Bipolar hemostatic surgical instrument

Abstract

The embodiment of the utility model provides a bipolar hemostatic surgical instrument, which relates to the field of medical equipment and comprises a handle, an outer sheath, two electrodes and two temperature sensors. And a smoke outlet is formed in the handle. The outer sheath is provided with a pipe cavity and a smoke suction port, the outer sheath is connected with the handle, and the smoke exhaust port and the smoke suction port are communicated with the pipe cavity. The two electrodes are arranged in a tube cavity of the outer sheath in a penetrating manner, are arranged at an interval and are connected with the handle; the two temperature sensors are connected with the two electrodes respectively and used for obtaining the temperature of the corresponding electrodes. Due to the design of the surgical instrument, interference of smoke on surgery in the surgery process can be reduced, the surgery difficulty is reduced, and the surgery success rate is increased; the temperature of the blood coagulation surface can be controlled, the uniformity of the blood coagulation depth is improved, and the hemostasis effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and more specifically, to a bipolar hemostatic surgical instrument. Background Technology

[0002] In clinical surgeries such as liver resection, postoperative hemostasis is crucial. Current standard bipolar instruments generate significant amounts of fumes when performing coagulation procedures on the resected liver surface. This obscures the entire surgical field, severely interfering with the surgeon's work. Furthermore, the temperature of the coagulated area on the liver resection surface is difficult to control, and the coagulation depth is uneven, which can easily lead to poor hemostasis and even serious damage to surrounding tissues. Utility Model Content

[0003] The objectives of this invention include, for example, providing a bipolar hemostatic surgical instrument that can reduce the interference of smoke during surgery, reduce the difficulty of surgery, and improve the success rate of surgery; and can control the temperature of the coagulation surface, improve the uniformity of coagulation depth, and improve the hemostatic effect.

[0004] The embodiments of this utility model can be implemented as follows:

[0005] In a first aspect, this utility model provides a bipolar hemostasis surgical instrument, comprising:

[0006] The device comprises a handle, an outer sheath, two electrodes, and two temperature sensors. The handle has a smoke exhaust port. The outer sheath has a cavity and a smoke inlet, and is connected to the handle. Both the smoke exhaust port and the smoke inlet are connected to the cavity. The two electrodes are inserted into the cavity of the outer sheath and spaced apart, and are both connected to the handle. The two temperature sensors are connected to the two electrodes respectively to obtain the temperature of the corresponding electrodes.

[0007] In an optional embodiment, the outer sheath includes a tube body and a sealing head, the smoking port is disposed on the tube wall of the tube body, the proximal end of the tube body is connected to the handle; the sealing head is installed at the distal end of the tube body to close the distal port of the tube body; both electrodes penetrate the sealing head.

[0008] In an optional embodiment, the sealing head is provided with two independent positioning holes, and the two electrodes are respectively inserted into the two positioning holes, with each electrode sealingly engaged with the hole wall of the positioning hole.

[0009] In an optional embodiment, the sealing head includes a first column and a second column connected together, the outer diameter of the first column being smaller than the outer diameter of the second column, so as to form an annular abutment surface on the end face of the second column that connects to the first column; the first column is inserted into the distal end of the pipe body, the annular abutment surface contacts the distal end face of the pipe body, and the outer peripheral surface of the second column is smoothly connected to the outer peripheral surface of the pipe body.

[0010] In an optional embodiment, the electrode is provided with a hollow channel, and the temperature sensor and the wires connected to the temperature sensor are housed within the hollow channel.

[0011] In an optional embodiment, the handle is provided with a liquid injection hole; the electrode is provided with a water inlet and outlet hole, the water inlet and outlet hole being connected to the hollow channel, and the hollow channel being connected to the liquid injection hole.

[0012] In an optional embodiment, the handle is provided with an assembly hole, a smoking chamber, and a smoking channel. The assembly hole communicates with the smoking chamber, and the diameter of the smoking chamber is larger than the diameter of the assembly hole. The outer sheath passes through the assembly hole and the smoking chamber, and both the outer sheath and the smoking channel communicate with the smoking chamber. The exhaust port communicates with the smoking channel.

[0013] In an optional embodiment, the outer sheath and the wall of the smoking chamber cooperate to define an annular smoking chamber, and the tube wall of the outer sheath is provided with a through hole communicating with the annular smoking chamber.

[0014] In an optional embodiment, the number of through holes is multiple and they are arranged at intervals around the outer sheath.

[0015] In an optional embodiment, the bipolar hemostasis surgical instrument further includes a first electrical plug and a second electrical plug, wherein the first electrical plug is electrically connected to the two electrodes and the second electrical plug is electrically connected to the two temperature sensors.

[0016] The beneficial effects of this utility model embodiment include, for example:

[0017] In summary, the bipolar hemostatic surgical instrument provided in this embodiment features a fume extraction port on the outer sheath, which connects to an exhaust port on the handle via the lumen of the outer sheath. During surgery, when the electrodes act on the tissue for coagulation, a large amount of smoke is generated and enters the lumen through the fume extraction port, then exits through the exhaust port. This timely and effective removal of smoke from the surgical area reduces interference with the surgical field, lowers the difficulty of the surgery, and increases the success rate. Furthermore, each electrode is equipped with a temperature sensor that monitors its temperature. Based on the temperature feedback from the temperature sensor, the instrument adjusts the real-time temperature of the electrode to ensure a suitable temperature, minimizing the risk of poor coagulation and tissue damage due to uneven heating. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a bipolar hemostatic surgical instrument according to an embodiment of this application;

[0020] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0021] Figure 3 This is a cross-sectional schematic diagram of the bipolar hemostatic surgical instrument according to an embodiment of this application;

[0022] Figure 4 This is a partial schematic diagram of the handle in an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the outer sheath according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the sealing head according to an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the electrodes and temperature sensor according to an embodiment of this application.

[0026] icon:

[0027] 100-Handle; 101-Exhaust port; 102-Annular smoking chamber; 110-Holding body; 111-Assembly hole; 112-Smoking chamber; 113-Smoking channel; 120-Positioning component; 130-Sealing component; 140-Smoking tube; 150-Injection tube; 200-Outer sheath; 201-Lumen; 202-Smoking port; 203-Through hole; 210-Tube body; 220-Sealing head; 221-First column; 222-Second column; 223-Positioning hole; 300-Electrode; 301-Hollow channel; 302-Inlet / outlet water hole; 400-Temperature sensor; 500-First electrical plug; 600-Second electrical plug; 700-Wire. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0034] In current techniques, postoperative hemostasis is crucial during liver resection surgery. Conventional bipolar instruments generate significant amounts of fumes when performing coagulation procedures on the resected liver surface. These fumes obscure the surgical field, severely interfering with the surgeon's work and increasing surgical risks. Furthermore, the real-time temperature of the electrodes cannot be obtained during the procedure, making temperature control of the coagulated area on the liver resection surface difficult and resulting in uneven coagulation depth. This can easily lead to poor hemostasis and even serious damage to surrounding tissues.

[0035] In view of this, the designers have provided a bipolar hemostatic surgical instrument that can promptly remove the fumes generated during the operation and also acquire the temperature of electrode 300 in real time, so that the temperature of electrode 300 is moderate and the coagulation effect is improved.

[0036] Please combine Figures 1-7 In this embodiment, the bipolar hemostasis surgical instrument includes a handle 100, an outer sheath 200, two electrodes 300, and two temperature sensors 400. The handle 100 has a smoke vent 101. The outer sheath 200 has a lumen 201 and a smoke inlet 202, and is connected to the handle 100. Both the smoke vent 101 and the smoke inlet 202 are connected to the lumen 201. The two electrodes 300 are inserted into the lumen 201 of the outer sheath 200 and are spaced apart. Both electrodes 300 are connected to the handle 100. The two temperature sensors 400 are connected to the two electrodes 300 respectively to obtain the temperature of the corresponding electrodes 300.

[0037] As described above, the working principle of the bipolar hemostatic surgical instrument provided in this embodiment is as follows:

[0038] During the procedure, two electrodes 300 contact the site of hemostasis. Upon application of electricity, the electrodes 300 induce clotting at the bleeding site, thus achieving hemostasis. Simultaneously, two temperature sensors 400 are energized to monitor the temperature of the electrodes 300 in real time. The temperature of the electrodes 300 is adjusted based on the sensor readings to ensure optimal temperature distribution, improve heating uniformity, and enhance clotting effectiveness. During the clotting procedure, fumes generated in the surrounding area enter the fume extraction port 202, pass through the lumen 201, and are exhausted from the exhaust port 101. Timely fumes removal minimizes obstruction of the surgical field, reducing surgical difficulty and increasing the success rate.

[0039] The following embodiments illustrate the details of the bipolar hemostatic surgical instrument of this application by way of example.

[0040] Please combine Figure 1 and Figure 4In this embodiment, optionally, the handle 100 includes a gripping body 110, a positioning member 120, a sealing member 130, a smoking tube 140, and a liquid injection tube 150. The gripping body 110 is provided with an assembly hole 111, a smoking chamber 112, a smoking channel 113, and a smoke exhaust port 101. One end of the assembly hole 111 is located on the distal end face of the gripping body 110, and the other end of the assembly hole 111 communicates with the smoking chamber 112. The end of the smoking chamber 112 away from the assembly hole 111 is located on the proximal end face of the gripping body 110, and the diameter of the smoking chamber 112 is larger than the diameter of the assembly hole 111. One end of the smoking channel 113 communicates with the smoking chamber 112, and the other end is located on the proximal end face of the gripping body 110. The smoke exhaust port 101 communicates with the smoking channel 113, and can also be understood as the port of the smoking channel 113 located on the proximal end face of the gripping body 110. The smoking pipe 140 can be a corrugated pipe, which is inserted into the exhaust port 101. The smoking pipe 140 can be connected to a negative pressure pump to adjust the suction power of the exhaust, making it flexible in use. The positioning member 120 and the sealing member 130 are both assembled into the smoking chamber 112. The positioning member 120 and the end of the smoking chamber 112 connected to the mounting hole 111 are spaced apart. The sealing member 130 and the positioning member 120 are spaced apart. The positioning member 120 is located on the far end side of the sealing member 130 near the grip body 110. In addition, the positioning member 120 is located on the proximal end side of the port of the smoking channel 113 connected to the smoking chamber 112 near the grip body 110. In this way, the smoke in the smoking chamber 112 can enter the smoking channel 113, but is blocked by the positioning member 120 and the sealing member 130, making it difficult for it to leak out from the port of the smoking chamber 112 located on the proximal end face of the grip body 110. The positioning element 120 serves not only to seal the smoking chamber 112, but also to position the outer sheath 200 and the electrode 300. The injection tube 150 passes through the sealing element 130, with its proximal end extending out for connection to the injection device. The proximal end of the injection tube 150 can also be referred to as the injection port.

[0041] To facilitate gripping the handle 100, anti-slip textures can be provided on the outer periphery of the grip body 110.

[0042] Please combine Figure 1 , Figures 5-6In this embodiment, optionally, the outer sheath 200 includes a connected tube body 210 and a sealing head 220. The tube body 210 is provided with a smoke inlet 202 and a through hole 203. Both the smoke inlet 202 and the through hole 203 are located on the tube wall of the tube body 210 and communicate with the tube cavity 201 of the tube body 210. There can be multiple smoke inlets 202, which are arranged at intervals around the axis of the tube body 210. There can also be multiple through holes 203, which are arranged at intervals around the axis of the tube body 210. All through holes 203 are located near the proximal end of the multiple smoke inlets 202, that is, near the distal end of the tube body 210, and near the precise end of the tube body 210. The proximal end of the tube body 210 is connected to the handle 100. Specifically, the proximal end of the tube body 210 is inserted into the mounting hole 111, passes through the smoking chamber 112, and engages with the positioning member 120. The tube wall of the tube body 210 is sealed against the mounting hole 111, and the tube wall of the tube body 210 is also sealed against the positioning member 120. In this way, the outer tube wall of the tube body 210, the enclosure of the smoking chamber 112, and the end face of the positioning member 120 define an annular smoking chamber 102 surrounding the tube body 210. Because the tube body 210 is in sealed contact with both the hole wall of the mounting hole 111 and the positioning member 120, the annular smoking chamber 102 has good sealing performance. Furthermore, multiple through holes 203 all connect to the annular smoking chamber 102, and the smoking channel 113 also connects to the annular smoking chamber 102. During the operation, the smoke entering the lumen 201 through the smoke inlet 202 is discharged through the through hole 203 into the annular smoke chamber 102, and then discharged through the smoke passage 113. The annular smoke chamber 102 has a large space, and the smoke from multiple through holes 203 can enter the annular smoke chamber 102, resulting in better smoke extraction.

[0043] Meanwhile, the plug head 220 is installed at the distal end of the tube body 210 to seal the distal port of the tube body 210. Multiple smoke ports 202 are located on the proximal side of the plug head 220 near the tube body 210, and the plug head 220 will not affect the smoke-smoking effect of the smoke ports 202. Both electrodes 300 penetrate the plug head 220.

[0044] Please combine Figure 6Optionally, the sealing head 220 includes a first column 221 and a second column 222 connected together. Both the first column 221 and the second column 222 can be cylinders and are coaxially arranged. The outer diameter of the first column 221 is smaller than the outer diameter of the second column 222, so as to form an annular contact surface on the end face of the second column 222 connecting to the first column 221. The first column 221 is inserted into the distal end of the tube body 210, and the annular contact surface contacts the distal end face of the tube body 210. The outer circumferential surface of the second column 222 is smoothly connected to the outer circumferential surface of the tube body 210. That is, the outer circumferential surface of the second column 222 and the outer circumferential surface of the tube body 210 have the same diameter. The connection position between the sealing head 220 and the tube body 210 does not form a step, making it less likely to interfere with tissue. Furthermore, by inserting the first column 221 into the tube body 210, the contact area between the two can be increased, improving stability.

[0045] Optionally, the sealing head 220 is provided with two independent positioning holes 223, both of which simultaneously penetrate the first column 221 and the second column 222. Two electrodes 300 are respectively inserted into the two positioning holes 223, and each electrode 300 is sealed to the wall of the positioning hole 223. The two electrodes 300 are positioned by the two positioning holes 223, ensuring stable and reliable positioning of the electrodes 300 and facilitating assembly.

[0046] Please combine Figure 1 and Figure 7 In this embodiment, optionally, each electrode 300 is configured as a hollow structure, that is, the electrode 300 is provided with a hollow channel 301 for liquid flow, and the electrode 300 is also provided with inlet and outlet water holes 302 communicating with the hollow channel 301. There can be multiple inlet and outlet water holes 302, which are evenly spaced around the axis of the electrode 300. All inlet and outlet water holes 302 are located outside the sealing head 220, that is, they are not located in the cavity 201 of the tube body 210, but are independently configured from the cavity 201 of the tube body 210. Both electrodes 300 are fixed on the positioning member 120, and the hollow channels 301 of both electrodes 300 are connected to the injection tube 150. The electrodes 300 and the injection tube 150 are sealed to the positioning member 120. During surgery, physiological saline and other liquids can be injected from the electrode 300 into the tissue through the injection tube 150. Physiological saline enters the hollow channel 301 through the injection tube 150, and then leaves the electrode 300 through the inlet / outlet holes 302.

[0047] It should be understood that the electrode 300 is inserted into the tube body 210, making reasonable use of the tube cavity 201 of the tube body 210 and improving the compactness of the structure. Due to the design of the positioning element 120 and the sealing head 220, the tube cavity 201 of the tube body 210 and the hollow channel 301 of the motor are independent of each other, and cross-contamination is not easy.

[0048] In addition, bends can be provided at the distal end of the tube body 210 and the distal end of the electrode 300, and the angle of the bends can be 90°-180°, etc.

[0049] In this embodiment, optionally, the bipolar hemostasis surgical instrument further includes a first electrical plug 500 and a second electrical plug 600. The first electrical plug 500 is electrically connected to the two electrodes 300, and the wires 700 on the first electrical plug 500 pass through the sealing member 130. The second electrical plug 600 is electrically connected to the two temperature sensors 400 respectively through two sets of wires 700, and the wires 700 on the second electrical plug 600 pass through the sealing member 130. The temperature sensors 400 are installed in the hollow channel 301 and correspond to the distal positions of the electrodes 300. At the same time, the wires 700 connecting the temperature sensors 400 are arranged in the hollow channel 301, resulting in a compact overall structure and small size.

[0050] The bipolar hemostatic surgical instrument provided in this embodiment features a smoke inlet 202 on the outer sheath 200. This smoke inlet 202 connects to a smoke exhaust outlet 101 on the handle 100 via the lumen 201 of the outer sheath 200. During surgery, when the electrode 300 acts on the tissue for coagulation, a large amount of smoke is generated, entering the lumen 201 through the smoke inlet 202 and then exiting through the smoke exhaust outlet 101. This timely and effective removal of smoke from the surgical area reduces interference with the surgical field of view, lowers the difficulty of the surgery, and increases the success rate. Simultaneously, each electrode 300 is equipped with a temperature sensor 400, which monitors the temperature of the corresponding electrode 300. Based on the temperature feedback from the temperature sensor 400, the real-time temperature of the electrode 300 is adjusted to ensure a suitable temperature, minimizing problems such as poor coagulation and tissue damage caused by uneven heating.

[0051] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A bipolar hemostatic surgical instrument, characterized by, include: The device comprises a handle (100), an outer sheath (200), two electrodes (300), and two temperature sensors (400). The handle (100) has a smoke vent (101). The outer sheath (200) has a cavity (201) and a smoking port (202). The outer sheath (200) is connected to the handle (100), and both the smoke vent (101) and the smoking port (202) are connected to the cavity (201). The two electrodes (300) are inserted into the cavity (201) of the outer sheath (200) and arranged at intervals. Both electrodes (300) are connected to the handle (100). The two temperature sensors (400) are respectively connected to the two electrodes (300) to obtain the temperature of the corresponding electrodes (300).

2. The bipolar hemostatic surgical instrument according to claim 1, characterized in that: The outer sheath (200) includes a tube body (210) and a sealing head (220). The smoking port (202) is disposed on the tube wall of the tube body (210). The proximal end of the tube body (210) is connected to the handle (100). The sealing head (220) is installed at the distal end of the tube body (210) to close the distal port of the tube body (210). Both electrodes (300) penetrate the sealing head (220).

3. The bipolar hemostatic surgical instrument according to claim 2, characterized in that: The sealing head (220) is provided with two independent positioning holes (223), and the two electrodes (300) are respectively inserted into the two positioning holes (223). Each electrode (300) is sealed to the hole wall of the positioning hole (223).

4. The bipolar hemostatic surgical instrument according to claim 2, characterized in that: The sealing head (220) includes a first column (221) and a second column (222) connected together. The outer diameter of the first column (221) is smaller than the outer diameter of the second column (222) so as to form an annular abutment surface on the end face of the second column (222) that connects to the first column (221). The first column (221) is inserted into the distal end of the tube body (210). The annular abutment surface contacts the distal end face of the tube body (210), and the outer peripheral surface of the second column (222) is smoothly connected to the outer peripheral surface of the tube body (210).

5. The bipolar hemostatic surgical instrument according to any one of claims 1-4, characterized in that: The electrode (300) is provided with a hollow channel (301), and the temperature sensor (400) and the wire (700) connected to the temperature sensor (400) are housed in the hollow channel (301).

6. The bipolar hemostatic surgical instrument according to claim 5, characterized in that: The handle (100) is provided with a liquid injection hole; the electrode (300) is provided with a water inlet and outlet hole (302), the water inlet and outlet hole (302) is connected to the hollow channel (301), and the hollow channel (301) is connected to the liquid injection hole.

7. The bipolar hemostatic surgical instrument according to any one of claims 1-4, characterized in that: The handle (100) is provided with an assembly hole (111), a smoking chamber (112), and a smoking channel (113). The assembly hole (111) is connected to the smoking chamber (112). The diameter of the smoking chamber (112) is larger than the diameter of the assembly hole (111). The outer sheath (200) passes through the assembly hole (111) and the smoking chamber (112). The outer sheath (200) and the smoking channel (113) are both connected to the smoking chamber (112). The exhaust port (101) is connected to the smoking channel (113).

8. The bipolar hemostatic surgical instrument according to claim 7, characterized in that: The outer sheath (200) and the wall of the smoking chamber (112) cooperate to define an annular smoking chamber (102), and the tube wall of the outer sheath (200) is provided with a through hole (203) communicating with the annular smoking chamber (102).

9. The bipolar hemostatic surgical instrument according to claim 8, characterized in that: The number of through holes (203) is multiple and they are arranged at intervals around the outer sheath (200).

10. The bipolar hemostatic surgical instrument according to claim 1, characterized in that: The bipolar hemostasis surgical instrument also includes a first electrical plug (500) and a second electrical plug (600), wherein the first electrical plug (500) is electrically connected to the two electrodes (300) and the second electrical plug (600) is electrically connected to the two temperature sensors (400).

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