PTFE anti-adhesion coating for electrotome

Abstract

This utility model relates to the field of coating and insulation technology, and discloses an anti-adhesion PTFE coating and insulation device for electrosurgical knives. It includes a lower tank and an insulation jacket installed at the outer end of the lower tank. An upper shell is installed at the upper end of the lower tank, and an inner liner is provided inside the lower tank. An insulation cavity is formed inside the lower tank, and a gear ring is rotatably engaged at the upper end of the insulation cavity. Several inclined guide rods are fixedly connected inside the gear ring. Limiting slide rods are fixedly connected to the bottom end of the silicone scraper. An L-shaped support plate is fixedly connected to the upper end of the lower tank. A servo motor is fixedly connected inside the support plate. The output end of the servo motor is fixedly connected to a drive shaft via a coupling. A drive gear meshing with the gear ring is fixedly connected to the top end of the drive shaft. A connecting pipe is embedded at the bottom edge of the inner liner. This utility model uses a servo motor to drive the gear ring to rotate the inclined guide rods, forming a dynamic stirring and guiding effect, making the temperature distribution inside the insulation cavity more uniform and ensuring stable electrosurgical knives coating treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of coating insulation, in particular to an anti-adhesion PTFE coating insulation device for an electric scalpel. Background Technique

[0002] During medical surgery, when the metal blade tip of an electric scalpel cuts and coagulates, blood proteins and tissue debris are easily cured and adhered at high temperatures, resulting in a decrease in the sharpness of the blade tip and a reduction in cutting efficiency. In addition, due to the residual barrier to heat conduction, the local temperature of the blade tip will abnormally increase, causing tissue carbonization and thermal damage. Existing electric scalpels are either designed with exposed metal or the ordinary coatings applied have weak bonding force with the blade tip and are easily peeled off after high-temperature disinfection, cutting and friction, and cannot provide persistent anti-sticking. Therefore, a PTFE coating is studied to achieve the anti-adhesion effect. A modified PTFE coating with a thickness of 5 - 15 μm is coated on the surface of the metal blade tip of the electric scalpel. The coating enhances the bonding force through plasma pretreatment + primer, and a micro-nano rough structure is formed on the surface layer to reduce the surface energy. The functions of the PTFE coating are as follows: 1. Significantly reduce tissue residue and keep the blade tip sharp and clean; 2. Reduce the surface temperature of the blade tip and reduce thermal damage to tissues; 3. Improve the durability of the coating and avoid large-area peeling.

[0003] At present, the coating insulation device supporting the electric scalpel has deficiencies: single jacket insulation leads to uneven temperature inside the cavity, affecting the activity of consumables or the coating on the blade tip; the inner wall of the inner tank is easily adhered with coating materials and debris, which is difficult to clean and is prone to cross-contamination. In view of this, we propose an anti-adhesion PTFE coating insulation device for an electric scalpel. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-adhesion PTFE coating insulation device for an electric scalpel to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an anti-adhesion PTFE coating insulation device for an electric scalpel, including a lower tank body and a thermal insulation jacket installed at the outer end of the lower tank body. An upper shell is installed at the upper end of the lower tank body, and an inner tank is arranged inside the lower tank body.

[0006] A thermal insulation cavity is opened inside the lower tank body. A gear ring is rotationally clamped at the upper end inside the thermal insulation cavity. A plurality of inclined guide rods are fixedly connected inside the gear ring. The bottom ends of the silica gel scraping blades are fixedly connected with limiting sliding rods. The upper outer end of the lower tank body is fixedly connected with a support plate arranged in an L shape. A servo motor is fixedly connected inside the support plate. The output end of the servo motor is fixedly connected with a transmission shaft through a coupling. The top end of the transmission shaft is fixedly connected with a transmission gear meshing with the gear ring. A connecting pipe is embedded at the edge of the bottom end of the inner tank. A sealing ring is sleeved on the outer wall of the connecting pipe. A plurality of limiting rods are fixedly connected to the bottom end of the inner tank.

[0007] Preferably, a discharge pipe is embedded at the bottom edge of the lower tank, and the connecting pipe and the sealing ring are both inserted into the discharge pipe, while a feed pipe is embedded at the upper middle part of the upper shell.

[0008] Preferably, the bottom of each lower tank body is fixedly connected with several support legs.

[0009] Preferably, an annular groove is provided at the bottom of the insulation cavity, and the limiting slide rod is slidably engaged in the annular groove.

[0010] Preferably, a silicone scraper is fixedly connected to one side of each inclined guide rod.

[0011] Preferably, a transmission groove is provided through the upper end of the side wall of the lower tank.

[0012] Preferably, the bottom of the lower tank body is provided with several limiting grooves whose diameter matches that of the limiting rod.

[0013] Compared with the prior art, this utility model

[0014] Benefit 1: The inner liner and the lower tank are designed to be detachable through the snap-fit ​​structure of the limiting rod and the limiting groove. After use, the inner liner can be removed separately for thorough cleaning and disinfection, avoiding the accumulation of consumable residues and the generation of pollution. At the same time, it is convenient to replace and maintain the inner liner, extending the overall service life of the device.

[0015] Benefit 2: Compared to traditional single insulation, the servo motor drives the gear ring to rotate the inclined guide rod, creating a dynamic stirring and guiding effect. This makes the temperature distribution inside the insulation cavity more uniform, ensuring the stability of the electrosurgical coating treatment. At the same time, the silicone scraper can clean the outer wall of the inner liner, thus ensuring that the outer wall of the inner liner is kept clean. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0018] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 For the present utility model Figure 2 Partial cut-off structure diagram;

[0020] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Lower tank; 11. Insulation jacket; 12. Discharge pipe; 13. Gear ring; 14. Inclined guide rod; 15. Silicone scraper; 16. Limiting slide rod; 110. Support plate; 111. Servo motor; 112. Transmission gear; 101. Insulation cavity; 102. Annular slide groove; 103. Limiting groove; 104. Transmission groove; 2. Upper shell; 21. Feed pipe; 3. Inner liner; 31. Limiting rod; 32. Connecting pipe. Detailed Implementation

[0022] like Figures 1-5 As shown, this utility model provides the following technical solution:

[0023] Example 1: An anti-adhesion PTFE coating insulation device for electrosurgical units includes a lower tank 1 and an insulation jacket 11 installed on the outer end of the lower tank 1. An upper shell 2 is installed on the upper end of the lower tank 1, and an inner liner 3 is provided inside the lower tank 1. A discharge pipe 12 is embedded at the bottom edge of the lower tank 1, and a feed pipe 21 is embedded at the upper middle part of the upper shell 2. Several support legs are fixedly connected to the bottom of the lower tank 1. The insulation jacket 11 includes a heating element (such as an electric heating wire installed inside the jacket) as an active heat source. The heating power can be adjusted according to the needs to provide stable heat to the lower tank and internal consumables. A temperature controller is installed on the outer wall of the jacket. When the temperature exceeds the preset range, the power will be cut off to ensure safe use.

[0024] The discharge pipe 12 embedded at the bottom of the lower tank 1 provides an outlet channel for consumables such as PTFE coating pretreatment agent after heat preservation, meeting the needs of electrosurgical coating treatment; the connecting pipe 32 and the sealing ring are engaged in the discharge pipe 12, which can not only ensure the stability of the consumable flow path, but also prevent leakage through the sealing ring, avoiding waste or contamination of consumables. At the same time, the feed pipe 21 of the upper shell 2 provides a convenient inlet for consumable injection, ensuring a smooth "injection-outflow" process; the support legs at the bottom of the lower tank 1 can support the entire device.

[0025] In use, first place the device stably on the surgical auxiliary table using the support legs at the bottom of the lower tank 1 to ensure overall stability. When it is necessary to keep the electrosurgical coating consumables (PTFE coating pretreatment agent) warm, inject the consumables into the inner liner 3 through the feed pipe 21 of the upper shell 2; the insulation jacket 11 at the outer end of the lower tank 1 can continuously maintain a stable internal temperature, preventing the performance of the consumables from being affected by temperature fluctuations. When it is necessary to remove the warmed consumables, open the discharge pipe 12 at the bottom edge of the lower tank 1, and the consumables in the inner liner 3 can flow out through the discharge pipe 12, meeting the usage requirements of electrosurgical coating treatment.

[0026] Example 2: The technical solution of this example, which differs from Example 1, includes: a heat preservation cavity 101 is provided inside the lower tank 1; a gear ring 13 is rotatably engaged at the upper end of the heat preservation cavity 101; several inclined guide rods 14 are fixedly connected inside the gear ring 13; a limit slide rod 16 is fixedly connected to the bottom end of each silicone scraper 15; an L-shaped support plate 110 is fixedly connected to the upper end of the lower tank 1; a servo motor 111 is fixedly connected inside the support plate 110; the output end of the servo motor 111 is fixedly connected to a drive shaft via a coupling; and a gear ring 13 is fixedly connected to the top end of the drive shaft. The transmission gear 112, the connecting pipe 32 is embedded at the bottom edge of the inner liner 3, the outer wall of the connecting pipe 32 is fitted with a sealing ring, the bottom of the inner liner 3 is fixedly connected with several limiting rods 31, the bottom of the heat preservation cavity 101 is provided with an annular sliding groove 102, and the limiting sliding rod 16 is slidably engaged in the annular sliding groove 102. The inclined guide rod 14 is fixedly connected with a silicone scraper 15 on one side, the upper end of the side wall of the lower tank 1 is provided with a transmission groove 104, the bottom of the lower tank 1 is provided with several limiting grooves 103 with a diameter matching the diameter of the limiting rod 31, and the connecting pipe 32 and the sealing ring are both engaged in the discharge pipe 12.

[0027] The annular groove 102 at the bottom of the insulation cavity 101 slides in conjunction with the limiting slide rod 16, providing a preset trajectory for the limiting slide rod 16. When the inclined guide rod 14 drives the silicone scraper 15 to rotate, the limiting slide rod 16 moves along the annular groove 102, limiting the silicone scraper 15 from deviating or getting stuck, ensuring that the scraping action is stable and uniform.

[0028] The silicone scraper 15 fixed on one side of the inclined guide rod 14 can rotate synchronously with the inclined guide rod 14 to scrape and clean the outer wall of the inner liner 3.

[0029] The transmission groove 104 at the upper end of the side wall of the lower tank 1 provides a space for the transmission gear 112 to pass through, so as to ensure that the transmission gear 112 meshes with the gear ring 13;

[0030] The limiting groove 103 at the bottom of the lower tank 1 matches the diameter of the limiting rod 31 at the bottom of the inner liner 3. When the inner liner 3 is installed, the limiting rod 31 is inserted into the limiting groove 103, which can position and fix the inner liner 3, preventing the inner liner 3 from shifting or shaking when the device is running or when consumables are injected or discharged, thus ensuring a stable heat preservation environment for consumables.

[0031] In use, the electrosurgical coating consumable is first injected into the inner liner 3 through the feed pipe 21 via the support leg fixing device. The limiting rod 31 at the bottom of the inner liner 3 is inserted into the limiting groove 103 of the lower tank 1 to ensure that the inner liner 3 is stable and does not shift. The inner liner 3 is connected to the lower tank 1 via the upper shell 2 by bolts (with a sealing gasket in the middle). The connecting pipe 32 and the sealing ring are engaged in the discharge pipe 12 to prevent the consumable from leaking.

[0032] The servo motor 111 is started, and its output end drives the transmission gear 112 to rotate through the transmission shaft. The transmission shaft passes through the transmission groove 104 to realize power transmission. The transmission gear 112 meshes with and drives the gear ring 13 to rotate in the heat preservation cavity 101. The gear ring 13 drives the inclined guide rod 14 to rotate synchronously, stirring and guiding the medium in the heat preservation cavity 101 to ensure uniform temperature in the cavity and avoid local temperature differences from affecting the performance of consumables. At the same time, the silicone scraper 15 on one side of the inclined guide rod 14 rotates with the rod and can simultaneously scrape and clean the outer wall of the inner liner 3. The limiting slide rod 16 at the bottom of the silicone scraper 15 slides along the annular slide groove 102 to ensure that the scraping action is stable and does not deviate.

[0033] When using consumables, open the discharge pipe 12, and the consumables in the inner liner 3 will flow out through the connecting pipe 32 and the discharge pipe 12.

Claims

1. An anti-adhesion PTFE coating insulation device for electric knife, comprising a lower tank (1) and an insulation jacket (11) and a silicone scraper (15) installed on the outer end of the lower tank (1), wherein an upper shell (2) is installed on the upper end of the lower tank (1), and an inner liner (3) is provided inside the lower tank (1). Its features are: The lower tank (1) has an insulated cavity (101) inside. A gear ring (13) is rotatably engaged at the upper end of the insulated cavity (101). Several inclined guide rods (14) are fixedly connected inside the gear ring (13). Limiting slide rods (16) are fixedly connected to the bottom end of the silicone scraper (15). An L-shaped support plate (110) is fixedly connected to the upper end of the lower tank (1). A servo motor (111) is fixedly connected inside the support plate (110). A drive shaft is fixedly connected to the output end of the servo motor (111) through a coupling. A drive gear (112) that meshes with the gear ring (13) is fixedly connected to the top end of the drive shaft. A connecting pipe (32) is embedded at the bottom edge of the inner liner (3). A sealing ring is sleeved on the outer wall of the connecting pipe (32). Several limiting rods (31) are fixedly connected to the bottom end of the inner liner (3).

2. The anti-adhesion PTFE coating heat preservation device for electrosurgical units according to claim 1, characterized in that: The lower tank (1) is fitted with a discharge pipe (12) at the bottom edge, and the connecting pipe (32) and the sealing ring are both inserted into the discharge pipe (12). The upper part of the upper shell (2) is fitted with a feed pipe (21).

3. The anti-adhesion PTFE coating heat preservation device for electrosurgical units according to claim 1, characterized in that: The bottom of the lower tank (1) is fixedly connected with several support legs.

4. The anti-adhesion PTFE coating heat preservation device for electrosurgical units according to claim 1, characterized in that: The bottom of the insulation cavity (101) is provided with an annular groove (102), and the limiting slide rod (16) is slidably engaged in the annular groove (102).

5. The anti-adhesion PTFE coating heat preservation device for electrosurgical units according to claim 1, characterized in that: Each side of the inclined guide rod (14) is fixedly connected with a silicone scraper (15).

6. The anti-adhesion PTFE coating heat preservation device for electrosurgical units according to claim 1, characterized in that: The upper side wall of the lower tank (1) is provided with a transmission groove (104).

7. The anti-adhesion PTFE coating insulation device for electrosurgical units according to claim 1, characterized in that: The bottom of the lower tank (1) is provided with several limiting grooves (103) whose diameter matches that of the limiting rod (31).

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