A double-layer heating stamp card

Abstract

The present invention relates to the technical field of medical devices, and specifically to a double-layer heating stamp card, comprising a stamp card body, an insertion portion is arranged on the stamp card body; a double-layer pipe is arranged on the insertion portion, and the double-layer pipe includes an inner pipe and an outer pipe; the double-layer pipe can be filled with heating liquid and heat the lens inserted into the insertion portion, the end of the insertion portion for inserting into the patient's abdominal cavity is the bottom end of the insertion portion, and the heating liquid is used to flow into the area close to the bottom end of the inner pipe and flow out from the outer pipe. In the scheme of the present application, the temperature of the heating liquid in the inner pipe is relatively high, so that the lens is heated better and the possibility of blurring due to fogging of the lens is reduced; the higher temperature heating liquid on the inner pipe acts on the lens, further improving the heating effect on the lens; at the same time, the heating stamp card can reduce the probability of the abdominal cavity and the tissues in the abdominal cavity being scalded; at the same time, it can also avoid the situation of frequently taking the lens out of the stamp card and heating it again.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a double-layer heating stamp card. Background Art

[0002] Laparoscopic surgery has been widely used in clinical minimally invasive surgery. Common laparoscopic surgery usually requires 3-5 holes with a diameter of 5-12mm to be made on the abdominal wall. Cannulas are placed in the holes to insert endoscopes and various instruments for surgery. The poke card is a tool used in laparoscopic surgery. One end of the poke card is inserted into the skin, and the other end is exposed on the skin surface. The channel of the poke card itself can allow surgical instruments such as laparoscopic lenses, slender surgical forceps, electric hooks and ultrasonic scalpels to enter the abdominal cavity through the poke card for observation and removal of lesions.

[0003] During laparoscopic surgery, the use of energy instruments usually increases the temperature in the abdominal cavity, making the lens more likely to become blurred due to fogging. Currently, during surgery, a thermos cup is usually prepared on the operating table, and heated liquid is added to the cup. When the lens becomes blurred, the lens is immersed in the heated liquid to warm it up, thereby temporarily alleviating the problem of lens blurring.

[0004] Although the current methods and operations for solving the lens fogging problem during laparoscopic surgery are effective and beneficial to the operation of medical staff, the inventors found that there are still some deficiencies in the current measures for solving the lens fogging problem during the actual operation, specifically:

[0005] Energy instruments are used for severance and hemostasis, which are often critical steps. However, in this critical step, the use of energy instruments causes the temperature in the abdominal cavity to rise, and the lens in this critical step is easily blurred, making it difficult to observe the environment in the abdominal cavity during the critical step through the lens, which is not conducive to the operation. At the same time, frequently taking the lens out of the poking card and heating it will affect the entire operation process and prolong the operation time. If the part of the area on the poking card that extends into the patient's abdominal cavity is directly heated, the heated area on the poking card acts on the laparoscope lens and heats the laparoscope lens. However, when the poking card heats the lens, the tissue in the abdominal cavity may contact the poking card, causing the risk of scalding the tissue in the abdominal cavity. At the same time, if the laparoscope lens is taken out of the poking card for heating, the heat loss on the lens will be caused in the process of putting the heated lens into the poking card. If the poking card that has been inserted into the abdominal cavity is heated, the heated poking card heats the laparoscope lens. How to improve the heating effect of the poking card on the laparoscope lens is also a problem that needs to be solved urgently.

[0006] Therefore, based on the above problems, there is an urgent need to design a heating card that can heat the lens in the patient's abdominal cavity, which can not only improve the heating effect of the lens, but also reduce the risk of burns to abdominal tissue. Summary of the invention

[0007] The purpose of the present invention is to provide a heating card that can heat the lens in the patient's abdominal cavity, thereby improving the heating effect on the lens and reducing the risk of burns to abdominal tissue, in order to solve the above-mentioned shortcomings of the current measures taken to solve the lens fogging in actual operation.

[0008] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0009] A double-layer heating stamp card comprises a stamp card body, wherein the stamp card body is provided with an insertion portion, wherein the insertion portion is used to insert into the abdominal cavity and enable a lens to be inserted therein;

[0010] A double-layer pipe is provided on the extending portion, the double-layer pipe comprises an inner pipe and an outer pipe, the distance between the inner pipe and the central axis of the extending portion is closer than the distance between the outer pipe and the central axis of the extending portion;

[0011] The double-layer tube can be filled with heating liquid and heat the lens inserted into the insertion part. The end of the insertion part for inserting into the patient's abdominal cavity is the bottom end of the insertion part. The heating liquid is used to flow into the area on the inner tube close to the bottom end and flow out of the outer tube.

[0012] As a priority technical solution of the present application, a water inlet pipe is also provided on the extension portion, and the water inlet pipe is connected with the inner layer pipe. The water inlet pipe is used to supply the heating liquid to the double-layer pipe, and the portion where the water inlet pipe is connected with the inner layer pipe is located in the area inside the inner layer pipe close to the bottom end.

[0013] As a preferred technical solution of the present application, the portion where the inner layer pipe is connected to the outer layer pipe is a connecting portion, and the connecting portion is located on the portion of the double-layer pipe away from the bottom end.

[0014] As a preferred technical solution of the present application, a water outlet pipe is further provided on the extending portion, the water outlet pipe is connected to the outer layer pipe, and the water outlet pipe is used to discharge the heating liquid from the double-layer pipe.

[0015] As a preferred technical solution of the present application, the portion where the water outlet pipe is connected to the outer pipe is located in a region inside the outer pipe away from the bottom end.

[0016] As a preferred technical solution of the present application, the double-layer pipe is arranged inside the side wall of the extending portion.

[0017] As a preferred technical solution of the present application, the double-layer pipe is a cylindrical structure surrounding the central axis of the insertion portion.

[0018] As a preferred technical solution of the present application, the space in the inner pipe for the flow of the heating liquid is in a threaded shape surrounding the central axis of the insertion portion.

[0019] As a preferred technical solution of the present application, the water inlet pipe and / or the water outlet pipe is arranged inside the side wall of the extending portion.

[0020] As a preferred technical solution of the present application, the portion of the extending portion used for contacting and fixing with the patient's abdominal cavity during laparoscopic surgery is a contact segment, and the double-layer pipe is located in the area between the bottom end and the contact segment.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the scheme of the present application, the double-layer warming stamp card comprises a stamp card body, an insertion portion is arranged on the stamp card body, and a double-layer pipe is arranged on the insertion portion, the double-layer pipe comprises an inner pipe and an outer pipe, wherein the distance between the inner pipe and the central axis of the insertion portion is closer than the distance between the outer pipe and the central axis of the insertion portion. When the warming stamp card is used, the insertion portion is passed through the patient's abdominal wall and placed into the patient's abdominal cavity, and the lens is inserted into the insertion portion for medical staff to observe the surgical area in the abdominal cavity. By filling the double-layer pipe with heating liquid, the heating liquid in the present application can be hot water, and the The insertion part on the double-layer heating stamp has heat conductivity, so that the heating liquid flows into the inner layer pipe from the area near the bottom of the inner layer pipe, and then flows into the outer layer pipe and flows out from the outer layer pipe. In the process of the heating liquid flowing in the double-layer pipe, on the one hand, the heating liquid flows from the inner layer pipe to the outer layer pipe. Since the distance between the inner layer pipe and the axis of the insertion part is relatively close, the heating liquid in the inner layer pipe has a greater influence on the heating effect of the lens in the insertion part. When the heating liquid in the inner layer pipe exchanges heat with the lens, the temperature of the heating liquid in the inner layer pipe is relatively high, so that The lens is heated more effectively, and when the energy device is used in the abdominal cavity, the temperature difference between the lens and the abdominal cavity can be reduced, and the possibility of blurring of the lens due to fogging is reduced; at the same time, during the actual operation, the lens is located at a position closer to the bottom end of the insertion portion. In the present application, the heating liquid flows in from the area near the bottom end of the inner layer pipe, so that the temperature of the heating liquid near the bottom end of the inner layer pipe is higher, and then the heating liquid with a higher temperature on the inner layer pipe acts on the lens, thereby further improving the heating effect on the lens; and when the heating liquid flows out of the inner layer pipe, the heating liquid flows into the inner layer pipe. After flowing into the outer tube, the temperature of the heating liquid decreases, so that the temperature of the heating liquid in the outer tube is lower than that of the heating liquid in the inner tube. The outer tube is far away from the axis of the insertion part, and the outer tube mainly affects the area outside the side wall of the insertion part, so that when the patient's abdominal cavity and the tissue in the abdominal cavity contact the heating stamp card, the probability of the abdominal cavity and the tissue in the abdominal cavity being scalded can be reduced, thereby improving the safety performance of the heating stamp card when used; and avoiding the situation of frequently taking the lens out of the stamp card and then heating it, thereby speeding up the process of laparoscopic surgery;

[0023] A water inlet pipe is arranged on the extending portion, the water inlet pipe is connected with the inner pipe, and the portion where the water inlet pipe is connected with the inner pipe is located in the area near the bottom of the inner pipe, so that when the water inlet pipe supplies heating liquid to the double-layer pipe, the heating liquid flowing from the water inlet pipe into the inner pipe first reaches the area near the bottom of the inner pipe, so that the temperature of the heating liquid near the bottom of the inner pipe is higher, which is beneficial for the heating liquid with a higher temperature in the inner pipe to act on the lens, thereby improving the heating effect of the double-layer pipe and the heating liquid on the lens;

[0024] The portion where the inner layer pipe and the outer layer pipe are connected is the connecting portion, and the connecting portion is arranged at the portion of the double-layer pipe far from the end. Since the heating liquid flowing from the water inlet pipe into the inner layer pipe preferentially heats the portion of the insertion portion near the bottom, and since the connecting portion is located at the portion of the double-layer pipe far from the bottom, when the heating liquid flows in the inner layer pipe, it flows from the area near the bottom of the inner layer pipe to the area far from the bottom, so that the heating liquid in the double-layer pipe has a good heating effect on the portion near the bottom of the insertion portion. Since the lens is located at a position closer to the bottom, when the heating liquid heats the laparoscope, the lens on the laparoscope can have a higher temperature. While improving the heating effect on the lens, the area near the lens on the laparoscope can also be heated, which can improve the utilization rate of the heating liquid. Since the heated area is the lens on the laparoscope and the area near the lens, the temperature reduction speed of the lens after it has been heated and when the heating stops can be slowed down, thereby increasing the duration of the lens being at a higher temperature after being heated, thereby further improving the heating effect of the double-layer pipe on the lens.

[0025] A water outlet pipe is arranged on the extending portion, the water outlet pipe is connected with the outer pipe, and the portion where the water outlet pipe is connected with the outer pipe is located in the area far away from the bottom end of the outer pipe, so that the portion where the water outlet pipe is connected with the outer pipe is near the connecting portion. When the heating liquid flows from the inner pipe to the outer pipe through the connecting portion, the water outlet pipe preferentially discharges the heating liquid in the area near the connecting portion in the outer pipe. Since the temperature of the heating liquid near the connecting portion in the outer pipe is relatively high, the heating liquid with relatively high temperature will preferentially be discharged from the water outlet pipe, thereby further reducing the temperature of the heating liquid in the outer pipe, and further reducing the probability of the abdominal cavity tissue being scalded when it contacts the heating stamp.

[0026] The space for the flow of heating liquid in the inner pipe is set to be spiral, so that after the heating liquid enters the inner pipe from the water inlet pipe, the heating liquid flows in a spiral shape to the connecting part and then flows into the outer pipe. When the heating liquid flows in the inner pipe, the spiral setting of the flow space can increase the distance that each portion of heating liquid flows in the inner pipe, thereby improving the utilization rate of each portion of heating liquid for heating, and at the same time can increase the distance that each portion of heating liquid travels near the bottom of the inner pipe, which can further improve the heating effect on the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of one implementation method of a double-layer heated stamp card of the present application;

[0028] Figure 2 This is a schematic cross-sectional view of one embodiment of a double-layer heating stamp card of the present application;

[0029] Figure 3 A double-layer heating stamp card is applied for this purpose Figure 2 A schematic diagram of the enlarged structure of part A;

[0030] Figure 4 A double-layer heating stamp card is applied for this purpose Figure 2 A schematic diagram of the enlarged structure of part B;

[0031] Figure 5 This is a schematic cross-sectional view of one embodiment of a double-layer heating stamp card of the present application;

[0032] Figure 6 A double-layer heating stamp card is applied for this purpose Figure 5 A schematic diagram of the enlarged structure of the middle C part;

[0033] Figure 7 This is a schematic cross-sectional view of one embodiment of a double-layer heating stamp card of the present application;

[0034] Figure 8 A double-layer heating stamp card is applied for this purpose Figure 7 A schematic diagram of the enlarged structure of the D part;

[0035] Fig. 9 A double-layer heating stamp card is applied for this purpose Figure 7 A schematic diagram of the enlarged structure of part E in the middle;

[0036] Fig.10 This is a schematic cross-sectional view of one embodiment of a double-layer heating stamp card of the present application;

[0037] Fig.11 A double-layer heating stamp card is applied for this purpose Fig.10 A schematic diagram of the enlarged structure of the F part;

[0038] Markings in the figure: 1-poke card body, 2-protruding part, 3-double-layer pipe, 4-inner pipe, 5-outer pipe, 6-bottom end, 7-water inlet pipe, 8-connecting part, 9-water outlet pipe, 10-contact section. DETAILED DESCRIPTION

[0039] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

[0040] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the invention claimed for protection, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] Example 1: See Figure 1-6 As shown,

[0045] The present embodiment provides a double-layer warming stamp card, comprising a stamp card body 1, on which an insertion portion 2 is provided, and the insertion portion 2 is used to be inserted into the abdominal cavity and enable a lens to be inserted;

[0046] The insertion portion 2 is provided with a double-layer pipe 3, the double-layer pipe 3 includes an inner-layer pipe 4 and an outer-layer pipe 5, the distance between the inner-layer pipe 4 and the central axis of the insertion portion 2 is closer than the distance between the outer-layer pipe 5 and the central axis of the insertion portion 2;

[0047] The double-layer pipe 3 can be filled with heating liquid and heat the lens inserted into the insertion part 2. The end of the insertion part 2 for inserting into the patient's abdominal cavity is the bottom end 6 of the insertion part. The heating liquid is used to flow into the area close to the bottom end 6 on the inner pipe 4 and flow out of the outer pipe 5.

[0048] The double-layer warming stamp card comprises a stamp card body 1, on which an insertion portion 2 is arranged, and at the same time, a double-layer pipe 3 is arranged on the insertion portion 2, and the double-layer pipe 3 comprises an inner pipe 4 and an outer pipe 5, wherein the distance between the inner pipe 4 and the central axis of the insertion portion 2 is closer than the distance between the outer pipe 5 and the central axis of the insertion portion 2. When the warming stamp card is used, the insertion portion 2 is passed through the abdominal wall of the patient and placed into the abdominal cavity of the patient, and the lens is inserted into the insertion portion 2 for medical staff to observe the surgical area in the abdominal cavity. By filling the double-layer pipe 3 with heating liquid, the heating liquid in this application can be hot water, and at the same time, the double-layer warming stamp card is used for the medical staff to observe the surgical area in the abdominal cavity. The insertion part 2 on the temperature stamp card has heat conductivity, so that the heating liquid flows into the inner layer pipe 4 from the area near the bottom end 6 on the inner layer pipe 4, and then flows into the outer layer pipe 5 and flows out from the outer layer pipe 5. In the process of the heating liquid flowing in the double-layer pipe 3, on the one hand, the heating liquid flows from the inner layer pipe 4 to the outer layer pipe 5. Since the distance between the inner layer pipe 4 and the axis of the insertion part 2 is relatively close, the heating liquid in the inner layer pipe 4 has a greater influence on the heating effect of the lens in the insertion part 2. When the heating liquid in the inner layer pipe 4 exchanges heat with the lens, the temperature of the heating liquid in the inner layer pipe 4 is relatively high. The lens is heated more effectively, and the temperature difference between the lens and the abdominal cavity can be reduced when the energy device is used in the abdominal cavity, thereby reducing the possibility of blurring of the lens due to fogging. At the same time, in the actual operation process, the lens is located at a position close to the bottom end 6 of the insertion portion 2. In the present application, the heating liquid flows in from the area close to the bottom end 6 on the inner layer pipe 4, so that the temperature of the heating liquid close to the bottom end 6 on the inner layer pipe 4 is higher, and the heating liquid with a higher temperature on the inner layer pipe 4 acts on the lens, thereby further improving the heating effect on the lens. And when the heating liquid flows out of the inner layer pipe 4, the heating liquid flows in from the inner layer pipe 4. After the heated liquid flows into the outer pipe 5 from the inner pipe 4, the temperature of the heated liquid decreases, so that the temperature of the heated liquid in the outer pipe 5 is lower than that of the heated liquid in the inner pipe 4. Since the outer pipe 5 is far away from the axis of the insertion portion 2, the outer pipe 5 mainly affects the area outside the side wall of the insertion portion 2, so that when the patient's abdominal cavity and the tissues in the abdominal cavity contact the heating stamp card, the probability of the abdominal cavity and the tissues in the abdominal cavity being scalded can be reduced, thereby improving the safety performance of the heating stamp card when in use; and avoiding the situation of frequently taking the lens out of the stamp card and then heating it, thereby accelerating the progress of laparoscopic surgery.

[0049] As a preferred embodiment, on the basis of the above-mentioned method, further, a water inlet pipe 7 is provided on the extension portion 2, and the water inlet pipe 7 is connected with the inner layer pipe 4. The water inlet pipe 7 is used to supply the heating liquid to the double-layer pipe 3, and the portion where the water inlet pipe 7 is connected with the inner layer pipe 4 is located in the area inside the inner layer pipe 4 close to the bottom end 6.

[0050] A water inlet pipe 7 is arranged on the extending portion 2, and the water inlet pipe 7 is connected with the inner pipe 4, and the portion where the water inlet pipe 7 is connected with the inner pipe 4 is located in the area near the bottom end 6 in the inner pipe 4, so that when the water inlet pipe 7 supplies heating liquid to the double-layer pipe 3, the heating liquid flowing from the water inlet pipe 7 into the inner pipe 4 first reaches the area near the bottom end 6 in the inner pipe 4, so that the temperature of the heating liquid near the bottom end 6 on the inner pipe 4 is higher, which is beneficial for the heating liquid with a higher temperature in the inner pipe 4 to act on the lens, thereby improving the heating effect of the double-layer pipe 3 and the heating liquid on the lens.

[0051] As a preferred embodiment, based on the above-mentioned manner, further, the portion where the inner layer pipe 4 is connected to the outer layer pipe 5 is a connecting portion 8 , and the connecting portion 8 is located on the portion of the double-layer pipe 3 away from the bottom end 6 .

[0052] The portion where the inner layer pipe 4 and the outer layer pipe 5 are connected is the connecting portion 8, and the connecting portion 8 is arranged at a portion of the double layer pipe 3 far from the end portion, and because the heating liquid flowing from the water inlet pipe 7 into the inner layer pipe 4 preferentially heats the portion of the extension portion 2 near the bottom end 6, and because the connecting portion 8 is located at a portion of the double layer pipe 3 far from the bottom end 6, when the heating liquid flows in the inner layer pipe 4, it flows from the area near the bottom end 6 of the inner layer pipe 4 to the area far from the bottom end 6, so that the heating liquid in the double layer pipe 3 has a good heating effect on the portion of the extension portion 2 near the bottom end 6, and Since the lens is located closer to the bottom end 6, when the heating liquid heats the laparoscope, the lens on the laparoscope can have a higher temperature. While improving the heating effect on the lens, it can also heat the vicinity of the lens on the laparoscope, which can improve the utilization rate of the heating liquid. At the same time, since the heated area is the lens on the laparoscope and the area near the lens, the temperature drop rate of the lens after it has been heated and stops heating can be slowed down, thereby increasing the duration of the lens being at a higher temperature after being heated, thereby further improving the heating effect of the double-layer pipe 3 when heating the lens.

[0053] Example 2: See Figure 1-6 As shown,

[0054] On the basis of the technical solution of the first embodiment, further, a water outlet pipe 9 is provided on the extension portion 2 , and the water outlet pipe 9 is connected with the outer layer pipe 5 , and the water outlet pipe 9 is used to discharge the heating liquid from the double-layer pipe 3 .

[0055] As a preferred embodiment, based on the above-mentioned manner, further, the portion where the water outlet pipe 9 is connected to the outer pipe 5 is located in a region inside the outer pipe 5 away from the bottom end 6 .

[0056] A water outlet pipe 9 is arranged on the extending portion 2, and the water outlet pipe 9 is connected with the outer pipe 5. The portion where the water outlet pipe 9 is connected with the outer pipe 5 is located in the outer pipe 5 away from the bottom end 6, so that the portion where the water outlet pipe 9 is connected with the outer pipe 5 is near the connecting portion 8. When the heating liquid flows from the inner pipe 4 to the outer pipe 5 through the connecting portion 8, the water outlet pipe 9 preferentially discharges the heating liquid in the area near the connecting portion 8 in the outer pipe 5. Since the temperature of the heating liquid in the outer pipe 5 near the connecting portion 8 is relatively high, this portion of the heating liquid with a relatively high temperature will be preferentially discharged from the water outlet pipe 9, thereby further reducing the temperature of the heating liquid in the outer pipe 5, and further reducing the probability of the abdominal cavity tissue being scalded when it contacts the heating stamp.

[0057] As a preferred implementation, based on the above-mentioned implementation, further, the double-layer pipe 3 is arranged inside the side wall of the extending portion 2 .

[0058] The double-layer pipe 3 is arranged inside the side wall of the insertion part 2, thereby avoiding the situation where the double-layer pipe 3 is arranged outside the side wall of the insertion part 2 or inside the side wall of the insertion part 2. If the double-layer pipe 3 is arranged outside the side wall of the insertion part 2, it is easy for the tissues in the abdominal cavity and / or the abdominal wall tissues to directly contact the double-layer pipe 3, which may easily burn the tissues in the abdominal cavity and / or the abdominal wall tissues; and if the double-layer pipe 3 is arranged inside the side wall of the insertion part 2, it will affect the space inside the insertion part 2 for the lens to be inserted. In the present application, by arranging the double-layer pipe 3 inside the side wall of the insertion part 2, it is convenient for the lens to be inserted into the insertion part 2, and at the same time, the safety performance of the lens during the heating process is improved, which can further reduce the possibility of burns to the tissues in the abdominal cavity and / or the abdominal wall tissues.

[0059] As a preferred embodiment, on the basis of the above-mentioned manner, further, the double-layer pipe 3 is a cylindrical structure surrounding the central axis of the insertion portion 2 .

[0060] The double-layer pipe 3 is arranged as a cylindrical structure surrounding the central axis of the insertion part 2, so that when the lens is heated, the lens can be heated in multiple directions around the lens, thereby improving the heating effect when heating the lens, and further reducing the adverse effect on the clarity of the lens field of view when the temperature in the abdominal cavity increases due to the use of energy equipment.

[0061] Example 3: See Figure 7-11 As shown,

[0062] On the basis of the technical solution of the second embodiment, further, the space in the inner pipe 4 for the flow of the heating liquid is in a threaded shape surrounding the central axis of the insertion portion 2 .

[0063] The space for the flow of heating liquid in the inner pipe 4 is set to be spiral, so that after the heating liquid enters the inner pipe 4 from the water inlet pipe 7, the heating liquid flows into the connecting part 8 in a spiral shape and then flows into the outer pipe 5. When the heating liquid flows in the inner pipe 4, the spiral setting of the flow space can increase the distance that each portion of heating liquid flows in the inner pipe 4, thereby improving the utilization rate of each portion of heating liquid for heating, and at the same time can increase the distance that each portion of heating liquid travels near the bottom 6 on the inner pipe 4, which can further improve the heating effect on the lens.

[0064] As a preferred implementation, on the basis of the above-mentioned implementation, further, the water inlet pipe 7 and / or the water outlet pipe 9 is arranged inside the side wall of the extending portion 2 .

[0065] The water inlet pipe 7 and / or the water outlet pipe 9 are arranged inside the side wall of the insertion part 2, so that the water inlet pipe 7 and / or the water outlet pipe 9 are hidden on the insertion part 2, thereby avoiding the water inlet pipe 7 and / or the water outlet pipe 9 from blocking the lens when it is inserted into the insertion part 2, and at the same time avoiding burns to the tissue in the abdominal cavity when it directly contacts the water inlet pipe 7.

[0066] As a preferred embodiment, based on the above method, further, the portion on the insertion portion 2 that is used to contact and fix with the patient's abdominal cavity during laparoscopic surgery is a contact segment 10, and the double-layer pipe 3 is located in the area between the bottom end 6 and the contact segment 10.

[0067] The portion on the insertion portion 2 that is used to contact and fix with the patient's abdominal wall during laparoscopic surgery is the contact section 10. The heating pipe is arranged in the area between the bottom end 6 and the contact section 10, thereby avoiding burns to the abdominal wall caused by the double-layer pipe 3 heating the lens, thereby improving the safety performance of the heating stamp when in use.

[0068] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A double-layer heated stamp card, characterized in that: It comprises a poking card body, on which a protruding portion is arranged, and the protruding portion is used to protrude into the abdominal cavity and enable the lens to be protruded; A double-layer pipe is provided on the extending portion, the double-layer pipe comprises an inner pipe and an outer pipe, the distance between the inner pipe and the central axis of the extending portion is closer than the distance between the outer pipe and the central axis of the extending portion; The double-layer pipe can be filled with heating liquid to heat the lens inserted into the insertion part, the end of the insertion part for inserting into the patient's abdominal cavity is the bottom end of the insertion part, and the heating liquid is used to flow into the area of ​​the inner layer pipe close to the bottom end and flow out of the outer layer pipe; The extending portion is also provided with a water inlet pipe, the water inlet pipe is connected with the inner pipe, the water inlet pipe is used to supply the heating liquid to the double-layer pipe, and the part where the water inlet pipe is connected with the inner pipe is located in the area near the bottom end of the inner pipe; The portion where the inner layer pipe is connected to the outer layer pipe is a connecting portion, and the connecting portion is located on the part of the double layer pipe away from the bottom end; when the heating liquid flows in the inner layer pipe, it flows from the area on the inner layer pipe close to the bottom end to the area away from the bottom end.

2. The heated stamp card according to claim 1, characterized in that: The extending portion is also provided with a water outlet pipe, and the water outlet pipe is communicated with the outer layer pipe.

3. The heated stamp card according to claim 2, characterized in that: The portion where the water outlet pipe is connected to the outer pipe is located in a region of the outer pipe away from the bottom end.

4. The heated stamp card according to claim 1, characterized in that: The double-layer pipe is arranged inside the side wall of the extending portion.

5. The heated stamp card according to claim 1, characterized in that: The double-layer pipe is a cylindrical structure surrounding the central axis of the insertion portion.

6. The heated stamp card according to claim 4, characterized in that: The space in the inner layer pipe for the heating liquid to flow is in a threaded shape surrounding the central axis of the insertion portion.

7. The heated stamp card according to claim 3, characterized in that: The water inlet pipe and / or the water outlet pipe are arranged inside the side wall of the extending portion.

8. The heated stamp card according to any one of claims 1 to 7, characterized in that: The portion of the protruding portion that is used for contacting and fixing with the patient's abdominal cavity during laparoscopic surgery is the contact section, and the double-layer pipe is located in the area between the bottom end and the contact section.

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