Minimally invasive surgical glove and method of production

Abstract

The present application relates to surgical glove technical field, disclose a kind of minimally invasive surgical glove and production method, minimally invasive surgical glove includes: disposable glove, the back of hand side of the disposable glove is provided with five groups of knuckle tightness adjusting module, five groups of the knuckle tightness adjusting module respectively correspond five fingers, for adjusting the tightness of the side of finger pad;Each group of the knuckle tightness adjusting module includes micro gas box and inflatable film, the inflatable film is double-layer sealed structure, the inflatable film is fixedly bonded in the back of the inside finger of the disposable glove finger part position, the micro gas box is embedded in the back of the disposable glove position, and the micro gas box is communicated with the inflatable film, for controlling the expansion degree of the inflatable film;The present application is provided with knuckle tightness adjusting module on the back of hand side, the expansion degree of inflatable film is controlled using micro gas box, glove tension in the radial direction of finger can be actively changed.

Description

Technical Field

[0001] This invention relates to the field of surgical gloves, and more specifically, to a minimally invasive surgical glove and a method for manufacturing it. Background Technology

[0002] Minimally invasive surgery (such as laparoscopic and thoracoscopic surgery) has advantages such as less trauma and faster recovery, and is widely used in clinical surgery. During minimally invasive surgery, surgeons typically insert specialized minimally invasive surgical instruments through a thin trocar. Because the handles of these instruments are usually thin and precisely designed, surgeons' hands are prone to fatigue during prolonged, high-precision procedures.

[0003] Achieving a perfect fit between gloves and fingers is challenging. If the glove is too large, gaps will form between the glove and the fingertips, causing slippage during operation. This severely impacts the surgeon's precise perception of instrument pressure and can even lead to instrument slippage and medical accidents. Conversely, if the glove is too small, while a better fit is achieved, excessive pressure on the fingers will hinder blood circulation, accelerate hand fatigue, and create significant resistance when the fingers are bent, reducing dexterity. Therefore, we propose a minimally invasive surgical glove and its manufacturing method. Summary of the Invention

[0004] This invention provides a minimally invasive surgical glove and its manufacturing method, solving the technical problem in related technologies where the size of the glove does not fit the doctor's fingers well, which can easily affect the doctor's feel.

[0005] The first aspect of the present invention provides a minimally invasive surgical glove, comprising: a disposable glove, wherein the back of the hand side of the disposable glove is provided with five sets of finger joint tightness adjustment modules, the five sets of finger joint tightness adjustment modules respectively corresponding to the five fingers, for adjusting the tightness of the fit on the finger pad side; Each set of finger joint tightness adjustment modules includes a miniature air box and an expansion film. The expansion film has a double-layer sealed structure and is fixedly adhered to the back of the finger inside the finger part of the disposable glove. The miniature air box is embedded in the back of the hand of the disposable glove and is connected to the expansion film to control the degree of expansion of the expansion film so that the fingertip fits the disposable glove more closely. The disposable gloves are provided with thickened anti-slip pads on the fingertips of the first and second joints of the thumb, middle finger, and ring finger. When the expanding film expands, it tightens the thickened anti-slip pads to increase the fit between the thickened anti-slip pads and the fingers.

[0006] Furthermore, the thickened anti-slip pad is fixedly provided with a tensioning rubber edge on its side, and the tensioning rubber edge extends to the back of the corresponding finger of the disposable glove. When the expansion sheet expands, the thickened anti-slip pad is tightened by the tensioning rubber edge.

[0007] Furthermore, the surface of the thickened anti-slip pad is arrayed with grooved rings, and a raised ring is provided at the center of the grooved rings. A space is reserved between the outer ring of the raised ring and the inner wall of the grooved ring.

[0008] Furthermore, the thickness of the grooved ring is less than the combined thickness of the thickened anti-slip pad and the raised ring. The thickened anti-slip pad is subjected to tension and the internal support force of the finger, causing the grooved ring to be pulled and the raised ring to bulge out.

[0009] Furthermore, the expansion film consists of three parts: a first knuckle film, a second knuckle film, and a third knuckle film. The first knuckle film is located at the first knuckle near the back of the hand, the third knuckle film is located on the back of the fingertip, and the second knuckle film is located between the first knuckle film and the third knuckle film.

[0010] Furthermore, there is a 1-2cm space between each pair of the first, second, and third knuckle films to ensure comfort when bending the finger joints. The first, second, and third knuckle films are connected in series via an air duct.

[0011] Furthermore, the air outlet of the miniature air box is connected to the top of the air guide hose, and a one-way airflow module is provided at the connection between the air guide hose and the miniature air box. By pressing the miniature air box, the first, second, and third knuckle films of the corresponding fingers expand.

[0012] A second aspect of the present invention provides a method for producing minimally invasive surgical gloves, comprising the following steps: S1. Under stirring conditions, add the surfactant aqueous solution to the natural latex in sequence, then add the vulcanization accelerator dispersion, zinc oxide dispersion, light calcium carbonate powder dispersion, antioxidant dispersion, defoamer aqueous solution and soft water and mix evenly. Then adjust the pH to 9.7-10 with ammonia water to obtain the latex. By weight, the composition is as follows: 90-110 parts natural rubber latex, 0.5-1.0 parts surfactant aqueous solution, 0.5-1.0 parts vulcanization accelerator dispersion, 0.4 parts zinc oxide dispersion, 0.5 parts light calcium carbonate powder dispersion, 1.0 part antioxidant dispersion, 3.0 parts defoamer aqueous solution, and 80-90 parts soft water. S2. The pretreated hand mold is immersed in the latex at a temperature of 28-33℃. The immersed hand mold is shaped to form a film at a temperature of 50-65℃. The hand mold with the film is filtered with clean water at a temperature of ≥55℃ and a pH value of 9-10, and then dried at a temperature of 80-130℃. Then it is vulcanized at a temperature of 55-65℃ to obtain a basic glove semi-finished product. S3. The basic glove semi-finished product obtained in step two is sequentially immersed in cold water with a temperature not higher than 35°C, chlorine water with a temperature not higher than 45°C, and potassium hydroxide aqueous solution with a temperature not higher than 45°C and a pH value of 8-10. After demolding, the main body of disposable gloves is obtained. S4. On the demolded disposable glove body, assemble the knuckle tension adjustment module in the following order: An installation groove is made on the back of the disposable glove corresponding to each finger. The miniature air box is embedded in the installation groove and sealed and fixed with medical-grade adhesive. On the back of the fingers inside the disposable glove, apply medical-grade adhesive according to the positions of the first, second, and third knuckle films. The first knuckle film corresponds to the first knuckle near the back of the hand, the third knuckle film corresponds to the back of the fingertip, and the second knuckle film is located between the two, with a 1-2 cm gap between adjacent films. Then, glue and fix the three films together. The first, second, and third knuckle films are connected in series using a gas-conducting hose, and the top of the gas-conducting hose is connected to the outlet of the micro air box. At the same time, a one-way airflow module is installed at the connection point so that the gas can only flow from the micro air box to the expansion film. Check the airtightness of each connection to ensure the double-layer sealing structure of the expansion film is intact; S5. On the fingertips of the first and second joints of the thumb, middle finger, and ring finger of the disposable glove, a thickened anti-slip pad is applied by secondary glue application or hot pressing. A tightening edge is integrally formed or bonded to the side of the thickened anti-slip pad, extending the tightening edge to the back of the corresponding finger of the disposable glove. A grooved ring is arrayed on the surface of the thickened anti-slip pad, and a raised dot ring is formed at the center of each grooved ring, ensuring that there is a space between the outer ring of the raised dot ring and the inner ring wall of the grooved ring, and that the thickness of the grooved ring is less than the thickness of both the thickened anti-slip pad and the raised dot ring. S6. Perform an overall functional test on the assembled minimally invasive surgical gloves, including whether the expansion film expands normally after the miniature air box is pressed and inflated, whether tightening the rubber edge causes the thickened anti-slip pad to tighten, and whether the raised ring protrudes after being subjected to force. After passing the test, sterilize and seal the gloves.

[0013] The beneficial effects of this invention are as follows: This invention utilizes a finger tightness adjustment module on one side of the back of the hand, employing a miniature air box to control the expansion of the expansion film, thereby actively altering the tension of the glove in the radial direction of the fingers. When the expansion film expands, its volume increases and bulges towards the back of the hand, thus physically pulling the glove material on the fingertips towards the fingers. This design allows doctors to adjust the tightness of the glove against their fingertips in real time according to their own finger size and surgical needs, eliminating gaps, avoiding slippage, and significantly improving the precision and stability of minimally invasive surgical instrument operation. Thickened anti-slip pads are provided on the fingertips of the thumb, middle finger, and ring finger (the main fingers that bear the weight when gripping the device). When the knuckle tension adjustment module is activated, the expansion of the expansion film directly tightens the thickened anti-slip pads, making them more tightly wrapped around the fingertips. This dynamic tensioning mechanism not only ensures full contact between the anti-slip pads and the skin, but also maintains a constant grip force when the fingers sweat or experience slight displacement, effectively preventing the device from slipping. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the positional structure of the expanding film of the present invention; Figure 3 This is a schematic diagram of the front structure of the disposable glove of the present invention; Figure 4 This is a schematic diagram of the thickened anti-slip pad structure of the present invention; Figure 5 This is a schematic diagram of the expansion film structure of the present invention; Figure 6 This is a schematic diagram of the micro air box structure of the present invention.

[0015] In the diagram: 11. Disposable gloves; 12. Thickened anti-slip mat; 13. Raised dot ring; 14. Groove ring; 15. Tightening rubber edge; 2. Knuckle tension adjustment module; 21. Miniature air box; 22. Air guide hose; 23. Expansion film; 231. First knuckle film; 232. Second knuckle film; 233. Third knuckle film; 24. One-way airflow module. Detailed Implementation

[0016] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0017] Example 1 like Figures 1-6 As shown, a minimally invasive surgical glove includes: a disposable glove 11, on the back side of the disposable glove 11, five sets of finger joint tension adjustment modules 2 are provided, each of the five sets of finger joint tension adjustment modules 2 corresponding to the five fingers, for adjusting the tightness of the fit on the fingertip side; Each set of finger joint tension adjustment modules 2 includes a miniature air box 21 and an expansion film 23. The expansion film 23 has a double-layer sealed structure and is fixedly bonded to the back of the finger inside the finger part of the disposable glove 11. The miniature air box 21 is embedded in the back of the hand of the disposable glove 11 and is connected to the expansion film 23 to control the degree of expansion of the expansion film 23 so that the fingertip fits the disposable glove 11 more closely. Thickened anti-slip pads 12 are provided on one side of the first and second joints of the thumb, middle finger and ring finger of the disposable glove 11. When the expansion film 23 expands, it tightens the thickened anti-slip pads 12 to increase the degree of contact between the thickened anti-slip pads 12 and the fingers.

[0018] The thickened anti-slip pad 12 is fixedly provided with a tensioning rubber edge 15 on its side, and the tensioning rubber edge 15 extends to the back of the corresponding finger of the disposable glove 11. When the expansion sheet 23 expands, the thickened anti-slip pad 12 is tightened by the tensioning rubber edge 15.

[0019] The surface of the thickened anti-slip pad 12 is arrayed with grooved rings 14, and a raised ring 13 is provided at the center of the grooved ring 14. There is a space reserved between the outer ring of the raised ring 13 and the inner ring wall of the grooved ring 14.

[0020] The thickness of the groove ring 14 is less than the thickness of both the thickened anti-slip pad 12 and the raised dot ring 13. The thickened anti-slip pad 12 is subjected to tension and the internal support force of the fingers, and the groove ring 14 is pulled, causing the raised dot ring 13 to bulge out.

[0021] The expansion film 23 consists of three parts: a first knuckle film 231, a second knuckle film 232, and a third knuckle film 233. The first knuckle film 231 is located at the first knuckle near the back of the hand, the third knuckle film 233 is located on the back of the fingertip, and the second knuckle film 232 is located between the first knuckle film 231 and the third knuckle film 233.

[0022] The first knuckle film 231, the second knuckle film 232, and the third knuckle film 233 each have a 1-2cm space between each other to ensure comfort when bending the finger joints. The first knuckle film 231, the second knuckle film 232, and the third knuckle film 233 are connected in series through an air guide tube 22.

[0023] The air outlet of the miniature air box 21 is connected to the top of the air guide hose 22. A one-way airflow module 24 is provided at the connection between the air guide hose 22 and the miniature air box 21. By pressing the miniature air box 21, the first knuckle film 231, the second knuckle film 232, and the third knuckle film 233 of the corresponding finger expand.

[0024] The device comprises: disposable gloves 11, five sets of knuckle tension adjustment modules 2 (each corresponding to one of the five fingers), a miniature air box 21 and an expansion film 23 in each set of knuckle tension adjustment modules 2, a thickened anti-slip pad 12 (located on the fingertip side of the first and second knuckles of the thumb, middle finger, and ring finger), a tensioning edge 15, a grooved ring 14, a raised dot ring 13, an air duct 22, and a one-way airflow module 24. The expansion film 23 has a double-layer sealed structure and is composed of three parts connected in series: a first knuckle film 231, a second knuckle film 232, and a third knuckle film 233.

[0025] After the user inserts their hand into the disposable glove 11, the back of their fingers contacts the expanding film 23, and the pad of their fingers contacts the thickened anti-slip pad 12 (and the grooved ring 14 and the raised dotted ring 13). Initially, there is a certain gap or insufficient tightness between the disposable glove 11 and the fingers. To improve the fit between the fingertips and the glove and enhance anti-slip properties during minimally invasive surgery, the user operates as follows: Principle of pneumatic expansion: Press the miniature air box 21 located on the back of the hand of the disposable glove 11. The miniature air box 21 is an elastic compressible air source, and its air outlet is connected to the top of the air delivery hose 22. The air delivery hose 22 is connected in series with the first knuckle film 231, the second knuckle film 232, and the third knuckle film 233. When pressed, the gas enters the air delivery hose 22 through the one-way airflow module 24, and then fills each knuckle film. Since the one-way airflow module 24 only allows gas to flow into the expansion film 23 in one direction, the gas will not flow back to the miniature air box 21.

[0026] The expansion film 23 has a double-layer sealed structure with variable internal volume. After inflation, the internal gas pressure increases, causing the volume to expand. Let the initial internal gas volume be... The absolute pressure is (Equal to ambient atmospheric pressure), the volume after expansion is The pressure is Under isothermal conditions, according to the ideal gas law: ; Therefore ; because > ,but > The internal pressure of the expansion film 23 is greater than the external pressure, causing it to bulge towards the back of the finger. However, the expansion film 23 is fixedly adhered to the back of the finger inside the finger area of ​​the disposable glove 11, and the glove material has a certain degree of elasticity, so the expansion force will be transmitted to the fingertip side through the glove material.

[0027] The principle of tension and adhesion: When the expanding film 23 expands, its radial dimension increases, generating an outward expansion tension on the back of the fingers of the disposable glove 11. This tension is transmitted to both sides of the fingers through the elasticity of the glove and further acts on the thickened anti-slip pad 12 through the tightening edge 15. The tightening edge 15 is fixedly set on the side of the thickened anti-slip pad 12 and extends to the back of the corresponding finger of the disposable glove 11. When the expanding film 23 expands, the glove on the back of the fingers is tightened, and the tightening edge 15 is subsequently subjected to a pulling force F towards the back. This pulling force causes the thickened anti-slip pad 12 to tighten towards the back of the fingers, thereby increasing the normal pressing force N between the thickened anti-slip pad 12 and the fingertip.

[0028] Let the initial gap between the fingertip and the thickened anti-slip pad 12 be δ, and the radial displacement caused by the tension after expansion be Δr. Then, the tightness of the fit is proportional to the tension F. According to Hooke's Law, the elastic force of the glove material satisfies: F = k·Δr; Where k is the equivalent elastic coefficient of the glove and the tightening rubber edge 15. As the tension increases, the thickened anti-slip pad 12 is pulled towards the back of the fingers, eliminating the gap between the fingertips and the glove, and achieving a tight fit.

[0029] The principle of raised dots for enhanced anti-slip effect: The thickened anti-slip mat 12 has an array of grooved rings 14 on its surface. A raised ring 13 is positioned at the center of each grooved ring 14, and a space is reserved between the outer ring of the raised ring 13 and the inner wall of the grooved ring 14. The thickness of the grooved ring 14 is less than the combined thickness of the thickened anti-slip mat 12 and the raised ring 13. When the thickened anti-slip mat 12 is subjected to a tensile force F from the tightening edge 15 and a finger-supporting force, the grooved ring 14, being thinner, undergoes tensile deformation first. Let the original thickness of the grooved ring 14 be... After being stretched, the thickness becomes Its strain Because the grooved ring 14 is stretched radially, the surrounding material is compressed towards the center, causing the raised ring 13 to bulge towards the finger skin. After the raised ring 13 bulges out, the contact area between it and the fingertip decreases, increasing local pressure and thus significantly enhancing friction. According to Coulomb's law of friction, friction... ,in The coefficient of friction, For normal pressure. The convex ring 13 protrudes locally. Increased contact pressure, and the micro-convex structure also increases the effective coefficient of friction. Therefore, the anti-slip effect is significantly enhanced.

[0030] Independent bending comfort of the knuckles: The first phalanx film 231, the second phalanx film 232, and the third phalanx film 233 are spaced 1-2 cm apart in pairs. No expansion film 23 is installed in these spaces, ensuring that the finger joints are not rigidly obstructed during bending, thus guaranteeing the flexibility of the surgical procedure. Since the three films are connected in series via a flexible air tube 22, pressing the miniature air box 21 once will cause all phalanges to expand simultaneously, achieving overall adjustment.

[0031] Workflow: Wearing procedure: The user puts their hand into the disposable glove 11, so that the five fingers correspond to the five sets of finger joint tension adjustment modules 2 respectively. The back of the finger contacts the expansion film 23 (including the first finger joint film 231, the second finger joint film 232, and the third finger joint film 233), and the pad of the finger contacts the thickened anti-slip pad 12 (only the first and second finger joints of the thumb, middle finger, and ring finger).

[0032] Initial inspection: Observe the fit between the disposable glove 11 and the fingers. If there is looseness or insufficient anti-slip at the fingertips, prepare for adjustment.

[0033] Press to inflate: Press the miniature air box 21 located on the back of your hand. The gas enters the air guide hose 22 through the one-way airflow module 24 and is sequentially inflated into the first knuckle film 231, the second knuckle film 232, and the third knuckle film 233.

[0034] Expansion and tightening: The expansion film 23 expands and bulges towards the back of the finger. The tension is transmitted through the tightening edge 15, which causes the thickened anti-slip pad 12 to tighten towards the back of the finger, so that the fingertip fits tightly against the glove.

[0035] Formation of raised dots: Under the combined action of tension and finger support, the groove ring 14 on the surface of the thickened anti-slip pad 12 is stretched, and the raised dot ring 13 protrudes outward, increasing the local pressure and friction coefficient.

[0036] Adjustments during use: If the fit is too tight or too loose, press the miniature air box 21 again to increase the inflation (the one-way airflow module 24 prevents gas backflow and can accumulate pressure by pressing multiple times); if air needs to be released, release the exhaust valve of the miniature air box 21 (not specified in the claims, but conventional designs in the art can add a pressure relief structure) or reverse the operation through the one-way airflow module 24.

[0037] Postoperative removal: Release the gas inside the expansion film 23, allow the disposable gloves 11 to return to a relaxed state, remove and discard them in the usual manner.

[0038] Improve surgical precision: The fingertip tightness adjustment module 2 ensures a tight fit between the fingertip and the disposable glove 11, reducing the impact of glove slippage on fine operations. This is especially suitable for minimally invasive surgeries where force and tactile feedback are highly required.

[0039] Enhanced anti-slip performance: Utilizing the synergistic effect of the thickened anti-slip pad 12, the grooved ring 14, the raised ring 13, and the tightening rubber edge 15, the raised ring 13 protrudes after the expansion film 23 is tightened, significantly increasing the friction and preventing slippage when holding needles or pliers.

[0040] Personalized fit: The miniature air box 21 and the one-way airflow module 24 allow users to adjust the degree of expansion according to the thickness of their fingers, achieving stepless pressure regulation and adapting to different hand shapes.

[0041] Example 2 A method for producing a minimally invasive surgical glove includes the following steps: S1. Under stirring conditions, add the surfactant aqueous solution to the natural latex in sequence, then add the vulcanization accelerator dispersion, zinc oxide dispersion, light calcium carbonate powder dispersion, antioxidant dispersion, defoamer aqueous solution and soft water and mix evenly. Then adjust the pH to 9.7-10 with ammonia water to obtain the latex. By weight, the composition is as follows: 90-110 parts natural rubber latex, 0.5-1.0 parts surfactant aqueous solution, 0.5-1.0 parts vulcanization accelerator dispersion, 0.4 parts zinc oxide dispersion, 0.5 parts light calcium carbonate powder dispersion, 1.0 part antioxidant dispersion, 3.0 parts defoamer aqueous solution, and 80-90 parts soft water. S2. The pretreated hand mold is immersed in latex at a temperature of 28-33℃. After immersion, the hand mold is shaped to form a film at 50-65℃. The hand mold with the film is filtered with clean water at a temperature of ≥55℃ and a pH value of 9-10, and then dried at 80-130℃. Finally, it is vulcanized at 55-65℃ to obtain a basic glove semi-finished product. S3. The basic glove semi-finished product obtained in step two is sequentially immersed in cold water with a temperature not higher than 35°C, chlorine water with a temperature not higher than 45°C, and potassium hydroxide aqueous solution with a temperature not higher than 45°C and a pH value of 8-10. After demolding, the main body of disposable glove 11 is obtained. S4. On the main body of the demolded disposable glove 11, assemble the knuckle tension adjustment module 2 in the following order: An installation groove is made on the back of the disposable glove 11 corresponding to each finger, the miniature air box 21 is embedded in the installation groove, and sealed and fixed with medical grade adhesive; On the back of the fingers inside the disposable glove 11, medical-grade adhesive is applied according to the positions of the first knuckle film 231, the second knuckle film 232, and the third knuckle film 233. The first knuckle film 231 corresponds to the first knuckle near the back of the hand, the third knuckle film 233 corresponds to the back of the fingertip, and the second knuckle film 232 is located between the two, with a 1-2 cm gap between adjacent films. Then, the three films are glued and fixed together. The first knuckle film 231, the second knuckle film 232, and the third knuckle film 233 are connected in series by a gas guiding hose 22, and the top end of the gas guiding hose 22 is connected to the air outlet of the miniature air box 21. At the same time, a one-way airflow module 24 is installed at the connection point so that the gas can only flow from the miniature air box 21 to the expansion film 23. Check the airtightness of each connection to ensure that the double-layer sealing structure of the expansion film 23 is intact; S5. On the fingertips of the first and second joints of the thumb, middle finger, and ring finger of the disposable glove 11, a thickened anti-slip pad 12 is applied by secondary glue application or hot pressing. A tensioning edge 15 is integrally formed or bonded to the side of the thickened anti-slip pad 12, and the tensioning edge 15 is extended to the back of the corresponding finger of the disposable glove 11. A grooved ring 14 is arrayed on the surface of the thickened anti-slip pad 12, and a raised dot ring 13 is formed at the center of each grooved ring 14, ensuring that there is a space reserved between the outer ring of the raised dot ring 13 and the inner ring wall of the grooved ring 14, and that the thickness of the grooved ring 14 is less than the thickness of both the thickened anti-slip pad 12 and the raised dot ring 13. S6. Perform an overall functional test on the assembled minimally invasive surgical gloves, including whether the expansion film 23 expands normally after the miniature air box 21 is pressed and inflated, whether the tightening of the rubber edge 15 causes the thickened anti-slip pad 12 to tighten, and whether the raised dot ring 13 protrudes after being subjected to force. After passing the test, sterilize and seal the gloves.

[0042] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of the present embodiments, all of which are within the protection scope of the present embodiments.

Claims

1. A minimally invasive surgical glove, characterized in that, include: Disposable glove (11), the disposable glove (11) has five sets of finger joint tightness adjustment modules (2) on the back of the hand, the five sets of finger joint tightness adjustment modules (2) correspond to the five fingers respectively, and are used to adjust the tightness of the fit on the finger pad side; Each set of the knuckle tightness adjustment module (2) includes a miniature air box (21) and an expansion film (23). The expansion film (23) has a double-layer sealed structure. The expansion film (23) is fixedly bonded to the back of the finger inside the finger part of the disposable glove (11). The miniature air box (21) is embedded in the back of the hand of the disposable glove (11) and is connected to the expansion film (23) to control the degree of expansion of the expansion film (23) so that the fingertip fits the disposable glove (11) more closely. The disposable glove (11) has thickened anti-slip pads (12) on the fingertips of the first and second joints of the thumb, middle finger and ring finger respectively. When the expansion film (23) expands, it tightens the thickened anti-slip pads (12) to increase the degree of contact between the thickened anti-slip pads (12) and the fingers.

2. The minimally invasive surgical glove according to claim 1, characterized in that, The thickened anti-slip pad (12) is fixedly provided with a tensioning rubber edge (15) on its side, and the tensioning rubber edge (15) extends to the back of the corresponding finger of the disposable glove (11). When the expansion sheet (23) expands, the thickened anti-slip pad (12) is tightened by the tensioning rubber edge (15).

3. The minimally invasive surgical glove according to claim 2, characterized in that, The thickened anti-slip pad (12) has a grooved ring (14) on its surface. A raised ring (13) is provided at the center of the grooved ring (14). The outer ring of the raised ring (13) and the inner ring wall of the grooved ring (14) are reserved with space.

4. A minimally invasive surgical glove according to claim 3, characterized in that, The thickness of the groove ring (14) is less than the thickness of both the thickened anti-slip pad (12) and the convex ring (13). The thickened anti-slip pad (12) is subjected to tension and the internal support force of the finger, and the groove ring (14) is pulled, causing the convex ring (13) to bulge out.

5. A minimally invasive surgical glove according to claim 1, characterized in that, The expansion film (23) consists of three parts: a first knuckle film (231), a second knuckle film (232), and a third knuckle film (233). The first knuckle film (231) is located at the first knuckle near the back of the hand, the third knuckle film (233) is located on the back of the fingertip, and the second knuckle film (232) is located between the first knuckle film (231) and the third knuckle film (233).

6. A minimally invasive surgical glove according to claim 5, characterized in that, The first knuckle film (231), the second knuckle film (232), and the third knuckle film (233) each have a 1-2cm space between each other to ensure the comfort of finger knuckle bending. The first knuckle film (231), the second knuckle film (232), and the third knuckle film (233) are connected in series through an air guide hose (22).

7. A minimally invasive surgical glove according to claim 6, characterized in that, The air outlet of the miniature air box (21) is connected to the top of the air guide hose (22). A one-way airflow module (24) is provided at the connection between the air guide hose (22) and the miniature air box (21). By pressing the miniature air box (21), the first knuckle film (231), the second knuckle film (232), and the third knuckle film (233) of the corresponding fingers expand.

8. A method for producing a minimally invasive surgical glove as described in claims 1-7, characterized in that, Includes the following steps: S1. Under stirring conditions, add the surfactant aqueous solution to the natural latex in sequence, then add the vulcanization accelerator dispersion, zinc oxide dispersion, light calcium carbonate powder dispersion, antioxidant dispersion, defoamer aqueous solution and soft water and mix evenly. Then adjust the pH to 9.7-10 with ammonia water to obtain the latex. By weight, the composition is as follows: 90-110 parts natural rubber latex, 0.5-1.0 parts surfactant aqueous solution, 0.5-1.0 parts vulcanization accelerator dispersion, 0.4 parts zinc oxide dispersion, 0.5 parts light calcium carbonate powder dispersion, 1.0 part antioxidant dispersion, 3.0 parts defoamer aqueous solution, and 80-90 parts soft water. S2. The pretreated hand mold is immersed in the latex at a temperature of 28-33℃. The immersed hand mold is shaped to form a film at a temperature of 50-65℃. The hand mold with the film is filtered with clean water at a temperature of ≥55℃ and a pH value of 9-10, and then dried at a temperature of 80-130℃. Then it is vulcanized at a temperature of 55-65℃ to obtain a basic glove semi-finished product. S3. The basic glove semi-finished product obtained in step two is sequentially immersed in cold water with a temperature not higher than 35°C, chlorine water with a temperature not higher than 45°C, and potassium hydroxide aqueous solution with a temperature not higher than 45°C and a pH value of 8-10. After demolding, the disposable glove (11) body is obtained. S4. On the main body of the demolded disposable glove (11), assemble the knuckle tension adjustment module (2) in the following order: An installation groove is made on the back of the hand of the disposable glove (11) corresponding to each finger, and the miniature air box (21) is embedded in the installation groove and sealed and fixed with medical grade adhesive. On the back of the fingers inside the disposable glove (11), medical-grade adhesive is applied according to the positions of the first knuckle film (231), the second knuckle film (232), and the third knuckle film (233). The first knuckle film (231) corresponds to the first knuckle near the back of the hand, the third knuckle film (233) corresponds to the back of the fingertip, and the second knuckle film (232) is located between the two, with a 1-2 cm gap between adjacent films. Then, the three films are glued and fixed together. The first knuckle film (231), the second knuckle film (232), and the third knuckle film (233) are connected in series using a gas guide hose (22), and the top of the gas guide hose (22) is connected to the air outlet of the miniature air box (21). At the same time, a one-way airflow module (24) is installed at the connection so that the gas can only flow from the miniature air box (21) to the expansion film (23). Check the airtightness of each connection to ensure that the double-layer sealing structure of the expansion film (23) is intact; S5. On the fingertips of the first and second joints of the thumb, middle finger and ring finger of the disposable glove (11), a thickened anti-slip pad (12) is set by secondary glue application or hot pressing. A tightening edge (15) is integrally formed or bonded to the side of the thickened anti-slip pad (12) and extended to the back of the corresponding finger of the disposable glove (11). A groove ring (14) is arrayed on the surface of the thickened anti-slip pad (12), and a raised ring (13) is formed at the center of each groove ring (14). It is ensured that there is a space between the outer ring of the raised ring (13) and the inner ring wall of the groove ring (14), and the thickness of the groove ring (14) is less than the thickness of the thickened anti-slip pad (12) and the raised ring (13). S6. Perform an overall functional test on the assembled minimally invasive surgical gloves, including whether the expansion film (23) expands normally after the micro air box (21) is pressed and inflated, whether the tightening of the rubber edge (15) causes the thickened anti-slip pad (12) to tighten, and whether the raised ring (13) protrudes after being subjected to force. After passing the test, sterilize and seal the gloves.

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