CN2880135Y - ported venous catheter - Google Patents
ported venous catheter Download PDFInfo
- Publication number
- CN2880135Y CN2880135Y CN 200620080866 CN200620080866U CN2880135Y CN 2880135 Y CN2880135 Y CN 2880135Y CN 200620080866 CN200620080866 CN 200620080866 CN 200620080866 U CN200620080866 U CN 200620080866U CN 2880135 Y CN2880135 Y CN 2880135Y
- Authority
- CN
- China
- Prior art keywords
- conduit
- catheter
- venous duct
- tube wall
- venous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000008280 blood Substances 0.000 abstract description 20
- 210000004369 blood Anatomy 0.000 abstract description 20
- 239000003146 anticoagulant agent Substances 0.000 abstract description 12
- 229940127219 anticoagulant drug Drugs 0.000 abstract description 12
- 230000006378 damage Effects 0.000 abstract description 2
- 230000001268 conjugating effect Effects 0.000 abstract 1
- 208000007536 Thrombosis Diseases 0.000 description 10
- 239000003814 drug Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 229920000669 heparin Polymers 0.000 description 7
- ZFGMDIBRIDKWMY-PASTXAENSA-N heparin Chemical compound CC(O)=N[C@@H]1[C@@H](O)[C@H](O)[C@@H](COS(O)(=O)=O)O[C@@H]1O[C@@H]1[C@@H](C(O)=O)O[C@@H](O[C@H]2[C@@H]([C@@H](OS(O)(=O)=O)[C@@H](O[C@@H]3[C@@H](OC(O)[C@H](OS(O)(=O)=O)[C@H]3O)C(O)=O)O[C@@H]2O)CS(O)(=O)=O)[C@H](O)[C@H]1O ZFGMDIBRIDKWMY-PASTXAENSA-N 0.000 description 7
- 229960001008 heparin sodium Drugs 0.000 description 7
- 210000004204 blood vessel Anatomy 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 4
- 238000001802 infusion Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000003462 vein Anatomy 0.000 description 3
- 206010064687 Device related infection Diseases 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000002310 elbow joint Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 210000001321 subclavian vein Anatomy 0.000 description 1
- 210000002620 vena cava superior Anatomy 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a venous catheter with the opening on the catheter wall, comprising a connector to communicate the pinhead and the venous catheter to ligate the connector. The front end of the above stated venous catheter is dull, and a longitudinal incisal opening is arranged on the wall near the catheter end. The stated venous catheter also comprises a hole which is arranged on the catheter wall to conjugate with the above stated incisal opening. The stated hole is conjugating with the incisal opening which is far away from the venous catheter. At least, the wall thickness of the venous catheter at the incisal opening and the hole is thinner than that at other places of the venous catheter. The stated hole has a diameter less than 0.3mm.The utility model has the advantages of that to draw blood when using the venous catheter is easy, thus convenient to observe blood returning with the blood difficult to enter the catheter. Therefore, anticoagulant drug can be avoided to use when the catheter is occluded, thus avoiding damage to the body caused by the application of anticoagulants.
Description
Technical field
This utility model relates to a kind of medical apparatus, is specifically related to a kind of venous duct, more specifically says, relates to a kind of blood that prevents and enters in the conduit, effectively avoids thrombosis in the conduit, conduit that the tube wall open type venous duct that stops up takes place.
Background technology
Venous duct is the route of administration of midium or long term (5 days～1 year) of providing of the patient for repeated multiple times treatment; be through elbow joint place trunk (basilic vein in clinical; median vein; cephalic vein) after puncturing successfully; conduit is inserted desired location in the body (superior vena cava or subclavian vein) along blood vessel; then the catheter tail opening is connect calparine cap or positive pressure connector; it is fixing with applying ointment or plaster that conduit is stayed outer body; inject the approach of required medicine by external catheter opening place; medicine directly injects in the body by conduit; avoided and the contacting of patient's blood vessel; especially the hypertonicity that those is had strong and stimulating to blood vessel; high concentration medicine can be avoided blood vessel injury effectively; the protection patient's blood vessel has played the effect of an alternative blood vessel.
The employed conduit of China mostly is American-European countries's imported product greatly at present, and the conductor housing end opening mostly is open opening greatly, and this kind opening mode brings inconvenience to the patient during the long-term indwelling of conduit, also increase workload for the clinical treatment nursery work, brought trouble.Mainly show as: need with behind the normal saline flushing conduit after injecting medicine, the heparin sodium saline anticoagulant row malleation tube sealing that reuse configures stops up for avoiding conduit at the treatment tempus intercalare, requires every 12 hours row to repeat washing pipe, tube sealing again at every turn.If prolong washing pipe, tube sealing time, conduit stops up probability will obviously be increased along with time expand.Tail end of conduit is partly stayed external in addition, tube material is very soft whippy silica gel, along with telescopic movable, the conduit of patient's elbow joint gives a discount sometimes and is squeezed, the heparin sodium saline of catheter proximal end is discharged because of extruding, owing to the vacuum suction effect, part blood backflows from the catheter proximal end opening and enters in the conduit simultaneously, and form thrombosis because of lacking anticoagulant in the conduit this moment, cause conduit to stop up, increased workload and trouble to clinical position.
In order to address the above problem, reduce washing pipe, tube sealing number of times, reduce thrombosis in the conduit, the generation of avoiding conduit to stop up has the people that the conduit of the open opening of front end is carried out technological improvement, and catheter opening is designed at catheter proximal end tube wall place, its opening mode is incision formula, i.e. otch.This design is when the treatment administration, lean on infusion or inject pressure, liquid is flowed out from incision, during not administration, pressure balance, cut closure, conduit is kept closed state substantially and is prevented that blood from entering in the conduit, can effectively avoid thrombosis in the conduit, the generation of avoiding conduit to stop up.But when adopting the venous duct pumpback blood back of side wall relief, because duct wall structure and conduit external and internal pressure, tube wall is inwardly opened difficulty.
The utility model content
This utility model has overcome the shortcoming of existing venous duct, a kind of venous duct of tube wall opening of architecture advances is provided, this conduit is easy to pumpback blood, can observe the blood back situation easily, blood is difficult for backflowing and enters in the conduit, therefore can avoid when tube sealing, using the anticoagulant medicine, avoid the infringement of anticoagulant body.
For realizing goal of the invention of the present utility model, this utility model has adopted following technical proposals.
The utility model discloses a kind of tube wall open type venous duct, comprise adapter that is connected with syringe needle and the venous duct that is connected with adapter, the front end of described venous duct is arranged to blunt nosed, described venous duct longitudinally is provided with otch near on the tube wall of end, it is characterized in that described venous duct also comprises;
One perforate, described perforate are arranged on the tube wall of venous duct and with described otch and engage.
In the technique scheme, increase perforate on otch, promptly changed the complete seal and the manifold pressure of conduit, by back-suction, form negative pressure, this technology has following beneficial effect compared with the prior art:
1, conduit of the present utility model is the otch of tube wall band micropore, when the treatment administration, lean on infusion or inject pressure, liquid is flowed out from incision, during not administration, pressure balance, cut closure, conduit is kept closed state substantially and is prevented that blood from entering in the conduit, can effectively avoid thrombosis in the conduit, the generation of avoiding conduit to stop up.
2, conduit of the present utility model otch good leak tightness when not giving the medicine injection, blood is difficult to backflow into conduit, can avoid using the anticoagulant of heparin sodium saline, has avoided the infringement of anticoagulant to body.This conduit goes for the patient of various diseases, does not have heparin sodium to use contraindication.
3, prolonged washing pipe, the tube sealing time of conduit, blood does not backflow into conduit, is generally weekly washing pipe, tube sealing once, for the patient provides convenience, has improved patient's quality of life, has reduced conduit maintenance workload during the catheter retaining to medical personnel yet.
4, avoid the formation of thrombosis in the conduit effectively, increased the safety that conduit uses.
5, reduced the catheter infections rate.The open opening conduit of the design of this conduit and front end has reduced washing pipe, tube sealing number of times apparent in viewly, has reduced the operation frequency of getting thrombosis, thrombus dissolving because of thrombosis in the conduit, has reduced the invasive number of operations, has lowered the probability of catheter infections.
6, for the patient has saved the conduit maintenance cost, saved the expense that the heparin sodium a heatable brick bed coagulate medicine, also reduced medical treatment cost simultaneously, saved medical resource.
7, with respect to the conduit of import, the production cost of this conduit is low, and price is relatively cheap.
The pruning of the open opening catheter length of front end is reduced according to measuring length in catheter proximal end usually, for preventing that blood flows to the tail end opening from the head end opening in the piercing process, cause conduit to stop up, thereby the tail end of conduit opening connects calparine cap or positive pressure connector seals, and catheter length is pruned and can only catheter proximal end vertically be pruned.Front tube wall opening formula conduit, because duct wall otch good leak tightness, blood is difficult to backflow into conduit, and itself and conduit are pruned can be at the tail end of conduit, and this method more helps accurately controlling conduit length in vivo.
Preferably: the incision site that described perforate is arranged on away from the venous duct end engages with described otch.
For further being convenient to the folding of otch and perforate, described at least venous duct is provided with the thickness of the thickness of otch and perforate tube wall partly less than other part tube walls of venous duct.
Further preferred: the diameter of described perforate is less than 0.3mm.
In this utility model, by engage perforate on the otch of conduit, conduit is easy to pumpback blood, can observe the blood back situation easily, blood is difficult for backflowing and enters in the conduit, therefore can avoid using the anticoagulant medicine when tube sealing, has avoided the infringement of anticoagulant to body.
Conduit selects to have the medical silica-gel material of radiography, and centimetre to be the length mark of unit, total length is 60 centimetres, and flushable support seal wire is arranged in the conduit on the catheter body, and seal wire is apart from certain distance foremost, and catheter proximal end is a round blunt shape.Tail end after conduit is pruned connects with adapter, and the outside is threaded mouth on the adapter, is convenient to be connected with calparine cap or positive pressure connector.Connector opening can connect transfusion device and injection empty needle.
Description of drawings
Fig. 1 is the structural representation of tube wall open type venous duct.
Fig. 2 is the A portion enlarged drawing of the specific embodiment 1 among Fig. 1.
Fig. 3 is the A portion enlarged drawing of the specific embodiment 2 among Fig. 1.
Fig. 4 is Fig. 2 user mode figure.
Fig. 5 is the structural representation of the another kind of specific embodiment of tube wall open type venous duct.
The specific embodiment
To a kind of tube wall open type venous duct shown in Figure 5, comprise adapter 1 that is connected with syringe needle and the venous duct 2 that is connected with adapter as Fig. 1.Fig. 1 has represented a kind of adapter 1 and the integrated structure of venous duct, and this structure venous duct can not be pruned, and venous duct length is certain.Fig. 5 has represented the structure of a kind of adapter and venous duct split, and venous duct can be pruned, and includes flushable support seal wire 6 in the venous duct of Fig. 5, the lock slots 7 of adapter, the lock dog 8 of adapter.In use, can prune the venous duct rear end as required, make the length that venous duct reaches to be needed, afterwards the rear end of venous duct is inserted in the connector latch, adapter is inserted in the adapter lock part, make the lock slots locking of lock dog and adapter, finish being connected of venous duct and adapter.The importing of venous duct when the support seal wire is convenient to inject.
It is blunt nosed 3 that the front end of venous duct is provided with, and as Fig. 2, Fig. 3, shown in Figure 4, blunt nosed 3 are processed by the hard elastomeric material of matter comparatively, so that the importing of conduit.Venous duct longitudinally is provided with otch 4 near on the tube wall of end, and otch 4 is in closure state usually, then is in open state by the external and internal pressure difference when injecting or drawing back blood.Venous duct also comprises;
One perforate 5, perforate 5 are arranged on the tube wall of venous duct and with otch 4 and engage.
As Fig. 2, shown in Figure 4, the incision site that perforate 4 is arranged on away from the venous duct end engages with otch.
As shown in Figure 3, perforate 4 is arranged on the otch medium position and engages with otch.
Venous duct is provided with the thickness of tube wall of otch and perforate less than the thickness of other part tube walls of venous duct.
The diameter of perforate is less than 0.3mm.
In the above-mentioned specific embodiment, conduit is the otch of tube wall band micropore, when the treatment administration, lean on infusion or inject pressure, liquid is flowed out from incision, during not administration, pressure balance, cut closure, conduit is kept closed state substantially and is prevented that blood from entering in the conduit, can effectively avoid thrombosis in the conduit, the generation of avoiding conduit to stop up.And not giving medicine when injection otch good leak tightness, blood is difficult to backflow into conduit, can avoid using the anticoagulant of heparin sodium saline, has avoided the infringement of anticoagulant to body.This conduit goes for the patient of various diseases, does not have heparin sodium to use contraindication.
In this utility model, shown in the above-mentioned specific embodiment, venous duct 2 common employings wait the wall thickness structure, also can adopt the structure of the thickness of the tube wall that otch 4 parts are set less than other part pipe thicknesses of venous duct.
The above-mentioned specific embodiment is not the qualification to this utility model protection domain, and according to inventive concept of the present utility model, the specific embodiment can be done various variations.
Claims (4)
1, a kind of tube wall open type venous duct, comprise adapter that is connected with syringe needle and the venous duct that is connected with adapter, the front end of described venous duct is arranged to blunt nosed, and described venous duct longitudinally is provided with otch near on the tube wall of end, it is characterized in that described venous duct also comprises;
One perforate, described perforate are arranged on the tube wall of venous duct and with described otch and engage.
2, tube wall open type venous duct according to claim 1 is characterized in that, the incision site that described perforate is arranged on away from the venous duct end engages with described otch.
3, tube wall open type venous duct according to claim 1 is characterized in that, described venous duct is provided with the thickness of the thickness of otch and perforate tube wall partly less than the venous duct tube wall.
4, tube wall open type venous duct according to claim 1 is characterized in that the diameter of described perforate is less than 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620080866 CN2880135Y (en) | 2006-01-26 | 2006-01-26 | ported venous catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620080866 CN2880135Y (en) | 2006-01-26 | 2006-01-26 | ported venous catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2880135Y true CN2880135Y (en) | 2007-03-21 |
Family
ID=37879976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620080866 Expired - Fee Related CN2880135Y (en) | 2006-01-26 | 2006-01-26 | ported venous catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2880135Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785897A (en) * | 2010-03-25 | 2010-07-28 | 山东威高集团医用高分子制品股份有限公司 | Peripherally inserted central catheter |
| CN108355225A (en) * | 2018-01-24 | 2018-08-03 | 山东百多安医疗器械有限公司 | A kind of ductus venosus and preparation method thereof with the dual anti-valve that backflows |
| CN108498934A (en) * | 2018-04-18 | 2018-09-07 | 山东吉威医疗制品有限公司 | Glomus pulmonale ductus bursae |
-
2006
- 2006-01-26 CN CN 200620080866 patent/CN2880135Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785897A (en) * | 2010-03-25 | 2010-07-28 | 山东威高集团医用高分子制品股份有限公司 | Peripherally inserted central catheter |
| CN108355225A (en) * | 2018-01-24 | 2018-08-03 | 山东百多安医疗器械有限公司 | A kind of ductus venosus and preparation method thereof with the dual anti-valve that backflows |
| CN108498934A (en) * | 2018-04-18 | 2018-09-07 | 山东吉威医疗制品有限公司 | Glomus pulmonale ductus bursae |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 |