Medical gloves preparation method and partially reinforced medical gloves

Abstract

The present invention discloses a method for preparing medical gloves and partially enhanced medical gloves, wherein a method for preparing medical gloves comprises the following steps: S1: pre-treating a hand model; S2: preparing a latex mixture; S3: immersing the pre-treated hand model into the prepared latex mixture, so that the surface of the hand model is coated with the latex, so as to form a first layer of latex film on the surface of the hand model; S4: immersing the hand model coated with the latex into the prepared latex mixture again, and controlling the immersion depth, and immersing the remaining four fingers except the thumb for a second time, so as to form a second layer of latex film on the four fingers; wherein, after step S3 is completed, step S4 is performed at intervals of 0-60 minutes. Thus, not only can the strength and cutting resistance of the medical gloves at the key stress-bearing parts be effectively improved, the service life can be extended, the flexibility of medical staff during surgical operations can be ensured, and at the same time, the process is simplified and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical gloves, and in particular to a method for preparing medical gloves and partially reinforced medical gloves. Background Art

[0002] In the medical field, the hands of medical staff are important tools for performing various medical operations, and are also high-risk areas for occupational exposure. In order to protect their hands, medical staff wear medical gloves during surgery, but the parts of their hands that need to be protected vary depending on their positions.

[0003] Take Achilles tendon suturing in surgery as an example. During the suturing process, a knot is required to fix the wound. In this process, the rope will be tightly wrapped around the outer surface of the second and third sections of the four fingers except the thumb. When tying the knot, the shear force generated by the rope on the fingers can easily scratch the doctor's hands if they are not protected by gloves of sufficient strength.

[0004] At present, in order to prepare gloves with higher strength to protect doctors, the main method is to modify the latex mixture and add reinforcing agents to enhance the strength of the gloves. For example, graphite, graphene, silica, attapulgite, etc. are added to the latex liquid as reinforcing agents to modify the latex gloves to make them have higher strength. However, this leads to an increase in the overall hardness of the gloves, thereby affecting the operational flexibility during surgery.

[0005] Another method is to enhance the thickness of the finger area of ​​medical gloves by sticking a protective layer on the inside of the finger with adhesive. However, this method is cumbersome and requires multiple additional steps. In addition, there is a risk of the protective layer falling off due to problems with the bonding process, which will not only affect the service life of the medical gloves, but may also pose a potential safety hazard to the surgical process. Summary of the invention

[0006] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] To this end, one purpose of the present invention is to propose a method for preparing medical gloves. By improving the traditional medical glove preparation process, not only can the strength and cutting resistance of the medical gloves at key stress-bearing parts be effectively improved and the service life be extended, but also the flexibility of medical staff during surgical operations can be ensured, and at the same time, the process can be simplified and the cost can be reduced.

[0008] The present invention also provides a locally enhanced medical glove.

[0009] To achieve the above object, the first embodiment of the present invention provides a method for preparing medical gloves, comprising the following steps:

[0010] S1: pre-processing of the hand model;

[0011] S2: prepare latex mixture;

[0012] S3: immersing the pretreated hand model into the prepared latex mixture so that the surface of the hand model is covered with the latex to form a first layer of latex film on the surface of the hand model;

[0013] S4: immersing the hand model coated with latex again into the prepared latex mixture, and controlling the immersion depth, and immersing the remaining four fingers except the thumb for a second time to form a second layer of latex film on the four fingers; wherein,

[0014] After step S3 is completed, step S4 is performed at intervals of 0-60 minutes.

[0015] The method for preparing medical gloves of the present invention comprises coating the second layer after coating the first layer of latex film, so that the prepared medical gloves not only enhance the strength and cutting resistance of the remaining four fingers except the thumb, extend the service life, but also ensure the overall flexibility of the medical gloves, and at the same time, simplify the process and reduce the cost.

[0016] In addition, the medical gloves preparation method proposed in the application may also have the following additional technical features:

[0017] In one embodiment of the present invention, step S4 is performed immediately after step S3 is completed.

[0018] In one embodiment of the present invention, the thickness of the first latex film layer and the second latex film layer is adjusted by adjusting the viscosity of the latex liquid.

[0019] In one embodiment of the present invention, in step S1, the preprocessing steps of the hand model include:

[0020] S11: Cleaning the hand model;

[0021] S12: Drying the cleaned hand model;

[0022] S13: Immerse the dried hand mold in a chemical tank so that a chemical coating adheres to the surface of the hand mold.

[0023] In one embodiment of the present invention, the cleaning in step S11 includes one or more of washing the hand mold with soap water, washing with bleach, washing with a brush, and washing with hot water.

[0024] In one embodiment of the present invention, the chemical coating is a solvent that enhances latex adhesion.

[0025] In one embodiment of the present invention, it also includes:

[0026] S5: drying the hand mold after the second latex coating to completely solidify the first latex film layer and the second latex film layer to form a medical glove.

[0027] In one embodiment of the present invention, it also includes:

[0028] S6: performing crimping processing on the formed medical gloves;

[0029] S7: peeling the medical gloves after the curling process from the hand mold;

[0030] S8: Test the stripped medical gloves.

[0031] In one embodiment of the present invention, the detection in step S8 includes one or more of stretching, inflation and water filling tests.

[0032] The second aspect of the present invention provides a partially reinforced medical glove, which is prepared by the medical glove preparation method described in the first aspect of the present invention. The remaining four fingers of the partially reinforced medical glove except the thumb have a double-layer latex structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0035] Figure 1 A schematic diagram of a tensile force test of mechanical properties of a single-layer latex film in a reference group according to an embodiment of the present invention;

[0036] Figure 2 is a flow chart of a method for preparing medical gloves according to one embodiment of the present invention;

[0037] Figure 3 A schematic diagram of a tensile force test of the mechanical properties of a double-layer latex film prepared with an interval of 0 minutes between step S3 and step S4 according to another embodiment of the present invention;

[0038] Figure 4 A schematic diagram of a tensile force test of the mechanical properties of a double-layer latex film prepared with an interval of 20 minutes between step S3 and step S4 according to another embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of a tensile force test of the mechanical properties of a double-layer latex film prepared with an interval of 60 minutes between step S3 and step S4 according to another embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0041] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0042] The following describes the method for preparing medical gloves and the partially enhanced medical gloves according to embodiments of the present invention in conjunction with the accompanying drawings.

[0043] In the prior art, a medical glove with a single-layer latex film is usually selected to be coated on the surface of the hand mold. When performing a tensile test on the medical glove with a single-layer latex film, reference can be made to Figure 1 , where the horizontal axis indicates the stretched length of the latex film, and the vertical axis indicates the value of the stretching force, Figure 1 The two curves in the middle are parallel sample tensile force experiments for medical gloves. The first curve is the tensile breaking force of 8.56N when the single-layer film is cut into spline 1, and the second curve is the tensile breaking force of 9.37N when the single-layer film is cut into spline 2. The average tensile breaking force of the single-layer latex film is calculated to be 8.9N. It can be seen that the overall tensile resistance of medical gloves with a single-layer latex film is consistent, and the strength and cutting resistance of medical gloves at key stress-bearing parts cannot be effectively improved. The cutting resistance is poor, which leads to the rupture of medical gloves during surgical operations, thereby cutting the doctor's hands.

[0044] Example 1

[0045] In order to solve the above problems existing in the single-layer latex film medical gloves in the prior art, Figure 2 As shown, the method for preparing medical gloves according to the first aspect of the present invention may include the following steps:

[0046] Step 1, pre-treating the hand model, wherein the pre-treating of the hand model includes: cleaning the hand model, drying the cleaned hand model, and immersing the dried hand model in a chemical pool, so that a chemical coating adheres to the surface of the hand model, wherein the chemical coating is a solvent that enhances the adhesion of latex, and the solvent can be a coagulant, an adhesion promoter, etc., and in order to improve the solvent adhesion to the surface of the hand model, the liquid in the chemical pool can be heated to 70°, which can further improve the effect of the chemical coating adhered to the surface of the hand model.

[0047] As a possible situation, the hand mold shell can use a ceramic hand mold, which has higher wear resistance and corrosion resistance, can reduce the corrosion of chemical substances to the ceramic hand mold, thereby increasing the service life.

[0048] It is understandable that washing the hand model can remove impurities such as dust, oil, and old coating residues attached to the surface of the hand model, ensure the cleanliness of the surface of the hand model, and facilitate the adhesion of the subsequent chemical coating. Drying the hand model is to remove moisture from the surface of the hand model to prevent moisture from affecting the adhesion of the chemical coating, and to improve the ability of the chemical coating to adhere more closely to the surface of the hand model to form a uniform and firm coating. The chemical coating adheres to the surface of the hand model to better adhere to the latex in the subsequent steps.

[0049] Among them, cleaning the hand model can include one or more of soapy water cleaning, bleach cleaning, brush cleaning and hot water cleaning on the hand model in sequence. Among them, soapy water cleaning can remove dirt from the hand model, bleach cleaning can effectively remove stubborn stains and stains on the surface of the hand model, brush cleaning can remove residual dirt on the surface of the hand model, and finally hot water cleaning can remove residual detergent and other impurities on the surface of the hand model to ensure the thoroughness of cleaning. The advantages of one or more cleaning methods can ensure the thorough cleaning of the surface of the hand model, and can be appropriately adjusted and optimized according to factors such as the material of the hand model, the type of stains and the cleaning requirements.

[0050] Step 2, preparing a latex mixture, wherein the latex mixture can be prepared by mixing latex, a vulcanizing agent, an accelerator, a stabilizer, etc. together in a required proportion according to actual needs, and stirring evenly. The specific proportions are known in the art and will not be described in detail herein.

[0051] Step 3, immerse the pretreated hand model into the prepared latex mixture, so that the surface of the hand model is covered with the latex to form a first layer of latex film on the surface of the hand model, wherein the chemical coating and the latex mixture react, and the solvent evaporates to turn the latex into a gel, i.e., the first layer of latex film. The immersion time and the temperature of the latex mixture in step 3 need to be comprehensively considered and determined according to the actual situation. In actual production, these parameters can be continuously optimized through experiments and debugging, for example, the immersion time is 20 seconds, and the temperature of the latex mixture is 60°.

[0052] Step 4, immerse the hand model coated with latex again into the prepared latex mixture, and control the immersion depth, and immerse the remaining four fingers except the thumb for the second time to form a second layer of latex film on the four fingers; wherein, after step S3 is completed, step S4 is performed at an interval of 20 minutes.

[0053] It should be noted that after completing step 3, execute step 4 every 20 minutes. Figure 3 , Figure 3 The two curves in the middle are experiments on the tensile force of medical gloves. The first curve is the tensile breaking force of the double-layer latex film sample prepared by coating the first layer of latex with the second layer of latex after an interval of 20 minutes, which is 15.48N. The second curve is the tensile breaking force of the double-layer latex film sample prepared by coating the first layer of latex with the second layer of latex after an interval of 20 minutes, which is 18.54N. According to the research results, the medical gloves prepared by this double-layer coating process with an interval of 20 minutes have an average tensile breaking force of 17.01N.

[0054] The thickness of the first latex film and the second latex film is adjusted by adjusting the viscosity of the latex liquid.

[0055] It is understood that, generally speaking, the strength of the same material is proportional to its thickness, so the degree of local strength enhancement of medical gloves can be determined by thickness to a certain extent. The thickness of medical gloves can be achieved by adjusting the viscosity of latex liquid, so by adjusting the viscosity of the reinforcing latex liquid, latex of different thicknesses can be added locally to the medical gloves, thereby improving the strength of the medical gloves. Therefore, this method can achieve the goal of increasing the local strength of medical gloves by 10%-100%.

[0056] As a preferred technical solution, the method for preparing medical gloves in this embodiment further includes the following steps:

[0057] Step 5, drying the hand mold after the secondary emulsion coating, so that the first layer of latex film and the second layer of latex film are completely cured to form medical gloves, wherein the drying time and drying time can be set according to actual conditions, for example, the drying time can be 45 minutes, and the drying temperature can be 80°.

[0058] As a possible situation, in order to better improve the drying effect of the hand mold, the hand mold can be rotated in the drying box to ensure the uniformity of the drying of the hand mold.

[0059] Step 6, curling the formed medical gloves, wherein a plurality of brush wheels with an inclined angle are arranged on the medical glove preparation line, so that the medical gloves are scraped against the brush wheels when passing through the brush wheels, thereby causing curling to form at the cuffs of the medical gloves. The formed medical gloves can also be curled manually, wherein curling refers to curling the cuffs of the medical gloves toward the fingers to form the desired curling effect.

[0060] Step 7, peeling off the curled medical gloves from the hand mold.

[0061] Step 8, testing the stripped medical gloves, wherein the testing in step 8 includes one or more of the stretching, inflation and water filling tests, that is, in actual operation, the above test methods can be used in combination as needed to comprehensively evaluate the performance of the gloves. For example, a stretching test can be performed first to evaluate the strength and elongation of the gloves, then an inflation test can be performed to check the air tightness and integrity of the gloves, and finally a water filling test can be performed to verify the waterproof performance of the gloves. Through this series of tests, it can be ensured that the stripped medical gloves meet the relevant quality standards and safety requirements, providing safe and reliable hand protection for medical staff.

[0062] Example 2

[0063] The difference between the method for preparing medical gloves in the embodiment of the present invention and that in the embodiment 1 is that step 4 is performed after step 3 at an interval of 60 minutes. The method for preparing medical gloves may include the following steps:

[0064] Step 1, pre-treating the hand model, wherein the pre-treating of the hand model includes: cleaning the hand model, drying the cleaned hand model, and immersing the dried hand model in a chemical pool, so that a chemical coating adheres to the surface of the hand model, wherein the chemical coating is a solvent that enhances the adhesion of latex.

[0065] Among them, cleaning the hand mold can include one or more of washing the hand mold with soap water, washing with bleach, cleaning with a brush and washing with hot water.

[0066] Step 2: prepare the latex mixture.

[0067] Step 3, immersing the pretreated hand mold into the prepared latex mixture, so that the surface of the hand mold is covered with the latex to form a first layer of latex film on the surface of the hand mold.

[0068] Step 4, immerse the hand model coated with latex again into the prepared latex mixture, and control the immersion depth, and immerse the remaining four fingers except the thumb for a second time to form a second layer of latex film on the four fingers; wherein, step 4 is performed at an interval of 60 minutes after step 3 is completed.

[0069] It should be noted that after completing step 3, step 4 should be performed every 60 minutes. Figure 4 , Figure 4 The two curves in the middle are experiments on the tensile force of medical gloves. The first curve is the tensile breaking force of the double-layer latex film sample prepared by coating the first layer of latex with the second layer of latex after an interval of 60 minutes, which is 17.52N. The second curve is the tensile breaking force of the double-layer latex film sample prepared by coating the first layer of latex with the second layer of latex after an interval of 60 minutes, which is 16.71N. According to the research results, the medical gloves prepared by this double-layer coating process with an interval of 60 minutes have an average tensile breaking force of 17.115N.

[0070] The thickness of the first latex film and the second latex film is adjusted by adjusting the viscosity of the latex liquid.

[0071] Step 5, drying the hand mold after the second latex coating, so that the first layer of latex film and the second layer of latex film are completely cured to form a medical glove.

[0072] Step 6, curling the formed medical gloves.

[0073] Step 7, peeling off the curled medical gloves from the hand mold.

[0074] Step 8, testing the stripped medical gloves, wherein the testing in step 8 includes one or more of stretching, inflation and water filling tests.

[0075] Example 3

[0076] The difference between the method for preparing medical gloves in the embodiment of the present invention and that in the embodiment 1 is that step 4 is performed after step 3 at an interval of 0 minutes. The method for preparing medical gloves may include the following steps:

[0077] Step 1, pre-treating the hand model, wherein the pre-treating of the hand model includes: cleaning the hand model, drying the cleaned hand model, and immersing the dried hand model in a chemical pool, so that a chemical coating adheres to the surface of the hand model, wherein the chemical coating is a solvent that enhances the adhesion of latex.

[0078] Among them, cleaning the hand mold can include one or more of washing the hand mold with soap water, washing with bleach, cleaning with a brush and washing with hot water.

[0079] Step 2: prepare the latex mixture.

[0080] Step 3, immersing the pretreated hand mold into the prepared latex mixture, so that the surface of the hand mold is covered with the latex to form a first layer of latex film on the surface of the hand mold.

[0081] Step 4, immerse the hand model coated with latex again into the prepared latex mixture, and control the immersion depth, and immerse the remaining four fingers except the thumb for the second time to form a second layer of latex film on the four fingers; after step S3 is completed, perform step S4 at an interval of 0 minutes.

[0082] It should be noted that step 4 is executed at an interval of 0 minutes after step 3 is completed, that is, step 4 is executed immediately after step 3 is completed, that is, step 4 is performed continuously after step 3 is completed, and the second layer is coated immediately after the first layer of latex film is coated, so that the obtained double-layer latex film can exhibit excellent physical properties.

[0083] Please refer to Figure 5 , Figure 5 The two curves in the figure are the tensile force experiments for medical gloves. The first curve is the tensile breaking force of the double-layer latex film sample prepared by immediately coating the second layer of latex after the first layer of latex measured in the first test, which is 19.56N. The second curve is the tensile breaking force of the double-layer latex film sample prepared by immediately coating the second layer of latex after the first layer of latex measured in the second test, which is 21.39N. According to the research results, the tensile breaking force of the double-layer film of the medical gloves prepared by the double-layer coating process of immediately performing step 4 after step 3 is 20.475N, thereby achieving the effect of improving the strength and cutting resistance of the medical gloves at the key stress-bearing parts. This value not only reflects the high-strength characteristics of the latex film, but also verifies the effectiveness of the continuous coating process in improving the overall durability and protective performance of the gloves. The prepared medical gloves not only enhance the strength and cutting resistance of the other four fingers except the thumb, but also ensure the overall flexibility of the medical gloves.

[0084] The thickness of the first latex film and the second latex film is adjusted by adjusting the viscosity of the latex liquid.

[0085] Step 5, drying the hand mold after the second latex coating, so that the first layer of latex film and the second layer of latex film are completely cured to form a medical glove.

[0086] Step 6, curling the formed medical gloves.

[0087] Step 7, peeling off the curled medical gloves from the hand mold.

[0088] Step 8, testing the stripped medical gloves, wherein the testing in step 8 includes one or more of stretching, inflation and water filling tests.

[0089] Thus, the mechanical properties of the latex film after the second latex coating at different time intervals (0min, 20min, 60min) can be obtained. The research results show that the tensile breaking force of the double-layer film prepared by coating the second layer immediately after the first layer of latex coating is 20.475N, which is significantly better than 17.01N at an interval of 20min and 17.115N at an interval of 60min, as well as 8.9N of the single-layer latex medical gloves in the reference group.

[0090] Therefore, the composite film prepared by coating the second layer of latex in step 4 immediately after step 3 is completed is not a double layer in the true sense, but actually a thickened layer of film, so that the latex after two coatings can be well combined. When there is a certain interval between the front and back layers, the two layers of film are not tightly combined, and there is inhomogeneity between the films, so its mechanical properties are not as good as the sample coated with the second layer of latex immediately. Therefore, the preparation method of medical gloves implemented by the first aspect of the present invention is adopted to increase the thickness of the local area of ​​the medical gloves, greatly improve its cutting resistance, and enhance the protection of medical staff.

[0091] The partially reinforced medical gloves of the second embodiment of the present invention are prepared by the medical gloves preparation method of the first embodiment of the present invention, and the remaining four fingers of the partially reinforced medical gloves except the thumb have a double-layer latex structure.

[0092] In summary, the medical gloves preparation method and partially reinforced medical gloves of the embodiments of the present invention, through improvements in the preparation process, can not only effectively improve the strength and cutting resistance of the medical gloves at key stress-bearing parts and extend the service life, but also ensure the flexibility of medical staff during surgical operations, and at the same time, achieve process simplification and cost reduction.

[0093] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0094] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for preparing medical gloves, characterized in that: The steps include: S1: Preprocessing the hand model. The preprocessing steps of the hand model include: S11: cleaning the hand model, wherein the cleaning of the hand model includes sequentially cleaning the hand model with soap water, bleach, brush and hot water; S12: Drying the cleaned hand model; S13: immersing the dried hand model in a chemical bath so that a chemical coating adheres to the surface of the hand model, and the liquid in the chemical bath is heated to 70° C.; S2: prepare latex mixture; S3: immersing the pretreated hand model into the prepared latex mixture so that the surface of the hand model is covered with the latex to form a first layer of latex film on the surface of the hand model; S4: immersing the hand model coated with latex again into the prepared latex mixture, and controlling the immersion depth, and immersing the remaining four fingers except the thumb for a second time to form a second layer of latex film on the four fingers; wherein, After step S3 is completed, step S4 is performed at an interval of 0 minutes, and the thickness of the first latex film layer and the second latex film layer is adjusted by adjusting the viscosity of the latex liquid.

2. The method for preparing medical gloves according to claim 1, characterized in that: The chemical coating is a solvent that enhances the adhesion of the latex.

3. The method for preparing medical gloves according to claim 1, characterized in that: Also includes: S5: drying the hand mold after the second latex coating to completely solidify the first latex film layer and the second latex film layer to form a medical glove.

4. The method for preparing medical gloves according to claim 1, characterized in that: Also includes: S6: performing crimping processing on the formed medical gloves; S7: peeling the medical gloves after the curling process from the hand mold; S8: Test the stripped medical gloves.

5. The method for preparing medical gloves according to claim 4, characterized in that: The detection in step S8 includes one or more of stretching, inflation and water filling tests.

6. A partially enhanced medical glove, characterized in that: The partially reinforced medical gloves are prepared by the method for preparing medical gloves according to any one of claims 1 to 5, and the remaining four fingers of the partially reinforced medical gloves except the thumb have a double-layer latex structure.

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