Medical incision expansion protective sleeve

Abstract

A medical incision expansion protective sleeve belongs to the field of medical devices. Existing incision protective sleeves cannot well expand and protect surgical incisions due to structural and material limitations. A medical incision expansion protective sleeve comprises an expansion support (1), an upper cover (2) and a one-way valve device (3). The upper cover (2) covers the top of the expansion support (1) to prevent foreign matter from falling during surgery or other operations and protect the tissue in the incision. The one-way valve device (3) is installed at the air inlet position of the expansion support (1); the expansion support (1) is hollow inside, with a sandwich structure with expanded ends and gradually narrowed toward the middle. The expansion support (1) is a flexible body, and the side wall sandwich of the expansion support (1) can be inflated. The side wall sandwich of the expansion support (1) is connected to the one-way valve device (3) through the air inlet position. The design of the present invention is easy to be placed in a surgical incision, easy to take out, and convenient to operate.

Description

Technical Field

[0001] The invention relates to a medical incision expansion protective sleeve. Background Art

[0002] During surgery, in order to ensure good incision support, the incision protection cover needs to be made of a harder material, but this will result in less elasticity and a reduced effective expansion area after being inserted into the incision, affecting the doctor's field of vision and operating space; if the incision protection cover is made of a softer material, although it can be easily inserted into the incision, it does not have sufficient rigidity to support the incision.

[0003] Therefore, the invention provides a flexible inflatable incision protective cover, which can be inserted into the incision after being folded and squeezed, and then inflated to expand it, so that it has sufficient rigidity to meet the use requirements. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the existing incision protection sleeve cannot well expand and protect the surgical incision due to the limitation of structure and material, and to provide a medical incision expansion protection sleeve.

[0005] A medical incision expansion protective sleeve, the medical incision expansion protective sleeve comprises an expansion support, an upper cover and a one-way valve device, the upper cover is covered on the top of the expansion support, can prevent foreign matter from falling during surgery or other operations, and protect the tissue in the incision, and the one-way valve device is installed at the air inlet position of the expansion support;

[0006] The expandable support device is hollow inside, with expanded openings at both ends and a sandwich structure that gradually narrows toward the middle. The expandable support device is a flexible body, and the side wall sandwich of the expandable support device can be inflated. The side wall sandwich of the expandable support device is connected to the one-way valve device through the air inlet position.

[0007] The beneficial effects of the present invention are:

[0008] The design of the invention is easy to be placed in a surgical incision, easy to be taken out, and convenient to operate.

[0009] The medical incision expansion protective sleeve created by the present invention is made of soft material and can be inserted into the incision produced during the operation after being folded and squeezed, and then inflated to make it expand. As gas is filled into the medical incision expansion protective sleeve, the gas pressure in the medical incision expansion protective sleeve continues to increase, so that the rigidity of the medical incision expansion protective sleeve also continues to increase, thereby continuously expanding the epidermal tissue on both sides of the patient's incision, making it have sufficient rigidity, thereby meeting the use requirements of supporting the incision.

[0010] The medical incision expansion protective sleeve designed by the present invention has sufficient rigidity after being inflated, and can freely control the expansion range of the epidermal tissue to meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the external structure of the medical incision expansion protective sleeve involved in the present invention;

[0012] Figure 2 A longitudinal cross-sectional view of the medical incision expansion protective sleeve according to the present invention;

[0013] Figure 3 It is a partial cross-sectional view of the medical incision expansion protective sleeve involved in the present invention;

[0014] Figure 4 It is a schematic diagram of a partial cross-sectional structure of an expansion support device according to the present invention;

[0015] Figure 5 It is a schematic diagram of a partial cross-sectional structure of a one-way valve device according to the present invention;

[0016] Figure 6 It is a structural schematic diagram of the upper cover involved in the present invention;

[0017] Figure 7 It is a structural schematic diagram of the device involved in Example 1 of the present invention;

[0018] Figure 8 It is a schematic diagram of the simulation analysis force and dimensions involved in the simulation operation analysis part of the present invention;

[0019] Fig. 9 The simulation analysis of the present invention involves using ANSYS Workbench to perform simulation analysis, and obtains a graphical representation of the overall deformation results after being subjected to force;

[0020] Fig.10 The simulation analysis of the present invention involves using ANSYS Workbench to perform simulation analysis, and a graphical representation of the overall deformation results after being subjected to force is obtained. DETAILED DESCRIPTION Specific implementation method one:

[0022] The medical incision expansion protection sleeve of this embodiment comprises an expansion support 1, an upper cover 2 and a one-way valve device 3. The upper cover 2 is covered on the top of the expansion support 1 to prevent foreign matter from falling during surgery or other operations and protect the tissue in the incision. The one-way valve device 3 is installed at the air inlet position of the expansion support 1.

[0023] The expandable support device 1 is hollow inside, with expanded ends and a sandwich structure that gradually narrows toward the middle. The expandable support device 1 is a flexible body. The side wall sandwich of the expandable support device 1 can be inflated, and the side wall sandwich of the expandable support device 1 is connected to the one-way valve device 3 through the air inlet position. Specific implementation method 2:

[0025] Different from the first embodiment, the medical incision expansion protective sleeve of this embodiment is

[0026] The side wall interlayer of the expansion support device 1 is also provided with an inflation system, which includes a flexible support body 1a, an inflation joint 1b, a top support ring 1c, and a bottom support ring 1d. A circle of the upper end port of the flexible support body 1a is provided with a top support ring 1c, and a circle of the lower end port is provided with a bottom support ring 1d.

[0027] An air charging connector 1b is provided at the air inlet position, and a one-way valve device 3 is installed on the air charging connector 1b;

[0028] A bottom annular air channel 1e1 is arranged in the bottom support ring 1d, a middle annular air channel 1e2 is arranged at the middle cross-sectional position of the flexible support body 1a, a top annular air channel 1e3 is arranged in the top support ring 1c, and a group of longitudinal air channels 1e4 are arranged in the interlayer of the flexible support body 1a, each longitudinal air channel 1e4 is staggered with the bottom annular air channel 1e1, the middle annular air channel 1e2, and the top annular air channel 1e3, and the longitudinal air channel 1e4 is connected with the bottom annular air channel 1e1, the middle annular air channel 1e2, and the top annular air channel 1e3, so that the inflated air channels are interconnected;

[0029] in,

[0030] The inside of the inflation joint 1b has a hollow air inlet 1e5 running through both ends;

[0031] The bottom annular airway 1e1, the middle annular airway 1e2, and the top annular airway 1e3 are arranged in parallel. Specific implementation method three:

[0033] Different from the first embodiment, the medical incision expansion protective sleeve of this embodiment is

[0034] The upper cover 2 includes a handle 2a, a cover body 2b, and a flexible rubber ring 2c. The handle 2a is fixedly installed on the top of the cover body 2b, one end of the flexible rubber ring 2c is fixed to the four sides of the bottom of the cover body 2b, and the outer wall of the flexible rubber ring 2c is attached to the inner wall of the upper end of the flexible support body 1a, so as to achieve sealing between the upper cover 2 and the support ring 1c at the top of the flexible support body 1a, and enable the upper cover 2 to be fixed on the expansion support device 1. Specific implementation method four:

[0036] Different from the third embodiment, the medical incision expansion protective sleeve of this embodiment is

[0037] The one-way valve device 3 comprises an outer one-way valve tube 3a, a one-way valve spring 3b and a one-way valve sealing ball 3c. The diameter of the inner tube diameter in the middle section of the outer one-way valve tube 3a is larger than the diameter of the ports at both ends. The one-way valve spring 3b and the one-way valve sealing ball 3c are installed inside the outer one-way valve tube 3a. The one-way valve spring 3b is located at the air outlet end of the outer one-way valve tube 3a. The one-way valve sealing ball 3c is located at the air inlet end of the outer one-way valve tube 3a. The diameter of the one-way valve sealing ball 3c is larger than the diameter of the ports at both ends and smaller than the diameter of the inner tube diameter in the middle section of the outer one-way valve tube 3a.

[0038] The one-way valve spring 3b has a certain pre-tightening degree. One end of the one-way valve spring 3b presses against the air outlet end of the one-way valve outer tube 3a, and the other end of the one-way valve spring 3b presses against the one-way valve sealing ball 3c, so that the one-way valve sealing ball 3c is pressed against the air inlet end of the one-way valve outer tube 3a, thereby realizing the sealing function.

[0039] Embodiment 1:

[0040] The medical incision expansion protective sleeve is squeezed and folded and then placed into the incision on the patient, and connected to the airway at the inflation joint 1b, and the other end of the airway is connected to the air pump A1, the throttle valve A2, and the air pressure gauge A3. The medical incision expansion protective sleeve is deformed under the squeezing of the epidermal tissue B1 on both sides of the patient's incision, and the middle part is squeezed flat.

[0041] Start the air pump A1 to inflate the medical incision expansion protective sleeve. The gas passes through the one-way valve device 3, flows into the top annular airway 1e3 through the air inlet 1e5, and then flows into the bottom annular airway 1e1 and the middle annular airway 1e2 through the longitudinal airway 1e4. At the same time, the throttle valve A2 is used to control the air flow, and the pressure of the inflation is detected by the barometer A3.

[0042] As the gas is filled, the gas pressure in the medical incision expansion protective sleeve continues to increase, so that the stiffness of the medical incision expansion protective sleeve also continues to increase, thereby continuously expanding the epidermal tissue B1 on both sides of the patient's incision. When the stiffness of the medical incision expansion protective sleeve and the expansion range of the epidermal tissue B1 meet the use requirements, the air pump A1 stops inflating, and unplugs the air guide tube at the inflation connector 1b, and uses the one-way valve device 3 in the inflation connector 1b to achieve gas sealing in the medical incision expansion protective sleeve.

[0043] , use a screwdriver or other tool to push the one-way valve sealing ball 3c inward, so that the gas in the medical incision expansion protection sleeve is released and discharged from the inflation connector 1b, and then the medical incision expansion protection sleeve is squeezed and folded and taken out from the patient's incision.

[0044] Simulation analysis:

[0045] The inflated medical incision expansion protective sleeve will still undergo a certain deformation when squeezed by the epidermal tissue B1 on both sides of the patient's incision, so a simulation analysis of the deformation value is performed.

[0046] The overall height of the medical incision expansion protective sleeve is 60mm, the side wall thickness is 6mm, the top support ring 1c and the bottom support ring 1d have a diameter of 60mm, and the outer diameter of the narrowest position in the middle, that is, the position where the middle annular airway 1e2 is located, is 35mm; the airway diameters of the bottom annular airway 1e1, the middle annular airway 1e2, and the top annular airway 1e3 are all 4mm; the longitudinal airway 1e4 is evenly distributed in the vertical direction of the flexible support body 1a in 8 lines, and the diameter of the longitudinal airway 1e4 is 3mm. Figure 8 shown.

[0047] The medical incision expansion protective sleeve is made of medical rubber material with an elastic modulus of 7.8 MPa and a Poisson's ratio of 0.46; the inflation pressure is 0.05 MPa; the thickness of the epidermal tissue B1 on both sides of the patient's incision is 15 mm, and the squeezing pressure of the epidermal tissue B1 on both sides on the medical incision expansion protective sleeve is 10N.

[0048] Using ANSYS Workbench to perform simulation analysis, the overall deformation results after force are obtained as follows: Fig. 9 and Fig.10 As shown, the middle part of the medical incision expansion protective sleeve is most obviously squeezed and deformed, and the maximum deformation is located in the central area of ​​the contact part between the medical incision expansion protective sleeve and the epidermal tissue B1 on both sides. The medical incision expansion protective sleeve is squeezed inward at this point, and the maximum deformation is 0.0012593m. This deformation can meet the use requirements.

[0049] The present invention may also have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A medical incision expansion protective sleeve, characterized in that: The medical incision expansion protective sleeve comprises an expansion support (1), an upper cover (2) and a one-way valve device (3), wherein the upper cover (2) covers the top of the expansion support (1), and the one-way valve device (3) is installed at the air inlet position of the expansion support (1); The expandable support device (1) is hollow inside, has a sandwich structure with expanded openings at both ends and gradually narrowed toward the middle, is a flexible body, and the side wall sandwich of the expandable support device (1) can be inflated. The side wall sandwich of the expandable support device (1) is connected to the one-way valve device (3) through the air inlet position; An inflation system is also arranged in the side wall interlayer of the expansion support device (1), the inflation system comprising a flexible support body (1a), an inflation joint (1b), a top support ring (1c), and a bottom support ring (1d); a circle of the upper end port of the flexible support body (1a) is provided with a top support ring (1c), and a circle of the lower end port is provided with a bottom support ring (1d); An air charging joint (1b) is provided at the air inlet position, and a one-way valve device (3) is installed on the air charging joint (1b); A bottom annular air channel (1e1) is arranged in the bottom support ring (1d), a middle annular air channel (1e2) is arranged at the middle cross-sectional position of the flexible support body (1a), a top annular air channel (1e3) is arranged in the top support ring (1c), and a group of longitudinal air channels (1e4) are arranged in the interlayer of the flexible support body (1a), each longitudinal air channel (1e4) is arranged alternately with the bottom annular air channel (1e1), the middle annular air channel (1e2), and the top annular air channel (1e3), and the longitudinal air channel (1e4) is connected with the bottom annular air channel (1e1), the middle annular air channel (1e2), and the top annular air channel (1e3), so that the inflated air channels are interconnected; in, The inflation joint (1b) has a hollow air inlet passage (1e5) running through both ends. The bottom annular airway (1e1), the middle annular airway (1e2), and the top annular airway (1e3) are arranged in parallel.

2. The medical incision expansion protective sleeve according to claim 1, characterized in that: The upper cover (2) comprises a handle (2a), a cover body (2b), and a flexible rubber ring (2c); the handle (2a) is fixedly mounted on the top of the cover body (2b); one end of the flexible rubber ring (2c) is fixed to the four sides of the bottom of the cover body (2b); and the outer wall of the flexible rubber ring (2c) is attached to the inner wall of the upper end of the flexible support body (1a).

3. The medical incision expansion protective sleeve according to claim 2, characterized in that: The one-way valve device (3) comprises a one-way valve outer tube (3a), a one-way valve spring (3b) and a one-way valve sealing ball (3c); the diameter of the inner tube diameter of the middle section of the one-way valve outer tube (3a) is larger than the diameter of the ports at both ends; the one-way valve spring (3b) and the one-way valve sealing ball (3c) are installed inside the one-way valve outer tube (3a); the one-way valve spring (3b) is located at the air outlet end of the one-way valve outer tube (3a); the one-way valve sealing ball (3c) is located at the air inlet end of the one-way valve outer tube (3a); the diameter of the one-way valve sealing ball (3c) is larger than the diameter of the ports at both ends and smaller than the diameter of the inner tube diameter of the middle section of the one-way valve outer tube (3a).

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