CN101045172B - Medical appliance - Google Patents
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- CN101045172B CN101045172B CN2006100715476A CN200610071547A CN101045172B CN 101045172 B CN101045172 B CN 101045172B CN 2006100715476 A CN2006100715476 A CN 2006100715476A CN 200610071547 A CN200610071547 A CN 200610071547A CN 101045172 B CN101045172 B CN 101045172B
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- pars contractilis
- supporting member
- medical instruments
- disc spring
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Abstract
A portable medical tool able to be compressed easily for collecting body fluid is composed of a bag-shaped liquid container, and a volume changing unit in said liquid container and with multiple retractable parts. At least one of said retractable part consists of elastomer and its supporting members at its both ends.
Description
Technical field
The present invention relates to a kind of medical instruments.
Background technology
Adopt body fluid to attract liquid trap to be known by people by attracting to discharge body fluid from human body wound chamber all the time.When adopting body fluid to attract liquid trap, the end in order to discharge body fluid with flexible pipe is inserted into the wound intracavity, the other end of flexible pipe is connected to attract on the liquid trap.And,, body fluid produces negative pressure in attracting liquid trap, and thus, the body fluid of creating intracavity is gathered, is stored in the attraction liquid trap.
Attract liquid trap as this body fluid; Disclose such structure: the container to built-in retractile elastic component (spring or rubber etc.) compresses (shrinking internal capacity in advance thereby shrink elastic component) in advance; Utilize the restoring force of this elastic component; In container, produce negative pressure, thereby body fluid is attracted liquid collecting (for example with reference to patent documentation 1).
This body fluid attracts liquid trap owing to begin to attract from the state that has compressed container self, so attracting when initial very for a short time, even it is can volume not excessive to be installed in the patient yet, has superior this advantage of Portability on one's body.In addition, the former mechanism has the locking device of keeping the state that container is flattened, therefore, also helps to reduce the cost of transportation, keeping.
Because it is the structure that keeps 1 spring with 1 group of locking mechanism that this body fluid attracts liquid trap, so body fluid attracts liquid trap big more, compression container just needs bigger power more.
Patent documentation 1:JP spy opens clear 57-81346 communique.
Summary of the invention
The object of the present invention is to provide the medical instruments that a kind of Portability is superior and tank capacity compresses.
The present invention through following (1)～(7) record reaches such purpose.
(1) a kind of medical instruments are used for body fluid is carried out liquid collecting, it is characterized in that having: the liquid containing portion of bag shape; Be configured in the aforesaid liquid accommodation section inside, change the volumetrical variable volume device of this liquid containing portion, above-mentioned variable volume device has a plurality of pars contractilis; Above-mentioned each pars contractilis is made up of elastomer and the supporting member that is arranged on above-mentioned elastomeric both ends; Be connected or integrated at the above-mentioned supporting member of the distolateral existence separately of each adjacent above-mentioned pars contractilis; At the above-mentioned supporting member of another distolateral existence separately of adjacent above-mentioned each pars contractilis, can isolating mode being connected, perhaps with connecting elements and each supporting member each other the mode of bending be connected through above-mentioned connecting elements; This each pars contractilis is self contained function separately.
(2) like above-mentioned (1) described medical instruments, above-mentioned elastomer is made up of disc spring.
(3) like above-mentioned (2) described medical instruments, the external diameter of above-mentioned disc spring distolaterally distolaterally reduces to another from one gradually.
(4) like each described medical instruments in above-mentioned (1) to (6), in above-mentioned pars contractilis, the condition of at least two pars contractilis is different.
(5) like each described medical instruments in above-mentioned (1) to (3), above-mentioned variable volume device have the volume contraction that keeps liquid containing portion the holding device of state.
According to the present invention, can access the medical instruments that Portability is superior and bag compresses easily.
In addition, from one distolateral distolateral when reducing gradually, can make the volume-variation of liquid containing portion big especially, thus, can attract more body fluid to another at the external diameter of above-mentioned disc spring.
In addition, when above-mentioned pars contractilis includes different at least two pars contractilis of the condition relevant with this pars contractilis, can make the fine setting of the amount of the body fluid that is attracted become easy especially.
In addition, the variable volume device have the volume contraction that keeps liquid containing portion the holding device of state the time, can make these medical instruments under the state that does not have to use, be miniaturization.
Description of drawings
Fig. 1 is the front view of an example of expression medical instruments of the present invention.
Fig. 2 A～Fig. 2 C is the side view of an example of expression control device.
Fig. 3 is the vertical view of an example of expression control device.
Fig. 4 A, Fig. 4 B are the cutaway views of the A-A line among Fig. 3.
Fig. 5 A～Fig. 5 C is the side view of another example of expression control device.
The specific embodiment
Below, to medical instruments of the present invention, preferred embodiment at length explain based on shown in the drawings.
Fig. 1 is the front view of an example of expression medical instruments of the present invention.Fig. 2 A～Fig. 2 C is the side view of an example of expression control device.Fig. 3 be the expression control device an example attach view.Fig. 4 A, Fig. 4 B are the cutaway views of the A-A line among Fig. 3.Fig. 5 A～Fig. 5 C is the side view of another example of expression control device.
As shown in Figure 1, the inside that medical instruments 100 have liquid containing portion 1 and are configured in liquid containing portion 1 changes the volumetrical variable volume device 2 of liquid containing portion 1.
Be provided with the connecting elements 111 that is connected with the flexible pipe that is used to attract body fluid (not shown) at suction inlet 11.
Connecting elements 111 liquid thickly are disposed at suction inlet 11.
Connecting elements 111 is made up of the jut with the inner chamber that can insert entire body liquid 112, the cylindrical portion 113 that forms in the lower end side (downside in reference to Fig. 1) of jut 112.
Internal configurations at connecting elements 111 has check valve, and this check valve allows body fluid to flow into the direction of the inside of liquid containing portion 1, limits its rightabout.
Connecting elements 111 disposes like this: the base end side of cylindrical portion 113 (with reference to downside among Fig. 1) is outstanding to the inside of liquid containing portion 1, and the front of protuberance 112 (with reference to upside among Fig. 1) is outstanding to the outside of liquid containing portion 1.
Constitute relative outlet 12 and cylinder element 121 that liquid thickly disposes in outlet 12.
Also be provided with cap 122 in addition, this cap 122 can be from the peristome of an end seal cylinder element 121 of outlet 12.
As the material of this liquid containing of formation portion 1, for example can enumerate out thermoplastic resins such as polyethylene, polypropylene, polyurethane, soft PVC.Among these, preferred soft PVC.Thus, can improve the assembling processability of the joint etc. of connecting elements 111 and cylinder element 121.
Further, the also superior transparent resin of preferably clear property in these resins.Thus, can improve wherein visuality.On the other hand, preferably through mixing pigment in these resins, or be printed on the surface of liquid containing portion 1, thereby opacification partly.Thus, the liquid that can not that is stored in the liquid containing portion 1 is seen by the patient easily.
Shown in Fig. 2 A～Fig. 2 C, variable volume device 2 has two pars contractilis 3,4.
First pars contractilis 3 is made up of first disc spring 5 and first supporting member 6 that is positioned at its two ends, and first disc spring 5 is fixed together with first supporting member 6 that is positioned at its two ends.
Second pars contractilis 4 is made up of second disc spring 7 and second supporting member 8 that is positioned at its two ends, and second disc spring 7 is fixed together with second supporting member 8 that is positioned at its two ends.
First supporting member 6 and second supporting member 8 are respectively plate bodys.
The downside of first supporting member 6 and second supporting member 8 (downside among Fig. 2 A～Fig. 2 C) becomes one.On the other hand, the upside of first supporting member 6 and second supporting member 8 (upside among Fig. 2 A～Fig. 2 C) can separate at central part 9.Thus, each pars contractilis 3,4 self contained function separately.
First pars contractilis 3 and second pars contractilis 4, its two ends are connected by flexible connecting portion 10.
But connecting portion 10 bendings, its leading section 101 are V word shape towards the outside of variable volume device 2 (left and right sides among Fig. 2 A～Fig. 2 C) outstanding.
First pars contractilis 3 links together through the connecting elements 31 than first supporting member, 6 thin thickness with connecting portion 10.Thus, bending easily.
Second pars contractilis 4 links together through the connecting elements 41 than second supporting member, 8 thin thickness with connecting portion 10.Thus, bending easily.
On first supporting member 6, be provided with outstanding to the inside jut 61 with mode across first disc spring 5.
The jut 61 of the downside of first supporting member 6 (downside among Fig. 2 A～Fig. 2 C) has with the roughly the same interval of external diameter of the downside of first disc spring 5 and disposes.
The jut 61 of the upside of first supporting member 6 (upside among Fig. 2 A～Fig. 2 C) is arranged on first pars contractilis 3 when flexible on up and down the jut 61 contacted positions.Thus, can fix the position of the first flexible disc spring 5.
In addition, this jut 61 also can be arranged on the position that does not contact up and down and stagger.Particularly, also can be the jut 61 of the upside (upside among Fig. 2 A～Fig. 2 C) of first supporting member 6, the mode with the position of first disc spring 5 that can fixed upper has with the roughly the same interval of the internal diameter of upside and disposes.
On second supporting member 8, be provided with outstanding to the inside jut 81 with mode across second disc spring 7.
The jut 81 of the downside of second supporting member 8 (downside among Fig. 2 A～Fig. 2 C) has with the roughly the same interval of external diameter of the downside of second disc spring 7 and disposes.
The jut 81 of the upside of second supporting member 8 (upside among Fig. 2 A～Fig. 2 C) is arranged on second pars contractilis 4 when flexible on up and down the jut 81 contacted positions.Thus, can fix the position of the second flexible disc spring 7.
In addition, this jut 81 also can be arranged on the position that does not contact up and down and stagger.Particularly, also can be the jut 81 of the upside (upside among Fig. 2 A～Fig. 2 C) of second supporting member 8, the mode with the position of second disc spring 7 that can fixed upper has with the roughly the same interval of the internal diameter of upside and disposes.
The external diameter of first disc spring 5 and second disc spring 7 reduces to upside (upside among Fig. 2 A～Fig. 2 C) from downside (downside Fig. 2 A～Fig. 2 C) gradually.Thus, because when each disc spring 5,7 shrank, the disc spring of upside partly entered into the inboard of the disc spring part of downside, so can reduce each supporting member 6, the distance between 8.That is, the volumetrical variation of liquid containing portion 1 can be increased, therefore more body fluid can be attracted.
Shown in Fig. 3 and Fig. 4 A, Fig. 4 B, variable volume device 2 have keep volume contraction the holding device of state.That is, on first supporting member 6 of downside (downside among Fig. 4 A, Fig. 4 B), be provided with claw 62 with mode across first disc spring 5.Through this holding device, can under the state that does not use medical instruments 100, make its miniaturization, Portability is superior especially.
In addition, be provided with claw 82 with mode on second supporting member 8 in downside (downside among Fig. 4 A, Fig. 4 B) across second disc spring 7.
Prolong the length that portion 621 and limit especially, the height when still preferably shrinking with first disc spring 5 is identical, particularly, and preferred 0.5～10mm, preferred especially 1～5mm.
In addition, claw 82 is prolonged portion (not shown) and portion to outstanding pawl 822 formations of vertical direction from prolonging to what upside extended by second supporting member 8 from downside too.
Pawl 822 engages with described hole 83, back.
Prolong the length that portion and do not limit especially, the height when still preferably shrinking with second disc spring 7 is identical, particularly, and preferred 0.5～10mm, preferred especially 1～5mm.
On the other hand, at the upside (upside among Fig. 4 A, Fig. 4 B) of first supporting member 6, the hole 63 that is used to engage claw 62 is formed at the position that when first pars contractilis 3 shrinks, can insert claw 62.Thus, pawl 622 can engage with hole 63, and first pars contractilis 3 can keep under the state that shrinks.
At the upside (upside among Fig. 4 A, Fig. 4 B) of second supporting member 8, the hole 83 that is used to engage claw 82 is formed at the position that when second pars contractilis 4 shrinks, can insert claw 82.Thus, pawl 822 can engage with hole 83, and second pars contractilis 4 can be fixed (with reference to Fig. 4 B) under the state that shrinks.
Near the central authorities of first supporting member 6 of downside and second supporting member 8, be provided with press section 21.Press section 21 elastically deformables are out of shape through pushing, thereby are inserted in the variable volume device 2.Therefore,, portion, utilize strain, can remove the engaging of each pawl 622,822 and each hole portion 63,83 thereby push respectively to prolong through press section 12 is pushed.
When Fig. 2 A～Fig. 2 C has represented that each pars contractilis 3,4 of variable volume device 2 is upheld and the state in when contraction.In Fig. 2 A, represent the state that first disc spring 5 and second disc spring 7 are all upheld.In Fig. 2 B, represent only to make the state of pars contractilis 3 contractions of a side from the state of Fig. 2 A, particularly, represent the state that first disc spring 5 shrinks.In Fig. 2 C, the state that the pars contractilis 3,4 of expression both sides shrinks, particularly, first disc spring 5 and second disc spring, 7 boths shrink.
That is, through only pushing first pars contractilis 3, and can become the state (Fig. 2 B) that only shrinks first disc spring 5.And, through pushing second pars contractilis 4, and can become the state (Fig. 2 C) that second disc spring 7 also shrinks.That is, can make each disc spring 5,7 (each pars contractilis 3,4) self contained function.
Like this, through push first pars contractilis 3 and second pars contractilis 4 both, thereby can become maximum volume, through only pushing first pars contractilis 3 or second pars contractilis 4 any one, can become the half the volume of heap(ed) capacity.
And then, under the state of the pars contractilis of only having pushed a side, while push through the pressing quantity of adjusting the opposite side pars contractilis, thus can be easy to traffic attraction is finely tuned.
This variable volume device 2 can form each structural element such as first supporting member 6, second supporting member 8, connecting portion 10 respectively, but preferably one-body molded.
As the material that constitutes this variable volume device 21; Enumerate out the for example polyalkenes resin of polyethylene, polypropylene etc.; The polyester resin of polyamide, polrvinyl chloride, polyurethane, polyoxymethylenes, acrylonitrile-butadiene-styrene copolymer, PETG, polybutylene terephthalate (PBT) etc., and thermoplastic resin such as Merlon.
In addition; When each structural element such as first supporting member 6, second supporting member 8, connecting portion 10 is one-body molded, the material that preferred especially extension at break degree is big, be polyethylene, polypropylene, polyamide, polyurethane, PETG etc.Thus, for the moderate finite deformation of coupling part, can be difficult with fracture.
Then, the effect to medical instruments 100 describes.
[1] at first, as shown in Figure 1, make under the flexible state of variable volume device 2, on the jut 112 of the connecting elements 111 of medical instruments 100, connect the flexible pipe that not shown body fluid is discharged usefulness.
[2] then,, close outlet 12 with the peristome of cap 124 sealed cylindrical members 121.
[3] then,, remove the engaging in each pawl 622,822 and each hole 63,83 through press section 21 is pushed.Thus, utilize the restoring force of each disc spring 5,7, can produce negative pressure in the inside of liquid containing portion 1.
[4] wait for, and in liquid containing portion 1, attract body fluid and store.
[5] if the internal storage of liquid containing portion 1 body fluid of ormal weight, then open outlet 12, discharge body fluid from outlet 12.
When [6] attracting again as required, at first push first pars contractilis 3, only compress first disc spring 5, and become the state that makes pawl 622 and hole 63 engagings.
[7] then, push second pars contractilis 4, compress second disc spring 7, become the state that makes pawl 822 and hole 83 engagings.
[8] then,, close outlet 12 with the peristome of cap 124 sealed cylindrical members 121.
[9] then,, remove the engaging in each pawl 622,822 and each hole 63,83 through press section 21 is pushed.Thus, utilize 5,7 restoring force of each disc spring, can produce negative pressure in the inside of liquid containing portion 1.
[10] wait for, and in liquid containing portion 1, attract body fluid and storage once more.
[11] if the internal storage of liquid containing portion 1 body fluid of ormal weight, then open outlet 12, discharge body fluid from outlet 12.
According to this method, can body fluid be attracted in the liquid containing portion 1, store and discharge.
In addition, when attracting again,, for example can be easy to only make first pars contractilis 3 flexible, and attract half the usually volume according to the amount that attracts.
In addition, the amount of pushing through further adjustment first pars contractilis 3 is also finely tuned the amount of the body fluid that attracted easily.
Describe in the face of other embodiments down.To the for example medical instruments 100 shown in Fig. 5 A～Fig. 5 C, being that the center describes with medical instruments 100 different points shown in Figure 1.
Shown in Fig. 5 A～Fig. 5 C, first supporting member 6 of upside and second supporting member 8 of upside link together via connecting elements 91.
But connecting elements 91, be connected with connecting portion 911 bendings ground respectively with second supporting member 8 of first supporting member 6 of upside and upside.Thus, but each pars contractilis 3,4 self contained function.
More than, based on suitable embodiment medical instruments of the present invention have been described, but the present invention is not limited to this, each structure can be replaced as the arbitrary structures that can bring into play said function.
For example, in this embodiment, be illustrated, but also can have 3,4 etc. 3 or its above pars contractilis to situation with two pars contractilis.
In addition, though disclose the pars contractilis with the same terms, be not limited to this, above-mentioned pars contractilis also can include condition different at least two pars contractilis relevant with this pars contractilis.For example, also can use the different pars contractilis of area of each supporting member that constitutes each pars contractilis.For example enumerate out the spring constant condition of different etc. of area condition of different, first disc spring 5 and second disc spring 7 of first supporting member 6 and second supporting member 8.
In order to attract to discharge body fluid from human body wound chamber, medical instruments of the present invention can be used as body fluid attraction liquid trap and are suitable for.
Claims (5)
1. medical instruments are used for body fluid is carried out liquid collecting, it is characterized in that having:
The liquid containing portion of bag shape;
Be configured in the aforesaid liquid accommodation section inside, change the volumetrical variable volume device of this liquid containing portion,
Above-mentioned variable volume device has a plurality of pars contractilis;
Above-mentioned each pars contractilis is made up of elastomer and the supporting member that is arranged on above-mentioned elastomeric both ends;
Be connected or integrated at the above-mentioned supporting member of the distolateral existence separately of each adjacent above-mentioned pars contractilis;
At the above-mentioned supporting member of another distolateral existence separately of adjacent above-mentioned each pars contractilis, can isolating mode being connected, perhaps with connecting elements and each supporting member each other the mode of bending be connected through above-mentioned connecting elements;
Each above-mentioned pars contractilis is self contained function separately.
2. medical instruments as claimed in claim 1 is characterized in that above-mentioned elastomer is made up of disc spring respectively.
3. medical instruments as claimed in claim 2 is characterized in that, the external diameter of above-mentioned disc spring distolaterally distolaterally reduces to another from one gradually.
4. like each described medical instruments in the claim 1 to 3, it is characterized in that in above-mentioned pars contractilis, the condition of at least two pars contractilis is different.
5. like each described medical instruments in the claim 1 to 3, it is characterized in that, above-mentioned variable volume device have the volume contraction that keeps the aforesaid liquid accommodation section the holding device of state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100715476A CN101045172B (en) | 2006-03-28 | 2006-03-28 | Medical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100715476A CN101045172B (en) | 2006-03-28 | 2006-03-28 | Medical appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101045172A CN101045172A (en) | 2007-10-03 |
| CN101045172B true CN101045172B (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100715476A Active CN101045172B (en) | 2006-03-28 | 2006-03-28 | Medical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101045172B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429693A (en) * | 1980-09-16 | 1984-02-07 | Blake L W | Surgical fluid evacuator |
| US4981474A (en) * | 1988-02-16 | 1991-01-01 | Baxter Travenol Laboratories, Inc. | Body fluid drainage device |
| CN2319043Y (en) * | 1997-10-14 | 1999-05-19 | 刘心臣 | Disposable postive/negtive pressure continuous closed drainage appts. for thoracic cavity |
| CN1717256A (en) * | 2002-11-28 | 2006-01-04 | 住友电木株式会社 | Body fluid suction and collection unit |
-
2006
- 2006-03-28 CN CN2006100715476A patent/CN101045172B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4429693A (en) * | 1980-09-16 | 1984-02-07 | Blake L W | Surgical fluid evacuator |
| US4981474A (en) * | 1988-02-16 | 1991-01-01 | Baxter Travenol Laboratories, Inc. | Body fluid drainage device |
| CN2319043Y (en) * | 1997-10-14 | 1999-05-19 | 刘心臣 | Disposable postive/negtive pressure continuous closed drainage appts. for thoracic cavity |
| CN1717256A (en) * | 2002-11-28 | 2006-01-04 | 住友电木株式会社 | Body fluid suction and collection unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101045172A (en) | 2007-10-03 |
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