Dripping bipolar coagulation forceps

Abstract

The present application belongs to the technical field of medical apparatus and instruments, and particularly relates to a dripping bipolar electrocoagulation forceps. The present application provides a dripping bipolar electrocoagulation forceps aiming at the problems of tissue carbonization, thermal injury expansion and poor hemostatic effect caused by overheating in the prior art, which comprises a dripping pipeline structure for cooling the forceps head and connected to the forceps head at one end, the dripping pipeline structure comprises a water inlet pipeline in a hose and a water outlet pipeline in a pull rod, the water inlet pipeline is connected to the water outlet pipeline through a waterway connecting mechanism, the pull rod penetrates through the waterway connecting mechanism and can rotate relative to the waterway connecting mechanism, and the end of the water outlet pipeline away from the water inlet pipeline is connected to the forceps head. The dripping pipeline structure of the present application extends to the position of the forceps head and can directly cool the heating part during the operation, so that the problems of tissue carbonization, thermal injury expansion and poor hemostatic effect caused by overheating during the operation can be avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of medical instrument accessories, and particularly relates to a water dripping bipolar electrocoagulation forceps water dripping pipeline structure. BACKGROUND

[0002] The bipolar electrocoagulation forceps is a key device for realizing precise hemostasis and tissue cutting in surgical operations. However, the traditional bipolar electrocoagulation forceps is prone to causing problems such as tissue carbonization, heat damage expansion and poor hemostasis effect due to overheating during operation.

[0003] Therefore, some bipolar electrocoagulation forceps are provided with a function structure for realizing the cooling of the forceps head by connecting with a physiological saline dripping pipe. For example, the utility model patent with the publication number CN204192737U discloses a bipolar electrocoagulation forceps, which comprises a forceps head, a forceps rod, a forceps handle, a high-frequency cable, the high-frequency cable is connected with a high-frequency generator, and a water delivery pipe is further arranged in the forceps rod. Water is dripped through a water dripping port, so that the forceps head can be cooled in time during electrocoagulation hemostasis. However, the pipeline joint is arranged on the forceps rod in this scheme, and the pipeline will be wound when the forceps rod rotates. Therefore, the forceps head cannot be rotated by 360 degrees.

[0004] For example, the utility model patent with the publication number CN215192164U discloses a bipolar electrocoagulation forceps, which comprises a main body, a water storage tank and a protection box. After the micro motor is started, water is squeezed from the water storage tank into the water dripping pipe, and finally dripped from the water dripping head. However, this scheme adopts an external pipeline design, which increases the complexity and volume of the instrument. In addition, the water dripping port is far away from the forceps head, and the cooling effect is limited. SUMMARY

[0005] The purpose of the present application is to provide a water dripping bipolar electrocoagulation forceps which can effectively prevent problems such as tissue carbonization, heat damage expansion and poor hemostasis effect caused by overheating during operation.

[0006] In order to achieve the above purpose, the application adopts the following technical scheme:

[0007] A water dripping bipolar electrocoagulation forceps comprises an outer shell body with an installation cavity, a handle rotatably connected to the outer shell body, a pull rod connected to the handle, the pull rod extending to the outside of the installation cavity and connected with a forceps head at the end away from the handle, and a circuit structure arranged in the installation cavity. The water dripping pipeline structure for cooling the forceps head and connected with the forceps head at one end is further arranged. The water dripping pipeline structure comprises a water inlet pipeline in a hose and a water outlet pipeline in the pull rod. The water inlet pipeline is connected with the water outlet pipeline through a water path connection mechanism. The pull rod penetrates through the water path connection mechanism and can rotate relative to the water path connection mechanism. The end of the water outlet pipeline away from the water inlet pipeline is connected with the forceps head.

[0008] In the drip water bipolar electrocoagulation forceps, the water connection mechanism comprises a connecting seat with a water passing cavity inside, the water inlet pipeline is connected with the water passing cavity, the connecting seat is provided with a through hole penetrating through the connecting seat, the pull rod penetrates through the through hole, the pull rod side wall is further provided with a water inlet, and the water passing cavity is connected with the water outlet pipeline through the water inlet.

[0009] In the drip water bipolar electrocoagulation forceps, the connecting seat is further provided with a conductive mounting groove for mounting the circuit structure, one end of the conductive mounting groove penetrates through the upper surface of the connecting seat, the other end penetrates through the side surface of the connecting seat, the bottom surface of the conductive mounting groove is provided with a clamping protrusion, a corresponding recess is arranged above the clamping protrusion, and the circuit structure is pressed on the clamping protrusion.

[0010] In the drip water bipolar electrocoagulation forceps, the circuit structure comprises a cable line connected with an external power supply, the cable line is electrically connected with the conductive spring sheet and the spring conductive sheet respectively, the spring conductive sheet is fixedly arranged in the mounting cavity, the spring conductive sheet is electrically connected with a conductive rod sleeved outside the pull rod, an insulating layer is arranged between the conductive rod and the pull rod, one end of the conductive rod is electrically connected with one of the clamping pieces of the forceps head, the conductive spring sheet is embedded in the conductive mounting groove, one end of the conductive spring sheet away from the cable line is pressed on the outer surface of the pull rod, and one end of the pull rod is electrically connected with the other clamping piece of the forceps head.

[0011] In the drip water bipolar electrocoagulation forceps, at least two sealing rings are further included, the side surface of the connecting seat is provided with a sealing recess recessed towards the inside of the connecting seat, the sealing ring is accommodated in the sealing recess and located between the pull rod and the connecting seat, and the water inlet is located between the two sealing rings.

[0012] In the drip water bipolar electrocoagulation forceps, a gasket is further pressed on the side surface of the sealing ring, the gasket is arranged in one-to-one correspondence with the sealing ring, a snap spring is further pressed on the surface of the gasket away from the sealing ring, the snap spring is arranged in one-to-one correspondence with the gasket, the surface of the pull rod is provided with a snap spring mounting groove, and the snap spring is embedded in the snap spring mounting groove.

[0013] In the drip water bipolar electrocoagulation forceps, the connecting seat is fixedly connected with the shell, the pull rod penetrates through the connecting seat through the through hole and is in sliding connection with the connecting seat, and in the sliding process of the pull rod, the water inlet is always located between the two sealing rings.

[0014] In the above-mentioned water dripping bipolar electrocoagulation forceps, at least one water dripping hole is further arranged on the forceps head, the water outlet pipeline is connected with the water dripping hole through a water dripping pipe, one end of the pull rod close to the forceps head is further provided with a pull rod connecting section, one end of the pull rod connecting section extends into the pull rod, one end of the water dripping pipe extends into the pull rod connecting section and is connected with the water outlet pipeline, and the outer wall of the water dripping pipe is sealingly connected with the inner wall of the pull rod connecting section.

[0015] In the above-mentioned water dripping bipolar electrocoagulation forceps, a driving cavity in the form of a cylinder is arranged in the handle, a driving shaft is movably arranged in the driving cavity, and one end of the driving shaft is detachably connected with the end of the pull rod away from the forceps head.

[0016] In the above-mentioned water dripping bipolar electrocoagulation forceps, the driving cavity is connected with a mounting channel, the mounting channel penetrates through the upper surface and the side surface of the handle, the end of the pull rod is provided with a plurality of parallel arranged bamboo joint shaped protrusions, the driving shaft is provided with a connecting cavity matched with the bamboo joint shaped protrusions, one end of the driving shaft is closed, and the other end is provided with an opening, the opening is connected with the connecting cavity.

[0017] Compared with the prior art, the water dripping bipolar electrocoagulation forceps has the following advantages:

[0018] 1. The water dripping pipeline structure of the present application extends to the position of the forceps head, so that the heated part in the operation process can be directly cooled, and the problems of tissue carbonization, heat damage expansion and poor hemostatic effect caused by overheating during operation can be avoided.

[0019] 2. The water outlet pipeline is arranged in the pull rod, and the water dripping hole is arranged at the position of the forceps head, so that the whole water dripping pipeline structure can be better integrated in the existing bipolar electrocoagulation forceps.

[0020] 3. The pull rod of the present application penetrates through the connecting seat through the through hole, so that the water passing cavity is in a state of surrounding the outer side of the pull rod, and the water inlet arranged on the side wall is connected with the water passing cavity, so that the communication with the water passing cavity can be ensured when the pull rod rotates during the operation, thereby expanding the application range.

[0021] 4. The application of the present application only needs to adaptively change the internal structure of the existing bipolar electrocoagulation forceps, without adjusting the overall structure and shape of the external structure, so that the modification cost is low, and the application is suitable for large-scale popularization and use.

[0022] 5、The pull rod and the driving shaft of the present application are detachably connected, which facilitates the assembly between the pull rod and the handle. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of the present application;

[0024] Figure 2 is a sectional view of the present application;

[0025] Figure 3 is a schematic view of the internal structure of part of the structure of the present application;

[0026] Figure 4 is a sectional view of part of the structure of the present application;

[0027] Figure 5 is Figure 4 an enlarged view of A in FIG. 1;

[0028] Figure 6 is Figure 2 an enlarged view of B in FIG. 1;

[0029] Figure 7 is a schematic view of the structure of the pliers head;

[0030] Figure 8 is a schematic view of part of the structure of the present application;

[0031] In the drawing: water inlet pipeline 1, water outlet pipeline 2, pull rod 3, outer shell 4, hose 5, conductive spring sheet 6, pliers head 7, flow controller 8, roller 9, installation cavity 10, handle 11, water dripping pipeline structure 12, circuit structure 13, cable 14, spring conductive sheet 15, conductive rod 16, insulating layer 17, driving cavity 18, driving shaft 19, installation channel 20, bamboo joint-like protrusion 21, connecting cavity 22, opening 23, water pipeline connecting mechanism 100, connecting seat 101, water passing cavity 102, through hole 103, water inlet 104, sealing ring 105, sealing groove 106, gasket 107, clamping spring 108, clamping spring installation groove 109, water inlet connector 110, conductive installation groove 111, clamping protrusion 112, accommodation groove 113, water dripping hole 201, water dripping pipe 202, pull rod connecting section 203, isolation seat 204, strip-shaped groove 205. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below in combination with the drawing and specific embodiments.

[0033] Example 1

[0034] The present embodiment provides a water dripping bipolar electrocoagulation forceps, which combines the advantages of the prior art and has the advantages of Figures 1-3As shown, it comprises an outer shell 4 with an installation cavity 10 inside, a handle 11 is rotatably connected to the outer shell 4, a pull rod 3 is further connected to the handle 11, the pull rod 3 extends to the outside of the installation cavity 10 and is connected with a pincer head 7 at the end away from the handle 11, a circuit structure 13 is arranged in the installation cavity 10, and it further comprises a water dripping pipeline structure 12 for cooling the pincer head 7 and connected with the pincer head 7 at one end, the water dripping pipeline structure 12 comprises a water inlet pipeline 1 in the hose 5 and a water outlet pipeline 2 in the pull rod 3, the water inlet pipeline 1 is connected with the water outlet pipeline 2 through a waterway connection mechanism 100, the pull rod 3 penetrates through the waterway connection mechanism 100 and can rotate relative to the waterway connection mechanism 100, and the end of the water outlet pipeline 2 away from the water inlet pipeline 1 is connected with the pincer head 7.

[0035] In use, an external power supply conducts current to the pincer head 7 through the circuit structure 13, so as to achieve hemostasis and tissue cutting during the operation process. The heat generated in this process is cooled by the cooling water that is conducted to the pincer head 7 through the water inlet pipeline 1, the waterway connection mechanism 100 and the water outlet pipeline 2 in turn. Therefore, the water dripping pipeline structure 12 arranged in the present application can directly cool the heating part during the operation process by extending to the position of the pincer head 7, which can avoid the problems of tissue carbonization, thermal injury expansion and poor hemostatic effect caused by overheating during the operation process. At the same time, since the pull rod 3 and the waterway connection mechanism 100 can rotate relative to each other, only the pull rod 3 rotates synchronously during the rotation of the pincer head 7, without driving the hose 5 and other structures to rotate synchronously, which avoids the problem of pipeline winding and limits the rotation of the pincer head 7.

[0036] In combination Figures 3-5 As shown, the waterway connection mechanism 100 comprises a connecting seat 101 with a water passing cavity 102 inside, the water inlet pipeline 1 is connected with the water passing cavity 102, the connecting seat 101 is provided with a through hole 103 penetrating through the connecting seat 101, the pull rod 3 penetrates through the through hole 103, the water outlet pipeline 2 is located in the pull rod 3, the side wall of the pull rod 3 is further provided with a water inlet 104, and the water passing cavity 102 is connected with the water outlet pipeline 2 through the water inlet 104.

[0037] During the operation process of the bipolar electrocoagulation forceps, the pull rod 3 needs to be rotated to drive the rotation of the pincer head, so as to achieve the operation of different parts of the patient. In use, water enters the water passing cavity 102 from the water inlet pipeline 1, then enters the water outlet pipeline 2 from the water passing cavity 102 through the water inlet 104, and finally is delivered to the part that needs to be cooled by the water outlet pipeline 2. The pull rod 3 of the present application penetrates through the connecting seat 101 through the through hole 103, so that the water passing cavity 102 is in a state of surrounding the outside of the pull rod 3, and is connected with the water passing cavity 102 through the water inlet 104 arranged on the side wall. Therefore, the connectivity with the water passing cavity 102 can be ensured when the pull rod 3 rotates during the operation process, thereby expanding the application range.

[0038] As shown in Figure 5 , further comprising at least two sealing rings 105, the connecting seat 101 is provided with a sealing groove 106 recessed towards the inside of the connecting seat 101, the sealing ring 105 is accommodated in the sealing groove 106 and located between the pull rod 3 and the connecting seat 101, and the water inlet 104 is located between the two sealing rings 105.

[0039] The water inlet 104 is arranged between the two sealing rings 105, which can ensure that the communication site of the water passing cavity 102 and the water inlet 104 is also located between the two sealing rings 105, thereby ensuring the overall sealing property and preventing water from overflowing.

[0040] As shown in Figure 3 and Figure 5 , further comprising a gasket 107 arranged on the side surface of the sealing ring 105, the gasket 107 is arranged one by one corresponding to the sealing ring 105, further comprising a snap spring 108 arranged on the side surface of the gasket 107 away from the sealing ring 105, the snap spring 108 is arranged one by one corresponding to the gasket 107, the surface of the pull rod 3 is provided with a snap spring mounting groove 109, and the snap spring 108 is embedded in the snap spring mounting groove 109.

[0041] During the operation process of the bipolar coagulation forceps, the pull rod 3 needs to be moved forward and backward to control the opening or closing of the forceps head, so as to complete the operation. When the above connection mode is adopted, the connecting seat 101 and the pull rod 3 can be fixedly connected in the axial direction, so that the connecting seat 101 can be synchronously moved forward and backward when the pull rod 3 is moved forward and backward.

[0042] Preferably, the axial center lines of the gasket 107, the sealing ring 105 and the pull rod 3 coincide with each other. In this way, the sealing effect and the reliability of the fixed connection between the connecting seat 101 and the pull rod 3 in the axial direction can be ensured.

[0043] As shown in Figure 5 , the water inlet pipe 1 is located in the hose 5, the lower surface of the connecting seat 101 extends a water inlet connector 110, and the water inlet connector 110 is sleeved in the hose 5 and communicates with the water inlet pipe 1. In this way, the reliability of the water inlet connection can be ensured.

[0044] As shown in Figure 3 , the connecting seat 101 is further provided with a conductive mounting groove 111 for mounting the conductive spring 6 in the circuit structure 13, one end of the conductive mounting groove 111 penetrates the upper surface of the connecting seat 101, and the other end penetrates the side surface of the connecting seat 101.

[0045] Preferably, the bottom surface of the conductive mounting groove 111 is provided with a clamping protrusion 112, a recess 113 corresponding to the clamping protrusion 112 is arranged above the clamping protrusion 112, and the conductive spring 6 is arranged on the clamping protrusion 112.

[0046] The conductive mounting groove 111 is arranged on the connecting seat 101, which can provide space for the installation of the conductive elastic sheet 6, so that the water system and the circuit system can be better combined in the electric coagulation forceps.

[0047] In combination with Figure 2 and Figure 3 As shown in the figure, the circuit structure 13 comprises a cable 14 connected with an external power supply, the cable 14 is electrically connected with the conductive elastic sheet 6 and the spring conductive sheet 15 respectively, the spring conductive sheet 15 is fixedly arranged in the mounting cavity 10, the spring conductive sheet 15 is electrically connected with a conductive rod 16 sleeved outside the pull rod 3, the conductive rod 16 is provided with an insulating layer 17 between the pull rod 3 and the conductive rod 16, and one end of the conductive rod 16 is electrically connected with one of the clamping pieces of the forceps head 7; the conductive elastic sheet 6 is embedded in the conductive mounting groove 111, and one end of the conductive elastic sheet 6 away from the cable 14 is pressed on the outer surface of the pull rod 3, and one end of the pull rod 3 is electrically connected with the other clamping piece of the forceps head 7.

[0048] The forceps head 7 comprises two oppositely arranged clamping pieces, two poles of the external power supply are connected with the spring conductive sheet 15 and the conductive elastic sheet 6 through the cable 14 respectively, one pole is conducted to one of the clamping pieces of the forceps head 7 through the spring conductive sheet 15 and the conductive rod 16, and the other pole is conducted to the other clamping piece of the forceps head 7 through the conductive elastic sheet 6 and the pull rod 3. During the operation, the two clamping pieces are used to clamp tissues or blood vessels, so that the operation effect is achieved.

[0049] In combination with Figure 2 and Figure 6 As shown in the figure, the water inlet pipeline 1 is arranged in the hose 5, and the water outlet pipeline 2 is arranged in the pull rod 3, the water inlet pipeline 1 is connected with the water outlet pipeline 2 through the waterway connecting mechanism 100, one end of the pull rod 3 penetrates through the waterway connecting mechanism 100, and the other end is connected with the forceps head 7, at least one water dripping hole 201 is arranged on the forceps head 7, and the water outlet pipeline 2 is connected with the water dripping hole 201 through a water dripping pipe 202.

[0050] In use, the hose 5 is connected with an external water source, and water is sequentially conveyed to the surface of the forceps head 7 through the water inlet pipeline 1, the waterway connecting mechanism 100, the water outlet pipeline 2, the water dripping pipe 202 and the water dripping hole 201, so that the forceps head 7 is cooled. Therefore, the existing structure of the bipolar electric coagulation forceps is fully utilized, the water outlet pipeline 2 is arranged in the pull rod 3, and the water dripping hole 201 is arranged at the position of the forceps head 7, so that the whole water dripping pipeline structure can be better integrated in the existing bipolar electric coagulation forceps.

[0051] In combination with Figure 6 and Figure 7As shown, one end of the water dropping hole 201 extends to the outer surface of the plier head 7, and the other end extends to the clamping surface of the plier head 7. In this way, the water for cooling can be delivered to the surface and clamping surface of the plier head 7, and multiple surfaces are cooled synchronously to improve the cooling effect.

[0052] As shown in the drawings, Figure 7 As shown, the pull rod 3 is provided with a pull rod connecting section 203 near one end of the plier head 7. One end of the pull rod connecting section 203 extends into the pull rod 3. One end of the water dropping pipe 202 extends into the pull rod connecting section 203 and communicates with the water outlet pipe 2. The outer wall of the water dropping pipe 202 is sealingly connected with the inner wall of the pull rod connecting section 203. The plier head 7 and the pull rod connecting section 203 are further provided with an isolation seat 204. The isolation seat 204 is rotationally connected with the pull rod connecting section 203. One end of the water dropping pipe 202, which is away from the pull rod connecting section 203, extends into the isolation seat 204 and communicates with the water dropping hole 201. The outer wall of the water dropping pipe 202 is sealingly connected with the inner wall of the isolation seat 204.

[0053] Preferably, the surface of the isolation seat 204 is provided with a strip-shaped groove 205 recessed into the interior of the isolation seat 204. The water dropping pipe 202 is made of elastic material and is embedded in the strip-shaped groove 205.

[0054] The embedding of the water dropping pipe 202 in the strip-shaped groove 205 can limit the position of the water dropping pipe 202, preventing the water dropping pipe 202 from being greatly deviated in position when the plier head 7 is rotated or opened and closed during the operation.

[0055] The water dropping pipe 202 is made of elastic material, which can be deformed as needed during use to adapt to the requirements of the use scenario. The two ends of the water dropping pipe 202 can be simply and conveniently bonded and sealed by glue.

[0056] As shown in the drawings, Figure 2 The soft tube 5 is further provided with a flow controller 8. The flow controller 8 is further rotationally connected with a control roller 9. The soft tube 5 penetrates through the flow controller 8, and the control roller 9 is pressed on the surface of the soft tube 5. Rolling the control roller 9 can press the soft tube 5 to control the opening size of the soft tube 5. The flow controller 8 can adopt the specific structure commonly used in the prior art. The rolling of the control roller 9 is used to control the size of the water dripping at the plier head 7.

[0057] As shown in the drawings, Figure 3 and Figure 8 The handle 11 has a driving cavity 18 in the form of a cylinder. A driving shaft 19 is movably arranged in the driving cavity 18. The driving shaft 19 is detachably connected with one end of the pull rod 3, which is away from the plier head 7.

[0058] Specifically, the driving cavity 18 is communicated with a mounting channel 20, the mounting channel 20 penetrates the upper surface and the side surface of the handle 11, the end of the pull rod 3 is provided with a plurality of parallel arranged bamboo joint shaped protrusions 21, the driving shaft 19 is internally provided with a connecting cavity 22 matched with the bamboo joint shaped protrusions 21, one end of the driving shaft 19 is closed, and the other end is provided with an opening 23 communicated with the connecting cavity 22.

[0059] The handle 11 is rotationally connected with the outer shell 4, when the handle 11 is rotated, the end portion of the driving shaft 19 mounted is moved forward or backward. Since the driving shaft 19 is movably arranged in the driving cavity 18, the driving shaft 19 only transmits the forward or backward movement to the pull rod 3, so that the pull rod 3 drives the clamp head 7 to realize the opening and closing of the clamp head 7. However, the prior art usually adopts a connecting mode that the pull rod 3 is provided with a spherical structure at the rear end, and the spherical structure is directly connected with the handle 11, which causes the inconvenience of assembly between the parts. The present application adds a driving shaft 19, and the bamboo joint shaped protrusions 21 of the pull rod 3 can be mounted into the connecting cavity 22 through the opening 23 during assembly. Therefore, the pull rod 3 and the driving shaft 19 of the present application adopt a detachable connection mode, which facilitates the assembly between the pull rod 3 and the handle 11.

[0060] Embodiment 2

[0061] The embodiment provides a dripping bipolar electrocoagulation forceps, and the specific structure is basically same as that in embodiment 1, and the difference only lies in the setting mode of the connecting seat 101. Specifically, the connecting seat 101 is fixedly connected with the outer shell 4, the pull rod 3 penetrates through the connecting seat 101 through a through hole 103 and is slidably connected with the connecting seat 101, and in the sliding process of the pull rod 3, the water inlet 104 is always located between the two sealing rings 105.

[0062] The scheme adopted in Embodiment 1 is to axially fixedly connect the connecting seat 101 with the pull rod 3, so that the connecting seat 101 moves synchronously during the forward and backward movement of the pull rod 3. However, this scheme inevitably causes many parts to move during the movement, for example, the hose 5, the conductive spring sheet 6, and the wire structure connected with the conductive spring sheet 6, and other parts move axially, so that the stability of the overall structure still needs to be further improved. Therefore, this embodiment improves the above-mentioned scheme, and the connecting seat 101 is fixedly arranged on the outer shell 4, so that the connecting seat 101 and other structures connected therewith can be kept fixed during the forward and backward sliding movement of the pull rod 3. The commonly used sealing element in the prior art, for example, the O-ring as the sealing ring 105, can also ensure sealing when the pull rod 3 and the connecting seat 101 slide relative to each other. However, the size of the connecting seat 101 in the axial direction of the pull rod 3 needs to be larger in the embodiment, so that the water passing cavity 102 can be arranged to be large enough, that is, there is a far enough distance between the two sealing rings 105, so that the water inlet 104 is always located between the two sealing rings 105 during the sliding movement of the pull rod 3, thereby avoiding the water leakage.

[0063] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0064] Although the terms water inlet pipeline 1, water outlet pipeline 2, pull rod 3, outer shell 4, hose 5, conductive spring sheet 6, plier head 7, flow controller 8, roller 9, mounting cavity 10, handle 11, drip pipeline structure 12, circuit structure 13, cable 14, spring conductive sheet 15, conductive rod 16, insulation layer 17, driving cavity 18, driving shaft 19, mounting channel 20, bamboo joint-like protrusion 21, connecting cavity 22, opening 23, waterway connecting mechanism 100, connecting seat 101, water passing cavity 102, through hole 103, water inlet 104, sealing ring 105, sealing groove 106, gasket 107, clamping spring 108, clamping spring mounting groove 109, water inlet connector 110, conductive mounting groove 111, clamping protrusion 112, accommodation groove 113, drip hole 201, drip pipe 202, pull rod connecting section 203, isolation seat 204, strip-shaped groove 205, and the like are used herein more frequently, but the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A dripping bipolar electrocoagulation forceps, comprising an outer housing (4) with an installation cavity (10) inside, a handle (11) rotatably connected to the outer housing (4), a pull rod (3) further connected to the handle (11), an end of the pull rod (3) extending to outside of the installation cavity (10) and connected with a forceps head (7), and a circuit structure (13) arranged in the installation cavity (10), further comprising a dripping pipeline structure (12) for cooling the forceps head (7) and having an end in communication with the forceps head (7), characterized in that: The water dripping pipeline structure (12) comprises a water inlet pipeline (1) in the hose (5) and a water outlet pipeline (2) in the pull rod (3), the water inlet pipeline (1) is connected with the water outlet pipeline (2) through a waterway connecting mechanism (100), the pull rod (3) penetrates through the waterway connecting mechanism (100) and can rotate relative to the waterway connecting mechanism (100), and one end of the water outlet pipeline (2) away from the water inlet pipeline (1) is connected with the plier head (7). ​ The waterway connecting mechanism (100) comprises a connecting seat (101) with a water passing cavity (102) in the interior, the water inlet pipeline (1) is connected with the water passing cavity (102), a through hole (103) penetrating through the connecting seat (101) is arranged on the connecting seat (101), the pull rod (3) penetrates through the through hole (103), a water inlet (104) is further arranged on the side wall of the pull rod (3), and the water passing cavity (102) is connected with the water outlet pipeline (2) through the water inlet (104). At least two sealing rings (105) are further arranged, a sealing groove (106) recessed to the interior of the connecting seat (101) is arranged on the side of the connecting seat (101), the sealing ring (105) is accommodated in the sealing groove (106) and located between the pull rod (3) and the connecting seat (101), and the water inlet (104) is located between the two sealing rings (105). The connecting seat (101) is fixedly connected with the outer shell (4), the pull rod (3) penetrates through the connecting seat (101) through the through hole (103) and is slidably connected with the connecting seat (101), and the water inlet (104) is always located between the two sealing rings (105) in the sliding process of the pull rod (3).

2. The drop-water bipolar coagulating forceps according to claim 1, wherein: A conductive mounting groove (111) for mounting the circuit structure (13) is further arranged on the connecting seat (101), one end of the conductive mounting groove (111) penetrates through the upper surface of the connecting seat (101), the other end penetrates through the side of the connecting seat (101), the bottom surface of the conductive mounting groove (111) is provided with a clamping protrusion (112), a recess (113) corresponding to the clamping protrusion (112) is arranged above the clamping protrusion (112), and the circuit structure (13) is pressed on the clamping protrusion (112).

3. The drop-water bipolar coagulating forceps according to claim 2, wherein: The circuit structure (13) comprises a cable (14) connected with an external power supply, the ends of the cable (14) are electrically connected with a conductive spring piece (6) and a spring conductive piece (15) respectively, the spring conductive piece (15) is fixedly arranged in the mounting cavity (10), the spring conductive piece (15) is electrically connected with a conductive rod (16) sleeved outside the pull rod (3), an insulating layer (17) is arranged between the conductive rod (16) and the pull rod (3), one end of the conductive rod (16) is electrically connected with one of the clamping pieces of the plier head (7), the conductive spring piece (6) is embedded in the conductive mounting groove (111), one end of the conductive spring piece (6) away from the cable (14) is pressed on the outer surface of the pull rod (3), and one end of the pull rod (3) is electrically connected with the other clamping piece of the plier head (7).

4. The drop-water bipolar coagulating forceps according to claim 1, wherein: The tongs head (7) is further provided with at least one water dripping hole (201), the water outlet pipeline (2) is communicated with the water dripping hole (201) through a water dripping pipe (202), one end of the pull rod (3) close to the tongs head (7) is further provided with a pull rod connecting section (203), one end of the pull rod connecting section (203) extends into the pull rod (3), one end of the water dripping pipe (202) extends into the pull rod connecting section (203) and is communicated with the water outlet pipeline (2), the outer wall of the water dripping pipe (202) is sealingly connected with the inner wall of the pull rod connecting section (203); the tongs head (7) and the pull rod connecting section (203) are further provided with an isolation seat (204), the isolation seat (204) is rotationally connected with the pull rod connecting section (203), one end of the water dripping pipe (202) away from the pull rod connecting section (203) extends into the isolation seat (204) and is communicated with the water dripping hole (201), the outer wall of the water dripping pipe (202) is sealingly connected with the inner wall of the isolation seat (204).

5. The drop-water bipolar coagulating forceps according to claim 1, wherein: The handle (11) is provided with a driving cavity (18) in a cylindrical shape, a driving shaft (19) is movably arranged in the driving cavity (18), and one end of the driving shaft (19) is detachably connected with the pull rod (3) away from the tongs head (7).

6. The drop-water bipolar coagulating forceps according to claim 5, wherein: The driving cavity (18) is communicated with a mounting channel (20), the mounting channel (20) penetrates through the upper surface and the side surface of the handle (11), the pull rod (3) is provided with a plurality of parallel arranged bamboo joint shaped protrusions (21) at the end portion, the driving shaft (19) is provided with a connecting cavity (22) matched with the bamboo joint shaped protrusions (21) in the driving shaft (19), one end of the driving shaft (19) is closed, the other end is provided with an opening (23), and the opening (23) is communicated with the connecting cavity (22).

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