CN112870527A

CN112870527A - Air suction type air pressure driven fixed drainage tube

Info

Publication number: CN112870527A
Application number: CN202110069852.6A
Authority: CN
Inventors: 欧阳电
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-06-01

Abstract

The invention discloses an air suction type air pressure driven fixed drainage tube, which comprises a drainage cavity, a negative pressure fixed cavity, an air inlet cavity and a liquid inlet cavity, wherein the drainage cavity is provided with a drainage hole; the cross sections of the air inlet cavity and the liquid inlet cavity are circular, the air inlet cavity and the liquid inlet cavity are symmetrically arranged above the drainage cavity, and the drainage cavity avoids the negative pressure fixing cavity, the air inlet cavity and the liquid inlet cavity and is arranged in the middle; the negative pressure fixing cavity is arranged below the drainage cavity, a vacuum pipeline and a plurality of adsorption ports which are arranged at intervals are arranged in the negative pressure fixing cavity, and the size of the opening of each adsorption port is gradually reduced from two ends of the negative pressure fixing cavity to the middle; the adsorption port is arranged towards the opening of the lower surface of the negative pressure fixing cavity, inward parallel extending adsorption bud parts with triangular cross sections are arranged on two side edges of the opening respectively, and the adsorption bud parts are used for improving adsorption capacity of the adsorption port.

Description

Air suction type air pressure driven fixed drainage tube

Technical Field

The invention relates to the technical field of drainage tubes, in particular to a suction type air pressure driven fixed drainage tube.

Background

The medical drainage tube is generally used for surgical operations, and is used for guiding pus, blood, liquid and the like accumulated in human tissues or body cavities to the outside of a body through the drainage tube, thereby having the functions of preventing infection after the operations, promoting wound healing and the like.

At present, drainage tubes used in hospitals are flexible tube bodies with single-layer structures, a plurality of through holes are arranged in the tube bodies, and the drainage tubes are inserted into human bodies for drainage in the operation process. Irrigation not only prevents infection but also dilutes inflammatory mediators to promote wound healing, since wound healing is not favored if excess inflammatory mediators accumulate around the wound.

The Chinese utility model patent with publication number CN207342014U discloses a continuous accurate flushing type anti-clogging drainage tube, which comprises a main tube, a first conduit and a second conduit, wherein the first conduit and the second conduit are arranged close to the main tube; the drainage tube is characterized by also comprising a vacuum adsorption tube which is arranged close to the side of the main tube and used for fixing the drainage tube on tissues, wherein the tube opening of the vacuum adsorption tube inserted into the human body is a closed tube opening; the side wall of the vacuum adsorption tube contacting with the tissue is provided with a plurality of adsorption holes which are communicated with the outside and the tube cavity of the vacuum adsorption tube.

After the research of the applicant, the applicant finds that the continuous accurate flushing type anti-clogging drainage tube has the following defects:

1. the absorption hole of current product needs the negative pressure that lasts to realize adsorbing, and when absorbent in-process suction appears undulantly, the absorption between absorption hole and the human body is connected and is pine take off easily, and then influences the normal drainage of drainage tube, seriously influences the stability in use of drainage tube.

2. The existing product is not uniformly stressed after being adsorbed, and when the drainage tube is used at a position with larger curvature, the drainage tube is easy to break when the whole body is bent seriously.

Disclosure of Invention

In order to overcome the technical defect that the existing product is easy to loosen and break, the invention provides the air suction type air pressure driven fixed drainage tube which is not easy to loosen and break.

In order to solve the problems, the invention is realized according to the following technical scheme:

the invention discloses an air suction type air pressure driven fixed drainage tube, which comprises a drainage cavity, a negative pressure fixed cavity, an air inlet cavity and a liquid inlet cavity;

the cross sections of the air inlet cavity and the liquid inlet cavity are circular, the air inlet cavity and the liquid inlet cavity are symmetrically arranged above the drainage cavity, and the drainage cavity avoids the negative pressure fixing cavity, the air inlet cavity and the liquid inlet cavity and is arranged in the middle;

the negative pressure fixing cavity is arranged below the drainage cavity, a vacuum pipeline and a plurality of adsorption ports which are arranged at intervals are arranged in the negative pressure fixing cavity, and the size of the opening of each adsorption port is gradually reduced from two ends of the negative pressure fixing cavity to the middle;

the adsorption port is arranged towards the opening of the lower surface of the negative pressure fixing cavity, inward parallel extending adsorption bud parts with triangular cross sections are arranged on two side edges of the opening respectively, and the adsorption bud parts are used for improving adsorption capacity of the adsorption port.

Preferably, the cross section of the adsorption port is in a semicircular structure.

Preferably, a plurality of the adsorption ports are equidistantly distributed in the negative pressure fixing cavity.

Preferably, the cross-sectional areas of the plurality of adsorption ports are the same, and the widths of the adsorption ports gradually decrease from two ends to the middle of the negative pressure fixing cavity.

Preferably, the width range of the adsorption port is 0.3-3 mm.

Preferably, the inward tip part of the adsorption bud part is provided with a round angle.

Preferably, the radius of the rounded corner is 0.04 mm.

Preferably, the drainage cavity, the negative pressure fixing cavity, the air inlet cavity and the liquid inlet cavity are formed in a pipe body together.

Preferably, the tube body is made of one of rubber, silicone rubber, and polyurethane.

Preferably, the tube body is made of one of polylactic acid, polyglycolic acid, and polylactic acid-glycolic acid copolymer.

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

1. according to the drainage tube, the two side edges of the opening of the adsorption port are respectively provided with the adsorption bud part, so that after the adsorption port adsorbs the surface of a human body, the adsorption bud part can further adsorb, and therefore the phenomenon that the adsorption port and the surface of the human body are loosened under the condition that negative pressure fluctuates is avoided, the working stability of the drainage tube can be obviously improved, and the overall reliability and safety are improved.

2. The drainage tube is provided with a plurality of adsorption ports which are arranged at intervals, and the opening size of the adsorption ports is gradually reduced from two ends of the negative pressure fixing cavity to the middle, so that the stress distribution between the adsorption ports is more reasonable, the integral stress of the drainage tube is more uniform, and the risk of fracture of the middle part of the drainage tube due to stress concentration is greatly reduced.

3. The invention carries out adsorption through pulse negative pressure, and the pulse negative pressure is matched with the adsorption bud part, so that the blood running in the human body can be actively promoted, thereby effectively increasing the blood supply of the human body and improving the treatment effect.

Drawings

Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic view of the structure of the air-breathing pneumatic-driven fixed drainage tube of the present invention;

FIG. 2 is a schematic cross-sectional view of the aspirating, pneumatically driven stationary drain of the present invention;

FIG. 3 is a schematic view of the bottom structure of the air suction type pneumatic driving fixed drainage tube of the present invention;

FIG. 4 is a schematic cross-sectional view of the air-breathing fixed draft tube of the present invention;

FIG. 5 is a schematic cross-sectional view showing the structure of example 2 of the present invention;

FIG. 6 is a schematic cross-sectional view showing the structure of example 4 of the present invention;

in the figure:

1-a drainage cavity;

2-negative pressure fixing cavity, 21-vacuum pipeline, 22-adsorption port and 221-adsorption bud part;

3-an air inlet cavity;

4-liquid inlet cavity.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

It should be noted that, unless otherwise specified and limited, the term "connected" in the description of the embodiments of the present invention is to be understood broadly, and for example, the term may be an electrical connection, a communication between two elements, a direct connection, or an indirect connection through an intermediate medium, and a specific meaning of the term may be understood by those skilled in the art according to specific situations. In the embodiments of the present invention, terms such as "upper", "lower", "left", "right", and "middle" are used for clarity of description only, and are not used to limit the scope of the invention, and changes or modifications of the relative relationship thereof may be considered as the scope of the invention without substantial changes in the technical content. In the embodiments of the present invention, if the terms "first, second, and third" are used, they only distinguish similar objects and do not represent a specific ordering for the objects, and it should be understood that "first, second, and third" may be interchanged with a specific order or sequence, where permitted.

As shown in figures 1-6, the preferred structure of the air suction type pneumatic driving fixed drainage tube is disclosed in the invention.

Example 1

As shown in figures 1 and 2, the invention discloses a suction type air pressure driven fixed drainage tube, in particular to a treatment section part which enters a human body and is attached to human tissue in the drainage tube and is used for realizing the absorption of negative pressure in the human body and carrying out corresponding drainage work, and the end part of the invention is sequentially connected with a connecting section and an external section of the drainage tube. The invention carries out adsorption through the pulse negative pressure, abandons the fixing mode that the prior drainage tube passes through a suture and clamping, leads the connection and the disassembly of the drainage tube to be easier, and in addition, the pulse period of the pulse negative pressure can promote the blood flow of the adsorbed part to increase the blood supply effect of the drainage part, thereby improving the treatment effect in a targeted way.

The air suction type air pressure driven fixed drainage tube comprises a drainage cavity 1, a negative pressure fixed cavity 2, an air inlet cavity 3 and a liquid inlet cavity 4. The cross sections of the air inlet cavity 3 and the liquid inlet cavity 4 are circular, the air inlet cavity 3 and the liquid inlet cavity 4 are symmetrically arranged above the drainage cavity 1, the drainage cavity 1 avoids the negative pressure fixing cavity 2, the air inlet cavity 3 and the liquid inlet cavity 4, and the negative pressure fixing cavity 2 is arranged below the drainage cavity 1.

Preferably, the size of the gas inlet cavity 3 is the same as that of the liquid inlet cavity 4, and the diameter range is 0.5 mm-1 mm. As a particularly preferred embodiment, the inlet chamber 3 and the inlet chamber 4 have a diameter of 0.8 mm.

The vacuum fixing cavity 2 is internally provided with a vacuum pipeline 21 and a plurality of adsorption ports 22 arranged at intervals, and the size of the opening of each adsorption port 22 is gradually reduced from the two ends of the vacuum fixing cavity 2 to the middle. The adsorption port 22 is arranged towards the opening on the lower surface of the negative pressure fixing cavity 2, two side edges of the opening are respectively provided with an adsorption bud part 221 which extends inwards in parallel and has a triangular cross section, and the adsorption bud part 221 is used for further adsorbing human tissues so that the adsorption connection of the adsorption port 22 is more stable.

Specifically, the diameter of the vacuum pipe 21 is 0.6mm in size.

The invention creatively arranges the adsorption bud parts 221 on two sides of the opening of the adsorption port 22 respectively, so that the adsorption port 22 can further adsorb after adsorbing human tissues, and further the connection between the adsorption port 22 and the human tissues is more stable and is not easy to loosen. On the other hand, the opening size of the adsorption port 22 is gradually reduced from the two ends of the negative pressure fixing cavity 2 to the middle, so that the stress at the middle part of the drainage tube is smaller, the middle part of the drainage tube is prevented from being damaged and broken due to stress concentration, and the stability and the safety of the drainage tube are ensured.

In the invention, after the vacuum pipeline 21 of the negative pressure fixing cavity 2 is vacuumized, the end surface of the drainage tube is correspondingly adsorbed and stably connected to the human tissue through the adsorption port 22 of the negative pressure fixing cavity 2 on the end surface, meanwhile, the lower surface is sequentially adsorbed to the human tissue through the adsorption port 22, the human tissue is adsorbed by the adsorption port 22, and the adsorbed bud parts 221 on the two side edges of the adsorption port 22 adsorb the adsorbed part of the human tissue. The drainage tube sucks human tissue secretion, accumulated pus, blood, liquid and the like which need to be discharged out through the drainage cavity 1 under the pumping action of the air pump, and simultaneously leads in liquid medicine to the human body through the liquid inlet cavity 4 and leads in air to the human body through the air inlet cavity 3, so that the body cavity of the human body forms a contraction and expansion circulation state, a continuous vacuum state can not be generated in the human body, and the secretion which needs to be discharged can be smoothly sucked out.

As shown in fig. 3 and 4, the negative pressure fixing chamber 2 of the present invention includes a vacuum pipe 21 and a plurality of adsorption ports 22 arranged at intervals, and the adsorption ports 22 are communicated with each other through the vacuum pipe 21. Preferably, the cross section of the adsorption port 22 is a semicircular structure, and a plurality of the adsorption ports 22 are equidistantly distributed in the negative pressure fixing cavity 2. And the cross sectional areas between different adsorption ports 22 are the same in size and only different in width, and the width is gradually reduced from the two ends of the negative pressure fixing cavity 2 to the middle, so that the size of the adsorption port 22 is gradually reduced from the two ends of the drainage tube to the middle. The adsorption ports 22 arranged at equal intervals enable the sizes of the adsorption ports 22 to be symmetrically arranged, so that the uniform stress distribution of the whole drainage tube is ensured.

Preferably, the width of the adsorption port 22 ranges from 0.3 mm to 3 mm. Specifically, in the embodiment of the present invention, there are 5 adsorption ports 22, including a first adsorption port 22 on the end surface, and a second adsorption port 22, a third adsorption port 22, a fourth adsorption port 22, and a fifth adsorption port 22, which are sequentially arranged. The width of the first adsorption port 22 is 2.05mm, the width of the second adsorption port 22 is 1.05mm, the width of the third adsorption port 22 is 0.5mm, the width of the fourth adsorption port 22 is 1.05mm, the width of the fifth adsorption port 22 is 2.05mm, the width of the adsorption ports 22 is gradually reduced from two ends to the middle part, and the stress between the adsorption ports 22 is gradually weakened from two ends to the middle part, so that the fracture of the drainage tube due to bending can be reasonably avoided, and the working stability of the drainage tube is remarkably improved.

Preferably, drainage chamber 1, the fixed chamber of negative pressure 2, the chamber of admitting air 3 and feed liquor chamber 4 are formed jointly in a body, and the body of integrated into one piece structure enables the position relatively fixed between drainage chamber 1, the fixed chamber of negative pressure 2, the chamber of admitting air 3 and the feed liquor chamber 4, and the wall thickness scope between drainage chamber 1, the fixed chamber of negative pressure 2, the chamber of admitting air 3 and the feed liquor chamber 4 is 0.2 ~ 0.4 mm. The wall thickness of 0.2-0.4 mm can ensure that the whole diameter of the drainage tube is within 4mm after the drainage tube forms the structure of the invention, so that the drainage tube can be embedded into a human body for adsorption.

In one preferred embodiment, the tube is made of a rubber material.

As another embodiment, the tube body is made of a silicone material.

As another embodiment, the tubular body is made of a silicone rubber material.

As another embodiment, the tube body is made of a polyurethane material.

The rubber, the silica gel, the silicon rubber and the polyurethane material are all materials with elasticity and stable properties, and are suitable for being used as materials for manufacturing a tube body so as to safely enter and exit a human body and ensure the drainage stability of the drainage tube.

It should be understood that the tube made of rubber, silicone rubber, silicon rubber and polyurethane is the preferred embodiment in the present invention, and the material of the drainage tube is not limited to rubber, silicone rubber, silicon rubber and polyurethane, and other elastic materials meeting the use requirement that have not been proposed are included in the disclosure of the present invention.

The working principle of the air suction type air pressure driven fixed drainage tube is as follows:

according to the drainage tube, the two side edges of the opening of the adsorption port 22 are respectively provided with the adsorption bud parts 221, so that after the adsorption port 22 adsorbs the surface of a human body, the adsorption bud parts 221 can further adsorb, and therefore the phenomenon that the adsorption port 22 is loosened from the surface of the human body under the condition that negative pressure fluctuates is avoided, the working stability of the drainage tube can be remarkably improved, and the overall reliability and safety are improved.

On the other hand, the drainage tube is provided with a plurality of adsorption ports 22 which are arranged at intervals, and the opening size of the adsorption ports 22 is gradually reduced from two ends to the middle of the negative pressure fixing cavity 2, so that the stress distribution between the adsorption ports 22 is more reasonable, the integral stress of the drainage tube is more uniform, and the risk of fracture caused by stress concentration is greatly reduced.

In addition, the invention carries out adsorption through pulse negative pressure, and the negative pressure of the pulse is matched with the adsorption bud part 221, thus actively promoting the blood circulation in the human body, effectively increasing the blood supply of the human body and improving the treatment effect.

Other structures of the air-breathing type pneumatic driving fixed drainage tube described in the embodiment are disclosed in the prior art.

Example 2

This embodiment 2 discloses a fixed drainage tube of formula of breathing in air pressure drive, and its structure and principle are unanimous with embodiment 1, and the difference of this embodiment 2 and embodiment 1 lies in: the inward tip of the adsorption bud part 221 is provided with a round angle.

As shown in fig. 5, in the present embodiment, the inward tip of the adsorption bud 221 is provided with a rounded corner, and the radius of the rounded corner is preferably 0.04 mm. The setting of fillet is convenient for process, reduction in production cost, and can reduce the damage of absorption bud portion 221 to human tissue effectively, when adsorbing the surface of mouthful 22 absorption human tissue, inhale to adsorbing mouthful 22 inside because of suction with partial human tissue, adsorb bud portion 221 can follow both sides hook and adsorb mouthful 22 inspiratory human tissue, make the connection of adsorbing mouthful 22 and human tissue more firm, whole difficult pine takes off. The round angle makes the adsorption bud part 221 easier to process, the production cost can be effectively reduced, and the production efficiency is improved.

This embodiment 2 is through setting up the fillet for when adsorbing bud portion 221 further adsorbs human tissue, it is littleer to the injury of human body, inhale and the absorbent process more smooth, be favorable to production simultaneously.

Example 3

This embodiment 3 discloses a fixed drainage tube of formula of breathing in air pressure drive, and its structure and principle are consistent with embodiment 1, and the difference of this embodiment 3 and embodiment 1 lies in: the tube body is made of one material of polylactic acid, polyglycolic acid and polylactic acid-glycolic acid copolymer.

When drainage is carried out, under the condition that the tube body is broken, part of the tube body is left in a human body, the health and the normal function of the human body can be influenced, if the tube body is additionally taken out, the operation can be delayed, and the condition of illness of people can be worsened or the people can die in serious cases. Therefore, in embodiment 3 of the present invention, the drainage chamber 1, the negative pressure fixing chamber 2, the air inlet chamber 3, and the liquid inlet chamber 4 are formed in a tube body together, and the tube body is made of a bioabsorbable medical material. When the pipe body part is left in the human body, an extra taking-out step is not needed, and the risk in the human body can be effectively reduced.

Specifically, the tube body is made of one material of polylactic acid, polyglycolic acid, and polylactic acid-glycolic acid copolymer. Polylactic acid, polyglycolic acid and polylactic acid-glycolic acid copolymer all belong to bioabsorbable medical material, when carelessly leave behind in the human body, the human body can absorb the body to avoid the body to influence the normal function of human body, in order to improve the security.

It should be understood that the tube made of polylactic acid, polyglycolic acid and polylactic acid-glycolic acid copolymer is a preferred embodiment in the present invention, and the material of the drainage tube is not limited to polylactic acid, polyglycolic acid and polylactic acid-glycolic acid copolymer, and other bioabsorbable medical materials meeting the use requirements that have not been proposed are included in the disclosure of the present invention.

This embodiment 3 is also applicable to the

embodiments

2 and 4.

Example 4

This embodiment 4 discloses a fixed drainage tube of formula of breathing in air pressure drive, and its structure and principle are consistent with embodiment 1, and the difference of this embodiment 4 and embodiment 1 lies in: the adsorption port 22 is not provided with the adsorption bud part 221.

As shown in fig. 6, in the present embodiment 4, the opening of the adsorption port 22 is not provided with the adsorption bud part 221, and the structure without the adsorption hook 221 can greatly reduce the production cost and improve the production efficiency.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. An air suction type air pressure driven fixed drainage tube is characterized by comprising a drainage cavity, a negative pressure fixed cavity, an air inlet cavity and a liquid inlet cavity;

2. The aspirating, pneumatically driven, stationary drain of claim 1, wherein:

the cross section of the adsorption port is of a semicircular structure.

3. The aspirating, pneumatically driven, stationary drain of claim 2, wherein:

a plurality of the adsorption ports are equidistantly distributed in the negative pressure fixing cavity.

4. The aspirating, pneumatically driven, stationary drain of claim 3, wherein:

the cross sectional areas among the plurality of adsorption ports are the same in size, and the width of the adsorption ports is gradually reduced from two ends of the negative pressure fixing cavity to the middle of the negative pressure fixing cavity.

5. The aspirating, pneumatically driven, stationary drain of claim 4, wherein:

the width range of the adsorption port is 0.3-3 mm.

6. The aspirating, pneumatically driven, stationary drain of claim 1, wherein:

the inward pointed end part of the adsorption bud part is provided with a round angle.

7. The aspirating, pneumatically driven, stationary drain of claim 6, wherein:

the radius of the fillet is 0.04 mm-3 mm.

8. The aspirating, pneumatically driven, stationary drain of claim 1, wherein:

the drainage cavity, the negative pressure fixing cavity, the air inlet cavity and the liquid inlet cavity are formed in a pipe body together.

9. The aspirating, pneumatically driven, stationary drain of claim 8, wherein:

the pipe body is made of one of rubber, silica gel, silicon rubber and polyurethane.

10. The aspirating, pneumatically driven, stationary drain of claim 8, wherein:

the tube body is made of one material of polylactic acid, polyglycolic acid and polylactic acid-glycolic acid copolymer.