CN107875506A - Medical apparatus and infusion set - Google Patents
Medical apparatus and infusion set Download PDFInfo
- Publication number
- CN107875506A CN107875506A CN201710880384.4A CN201710880384A CN107875506A CN 107875506 A CN107875506 A CN 107875506A CN 201710880384 A CN201710880384 A CN 201710880384A CN 107875506 A CN107875506 A CN 107875506A
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- China
- Prior art keywords
- pipe
- medical apparatus
- leading section
- connecting tube
- base end
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Classifications
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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
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/08—Tubes; Storage means specially adapted therefor
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (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)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Medical apparatus and infusion set provided by the invention, even if the internal pressure at the position that pipe links via the pipe of link each other rises, the fluid that can also suppress internal is spilt.The medical apparatus of the present invention possesses：First pipe；Second pipe, it has：The leading section of tubulose, the leading section are more than the sealing of the internal diameter of first pipe with external diameter in its natural state, and are inserted in first pipe；The base end part of tubulose, it is connected with the leading section；3rd pipe, it is inserted in the base end part from the cardinal extremity opening of second pipe.
Description
Technical field
The present invention relates to medical apparatus and infusion set.
Background technology
In the case where infusing patient, it is necessary to form the path (transfusion circuit) for conveying the fluids such as decoction.
Generally, infusing circuit can be by the way that the part including tubular portions such as woven hose, various medicine equipments (be also simply remembered below
Carry as " pipe ") connected to each other formed.When that will manage connected to each other, make the pipe of link sometimes between each pipe.
For example, Patent Document 1 discloses a kind of medical decoction conveyer, it possesses branch pipe, connector and pipe,
One end of pipe and the opening of branch pipe are connected, and the other end of pipe is connected with connector, therefore can be entered between branch pipe and connector
The conveying of row decoction.
Patent document 1：Japanese Unexamined Patent Publication 2012-19829 publications
However, in the transfusion for forming the transfusion circuit including the position for linking pipe via the pipe of link each other
In component, if because fluid it is surging flow into etc. internal pressure is increased, exist fluid the mutual bond sites of pipe be possible to from
Manage the problem of mutual gap is spilt.
The content of the invention
In view of the above problems, to link each other via the pipe of link even if it is an object of the invention to provide a kind of pipe
The internal pressure at position rises, the medical apparatus and infusion set that the fluid that can also suppress internal is spilt.
To achieve these goals, medical apparatus of the invention, it is characterised in that possess：First pipe；Second pipe, it has
Have：The leading section of tubulose, the leading section are more than the sealing of the internal diameter of first pipe with external diameter in its natural state, and insert
Enter first pipe；The base end part of tubulose, it is connected with the leading section；3rd pipe, it is opened from the cardinal extremity of second pipe
Mouth is inserted in the base end part.
Here, the medical apparatus of the present invention is preferably, second pipe is softer than the described first pipe.
In addition, the medical apparatus of the present invention is preferably, second pipe is harder than the described 3rd pipe.
In addition, the medical apparatus of the present invention is preferably to be also equipped with strengthening part, the strengthening part is from outside covering described the
At least a portion of at least a portion of one pipe and second pipe.
In addition, the medical apparatus of the present invention is preferably, the strengthening part from outside cover in second pipe with it is described
At least a portion of the overlapping position of 3rd pipe.
In addition, the medical apparatus of the present invention is preferably that the external diameter of the leading section of second pipe is via outer side steps
Face and than the external diameter undergauge of the base end part, the outside cascaded surface is configured to support with what the openend of first pipe abutted
Junction.
In addition, the medical apparatus of the present invention is preferably, the inwall of the base end part of second pipe have make internal diameter from
The inner side cascaded surface that the lateral base end side in front end expands, the inner side cascaded surface are configured to abut with the openend of the 3rd pipe
Bearing surface.
In addition, the medical apparatus of the present invention is preferably, the internal diameter of the 3rd pipe with from the inner side of second pipe
The internal diameter for the front that cascaded surface rises is roughly the same.
In addition, the medical apparatus of the present invention is preferably that in its natural state, the leading section of second pipe has：
The front in maximum outside diameter portion and outer radial the maximum outside diameter portion and the reducing diameter part of base end side undergauge, the sealing is at least
Including the maximum outside diameter portion.
In addition, the medical apparatus of the present invention is preferably that the sealing is along the leading section of second pipe
Arranged circumferentially collar flange, in its natural state in the axial section observation along second pipe, the ring-type is convex
Edge is bent.
In addition, to achieve these goals, infusion set of the invention is characterised by, possesses above-mentioned medical apparatus.
Even if rising in accordance with the invention it is possible to provide the internal pressure at position that pipe links via the pipe of link each other,
The medical apparatus and infusion set that the fluid that can suppress internal is spilt.
Brief description of the drawings
Fig. 1 is the stereogram for the medical apparatus for being denoted as the first embodiment of the present invention.
Fig. 2 is the sectional view for the part for representing the medical apparatus shown in Fig. 1.
Fig. 3 is the side view under the nature of the leading section of the connecting tube shown in Fig. 1.
Fig. 4 (a), Fig. 4 (b), Fig. 4 (c) are the figures of the summary for the assembling procedure for representing the medical apparatus shown in Fig. 1 successively.
Fig. 5 (a), Fig. 5 (b) are the side views under the nature of the leading section of the variation of the connecting tube shown in Fig. 1.
Fig. 6 is the infusion set for possessing the medical apparatus shown in Fig. 1 for being denoted as second embodiment of the present invention
Figure.
Description of reference numerals：1 ... medical apparatus；10 ... retainers；11 ... keep frame body；12 ... first end oral areas (the
One pipe)；13 ... second port portions；14 ... the 3rd port parts；The stream of 15 ... retainers；16 ... keep the bottom wall of frame body；
17 ... keep the perisporium of frame body；The opening of 18 ... first end oral areas；The opening in 19 ... second port portions；21 ... first end oral areas
Openend；22 ... expanding convex portions；30th, 30 ', 30 " ... connecting tubes (the second pipe)；31st, the leading section of 31 ', 31 " ... connecting tubes；
32 ... collar flanges (sealing)；33rd, 33 ', 33 " ... maximum outside diameter portions；34th, 34 ', 34 " ... reducing diameter parts；35 ... outside cascaded surfaces
(bearing surface)；The stream of 39 ... connecting tubes；The base end part of 41 ... connecting tubes；42 ... cardinal extremity openings；43 ... inner side cascaded surfaces (abut
Face)；50 ... pipes (the 3rd pipe)；The openend of 51 ... pipes；The stream of 52 ... pipes；80 ... strengthening parts；81 ... expanding recesses；
110 ... infusion sets；The woven hoses of 111a ... first；The woven hoses of 111b ... second；112 ... drop cylinders；113 ... fixtures；114 ... rows
Air filter；115 ... pipe clamps；A ... is axially；B ... is circumferential；The external diameter of the sealing of R1 ... connecting tubes；R2 ... connecting tubes (from interior
Offset tread starts) internal diameter of front；The internal diameter of R3 ... pipes.
Embodiment
Hereinafter, various embodiments of the present invention will be described referring to the drawings.It is identical to part mark common in each figure
Reference.
(first embodiment)
Fig. 1 is the stereogram for the medical apparatus 1 for being denoted as the first embodiment of the present invention.In addition, Fig. 2 is to represent to cure
Treat the sectional view of a part for utensil 1.As shown in Figure 1 and Figure 2, medical apparatus 1 possesses retainer 10, connecting tube 30, pipe 50
And strengthening part 80.Retainer 10, connecting tube 30, pipe 50 and 80 respective structure of strengthening part are carried out in detail below
Explanation.
The ＞ of ＜ retainers 10
As shown in figure 1, retainer 10 possess keep frame body 11, be arranged at the holding frame body 11 outer wall multiple ends
Oral area is first end oral area 12 and second port portion 13.Frame body 11, first end oral area 12 and second port portion 13 is kept to divide
Other that hollow bulb is divided, above-mentioned hollow bulb is interconnected and forms the stream 15 of retainer 10.In addition, omit in Fig. 1
Form the 3rd port part is installed on the cover and elastic valve body for keeping frame body 11.
Frame body 11 is kept to possess：Substantially cylindric perisporium 17 and the bottom wall 16 for closing one end of the perisporium 17,
A part for inside division stream 15.In addition in Fig. 1, the other end of perisporium 17 opens, but as described above, in the other end
Cover and elastic valve body (not shown) are installed, so as to form the 3rd port part.
First end oral area 12 is arranged to protrude from the appearance for the perisporium 17 for keeping frame body 11 towards radial outside.First end
Oral area 12 is the tube of a part for division stream 15.Connecting tube 30 is connected with the opening 18 of first end oral area 12.In addition
As shown in Fig. 2 first end oral area 12 outer wall be provided with by keep frame body 11 side it is a part of it is expanding form it is expanding convex
Portion 22.First end oral area 12 is also recited as the first pipe below.
The clamping of second port portion 13 keeps frame body 11, and is arranged in the position with 12 opposite side of first end oral area from guarantor
The appearance for holding the perisporium 17 of frame body 11 protrudes towards radial outside.Second port portion 13 is the pipe of a part for division stream 15
Shape portion.Opening 19 in second port portion 13 can connect the medical apparatus such as other medical pipes.
In addition, the 3rd port part is arranged at the side with 16 opposite side of bottom wall in the perisporium 17 for keeping frame body 11.3rd
Port part divides a part for stream 15.3rd port part is so-called mixed water injection port part, such as can be relative in first end
The liquid of flowing between oral area 12 and second port portion 13 and in the stream 15, by the liquid such as the decoction different from the liquid via
3rd port part mixed water injection is to (reference picture 6 " the 3rd port part 14 ") in stream 15.
As the material of retainer 10, such as the polyolefin such as polyethylene of illustrating out, polypropylene, ethylene-propylene copolymer；Second
Alkene-vinyl acetate copolymer (EVA)；Polyvinyl chloride；Polyvinylidene chloride；Polystyrene；Polyamide；Polyimides；Polyamides
Amine acid imide；Makrolon；Poly- (4- methylpentenes -1)；Ionomer；Acrylic resin；Polymethyl methacrylate；Acrylonitrile-
BS (ABS resin)；Acrylonitritrile-styrene resin (AS resins)；BS；
Polyethylene terephthalate (PET), polybutylene terephthalate (PBT) (PBT), polycyclohexylene's dimethanol
The polyester such as ester (PCT)；Polyethers；Polyether-ketone (PEK)；Polyether-ether-ketone (PEEK)；PEI；Polyformaldehyde (POM)；Polyphenylene oxide；
Noryl；Polysulfones；Polyether sulfone；Polyphenylene sulfide；Polyarylate；Aromatic polyester (liquid crystal polymer)；Polytetrafluoroethylene (PTFE), gather partially
The various resin materials such as PVF, other fluorine resins.Alternatively, it is also possible to being more than one the mixing for including above-mentioned material
Body, polymer alloy etc..Alternatively, it is also possible to being various glass materials, ceramic material, metal material.
The ＞ of ＜ connecting tubes 30
As shown in Fig. 2 connecting tube 30 has：The leading section 31 of tubulose and the base end part for the tubulose being connected with leading section 31
41, and divide the stream 39 for connecting leading section 31 and base end part 41.The leading section 31 of connecting tube 30 passes through retainer 10
The opening 18 of first end oral area 12 and be inserted into first end oral area 12.Thus, the stream 39 of connecting tube 30 and retainer 10
Stream 15 connects.In addition, in the base end part 41 of connecting tube 30, pipe 50 is inserted into inside by cardinal extremity opening 42.It is thus connected pipe
30 stream 39 connects with the stream 52 of pipe 50.Therefore the stream 52 of the stream 15 of retainer 10 and pipe 50 is connected by connecting tube 30
It is logical.Connecting tube 30 is also recited as the second pipe below.
Fig. 3 is the side view of the leading section 31 of connecting tube 30 in its natural state.As shown in figure 3, in its natural state, even
The leading section 31 of adapter 30 has maximum outside diameter portion 33 and a reducing diameter part 34, and the external diameter of the reducing diameter part 34 is towards maximum outside diameter portion 33
Front and the gradual undergauge of base end side.In other words, the leading section 31 of connecting tube 30 has the collar flange of circumferentially B configurations
32.In its natural state, collar flange 32 is bent into substantially when being observed along the axial section including connecting tube 30
Arc-shaped, and there is maximum outside diameter portion 33 and reducing diameter part 34.
The external diameter R1 in the maximum outside diameter portion 33 of the collar flange 32 under nature, more than the retainer 10 under nature
First end oral area 12 internal diameter.Therefore collar flange 32 is being compressed in a manner of reduced diameter and is being inserted into diameter than the ring
In the state of in the small first end oral area 12 of shape flange 32, it is intended to extend to expanding direction by recuperability, therefore such as Fig. 2 institutes
Show, be seamlessly close in circumferential whole region between the inwall of first end oral area 12 and form sealing.
So, in the state of being inserted into the leading section 31 of connecting tube 30 in first end oral area 12, collar flange 32 is in week
Seamlessly it is close to the inwall of first end oral area 12 to whole region, therefore suppresses the fluid such as decoction enters retainer 10 the
The inwall of one end oral area 12 and as the second pipe connecting tube 30 leading section 31 outer wall between.Even if therefore stream 15, stream
The internal pressure on road 39 rises, and the fluid that can also suppress internal is spilt.Particularly used for example in the material as retainer 10
Polypropylene, polyethylene terephthalate (PET), fluorine-type resin etc. are difficult to the situation of the resin by the depositions such as solvent or bonding
Under, it can also obtain above-mentioned effect.
As shown in FIG. 2 and 3, the external diameter of the leading section 31 of connecting tube 30 via outside cascaded surface 35 than base end part 41
External diameter more undergauge.In addition, outside cascaded surface 35 is configured to and the opening 18 of the first end oral area 12 formed with retainer 10
The bearing surface that openend 21 abuts.In addition, abutted figure 2 illustrates outside cascaded surface 35 with the openend 21 of first end oral area 12
State, can also be outside but as long as collar flange 32 is close in circumferential whole region with the inwall of first end oral area 12
Gap is produced between offset tread 35 and the openend 21 of first end oral area 12.
The inwall of the base end part 41 of connecting tube 30 have make internal diameter from front to the expanding inner side cascaded surface 43 of base end side.
In addition, inner side cascaded surface 43 is configured to the bearing surface abutted with the openend of pipe 50 51.In addition, figure 2 illustrates interior offset
The state that tread 43 abuts with the openend 51 of pipe 50, but can also be produced between interior offset tread 43 and the openend 51 of pipe 50
Raw gap.In the present embodiment, connecting tube 30 and pipe 50 are by mutually deposition or the bonding such as solvent.
Connecting tube 30 is shaped by die formings such as injection mouldings.As the material of connecting tube 30, such as day of illustrating out
T PNR, isoprene rubber, butadiene rubber, SBR styrene butadiene rubberses, nitrile rubber, neoprene, butyl rubber,
The various elastomeric materials such as acrylic rubber, ethylene-propylene rubber, epichlorohydrin rubber, polyurethane rubber, silicone rubber, fluorubber, benzene
Ethene system, polyolefin, polyvinyl chloride, polyurethane series, Polyester, polyamide-based, polybutadiene system, trans-polyisoprene
Two kinds of one kind of the various thermoplastic elastomer (TPE)s or above-mentioned material such as system, fluorubber system, haloflex system or mixing with
On the mixture that forms.
The ＞ of ＜ pipes 50
As shown in Fig. 2 pipe 50 is the part of tubulose, it is inserted into base end part 41 from the cardinal extremity opening 42 of connecting tube 30.
Here, the internal diameter R3 of pipe 50 is roughly the same with the internal diameter R2 of the front from the inner side cascaded surface 43 of connecting tube 30.Thus exist
Ladder is not produced between the stream 52 of pipe 50 and the stream 39 of connecting tube 30, therefore the fluids such as decoction, bubble residence can be suppressed.
Pipe 50 is also recited as the 3rd pipe below.
Pipe 50 is molding by extrusion to be waited die forming and shapes.As the material of pipe 50, for example, can illustrate out with it is above-mentioned
The material identical material of connecting tube 30.
The ＞ of ＜ strengthening parts 80
In the present embodiment, strengthening part 80 is the part of tubular, its first port from outside covering retainer 10
At least a portion in portion 12 and at least a portion of connecting tube 30.In the present embodiment, as shown in Fig. 2 strengthening part 80 exists
A side (Fig. 2 left side) for inwall possesses the expanding recess 81 that can be engaged with the expanding convex portion 22 of first end oral area 12, from
And the first end oral area 12 that inside is inserted into from a side is fixed by the engaging with expanding recess 81 of expanding convex portion 22.Separately
Expanding recess 81 can also be not provided with outside.In addition in the present embodiment, strengthening part 80 will be from another side by solvent etc.
(Fig. 2 right side) is inserted into the deposition of connecting tube 30 or bonding of inside.
In addition, as shown in Fig. 2 strengthening part 80 covers at least the one of position overlapping with pipe 50 in connecting tube 30 from outside
Part.Thus in the case of internal pressure in stream 39, stream 52 is elevated, pipe 50 is expanding, so as to killer tube 50 and connecting tube 30
Between bonding weaken, pipe 50 and the deposition of connecting tube 30 or the situation of Nian Jie stripping.
Strengthening part 80 is shaped by die formings such as injection mouldings.As the material of strengthening part 80, such as can arrange
Enumerate the material identical material with above-mentioned connecting tube 30.
It is here, respective hard to the first end oral area 12 of retainer 10, connecting tube 30, pipe 50 and strengthening part 80 respectively
Degree illustrates.If the hardness of first end oral area 12 is H12, the hardness of connecting tube 30 is H30, the hardness of pipe 50 is H50, strengthened
The hardness of part 80 is H80, then H12 ＞ H30 ＞ H50 relation is set up.In addition, H12 ＞ H80 relation is also set up.So, by
It is higher than the hardness of connecting tube 30 in the hardness of first end oral area 12, therefore in the assembling procedure of medical apparatus 1 described later, inciting somebody to action
When the leading section 31 of connecting tube 30 is inserted in the opening 18 of first end oral area 12, the external diameter of connecting tube 30 can be made to follow first end
The internal diameter of oral area 12.Further, since connecting tube 30 is softer than first end oral area 12, therefore when internal pressure rises, connecting tube 30 be intended to
The degree of expanding direction extension is intended to more than the degree of expanding direction extension for first end oral area 12.Therefore in first end oral area 12
Inwall and connecting tube 30 between the sealing that forms, can be played a role in a manner of being more close to, so as to suppress internal
Fluid is spilt.Similarly, since the hardness of first end oral area 12 is higher than the hardness of strengthening part 80, therefore in medical apparatus 1 described later
Assembling procedure in, strengthening part 80 can be made to follow the external diameter of first end oral area 12.Further, since first end oral area 12 is hard
Degree is higher than the hardness of connecting tube 30, and the hardness of connecting tube 30 is higher than the hardness of pipe 50, therefore is located the part of outer circumferential side
With higher hardness, so as to improve the durability for being directed to internal pressure and rising.Specifically, H12 is preferably by Rockwell hardness 80
Above and less than 110 material forming, H30 preferably by Shore D hardness more than 40 and less than 55 material forming, H50 preferably by
Shore D hardness more than 30 and less than 45 material forming, H80 is preferably by Shore D hardness more than 30 and less than 45 material forming.
Hereinafter, reference picture 4 (a), Fig. 4 (b), Fig. 4 (c) illustrate the summary of the assembling procedure of medical apparatus 1.Fig. 4 (a), Fig. 4
(b), Fig. 4 (c) is the figure of the summary for the assembling procedure for representing medical apparatus 1 successively.First, solvent is made to be attached to the front end of pipe 50
The outer surface in portion.Next, as shown in Fig. 4 (a), pipe 50 is inserted in the cardinal extremity opening 42 of connecting tube 30.Specifically, will manage
50 are inserted into untill the openend 51 of pipe 50 abuts with the inner side cascaded surface 43 of connecting tube 30.Then, using being attached to pipe 50
The solvent of the outer surface of leading section makes connecting tube 30 and the deposition of pipe 50 and integrated.
Next, solvent is set to be attached to the outer surface of the connecting tube 30 integrated with pipe 50.Then, as shown in Fig. 4 (b),
The leading section 31 of the connecting tube 30 integrated with pipe 50 is inserted in the advance first end oral area 12 for being fixed with strengthening part 80
Opening 18.Specifically, the leading section 31 of connecting tube 30 is inserted into the outside cascaded surface 35 and first end oral area of connecting tube 30
Untill 12 openend 21 abuts, so as to complete the assembling of medical apparatus 1 as shown in Fig. 4 (c).Now, it is arranged at connecting tube 30
Leading section 31 collar flange 32 circumferentially the inwall linear contact lay of B and first end oral area 12 and close.In addition, utilize attachment
Solvent in the outer surface of connecting tube 30 makes connecting tube 30 and the deposition of strengthening part 80 and integrated.
As described above, in the process integrated with connecting tube 30 of pipe 50 is made, only by the way that pipe 50 is inserted into openend 51
Untill being abutted with inner side cascaded surface 43, it becomes possible to it is integrated in position, therefore productivity ratio can be improved.In addition, make
In the process integrated with first end oral area 12 of connecting tube 30, due to only by by connecting tube 30 be inserted into outside cascaded surface 35 with
Untill openend 21 abuts, it becomes possible to it is integrated in position, therefore productivity ratio can be improved.
In addition, in the process integrated with first end oral area 12 of connecting tube 30 is made, the leading section of connecting tube 30 is arranged at
31 collar flange 32, on one side circumferentially the inwall linear contact lay of B and first end oral area 12, while being inserted in first end oral area 12
Inside.Therefore contacted, while compared with the structure of insertion with variation described later (reference picture 5 (a), Fig. 5 (b)) one side face like that
Compared with contact resistance being suppressed to relatively low, therefore easily be manufactured.In addition, even if outside cascaded surface 35 may not be inserted into
Also sealing can be formed untill being abutted with openend 21, therefore can also make manufacture stay in grade.
Here, the variation of connecting tube 30 is illustrated.Fig. 5 (a), Fig. 5 (b) are the variations as connecting tube 30
Side view under the nature of the leading section 31 ' of connecting tube 30 ' and the leading section 31 " of connecting tube 30 ", Fig. 5 (a) represent to connect
The leading section 31 ' of adapter 30 ', Fig. 5 (b) represent the leading section 31 " of connecting tube 30 ".In addition, connecting tube 30 ' and connecting tube 30 "
The structure of respective base end part is identical with the structure of the base end part 41 of above-mentioned connecting tube 30, therefore omits the description.
As shown in Fig. 5 (a), in its natural state, the leading section 31 ' of connecting tube 30 ' has maximum outside diameter portion 33 ' and external diameter
Towards the front in maximum outside diameter portion 33 ' and the diminishing reducing diameter part 34 ' of base end side.Specifically, reducing diameter part 34 ' is in side
When face is observed (reference picture 5 (a)), in the front in maximum outside diameter portion 33 ' and base end side, external diameter is with substantially linear undergauge.
In addition, in its natural state, the external diameter R1 ' in maximum outside diameter portion 33 ' is more than the internal diameter of first end oral area 12.That is, leading section 31 '
Include the predetermined region in maximum outside diameter portion 33 ', compressed in a manner of making reduced diameter and be inserted into diameter than the predetermined region
In the state of in small first end oral area 12, be intended to extend to expanding direction by recuperability, thus circumferential whole region with
The inwall of first end oral area 12 is seamlessly close to and forms sealing.
So, it is also same with connecting tube 30 even with the connecting tube 30 ' of the variation as connecting tube 30, even if stream
Road 15, the internal pressure of stream 39 rise, and the fluid that can also suppress internal is spilt.But make connecting tube 30 ' and first end oral area
In the processes of 12 integrations, predetermined region including maximum outside diameter portion 33 ' circumferentially B and first end oral area 12 inwall
The contact of carry out face, therefore consider from contact resistance is suppressed into relatively low this point, preferably using the connecting tube 30 of linear contact lay.
As shown in Fig. 5 (b), in its natural state, the leading section 31 " of connecting tube 30 " is continuous with outside cascaded surface 35
Front has maximum outside diameter portion 33 ", when being observed in side (reference picture 5 (b)), there is external diameter to show greatly linearly in front
The reducing diameter part 34 " of undergauge.In addition, in its natural state, the external diameter R1 " in maximum outside diameter portion 33 " is more than the interior of first end oral area 12
Footpath.That is, the predetermined region for including maximum outside diameter portion 33 " of leading section 31 ", compressed and be inserted into a manner of making reduced diameter
In the state of in the diameter first end oral area 12 smaller than the predetermined region, it is intended to extend to expanding direction by recuperability, therefore
Circumferential whole region is seamlessly close to the inwall of first end oral area 12 and forms sealing.
So, it is also same with connecting tube 30 even with the connecting tube 30 " of the variation as connecting tube 30, even if stream
Road 15, the internal pressure of stream 39 rise, and the fluid that can also suppress internal is spilt.But make connecting tube 30 " and first end oral area
In the processes of 12 integrations, predetermined region including maximum outside diameter portion 33 " circumferentially B and first end oral area 12 inwall
The contact of carry out face, therefore consider from contact resistance is suppressed into relatively low this point, preferably using the connecting tube 30 of linear contact lay.Separately
Outside, in the process integrated with first end oral area 12 of connecting tube 30 " is made, if connecting tube 30 " is not inserted into outside cascaded surface
Untill 35 abut with openend 21, then sealing can not be fully formed, therefore from can examine manufacture stay in grade this point
Consider, even if untill preferably being abutted using cascaded surface 35 on the outside of being not inserted into openend 21, also can fully form sealing
Connecting tube 30 or connecting tube 30 '.
(second embodiment)
Fig. 6 is the transfusion for the medical apparatus 1 for possessing first embodiment for being denoted as second embodiment of the present invention
The figure of component 110.Infusion set 110 forms from infusion bag (not shown) in figure 6 and is connected to equally (not shown) in figure 6 stay
Put the transfusion circuit of pin.Specifically, infusion set 110 possesses：Multiple (the first woven hose 111a and second of woven hose 111
Woven hose 111b), can visually confirm from infusion bag supply decoction flow drop cylinder 112, adjustment woven hose 111 in
The discharge filter 114 for the air that the fixture 113 of medicinal liquid flow, discharge (or supply) are present in transfusion circuit and will be defeated
The pipe clamp 115 of the occlusion of liquid pipe 111.
In the present embodiment, medical apparatus 1 is arranged between fixture 113 and discharge filter 114.Medical apparatus 1 will
It is connected as circulating between the first woven hose 111a and discharge filter 114 of the downstream side extension of drop cylinder 112, so as to
Form a part for the stream of the main line of transfusion circuit.More specifically, in the present embodiment, the second of medical apparatus 1
Port part 13 is connected with the first woven hose 111a.In addition, the pipe 50 of medical apparatus 1 is connected with discharge filter 114.
In addition, the 3rd port part 14 in medical apparatus 1 can for example connect syringe, it can use the syringe will be with
The decoctions different from the decoction of infusion bag supply are supplied to main line.
According to the infusion set 110 of present embodiment, such as even if the fluid such as decoction from being connected with the 3rd port part 14
Syringe to main line it is surging supply and internal pressure is increased, the fluid that can also suppress internal is spilt from medical apparatus 1.Especially
It is, according to medical apparatus 1, easily to rise even in internal pressure and connect the medical pipe for the thin footpath that internal diameter is 0.2mm~1.5mm
In the case of, the fluid that can be also reliably suppressed inside is spilt.
The present invention is not limited to the structure of above-mentioned embodiment, is not departing from described in the scope of claims
In the range of appearance, it can be realized by various structures.
For example, in the respective embodiments described above, with including the company referred to as so-called T-shaped port with three port parts
The structure of device is connect to represent medical apparatus 1, but is not limited to this, such as can also be to include other connectors such as three-way cock
Structure.In addition, in the respective embodiments described above, the first pipe is set to be the first end oral area 12 of retainer 10, but be not limited to
This, or there is the tubular part with the identical structure of first end oral area 12.
The present invention relates to medical apparatus and infusion set.
Claims (11)
1. a kind of medical apparatus, it is characterised in that possess：
First pipe；
Second pipe, it has：The leading section of tubulose, the leading section are more than the interior of first pipe with external diameter in its natural state
The sealing in footpath, and it is inserted in first pipe；The base end part of tubulose, it is connected with the leading section；
3rd pipe, it is inserted in the base end part from the cardinal extremity opening of second pipe.
2. medical apparatus according to claim 1, it is characterised in that
Second pipe is softer than the described first pipe.
3. medical apparatus according to claim 2, it is characterised in that
Second pipe is harder than the described 3rd pipe.
4. the medical apparatus according to any one of claims 1 to 3, it is characterised in that
Be also equipped with strengthening part, the strengthening part from outside at least a portion for covering first pipe and second pipe to
A few part.
5. medical apparatus according to claim 4, it is characterised in that
At least a portion of strengthening part position overlapping with the 3rd pipe from outside covering second pipe.
6. the medical apparatus according to any one of Claims 1 to 5, it is characterised in that
The external diameter of the leading section of second pipe is described outer via outside cascaded surface and than the external diameter undergauge of the base end part
Offset tread is configured to the bearing surface abutted with the openend of first pipe.
7. the medical apparatus according to any one of claim 1~6, it is characterised in that
The inwall of the base end part of second pipe have make the inner side cascaded surface that internal diameter expands from front to base end side, institute
State the bearing surface that inner side cascaded surface is configured to abut with the openend of the 3rd pipe.
8. medical apparatus according to claim 7, it is characterised in that
The internal diameter of 3rd pipe and the internal diameter substantially phase of the front from the inner side cascaded surface of second pipe
Together.
9. the medical apparatus according to any one of claim 1~8, it is characterised in that
In its natural state, the leading section of second pipe has：Maximum outside diameter portion and the outer radial maximum outside diameter portion
Front and the reducing diameter part of base end side undergauge,
The sealing comprises at least the maximum outside diameter portion.
10. the medical apparatus according to any one of claim 1~8, it is characterised in that
The sealing be along the arranged circumferentially collar flange of the leading section of second pipe,
In its natural state in the axial section observation along second pipe, the collar flange bending.
A kind of 11. infusion set, it is characterised in that
Possesses the medical apparatus described in any one of claim 1~10.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016190571A JP2018050964A (en) | 2016-09-29 | 2016-09-29 | Medical device and infusion set |
| JP2016-190571 | 2016-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107875506A true CN107875506A (en) | 2018-04-06 |
Family
ID=61780845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710880384.4A Pending CN107875506A (en) | 2016-09-29 | 2017-09-26 | Medical apparatus and infusion set |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018050964A (en) |
| CN (1) | CN107875506A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112739408A (en) * | 2018-09-27 | 2021-04-30 | 株式会社Jms | Connector with a locking member |
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| US20040073192A1 (en) * | 2002-10-15 | 2004-04-15 | Flament-Garcia Mary Jane | Intravenous fluid delivery set |
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| JP2009225998A (en) * | 2008-03-24 | 2009-10-08 | Sumitomo Bakelite Co Ltd | Connector |
| DE102008020820A1 (en) * | 2008-04-25 | 2009-10-29 | Fritz Giebler Gmbh | Safety valve for infusion tube, has upper part movable from one relative position to another relative position, where valve is insertable into recess of pump housing of infusion pump in former relative position |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2018050964A (en) | 2018-04-05 |
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Application publication date: 20180406 |