Hemostatic device

Abstract

The utility model relates to a hemostasis device. The hemostasis device is used for endoscopic surgery and comprises a hemostasis part used for stopping bleeding of a target object and comprising a contact surface which is configured to be capable of being attached to the target object; the operating part is configured to be connected to an external power supply, and the operating part can control the hemostasis part to move, so that the contact surface can be attached to a target object; one end of the conductive part is connected to the hemostasis part, the other end of the conductive part is connected to the operation part, and the conductive part is configured to convey current of an external power supply to the hemostasis part. The hemostasis device is simple in structure and convenient to operate, hemostasis of a target object can be rapidly and effectively achieved, and the surgical treatment effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a hemostatic device used for endoscopic surgery. Background Art

[0002] Gastrointestinal bleeding is a common clinical syndrome, which can be caused by various factors such as inflammation of the digestive tract itself, mechanical injury, vascular lesions, tumors, etc. In recent years, with the widespread development of endoscopic surgeries such as endoscopic submucosal dissection (ESD), intraoperative bleeding is a normal phenomenon. Due to the different locations of the patient's lesions in the digestive tract, the location of intraoperative bleeding is also different. For locations that are relatively easy to control with an endoscope, such as the greater curvature of the stomach, intraoperative hemostasis is well controlled. For narrow locations of the digestive tract such as the pancreatic and gallbladder and bleeding points with unclear bleeding points, endoscopic hemostasis is more difficult to control.

[0003] In the related art, most hemostasis methods are accomplished by hemostatic forceps, which have strong clamping force and can stop bleeding for a long time, and are suitable for larger bleeding locations. However, due to the complex structure and difficulty of operation of hemostatic forceps, it is difficult to directly act on narrow locations such as the pancreas and gallbladder. When using hemostatic forceps to stop bleeding in locations such as the pancreas and gallbladder, multiple hemostasis failures often occur. Summary of the invention

[0004] Based on this, it is necessary to provide a hemostatic device that is easy to operate and reliable in hemostasis to address the above technical problems, so as to be suitable for narrow locations such as the pancreas and gallbladder.

[0005] The present application provides a hemostatic device for use in endoscopic surgery, the hemostatic device comprising: a hemostatic piece for stopping bleeding of a target object, the hemostatic piece comprising a contact surface, the contact surface being configured to be able to fit against the target object; an operating piece, configured to be connected to an external power source, the operating piece being able to manipulate the movement of the hemostatic piece so that the contact surface can fit against the target object; and a conductive piece, one end of the conductive piece being connected to the hemostatic piece, the other end being connected to the operating piece, the conductive piece being configured to transmit current from the external power source to the hemostatic piece.

[0006] In one embodiment, the conductive part includes a guide portion and an insulating portion, the insulating portion can accommodate the guide portion, the guide portion is configured to be electrically connected to the hemostatic part at one end and electrically connected to an external power supply at the other end, and the insulating portion is configured to be fixed to the hemostatic part at one end and fixed to the operating part at the other end.

[0007] In one embodiment, the hemostatic device includes a hemostatic portion and a coupling portion, the hemostatic portion is connected to the coupling portion and the outer surface of the hemostatic portion is configured as a contact surface, the coupling portion is connected to the guide portion, and the coupling portion is arranged along the central axis of the hemostatic portion.

[0008] In one embodiment, at least part of the combining part is arranged in the hemostatic part, and a first accommodating cavity is formed between the hemostatic part and the combining part, and the first accommodating cavity is used to accommodate the insulating part. A second accommodating cavity is provided in the combining part, and the second accommodating cavity is used to accommodate the guide part.

[0009] In one embodiment, the combining portion includes a first end and a second end, the first end and the second end are arranged opposite to each other, the first end is connected to the hemostasis portion, and the second accommodating cavity is extended from the second end in a direction toward the first end.

[0010] In one embodiment, the cross-sectional area of ​​at least a portion of the first accommodating cavity gradually decreases from the second end toward the first end.

[0011] In one embodiment, a cross-sectional area of ​​at least a portion of the first end portion is larger than a cross-sectional area of ​​the hemostatic portion.

[0012] In one embodiment, the first accommodating cavity extends from the second end toward the first end by a first preset distance, and the second accommodating cavity extends from the second end toward the first end by a second preset distance, and the first preset distance is greater than the second preset distance.

[0013] In one embodiment, the hemostasis portion includes a main body and a limiting portion, and the limiting portion is configured to extend from an end of the main body close to the first end portion in a direction away from the contact surface.

[0014] In one embodiment, one end of the coupling portion is connected to the hemostatic portion, and the other end is connected to the flow guiding portion. The cross-sectional area of ​​the coupling portion is smaller than that of the hemostatic portion, and at least a portion of the coupling portion is disposed in the insulating portion.

[0015] In one embodiment, the hemostatic element includes a connecting portion, an outer periphery of the connecting portion is spaced apart from the insulating portion, and an inner periphery of the connecting portion is connected to the combining portion and the guide portion.

[0016] In one embodiment, the hemostatic part also includes a heat insulating portion, which is disposed between the hemostatic portion and the connecting portion. The heat insulating portion is disposed along the central axis of the hemostatic portion and is configured to prevent direct contact between the hemostatic portion and the insulating portion. A third accommodating cavity is disposed in the heat insulating portion, and the third accommodating cavity is used to accommodate the combining portion, and part of the insulating portion can be sleeved on the heat insulating portion.

[0017] In one of the embodiments, a groove is provided on the heat insulating part, and the groove is used to accommodate an adhesive, through which the heat insulating part can be fixedly connected to the insulating part.

[0018] In one of the embodiments, the radial dimension of the groove is smaller than the axial dimension of the groove.

[0019] In one embodiment, the operating member includes a conductive socket, the conductive socket is used to connect to an external power source, and the conductive member is connected to the conductive socket.

[0020] In one embodiment, the operating member further includes a fixing portion, which is disposed at one end of the operating member close to the hemostatic member, and is used to fix the conductive member.

[0021] The hemostatic device is used to fit the contact surface of the hemostatic component to the target object through the operating component, and transmits current to the hemostatic component through the conductive component, thereby achieving hemostasis of the target object through electrocoagulation. The hemostatic device has a simple structure and is easy to operate. It can quickly and effectively achieve hemostasis of the target object, thereby improving the surgical treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a partial assembly diagram of a hemostatic device in an embodiment of the present application, wherein an insulating portion is accommodated in a first accommodating cavity.

[0023] FIG. 2 is a partial assembly diagram of a hemostatic device in an embodiment of the present application, wherein the conductive member is connected to the operating member.

[0024] FIG. 3 is a partial cross-sectional view of the hemostatic device in FIG. 1 .

[0025] FIG. 4 is a cross-sectional view of the hemostatic element in FIG. 1 .

[0026] FIG. 5 is a partial assembly diagram of a hemostatic device in an embodiment of the present application, wherein the hemostatic component includes an insulating portion.

[0027] FIG. 6 is a partial schematic diagram of the hemostatic element in FIG. 5 .

[0028] FIG. 7 is a schematic diagram of an insulating portion in an embodiment of the present application.

[0029] FIG8 is a schematic diagram of a conductive member connected to an operating member in an embodiment of the present application, wherein the conductive member is connected to the operating member.

[0030] Description of reference numerals:

[0031] 100. Hemostatic device; 10. Hemostatic member; 11. Contact surface; 12. Hemostatic portion; 121. Main body; 122. Limiting portion; 13. Combining portion; 131. Second accommodating chamber; 132. First end portion; 133. Second end portion; 134. Opening groove; 14. First accommodating chamber; 15. Heat insulating portion; 151. Third accommodating chamber; 152. Groove; 16. Connecting portion; 20. Operating member; 21. Conductive socket; 22. Fixing portion; 30. Conductive member; 31. Guide portion; 32. Insulating portion. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0038] Referring to Figures 1 to 7, Figures 1 to 7 show schematic diagrams of a hemostatic device 100 in an embodiment of the present application. The hemostatic device 100 provided in an embodiment of the present application is used for surgical hemostasis during endoscopic surgery. Optionally, it is used for surgical hemostasis of the digestive tract during digestive endoscopic surgery.

[0039] 1 and 2, the hemostatic device 100 includes a hemostatic member 10, a conductive member 30, and an operating member 20. The hemostatic member 10 is used to stop bleeding of a target object such as a surgical wound, and directly abuts against the target object. The size of the hemostatic member 10 can be set according to the position of the target object. For example, if the target object is in a narrow position of the digestive tract such as the pancreatic and gallbladder part, a hemostatic member 10 that matches the size of the narrow position of the digestive tract can be set, so that the hemostatic member 10 can stop bleeding of the target object.

[0040] The hemostatic device 10 includes a contact surface 11, which can be directly attached to the target object. By setting the contact surface 11 of different sizes, the hemostatic device 10 can be suitable for targets of different sizes. Further, the contact surface 11 is configured to be smoothly set. The smoothly set contact surface 11 can prevent the hemostatic device 10 from causing secondary damage to the target object. At the same time, the smoothly set contact surface 11 allows the hemostatic device 10 to be directly attached to the target object, expands the contact area between the hemostatic device 10 and the target object, and achieves accurate hemostasis of the target object.

[0041] Optionally, the hemostat 10 is made of a metal material with good electrical conductivity, such as stainless steel. In the embodiment disclosed in the present application, the hemostat 10 is cylindrical as a whole. The cylindrical arrangement allows the contact surfaces 11 at different positions to contact the target object, and avoids the hemostat 10 from damaging the target object due to edges and corners during movement. Generally, the hemostat 10 can be prepared by CNC machining, powder metallurgy molding, metal deposition, etc. In other embodiments, the hemostat 10 can be prismatic, spherical or irregular in shape.

[0042] Due to its large size, the hemostatic forceps are difficult to use in narrow cavities or organs, and it is difficult for the hemostatic forceps to pass through curved cavities, and it is difficult to move. In addition, the rigid clamps of the hemostatic forceps limit the range of movement and flexibility of the hemostatic forceps. Compared with the hemostatic forceps, although the hemostatic piece 10 made of metal material also has rigidity, the hemostatic piece 10 stops bleeding by contacting the target object, so the operation of the hemostatic piece 10 is more convenient, and within the preset size range, such as the axial size of the hemostatic piece is not greater than 6mm, the hemostatic piece 10 can have a larger contact area with the target object, while also having a large range of movement and good flexibility, and is easy to pass through curved cavities, and can act on narrow cavities or organs, and has good applicability.

[0043] The operating member 20 is used to connect to an external power source, so that the conductive member 30 can transmit high-frequency current to the hemostatic member 10, thereby causing electrocoagulation of the target object in contact with the contact surface 11 to achieve hemostasis of the target object. The operating member 20 can manipulate the movement of the hemostatic member 10 so that the contact surface 11 can fit the target object.

[0044] The setting of the operating member 20 facilitates the control of the position of the hemostatic member 10, thereby ensuring that the hemostatic member 10 can reach the correct target position, such as the position of the digestive tract stenosis and the bleeding point where the bleeding point is unclear, so as to accurately stop the bleeding of the target object. Usually, the operating member 20 is set outside the human body, and a component that is easy to handle, such as a handle, is selected.

[0045] One end of the conductive member 30 is connected to the hemostatic member 10, and the other end is connected to the operating member 20, so as to transmit the external power supply to the hemostatic member 10. The operating member 20 can manipulate the movement of the conductive member 30, thereby manipulating the movement of the hemostatic member 10. The provision of the conductive member 30 realizes the mechanical connection between the operating member 20 and the hemostatic member 10 and the electrical connection between the external power supply and the hemostatic member 10.

[0046] 1 and 3, the conductive member 30 includes a flow guide 31 and an insulating member 32. The insulating member 32 is tubular as a whole, and is formed with a hollow pipe for accommodating the flow guide 31. The insulating member 32 is sleeved on the flow guide 31. On the one hand, it is used to protect the flow guide 31, and on the other hand, it provides insulation for the conductive member 30 to prevent high-frequency current leakage or high-frequency current interference by external current. Because the conductive member 30 needs to be placed in the human body along with the hemostatic member 10, the conductive member 30 is generally made of soft material as a whole to facilitate the bending of the conductive member 30.

[0047] The guide part 31 is used to transmit the current of the external power source to the hemostatic member 10. Optionally, the guide part 31 is a single-strand metal wire or a plurality of metal wires, and the current generated by the external power source is transmitted to the hemostatic member 10 through the conductive metal wire, so that the hemostatic member 10 can transmit the high-frequency current to the target object, so that the target object is electrocoagulated to achieve hemostasis of the target object.

[0048] One end of the insulating portion 32 is fixed to the hemostatic member 10, and the other end is fixed to the operating member 20, so that the hemostatic member 10 can be moved to the position of the target object by moving the operating member 20. Optionally, the insulating portion 32 is made of a plastic material such as polytetrafluoroethylene.

[0049] The hemostatic member 10 is moved to the position of the target object such as a surgical wound surface where hemostasis is required by the operating member 20, and the hemostatic member 10 directly contacts the target object, and then the current is transmitted to the hemostatic member 10 by the conductive member. The high-frequency alternating current acts on the target object, so that the target object undergoes electrocoagulation, thereby achieving rapid and accurate hemostasis of the target object. The hemostatic device 100 has a simple structure and is easy to operate, and can stop bleeding on the target object without the need for opening and closing operations such as hemostatic forceps.

[0050] Furthermore, the overall size of the hemostatic device 10 can be set according to the size of the target object. Preferably, the axial size of the hemostatic device 10 is not greater than 6 mm. Therefore, the hemostatic device 10 can be used to stop bleeding in narrow locations of the digestive tract such as the pancreatic and gallbladder, as well as in bleeding points where bleeding points are unclear, thereby improving the controllability of endoscopic hemostasis, enhancing the effect of surgical treatment, and reducing treatment costs.

[0051] In some embodiments, referring to FIG. 4 , the hemostatic member 10 includes a hemostatic portion 12 and a coupling portion 13, the hemostatic portion 12 is connected to the coupling portion 13, and the outer surface of the hemostatic portion 12 is configured as a contact surface 11. The coupling portion 13 is connected to the conductive member 30. The high-frequency current transmitted by the conductive member 30 is transmitted to the hemostatic portion 12 through the coupling portion 13, and then transmitted to the target object through the outer surface of the hemostatic portion 12, thereby achieving hemostasis of the target object. It should be noted that the hemostatic portion 12 and the coupling portion 13 can be provided separately or integrally formed.

[0052] In the embodiment disclosed in the present application, the hemostatic device 10 includes only one hemostatic portion 12, so that the hemostatic device 10 can be adapted to target objects at different positions by changing the size of the hemostatic portion 12, and the contact surface 11 can be directly attached to the target object without any other operation, thereby simplifying the hemostatic process.

[0053] Furthermore, the hemostatic portion 12 is a hollow structure, and the coupling portion 13 is a nail-shaped structure as a whole. At least a portion of the coupling portion 13 is arranged in the hemostatic portion 12 and the coupling portion 13 is arranged along the central axis of the hemostatic portion 12. Thus, the current can be evenly transmitted from the coupling portion 13 to the hemostatic portion 12, so that the target object can be evenly electrocoagulated, avoiding excessive electrocoagulation of the target object due to excessive local current.

[0054] 3 and 4, a first accommodating cavity 14 is formed between the hemostatic part 12 and the connecting part 13, and the first accommodating cavity 14 is used to accommodate the insulating part 32. A second accommodating cavity 131 is provided in the connecting part 13, and the second accommodating cavity 131 is used to accommodate the flow guiding part 31. The first accommodating cavity 14 and the second accommodating cavity 131 respectively accommodate the insulating part 32 and the flow guiding part 31, thereby realizing the connection between the conductive member 30 and the hemostatic part 10, so that the high-frequency current of the conductive member 30 can be transmitted to the hemostatic part 10. In other embodiments, the first accommodating cavity 14 and the second accommodating cavity 131 are provided in the connecting part 13.

[0055] The provision of the first accommodating cavity 14 and the second accommodating cavity 131 simplifies the installation process of the conductive member 30 and the hemostatic member 10, and fully utilizes the internal space of the hemostatic member 10, so that the hemostatic member 10 can have the largest possible hemostatic portion 12, thereby having a larger contact surface 11, thereby achieving rapid and effective hemostasis of the target object, and improving the hemostatic effect of the hemostatic device 100.

[0056] Specifically in the embodiment, the guide portion 31 is fixedly connected to the coupling portion 13. The guide portion 31 can be fixed in the first accommodating cavity 14 by laser welding, bolt connection, rivet connection or adhesive connection, so that the guide portion 31 can move to the position of the target object with the hemostatic member 10, and avoid the current being unable to be transmitted to the hemostatic portion 12 due to the looseness of the guide portion 31.

[0057] In some embodiments, referring to Figures 3 and 4, the coupling portion 13 includes a first end portion 132 and a second end portion 133, and the first end portion 132 and the second end portion 133 are arranged opposite to each other. The first end portion 132 is connected to the end surface of the hemostatic portion 12 away from the conductive member 30. Preferably, the first end portion 132 is fixedly connected to the hemostatic portion 12 by means such as welding.

[0058] In the embodiment disclosed in the present application, the first end 132 of the coupling portion 13 is configured to be arc-shaped, and the maximum radial dimension of the coupling portion 13 matches the outer diameter of the hemostatic portion 12, so that the hemostatic portion 12 can be smoothly connected to the coupling portion 13. That is, the cross-sectional area of ​​at least part of the first end 132 is larger than the cross-sectional area of ​​the hemostatic portion 12, so that the first accommodating cavity 14 can be closed by the first end 132, and the insulating portion 32 is prevented from isolating the coupling portion 13 and the hemostatic portion 12, so that the current can always be transmitted to the hemostatic portion 12.

[0059] The insulating portion 32 is configured to be inserted into the first accommodating cavity 14, so as to fix one end of the insulating portion 32 to the hemostatic member 10. The second accommodating cavity 131 is extended from the second end 133 in a direction toward the first end 132. Preferably, the cross-sectional area of ​​at least part of the first accommodating cavity 14 gradually decreases from the second end 133 in a direction toward the first end 132, thereby facilitating the fixing of the insulating portion 32 in the first accommodating cavity 14. For the convenience of comparison and description, the direction from the second end 133 to the first end 132 is defined as the first direction S1 in this application.

[0060] The cross-sectional area of ​​at least part of the joint 13 gradually increases along the first direction S1, and the first direction S1 is parallel to the central axis. This arrangement can guide the insulating portion 32 into the first accommodating cavity 14, facilitating the insertion process of the insulating portion 32. In a feasible embodiment, the cross-sectional area of ​​the end of the insulating portion 32 close to the hemostatic member 10 gradually decreases along the first direction S1, so that the insulating portion 32 can be inserted into the first accommodating cavity 14. Optionally, the insulating portion 32 is made of a composite braided heat-resistant material, thereby reducing or even avoiding damage to the insulating portion 32 caused by the high temperature generated during the electrocoagulation of the hemostatic portion 12.

[0061] Preferably, the cross-sectional dimension of the first accommodating cavity 14 is smaller than the cross-sectional dimension of the insulating portion 32, so that the first accommodating cavity 14 and the insulating portion 32 are connected with an interference fit, so that the insulating portion 32 can be fixed in the first accommodating cavity 14, and the insulating portion 32 can move to the position of the target object along with the hemostatic element 10, thereby avoiding leakage of current due to loosening of the insulating portion 32.

[0062] In some embodiments, the first end portion 132 is provided with an open groove 134, and the open groove 134 is used to engage with an external tool. The open groove 134 can rotate around the central axis of the hemostatic portion under the action of the external tool, so that the coupling portion 13 moves relative to the insulating portion 32 in the direction toward the second end portion 133, so that the insulating portion 32 can be inserted into the first accommodating cavity 14. Through the rotation of the coupling portion 13, the insulating portion 32 can be squeezed into the first accommodating cavity 14. Optionally, the open groove 134 is set to be a straight-shaped or cross-shaped, and accordingly, a straight-shaped screwdriver or a cross-shaped screwdriver is selected to be inserted into the open groove 134 to realize the rotation of the coupling portion 13.

[0063] In a feasible embodiment, the coupling part 13 is provided with a thread, and the insulating part 32 and the coupling part 13 are fixedly connected by rotating the thread on the coupling part 13. This connection method is firm, not easy to loosen, easy to disassemble, and will not damage the insulating part 32 and the coupling part 13, so that the conductive member 30 and the hemostatic member 10 can be reused.

[0064] In other embodiments, the outer peripheral surface of the coupling portion 13 is provided with a serrated barb, and the insulating portion 32 and the coupling portion 13 are connected by the barb, so that the insulating portion 32 can be locked in the first accommodating cavity 14. The barb connection provides a larger connection area, making the connection tighter and more secure. Due to the shape of the barb, the tensile strength and shear strength of the connecting portion 16 are enhanced, thereby improving the stability and load-bearing capacity of the connection.

[0065] When the conductive part 30 and the hemostatic part 10 in the present application are connected, the guide part 31 is first accommodated and fixed in the second accommodating cavity 131 along the first direction S1, and then part of the insulating part 32 is placed in the first accommodating cavity 14, and finally the coupling part 13 is rotated by an external tool so that the insulating part 32 can be fixed in the first accommodating cavity 14.

[0066] Furthermore, the first accommodating cavity 14 extends from the second end 133 along the first direction S1 by a first preset distance, and the second accommodating cavity 131 extends from the second end 133 along the first direction S1 by a second preset distance, and the first preset distance is greater than the second preset distance. This arrangement enables the insulating portion 32 to provide complete coverage for the guide portion 31, thereby preventing the current leakage of the guide portion 31 from affecting the hemostasis effect.

[0067] In some embodiments, referring to Figure 4, the hemostasis portion 12 includes a main body 121 and a limiting portion 122, the contact surface 11 is configured on the main body 121, the limiting portion 122 is configured at one end of the main body 121 close to the first end 132, and the limiting portion 122 extends from one end of the main body 121 close to the first end 132 in a direction away from the contact surface 11.

[0068] The setting of the limiting portion 122 can limit the movement of the insulating portion 32 along the first direction S1, thereby preventing the insulating portion 32 from excessively squeezing the first accommodating cavity 14 , affecting the connection between the hemostatic portion 12 and the coupling portion 13 , and causing damage to the hemostatic member 10 .

[0069] In other embodiments, referring to FIG. 5 and FIG. 6 , the coupling portion 13 is extended along the central axis of the hemostatic portion 12, one end of the coupling portion 13 is connected to the hemostatic portion 12, and the other end is connected to the flow guiding portion 31. The cross-sectional area of ​​the coupling portion 13 is smaller than the cross-sectional area of ​​the hemostatic portion 12, and at least part of the coupling portion 13 is disposed in the insulating portion 32. Specifically, the coupling portion 13 is extended from the end surface of the hemostatic portion 12 close to the conductive member in a direction opposite to the first direction S1. The hemostatic portion 12 in this embodiment is cylindrical as a whole, and can stably transmit current to the target object.

[0070] In some embodiments, referring to FIG. 6 , the hemostatic element 10 includes a connecting portion 16 , an outer periphery of the connecting portion 16 is spaced apart from the insulating portion 32 , and an inner periphery of the connecting portion 16 is connected to the combining portion 13 and the guide portion 31 .

[0071] The connection part 16 fixes and connects the coupling part 13 and the guide part 31 , and provides installation space for the coupling part 13 and the guide part 31 , so that the guide part 31 can move with the coupling part 13 to the position of the target object.

[0072] The connection part 16 can be fixedly connected to the guide part 31 by welding, riveting, etc. The setting of the connection part 16 realizes the position fixation of the joint part 13, and at the same time, the outer periphery of the connection part 16 is spaced from the insulating part 32, so that the insulating part 32 can be sleeved on the connection part 16 to realize the installation of the insulating part 32.

[0073] In this embodiment, combined with Figure 7, the hemostatic device 100 also includes an insulating part 15 connected to the hemostatic part 12, the insulating part 15 is arranged along the central axis of the hemostatic part 12 and the insulating part 15 is connected to the hemostatic part 12, and a third accommodating cavity 151 is provided in the insulating part 15, and the third accommodating cavity 151 is used to accommodate the combining part 13, and the insulating part 32 can be sleeved on the insulating part 15.

[0074] The heat insulating part 15 is arranged between the hemostatic part 12 and the connecting part 16. The connecting part 16 is fixedly connected to the flow guiding part 31, so as to fix the position of the heat insulating part 15 and prevent the heat insulating part 15 from loosening during the movement, thereby affecting the movement of the hemostatic part 10 and the heat insulating effect of the heat insulating part 15.

[0075] The setting of the heat insulating portion 15 physically isolates the hemostatic portion 12 from the insulating portion 32, preventing the hemostatic portion 12 from directly contacting the insulating portion 32, making it difficult for the high temperature generated by the hemostatic portion 12 during electrocoagulation to be transferred to the insulating portion 32, thereby preventing the insulating portion 32 from being damaged by the high temperature. The heat insulating portion 15 can be made of a material with low thermal conductivity, such as a ceramic material such as zirconium oxide or a polymer material such as polyetheretherketone. In other embodiments, the insulating portion 32 is made of a heat-resistant material, and the hemostatic member 10 does not need to be provided with a heat insulating portion 15.

[0076] Furthermore, the heat insulating portion 15 is provided with a groove 152, and an adhesive such as glue is stored in the groove 152. Through the adhesive, the insulating portion 32 can be fixedly connected to the heat insulating portion 15, so that one end of the insulating portion 32 is fixed to the hemostatic member 10, so that the hemostatic member 10 can drive the conductive member 30 to move to the position of the target object. In other embodiments, barbs are provided on the outer periphery of the heat insulating portion 15, and the heat insulating portion 15 is fixedly connected to the insulating portion 32 through the barb structure.

[0077] Furthermore, the radial dimension of the groove 152 is smaller than the axial dimension of the groove 152 , which helps to improve the bonding firmness of the adhesive to the heat insulating part 15 and the insulating part 32 and the bonding strength between the heat insulating part 15 and the insulating part 32 .

[0078] In a feasible embodiment, at least part of the insulation part 15 has a size larger than the inner diameter of the insulating part 32 , so that there is an interference fit between the insulating part 32 and the insulation part 15 , thereby ensuring the connection stability between the insulating part 32 and the insulation part 15 .

[0079] In a feasible embodiment, the size of at least part of the insulation part 15 is smaller than the inner diameter of the insulating part 32, so that there is a clearance fit between the insulation part 32 and the insulation part 15, and an adhesive such as glue is provided between the insulation part 15 and the insulation part 32, so that the insulation part 32 is bonded to the insulation part 15, thereby ensuring the connection stability between the insulation part 32 and the insulation part 15.

[0080] When installing the hemostatic device 100 in this embodiment, the heat insulating part 15 is first passed through the connecting part 13, and then the connecting part 16 is sleeved on the connecting part 13, and the connecting part 13 and the connecting part 16 are welded and fixed. Then, the conductive part 31 is inserted into the connecting part 16, and the conductive part 31 and the connecting part 16 are welded and fixed, so that the conductive part 31 and the connecting part 13 are fixed. Finally, the insulating part 32 is sleeved on the connecting part 16 and the heat insulating part 15. The heat insulating part 15 and the insulating part 32 are fixedly connected by the adhesive in the groove 152.

[0081] In some embodiments, referring to FIG. 8 , the operating member 20 includes a fixing portion 22 and a conductive socket 21 , the conductive socket 21 is used to connect to an external power source, and the guide portion 31 is connected to the conductive socket 21 , so that the external power source can transmit high-frequency current to the hemostatic member 10 , causing electrocoagulation of the target object, thereby achieving the effect of stopping bleeding on the target object.

[0082] The fixing portion 22 is disposed at one end of the operating member 20 close to the hemostatic member 10, and the fixing portion 22 is used to fix the insulating portion 32. By connecting the fixing portion 22 to the end of the operating member 20 close to the hemostatic member 10, the insulating portion 32 is squeezed by the fixing portion 22, so that the insulating portion 32 can be fixedly connected to the operating member 20, so that by moving the operating member 20, the conductive member 30 can be driven to move, and the conductive member 30 drives the hemostatic member 10 to move, so that the hemostatic member 10 can be attached to the target object.

[0083] Furthermore, the radial dimension of part of the fixing portion 22 gradually increases along the third direction S3. The fixing portion 22 with a variable diameter can guide the insulating portion 32, guide the insulating portion 32 to enter between the fixing portion 22 and the end of the operating member 20, and then the fixing portion 22 squeezes the insulating portion 32 to fix the insulating portion 32. Optionally, the fixing portion 22 can be an umbrella-shaped setting or a variable diameter expansion setting.

[0084] In a feasible embodiment, barbs are further provided on the inner wall of the fixing portion 22, which is connected to the insulating portion 32 through the barbs, making the connection tighter and more secure, enhancing the tensile strength and shear strength of the connecting portion 16, and improving the stability and load-bearing capacity of the connection.

[0085] In other embodiments, the operating member 20 may further include a control unit not shown in the figure, which can control the intensity of the high-frequency current output to the hemostasis unit 12, so that the target object can be electrocoagulated and hemostasis can be stopped normally, avoiding damage to the target object due to excessive electrocoagulation.

[0086] The hemostatic member 10 is accurately moved to the position of the target object such as a surgical wound surface where hemostasis is required through the operating member 20, so that the contact surface 11 is directly attached to the target object, and then the high-frequency current is transmitted to the hemostatic member 10 through the conductive member 30, and the high-frequency alternating current acts on the target object, so that the target object undergoes electrocoagulation, thereby achieving rapid and accurate hemostasis of the target object. The hemostatic device 100 has a simple structure, a large contact area between the hemostatic member 10 and the target object, and can stop bleeding on the target object without the need for opening and closing operations such as hemostatic forceps, and is easy to operate.

[0087] During the hemostasis process, there is no relative movement between the hemostatic device 10 and the target object, and the contact area is large, so that the unclear bleeding point can also be covered by the contact surface 11, and the current transmission process is stable and reliable, so that the bleeding point can be hemostatic, and at the same time, the small-sized hemostatic device 10 is easy to move in the cavity and has good flexibility. The hemostatic device 10 can directly act on narrow locations such as the pancreatic and gallbladder parts, so that endoscopic hemostasis can be controlled, without the need for multiple hemostasis, and will not excessively electrocoagulate the target object, thereby improving the surgical treatment effect and reducing the cost of surgical treatment.

[0088] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A hemostatic device for endoscopic surgery, characterized in that: The hemostatic device (100) comprises: A hemostatic element (10) for stopping bleeding of a target object, the hemostatic element (10) comprising a contact surface (11), the contact surface (11) being configured to be able to fit the target object; An operating member (20) is configured to be connected to an external power source, and the operating member (20) is capable of manipulating the movement of the hemostatic member (10) so that the contact surface (11) can be attached to the target object; and A conductive member (30), one end of which is connected to the hemostatic member (10), and the other end of which is connected to the operating member (20), and the conductive member (30) is configured to transmit the current of the external power source to the hemostatic member (10).

2. The hemostatic device according to claim 1, characterized in that: The conductive member (30) comprises a flow guiding portion (31) and an insulating portion (32), wherein the insulating portion (32) is capable of accommodating the flow guiding portion (31), wherein one end of the flow guiding portion (31) is configured to be electrically connected to the hemostatic member (10) and the other end is electrically connected to the external power source, and the insulating portion (32) is configured to be fixed to the hemostatic member (10) at one end and fixed to the operating member (20) at the other end.

3. The hemostatic device according to claim 2, characterized in that: The hemostatic component comprises a hemostatic portion (12) and a coupling portion (13), wherein the hemostatic portion (12) is connected to the coupling portion (13) and an outer surface of the hemostatic portion (12) is configured as the contact surface (11), the coupling portion (13) is connected to the flow guide portion (31), and the coupling portion (13) is arranged along the central axis of the hemostatic portion (12).

4. The hemostatic device according to claim 3, characterized in that: At least part of the combining portion (13) is arranged in the hemostatic portion (12); a first accommodating cavity (14) is formed between the hemostatic portion (12) and the combining portion (13); the first accommodating cavity (14) is used to accommodate the insulating portion (32); a second accommodating cavity (131) is provided in the combining portion (13); the second accommodating cavity (131) is used to accommodate the flow guide portion (31).

5. The hemostatic device according to claim 4, characterized in that: The combining portion (13) comprises a first end portion (132) and a second end portion (133), wherein the first end portion (132) and the second end portion (133) are arranged opposite to each other, the first end portion (132) is connected to the hemostatic portion (12), and the second accommodating cavity (131) is extended from the second end portion (133) in a direction toward the first end portion (132).

6. The hemostatic device according to claim 5, characterized in that: The cross-sectional area of ​​at least a portion of the first accommodating cavity (14) gradually decreases from the second end (133) in a direction toward the first end (132).

7. The hemostatic device according to claim 5, characterized in that: The cross-sectional area of ​​at least a portion of the first end portion (132) is larger than the cross-sectional area of ​​the hemostatic portion (12).

8. The hemostatic device according to claim 5, characterized in that: The first accommodating cavity (14) extends from the second end (133) to a first preset distance in a direction toward the first end (132), and the second accommodating cavity (131) extends from the second end (133) to a second preset distance in a direction toward the first end (132), and the first preset distance is greater than the second preset distance.

9. The hemostatic device according to claim 5, characterized in that: The hemostatic portion (12) comprises a main body (121) and a limiting portion (122), wherein the limiting portion (122) is configured to extend from an end of the main body (121) close to the first end portion (132) in a direction away from the contact surface (11).

10. The hemostatic device according to claim 3, characterized in that: One end of the combining portion (13) is connected to the hemostatic portion (12), and the other end is connected to the flow guiding portion (31); the cross-sectional area of ​​the combining portion (13) is smaller than the cross-sectional area of ​​the hemostatic portion (12); and at least a portion of the combining portion (13) is disposed within the insulating portion (32).

11. The hemostatic device according to claim 10, characterized in that: The hemostatic component (10) comprises a connecting portion (16), the outer periphery of the connecting portion (16) being spaced apart from the insulating portion (32), and the inner periphery of the connecting portion (16) being connected to the combining portion (13) and the guide portion (31).

12. The hemostatic device according to claim 11, characterized in that: The hemostatic component (10) further comprises a heat insulating portion (15), wherein the heat insulating portion (15) is arranged between the hemostatic portion (12) and the connecting portion (16), wherein the heat insulating portion (15) is arranged along the central axis of the hemostatic portion (12) and the heat insulating portion (15) is arranged to prevent direct contact between the hemostatic portion (12) and the insulating portion (32), wherein a third accommodating cavity (151) is arranged in the heat insulating portion (15), wherein the third accommodating cavity (151) is used to accommodate the combining portion (13), and a portion of the insulating portion (32) can be sleeved on the heat insulating portion (15).

13. The hemostatic device according to claim 12, characterized in that: The heat insulating part (15) is provided with a groove (152), and the groove (152) is used to accommodate an adhesive, and the heat insulating part (15) can be fixedly connected to the insulating part (32) through the adhesive.

14. The hemostatic device according to claim 13, characterized in that: The radial dimension of the groove (152) is smaller than the axial dimension of the groove (152).

15. The hemostatic device according to any one of claims 1 to 14, characterized in that: The operating member (20) comprises a conductive socket (21), the conductive socket (21) is used to connect to the external power source, and the conductive member (30) is connected to the conductive socket (21).

16. The hemostatic device according to claim 15, characterized in that: The operating member further comprises a fixing portion (22), wherein the fixing portion (22) is arranged at one end of the operating member (20) close to the hemostatic member (10), and the fixing portion (22) is used to fix the conductive member (30).

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