Disposable Incision Protective Sheath Airtight Cover

Abstract

The present invention relates to an airtight cover for a disposable incision protector sheath, comprising a body. The body is disc-shaped, provided with a through operation hole thereon, and a connecting portion at its edge. A sealing assembly capable of closing the operation hole is provided on the operation hole; the sealing assembly can keep the operation hole closed before and after a surgical instrument passes through the operation hole; the connecting portion is annular, and its size is adapted to the outer port of the disposable protector sheath; the longitudinal section of the connecting portion is an ellipse with an open lower end, and can be tightly clamped on the edge of the disposable protector sheath to achieve sealing of the incision. The present invention can make the sealed installation of the incision protector sheath more convenient and firm, ensure the formation of a stable pneumoperitoneum, and facilitate the doctor to observe the situation inside the patient's abdominal cavity. Moreover, it is also possible to conveniently insert and remove the surgical instrument repeatedly without leakage, greatly improving the surgical efficiency.

Description

Technical Field

[0001] The present invention relates to a medical device, in particular to a structure for closing an incision protection sheath, specifically a disposable airtight cover for an incision protection sheath. Background Art

[0002] In surgical operations, after a doctor completes the operation, the patient needs to be observed for a certain period of time postoperatively. When observing the patient's abdominal cavity using a laparoscope, the patient's abdominal cavity needs to be maintained in a pneumoperitoneum state. The common method used by doctors is to re - suture the incision to form a pneumoperitoneum and then observe through the laparoscope. This method requires the doctor to repeatedly open the incision, which increases the probability of the incision being contaminated, causes wound infection in the patient, and at the same time prolongs the operation time and reduces the operation efficiency.

[0003] Currently, an airtight cover for a disposable incision protection sheath has been developed, as Figure 1 shown. However, its bottom bends inward more, and the distance L1 is larger, making the outer ring size of the incision protection sheath much larger than the inner diameter of the bottom of the airtight cover, resulting in difficult installation for doctors. Therefore, there is an urgent need to design a medical sealing device that is convenient to install, firmly fixed, has good airtightness, and is convenient for doctors to perform surgical operations. Summary of the Invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and provide a disposable airtight cover for an incision protection sheath, which can be installed on the disposable incision protection sheath more conveniently and firmly, ensure the formation of a stable pneumoperitoneum, and facilitate the doctor to observe the situation inside the patient's abdominal cavity. Moreover, it can also facilitate the repeated insertion and removal of surgical instruments without leakage, greatly improving the operation efficiency.

[0005] The technical solution of the present invention is as follows:

[0006] A disposable airtight cover for an incision protection sheath includes a body. The body is disc - shaped and is adapted to the outer ring of the incision protection sheath. A through - hole for operation is provided on the body, and a connecting portion is provided at its edge. A sealing component capable of closing the operation hole is provided on the operation hole. The sealing component can keep the operation hole closed before and after a surgical instrument passes through the operation hole. The connecting portion is annular, its upper end is connected to the edge of the body, and its lower end is suspended. The longitudinal section of the connecting portion is an ellipse with an open bottom at the lower end, which can be tightly clamped on the outer ring of the disposable protection sheath to achieve sealing of the incision.

[0007] Further, the bottom of the body around the operation hole bulges downward.

[0008] Further, the sealing assembly includes an instrument seal and a valve seal; the instrument seal is a sheet-shaped sealing film, the size of which is equivalent to that of the operation hole, the edge of which is connected to the inner wall of the operation hole, and a through hole is provided in the center thereof; the valve seal is a duckbill valve, which is located below the instrument seal, and the upper end thereof is connected to the edge of the sealing film.

[0009] Further, the longitudinal section of the sealing film is trapezoidal, and its side is a wedge shape with a larger outer side and a smaller inner side; the top surface of the sealing film does not protrude above the top surface of the body.

[0010] Further, the diameter of the duckbill valve is equivalent to the diameter of the sealing film.

[0011] Further, reinforcing ribs are provided on the inner wall of the duckbill valve.

[0012] Further, there are six reinforcing ribs, which are symmetrically arranged on the two side walls of the duckbill valve; the reinforcing ribs on each side wall are evenly distributed.

[0013] Further, there are multiple operation holes; the distance between the operation holes is greater than the operation radius of the surgical instrument.

[0014] Further, a lip is provided on the inner wall of the connecting portion.

[0015] Further, the lip is located at the lower part of the inner wall of the connecting portion near the outside.

[0016] Advantages of the present invention:

[0017] The present invention is reasonably designed, simple in structure and convenient to use, and can more conveniently and firmly perform the sealing installation operation of the disposable incision protection sheath, 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 possible to conveniently perform repeated plugging and unplugging of the surgical instrument without leakage, greatly improving the surgical efficiency. Description of the drawings

[0018] Figure 1 is a schematic structural diagram of the prior art.

[0019] Figure 2 is a schematic top view of the appearance of the present invention.

[0020] Figure 3 is a schematic bottom view of the appearance of the present invention.

[0021] Figure 4 is a schematic longitudinal sectional view of the present invention.

[0022] Figure 5 is a cross-sectional view of the sealing assembly.

[0023] Figure 6 is a schematic diagram of the lip.

[0024] Figure 7 It is a schematic diagram of the usage state of the present invention.

[0025] Figure 8 It is a schematic diagram when the present invention has two operation holes.

[0026] Wherein L1 is the maximum distance from the bottom; 1 is the main body; 1-1 is the operation hole; 2 is the sealing assembly; 2-1 is the instrument seal; 2-2 is the valve seal; 2-3 is the reinforcing rib; 3 is the connecting part; 4 is the incision protection sleeve; 4-1 is the outer ring of the incision protection sleeve; 5 is the human tissue; 6 is the lip; 7 is the surgical instrument. Specific embodiments

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] As Figures 2 to 7 shown.

[0029] A disposable incision protection sleeve airtight cover includes a main body 1. The main body 1 is disc-shaped and is sized to fit the disposable protection sleeve 4 so as to be able to cover the incision protection sleeve. The main body 1 is provided with a through operation hole 1-1, and a connecting part 3 is provided at its edge. A sealing assembly 2 capable of closing the operation hole is provided on the operation hole 1-1. The main body 1 and the connecting part 3 are both made of materials such as silica gel. Preferably, the bottom of the main body 1 around the operation hole 1-1 bulges downward so that the thickness of this area is greater than that of other areas to enhance its support strength.

[0030] The connecting part 3 is circular ring-shaped and is arranged at the bottom of the main body 1. Its upper end is connected to the edge of the main body 1, and its lower end is suspended. The longitudinal section of the connecting part is an ellipse with an open bottom end, which can be tightly clamped on the outer ring 4-1 of the incision protection sleeve to close the incision. Preferably, the gap at the opening ≤ 1 / 2 of the maximum length in the short axis direction of the ellipse to ensure that it can be firmly clamped on the outer ring of the disposable incision protection sleeve so that it can withstand a pressure of 2 Kpa for 10 minutes without falling off.

[0031] Furthermore, a lip 6 is provided at the lower part of the inner wall of the connecting part 3 near the outside. The lip 6 is a sheet-like film, which can be one or more sheets and is inclined obliquely upward to increase the friction with the outer ring of the disposable incision protection sleeve to ensure stable sealing.

[0032] The sealing assembly 2 includes an instrument seal 2-1 and a valve seal 2-2. Among them, the instrument seal 2-1 is a sheet-shaped sealing film, whose size is equivalent to that of the operation hole 1-1, and its edge is connected to the inner wall of the operation hole 1-1. A through hole is provided in the center thereof to facilitate the surgical instrument 7 to pass through from this through hole. The diameter of this through hole is 3.8 mm - 7 mm, which is smaller than the outer diameter of general surgical instruments. Thus, when the surgical instrument passes through, the through hole can be appropriately expanded, and the diaphragm around the through hole can tightly wrap the surgical instrument to ensure no air leakage. Preferably, the longitudinal section of the sealing film is trapezoidal, and its side is a wedge shape with a larger outer side and a smaller inner side. At the same time, the top surface of the sealing film does not protrude above the top surface of the body, which can make the support of the instrument seal more powerful, facilitate demolding, and reduce the rejection rate.

[0033] The valve seal 2-2 is a duckbill valve, located below the instrument seal 2-1, and its upper end is connected to the lower side of the edge of the sealing film. The diameter of this duckbill valve is the same as that of the sealing film, which is convenient for installation and use, and can close the through hole on the sealing film, thereby realizing the sealing of the incision. The duckbill valve can be a single-slit duckbill valve, or it can also be a cross-duckbill valve or a V-shaped valve, etc. Reinforcing ribs 2-3 are provided on the inner wall of the duckbill valve, which can enhance its resilience. There are six of these reinforcing ribs 2-3, symmetrically arranged on the two side walls of the duckbill valve, and the reinforcing ribs on each side wall are evenly distributed. After the surgical instrument is withdrawn, the duckbill valve can quickly rebound and close to ensure airtightness.

[0034] Furthermore, there are two or more operation holes 1-1, such as Figure 8 shown, and the distance between each operation hole is greater than the operation radius of the surgical instrument to avoid mutual interference. At the same time, when adopting a multi-hole structure, only a single-slit duckbill valve can be used for the valve seal, and the direction of the single opening is along the radial direction centered on the center of the circle of the body to ensure the use effect.

[0035] When manufacturing the present invention, a silicone hot pressing and forming process can be adopted to form the sealing film, the duckbill valve and the body into an integral body, which is convenient for production and ensures firm connection.

[0036] During use, wind the outer ring of the disposable incision protective sheath multiple times to make it close to the human tissue. Then, snap the connecting part onto the outer ring of the disposable incision protective sheath from its opening, and through its appropriate deformation, ensure its firm snap connection. At this time, the valve-type seal is in a closed state, which can ensure the sealing effect at the incision. When surgery is required, insert the surgical instrument through the through-hole of the sealing film, and then push open the duckbill valve and extend it into the abdominal cavity. At this time, the duckbill valve is in an open state. However, since the sealing film and the surgical instrument are closely fitted, the sealing state at the incision can still be ensured. When the surgical instrument is withdrawn from the abdominal cavity, the duckbill valve quickly closes under the action of the reinforcing rib, and the sealing performance at the incision can still be ensured. Thus, the airtight cover of the present invention can always maintain the sealing performance at the incision before, during, and after the surgery, creating favorable conditions for the smooth progress of the surgery.

[0037] Parts not involved in the present invention are the same as or can be implemented using the prior art.

Claims

1. A disposable airtight cover for an incision protection sheath, comprising a body, characterized in that, The body is disc-shaped and is sized to fit the outer ring of the incision protector sleeve; a through operation hole is provided on the body, and a connecting portion is provided at its edge; a sealing assembly capable of closing the operation hole is provided on the operation hole; the sealing assembly can maintain the closure of the operation hole before and after a surgical instrument passes through the operation hole; the connecting portion is annular, its upper end is connected to the edge of the body, and its lower end is suspended; the longitudinal section of the connecting portion is an ellipse with an open lower end and can be tightly clamped on the outer ring of the disposable protector sleeve to achieve the sealing of the incision. The sealing assembly includes an instrument seal and a valve seal; the instrument seal is a sheet-shaped sealing film, its size is equivalent to that of the operation hole, its edge is connected to the inner wall of the operation hole, and a through hole is provided at its center; the valve seal is a duckbill valve located below the instrument seal, and its upper end is connected to the edge of the sealing film. The longitudinal section of the sealing film is trapezoidal, and its side is a wedge shape with a larger outer side and a smaller inner side; the top surface of the sealing film does not protrude above the top surface of the body. The sealing film, the duckbill valve and the body are integrated.

2. The airtight cover of the disposable incision protection sheath according to claim 1, characterized in that, The bottom of the body around the operation hole bulges downward.

3. The airtight cover of the disposable incision protection sheath according to claim 1, characterized in that The diameter of the duckbill valve is equivalent to the diameter of the sealing film.

4. The airtight cover of the disposable incision protection sheath according to claim 1, characterized in that, Reinforcing ribs are provided on the inner wall of the duckbill valve.

5. The airtight cover of the disposable incision protection sheath according to claim 4, characterized in that, There are six reinforcing ribs, symmetrically arranged on the two side walls of the duckbill valve; the reinforcing ribs on each side wall are evenly distributed.

6. The airtight cover of the disposable incision protection sheath according to claim 1, characterized in that, There are multiple operation holes; the distance between the operation holes is greater than the operation radius of the surgical instrument.

7. The airtight cover of the disposable incision protection sheath according to claim 1, characterized in that, A lip is provided on the inner wall of the connecting portion.

8. The airtight cover of the disposable incision protection sheath according to claim 7, characterized in that, The lip is located at the lower part of the inner wall of the connecting portion near the outside.

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