Barrier pad, manufacturing mold and manufacturing method for laparoscopic surgery

Abstract

The present invention relates to the field of medical device technology, and specifically to a barrier pad, a manufacturing mold and a manufacturing method for laparoscopic surgery. The barrier pad includes a connecting piece, a connecting piece and at least two cavities; of the two adjacent cavities, the front cavities are the first cavities and the rear cavities are the second cavities; the first cavities have a first cavity and the second cavities have a second cavity; the connecting piece connects the first cavities and the second cavities, and the connecting piece is used to connect the first cavity and the second cavity; when the air pressure on the connecting piece is less than a threshold value, the connecting piece can maintain a closed state, and the first cavity and the second cavity are in an isolated state; when the air pressure on the connecting piece is greater than a threshold value, the connecting piece can maintain an open state, and the first cavity and the second cavity are in a connected state; the connecting piece connects the outer wall of the first cavity and the outer wall of the second cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a barrier pad used for laparoscopic surgery, a manufacturing mold and a manufacturing method. Background Art

[0002] Laparoscopic surgery is a minimally invasive surgical method. With the development of laparoscopic instrument manufacturing technology and the improvement of doctors' laparoscopic surgical operation capabilities, many traditional open surgeries have now been replaced by laparoscopic surgery.

[0003] For laparoscopic surgery in the upper abdomen, especially for liver surgery, the liver needs to be separated from its surrounding tissues, and then the separated tissues and liver need to be blocked by means such as sacs to prevent the surrounding tissues from affecting the surgery. In addition, since organs such as the small intestine in the lower abdomen can easily slide to the upper abdomen and affect the surgical field of view, it is also necessary to block the organs in the lower abdomen with means such as sacs.

[0004] In the above blocking process, different sized cavities need to be used, and the number and size of cavities need to be adjusted according to the progress of the operation. Since the opening in laparoscopic surgery is small and the operation is limited, the inconvenience of using the cavities in the above process greatly increases the operation time of the cavities, causing a burden to the surgeon; and prolongs the overall operation time, increasing the surgical risk of the patient.

[0005] The information disclosed in this background section is only intended to enhance understanding of the overall background of the invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide a barrier pad for laparoscopic surgery in view of the problem that the existing cavities are inconvenient to use in laparoscopic surgery. The barrier pad is provided with a plurality of cavities, which are connected by connecting pieces, and the outer walls are connected as a whole by connecting pieces. The volume and shape of the barrier pad can be flexibly adjusted according to the part to be blocked by controlling the amount of cavities to be inflated, and can be suitable for various blocking needs in laparoscopic surgery.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A barrier pad for laparoscopic surgery, comprising a connecting piece, a connecting piece and at least two cavities; of the two adjacent cavities, the front cavity is a first cavity and the rear cavity is a second cavity;

[0009] The first cavity capsule has a first cavity, and the second cavity capsule has a second cavity; the connecting piece connects the first cavity capsule and the second cavity capsule, and the connecting piece is used to connect the first cavity and the second cavity;

[0010] When the air pressure applied to the connecting piece is less than a threshold value, the connecting piece can maintain a closed state, and the first cavity and the second cavity are in an isolated state;

[0011] When the air pressure on the connecting piece is greater than a threshold, the connecting piece can remain in an open state, and the first cavity and the second cavity are in a connected state;

[0012] The connecting member connects the outer side wall of the first cavity and the outer side wall of the second cavity.

[0013] The cavities are connected end to end and arranged in sequence.

[0014] When there are more than two cavities, a connecting piece is used to control the pressure of the first cavity. When the pressure is less than a threshold, only the first cavity is inflated. When more cavities are needed, the pressure of the first cavity is increased. When the pressure is greater than the threshold, the connecting piece between the first cavity and the second cavity changes from a closed state to an open state, and the second cavity begins to inflate. Multiple cavities can be inflated in sequence as needed to increase the area of ​​the barrier pad inflation support to adapt to different barrier positions. The connecting piece connects multiple cavities into one, so that the barrier pad remains connected as a whole after the multiple cavities are inflated to form a complete barrier surface. When a block-shaped barrier with a certain thickness is required, the barrier pad can be folded along the connecting piece, and multiple cavities overlap to form a barrier with a certain thickness. Any cavity can be inflated by connecting it to an external inflation device through a pipeline. After the operation is completed, the gas in the cavity is released, the volume of the barrier pad is reduced, and it can be taken out from the surgical opening.

[0015] In conclusion, the barrier pad for laparoscopic surgery of the present invention can flexibly adjust the number of inflatable cavities, thereby adjusting the shape and volume of the barrier pad, and can be applied to barrier operations in various situations, making it convenient for surgeons to operate and reducing the operation time.

[0016] As a preferred solution of the present invention, the connecting piece includes a connecting tube and an adhesive layer; the adhesive layer is located inside the connecting tube and can bond the inside of the connecting tube.

[0017] By using the adhesive layer and the connecting tube to form a connecting piece, when the air pressure in the first chamber is relatively low, the adhesive layer will adhere the inner wall of the connecting tube together, and gas cannot pass through the connecting piece.

[0018] As a preferred solution of the present invention, the connecting piece is provided with a tear line.

[0019] By setting tear lines, the shape of the barrier pad can be adjusted by tearing the tear lines when the cavity is inflated; after the operation is completed, all the tear lines can be torn off, so that the entire barrier pad is transformed into a strip structure connected by the cavity and the connecting piece in sequence. The strip structure has a smaller cross-section and is easier to remove from the surgical opening.

[0020] As a preferred embodiment of the present invention, the cavity capsule is a strip-shaped cavity capsule, and the cavity capsule and the connecting piece are arranged in a serpentine shape after being combined, and the connecting piece is connected to the outer side wall of the adjacent cavity capsule.

[0021] The entire barrier pad is quadrilateral, preferably square or rectangular. It can be easily adjusted to a block structure by rolling and folding the barrier pad. At the same time, the tear line in the middle is torn open, and it can be used as two barrier pads.

[0022] As a preferred embodiment of the present invention, the cavity capsules and the connecting piece are arranged in a first spiral shape after being combined, the connecting piece is in a second spiral shape, and the connecting piece is connected to the outer side walls of adjacent cavity capsules.

[0023] The entire barrier pad is circular, and the connector connects all the cavities into a whole, which is conducive to maintaining a complete barrier surface.

[0024] As a preferred embodiment of the present invention, at least one of the bladders is connected to an inflation tube.

[0025] When the barrier pad is placed in the human body, the inflation port of the inflation tube is left outside the human body for connection with an external inflation device.

[0026] A mold for making the barrier pad for laparoscopic surgery, comprising a plate-shaped structural member, the structural member having an extrusion surface, the extrusion surface being provided with a first protrusion, a second protrusion, a first groove and a second groove;

[0027] The first protrusion is formed corresponding to the cavity wall of the cavity and the connecting piece;

[0028] The second protrusion is corresponding to the tear line molding;

[0029] The height of the second protrusion is greater than the height of the first protrusion;

[0030] The first groove corresponds to the cavity forming of the cavity capsule;

[0031] The second groove is corresponding to the forming of the connecting piece;

[0032] The depth of the first groove is greater than the depth of the second groove.

[0033] When manufacturing a barrier pad without a tear line, the second protrusion in the manufacturing mold can be omitted.

[0034] The barrier pad is manufactured by laminating two films and a film using the above-mentioned manufacturing mold. The shape of the manufacturing mold can be rectangular or circular, and the manufacturing is performed according to the structure of the above-mentioned quadrilateral or circular barrier pad.

[0035] A method for making the barrier pad for laparoscopic surgery comprises the following steps:

[0036] S1, select films and sheets that meet medical standards;

[0037] S2, laying out the first film; placing the film at the position corresponding to the connecting piece;

[0038] S3, covering the semi-finished product obtained in step S2 with a second film;

[0039] S4, using the mold as described above, pressing the first film and the second film together to obtain the barrier pad for laparoscopic surgery.

[0040] By using the above-mentioned manufacturing mold and manufacturing method, the manufacturing of the barrier pad can be conveniently realized, and the manufacturing cost is low, which is conducive to promotion and application.

[0041] As a preferred embodiment of the present invention, the film is made of PE, PP, PET or PU.

[0042] As a preferred embodiment of the present invention, the film is a film made of non-toxic acrylic coating, pure natural maleic glue, medical non-toxic solvent glue or medical non-toxic water emulsion.

[0043] The film is a film prefabricated in a sheet shape, and can also be formed by coating glue on a first film in a coating manner.

[0044] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0045] 1. The barrier pad for laparoscopic surgery of the present invention can flexibly adjust the number of inflated cavities by connecting multiple cavities with a connecting piece and connecting the outer walls of multiple cavities with a connecting piece, and a tear line is set on the connecting piece to adjust the volume and shape of the barrier pad, so that the barrier pad is suitable for blocking operations in various situations. During use, only the same cavity needs to be inflated, which is convenient for the operator to operate and reduces the operation time.

[0046] 2. The manufacturing mold and manufacturing method of the barrier pad for laparoscopic surgery of the present invention provide a simple and low-cost manufacturing method, which is conducive to the popularization and application of the barrier pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1It is a schematic structural diagram of a barrier pad for laparoscopic surgery of the present invention.

[0048] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional view at AA.

[0049] Figure 3 yes Figure 1 Schematic diagram of the cross-section view at BB.

[0050] Figure 4 yes Figure 3 Schematic diagram of the enlarged view at circle C.

[0051] Figure 5 yes Figure 4 Schematic diagram of the structure when the connecting piece is in the open state.

[0052] Figure 6 It is a schematic cross-sectional view of the connecting piece of the barrier pad for laparoscopic surgery of the present invention (closed state).

[0053] Figure 7 It is a schematic cross-sectional view of the connecting piece of the barrier pad for laparoscopic surgery of the present invention (in an open state).

[0054] Figure 8 It is a schematic structural diagram of another solution of the barrier pad for laparoscopic surgery of the present invention.

[0055] Fig. 9 It is a structural schematic diagram of a mold for making a barrier pad for laparoscopic surgery according to the present invention.

[0056] Icons: 1-cavity; 2-connecting piece; 21-connecting tube; 22-adhesive layer; 3-connecting piece; 31-tear line; 4-inflating tube; 51-first protrusion; 52-second protrusion; 53-first groove; 54-second groove. DETAILED DESCRIPTION

[0057] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0058] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0059] Example 1

[0060] A barrier pad for laparoscopic surgery, such as Figure 1-3 As shown, it includes a connecting piece 2, a connecting piece 3 and at least two cavity capsules 1 arranged in sequence; among the two adjacent cavity capsules 1, the cavity capsule in front is the first cavity capsule, and the cavity capsule 1 in the back is the second cavity capsule;

[0061] The first cavity capsule has a first cavity, and the second cavity capsule has a second cavity; the connecting piece 2 connects the first cavity capsule and the second cavity capsule, and the connecting piece 2 is used to connect the first cavity and the second cavity;

[0062] When the air pressure on the connecting piece 2 is less than the threshold value, the connecting piece 2 can maintain a closed state. Figure 4 As shown, the first cavity and the second cavity are in an isolated state;

[0063] When the air pressure on the connecting piece 2 is greater than a threshold value, the connecting piece 2 can remain in an open state. Figure 5 As shown, the first cavity and the second cavity are in a communicating state;

[0064] The connecting member 3 connects the outer wall of the first cavity and the outer wall of the second cavity.

[0065] The connecting piece 3 is provided with a tear line 31. By providing the tear line 31, when the cavity 1 is inflated, the shape of the barrier pad can be adjusted by tearing the tear line 31; after the operation is completed, all the tear lines 31 can be torn off, so that the entire barrier pad becomes a strip structure connected by the cavity 1 and the connecting piece 2 in sequence. The strip structure has a smaller cross-section and is easier to be taken out from the surgical opening.

[0066] At least one of the chambers 1 is connected to an inflation tube 4 .

[0067] like Figure 1 As shown, the cavity capsule 1 is a strip-shaped cavity capsule 1 , and the cavity capsule 1 and the connecting member 2 are arranged in a serpentine shape after being combined, and the connecting member 3 is connected to the outer side wall of the adjacent cavity capsule 1 .

[0068] The entire barrier pad is rectangular and can be easily adjusted to a block structure by rolling and folding the barrier pad. At the same time, the tear line 31 in the middle is torn open, and it can be used as two barrier pads.

[0069] The connecting piece 2 includes a connecting pipe 21 and an adhesive layer 22; Figure 6 As shown, the adhesive layer 22 is located inside the connecting tube 21 and can bond the inside of the connecting tube 21 .

[0070] By using the adhesive layer 22 and the connecting tube 21 to form the connecting piece 2, when the air pressure in the first chamber is low, the adhesive layer 22 adheres the inner wall of the connecting tube 21 to form a whole, and the gas cannot pass through the connecting piece 2. Figure 6 When the air pressure in the first cavity is high, the adhesive layer 22 is separated from a portion of the inner wall of the connecting tube 21, as shown in FIG. Figure 7As shown, the connecting tube 21 can pass gas, and the gas in the first cavity enters into the second cavity, and the second cavity begins to inflate.

[0071] In another solution, Figure 8 As shown, the chamber 1 and the connecting member 2 are arranged in a first spiral shape after being combined, and the connecting member 3 is a second spiral shape, and the connecting member 3 is connected to the outer side wall of the adjacent chamber 1. The entire barrier pad is circular, and the connecting member 3 connects all the chambers 1 as a whole, which is conducive to maintaining a complete barrier surface.

[0072] When the barrier pad is placed in the human body, the inflation port of the inflation tube 4 is left on the outer wall of the human body for connection with an external inflation device.

[0073] Example 2

[0074] A production mold for the rectangular barrier pad of Example 1, such as Fig. 9 As shown, it comprises a plate-shaped structural member, the structural member has an extrusion surface, and the extrusion surface is provided with a first protrusion 51, a second protrusion 52, a first groove 53 and a second groove 54;

[0075] The first protrusion 51 is formed corresponding to the cavity wall of the cavity 1 and the connecting member 3;

[0076] The second protrusion 52 is formed corresponding to the tear line 31;

[0077] The height of the second protrusion 52 is greater than the height of the first protrusion 51;

[0078] The first groove 53 corresponds to the cavity forming of the cavity capsule;

[0079] The second groove 54 is formed corresponding to the connecting piece 2;

[0080] The depth of the first groove 53 is greater than the depth of the second groove 54 .

[0081] The barrier pad is manufactured by laminating two films and a film using the above-mentioned manufacturing mold. When manufacturing a circular barrier pad, the shape of the manufacturing mold and the positions of the first protrusion, the second protrusion, the first groove and the second groove are adjusted according to the structure of the circular barrier pad of Example 1.

[0082] Example 3

[0083] A method for making the barrier pad for laparoscopic surgery comprises the following steps:

[0084] S1, select films and sheets that meet medical standards;

[0085] S2, laying out the first film; placing the film at the position corresponding to the connecting piece;

[0086] S3, covering the semi-finished product obtained in step S2 with a second film;

[0087] S4, using the manufacturing mold in Example 2, pressing the first film and the second film together to obtain the barrier pad for laparoscopic surgery.

[0088] By using the above-mentioned manufacturing mold and manufacturing method, the manufacturing of the barrier pad can be easily realized, and the manufacturing cost is low, which is conducive to promotion and application.

[0089] The film is a film made of PE, PP, PET or PU.

[0090] The film is made of non-toxic acrylic acid coating, pure natural maleic gum or medical non-toxic water latex.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A barrier pad for laparoscopic surgery, characterized in that: The invention comprises a connecting piece (2), a connecting piece (3) and at least two chambers (1); of the two adjacent chambers (1), the chamber in front is a first chamber and the chamber in the back is a second chamber; the first chamber has a first cavity and the second chamber has a second cavity; the connecting piece (2) connects the first chamber and the second chamber, and the connecting piece (2) is used to connect the first cavity and the second cavity; when the air pressure applied to the connecting piece (2) is less than a threshold value, the connecting piece (2) can maintain a closed state, and the first cavity and the second cavity are in an isolated state; when the air pressure applied to the connecting piece (2) is greater than the threshold value, the connecting piece (2) can maintain an open state, and the first cavity and the second cavity are in a connected state; the connecting piece (3) is used to connect the outer wall of the first chamber with the outer wall of the second chamber.

2. The barrier pad for laparoscopic surgery according to claim 1, characterized in that: The connecting piece (2) comprises a connecting tube (21) and an adhesive layer (22); the adhesive layer (22) is located inside the connecting tube (21) and is capable of bonding the inside of the connecting tube (21).

3. The barrier pad for laparoscopic surgery according to claim 1, characterized in that: The connecting piece (3) is provided with a tear line (31).

4. The barrier pad for laparoscopic surgery according to claim 1, characterized in that: The cavity capsule (1) is a strip-shaped cavity capsule, and the cavity capsule (1) and the connecting member (2) are arranged in a serpentine shape after being combined, and the connecting member (3) is connected to the outer side wall of the adjacent cavity capsule (1).

5. The barrier pad for laparoscopic surgery according to claim 1, characterized in that: The cavity capsule (1) and the connecting piece (2) are arranged in a first spiral shape after being combined, and the connecting piece (3) is in a second spiral shape. The connecting piece (3) is connected to the outer side wall of the adjacent cavity capsule (1).

6. The barrier pad for laparoscopic surgery according to claim 1, characterized in that: At least one of the chamber balloons (1) is connected to an inflation tube (4).

7. A mold for making a barrier pad for laparoscopic surgery as claimed in any one of claims 1 to 6, characterized in that: It comprises a plate-shaped structural member, the structural member having an extrusion surface, the extrusion surface being provided with a first protrusion (51), a second protrusion (52), a first groove (53) and a second groove (54); The first protrusion (51) is formed corresponding to the cavity wall of the cavity (1) and the connecting piece (3); The second protrusion (52) is formed corresponding to the tear line (31); The first groove (53) corresponds to the cavity forming of the cavity capsule (1); The second groove (54) is formed corresponding to the connecting piece (2); The depth of the first groove (53) is greater than the depth of the second groove (54).

8. A method for manufacturing a barrier pad for laparoscopic surgery as claimed in any one of claims 1 to 6, characterized in that: The method comprises the following steps: S1, selecting a film and a film that meet medical standards; S2, laying out the first film; placing the film at the position corresponding to the connecting piece; S3, covering the semi-finished product obtained in step S2 with a second film; S4, using the manufacturing mold as described in claim 7, pressing the first film and the second film together to obtain the barrier pad for laparoscopic surgery.

9. The method for making a barrier pad for laparoscopic surgery according to claim 8, characterized in that: The film is a film made of PE, PP, PET or PU.

10. The method for making a barrier pad for laparoscopic surgery according to claim 8, characterized in that: The film is made of non-toxic acrylic coating, pure natural maleic glue, medical non-toxic solvent glue or medical non-toxic water emulsion.

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