CN109498391B

CN109498391B - Bidirectional sealing part of negative high pressure diabetic foot wound surface treatment device

Info

Publication number: CN109498391B
Application number: CN201811514244.6A
Authority: CN
Inventors: 郭方; 柳国斌; 陈峻崧; 刘毅
Original assignee: Jiangsu Meideyu Medical Technology Co ltd
Current assignee: Jiangsu Meideyu Medical Technology Co ltd
Priority date: 2018-12-12
Filing date: 2018-12-12
Publication date: 2023-09-08
Anticipated expiration: 2038-12-12
Also published as: CN109498391A

Abstract

The invention belongs to the technical field of medical equipment, and provides a bidirectional sealing part of a negative high-pressure diabetic foot wound surface treatment device, which comprises a central sealing body (1) and a connecting sealing piece fixed on the outer periphery of the central sealing body (1); wherein the central sealing body (1) is formed by buckling two sealing components (2) in opposite directions; the sealing assembly (2) comprises a panel (4), an extending port (6) is formed in the middle of the panel (4), and an elastic membrane sleeve (3) which closes up towards one direction is arranged at the extending port (6); the two sealing assemblies (2) which are buckled oppositely are connected with the outer edge parts of the panels (4) in a sealing way. Compared with the prior art, the invention has the beneficial effects that: the reliable sealing environment can be built very simply and quickly.

Description

Bidirectional sealing part of negative high pressure diabetic foot wound surface treatment device

Technical Field

The invention belongs to the technical field of medical appliances, and relates to a sealing element, in particular to a bidirectional sealing part of a negative high-pressure diabetic foot wound surface treatment device.

Background

The world health organization defines diabetic feet as foot infections, foot ulcers and/or destruction of deep tissues due to neuropathy and vasculopathy of the lower extremities, one of the complications of advanced stages of diabetes. The diabetes patients have poor long-term blood sugar control, cause metabolic disorder in bodies and vascular diseases, are particularly related to foot neuropathy, abnormal sensation and protective function deficiency caused by serious insufficient blood supply of feet, are extremely easy to cause ulcers and infections, and are not even more serious risks of amputation. Medical reports have indicated that amputation due to diabetic feet accounts for more than half of all amputation, a great hazard to the disease. The main reasons for the above situation, in addition to the patient's own consciousness, are: 1. the prior art has insufficient preventive means for postponing serious arterial occlusion; 2. in the prior art, the treatment means for diabetic feet, in particular foot wound surfaces, are very limited, and the effect is not ideal.

For patients with foot infection, ulcer and the like, in addition to effective control of blood sugar, direct and effective treatment of foot wounds is the most urgent and important treatment means.

The negative high pressure diabetic foot wound surface treatment device is novel equipment for treating diabetic foot wound surfaces, and can realize free switching in negative pressure, high pressure and high oxygen treatment means. However, the problem with this is that the sealing at the foot entry is not very secure.

Disclosure of Invention

The invention aims to provide the extending-in port sealing piece with a brand new structure, so that the foot of a patient can be ensured to extend into equipment, and a strong sealing environment can be simply, conveniently and quickly constructed.

In order to achieve the above object, the present invention provides the following various technical solutions:

technical scheme 1: the bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device is characterized by comprising a central sealing body and a connecting sealing piece fixed on the outer periphery of the central sealing body; the central sealing body is formed by buckling two sealing assemblies in opposite directions; the sealing assembly comprises a panel, an extending port is formed in the middle of the panel, and an elastic membrane sleeve which closes up unidirectionally is arranged at the extending port; the two sealing components which are buckled in opposite directions are connected with the outer edge parts of the panels in a sealing way.

The negative high pressure diabetic foot wound surface treatment device is medical equipment which can carry out negative pressure drainage treatment and high pressure treatment, and generally comprises a box body, wherein feet extend into the box body to receive negative high pressure environment treatment. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device, namely the connecting box body and the foot, ensures that the inside of the box body forms a reliable sealing environment.

The bidirectional sealing part is in sealing connection by virtue of a connecting sealing piece fixed on the outer periphery of the central sealing body. The two sealing components of the central sealing body are respectively suitable for positive pressure and negative pressure environments, namely when the inside of the box body is negative pressure, one sealing component is responsible for bearing the atmospheric pressure from outside to inside, and when the inside of the box body is positive pressure, the other sealing component is responsible for bearing the gas pressure from inside to outside.

The foot of the patient passes through the extending port and is covered by the two elastic film sleeves at the same time. The elastic membrane sleeve of the unidirectional cuff is a critical component that provides a seal with the patient's foot and leg position. The design of binding off makes elastic membrane cover and patient's sufficient shank laminating inseparable, and the leakproofness improves greatly.

In addition, if the case is used as a reference, the inside and outside of the case are referred to. If the elastic membrane sleeve is in an outward closing-in state, when the inside of the box body is in a negative pressure state, external atmospheric pressure is applied to the panel and the elastic membrane sleeve from outside to inside, and the pressure applied to the elastic membrane sleeve can enable the elastic membrane sleeve to be tightly attached to the foot and the leg of a patient, the tightness is in direct proportion to the applied pressure, and the applied pressure is in direct proportion to the negative pressure, so that the structure can ensure that one sealing component in the central sealing body can obtain a reliable sealing effect under various negative pressure values. Similarly, if the elastic membrane sleeve is closed inwards, when the inside of the box body is in a positive pressure state, the air pressure in the box body is applied to the panel and the elastic membrane sleeve from inside to outside, and the pressure applied to the elastic membrane sleeve can strengthen the tightness degree of the elastic membrane sleeve and the joint of the foot and the leg of a patient, so that the other sealing component in the central sealing body can obtain reliable sealing effects under various positive pressure values. From this, we can see that the central sealing body is suitable for both positive pressure sealing and negative pressure sealing.

The structure provided by the technical scheme can obtain very reliable sealing effect without binding, bonding and filling the rope belt by a conventional method, and the sealing effect is not influenced by positive and negative pressure types and positive and negative pressure values. Before treatment, the patient directly stretches the feet into the stretching opening, so that the construction of the sealed environment in the box body can be completed, and the method is simple and quick. Unlike common rope belts, the elastic membrane sleeve has certain deformation allowance, and the situation that blood circulation is difficult due to excessive extrusion of the legs of the foot is avoided, so that the elastic membrane sleeve has great significance for treating diabetic feet.

Of course, in order to further enhance the reliability of the seal, the user may apply a sealing oil or a sealing paste, such as vaseline, to the elastic membrane sleeve or a part of the human body in contact with the elastic membrane sleeve in advance. The elastic membrane sleeve with proper shape can be appointed according to the leg type of different patients so as to ensure that the sealing strength is the same all the places when pressure is applied.

An aspect 2 obtained by optimizing an aspect 1 is as follows: the elastic membrane sleeve comprises a membrane peripheral wall, two ends of the membrane peripheral wall are respectively provided with a necking and a flaring, and the flaring is hermetically fixed on the stretching opening; the two sealing assemblies are arranged in opposite directions in space, and the shrinkage openings of the two elastic film sleeves are respectively contacted with each other. The structural design provided by the preferred technical scheme aims at improving wearing comfort of a patient and guaranteeing an optimal sealing effect. The higher the closing height of the elastic membrane sleeve is, the smaller the necking diameter is, and the better the sealing effect is. However, too small a diameter is likely to be uncomfortable for the patient, while too high a cuff height is inconvenient for the patient to wear. The two elastic membrane sleeves are mutually contacted in the closing-in mode, the structure enables no overlapping part to exist between the two elastic membrane sleeves, the feet and the legs of a patient are located in the central sealing body area, no binding fault exists, and therefore tightness and comfortableness can be simultaneously considered.

An aspect 3 obtained by optimizing an aspect 2 is as follows: the necking of the peripheral wall of the membrane is provided with an extension body which is in a reverse expansion shape. In the preferred technical scheme, the membrane peripheral wall is turned outwards after being closed, and when a patient contacts, the patient cannot bring strong discomfort due to the cutting of the outer edge of the closing.

An aspect 4 obtained by optimizing an aspect 2 is as follows: the peripheral wall of the membrane is smoothly conductive everywhere. The preferred technical scheme is to further perfect the technical scheme 2, and the comfort level of the patient is better enhanced.

An aspect 5 obtained by optimizing an aspect 1 is as follows: the panel is concave, and the concave direction is away from the closing direction of the elastic membrane sleeve. As shown in the above preferred technical scheme, the panel is a concave plate, and when the two sealing components are buckled together, a hollow ring-like structure is formed, so that the industrial manufacturing is convenient, the appearance is good, and the structure is more stable when the central sealing body is pressed.

An aspect 6 obtained by optimizing an aspect 1 is as follows: an annular pressing film is fixed on the outer periphery of the panel 4, and the two annular pressing films included in the central sealing body jointly form the connecting sealing piece. According to the structure of the scheme, the outer edge part of the top of the box body can be designed into an annular groove. The annular pressing film is firstly paved on the annular groove, and then the annular pressing film is pressed into the annular groove by utilizing the annular pressing piece, so that a reliable sealing effect is formed between the outer periphery of the central sealing body and the outer edge of the top of the box body.

An aspect 7 obtained by optimizing an aspect 1 is as follows: the panel is provided with a one-way air valve, and the opening direction of the one-way air valve is in the same direction as the closing direction of the elastic membrane sleeve. The above structure can be regarded as that the opening direction of the one-way air valve located at the outside is inward, and the opening direction of the one-way air valve located at the inside is outward. When the inside of the box body is negative pressure, the outside one-way air valve is opened, and at the moment, the atmospheric pressure is only applied to the sealing component close to the inside, and the specific elastic membrane sleeve which closes up upwards receives pressure. And the opposite is true when the interior of the tank is positive pressure. The design can make the seal more reliable, the equipment loss is less, and life is longer.

An aspect 8 obtained by optimizing an aspect 7: and a manual pressure release valve is also arranged on the panel. When positive or negative pressure treatment is completed, the air pressure in the central sealing body is slowly restored or cannot be restored, and at the moment, the patient opens the manual pressure relief valve to enable the inner part and the outer part to be flat pressed mutually.

An aspect 9 obtained by optimizing an aspect 1 is as follows: the extending port formed in the middle of the panel is of a right circular structure. The shape of the extending port is various, and the advantage of the right circular structure design is that the mechanical property is good, and the industrial manufacturing difficulty is low.

An aspect 10 obtained by optimizing an aspect 1 is as follows: the plane of the necking and the plane of the flaring are parallel to each other, and the vertical distance between the two planes is 2-15 cm. The elastic membrane sleeve is most suitable for covering the feet and the legs of a patient by 2-15 cm, which is not only helpful for constructing a sealed environment, but also can miniaturize the whole device.

Compared with the prior art, the invention has the beneficial effects that:

the reliable sealing environment can be built very simply and quickly.

Drawings

Fig. 1 is a schematic perspective view of a bidirectional sealing part of a negative high pressure diabetic foot wound surface treatment device according to the present invention.

Fig. 2 is a schematic perspective exploded view of the bi-directional seal of fig. 1.

Fig. 3 is a sectional view showing an operation state of the bi-directional sealing part of fig. 2 when the bi-directional sealing part is mounted on the case body and is in a negative pressure state.

Fig. 4 is a schematic perspective view of a sealing member with a concave structure in the middle of a panel.

Wherein, the reference numerals are as follows:

1. a center seal;

2. a seal assembly;

3. an elastic membrane sleeve;

4. a panel;

5. an annular pressing film;

6. an extending port;

7. a membrane peripheral wall;

8. necking;

9. flaring;

10. an epitaxial body;

11. a one-way air valve;

12. a manual pressure release valve.

Detailed Description

In order to make the reader better understand the design concept of the present invention, the following specific embodiments are provided so that the reader can visually understand the structure, the structure composition, the action principle and the technical effects related to the present invention. The content includes the structure, the matching relation, the static force direction, the forming mode and the result of the resultant force of each component.

It should be understood by the reader that the following examples are provided for analysis and understanding only, and the technical solution of the present invention is not limited thereto. After the reader has read the examples and understood the spirit of the invention, a series of modifications, equivalent substitutions, a mix of characteristic elements, etc. made according to the provided embodiments should be construed as being included in the spirit of the invention.

The reader should particularly note that the drawings corresponding to the specific embodiments exist in a form for assisting understanding, so that the reader can conveniently and fully understand the abstract upper concept of the technical idea related to the invention by understanding the specifically visualized lower concept. In the overall understanding of the present invention and in comparison with other technical solutions than those provided by the present invention, the representation of the drawings should not be taken as a sole reference basis, and after understanding the concept of the present invention, a series of modifications, equivalent substitutions, a mixture of characteristic elements, deletion and rearrangement of unnecessary technical characteristic elements, reasonable addition and rearrangement of unnecessary technical characteristic elements common in the prior art, and the like, which are made according to the drawings or not according to the drawings, should be understood to be included in the spirit of the present invention.

Since the technical solution of the present invention is not exhaustive, the following cases should also be understood as being included in the spirit of the present invention:

1. in the case where its structure utilizes substantially the same principle as the present technology, or achieves substantially the same function as the present technology, or obtains substantially the same advantageous effect as the present technology, its structure is deformed or its manner is a common means in the art or in a very similar technical field, and its structure is included in the spirit of the present invention.

2. The beneficial effects related to this embodiment are directed to the specific structural features in the illustrated embodiment, and the beneficial effects may be: lower position encompassed by the present teachings; it may also be new, i.e. necessarily obtained from a specific lower structure extended by an upper concept. The advantages of the present invention may be realized by the structure thereof, which is not or not fully corresponding to the above-described advantages of the embodiments or the advantages which are specifically pointed out in the spirit of the invention, but which may be reasonably derived from the design concept and spirit of the invention.

The following are specific examples.

Referring to fig. 1, 2 and 3, this embodiment describes a bidirectional sealing part of a negative high pressure diabetic foot wound surface treatment device with a structure, which comprises a central sealing body 1, wherein the central sealing body 1 is formed by buckling two sealing components 2 with identical structures and mirror surfaces. The sealing assembly 2 comprises an elastic film sleeve 3, a panel 4 and an annular pressing film 5 from inside to outside. The middle part of the panel 4 is provided with an extending port 6, and the elastic membrane sleeve 3 is arranged at the extending port 6. The extending port 6 is circular and concentric with the annular panel 4. The elastic membrane sleeve 3 has a main body of a membrane peripheral wall 7, the upper edge of the membrane peripheral wall 7 is provided with a shrinkage opening 8, the lower edge is provided with a flaring 9, and the flaring 9 is fixedly connected with the stretching opening 6 in a sealing way. The annular pressing film 5 is sealed and fixed at the outer periphery of the panel 4, and the material of the annular pressing film can be air-impermeable soft materials such as aluminum foil, air-impermeable resin film and the like. The height of the elastic membrane sleeve 3 is 7 cm, and a user can select between 2 cm and 15 cm.

This embodiment may be further derived:

1. example 2 referring to figures 1, 2 and 3, when two seal assemblies 2 are engaged, the elastic membrane sleeves 3 touch each other at the location of the constriction 8.

2. In example 3, referring to fig. 4, an extension body 10 is provided at the position of the neck opening 8 of the elastic film cover 3, and the extension body 10 is in a reverse expansion shape with respect to the neck opening 8.

3. In example 4, the elastic membrane sleeve 3 has a specific shape of a right circular closing column, and is smooth and conductive everywhere and even in thickness.

4. In embodiment 5, referring to fig. 1, a unidirectional air valve 11 is disposed on the panel 4, the opening direction of the unidirectional air valve 11 is the same as the closing direction of the elastic membrane sleeve 3, and a manual pressure release valve 12 is also disposed on the panel 4.

5. In example 6, referring to fig. 4, the middle part of the annular panel 4 is concave in an annular shape, the closing direction of the elastic membrane sleeve 3 is upward, and the extending opening 6 is in a natural tangential shape with the elastic membrane sleeve 3.

When the device is used, the device is assembled with the box body into a whole, then the patient stretches the feet into the box body, and the ankle or the lower leg is wrapped by the elastic membrane sleeve 3, so that the whole sealing construction is completed.

Claims

1. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device is characterized by comprising a central sealing body (1) and a connecting sealing piece fixed on the outer periphery of the central sealing body (1); wherein the central sealing body (1) is formed by buckling two sealing components (2) in opposite directions; the sealing assembly (2) comprises a panel (4), an extending port (6) is formed in the middle of the panel (4), and an elastic membrane sleeve (3) which closes up towards one direction is arranged at the extending port (6); the two sealing assemblies (2) buckled oppositely are connected with the outer edge parts of the panels (4) in a sealing way;

if the box body is taken as a reference object, the inside and the outside of the box body are taken as reference directions; if the elastic membrane sleeve (3) is closed outwards, when the inside of the box body is in a negative pressure state, external atmospheric pressure is exerted on the panel (4) and the elastic membrane sleeve (3) from outside to inside, the pressure exerted on the elastic membrane sleeve (3) can enable the elastic membrane sleeve (3) to be tightly attached to the feet and the legs of a patient, the tightness is in direct proportion to the exerted pressure, and the exerted pressure is in direct proportion to the magnitude of the negative pressure, so that the structure can ensure that one sealing component (2) in the central sealing body (1) can obtain reliable sealing effects under various negative pressure values; similarly, if the elastic membrane sleeve (3) is closed inwards, when the inside of the box body is in a positive pressure state, the air pressure in the box body is applied to the panel (4) and the elastic membrane sleeve (3) from inside to outside, and the pressure applied to the elastic membrane sleeve (3) can strengthen the tightness degree of the fit between the elastic membrane sleeve (3) and the feet and the legs of a patient, so that the other sealing component (2) in the central sealing body (1) can obtain reliable sealing effects under various positive pressure values.

2. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device according to claim 1, wherein the elastic membrane sleeve (3) comprises a membrane peripheral wall (7), two ends of the membrane peripheral wall (7) are respectively provided with a necking (8) and a flaring (9), and the flaring (9) is fixed on the stretching-in port (6) in a sealing way; the two sealing assemblies (2) are arranged in opposite directions in space, and the necking (8) of the two elastic film sleeves (3) respectively are contacted with each other.

3. The bidirectional sealing portion of the negative high pressure diabetic foot wound treatment device according to claim 2, wherein the constriction (8) of the membrane peripheral wall (7) is provided with an extension body (10) in a reverse expansion shape.

4. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment apparatus according to claim 2, wherein the membrane peripheral wall (7) is smoothly conductive everywhere.

5. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device according to claim 1, wherein the panel (4) is concave, and the concave direction is away from the closing direction of the elastic membrane sleeve (3).

6. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device according to claim 1, wherein an annular pressing film (5) is fixed on the outer periphery of the panel (4), and the two annular pressing films (5) included in the central sealing body (1) together form the connecting sealing member.

7. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device according to claim 1, wherein a unidirectional air valve (11) is arranged on the panel (4), and the opening direction of the unidirectional air valve (11) is the same as the closing direction of the elastic membrane sleeve (3).

8. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device according to claim 7, wherein a manual pressure release valve (12) is further provided on the panel (4).

9. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device according to claim 1, wherein the extending port (6) arranged at the middle part of the panel (4) is in a right circular structure.

10. The bidirectional sealing part of the negative high pressure diabetic foot wound surface treatment device according to claim 1, wherein the plane of the necking (8) and the plane of the flaring (9) are parallel to each other, and the vertical distance between the two planes is 2-15 cm.