A safe heating stamp card

Abstract

The present invention relates to the technical field of medical devices, and in particular to a safe heating stamp card, comprising a stamp card body, a protrusion portion provided on the stamp card body, the protrusion portion being used to protrude into the abdominal cavity and enable a lens to be protruded therein, a heating device provided on the protrusion portion, the heating device being used to heat the lens inserted into the protrusion portion, and the heating temperature of the area on the heating device close to the central axis of the protrusion portion is higher than the heating temperature of the area on the heating device far from the central axis of the protrusion portion. In the scheme of the present application, the heating effect of the heating device on the area in the protrusion portion for protruding the lens is better than the heating effect on the area outside the side wall of the protrusion portion, so that the temperature of the outermost part of the protrusion portion is lower, and when heating the lens, the lens can be heated in the abdominal cavity of the patient, thereby improving the clarity of the lens in a high temperature environment, improving the safety performance of the heating stamp card when in use, and reducing the burn damage to the abdominal tissue and abdominal wall of the patient.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a safety-type heated stamp card. Background Technology

[0002] Laparoscopic surgery is widely used in clinical minimally invasive surgery. Common laparoscopic procedures typically involve making 3-5 incisions (5-12 mm in diameter) in the abdominal wall. Cannulas are inserted into these incisions for inserting endoscopes and various instruments. A trocar is a tool used in laparoscopic surgery. One end of the trocar is inserted into the skin, while the other end protrudes from the skin surface. The trocar's structure allows surgical instruments such as laparoscope lenses, thin surgical forceps, electrocautery hooks, and ultrasonic scalpels to enter the abdominal cavity for observation and removal of lesions.

[0003] During laparoscopic surgery, the use of energy instruments often raises the temperature inside the abdominal cavity, making the scope more prone to fogging and blurring. Currently, a thermos containing a heating liquid is typically prepared on the operating table during surgery. When the scope becomes blurry, it is immersed in the heating liquid to warm it, thus temporarily alleviating the blurring problem.

[0004] While current methods and procedures for resolving lens fogging during laparoscopic surgery are effective and beneficial for medical staff, the inventors have discovered shortcomings in practical application. Specifically:

[0005] Energy devices are used for ligation and hemostasis, and their use is often crucial in critical steps. However, the use of energy devices in these critical steps raises the temperature inside the abdominal cavity, and the lens is prone to blurring during these steps, making it difficult to observe the intra-abdominal environment through the lens. This is detrimental to the surgical procedure. Furthermore, frequently removing the lens from the trocar and reheating it can affect the entire surgical process and prolong the operation time. Additionally, directly heating the portion of the trocar that extends into the patient's abdominal cavity can cause the heated area on the trocar to act on and heat the laparoscope lens. However, when the trocar heats the lens, it may cause the abdominal tissue to come into contact with the trocar, posing a risk of burns to the abdominal tissue.

[0006] Based on the above problems, there is an urgent need to design a heated puncture card that can heat the lens inside the abdominal cavity and reduce the risk of burns to the tissues inside the abdominal cavity. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of current measures for solving lens fogging in practical operation by providing a heated emboss that can heat the lens inside the abdominal cavity and reduce the risk of burns to abdominal tissues.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0009] A safety-type heated puncture card includes a puncture card body with an insertion part for inserting into the abdominal cavity and allowing a lens to be inserted. The insertion part is equipped with a heating device for heating the lens inserted into the insertion part. The heating temperature of the area of ​​the heating device near the central axis of the insertion part is higher than the heating temperature of the area of ​​the heating device away from the central axis of the insertion part.

[0010] As the preferred technical solution of this application, the heating device includes a double-layer pipe, which includes an inner pipe and an outer pipe. The distance between the inner pipe and the central axis of the extension part is closer than the distance between the outer pipe and the central axis of the extension part. The double-layer pipe can be filled with heating liquid to heat the lens extending into the extension part, and the heating liquid can flow in from the inner pipe and flow out from the outer pipe.

[0011] As a preferred technical solution of this application, the heating device further includes an inlet pipe and an outlet pipe. The inlet pipe is connected to the inner layer pipe, and the outlet pipe is connected to the outer layer pipe. The inlet pipe is used to supply the heating liquid to the double-layer pipe, and the outlet pipe is used to discharge the heating liquid from the double-layer pipe.

[0012] As the preferred technical solution of this application, the end of the insertion part for inserting into the patient's abdominal cavity is the bottom end of the insertion part, the part where the inner layer pipe and the outer layer pipe are connected is the connecting part, the connecting part is located on the double-layer pipe near the bottom end, and the part where the water inlet pipe is connected to the inner layer pipe is located on the inner layer pipe away from the bottom end.

[0013] As the preferred technical solution of this application, the portion of the water outlet pipe that communicates with the outer pipe is located on the outer pipe near the bottom end.

[0014] As the preferred technical solution of this application, the water inlet pipe and / or the water outlet pipe are disposed inside the side wall of the extension portion.

[0015] As the preferred technical solution of this application, the double-layer pipe is a cylindrical structure surrounding the central axis of the extension portion.

[0016] As the preferred technical solution of this application, the double-layer pipe is disposed inside the side wall of the extension portion.

[0017] As the preferred technical solution of this application, the cross-sectional area of ​​the outer pipe for the flow of the heating liquid is larger than the cross-sectional area of ​​the inner pipe for the flow of the heating liquid.

[0018] As the preferred technical solution of this application, the part of the extension portion that is used to contact and fix with the patient's abdominal cavity during laparoscopic surgery is the contact section, and the double-layer tube is located in the area between the end of the extension portion that is used to extend into the patient's abdominal cavity and the contact section.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In this application, the heated trocar includes a trocar body with an insertion portion and a heating device on the insertion portion. During laparoscopic surgery, the insertion portion is inserted into the patient's abdominal cavity, and the camera lens is inserted into the insertion portion to facilitate observation of the surgical area within the abdominal cavity. When energy devices are used on the surgical site, the temperature within the abdominal cavity rises. Because the insertion portion is equipped with a heating device, and the heating temperature of the area near the central axis of the insertion portion is higher than that of the area away from the central axis of the insertion portion, the heating effect of the heating device on the area within the insertion portion used for camera insertion is better than on the area outside the sidewall of the insertion portion. The heating effect ensures that the outermost temperature of the insertion part is lower when the heating device heats the lens, thereby reducing the degree of burns caused by the abdominal tissue coming into contact with the insertion part during lens heating, and even preventing burns caused by the abdominal tissue coming into contact with the insertion part. This allows the lens to be heated inside the patient's abdominal cavity when using the heating tamper, thereby improving the lens's clarity in a high-temperature environment. It also improves the safety of the heating tamper during use, reducing burn damage to the patient's abdominal tissue and abdominal wall. At the same time, it eliminates the need to remove the lens from the heating tamper for heating, improving the convenience of heating the lens and speeding up the surgical process of laparoscopic surgery.

[0021] The heating device includes a double-layered pipe system, comprising an inner pipe and an outer pipe. The distance from the inner pipe to the central axis of the insertion part is closer than the distance from the outer pipe to the central axis of the insertion part. In a specific embodiment, the double-layered pipe system can be filled with a heating liquid, which can be hot water. The heating liquid flows into the inner pipe and out of the outer pipe. After the heating liquid in the inner pipe heats the lens, its temperature decreases, and the cooled heating liquid flows to the outer pipe. The heating liquid in the outer pipe mainly affects the area outside the sidewall of the insertion part, thus reducing the contact temperature between the abdominal cavity tissue and the insertion part when the heating device heats the lens. In this application, if the double-layered pipe is located on the outer wall of the insertion part, corresponding to the insertion part... The area where the double-layered pipe is located refers to the tissue contact extension part in the abdominal cavity, which is actually the double-layered pipe on the tissue contact extension part in the abdominal cavity. This reduces the possibility of burns to the abdominal cavity tissue caused by the heating puncture. At the same time, the heating fluid in the double-layered pipe is divided into a higher temperature heating fluid and a lower temperature heating fluid. The higher temperature heating fluid is in the inner pipe and mainly acts on the lens to heat it, while the lower temperature heating fluid is in the outer pipe and mainly acts on the area outside the side wall of the extension part. Therefore, the use of this double-layered pipe not only facilitates the heating effect on the lens, but also reduces the possibility of burns to the abdominal cavity tissue caused by the extension part. At the same time, it improves the utilization rate of the heating fluid, makes reasonable use of the higher temperature heating fluid and the lower temperature heating fluid, and reduces the loss of energy in the heating fluid.

[0022] The heating device includes an inlet pipe and an outlet pipe. The inlet pipe is connected to the inner pipe, and the outlet pipe is connected to the outer pipe. When the heating device is used to heat the lens, the heating fluid flows into the double-layer pipe through the inlet pipe and then flows out through the outlet pipe. This realizes the supply and renewal of the heating fluid in the double-layer pipe, and thus can continuously supply heating fluid to the double-layer pipe, improving the heating effect of the heating device when heating the lens.

[0023] The end of the insertion part that extends into the patient's abdominal cavity is the bottom end of the insertion part. The part connecting the inner and outer tubes is the connecting part. The connecting part is located near the bottom end of the double tubes, and the part connecting the water inlet tube to the inner tube is located in the part of the inner tube away from the bottom end. This allows the heating fluid to flow from the part of the inner tube away from the bottom end to the part near the bottom end, giving the heating fluid a longer flow path in the inner tube. This increases the heating time when a single heating fluid heats the lens, and improves the heating utilization rate when the heating fluid is used to heat the lens. After heat exchange in the inner tube, the temperature of the heating fluid decreases, and it then flows into the outer tube from the connecting part. This allows the lower-temperature heating fluid in the outer tube to protect the tissues in the patient's abdominal cavity, reducing the chance of burns when the abdominal tissue comes into contact with the heated puncture card.

[0024] The part connecting the outlet pipe to the outer pipe is located on the outer pipe near the bottom. Since the connecting part is located on the double pipe near the bottom, the part connecting the outlet pipe to the outer pipe is near the connecting part. When the heating liquid flows into the outer pipe through the connecting part, the outlet pipe first discharges the heating liquid in the area near the connecting part in the outer pipe. This further reduces the temperature of the heating liquid flowing in the outer pipe, thereby further reducing the chance of abdominal tissue being burned when it comes into contact with the heated puncture card, and improving the safety performance of the heated puncture card.

[0025] The cross-sectional area for heating fluid flow in the outer pipe is larger than that in the inner pipe, resulting in a higher flow velocity of the heating fluid in the inner pipe compared to the outer pipe. This faster flow velocity in the inner pipe, compared to the outer pipe, accelerates the replacement of the heating fluid during continuous replenishment within the double-layered pipe system. This enhances the heating effect on the lens. Simultaneously, the larger cross-sectional area of ​​the heating fluid in the outer pipe further improves its effectiveness in reducing burns to the patient's abdominal tissues. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of one embodiment of a security heated stamp card according to this application;

[0027] Figure 2 This is a cross-sectional structural diagram of one embodiment of a security heated stamp card according to this application;

[0028] Figure 3 This application relates to a security heating stamp card. Figure 2 A magnified structural diagram of part A in the middle;

[0029] Figure 4 This application relates to a security heating stamp card. Figure 2 A magnified structural diagram of part B in the middle section;

[0030] Figure 5 This is a cross-sectional structural diagram of one embodiment of a security heated stamp card according to this application;

[0031] Figure 6 This application relates to a security heating stamp card. Figure 5 A magnified structural diagram of section C;

[0032] Figure 7 This application relates to a security heating stamp card. Figure 5 A magnified structural diagram of section D in the middle;

[0033] Figure 8 This is a partial cross-sectional view of one embodiment of a security heated stamp card according to this application;

[0034] The diagram shows: 1-Card body, 2-Insertion part, 3-Heating device, 4-Double-layer pipe, 5-Inner pipe, 6-Outer pipe, 7-Inlet pipe, 8-Outlet pipe, 9-Bottom end, 10-Connecting part, 11-Contact section. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Example 1: See Figure 1-7 As shown,

[0041] This embodiment provides a safety heated puncture card, including a puncture card body 1. The puncture card body 1 is provided with an insertion part 2, which is used to insert into the abdominal cavity and allow a lens to be inserted. The insertion part 2 is provided with a heating device 3, which is used to heat the lens inserted into the insertion part 2. The heating temperature of the area of ​​the heating device 3 near the central axis of the insertion part 2 is higher than the heating temperature of the area of ​​the heating device 3 away from the central axis of the insertion part 2.

[0042] The heated trocar includes a trocar body 1, an insertion part 2 on the trocar body 1, and a heating device 3 on the insertion part 2. During laparoscopic surgery, the insertion part 2 is inserted into the patient's abdominal cavity, and the camera lens is inserted into the insertion part 2 to facilitate observation of the surgical area within the abdominal cavity. In this application, the insertion part 2 on the double-layered trocar has thermal conductivity. When energy instruments are used on the surgical site, the temperature inside the abdominal cavity rises. Because the insertion part 2 is equipped with the heating device 3, and the heating temperature of the area of ​​the heating device 3 near the central axis of the insertion part 2 is higher than the heating temperature of the area of ​​the heating device 3 away from the central axis of the insertion part 2, the heating effect of the heating device 3 on the area within the insertion part 2 used for inserting the camera lens is superior. The heating effect on the area outside the side wall of the insertion part 2 is such that when the heating device 3 heats the lens, the temperature of the outermost part of the insertion part 2 is lower, thereby reducing the degree of burns caused by the abdominal tissue coming into contact with the insertion part 2 when the lens is heated, and even avoiding burns caused by the abdominal tissue coming into contact with the insertion part 2. This allows the lens to be heated inside the patient's abdominal cavity when using the heating tamper, thereby improving the clarity of the lens in a high-temperature environment. It also improves the safety performance of the heating tamper during use, reducing burn damage to the patient's abdominal tissue and abdominal wall. At the same time, it eliminates the need to remove the lens from the heating tamper for heating, improving the convenience of heating the lens and speeding up the surgical process of laparoscopic surgery.

[0043] As a preferred embodiment, based on the above method, the heating device 3 further includes a double-layer pipe 4, which includes an inner pipe 5 and an outer pipe 6. The distance of the inner pipe 5 from the central axis of the insertion part 2 is closer than the distance of the outer pipe 6 from the central axis of the insertion part 2. The double-layer pipe 4 can be filled with heating liquid to heat the lens inserted into the insertion part 2, and the heating liquid can flow in from the inner pipe 5 and flow out from the outer pipe 6.

[0044] The heating device 3 includes a double-layered pipe 4, which comprises an inner pipe 5 and an outer pipe 6. The distance from the inner pipe 5 to the central axis of the insertion part 2 is closer than the distance from the outer pipe 6 to the central axis of the insertion part 2. In a specific embodiment, the double-layered pipe 4 can be filled with heating liquid, which can be hot water. By filling the double-layered pipe 4 with heating liquid, the heating liquid can flow in from the inner pipe 5 and out from the outer pipe 6. After the heating liquid in the inner pipe 5 heats the lens, its temperature decreases, and the cooled heating liquid flows to the outer pipe 6. The heating liquid in the outer pipe 6 mainly affects the area outside the side wall of the insertion part 2, so that when the heating device 3 heats the lens, the contact temperature between the abdominal cavity tissue and the insertion part 2 is reduced. In this application, if the double-layered pipe 4 is located on the outer wall of the insertion part 2... The area where the double-layered pipe 4 on the insertion part 2 is located is considered to be the area where the tissue inside the abdominal cavity contacts the insertion part 2. This actually means that the tissue inside the abdominal cavity contacts the double-layered pipe 4 on the insertion part 2, thereby reducing the possibility of burns to the tissue inside the abdominal cavity caused by the heating puncture. At the same time, the heating liquid in the double-layered pipe 4 is divided into a higher temperature heating liquid and a lower temperature heating liquid. The higher temperature heating liquid is in the inner pipe 5 and mainly acts on the lens to heat it, while the lower temperature heating liquid is in the outer pipe 6 and mainly acts on the area outside the side wall of the insertion part 2. Therefore, the use of the double-layered pipe 4 not only facilitates the heating effect on the lens, but also reduces the possibility of burns to the tissue inside the abdominal cavity caused by the insertion part 2. At the same time, it improves the utilization rate of the heating liquid, makes reasonable use of the higher temperature heating liquid and the lower temperature heating liquid, and reduces the energy loss in the heating liquid.

[0045] In a preferred embodiment, based on the above method, the heating device 3 further includes an inlet pipe 7 and an outlet pipe 8. The inlet pipe 7 is connected to the inner pipe 5, and the outlet pipe 8 is connected to the outer pipe 6. The inlet pipe 7 is used to supply the heating liquid to the double-layer pipe 4, and the outlet pipe 8 is used to discharge the heating liquid from the double-layer pipe 4.

[0046] The heating device 3 includes an inlet pipe 7 and an outlet pipe 8. The inlet pipe 7 is connected to the inner pipe 5, and the outlet pipe 8 is connected to the outer pipe 6. When the lens is heated using the heating device 3, the heating liquid flows into the double-layer pipe 4 through the inlet pipe 7 and then flows out through the outlet pipe 8. This realizes the supply and renewal of the heating liquid in the double-layer pipe 4, thereby continuously supplying heating liquid to the double-layer pipe 4 and improving the heating effect of the heating device 3 when heating the lens.

[0047] In a preferred embodiment, based on the above method, the end of the insertion part 2 for inserting into the patient's abdominal cavity is the bottom end 9 of the insertion part 2, the part where the inner layer pipe 5 connects with the outer layer pipe 6 is the connecting part 10, the connecting part 10 is located on the double-layer pipe 4 near the bottom end 9, and the part where the water inlet pipe 7 connects with the inner layer pipe 5 is located on the inner layer pipe 5 away from the bottom end 9.

[0048] The end of the insertion part 2 that is inserted into the patient's abdominal cavity is the bottom end 9 of the insertion part. The part connecting the inner layer pipe 5 and the outer layer pipe 6 is the connecting part 10. The connecting part 10 is located on the part of the double-layer pipe 4 near the bottom end 9, and the part of the water inlet pipe 7 that connects to the inner layer pipe 5 is located on the part of the inner layer pipe 5 away from the bottom end 9. This allows the heating liquid to flow from the part of the inner layer pipe 5 away from the bottom end 9 to the part near the bottom end 9, giving the heating liquid a longer flow path in the inner layer pipe 5. This increases the action time of a single heating liquid when heating the lens, and improves the heating utilization rate of the heating liquid when heating the lens. After the heating liquid undergoes heat exchange in the inner layer pipe 5, its temperature decreases, and it then flows from the connecting part 10 into the outer layer pipe 6. This allows the lower-temperature heating liquid in the outer layer pipe 6 to protect the tissues in the patient's abdominal cavity, reducing the chance of burns when the abdominal tissue comes into contact with the heated puncture card.

[0049] As a preferred embodiment, based on the above method, the portion of the water outlet pipe 8 that communicates with the outer pipe 6 is located on the outer pipe 6 near the bottom end 9.

[0050] The portion connecting the outlet pipe 8 to the outer pipe 6 is located on the outer pipe 6 near its bottom 9. Since the connecting portion 10 is located on the double-layer pipe 4 near its bottom 9, the portion connecting the outlet pipe 8 to the outer pipe 6 is near the connecting portion 10. When the heating liquid flows into the outer pipe 6 through the connecting portion 10, the outlet pipe 8 preferentially discharges the heating liquid from the area near the connecting portion 10 within the outer pipe 6. This further reduces the temperature of the heating liquid flowing within the outer pipe 6, thereby further reducing the chance of burns to abdominal tissue when it comes into contact with the heated puncture card, thus improving the safety performance of the heated puncture card.

[0051] Example 2: See Figure 1-7 As shown,

[0052] Based on the technical solution of Embodiment 1, the water inlet pipe 7 and / or the water outlet pipe 8 are further disposed inside the side wall of the extension portion 2.

[0053] The water inlet pipe 7 and / or water outlet pipe 8 are arranged inside the side wall of the extension part 2, so that the water inlet pipe 7 and / or water outlet pipe 8 are hidden in the extension part 2, thereby avoiding the obstruction of the water inlet pipe 7 and / or water outlet pipe 8 when the lens is inserted into the extension part 2, and also avoiding burns when the abdominal tissues come into direct contact with the water inlet pipe 7.

[0054] As a preferred embodiment, based on the above method, the double-layer pipe 4 is further described as a cylindrical structure surrounding the central axis of the extension portion 2.

[0055] The double-layer pipe 4 is configured as a cylindrical structure surrounding the central axis of the extension part 2, so that the lens can be heated from multiple directions around the lens when it is heated, thereby improving the heating effect when heating the lens and further reducing the adverse effect on the clarity of the lens field of view caused by the increase in intra-abdominal temperature due to the use of energy devices.

[0056] As a preferred embodiment, based on the above method, the double-layer pipe 4 is further disposed inside the side wall of the extension portion 2.

[0057] By placing the double-layered pipe 4 inside the side wall of the insertion part 2, the previous methods of placing it on the outside or inside the side wall of the insertion part 2 are avoided. If the double-layered pipe 4 is placed on the outside of the side wall of the insertion part 2, the tissues in the abdominal cavity and / or abdominal wall tissues are likely to come into direct contact with the double-layered pipe 4, which could easily burn the tissues in the abdominal cavity and / or abdominal wall tissues. If the double-layered pipe 4 is placed on the inside of the side wall of the insertion part 2, it would affect the space in the insertion part 2 for lens insertion. In this application, by placing the double-layered pipe 4 inside the side wall of the insertion part 2, it is easier for the lens to be inserted into the insertion part 2, and the safety performance during the lens heating process is improved, which can further reduce the occurrence of burns to the tissues in the abdominal cavity and / or abdominal wall tissues.

[0058] Example 3: See Figure 1 and Figure 8 As shown,

[0059] Based on the technical solution of Embodiment 2, the cross-sectional area of ​​the outer pipe 6 for the flow of the heating liquid is further greater than the cross-sectional area of ​​the inner pipe 5 for the flow of the heating liquid.

[0060] The cross-sectional area for heating fluid flow in the outer pipe 6 is larger than that in the inner pipe 5, resulting in a higher flow velocity of the heating fluid in the inner pipe 5 compared to that in the outer pipe 6. Given the faster flow velocity of the heating fluid in the inner pipe 5 compared to the outer pipe 6, the heating fluid in the inner pipe 5 is faster. This allows for faster replacement of the heating fluid in the inner pipe 5 during continuous replenishment within the double-layer pipe 4, thereby enhancing the heating effect on the lens. Simultaneously, the larger cross-sectional area of ​​the heating fluid in the outer pipe 6 improves its effectiveness in reducing burns to the patient's abdominal tissues.

[0061] As a preferred embodiment, based on the above method, the portion of the extension part 2 that is used to contact and fix with the patient's abdominal cavity during laparoscopic surgery is a contact section 11, and the double-layer tube 4 is located in the area between the end of the extension part 2 that is used to extend into the patient's abdominal cavity and the contact section 11.

[0062] The part of the insertion section 2 that is used to contact and fix with the patient's abdominal wall during laparoscopic surgery is a connecting section. The heating pipe is located in the area between the end of the insertion section 2 that is used to enter the patient's abdominal cavity and the contact section 11, thereby avoiding burns to the abdominal wall when the double-layer pipe 4 heats the lens, thus improving the safety performance of the heated puncture card during use.

[0063] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. A safe heating stamp card, characterized by: The device comprises a poking card body, wherein the poking card body is provided with an insertion portion, wherein the insertion portion is used to be inserted into the abdominal cavity and enable a lens to be inserted therein, wherein a heating device is provided on the insertion portion, wherein the heating device is used to heat the lens inserted into the insertion portion, and the heating temperature of the area of ​​the heating device close to the central axis of the insertion portion is higher than the heating temperature of the area of ​​the heating device far from the central axis of the insertion portion; The heating device comprises a double-layer pipe, the double-layer pipe comprises an inner pipe and an outer pipe, the inner pipe is closer to the central axis of the insertion portion than the outer pipe, the double-layer pipe can be filled with heating liquid and heat the lens inserted into the insertion portion, and the heating liquid can flow into the inner pipe and flow out of the outer pipe; The heating device further comprises a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is connected to the inner pipe, the water outlet pipe is connected to the outer pipe, and the water inlet pipe is used to supply the heating liquid to the double-layer pipe, and the water outlet pipe is used to discharge the heating liquid from the double-layer pipe; The end of the insertion portion for inserting into the abdominal cavity of the patient is the bottom end of the insertion portion, the portion where the inner layer pipe and the outer layer pipe are connected is the connecting portion, the connecting portion is located at the portion of the double layer pipe close to the bottom end, and the portion where the water inlet pipe is connected with the inner layer pipe is located at the portion of the inner layer pipe far from the bottom end; The portion of the water outlet pipe that is connected to the outer pipe is located on the outer pipe near the bottom end; when the heating liquid flows into the outer pipe through the connecting portion, the water outlet pipe preferentially discharges the heating liquid in the area of ​​the outer pipe near the connecting portion.

2. The heated stamp card according to claim 1, characterized in that: The water inlet pipe and / or the water outlet pipe are arranged inside the side wall of the extending portion.

3. 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.

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 cross-sectional area in the outer layer pipe for the heating liquid to flow is larger than the cross-sectional area in the inner layer pipe for the heating liquid to flow.

6. The heated stamp card according to claim 1, characterized in that: The portion of the insertion part 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 end of the insertion part used for inserting into the patient's abdominal cavity and the contact section.

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