaped protrusion, the second protrusion is a strip-shaped protrusion, and the positions of the first protrusion and the second protrusion are staggered. Such staggered protrusions are not only simple in structure and convenient for process implementation, but also can form a tight pressing relationship when the jaws are closed, which is convenient for clamping biological tissues.

[0029] Below through Figures 3-4 An implementation structure of the above-mentioned jaw structure is described.

[0030] Figure 3 is a schematic diagram of the jaw structure in an embodiment of the present disclosure, Figure 4 It is a schematic diagram of the engagement of the protrusions of the clamp and the suction tube in the embodiment of the present disclosure.

[0031] like Figure 3 As shown, in the area above the suction tube end 510 that contacts the clamp 400, a plurality of strip-shaped convex teeth 512 are evenly spaced in the axial direction, and the convex teeth 512 are 0.8 mm high and 1 mm apart. There are two rows of strip-shaped convex teeth 412 on the inner surface of the clamp 400, which are evenly spaced along the inner surface of the clamp 400 and symmetrically distributed with the center line of the clamp 400 as the axis. When the jaws are closed, the convex teeth 412 on the clamp 400 and the convex teeth 512 on the suction tube end are staggered and interlocked with each other. This interlocking relationship is shown in FIG. Figure 4 shown.

[0032] In other embodiments, the above Figure 2 The first protrusions and the second protrusions in the clamp are exchanged with each other, that is, the multiple first protrusions at the end of the suction tube are divided into two groups, each group is evenly spaced along the axial direction of the first surface, forming two rows of protrusion structures. At this time, the corresponding second protrusions on the inner surface of the clamp can be a single row of protrusion structures or a two-row protrusion structure.

[0033] In other embodiments, the first protrusion is a stripe protrusion extending axially on the first surface and distributed in the tangential direction, or a stripe protrusion extending tangentially on the first surface and distributed in the axial direction, and these stripes are evenly distributed and have a low height of 0.1 to 0.2 mm, and the corresponding second protrusion is also a similar stripe protrusion. In this embodiment, the stripes designed at the jaws increase the friction between the clamped tissue and the clamped tissue, which is conducive to the implementation of the electrocoagulation hemostasis operation.

[0034] The solution of the utility model integrates the function of attracting gas and liquid to be discharged in the bipolar electrocoagulation forceps, which is convenient for doctors to complete the clamping of tissues, coagulation, and cleaning of waste liquids and waste gases with one hand during surgery. The first surface that bulges upward is designed at the jaws so that the cross section of the end of the suction tube forms a "water drop" shape, and the corresponding inner surface of the clamp is arched to adapt to it. This structure can increase the surface area between the clamped tissue when the jaws are closed. The bite structure formed by the protrusions set on the first surface and the second surface can not only increase the friction between the clamped tissue and the clamped tissue, but also make the clamped tissue be pressed together to obtain a better coagulation effect.

[0035] Figure 5 A schematic diagram of the usage status of the electrocoagulation forceps provided in an embodiment of the present disclosure.

[0036] like Figure 5 As shown, the cable 600 extends from the tail of the handle for a section and is divided into two branches, each of which is provided with an interface, namely, a cable branch connected to the host and a suction line branch connected to the aspirator. When in use, the aforementioned bipolar coagulation forceps are connected to the host device 900 through the host cable of the cable 600 at the tail of the handle. The bipolar coagulation forceps obtain electrode energy from the host device 900, and connect the suction line with the suction device of the peripheral device, thereby realizing the suction function. When working, the doctor can hold the handle of the coagulation forceps with one hand, squeeze and apply force to the actuating component to complete the clamping and coagulation of the anatomical tissue, and then cooperate with the suction operation of the suction tube to complete the cleaning of waste liquid and gas smoke with one hand, so as to facilitate the doctor to perform fine dissection with the other hand, improve the efficiency of the operation, and avoid the adverse effects caused by inserting multiple instruments in a small space. There is no need to increase the number of openings in the patient's body, which is beneficial to the patient's physical recovery.

[0037] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in this specification.

Claims

1. A bipolar electrocoagulation forceps with suction function, comprising: A handle, a clamp, a sleeve assembly and a suction tube, wherein the sleeve assembly is a hollow structure, including an outer sleeve and an inner sleeve, the distal end of the sleeve assembly is hinged to the clamp, and the proximal end is connected to the handle, and the relative movement of the inner sleeve and the outer sleeve under the action of an external force causes the clamp to open and close; the proximal end of the suction tube is connected to the handle, and after passing through the interior of the sleeve assembly, an end portion is extended at the distal end to form a jaw with the clamp; it is characterized in that The end of the suction tube contacts the tube wall of the clamp and bulges upward to form a first surface, and the inner surface of the clamp has a second surface adapted to the first surface; a plurality of first protrusions are provided on the first surface, and a plurality of second protrusions are provided on the second surface, and the plurality of first protrusions and the plurality of second protrusions form a pressed structure; A cable extends from the tail of the handle, and the cable contains a main cable connected to the working current so that the suction tube and the clamp are respectively connected to the two electrodes of the working current to discharge at the jaws. The cable also contains a suction pipeline connecting the suction tube and an external suction device.

2. The bipolar electrocoagulation forceps according to claim 1, characterized in that: The plurality of first protrusions are distributed axially at equal intervals along the first surface; the plurality of second protrusions are divided into two groups, and each group is distributed axially at equal intervals along the second surface.

3. The bipolar electrocoagulation forceps according to claim 1, characterized in that: The outer surface of the outer sleeve is covered with an insulating sleeve.

4. The bipolar electrocoagulation forceps according to claim 1, characterized in that: The plurality of first protrusions are divided into two groups, and each group is equally spaced along the axial direction of the first surface.

5. The bipolar electrocoagulation forceps according to claim 1, characterized in that: The first protrusion is a strip-shaped protruding tooth, the second protrusion is a strip-shaped protruding tooth, and the positions of the first protrusion and the second protrusion are staggered with each other.

6. The bipolar electrocoagulation forceps according to claim 1, characterized in that: The first protrusions are stripe protrusions extending axially along the first surface and distributed in the tangential direction, or stripe protrusions extending tangentially on the first surface and distributed in the axial direction.

7. The bipolar electrocoagulation forceps according to claim 1, characterized in that: A plurality of openings are arranged on the side wall of the end portion of the suction tube.

8. The bipolar electrocoagulation forceps according to claim 1, characterized in that: An actuating component is arranged on the front side of the handle, and the actuating component is linked with the sleeve assembly. When the actuating component is pressed, the inner sleeve and the outer sleeve of the sleeve assembly are caused to move relative to each other, thereby driving the jaws to open and close.

9. The bipolar electrocoagulation forceps according to claim 1, characterized in that: The clamp, the suction tube and the inner sleeve are all conductors, and an insulating layer is provided on the outer surface of the suction tube located inside the inner sleeve.

10. The bipolar electrocoagulation forceps according to claim 1, characterized in that: An energy excitation button is provided on the handle, and the energy excitation button is pressed to excite the electrode energy applied to the jaws.

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