Omnibearing throat body heat preservation device
By clamping the thermal insulation tube on the inner wall of the larynx with the upper and lower housings, and using coolant under hydraulic pressure to achieve all-round coverage, the problem of uneven thermal insulation of the larynx is solved, achieving efficient low-temperature preservation of the larynx and reducing ischemia-reperfusion injury.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN FARSOON TURING ADDITIVE MFG TECH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-17
AI Technical Summary
In current laryngeal transplant surgeries, traditional ice packs cannot provide full coverage of the larynx, and the gas cooling method results in slow cooling speed and poor heat preservation effect, which affects the ischemia-reperfusion injury of laryngeal tissues.
The upper and lower housings clamp the heat-insulating tube inside the throat, and a sealed containment cavity is constructed using a thermally conductive elastic membrane and a water-cooled cavity. The throat is fully covered and its temperature is controlled by the coolant under hydraulic pressure.
It achieves comprehensive cold storage and insulation of the larynx, avoids tissue compression and deformation, ensures low-temperature preservation of laryngeal tissue, and reduces the risk of ischemia-reperfusion injury.
Smart Images

Figure CN224125093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment for laryngeal transplantation surgery, specifically, it is a comprehensive laryngeal body warming device. Background Technology
[0002] Laryngeal transplantation is a complex surgical procedure used to treat laryngeal diseases or injuries, with the primary goal of restoring the patient's speech and breathing functions. Ischemia-reperfusion injury is a common complication during laryngeal transplantation; it refers to damage that occurs when blood supply to a tissue or organ is restored after a period of ischemia (insufficient blood supply). Maintaining a low temperature in the transplanted larynx is crucial to minimizing this damage.
[0003] Hypothermia can reduce tissue metabolic rate, decrease oxygen demand, and prolong ischemia tolerance time. However, in current laryngeal transplant surgeries, surgeons typically use homemade ice packs to achieve the hypothermic environment. Using traditional ice packs only covers part of the larynx, resulting in poor adhesion and an inability to precisely control temperature. This makes the laryngeal tissue susceptible to ischemia-reperfusion injury, and the frequent changing of ice packs can disrupt the entire transplant surgery process.
[0004] For example, the existing patent CN118235756A discloses a throat insulation device, which can initially provide comprehensive cooling and coverage to the throat. However, the upper and lower housings rely on air pressure to clamp the silicone pad. Cooling is achieved by cooling gas to insulate the throat. Due to the poor thermal conductivity of gas, the cooling rate of the upper and lower housings is slow, resulting in poor insulation. Utility Model Content
[0005] The purpose of this invention is to provide a comprehensive laryngeal body warming device to achieve comprehensive coverage and efficient low-temperature preservation of transplanted larynx.
[0006] To achieve the above objectives, the present invention employs the following technical means:
[0007] A comprehensive laryngeal body heat preservation device, comprising:
[0008] The upper housing has an open bottom surface covered with a first thermally conductive elastic membrane. The upper housing has a first water-cooling cavity inside, and the side wall of the upper housing is connected to a first liquid inlet pipe and a first liquid outlet pipe.
[0009] The lower housing has an open top surface covered with a second thermally conductive elastic membrane. The lower housing has a second water-cooling cavity inside, and the side wall of the lower housing is connected to a second liquid inlet pipe and a second liquid outlet pipe.
[0010] The inner wall insulation tube of the larynx has a third water-cooling chamber inside, and the end face of the inner wall insulation tube of the larynx is connected to a third liquid inlet tube and a third liquid outlet tube.
[0011] The upper box and the lower box abut against each other and clamp each other, forming a receiving cavity by the clamping structure of the first thermally conductive elastic membrane and the second thermally conductive elastic membrane. The heat-insulating tube on the inner wall of the throat is clamped and disposed between the upper box and the lower box and located in the receiving cavity.
[0012] The upper box and the lower box are sealed together, so that the receiving cavity is in a sealed state. The side wall of the upper box or the lower box is provided with an air extraction pipe that communicates with the receiving cavity.
[0013] Preferably, the side walls of the upper box and the lower box are respectively constructed with a first arc-shaped groove and a second arc-shaped groove for embedding the heat-insulating tube of the inner wall of the throat. The first arc-shaped groove and the second arc-shaped groove are spliced together to form a complete circular through groove for inserting the heat-insulating tube of the inner wall of the throat. The first thermally conductive elastic film is disposed on the upper plane above the top of the first arc-shaped groove, and the second thermally conductive elastic film is disposed on the lower plane below the bottom of the second arc-shaped groove.
[0014] Furthermore, the heat-insulating tube on the inner wall of the throat includes a positioning plate that is positioned and installed in the circular through groove. A sealed heat-conducting tube is installed on one side of the positioning plate. The sealed heat-conducting tube is located in the receiving cavity. The third liquid inlet tube and the third liquid outlet tube are respectively located on the positioning plate and communicate with the inner cavity of the sealed heat-conducting tube.
[0015] Furthermore, the third liquid inlet pipe is coaxially arranged with the positioning plate and the sealing heat-conducting pipe, and there are two third liquid outlet pipes, which are symmetrically arranged on both sides of the third liquid inlet pipe.
[0016] Furthermore, the inner walls of the first arc-shaped groove and the second arc-shaped groove are respectively provided with a first annular groove and a second annular groove on the same axis. The first annular groove and the second annular groove are staggered. The outer edge of the positioning disk is respectively provided with a first annular strip and a second annular strip on the same axis corresponding to the first annular groove and the second annular groove.
[0017] Furthermore, flow regulating valves are installed on the first and second liquid outlet pipes respectively.
[0018] This utility model has the following beneficial effects during use:
[0019] The inner wall insulation tube of the throat is inserted into the throat tube to be refrigerated. Then, the inner wall insulation tube is clamped and assembled between the upper and lower housings, allowing the throat tube to remain stationary within the receiving cavity. With the receiving cavity sealed, a vacuum is created by connecting the vacuum pipe to a vacuum pump. Then, circulating coolant is pumped into the upper and lower housings through the first and second inlet pipes, respectively. Using the coolant filling the upper and lower housings, under hydraulic pressure, the first and second thermally conductive elastic membranes completely cover the throat tube, and the cooling effect of the coolant insulates the outer wall of the throat tube. Simultaneously, even after the throat tube is compressed and covered under hydraulic pressure, the inner wall of the throat tube is supported by the inner wall insulation tube, preventing severe compression deformation and ensuring that the inner wall of the throat tube remains tightly against the outer wall of the inner wall insulation tube under hydraulic pressure. In this way, coolant is pumped into the insulation tube inside the throat through the third inlet pipe. The insulation tube adheres closely to the inner wall of the throat, providing refrigeration and insulation. This completely covers the throat with coolant, achieving comprehensive refrigeration and insulation both inside and out. Furthermore, the temperature of the insulation can be controlled by adjusting the coolant temperature. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model.
[0021] Figure 2 This is a schematic diagram of the exploded structure of this utility model.
[0022] Figure 3 for Figure 1 A side view structural diagram.
[0023] Figure 4 for Figure 3 A schematic diagram of the AA cross-sectional structure.
[0024] Figure 5 This is a schematic diagram of the structure of the heat-insulating tube on the inner wall of the throat of this utility model.
[0025] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.
[0026] Among them, 1-upper box, 2-first thermally conductive elastic membrane, 3-first water-cooling cavity, 4-first liquid inlet pipe, 5-first liquid outlet pipe, 6-lower box, 7-second thermally conductive elastic membrane, 8-second water-cooling cavity, 9-second liquid inlet pipe, 10-second liquid outlet pipe, 11-heat insulation pipe on the inner wall of the throat, 12-third water-cooling cavity, 13-third liquid inlet pipe, 14-third liquid outlet pipe, 15-accommodating cavity, 16-extraction pipe, 17-first arc-shaped groove, 18-second arc-shaped groove, 19-positioning plate, 20-sealed heat-conducting pipe, 21-first annular groove, 22-second annular groove, 23-first annular bar, 24-second annular bar, 25-flow regulating valve. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0029] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.
[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] Please refer to Figures 1 to 6 As shown, an all-around throat warming device includes:
[0034] The upper housing 1 has an open bottom surface covered with a first thermally conductive elastic membrane 2. The upper housing 1 has a first water-cooling cavity 3 inside. The side wall of the upper housing 1 is connected to a first liquid inlet pipe 4 and a first liquid outlet pipe 5.
[0035] The lower housing 6 has an open top surface covered with a second thermally conductive elastic membrane 7. The lower housing 6 has a second water-cooling cavity 8 inside. The side wall of the lower housing 6 is connected to a second liquid inlet pipe 9 and a second liquid outlet pipe 10.
[0036] The larynx inner wall insulation tube 11 has a third water-cooled chamber 12 inside, and the end face of the larynx inner wall insulation tube 11 is connected to a third liquid inlet tube 13 and a third liquid outlet tube 14.
[0037] The upper box 1 and the lower box 6 are abutted and clamped together, and the first thermally conductive elastic membrane 2 and the second thermally conductive elastic membrane 7 are used to form a receiving cavity 15. The heat-insulating tube 11 of the inner wall of the throat is clamped and disposed between the upper box 1 and the lower box 6 and located in the receiving cavity 15.
[0038] The upper box 1 and the lower box 6 are sealed together, so that the receiving cavity 15 is in a sealed state. The side wall of the upper box 1 or the lower box 6 is provided with an exhaust pipe 16 that communicates with the receiving cavity 15.
[0039] In this way, the inner wall insulation tube 11 of the throat is inserted into the throat to be refrigerated, and then the inner wall insulation tube 11 is clamped and assembled between the upper box 1 and the lower box 6, allowing the throat to remain stationary in the receiving cavity 15. With the receiving cavity 15 in a sealed state, the receiving cavity 15 is evacuated to a vacuum state by connecting the vacuum pipe 16 to the vacuum pump. Then, circulating coolant is blown into the upper box 1 and the lower box 6 through the first liquid inlet pipe 4 and the second liquid inlet pipe 9 respectively. Using the coolant filling the upper box 1 and the lower box 6, the first thermally conductive elastic membrane 2 and the second thermally conductive elastic membrane 7 completely cover the throat under the action of hydraulic pressure, and the outer wall of the throat is insulated by the cooling effect of the coolant. At the same time, even after the throat is compressed and covered under the action of hydraulic pressure, the inner wall of the throat can be supported by the inner wall insulation tube 11, avoiding severe compression deformation of the throat, while allowing the inner wall of the throat to be tightly attached to the outer wall of the inner wall insulation tube 11 under the action of hydraulic pressure. In this way, coolant is pumped into the insulation tube 11 inside the throat through the third inlet pipe 13. The insulation tube 11 adheres closely to the inner wall of the throat, providing refrigeration and insulation. This completely covers the throat with coolant, achieving comprehensive refrigeration and insulation both inside and out. Furthermore, the temperature of the insulation can be controlled by adjusting the coolant temperature.
[0040] Furthermore, to facilitate the installation of the larynx inner wall insulation tube 11, the side walls of the upper box 1 and the lower box 6 are respectively constructed with a first arc-shaped groove 17 and a second arc-shaped groove 18 for embedding the larynx inner wall insulation tube 11. The first arc-shaped groove 17 and the second arc-shaped groove 18 are spliced together to form a complete circular through groove for inserting the larynx inner wall insulation tube 11. The first thermally conductive elastic membrane 2 is disposed on the upper plane above the top of the first arc-shaped groove 17, and the second thermally conductive elastic membrane 7 is disposed on the lower plane below the bottom of the second arc-shaped groove 18.
[0041] Furthermore, the heat-insulating tube 11 on the inner wall of the throat includes a positioning plate 19 positioned and installed in the circular through groove. A sealed heat-conducting tube 20 is installed on one side of the positioning plate 19. The sealed heat-conducting tube 20 is located in the receiving cavity 15. The third liquid inlet tube 13 and the third liquid outlet tube 14 are respectively located on the positioning plate 19 and communicate with the inner cavity of the sealed heat-conducting tube 20.
[0042] Specifically, the third liquid inlet pipe 13 is coaxially arranged with the positioning plate 19 and the sealed heat conduction pipe 20, and there are two third liquid outlet pipes 14, which are symmetrically arranged on both sides of the third liquid inlet pipe 13.
[0043] In this way, the position setting of the third liquid outlet pipe 14 and the third liquid inlet pipe 13 can ensure the uniform flow of coolant in the inner cavity of the sealed heat conduction pipe 20, and ensure uniform cooling of the inner wall of the throat pipe.
[0044] In addition, to ensure more stable positioning of the thermal insulation tube 11 within the circular groove and prevent it from sliding along the axial direction, the inner walls of the first arc-shaped groove 17 and the second arc-shaped groove 18 are respectively provided with a first annular groove 21 and a second annular groove 22 coaxially. The first annular groove 21 and the second annular groove 22 are staggered. The outer edge of the positioning disk 19 is respectively provided with a first annular strip 23 and a second annular strip 24 coaxially corresponding to the first annular groove 21 and the second annular groove 22.
[0045] Furthermore, the axial direction of the laryngeal inner wall insulation tube 11 is limited by the snap-fit engagement of the first annular groove 21 with the first replacement strip and the snap-fit engagement of the second annular groove 22 with the second replacement strip. Moreover, the staggered arrangement of the first annular groove 21 and the second annular groove 22 also allows for the determination of the correct installation orientation of the laryngeal inner wall insulation tube 11, preventing it from being installed backwards, thus facilitating the doctor's directional handling of the tube.
[0046] Furthermore, flow regulating valves 25 are respectively installed on the first liquid outlet pipe 5 and the second liquid outlet pipe 10.
[0047] In this way, the inflow and outflow rates of coolant in the upper housing 1 and lower housing 6 can be controlled by adjusting the flow regulating valve 25. This allows for a rapid increase in pressure in either housing after the initial outflow rate is reduced. Furthermore, the liquid pressure within the upper housing 1 or lower housing 6 can be adjusted by regulating the outflow rate, thus regulating the pressure holding state of the hose.
[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A device for keeping a whole throat warm, characterized in that, include: The upper box (1) has an open bottom surface covered with a first thermally conductive elastic membrane (2). The upper box (1) has a first water-cooling cavity (3) inside. The side wall of the upper box (1) is connected to a first liquid inlet pipe (4) and a first liquid outlet pipe (5). The lower housing (6) has an open top surface covered with a second thermally conductive elastic membrane (7). The lower housing (6) has a second water-cooling cavity (8) inside. The side wall of the lower housing (6) is connected to a second liquid inlet pipe (9) and a second liquid outlet pipe (10). The larynx inner wall insulation tube (11) has a third water-cooled chamber (12) inside. The end face of the larynx inner wall insulation tube (11) is connected to a third liquid inlet tube (13) and a third liquid outlet tube (14). The upper box (1) and the lower box (6) are abutted and clamped together, and the first thermally conductive elastic membrane (2) and the second thermally conductive elastic membrane (7) are used to form a receiving cavity (15). The heat-insulating tube (11) on the inner wall of the throat is clamped and disposed between the upper box (1) and the lower box (6) and located in the receiving cavity (15). The upper box (1) and the lower box (6) are sealed together. The side wall of the upper box (1) or the lower box (6) is provided with an exhaust pipe (16) that communicates with the receiving cavity (15).
2. A full-throat body warming device according to claim 1, characterized in that, The upper box (1) and the lower box (6) are respectively constructed with a first arc groove (17) and a second arc groove (18) for embedding the heat insulation tube (11) of the inner wall of the throat. The first arc groove (17) and the second arc groove (18) are spliced together to form a complete circular through groove for inserting the heat insulation tube (11) of the inner wall of the throat. The first thermally conductive elastic membrane (2) is located on the upper plane of the top of the first arc groove (17), and the second thermally conductive elastic membrane (7) is located on the lower plane of the bottom of the second arc groove (18).
3. A full-throat body warming device according to claim 2, wherein The heat insulation tube (11) inside the throat includes a positioning plate (19) positioned and installed in the circular through groove. A sealed heat-conducting tube (20) is installed on one side of the positioning plate (19). The sealed heat-conducting tube (20) is located in the receiving cavity (15). The third liquid inlet tube (13) and the third liquid outlet tube (14) are respectively located on the positioning plate (19) and communicate with the sealed heat-conducting tube (20) as the inner cavity of the third water-cooling cavity (12).
4. A full range laryngeal body warming device according to claim 3, characterized in that The third liquid inlet pipe (13) is coaxially arranged with the positioning plate (19) and the sealing heat conduction pipe (20). There are two third liquid outlet pipes (14), which are symmetrically arranged on both sides of the third liquid inlet pipe (13).
5. A full-throat body warming device according to claim 3, wherein The inner walls of the first arc groove (17) and the second arc groove (18) are respectively provided with a first annular groove (21) and a second annular groove (22) on the same axis. The first annular groove (21) and the second annular groove (22) are staggered. The outer edge of the positioning disk (19) is respectively provided with a first annular bar (23) and a second annular bar (24) on the same axis corresponding to the first annular groove (21) and the second annular groove (22).
6. A full-throat body warming device according to claim 1, wherein A flow regulating valve (25) is installed on the first outlet pipe (5) and the second outlet pipe (10).