Multi-layer composite anti-leakage degradable incision protection sleeve

Abstract

The invention relates to the technical field of medical instruments, and discloses a multi-layer composite anti-leakage degradable incision protection sleeve which comprises a protection sleeve body and a sealing cover, the protection sleeve body comprises a top ring, a flexible channel and a bottom ring, a connecting assembly is arranged on the inner side of the flexible channel, and the connecting assembly comprises a connecting ring; a flexible gasket is fixedly arranged on the lower surface of the connecting ring, an annular groove is formed in the outer side wall of the connecting ring, a limiting ring is arranged on the outer side of the annular groove, the flexible channel penetrates through the limiting ring and the annular groove, the flexible channel and the connecting ring are connected through the limiting ring to prevent the connecting ring from falling off, and the sealing cover is fixedly arranged on the connecting ring. And a plurality of operation holes are formed in the surface of the sealing cover. The sealing cover is fixedly arranged on the connecting ring in advance, so that the sealing cover does not need to be installed during use, the preparation time of an operation is saved, installation is more convenient, and wrapping of the flexible channel by the top ring is not affected.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a multi-layer composite anti-leakage and degradable incision protective cover. Background Art

[0002] During a surgical operation, after the doctor completes the operation, the patient needs to be observed for a certain period of time. When using a laparoscope to observe the patient's abdominal cavity, the patient's abdominal cavity needs to maintain a pneumoperitoneum state. The method commonly used by doctors is to re-suture the incision to form a pneumoperitoneum, and then observe through a laparoscope. This method requires the doctor to repeatedly open the incision, which will increase the probability of contamination at the incision and cause the patient's wound infection. At the same time, it prolongs the operation time and reduces the efficiency of the operation.

[0003] After searching, the publication number CN115581485B disclosed a disposable incision protective sleeve airtight cover, which includes a main body, the main body is disc-shaped, provided with a through operating hole, and a connecting portion at its edge. The operating hole is provided with a sealing component capable of closing the operating hole; the sealing component can keep the operating hole closed before and after the surgical instrument passes through the operating hole; the connecting portion is annular, and its size is adapted to the outer port of the disposable protective sleeve; the longitudinal section of the connecting portion is an elliptical shape with an open lower end, which can be tightly clipped onto the edge of the disposable protective sleeve to achieve sealing of the incision. The present invention can make the sealing installation of the incision protective sleeve more convenient and firm, ensure the formation of a stable pneumoperitoneum, and facilitate the doctor to observe the situation in the patient's abdominal cavity. Moreover, it is also convenient to repeatedly insert and remove surgical instruments without leakage, which greatly improves the efficiency of the operation.

[0004] When the above application is used, it is necessary to first install and roll up the protective cover and then install the airtight cover, which increases the surgical preparation time. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a multi-layer composite anti-leakage and degradable incision protective cover, which solves the problem that the protective cover needs to be installed and rolled before the airtight cover is installed, which increases the preparation time for surgery.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-layer composite anti-leakage and degradable incision protective cover, comprising a protective cover body and a sealing cover, the protective cover body comprising a top ring, a flexible channel and a bottom ring, the inner side of the flexible channel is provided with a connecting component, the connecting component comprises a connecting ring, a flexible gasket is fixedly provided on the lower surface of the connecting ring, an annular groove is provided on the outer side wall of the connecting ring, a limiting ring is provided on the outer side of the annular groove, the flexible channel passes through the limiting ring and the annular groove, and the flexible channel is connected to the connecting ring through the limiting ring to prevent the connecting ring from falling off, the sealing cover is fixed on the connecting ring, a plurality of operating holes are provided on the surface of the sealing cover, an annular flexible membrane is fixedly connected to the inside of the operating hole, and a sealing ring is fixedly connected to the inner ring of the flexible membrane.

[0007] Preferably, the flexible channel is sequentially provided with an inner layer, a middle layer and an outer layer from the inside to the outside, the inner layer is a degradable elastic material layer, the middle layer is an anti-leakage barrier layer, and the outer layer is a degradable support layer.

[0008] Preferably, the degradable elastic material of the inner layer is a blend of polycaprolactone and polylactic acid, the anti-leakage barrier layer of the middle layer is a degradable polyester film, the degradable support layer of the outer layer is a blend of polybutylene succinate and polyhydroxyalkanoate, and the inner layer, the middle layer and the outer layer are connected into an integrated structure by a hot melt composite process.

[0009] Preferably, the limiting ring is an elastic ring made of rubber material, and the diameter of the elastic ring in a naturally relaxed state is smaller than the annular groove.

[0010] Preferably, the limiting ring is composed of two semicircular plates, and opposite ends of the two plates are connected by plugging.

[0011] Preferably, an opening and closing assembly is installed above the sealing cover, and two groups of operating holes are provided. The opening and closing assembly includes slides located on both sides of the operating holes. The slides are slidably connected to the sealing cover, and two pull ropes are fixedly connected to the side walls of the slide. The ends of the pull ropes away from the slide are distributed in a ring shape and are equidistantly fixed on the upper surface of the sealing ring.

[0012] Preferably, a U-shaped limiting member is provided on the outside of the pull rope, the limiting member causes the pull rope to bend, and the bottom end of the limiting member is fixedly connected to the sealing cover, and the slide plate is set to be T-shaped.

[0013] Preferably, the opening and closing assembly includes a piston cylinder, which is fixedly mounted on the upper surface of the sealing cover. Two piston cavities are symmetrically provided inside the piston cylinder. A piston rod is slidingly provided inside the piston cavity. The two ends of the piston rod located outside the piston cavity are respectively fixedly connected to two slides. An air inlet end is fixedly provided at the top of the piston cylinder.

[0014] Preferably, a shell is fixedly connected to the upper side of the sealing cover, and an opening is provided on the surface of the shell corresponding to the slide.

[0015] Preferably, a sealing head is inserted into the interior of the sealing ring, and the sealing head is configured to be T-shaped.

[0016] Working principle: Before use, the sealing cover is pre-fixed on the connecting ring, so there is no need to install the sealing cover during use, which saves the preparation time for surgery and makes installation more convenient. When in use, the flexible channel is wrapped by rolling the top ring to adjust the length of the flexible channel.

[0017] The present invention provides a multi-layer composite anti-leakage and degradable incision protective cover. It has the following beneficial effects: 1. The present invention pre-fixes the sealing cover on the connecting ring, so that the sealing cover does not need to be installed during use, which saves the preparation time for surgery and is more convenient to install. It does not affect the flexible channel wrapped by the top ring. The sealing cover is used to seal the protective cover body to ensure the formation of a stable pneumoperitoneum, which is convenient for doctors to observe the situation in the patient's abdominal cavity.

[0018] 2. The inner layer, middle layer and outer layer of the flexible channel of the present invention are all made of degradable materials. They do not need to be removed after use and can be naturally degraded in the body, reducing the patient's pain and infection risk. It is suitable for protecting various surgical incisions.

[0019] 3. The present invention pushes the slide plate to make the four groups of pull ropes form a 90° angle to evenly apply outward pulling force to the sealing ring, so that the sealing ring forms a square ring opening, further expanding the opening range of the sealing ring to facilitate the insertion and removal of surgical instruments.

[0020] 4. The present invention injects gas into the piston cavity, and the gas pushes the piston rod to move outward, and the piston rod drives the slide plate to slide away from the sealing ring, so that the sealing ring can be opened quickly and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention; Figure 2 This is a schematic diagram of the main structure of the protective cover of the present invention; Figure 3 is a schematic cross-sectional view of the flexible channel of the present invention; Figure 4 Schematic diagram of the limiting ring structure of the present invention; Figure 5 This is another structural diagram of the limiting ring of the present invention; Figure 6 This is a schematic diagram of the connection between the sealing cover and the connecting ring of the present invention; Figure 7 It is a schematic diagram of the structure of the skateboard of the present invention; Figure 8 It is a schematic diagram of the piston cylinder structure of the present invention; Figure 9 It is a schematic cross-sectional view of the piston cylinder of the present invention.

[0022] Among them, 1. Protective cover body; 11. Top ring; 12. Flexible channel; 13. Bottom ring; 2. Sealing cover; 3. Connecting assembly; 31. Connecting ring; 32. Annular groove; 33. Limiting ring; 34. Flexible gasket; 331. Elastic ring; 332. Plate; 4. Operating hole; 5. Flexible membrane; 6. Sealing ring; 7. Opening and closing assembly; 71. Slide plate; 72. Pull rope; 73. Limiting piece; 74. Piston cylinder; 75. Piston rod; 76. Inlet end; 77. Outer shell; 78. Opening; 8. Sealing head. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] Example 1: Please refer to the attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides a multi-layer composite anti-leakage and degradable incision protective cover, including a protective cover body 1 and a sealing cover 2. The protective cover body 1 includes a top ring 11, a flexible channel 12 and a bottom ring 13 fixedly connected in sequence. A connecting component 3 is provided on the inner side of the flexible channel 12. The connecting component 3 includes a connecting ring 31. The connecting ring 31 is made of lightweight material to reduce the downward pressure on the skin tissue during use. A flexible gasket 34 is fixedly provided on the lower surface of the connecting ring 31. An annular groove 32 is provided on the outer wall of the connecting ring 31. A limiting ring 33 is provided on the outer side of the annular groove 32. The flexible channel 12 passes through the limiting ring 33 and the annular groove 32. The flexible channel 12 is connected to the connecting ring 31 through the limiting ring 33 to prevent the connecting ring 31 from falling off. The sealing cover 2 is fixed on the connecting ring 31. A plurality of operating holes 4 are provided on the surface of the sealing cover 2. An annular flexible membrane 5 is fixedly connected to the inside of the operating hole 4, and a sealing ring 6 is fixedly connected to the inner ring of the flexible membrane 5.

[0025] Specifically, the surgical instrument is passed through the sealing ring 6 at the operation hole 4 for operation. The sealing ring 6 is tightly wrapped around the outside of the surgical instrument to prevent air leakage. At the same time, the flexible membrane 5 can be deformed when the surgical instrument moves. The cooperation between the flexible membrane 5 and the sealing ring 6 improves the sealing of the operation hole 4 during surgery. The limiting ring 33 is arranged inside the annular groove 32 to connect the connecting ring 31 with the flexible channel 12. Before use, the sealing cover 2 is pre-fixed on the connecting ring 31, so that the sealing cover 2 does not need to be installed during use, saving surgical preparation time and making installation more convenient. When in use, the flexible channel 12 is wrapped by rolling the top ring 11 to adjust the length of the flexible channel 12. When the top ring 11 is rolled, the flexible channel 12 passes between the limiting ring 33 and the annular groove 32. When the flexible channel 12 is adjusted to a suitable length, the connecting ring 31 fits the human tissue through the flexible gasket 34, and the sealing cover 2 is placed above the incision. The flexible gasket 34 can reduce the squeezing of the human tissue.

[0026] Example 2: Please refer to the attached Figure 6 , which is different from the first embodiment, the sealing cover 2 and the connecting ring 31 are detachably installed by threaded connection. At the same time, the sealing cover 2 is provided with multiple types according to the number of operation holes 4, so that medical staff can replace the sealing cover 2 according to the different types of operations, thereby improving the flexibility of use. After use, the sealing cover 2 can also be disassembled and disinfected and reused to reduce costs.

[0027] Example 3: The flexible channel 12 is sequentially provided with an inner layer, a middle layer and an outer layer from the inside to the outside, the inner layer is a degradable elastic material layer, the middle layer is an anti-leakage barrier layer, and the outer layer is a degradable support layer. The degradable elastic material of the inner layer is a blend of polycaprolactone and polylactic acid, the anti-leakage barrier layer of the middle layer adopts a degradable polyester film, and the degradable support layer of the outer layer is a blend of polybutylene succinate and polyhydroxyalkanoate. The inner layer, the middle layer and the outer layer are connected into an integrated structure through a hot melt composite process.

[0028] Specifically, the inner layer is made of degradable elastic material, which can fit tightly with the incision tissue; the middle layer is an anti-leakage barrier layer, which effectively prevents liquid penetration; the outer layer is a degradable support layer, which provides structural strength. The three layers are compounded into one through a specific process, which is both anti-leakage, good fit and degradable. It does not need to be removed after use and can be naturally degraded in the body, reducing patient pain and infection risks. It is suitable for all types of surgical incision protection.

[0029] Example 4: Please refer to the attached Figure 4 The limiting ring 33 is an elastic ring 331 made of rubber material. The diameter of the elastic ring 331 in a naturally relaxed state is smaller than the annular groove 32.

[0030] Specifically, the elastic ring 331 is used to clamp the flexible channel 12 to form an annular fastening constraint. After the operation is completed, the elastic ring 331 can be stretched to be removed from the annular groove 32 and then the connecting ring 31 can be taken out.

[0031] Example 5: Please refer to the attached Figure 5 , which is different from the fourth embodiment, the limiting ring 33 is composed of two semicircular plates 332, and the opposite ends of the two plates 332 are connected by plugging.

[0032] Specifically, an annular restraint is formed by inserting two plates 332 . After the operation is completed, the plates 332 can be opened and removed from the annular groove 32 , and then the connecting ring 31 can be taken out.

[0033] Example 6: Please refer to the attached Figure 7 An opening and closing assembly 7 is installed above the sealing cover 2, and two groups of operating holes 4 are provided. The opening and closing assembly 7 includes slides 71 located on both sides of the operating hole 4. The slides 71 are slidably connected to the sealing cover 2. Two pull ropes 72 are fixedly connected to the side walls of the slide 71. The ends of the pull ropes 72 away from the slide 71 are distributed in a ring shape and are equidistantly fixed on the upper surface of the sealing ring 6.

[0034] Specifically, the sealing ring 6 is opened by pulling the pull rope 72 outward, thereby facilitating the insertion and removal of surgical instruments.

[0035] Please see the attached Figure 7 A U-shaped limiter 73 is provided on the outside of the pull rope 72. The limiter 73 bends the pull rope 72, and the bottom end of the limiter 73 is fixedly connected to the sealing cover 2. The upper part of the sealing cover 2 is fixedly connected to the shell 77. An opening 78 is provided on the surface of the shell 77 corresponding to the slide 71. The slide 71 is set to be T-shaped, and the top end of the slide 71 passes through the shell 77 through the opening 78.

[0036] Specifically, by pushing the slide plate 71 toward the side away from the sealing ring 6, the sealing ring 6 is pulled open by the pull rope 72 when the slide plate 71 slides, and the pulling direction of the pull rope 72 on the sealing ring 6 is adjusted by the limiter 73, so that the four groups of pull ropes 72 form an angle of 90° and evenly apply outward pulling force to the sealing ring 6, so that the sealing ring 6 forms a square ring opening, further expanding the opening range of the sealing ring 6 to facilitate the insertion and removal of surgical instruments.

[0037] Example 7: Please refer to the attached Figure 8 -Attached Figure 9The opening and closing assembly 7 includes a piston cylinder 74, which is fixedly mounted on the upper surface of the sealing cover 2. Two piston cavities are symmetrically provided inside the piston cylinder 74. A piston rod 75 is slidingly provided inside the piston cavity. The two ends of the piston rod 75 located outside the piston cavity are fixedly connected to the two slides 71 respectively. An air inlet end 76 is fixedly provided on the top of the piston cylinder 74. A shell 77 is fixedly connected to the top of the sealing cover 2, and the air inlet end 76 passes through the shell 77.

[0038] Specifically, the air inlet end 76 is connected to the inflation device. When the surgical instrument is inserted or removed, gas is injected into the piston cavity. The gas pushes the piston rod 75 to move outward, and the piston rod 75 drives the slide plate 71 to slide away from the sealing ring 6, so that the sealing ring 6 can be quickly opened for easy use.

[0039] Please see the attached Figure 2 A sealing head 8 is inserted into the interior of the sealing ring 6, and the sealing head 8 is set to be T-shaped.

[0040] Specifically, when the surgical instrument is pulled out from the sealing ring 6 , the sealing head 8 is inserted into the sealing ring 6 for sealing, thereby maintaining the sealing performance at the operation port.

[0041] Workflow: Before use, the sealing cover 2 is pre-fixed on the connecting ring 31, so that there is no need to install the sealing cover 2 during use, which saves the preparation time for the operation and makes the installation more convenient. When in use, the flexible channel 12 is wrapped by rolling the top ring 11 to adjust the length of the flexible channel 12.

[0042] By pushing the slide plate 71 toward the side away from the sealing ring 6, the sealing ring 6 is pulled open by the pull rope 72 when the slide plate 71 slides, and the pulling direction of the pull rope 72 on the sealing ring 6 is adjusted by the limiter 73, so that the four groups of pull ropes 72 form an angle of 90° and evenly apply outward pulling force to the sealing ring 6, so that the sealing ring 6 forms a square ring opening, further expanding the opening range of the sealing ring 6 to facilitate the insertion and removal of surgical instruments.

[0043] When inserting or removing the surgical instrument, gas is injected into the piston cavity, and the gas pushes the piston rod 75 to move outward, and the piston rod 75 drives the slide plate 71 to slide away from the sealing ring 6, so that the sealing ring 6 can be quickly opened for easy use.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite anti-leakage and degradable incision protective sleeve, comprising a protective sleeve body (1) and a sealing cover (2), wherein the protective sleeve body (1) comprises a top ring (11), a flexible channel (12) and a bottom ring (13), and is characterized in that: A connecting assembly (3) is provided on the inner side of the flexible channel (12), and the connecting assembly (3) includes a connecting ring (31). A flexible gasket (34) is fixedly provided on the lower surface of the connecting ring (31). An annular groove (32) is provided on the outer wall of the connecting ring (31), and a limiting ring (33) is provided on the outer side of the annular groove (32). The flexible channel (12) passes through the limiting ring (33) and the annular groove (32). The flexible channel (12) is connected to the connecting ring (31) through the limiting ring (33) to prevent the connecting ring (31) from falling off. The sealing cover (2) is fixed on the connecting ring (31). A plurality of operating holes (4) are provided on the surface of the sealing cover (2). An annular flexible membrane (5) is fixedly connected to the inside of the operating hole (4), and a sealing ring (6) is fixedly connected to the inner ring of the flexible membrane (5).

2. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 1, characterized in that: The flexible channel (12) is provided with an inner layer, a middle layer and an outer layer in sequence from the inside to the outside, the inner layer is a degradable elastic material layer, the middle layer is an anti-leakage barrier layer, and the outer layer is a degradable support layer.

3. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 2, characterized in that: The degradable elastic material of the inner layer is a blend of polycaprolactone and polylactic acid, the anti-leakage barrier layer of the middle layer is a degradable polyester film, and the degradable support layer of the outer layer is a blend of polybutylene succinate and polyhydroxyalkanoate. The inner layer, the middle layer and the outer layer are connected into an integrated structure through a hot-melt composite process.

4. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 1, characterized in that: The limiting ring (33) is an elastic ring (331) made of rubber material, and the diameter of the elastic ring (331) in a naturally relaxed state is smaller than the annular groove (32).

5. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 1, characterized in that: The limiting ring (33) is composed of two semicircular plates (332), and opposite ends of the two plates (332) are connected by plugging.

6. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 1, characterized in that: An opening and closing assembly (7) is installed above the sealing cover (2), and two groups of operating holes (4) are provided. The opening and closing assembly (7) includes slides (71) located on both sides of the operating hole (4), and the slides (71) are slidably connected to the sealing cover (2). Two pull ropes (72) are fixedly connected to the side walls of the slide (71), and the four groups of pull ropes (72) are distributed in a ring shape at one end away from the slide (71) and are fixedly arranged at equal intervals on the upper surface of the sealing ring (6).

7. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 6, characterized in that: A U-shaped limiting member (73) is provided on the outside of the pull rope (72), the limiting member (73) causes the pull rope (72) to bend, and the bottom end of the limiting member (73) is fixedly connected to the sealing cover (2), and the slide plate (71) is set to be T-shaped.

8. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 6, characterized in that: The opening and closing assembly (7) includes a piston cylinder (74), which is fixedly mounted on the upper surface of the sealing cover (2). Two piston cavities are symmetrically provided inside the piston cylinder (74), and a piston rod (75) is slidably provided inside the piston cavity. The two ends of the piston rod (75) located outside the piston cavity are fixedly connected to the two slides (71) respectively, and the top end of the piston cylinder (74) is fixedly provided with an air inlet end (76).

9. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 6 or 8, characterized in that: A housing (77) is fixedly connected to the upper portion of the sealing cover (2), and an opening (78) is provided on the surface of the housing (77) corresponding to the slide plate (71).

10. The multi-layer composite anti-leakage and degradable incision protective cover according to claim 1, characterized in that: A sealing head (8) is inserted into the interior of the sealing ring (6), and the sealing head (8) is configured to be T-shaped.

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