WO2024093804A1

WO2024093804A1 - Heating structure and heating device

Info

Publication number: WO2024093804A1
Application number: PCT/CN2023/126910
Authority: WO
Inventors: 衷兴华
Original assignee: 杭州超博医疗科技有限公司
Priority date: 2022-11-04
Filing date: 2023-10-26
Publication date: 2024-05-10
Also published as: CN115604874A

Abstract

Provided in the embodiments of the present application are a heating structure and a heating device. The heating structure comprises a tubular member, at least one heating core and an insulating assembly, wherein the at least one heating core is arranged in the insulating assembly, and the insulating assembly is arranged in the tubular member. The heating structure provided in the embodiments of the present application has a relatively compact radial size and a relatively small overall volume, thereby facilitating the miniaturization design of the heating device; and the heating structure can be suitable for a narrower operation space, and can thus enrich application scenarios of the heating device.

Description

Heating structure and heating device

Technical Field

The present application relates to the technical field of medical equipment, and in particular, to a heating structure and a heating device.

Background technique

With the continuous development of medical technology, medical devices are increasingly used in some medical scenarios, such as laparoscopic minimally invasive surgery. In some operations, medical devices are needed to ablate, cut or electrocoagulate the target tissue.

Generally, during the operation, surgical forceps are used to clamp the target tissue, a blade is used to cut the target tissue, and then an electrocoagulation device is used to electrocoagulate the cut target tissue to stop bleeding, which is relatively cumbersome to implement.

In the related art, a heating device with a heating structure is used to thermally separate the target tissue, and the target tissue can be closed or coagulated after cutting while the cutting is separated. However, the heating structure is large, which makes the heating device larger, making it difficult to perform precise operations in a relatively narrow space, resulting in very limited application scenarios.

Summary of the invention

In view of the shortcomings of the existing methods, the present application proposes a heating structure and a heating device to solve the technical problem of the large size of the heating structure in the prior art.

In a first aspect, an embodiment of the present application provides a heating structure for separating a target tissue, the heating structure comprising: a tubular member, at least one heating core, and an insulating component;

The insulating component is arranged inside the tubular member;

At least one heating core is arranged inside the insulating component.

Optionally, the first end of the tubular member is open and the second end is closed; the heating structure further comprises: setting A filling structure at the inner wall of the second end of the tubular member;

The heating core has at least one bent portion and at least two straight portions spaced apart from each other connected by the bent portion;

The filling structure is filled between the inner wall and the bending portion.

Optionally, the insulating assembly includes: an insulating heat-conducting layer attached to the inner circumferential wall of the tubular member, and an insulating structure disposed in the insulating heat-conducting layer;

Along the circumference of the heating core, a portion of the outer circumference of the heating core is in contact with the insulating heat-conducting layer, and another portion of the outer circumference is in contact with the insulating structure.

Optionally, the heating structure further comprises: a first conductive wire; at least two heating cores comprising: a first heating core and a second heating core arranged in parallel and at intervals;

The first heating core, the insulating structure and the second heating core are arranged in sequence along a direction perpendicular to the axial direction of the tubular member;

The first end of the first wire is used to be electrically connected to the power supply of the heating device, the second end of the first wire extends into the tubular member and is electrically connected to the first end of the first heating core, and the second end of the first heating core is electrically connected to the second end of the second heating core.

Optionally, the first end of the tubular member is open and the second end of the tubular member is closed;

A conductor structure is arranged at the inner wall of the second end of the closed tubular member, and the second end of the first heating core and the second end of the second heating core are both in contact with or connected to the conductor structure.

Optionally, the first end of the first wire is used to be electrically connected to the first electrode of the power supply, and the second end of the first wire is electrically connected to the first end of the first heating core;

The first end of the second heating core is electrically connected to the tubular member, and the tubular member is electrically connected to the second electrode of the power supply.

Optionally, the heating structure further comprises: a fixing portion located inside the tubular member;

The fixing portion is located at one end of the first heating core and the second heating core away from the inner wall and is fixedly connected to the inner peripheral wall of the tubular member;

The first wire is passed through the fixing portion.

Optionally, the heating structure further comprises: a sealant located within the first end of the tubular member;

The sealant is located at one end of the fixing part away from the first heating core and is fixedly connected to the fixing part, sealing The circumferential surface of the rubber is sealedly connected to the inner circumferential wall of the tubular member to seal the opening;

The first wire is passed through the sealant.

In a second aspect, an embodiment of the present application provides a heating device, comprising: any heating structure provided in the first aspect above.

Optionally, the heating device further comprises: a first clamping member and a second clamping member, for clamping the target tissue in a closed state;

The heating structure is arranged on the clamping surface of the first clamping member and is electrically connected to the second electrode of the power source through the first clamping member.

Optionally, the heating device further comprises: a rod portion;

The first clamping member and the second clamping member are both connected to one end of the rod;

The first end of the tubular member of the heating structure is close to the rod portion, and the first wire of the heating structure extends into the inner cavity of the rod portion.

Optionally, the clamping surface of the first clamping member of the heating device has a groove, and the clamping surface of the second clamping member has a clamping pad corresponding to the groove;

The tubular component of the heating structure is embedded in the groove, and the radial dimension of the tubular component is greater than the depth of the groove.

The beneficial technical effects brought about by the technical solution provided by the embodiments of the present application include:

In the heating structure provided in the embodiment of the present application, the heating core and the insulating component are both arranged in the inner space of the tubular member, and the insulating component can wrap around the circumference of the heating core, isolating the heating core from the tubular member, so that the heating core and the inner circumferential wall of the tubular member are insulated from each other. The heating structure can generate heat, and perform operations such as cutting, separating, and then closing the target tissue. The heating structure is composed of the heating core, the insulating component, and the inner circumferential wall of the tubular member in the radial direction of the tubular member, so that the radial dimension of the heating structure is relatively compact and the overall volume is relatively small, which is conducive to the miniaturized design of the heating device and can be applied to a narrower working space, thereby enriching the application scenarios of the heating device.

Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be learned through the practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

FIG1 is a schematic structural diagram of a heating structure provided in an embodiment of the present application;

FIG2 is a cross-sectional schematic diagram of a heating structure provided in an embodiment of the present application;

FIG3 is a cross-sectional schematic diagram of another heating structure provided in an embodiment of the present application;

FIG4 is a schematic cross-sectional view of the line AA in FIG3 ;

FIG5 is a schematic diagram of the structure of a heating device provided in an embodiment of the present application;

FIG. 6 is a partial enlarged view of point B in FIG. 5 .

Description of the drawings:

100- heating device;

10- Heating structure;

11- tubular member; 111- first end of tubular member 11; 112- second end of tubular member 11; 113- inner wall;

12-insulating heat-conducting layer;

13 - a first heating core; 131 - a first end of the first heating core 13; 132 - a second end of the first heating core 13;

14 - a second heating core; 141 - a first end of the second heating core 14; 142 - a second end of the second heating core 14;

15-Insulation structure;

16- a first conductor;

17-fixed part;

18- Sealant;

19-filling structure;

101-bending portion; 102-straight portion;

20-first clamping member; 30-second clamping member; 40-rod; 50-handle;

C-axial; D-radial.

Detailed ways

The following describes the embodiments of the present application in conjunction with the drawings in the present application. It should be understood that the implementation methods described below in conjunction with the drawings are exemplary descriptions of the technical solutions of the embodiments of the present application. This does not constitute a limitation on the technical solutions of the embodiments of the present application.

Those skilled in the art will appreciate that, unless expressly stated, the singular forms "one", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present application refers to the presence of the features, integers, elements and/or components, but does not exclude the implementation of other features, information, data, elements, components and/or combinations thereof supported by the technical field. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, the one element may be directly connected or coupled to the other element, or may refer to the one element and the other element establishing a connection relationship through an intermediate element. The term "and/or" used herein refers to at least one of the items defined by the term, for example, "A and/or B" may be implemented as "A", or as "B", or as "A and B".

In order to make the objectives, technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

The research and development ideas of this application include: in order to achieve the expected effect in the related technology, the heat generated by the heating structure is required to be relatively high, and a larger area or longer heating core is required to fill the entire tubular member. For example, a heating core bypasses the inner space of the tubular member, increasing the path of the heating core, resulting in a larger volume of the heating core after bypassing, and the corresponding tubular member volume is also larger, resulting in a larger volume of the entire heating structure.

The heating structure and heating device provided in this application are intended to solve the above technical problems in the prior art.

The following is a detailed description of the technical solution of the present application and how the technical solution of the present application solves the above technical problems with specific embodiments. It should be noted that the following implementations can refer to, draw on or combine with each other, and the same terms, similar features and similar implementation steps in different implementations will not be described repeatedly.

The embodiment of the present application provides a heating structure 10 for separating target tissue. Please refer to Figures 1 to 3. The heating structure 10 includes: a tubular member 11, at least one heating core and an insulating component.

The insulating component is disposed inside the tubular member 11 .

At least one heating core is disposed inside the tubular member 11 .

In this embodiment, the heating core and the insulating component in the heating structure 10 are both arranged in the tubular member 11. In the inner space of the tube, the insulating component can be wrapped around the circumference of the heating core, isolating the heating core from the tubular member 11, so that the heating core and the inner circumferential wall of the tubular member 11 are insulated from each other. The heating structure 10 can generate heat, cut and separate the target tissue, and then close the end. The heating structure 10 is composed of the heating core, the insulating component and the inner circumferential wall of the tubular member 11 along the radial direction D of the tubular member 11, so that the size of the heating structure 10 along the radial direction D is relatively compact and the overall volume is small, which is conducive to the miniaturized design of the heating device 100 and can be applied to a smaller working space, thereby enriching the application scenarios of the heating device 100.

It can be understood that the radial direction here actually refers to the radial direction in which the heating core exists.

Optionally, the insulating component can be manufactured in one piece, or can be manufactured separately as the insulating thermal conductive layer 12 and the insulating structure 15 .

Optionally, please refer to FIG. 2 , the first end 111 of the tubular member 11 is open, and the second end 112 is closed; the heating structure 10 further includes: a filling structure 19 disposed at the inner wall 113 of the second end 112 of the tubular member 11 .

The heating core has at least one bent portion 101 and at least two straight portions 102 spaced apart from each other connected to the bent portion 101 .

The filling structure 19 is filled between the inner wall 113 and the bending portion 101 .

Specifically, a heating core is folded in half near the inner wall 113 to obtain two parallel straight portions 102, one end of one of the straight portions 102 is connected to the first wire 16, and the other end of the straight portion 102 away from the bent portion 101 is electrically connected to the power supply. In this embodiment, a heating core can be used to fold in a serpentine shape in an insulating component to increase the heating area. In addition, since the tubular member 11 may be a conductor, a filling structure 19 is used at the bent portion 101 to isolate the bent portion from the inner wall 113, thereby avoiding the problem of increased process costs caused by insulation treatment at the inner wall 113.

Optionally, the filling structure 19 is wrapped outside the bending portion 101 .

Optionally, the material of the filling structure 19 is magnesium oxide, which has the characteristics of insulation and high temperature resistance.

Optionally, the two straight portions 102 can be similar to the first heating core 13 and the second heating core 14 arranged in parallel and at intervals, and their ends can also be fixed and sealed by the fixing portion and the sealant. The difference is that the two straight portions 102 are electrically connected through the bending portion 101, and the first heating core 13 and the second heating core 14 are electrically connected through the inner wall 113. The specific structure can be seen in detail below. describe.

In some possible implementations, referring to FIG. 4 , the insulation assembly includes: an insulation heat-conducting layer 12 attached to the inner circumferential wall of the tubular member 11 , and an insulation structure 15 disposed in the insulation heat-conducting layer 12 .

Along the circumference of the heating core, a portion of the outer circumference of the heating core is in contact with the insulating heat-conducting layer 12 , and another portion of the outer circumference is in contact with the insulating structure 15 .

In this embodiment, the outer circumference of the heating core is in an arc shape, and the insulating heat-conducting layer 12 is a film structure coated on the inner circumferential wall of the tubular member 11, and its inner side is also in an arc shape. The outer circumference of the heating core is in contact with the inner side of the insulating heat-conducting layer 12, so that the heating core and the insulating heat-conducting layer 12 have a certain contact area, which can improve the heat conduction efficiency between the heating core and the insulating heat-conducting layer 12, and further improve the heating efficiency of the entire heating structure 10. Another part of the outer circumference of the heating core is in contact with the insulating structure 15, that is, the insulating heat-conducting layer 12 and the insulating structure 15 wrap the heating core inside, so that the outer circumference of the heating core does not contact other structures, ensuring that the heating cores can be isolated from each other, and also ensuring that the heating core will not cause leakage to the tubular member 11.

Optionally, along the radial direction D of the tubular member 11 , one side of the heating core contacts or abuts against the insulating heat-conducting layer 12 , and the other side contacts or abuts against the insulating structure 15 .

Optionally, the heating core is electrically connected to a power source of the heating device 100, and the power source can supply energy to the heating core, causing the heating core to generate heat, which is then transferred to the tubular member 11 through the insulating heat-conducting layer 12. When the outer peripheral surface of the tubular member 11 reaches the designed temperature, the target tissue can be cut or closed.

Optionally, please refer to Figures 3 and 4, at least two heating cores include: a first heating core 13 and a second heating core 14 arranged in parallel. The outermost side of the inner space of the tubular member 11 is the inner circumferential wall of the tubular member 11, and then inward in sequence are the insulating heat-conducting layer 12, the heating core (the first heating core 13 or the second heating core 14), and the insulating structure 15. Multiple heating cores can be arranged close to the insulating heat-conducting layer 12 at intervals, and the heating cores are separated by the insulating structure 15 to avoid short circuits between the heating cores. The use of multiple heating cores at intervals can reduce the space occupied by the heating cores in the tubular member 11, and can reduce the radial D dimension of the heating tube.

Optionally, the insulating structure 15 also has a heat-conducting property, and the first heating core 13 and the second heating core 13 are The core 14 and the insulating structure 15 can conduct heat to each other, which can ensure the temperature uniformity of the heating structure 10, thereby ensuring the operating efficiency of the heating device 100 during operation, and reducing the consequences of inaccurate or time-consuming separation of the target tissue due to inconsistent temperature of the heating structure 10.

In some possible implementations, the heating structure 10 further includes: a first conductive wire 16. The at least one heating core includes: a first heating core 13 and a second heating core 14 which are arranged in parallel and at intervals.

The first heating core 13 , the insulating structure 15 and the second heating core 14 are arranged in sequence along a direction perpendicular to the axial direction C of the tubular member 11 .

The first end of the first wire 16 is used to be electrically connected to the power supply of the heating device 100 , and the second end of the first wire 16 extends into the tubular member 11 and is electrically connected to the first end 131 of the first heating core 13 , and the second end 132 of the first heating core 13 is electrically connected to the second end 142 of the second heating core 14 .

In this embodiment, the heat generated by the heating structure 10 can be controlled by controlling the magnitude of the current flowing inside it. In a relatively narrow space, the first heating core 13 and the second heating core 14 are connected in series and powered by the first wire 16, so that operations such as cutting or closing can be basically achieved. Among them, the first heating core 13 and the second heating core 14 are arranged in parallel in the tubular member 11 and are located in a direction perpendicular to the axial direction C of the tubular member 11. The two are separated by an insulating structure 15, which can make the internal layout of the heating structure 10 reasonable, the structure simple, and the radial D dimension small, which can shorten the radial D dimension of the heating structure 10, and is conducive to the miniaturization design of the heating device 100.

Optionally, the tubular member 11, the first wire 16, and the first end of each heating core can be regarded as the proximal end of the heating structure 10, or the proximal end of the heating device 100, which is the end closer to the operator; the second end is regarded as the distal end of the heating structure 10, or the distal end of the heating device 100, which is also the end closer to the target tissue.

In some possible implementations, referring to FIG. 3 , a conductor structure is disposed at the inner wall 113 of the second end 112 of the closed tubular member 11 , and the second end 132 of the first heating core 13 and the second end 142 of the second heating core 14 are both in contact with or connected to the conductor structure.

In this embodiment, the first end 111 of the tubular member 11 is open, which is convenient for installing the heating core and the insulating structure 15 in the inner space of the tubular member 11. The second end 112 of the tubular member 11 is closed, and the second end 112 of the tubular member 11 is the end for heating the target tissue. The end 112 can prevent the inside of the tubular member 11 from contaminating the target tissue, and also prevent the target tissue from contaminating the inside of the tubular member 11 from contaminating each other, which makes it difficult to disinfect the tubular member 11. Furthermore, the inner wall 113 at the closed portion of the tubular member 11 is provided with a conductor structure, which enables the first heating core 13 and the second heating core 14 arranged in parallel to be electrically connected through the inner wall 113 when both are close to the inner wall 113 and in contact with the inner wall 113. The embodiment of the present application cleverly uses the structural features of the closed portion of the tubular member 11 to electrically connect the first heating core 13 and the second heating core 14, without the need to use other wires to electrically connect the first heating core 13 and the second heating core 14, which can make the internal structure of the heating structure 10 more streamlined, further reduce the components in the inner space of the tubular member 11, and thus reduce the radial D dimension of the heating structure 10.

Optionally, the inner wall 113 of the tubular member 11 itself is a conductor, and the second end 132 of the first heating core 13 and the second end 142 of the second heating core 14 are in contact or abutment with the inner wall 113 of the tubular member 11 , and the first heating core 13 and the second heating core 14 can be electrically connected through the inner wall 113 .

In some possible implementations, the first end of the first wire 16 is used to be electrically connected to the first electrode of the power source, and the second end of the first wire 16 is electrically connected to the first end 131 of the first heating core 13 .

The first end 141 of the second heating core 14 is electrically connected to the tubular member 11 , and the tubular member 11 is electrically connected to the second electrode of the power source.

In this embodiment, the tubular member 11 is also a conductor, and a circuit loop is formed between the power supply, the first wire 16, the first heating core 13, the conductor structure, the second heating core 14 and the tubular member 11. The power supply provides electrical energy to the first heating core 13 and the second heating core 14. The first heating core 13 and the second heating core 14 can convert the electrical energy into thermal energy, emit heat, and transfer the heat to the tubular member 11 as much as possible through the insulating heat-conducting layer 12, so that the outer surface of the tubular member 11 reaches the first design temperature, and the target tissue can be heated to separate it and the ends of the separated target tissue are closed.

Optionally, referring to FIG. 3 , the first end 141 of the second heating core 14 further has a bent portion, and the bent portion can be bent inside the fixing portion 17 to be electrically connected to the tubular member 11 .

In this embodiment, the first end 141 of the second heating core 14 is also connected to a bent portion (i.e., the dotted line portion in the fixing portion 17 of FIG. 3 ), which is equivalent to bending one end of the second heating core 14 to the inner circumferential wall of the tubular member 11. The inner circumferential wall is a conductor and can be led to a power source through the inner circumferential wall. For example, by cleverly using the tubular member 11 with an inner wall having conductive properties, the wiring of the heating structure 10 can be omitted.

In some possible implementations, the heating structure 10 further includes: a second wire.

The first end 141 of the second heating core 14 is used to be electrically connected to the second electrode of the power source through a second wire.

In this embodiment, a second wire may be provided to form a circuit loop among the power source, the first wire 16, the first heating core 13, the conductor structure, the second heating core 14 and the second wire, which is relatively simple to implement.

In some possible implementations, referring to FIG. 3 , the heating structure 10 further includes: a fixing portion 17 located inside the tubular member 11 .

The fixing portion 17 is located at one end of each of the first heating core 13 and the second heating core 14 away from the inner wall 113 and is fixedly connected to the inner peripheral wall of the tubular member 11 .

The first conductive wire 16 passes through the fixing portion 17 .

In this embodiment, the first heating core 13, the insulating structure 15 and the second heating core 14 can be regarded as being arranged in parallel with each other in the inner space of the tubular member 11, and their second ends are in contact or abutment with the inner wall 113, and the first ends are fixed by the fixing part 17, which plays a role of mutual restriction in the axial direction C, and the first heating core 13, the insulating structure 15 and the second heating core 14 are all fixed in the inner space of the tubular member 11, ensuring effective electrical connection between the first heating core 13 and the second heating core 14.

In some possible implementations, referring to FIG. 2 and FIG. 3 , the heating structure 10 further includes: a sealant 18 located in the first end 111 of the tubular member 11 .

The sealant 18 is located at one end of the fixing portion 17 away from the first heating core 13 and is fixedly connected to the fixing portion 17 . The circumferential surface of the sealant 18 is sealedly connected to the inner circumferential wall of the tubular member 11 to block the opening.

The first conductive wire 16 is passed through the sealant 18 .

In this embodiment, the sealant 18 is located at one end of the fixing part 17 away from the first heating core 13 and the second heating core 14, and can fix and seal the fixing part 17 to prevent foreign matter from entering the space inside the tube from the first end 111 of the tubular member 11 and contaminating the heating cores, the insulating structure 15 or the insulating thermal conductive layer 12 in the tube, thereby affecting the heating performance of the first heating core 13 and the second heating core 14, affecting the insulating performance of the insulating structure 15, or affecting the insulating thermal conductive performance of the insulating thermal conductive layer 12.

Optionally, the insulating heat-conducting layer 12 , the fixing portion 17 , the insulating structure 15 and the sealant 18 provided in the embodiment of the present application all have good high temperature resistance.

Optionally, one end of the first wire 16 is electrically connected to the first heating core 13, a portion of the first wire 16 is passed through the fixing portion 17 and the sealant 18, and extends from a side of the sealant 18 away from the fixing portion 17, and is further electrically connected to the first electrode of the power supply.

Optionally, the second wire can be connected with the first wire 16 at the fixing portion 17, pass through the fixing portion 17 and the sealant 18 simultaneously, and extend from the sealant 18 to be connected to the power source.

Optionally, the axial C area coated by the insulating heat-conducting layer 12 corresponds to the axial C size of the first heating core 13 and the second heating core 14, the fixing part 17 is directly connected to the inner circumferential wall not coated with the insulating heat-conducting layer 12, and the sealant 18 is also directly connected to the inner circumferential wall not coated with the insulating heat-conducting layer 12.

Based on the same inventive concept, an embodiment of the present application provides a heating device 100, as shown in FIG5 , the heating device 100 includes: any heating structure 10 provided in the first aspect above.

The heating device 100 provided in this embodiment includes any heating structure 10 provided in the above embodiments, and the implementation principle thereof is similar and will not be described in detail here. The heating device 100 provided in the embodiment of the present application has one end of the heating structure 10 that can be inserted into the wound to perform cutting, separation, closure, coagulation and other operations on the target tissue. The portion of the heating device 100 that is inserted into the wound is relatively small in volume and can be applied to scenes in narrow spaces.

In some possible implementations, operations such as cutting, separation, closure, and coagulation are medical procedures, and the heating device 100 is used to perform medical procedures on target tissue at the wound during the operation.

In some possible implementations, the heating device 100 further includes: a first clamping member 20 and a second clamping member 30, which are used to clamp the target tissue in a closed state.

The heating structure 10 is disposed on the clamping surface of the first clamping member 20 and is electrically connected to the second electrode of the power source through the first clamping member.

In this embodiment, the first clamping member 20 and the second clamping member 30 can be opened and closed to clamp the target tissue. The heating structure 10 is arranged on the clamping surface of the first clamping member 20, which is also called the closing surface. The target tissue can be heated during the clamping process, thereby achieving the cutting, separation, closure, coagulation and other operations of the target tissue. Among them, the first clamping member 20 also has a conductive property. The first clamping member 20 is welded to the tubular member 11 of the heating structure 10, which can make the second heating core 14, The tubular member 11, the first clamping member 20 and the power source form an electrical connection path.

Of course, the heating structure 10 can also be disposed on the clamping surface of the second clamping member 30 , depending on actual needs.

Optionally, the heating device 100 may be a surgical forceps having a heating structure 10 .

It can be understood that when the first clamp 20 and the second clamp 30 are in the open state, one end of the first clamp 20 and the second clamp 30 are closer and the other end is farther away, and a larger angle is formed between the first clamp 20 and the second clamp 30. When the first clamp 20 and the second clamp 30 are in the closed state, the angle between the first clamp 20 and the second clamp 30 is reduced, and the target tissue can be clamped. The closure here does not mean that the clamping surface of the first clamp 20 and the clamping surface of the second clamp 30 are in contact with each other, but means that the angle between the first clamp 20 and the second clamp 30 is reduced to clamp the target tissue.

In some possible implementations, the heating device 100 further includes: a rod portion 40 .

The first clamping member 20 and the second clamping member 30 are both connected to one end of the rod 40 .

The first end 111 of the tubular member 11 of the heating structure 10 is close to the rod portion 40 , and the first wire 16 of the heating structure 10 extends into the inner cavity of the rod portion 40 .

In this embodiment, the rod 40 can support the first clamp 20 and the second clamp 30, and the other end of the rod 40 is also provided with a control structure (such as a handle 50 integrated with the control structure), which can control the opening and closing between the first clamp 20 and the second clamp 30. In addition, the rod 40 is slender, which is also convenient for inserting into the body of the target object. The first wire 16 of the heating structure 10 extends outward through the rod 40 (can extend to the handle 50), and then connected to the power supply, so that the first wire 16 is placed in a closed environment, which can protect the first wire 16, thereby increasing the service life of the first wire 16 and ensuring the effective power supply of the heating structure 10.

In some possible implementations, as shown in FIG. 6 , the clamping surface of the first clamping member 20 of the heating device 100 has a groove, and the clamping surface of the second clamping member 30 has a clamping pad corresponding to the groove.

The tubular member 11 of the heating structure 10 is embedded in the groove, and the diameter of the tubular member 11 is greater than the depth of the groove.

In this embodiment, the heating structure 10 is embedded in the groove, and the groove limits the tubular member 11 on the clamping surface of the first clamping member 20. The diameter of the tubular member 11 is greater than the depth of the groove, which can ensure that the first clamping member 20 is The tubular member 11 is in effective contact with the target tissue when the first clamping member 20 and the second clamping member 30 are in a closed state. Furthermore, a clamping pad is provided on the clamping surface of the second clamping member 30. The clamping pad is made of a flexible material and has a certain elasticity. When the first clamping member 20 and the second clamping member 30 are in a closed state, the tubular member 11 is in contact with the clamping pad, which can protect and buffer the tubular member 11, and reduce the damage to the tubular member 11 caused by excessive friction caused by multiple openings and closings of the first clamping member 20 and the second clamping member 30.

By applying the embodiments of the present application, at least the following beneficial effects can be achieved:

1. The heating core and the insulating component in the heating structure 10 are both arranged in the inner space of the tubular member 11. The insulating component can be wrapped around the circumference of the heating core to isolate the heating core from the tubular member 11, so that the heating core and the inner circumferential wall of the tubular member 11 are insulated from each other. The heating structure 10 can generate heat and perform operations such as cutting, separation, and closing on the target tissue. The heating structure 10 is composed of the heating core, the insulating component, and the inner circumferential wall of the tubular member 11 along the radial direction D of the tubular member 11, so that the size of the heating structure 10 along the radial direction D is relatively compact and the overall volume is small, which is conducive to the miniaturized design of the heating device 100 and can be applied to a narrower working space, thereby enriching the application scenarios of the heating device 100.

2. The outer circumference of the heating core is in an arc shape. The insulating heat-conducting layer 12 is a film structure coated on the inner circumference of the tubular member 11, and its inner side is also in an arc shape. The outer circumference of the heating core is in contact with the inner side of the insulating heat-conducting layer 12, so that the heating core and the insulating heat-conducting layer 12 have a certain contact area, which can improve the heat conduction efficiency between the heating core and the insulating heat-conducting layer 12, and further improve the heating efficiency of the entire heating structure 10. Another part of the outer circumference of the heating core is in contact with the insulating structure 15, that is, the insulating heat-conducting layer 12 and the insulating structure 15 wrap the heating core inside, so that the outer circumference of the heating core does not contact other structures, ensuring that the heating cores can be isolated from each other, and also ensuring that the heating core will not cause leakage to the tubular member 11.

3. The heat generated by the heating structure 10 can be controlled by controlling the magnitude of the current flowing inside it. In a relatively narrow space, the first heating core 13 and the second heating core 14 are connected in series and powered by the first wire 16, which can basically achieve cutting or closing operations. The first heating core 13 and the second heating core 14 are arranged in parallel in the tubular member 11 and are located in a direction perpendicular to the axial direction C of the tubular member 11. The two are separated by an insulating structure 15, which can make the heating structure The internal layout of 10 is reasonable, the structure is simple, and the radial dimension D is small, which can shorten the radial dimension D of the heating structure 10 and is conducive to the miniaturized design of the heating device 100.

4. The first end 111 of the tubular member 11 is open, which is convenient for the installation of the heating core and the insulating structure 15 in the inner space of the tubular member 11. The second end 112 of the tubular member 11 is closed. The second end 112 of the tubular member 11 is the end for heating the target tissue. The closed second end 112 can prevent the inside of the tubular member 11 from contaminating the target tissue, and also prevent the target tissue and the inside of the tubular member 11 from contaminating each other, which makes it difficult to disinfect the tubular member 11. Furthermore, the inner wall 113 of the closed part of the tubular member 11 is provided with a conductor structure, which can make the first heating core 13 and the second heating core 14 arranged in parallel close to the inner wall 113 and in contact with the inner wall 113 to be electrically connected through the inner wall 113. The embodiment of the present application cleverly uses the structural features of the closed part of the tubular member 11 to electrically connect the first heating core 13 and the second heating core 14. There is no need to use other wires to electrically connect the first heating core 13 and the second heating core 14, which can make the internal structure of the heating structure 10 more streamlined, further reduce the components in the space inside the tubular member 11, and thus reduce the radial D dimension of the heating structure 10.

5. The first heating core 13, the insulating structure 15 and the second heating core 14 can be regarded as being arranged in parallel with each other in the inner space of the tubular member 11, with their second ends contacting or abutting against the inner wall 113, and their first ends being fixed by the fixing portion 17, which play a role of mutual restriction in the axial direction C, and the first heating core 13, the insulating structure 15 and the second heating core 14 are all fixed in the inner space of the tubular member 11, ensuring effective electrical connection between the first heating core 13 and the second heating core 14.

6. The sealant 18 is located at one end of the fixing part 17 away from the first heating core 13 and the second heating core 14, and can fix and seal the fixing part 17 to prevent foreign matter from entering the space inside the tube from the first end 111 of the tubular member 11 and contaminating the heating cores, the insulating structure 15 or the insulating thermal conductive layer 12 in the tube, thereby affecting the heating performance of the first heating core 13 and the second heating core 14, affecting the insulating performance of the insulating structure 15, or affecting the insulating thermal conductive performance of the insulating thermal conductive layer 12.

In the description of the present application, the directions or positional relationships indicated by the words "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are exemplary directions or positional relationships based on the accompanying drawings. They are for the convenience of describing or simplifying the embodiments of the present application, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as This is a limitation of this application.

The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

The above is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the technical concept of the scheme of the present application, other similar implementation methods based on the technical ideas of the present application also fall within the protection scope of the embodiments of the present application.

Claims

A heating structure, comprising:

Tubular parts;

An insulating component, disposed inside the tubular member;

and at least one heating core, which is arranged inside the insulating component.
The heating structure according to claim 1, wherein the first end of the tubular member is open and the second end is closed; the heating structure further comprises: a filling structure disposed at the inner wall of the second end of the tubular member;

The heating core has at least one bent portion, and at least two straight portions spaced apart from each other connected to the bent portion;

The filling structure is filled between the inner wall and the bending portion.
The heating structure according to claim 1 or 2, wherein the insulating assembly comprises: an insulating heat-conducting layer attached to the inner circumferential wall of the tubular member, and an insulating structure disposed in the insulating heat-conducting layer;

Along the circumference of the heating core, a portion of the outer circumference of the heating core is in contact with the insulating heat-conducting layer, and another portion of the outer circumference is in contact with the insulating structure.
The heating structure according to any one of claims 1 to 3, further comprising: a first wire; at least one of the heating cores comprises: a first heating core and a second heating core arranged in parallel and at intervals;

The first heating core, the insulating structure and the second heating core are arranged in sequence along a direction perpendicular to the axial direction of the tubular member;

The first end of the first wire is used to be electrically connected to the power supply of the heating device, the second end extends into the tubular member and is electrically connected to the first end of the first heating core, and the second end of the first heating core is electrically connected to the second end of the second heating core.
The heating structure according to claim 4, wherein a conductor structure is provided at the inner wall of the second end of the closed tubular member, and the second end of the first heating core and the second end of the second heating core are both in contact with or connected to the conductor structure.
The heating structure according to claim 5, wherein the first end of the first wire is used to be electrically connected to the first electrode of the power supply, and the second end of the first wire is electrically connected to the first end of the first heating core;

The first end of the second heating core is electrically connected to the tubular member, and the tubular member is electrically connected to the second electrode of the power source.
The heating structure according to claim 6, further comprising: a fixing portion located inside the tubular member;

The fixing portion is located at one end of the first heating core and the second heating core away from the inner wall and is fixedly connected to the inner circumferential wall of the tubular member;

The first conducting wire is passed through the fixing portion.
The heating structure according to claim 7, further comprising: a sealant located within the first end of the tubular member;

The sealant is located at one end of the fixing portion away from the first heating core and is fixedly connected to the fixing portion, and the circumferential surface of the sealant is sealedly connected to the inner circumferential wall of the tubular member to block the opening;

The first conductive wire is passed through the sealant.
A heating device, comprising: a heating structure as described in any one of claims 1 to 8.
The heating device according to claim 9, further comprising: a first clamping member and a second clamping member, for clamping the target tissue in a closed state;

The heating structure is arranged on the clamping surface of the first clamping member and is electrically connected to the second electrode of the power supply through the first clamping member.
The heating device according to claim 10, further comprising: a rod;

The first clamping member and the second clamping member are both connected to one end of the rod;

The first end of the tubular member of the heating structure is close to the rod portion, and the first wire of the heating structure extends into the inner cavity of the rod portion.
The heating device according to claim 10, wherein the clamping surface of the first clamping member has a groove, and the clamping surface of the second clamping member has a clamping pad corresponding to the groove;

The tubular member of the heating structure is embedded in the groove, and the diameter of the tubular member is greater than the depth of the groove.