CN106581789B - External multi-pipeline converter for negative pressure closed drainage system - Google Patents

External multi-pipeline converter for negative pressure closed drainage system Download PDF

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Publication number
CN106581789B
CN106581789B CN201611137675.6A CN201611137675A CN106581789B CN 106581789 B CN106581789 B CN 106581789B CN 201611137675 A CN201611137675 A CN 201611137675A CN 106581789 B CN106581789 B CN 106581789B
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independent
negative pressure
groups
connector
communicated
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CN106581789A (en
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刘攀
官红霞
夏熙明
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Wuhan VSD Medical Science and Technology Co Ltd
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Wuhan VSD Medical Science and Technology Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Pulmonology (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

The invention discloses an external multi-pipeline converter for a negative pressure closed drainage system, which comprises a shell, wherein the shell comprises a front shell and a rear shell plate assembled with one surface of the front shell in a matched manner, a connecting boss is arranged on the surface of the other surface of the front shell, a plurality of groups of connecting cylindrical groove groups are arranged on the connecting boss, a junction boss is arranged in the center of the surface of the other surface of the rear shell plate, a group of connecting cylindrical groove groups are arranged on the junction boss, and a connector is arranged on the cylindrical groove groups; the front shell and the rear shell are provided with independent grooves which are not communicated, the two grooves are respectively communicated with the spaced independent solution channels or the independent gas transmission channels, and the two grooves are respectively communicated with the corresponding through holes. The multi-pipeline converter adopts a foolproof design, and can prevent the damage of drainage equipment or delay treatment caused by the connection error of the external pipeline connector in the serial use process.

Description

External multi-pipeline converter for negative pressure closed drainage system
Technical Field
The invention relates to a converter, in particular to an external multi-pipeline converter for a negative pressure closed drainage system.
Background
Clinical studies and practices have shown that providing negative pressure near the tissue site enhances and accelerates the growth of new tissue at the site. There are various applications of this phenomenon, but the application of negative pressure is particularly successful in treating wounds. Such treatment (commonly referred to in the medical community as "negative pressure wound therapy") provides a number of benefits, including faster healing and increased granulation tissue formation. Typically, negative pressure therapy is applied to the tissue through a porous adjunct. The porous auxiliary material comprises multi-dimensional communicating pores which conduct negative pressure to the tissue and direct fluid drawn from the tissue. The fluid or exudate is typically collected in a tank for disposal and analysis.
However, in the existing negative pressure closed drainage treatment, a patient often encounters a situation that a plurality of wound repair dressings are required to be used for treatment at the same time. The adoption of the double-cavity drainage tube for drainage and wound pressure monitoring requires the use of a customized connector, the connector can realize that drainage and pressure monitoring channels are independent and non-communicated structures, if the connector is intended to realize serial connection through a conventional three-way connecting tube, the connector is intended to realize drainage of a plurality of wound repair dressings through one drainage device and realize monitoring of pressure at the wound, so that operation becomes very complicated, and in addition, a pipeline connection error (such as the connection of the pressure monitoring tube and the drainage tube) is easy to cause in operation, and the direct hazard of the pipeline connection error causes damage to a pressure detection element of the drainage device or damage to the device.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an external multi-pipeline converter for a negative pressure closed drainage system, which is a mechanism for communicating a plurality of double pipelines (drainage tubes and wound pressure monitoring tubes) led out from wound repair dressing ends with a wound liquid collecting tank (drainage bottle), so that one drainage device can drain a plurality of wound repair dressings and monitor the pressure at a wound. Furthermore, the connection operation is convenient, and the purpose of preventing the erroneous connection of the pipeline is realized.
In order to achieve the above purpose, the external multi-pipeline converter for the negative pressure closed drainage system comprises a shell, wherein the shell comprises a front shell and a rear shell plate assembled with one surface of the front shell in a matching way, a connecting boss is arranged on the surface of the other surface of the front shell, a plurality of groups of connecting cylindrical groove groups are arranged on the connecting boss, an intersection boss is arranged in the center of the surface of the other surface of the rear shell plate, a group of connecting cylindrical groove groups are arranged on the intersection boss, each group of connecting cylindrical groove groups consists of two independent cylindrical grooves, a plurality of independent channels are independently arranged in the front shell, each independent channel is communicated with the corresponding cylindrical groove, a hollow plug is arranged in the cylindrical groove of the connecting boss, the plug penetrates through the cylindrical groove to enter the independent channel, a group of through holes are formed in one surface of the rear shell plate, the through holes are communicated with the cylindrical grooves on the intersection boss, and a connector is arranged on the cylindrical groove groups;
the connector comprises a connector and two independent branch joints arranged on the connector, wherein two independent pipelines are arranged in the connector, the center of each branch joint is a hollow channel, and the pipelines are communicated with the corresponding hollow channels and communicated with the corresponding hollow plugs to form independent solution channels or independent gas transmission channels;
the front shell and the rear shell are provided with independent grooves which are not communicated, the two grooves are communicated with the spaced independent solution channels or the independent gas transmission channels respectively, and the two grooves are communicated with the corresponding through holes respectively. The front shell and the rear shell are welded in an ultrasonic mode, the welding line surrounds independent channels on the front shell, which are adjacent to each other at intervals, and after the ultrasonic welding is finished, the independent channels on the front shell, which are adjacent to each other at intervals, are mutually communicated, and the channels, which are adjacent to each other, are mutually isolated. The front shell and the rear shell can be bonded in an adhesive manner, but it is also necessary to communicate the independent channels adjacent to each other on the front shell, and the channels adjacent to each other are isolated from each other, for example, adhesive grooves are arranged on the peripheries of the independent channels adjacent to each other on the front shell, and corresponding adhesive bosses are arranged on the rear shell plate, so that the purpose is achieved after the front shell and the rear shell are bonded.
Further, the pipe inner diameter is greater than the inner diameter of the hollow passage.
Still further, branch joint front end is provided with the seal groove, be provided with the sealing washer on the seal groove. After the branch joint is in butt joint with the cylindrical groove of the front shell, the outer ring of the sealing ring is tightly adhered to the inner surface of the cylindrical groove, the inner ring of the sealing ring is tightly adhered to the outer surface of the sealing groove, and therefore external gas can not flow into the converter through the sealing ring. The liquid or gas also fed from the connector cannot flow through the sealing ring to the environment. This condition ensures that the fluid (gas or liquid) medium can only circulate in the channel formed by the transducer and the connector.
Still further, both side wall surfaces of the connector are provided with buckles, and the buckles are connected with the connecting boss or the clamping grooves on the side walls of the intersection boss in a matched mode.
Still further, the end cap comprises cylinder platform and cylinder, cylinder platform top opening, the cylinder other end is sealed, and its front portion is provided with the seal groove, be provided with the sealing washer on the seal groove.
Still further, be provided with a vertical runway type through-hole on the cylinder outer peripheral face, and runway type through-hole communicates with end cap central authorities cavity.
Still further, the junction of cylinder groove and passageway is provided with annular stopper, be provided with the spring ring on the cylinder outer wall between cylinder platform and the annular stopper, seal groove on the cylinder stretches into in the passageway.
Still further, annular stopper and independent passageway junction surface are the conical surface, the inner wall of sealing washer is hugged closely the sealing groove wall, the conical surface is hugged closely to the sealing washer outer wall. The spring is sleeved on the plug, and the spring is used for enabling the sealing ring to be tightly attached to the conical surface of the inner hole formed in the front shell through the action of elasticity, so that sealing is formed, and the circulation of gas or liquid is blocked.
The invention has the beneficial effects that:
1) The multi-pipeline converter can be simultaneously connected with a plurality of groups of external pipeline connectors in series, so that one drainage device can simultaneously drain a plurality of patient wounds and monitor the pressure at the wounds.
2) The multi-pipeline converter is connected with an external pipeline connector in an airtight manner, so that safe transmission of fluid (liquid or gas) is realized.
3) The multi-pipeline converter is connected with an external pipeline connector simply and reliably, and the pipeline connection is prevented from accidentally breaking loose in the use process.
4) The multi-pipeline converter adopts a foolproof design, and can prevent the damage of drainage equipment or delay treatment caused by the connection error of an external pipeline connector (such as interconnection of a drainage channel and a pressure monitoring channel) in the process of serial connection.
Drawings
FIG. 1 is a perspective view of an external multi-circuit transducer for a negative pressure closed drainage system of the present invention;
FIG. 2 is a front view of an external multi-circuit transducer for a negative pressure closed drainage system of the present invention;
FIG. 3 is a left side view of an external multi-circuit transducer for a negative pressure closed drainage system of the present invention;
FIG. 4 is a bottom view of an external multi-circuit transducer for a negative pressure closed drainage system of the present invention;
FIG. 5 is a split view of FIG. 1;
FIG. 6 is a split view of the plane of FIG. 4 A-A;
FIG. 7 is an assembled view of the faces of FIGS. 4 A-A;
FIG. 8 is an enlarged view of the connector;
FIG. 9 is an enlarged view of a plug;
fig. 10 is a schematic view of the connection surface of the front shell 1 and the rear shell plate 2;
FIG. 11 is a schematic view of the surface B-B of FIG. 10;
FIG. 12 is a front view of a transducer for multi-wound tubing connection;
FIG. 13 is a bottom view of a transducer for multi-wound tubing connection;
in the figure, a front shell 1, an independent channel 1.1, a rear shell plate 2, a through hole 2.1, a connecting boss 3, a connecting cylindrical groove group 4, a cylindrical groove 4.1, a junction boss 5, a plug 6, a cylindrical table 6.1, a cylindrical 6.2 runway type through hole 6.3, a connector 7, a connector 7.1, a pipeline 7.11, a branch joint 7.2, a hollow channel 7.21, a 7.3 buckle 7.3, a sealing groove 8, a sealing groove 9, a sealing ring 10, an annular limiting block 11, a clamping groove 12, a spring ring 13, a conical surface 14, a sucker device 15, an external pipeline 15.1, a sucker 15.2, an external connecting pipe 16, a drainage bottle 17 and a pressure monitoring pipeline 18.
Detailed Description
The present invention is described in further detail below with reference to the drawings and specific embodiments for the understanding of those skilled in the art.
As shown in the figure: an external multi-pipeline converter for a negative pressure closed drainage system comprises a shell, wherein the shell comprises a front shell 1 and a rear shell plate 2 which are welded and assembled in an ultrasonic mode, a connecting boss 3 is arranged on the surface of the other surface of the front shell 1, 3 groups of connecting cylindrical groove groups 4 are arranged on the connecting boss 3, an intersection boss 5 is arranged in the center of the surface of the other surface of the rear shell plate 2, a group of connecting cylindrical groove groups 4 are arranged on the intersection boss 5, each group of connecting cylindrical groove groups 4 consists of two independent cylindrical grooves 4.1, a plurality of independent channels 1.1 are independently arranged in the front shell 1, each independent channel 1.1 is communicated with the corresponding cylindrical groove 4.1, a hollow plug 6 is arranged in the cylindrical groove 4.1 of the connecting boss 3, the plug 6 penetrates through the cylindrical groove 4.1 to enter the independent channel 1, a group of through holes 2.1 are arranged on one surface of the rear shell plate 2, the through holes 2.1 are communicated with the cylindrical grooves 4.1 on the intersection boss 5, and a connector 7 is arranged on the cylindrical groove groups 4;
the connector 7 comprises a connector 7.1 and two independent branch joints 7.2 arranged on the connector 7.1, two opposite pipelines 7.11 are arranged in the connector 7.1, a hollow channel 7.21 is arranged in the center of the branch joint 7.2, and the inner diameter of the pipeline 7.11 is larger than that of the hollow channel 7.21; the pipeline 7.11 is communicated with the corresponding hollow channel 7.21 and is communicated with the corresponding hollow plug 6 to form an independent solution channel or an independent gas transmission channel;
the front shell and the rear shell are provided with 2 groups of independent and non-communicated grooves 8 on the connecting surface, the two groups of grooves 8 are respectively communicated with the spaced independent solution channels or the independent gas transmission channels, the front shell 1 and the rear shell plate 2 are welded in an ultrasonic mode, the welding line surrounds the independent channels adjacent to each other on the front shell and forms 2 independent and non-communicated grooves 8, the 2 grooves 8 are respectively communicated with the independent channels adjacent to each other at intervals, and the channels adjacent to each other are isolated from each other. At the same time, the two groups of grooves 8 are respectively communicated with the corresponding through holes 2.1.
The front end of the branch joint 7.2 is provided with a sealing groove 9, and a sealing ring 10 is arranged on the sealing groove. After the branch joint 7.2 is in butt joint with the cylindrical groove 4.1 of the front shell 1, the outer ring of the sealing ring 10 is tightly adhered to the inner surface of the cylindrical groove 4.1, the inner ring of the sealing ring 10 is tightly adhered to the outer surface of the sealing groove 9, and therefore external gas can not flow into the converter through the sealing ring. The liquid or gas also fed from the connector cannot flow through the sealing ring to the environment. This condition ensures that the fluid (gas or liquid) medium can only circulate in the channel formed by the transducer and the connector.
The plug 6 comprises a cylindrical table 6.1 and a cylinder 6.2, the top end of the cylindrical table 6.1 is open, the other end of the cylinder 6.2 is closed, the front part of the plug is provided with a sealing groove 9, and the sealing groove 9 is provided with a sealing ring 10.
The outer circumferential surface of the cylinder 6.2 is provided with a vertical runway-shaped through hole 6.3, and the runway-shaped through hole 6.3 is communicated with the central hollow part of the plug 6.
The junction of cylinder groove 4.1 and passageway 1.1 is provided with annular stopper 11, is provided with spring ring 13 on the cylinder 6.2 outer wall between cylinder platform 6.1 and the annular stopper 11, and seal groove 9 on the cylinder 6.2 stretches into in the passageway 1.1.
The connection surface of the annular limiting block 11 and the independent channel 1.1 is a conical surface 14, the inner wall of the sealing ring 10 is tightly attached to the wall of the sealing groove 9, and the outer wall of the sealing ring 10 is tightly attached to the conical surface 14. The spring is sleeved on the plug, and the spring is used for enabling the sealing ring to be tightly attached to the inner hole conical surface (see the figure) of the front shell through the action of elasticity, so that sealing is formed, and the circulation of gas or liquid is blocked.
The surfaces of the two side walls of the 4 connectors 7 are respectively provided with 7.3 buckles 7.3,7.3 buckles 7.3 which are matched with the clamping grooves 12 on the side walls of the connecting boss 3 or the intersection boss 5.
Method for mounting and dismounting external multi-pipeline converter
When the external multi-pipeline converter is installed, the connector 7 is fixedly connected with the clamping groove 12 through the 7.3 buckle 7.3, at the moment, the front end of the branch joint 7.2 of the connector 7 props against the top surface of the cylindrical table 6.1 of the plug 6, the spring ring 13 is in a compressed state, the sealing ring 10 arranged on the sealing groove 9 of the plug 6 is separated from the conical surface 14 at the moment, and further, a part of runway type through holes arranged on the plug enter the conical surface 14, so that gas or liquid passing through the inner holes of the plug 6 can enter the independent channel 1.1 through the runway type through holes 6.3.
When the external multi-pipe converter is disassembled, when the connector 7.3 is buckled 7.3 to be separated from the clamping groove 12, the spring ring 13 under compression is released, at the moment, the spring ring 13 pushes the plug 6 outwards from the independent channel 1.1, and further, the sealing ring 10 arranged on the plug is provided with the conical surface 14 at the moment. The racetrack through-hole 6.3 in the plug 6 has exited beyond the conical surface 14. This allows that the fluid or gaseous medium transported in the bore of the connector will not be able to pass through the separate channel 1.1.
The use process is as follows:
as shown in the figure, two independent nozzles 6 at one end of 3 connectors 7 on the connecting boss 3 are respectively connected with two external pipelines 15.1 of a sucker device 15, the sucker 15.2 is placed on the surface of a negative pressure drainage dressing, 1 independent nozzle at the other end of the connector 7 on the intersection boss 5 is sequentially connected with an external connecting pipe 16 and a drainage bottle 17, and the other independent nozzle is connected with a pressure monitoring pipeline 18, so that drainage and wound pressure monitoring channels of a negative pressure closed drainage system are constructed. In the actual working process, the number of the connectors of the connecting boss 3 can be changed according to the actual situation, the above embodiment only describes an example of the 3 connectors, and in fact, 2 or more than 3 connectors can be provided according to the clinical treatment needs.
Other parts not described in detail are prior art. Although the foregoing embodiments have been described in some, but not all, embodiments of the invention, it should be understood that other embodiments may be devised in accordance with the present embodiments without departing from the spirit and scope of the invention.

Claims (8)

1. An external multi-circuit transducer for a negative pressure closed drainage system, characterized by: the converter comprises a shell, wherein the shell comprises a front shell (1) and a rear shell plate (2) assembled with one surface of the front shell (1), a connecting boss (3) is arranged on the surface of the other surface of the front shell (1), a plurality of groups of connecting cylindrical groove groups (4) are arranged on the connecting boss (3), an intersection boss (5) is arranged in the center of the surface of the other surface of the rear shell plate (2), a group of connecting cylindrical groove groups (4) are arranged on the intersection boss (5), each group of connecting cylindrical groove groups (4) consists of two independent cylindrical grooves (4.1), a plurality of independent channels (1.1) are independently arranged in the front shell (1), each independent channel (1.1) is communicated with the corresponding cylindrical groove (4.1), a hollow plug (6) is arranged in the cylindrical groove (4.1) of the connecting boss (3), one surface of the rear shell plate (2) is provided with a group of connecting cylindrical groove groups (4.1), and one surface of the rear shell plate (2) is provided with a group of through holes (2.1) of connecting cylindrical groove groups (4.1), and the through holes (4.1) are communicated with the cylindrical groove groups (4.1);
the connector (7) comprises a connector (7.1) and two independent branch joints (7.2) arranged on the connector (7.1), two opposite pipelines (7.11) are arranged inside the connector (7.1), a hollow channel (7.21) is arranged in the center of the branch joint (7.2), and the pipelines (7.11) are communicated with the corresponding hollow channels (7.21) and are communicated with corresponding hollow plugs (6) to form independent solution channels or independent gas transmission channels
The front shell and the rear shell are provided with 2 groups of independent and non-communicated grooves (8), the two groups of grooves (8) are respectively communicated with the independent solution channels or the independent gas transmission channels at intervals, and the two groups of grooves (8) are respectively communicated with the corresponding through holes (2.1).
2. The external multi-circuit transducer for a negative pressure closed drainage system of claim 1, wherein: the inner diameter of the pipeline (7.11) is larger than that of the hollow channel (7.21).
3. The external multi-circuit transducer for a negative pressure closed drainage system of claim 2, wherein: the front end of the branch joint (7.2) is provided with a sealing groove (9), and a sealing ring (10) is arranged on the sealing groove (9).
4. The external multi-circuit transducer for a negative pressure closed drainage system of claim 2 or 3, wherein: the connector is characterized in that buckles (7.3) are arranged on the surfaces of two side walls of the connector (7), and the buckles are connected with clamping grooves (12) on the side walls of the connecting boss (3) or the intersection boss (5) in a matched mode.
5. The external multi-circuit transducer for a negative pressure closed drainage system of claim 2 or 3, wherein: the plug (6) consists of a cylindrical table (6.1) and a cylinder (6.2), wherein the top end of the cylindrical table (6.1) is open, the other end of the cylinder (6.2) is closed, the front part of the cylinder is provided with a sealing groove (9), and the sealing groove (9) is provided with a sealing ring (10).
6. The external multi-circuit transducer for a negative pressure closed drainage system of claim 5, wherein: the outer circumferential surface of the cylinder (6.2) is provided with a vertical runway-shaped through hole (6.3), and the runway-shaped through hole (6.3) is communicated with the central hollow part of the plug (6).
7. The external multi-circuit transducer for a negative pressure closed drainage system of claim 5, wherein: the circular limiting block (11) is arranged at the joint of the cylindrical groove (4.1) and the independent channel (1.1), a spring ring (13) is arranged on the outer wall of the cylinder (6.2) between the cylindrical table (6.1) and the circular limiting block (11), and a sealing groove (9) on the cylinder (6.2) stretches into the independent channel (1.1).
8. The external multi-circuit transducer for a negative pressure closed drainage system of claim 7, wherein: the connection surface of the annular limiting block (11) and the independent channel (1.1) is a conical surface (14), the inner wall of the sealing ring (10) is tightly attached to the wall of the sealing groove (9), and the outer wall of the sealing ring (10) is tightly attached to the conical surface (14).
CN201611137675.6A 2016-12-12 2016-12-12 External multi-pipeline converter for negative pressure closed drainage system Active CN106581789B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN106581789B true CN106581789B (en) 2023-05-26

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ITTO20060206A1 (en) * 2006-03-17 2007-09-18 Borla Ind VALVE VALVE FOR MEDICAL LINES
CN201370812Y (en) * 2008-11-25 2009-12-30 北京双鹤药业股份有限公司 Coupler for peritoneal dialysis transfusion/discharge system and peritoneal dialysis transfusion/discharge system
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CN206652028U (en) * 2016-12-12 2017-11-21 武汉维斯第医用科技股份有限公司 Outside multi-pipeline converter for negative-pressure sealed drainage system

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