CN101642602A - Embedded chemotherapy pump with positive-pressure function - Google Patents
Embedded chemotherapy pump with positive-pressure function Download PDFInfo
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- CN101642602A CN101642602A CN200910066023A CN200910066023A CN101642602A CN 101642602 A CN101642602 A CN 101642602A CN 200910066023 A CN200910066023 A CN 200910066023A CN 200910066023 A CN200910066023 A CN 200910066023A CN 101642602 A CN101642602 A CN 101642602A
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Abstract
The invention relates to an embedded chemotherapy pump with positive-pressure function, comprising a chemotherapy pump body, a positive-pressure valve, a treatment pipeline and a connecting piece. Thechemotherapy pump body comprises a puncture pipe and a liner plate; the positive-pressure valve comprises an upper valve shell, a lower valve shell and a membrane which is an elastic pipe internallyprovided with an upper cavity and a lower cavity; the upper valve shell is an upwards concave shell and is matched with a liquid inlet pipe and a liquid outlet pipe which are also connected with bothends of the lower valve shell, i.e. a downwards concave shell; the membrane is a reversible concave elastomer, is arranged in a cavity formed by the upper valve shell and the lower valve shell and separates the cavity into an upper cavity and a lower cavity; and the upper cavity of the puncture pipe is communicated with the cavity formed by the upper valve shell and the membrane to form a closed positive-pressure adjusting cavity the liquid volume of which can be adjusted to realize the positive-pressure flushing and pipe-sealing requirements when transfusion is finished.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments that is used for infusion liquid, a kind of specifically embedded chemotherapy pump that is widely used in the treatment cancer with positive-pressure function.
Background technology
In treatment of cancer, especially for the chemotherapy of malignant tumor, widespread usage embedding type chemotherapy pump technology.Its distinguishing feature is exactly by subcutaneous implantation administration (puncture) window and connecting line, and chemotherapeutics is directly acted on the generation area of tumor, thereby improves the medicine blood concentration at pathological tissues place.Be the powerful measure for the treatment of cancer and malignant tumor now, but have advantages such as treatment targeting height, the little long term administration of side effect, patient comfort are good.But, because present chemotherapy pump deficiency in design makes it exist following defective and deficiency in clinical use:
One, medical personnel's labor intensity is big and operate loaded down with trivial details.Present chemotherapy pump in use all will carry out the heparin solution tube sealing, and, also to go the operation of pulling out pin while injecting, so just inevitably heparin solution to be injected in the subcutaneous tissue, this is to cause one of the inflammation of chemotherapy pump perienchyma, red and swollen reason.
Two, the security risk that has puncture window seepage.Because chemotherapy pump structural limitations now, in the process of drug treatment, puncture needle must vertically thrust the puncture window.Like this, puncture needle should not be fixed before this, had the chance the rock damage of window (will cause puncture); Be the bottom surface that needle tip is very easily touched chemotherapy pump then, make needle point barb or burr occur, thereby when pulling out pin, damage puncture window (easily causing seepage); Be exactly that the window that punctures all is the circle of about 1 centimetre of diameter in addition, and require acupuncture, concentrate like this and the acupuncture of high frequency time also is a reason that causes seepage easily in the centre (and the puncture window will bear the acupuncture of hundreds of nearly time in actual use).
Three, very easily pipeline blockage taking place and causes the treatment failure.Because chemotherapy pump reasons in structure now, storage medicine space below the puncture window communicates with the pipeline space, when patient the interim body movement of non-treatment (as take exercise, setting-up exercises to radio music) time, cause the unexpected mobile mutually of tube sealing medicinal liquid easily, cause blood to enter from the pipeline end, generation is stopped up and is caused treatment to be failed then.
In China,, also be a fresh thing after all though chemotherapy pump has had the clinical history of more than ten years.Scientific and technical personnel also are in a more preliminary stage to its structural research in the application, though all technical schemes (as: Chinese patent: ZL96235805.3, ZL91230089.2) of multitube road, anti-adverse current occurred.But, owing to fail fundamentally to solve the in use many practical problems of chemotherapy pump, and the technique with the apparatus of chemotherapy pump is also rested on the more primary level.That is to say: at present, domestic also not seeing can solve above-mentioned insufficient chemotherapy pump technology fully and be disclosed.
For this reason, a kind of embedded chemotherapy pump with positive-pressure function of the present invention can solve above-mentioned various deficiency.
Summary of the invention
The present invention is made up of the chemotherapy pump housing, positive valve, treatment pipeline and connector four parts.Wherein: the chemotherapy pump housing is made up of puncture tube and backing plate; Positive valve is made up of last valve casing, following valve casing and film; The treatment pipeline independently is made of the treatment pipe; Connector is made up of stay pipe, preceding band and back band.
The chemotherapy pump housing: puncture tube wherein is to have in the middle of one dividing plate, that inside is two chambeies up and down and an end has and the extraneous round and elastic that communicates the respectively nematophore that wears well.This puncture tube can allow puncture needle to be oblique and move towards the multiple spot position along axis and puncture.This puncture tube can allow puncture needle to thrust its epicoele and thrust its cavity of resorption by epicoele.Backing plate is medical stainless steel light sheet material (also can be other medical materials), its profile, big or small consistent with the following inwall of cavity of resorption in the puncture tube, and be placed in the cavity of resorption of puncture tube.Backing plate can stop piercing through of puncture needle effectively.
Positive valve: be the assembly that film is placed the housing of valve casing and following valve casing composition.Last valve casing is one to be the upwards housing of recess, and combined with the liquid in-out pipe.Following valve casing then is one to be the housing of downward recess, and two ends have been made up feed tube and drain pipe respectively, and wherein the axis of feed tube and drain pipe can have certain angle not necessarily point-blank.The liquid in-out pipe of last valve casing is consistent with the axis direction of the feed tube of following valve casing.Film is a reversible concave elastomer, places the cavity of being made up of last valve casing and following valve casing, the variation of can reversing therein of the depression direction of film, and be divided into mutual two cavitys up and down that completely cut off.The outer concave face of film can contact with the sunken inside face of last valve casing and following valve casing, and their size, shape consistent (its shape can be circular, ellipse or other shapes).When the depression direction of the depression direction of film and following valve casing is consistent, can descend the drain pipe sealing of valve casing.
The treatment pipeline: treatment Guan Weiyi wherein can satisfy the medical grade macromolecule flexible pipe of biological requirement, and closely is connected with the drain pipe of following valve casing with the back band by stay pipe.
Connector: be stay pipe, preceding band and back band.Preceding band is used for the chemotherapy pump housing is connected with the airtight of positive valve.Back band is used for positive valve and is connected with treatment the airtight of pipeline.Stay pipe is through in the treatment pipe and is used for strengthening its rigidity in connection.
A kind of embedded chemotherapy pump of the present invention with positive-pressure function, wherein the size of two cavity outlets on the puncture tube, shape are consistent with external diameter size, the shape of the feed tube of the liquid in-out pipe of last valve casing and following valve casing respectively, and their closely connect by preceding band.Upper cavity on the puncture tube is communicated with the cavity of being made up of last valve casing, film, and forms the malleation adjusting cavity of a sealing.
In clinical, earlier by puncture needle with the air eliminating in each cavity in will the be of the present invention a kind of embedded chemotherapy pump with positive-pressure function of normal saline, embedding finish and during begin treatment of waiting to perform the operation, thrust the epicoele of puncture tube with puncture needle, suction normal saline wherein, its pressure is reduced, force film to rise to fovea superior.At this moment, be opened by the drain pipe of the following valve casing of membrane closure, the cavity of resorption that forms by puncture tube leads to the infusion channel for the treatment of pipe.Afterwards, push away puncture needle again, the epicoele that makes pin see through puncture tube thrusts in the cavity of resorption of puncture tube, begins to carry out infusion treatment.After finishing, carry out normal saline flushing.Afterwards, the withdraw of the needle is injected normal saline to the epicoele of puncture tube, and pressure is wherein raise, and forces the depression of film to be directed downwards and reverses.At this moment, will flow to the treatment pipe under the effect at film at the liquid between film and the following valve casing, subsequently, film contacts with the concave face of following valve casing, and will descend the drain pipe sealing of valve casing.Positive pressure wash and tube sealing like this, have just been finished.Pull out puncture needle again, this infusion treatment finishes.
This shows that a kind of embedded chemotherapy pump with positive-pressure function of the present invention has in clinical practice that structure is simple, effect is clear and definite, simple to operate, characteristics that need not heparin in sealing.
Description of drawings
Fig. 1 is a kind of structural representation of embedded chemotherapy pump when non-transfusion with positive-pressure function of the present invention.
Fig. 2 is a kind of structural representation of embedded chemotherapy pump when transfusion with positive-pressure function of the present invention.
Specific embodiment
As shown in Figure 1, the present invention is made up of the chemotherapy pump housing, positive valve, treatment pipeline and connector four parts.Wherein: the chemotherapy pump housing is made up of puncture tube 1 and backing plate 2; Positive valve is made up of last valve casing 3, following valve casing 4 and film 5; The treatment pipeline independently is made of treatment pipe 7; Connector is made up of stay pipe 6, preceding band 8A and back band 8B.
The chemotherapy pump housing: puncture tube 1 wherein be have in the middle of one dividing plate, inside be epicoele 1A and cavity of resorption 1B's and an end have and the extraneous round and elastic that communicates the respectively nematophore that wears well.This puncture tube 1 can allow puncture needle to be oblique and move towards the multiple spot position along the axis of puncture tube 1 and puncture.This puncture tube 1 can allow puncture needle to thrust its epicoele 1A neutralization to thrust among its cavity of resorption 1B by epicoele 1A.Backing plate 2 is medical stainless steel light sheet material (also can be other medical materials), its profile, big or small consistent with the following inwall of cavity of resorption 1B in the puncture tube 1, and be placed among the cavity of resorption 1B of puncture tube 1.Backing plate 2 can stop piercing through of puncture needle effectively.
Positive valve: be the assembly that film 5 is placed the housing of valve casing 3 and following valve casing 4 compositions.Last valve casing 3 is one to be the upwards housing of recess, and combined with liquid in-out pipe 3A.4 of following valve casings are one to be the housing of downward recess, and two ends have been made up feed tube 4A and drain pipe 4B respectively, and wherein the axis of feed tube 4A and drain pipe 4B can have certain angle not necessarily point-blank.The axis direction of the liquid in-out pipe 3A of last valve casing 3 and the feed tube 4A of following valve casing 4 is consistent.Film 5 is a reversible concave elastomer, places the cavity of being made up of last valve casing 3 and following valve casing 4, the variation of can reversing therein of the depression direction of film 5, and be divided into mutual two cavitys up and down that completely cut off.The outer concave face of film 5 can contact with the sunken inside face of last valve casing 3 and following valve casing 4, and their size, shape consistent (its shape can be circular, ellipse or other shapes).When the depression direction of the depression direction of film 5 and following valve casing is consistent, can descend the drain pipe 4B sealing of valve casing 4.
The treatment pipeline: treatment pipe 7 wherein is one can satisfy the medical grade macromolecule flexible pipe of biological requirement, and by stay pipe 6 and afterwards band 8B closely be connected with the drain pipe 4B of following valve casing 4.
Connector: be stay pipe 6, preceding band 8A and back band 8B.Preceding band 8A is used for the chemotherapy pump housing and is connected with the airtight of positive valve.Back band 8B is used for positive valve and is connected with treatment the airtight of pipeline.Stay pipe 6 is through in the treatment pipe 7 and is used for strengthening its rigidity in connection.
In clinical, it is subcutaneous by operation the present invention to be embedded in patient.When not infusing, the depression of film 5 is directed downwards, and its lower surface closely contacts with the sunken inside face of following valve casing 4, and will descend the drain pipe 4B sealing of valve casing 4.At this moment, the epicoele 1A of puncture tube 1 regulates cavity with the malleation that the cavity of being made up of last valve casing 3 and film 5 is formed a sealing jointly, wherein is full of normal saline.Film 5 leads to the cavity of resorption 1B of puncture tube 1 carrier frequency channel break of treatment pipe 7.Be full of normal saline among the cavity of resorption 1B of puncture tube 1 and in the treatment pipe 7.
Fig. 2 is the structural representation of the present invention when transfusion.When beginning to infuse, thrust with puncture needle among the epicoele 1A of puncture tube 1, wherein normal saline of suction reduces its pressure, forces film 5 to rise to fovea superior.At this moment, the drain pipe 4B of the following valve casing 4 of tunicle 5 sealings is opened, and forms the infusion channel of being led to treatment pipe 7 by the cavity of resorption 1B on the puncture tube 1.Afterwards, push away puncture needle again, the epicoele 1A that makes pin see through puncture tube 1 thrusts among the cavity of resorption 1B of puncture tube 1, begins to carry out infusion treatment.After finishing, carry out normal saline flushing.Afterwards, the withdraw of the needle is injected normal saline to the epicoele 1A of puncture tube 1, and pressure is wherein raise, and forces the depression of film 5 to be directed downwards and reverses.At this moment, the liquid between film 5 and following valve casing 4 will flow to treatment pipe 7 under the effect of film 5, and subsequently, film 5 contacts with the concave face of following valve casing 4, and will descend the drain pipe 4B sealing of valve casing 4.Positive pressure wash and tube sealing like this, have just been finished.Pull out puncture needle again, this infusion treatment finishes.
Claims (9)
1, a kind of embedded chemotherapy pump with positive-pressure function is made up of the chemotherapy pump housing, positive valve, treatment pipeline and connector four parts.Wherein: the chemotherapy pump housing is made up of puncture tube 1 and backing plate 2, and backing plate 2 is placed among the cavity of resorption 1B of puncture tube 1; Positive valve is made up of last valve casing 3, following valve casing 4 and film 5, the housing that film 5 places valve casing 3 and following valve casing 4 to form; The treatment pipeline independently is made of treatment pipe 7; Connector is made up of stay pipe 6, preceding band 8A and back band 8B.
2, according to claim 1, puncture tube 1 be have in the middle of one dividing plate, inside be epicoele 1A and cavity of resorption 1B's and an end have and the extraneous round and elastic that communicates the respectively nematophore that wears well, its allows puncture needle to be oblique and moves towards the multiple spot position along the axis of puncture tube 1 and puncture, and also allows puncture needle to thrust its epicoele 1A neutralization and thrusts among its cavity of resorption 1B by epicoele 1A.
3, according to claim 1, backing plate 2 is medical stainless steel light sheet material (also can be other medical materials), its profile, big or small consistent with the following inwall of puncture tube 1 cavity of resorption 1B, and be placed among the cavity of resorption 1B of puncture tube 1, it can stop piercing through of puncture needle effectively.
4, according to claim 1, last valve casing 3 is one to be the upwards housing of recess, and combined with liquid in-out pipe 3A; 4 of following valve casings are one to be the housing of downward recess, and two ends have been made up feed tube 4A and drain pipe 4B respectively, and wherein the axis of feed tube 4A and drain pipe 4B can have certain angle not necessarily point-blank; The axis direction of the liquid in-out pipe 3A of last valve casing 3 and the feed tube 4A of following valve casing 4 is consistent.
5, according to claim 1, film 5 is a reversible concave elastomer, places the cavity of being made up of last valve casing 3 and following valve casing 4, the variation of can reversing therein of the depression direction of film 5, and be divided into mutual two cavitys up and down that completely cut off; The outer concave face of film 5 can contact with the sunken inside face of last valve casing 3 and following valve casing 4, and their size, shape consistent (its shape can be circular, ellipse or other shapes); When the depression direction of the depression direction of film 5 and following valve casing 4 is consistent, can descend the drain pipe 4B sealing of valve casing 4.
6, according to claim 1, the size of two cavity outlets on the puncture tube 1, shape are consistent with external diameter size, the shape of the feed tube 4A of the liquid in-out pipe 3A of last valve casing 3 and following valve casing 4 respectively, and their closely connect by preceding band 8A; Upper cavity 1A on the puncture tube 1 is communicated with the cavity of being made up of last valve casing 3, film 5, and forms the malleation adjusting cavity of a sealing.
7, according to claim 5 and claim 6, by the liquid capacity in the epicoele 1A that regulates puncture tube 1, the depression direction of film 5 is reversed, and then can realize down the feed tube 4A and the conducting between the drain pipe 4B of valve casing 4 and close, thereby realize that transfusion and pipe sealing state replace.
8, according to claim 5 and claim 6, when the depression direction of film 5 by upwards becoming when downward, the cavity volume between film 5 and the following valve casing 4 is diminished, at this moment, liquid therebetween will flow to the direction of treatment pipe 7, thereby realize the malleation design.
9, according to claim 1, treatment pipe 7 closely is connected with the drain pipe 4B of following valve casing 4 with back band 8B by stay pipe 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910066023A CN101642602A (en) | 2009-09-02 | 2009-09-02 | Embedded chemotherapy pump with positive-pressure function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910066023A CN101642602A (en) | 2009-09-02 | 2009-09-02 | Embedded chemotherapy pump with positive-pressure function |
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| Publication Number | Publication Date |
|---|---|
| CN101642602A true CN101642602A (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910066023A Pending CN101642602A (en) | 2009-09-02 | 2009-09-02 | Embedded chemotherapy pump with positive-pressure function |
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| Country | Link |
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| CN (1) | CN101642602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764164A (en) * | 2012-07-12 | 2012-11-07 | 北京兆仕医疗器械有限责任公司 | Sealing-free tube implanted administration device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503402A (en) * | 1966-03-23 | 1970-03-31 | Rudolf R Schulte | Shunt device |
| CN2053097U (en) * | 1989-08-09 | 1990-02-21 | 上海医疗器械研究所 | Store device for cerebrospinal fluid |
| CN2185608Y (en) * | 1993-06-03 | 1994-12-21 | 王建林 | Intracorporal pump |
| CN101502695A (en) * | 2009-01-15 | 2009-08-12 | 徐泱 | Embedded type chargeable sustained-release administration pump |
-
2009
- 2009-09-02 CN CN200910066023A patent/CN101642602A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3503402A (en) * | 1966-03-23 | 1970-03-31 | Rudolf R Schulte | Shunt device |
| CN2053097U (en) * | 1989-08-09 | 1990-02-21 | 上海医疗器械研究所 | Store device for cerebrospinal fluid |
| CN2185608Y (en) * | 1993-06-03 | 1994-12-21 | 王建林 | Intracorporal pump |
| CN101502695A (en) * | 2009-01-15 | 2009-08-12 | 徐泱 | Embedded type chargeable sustained-release administration pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102764164A (en) * | 2012-07-12 | 2012-11-07 | 北京兆仕医疗器械有限责任公司 | Sealing-free tube implanted administration device |
| CN102764164B (en) * | 2012-07-12 | 2014-12-03 | 北京兆仕医疗器械有限责任公司 | Sealing-free tube implanted administration device |
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Application publication date: 20100210 |