CN2248569Y - Device for introducing media into the body by inserting skin of anti-back-flow type - Google Patents
Device for introducing media into the body by inserting skin of anti-back-flow type Download PDFInfo
- Publication number
- CN2248569Y CN2248569Y CN 96235805 CN96235805U CN2248569Y CN 2248569 Y CN2248569 Y CN 2248569Y CN 96235805 CN96235805 CN 96235805 CN 96235805 U CN96235805 U CN 96235805U CN 2248569 Y CN2248569 Y CN 2248569Y
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- CN
- China
- Prior art keywords
- resistance
- conduit
- wall
- catheter
- check joint
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a device for introducing medium into the bodies in a hypodermic injection mode. A catheter is arranged on a pump body which is provided with a puncture window, a connecting sleeve cylinder, a sealing ring and a check joint are arranged in the inserting opening of the catheter, the tail end of the catheter is tightly sheathed on the check joint, opening holes which are arranged on the side wall and the top part of the check joint are communicated with an inner cavity of the pump body through a central passage of the check joint, the outer wall of the check joint is provided with anti-slip inserted teeth, and the outer wall of the front end of the catheter is provided with a protruded bundling ring. The utility model has the advantages that the device can not influence the normal activities of patients, and can be repeatedly used for long term; the operation is simple and safe; the device for introducing medium into the bodies in a hypodermic injection mode also has the superior functions of reflux stop and slip prevention.
Description
This utility model belongs to a kind of and in the subcutaneous injection mode medium is introduced intravital apparatus.
In known public technology, the treatment cancer is carried out the administering mode external intubate perfusion commonly used of chemotherapy, external intubate perfusion complicated operation, and take place easily that conduit comes off, infection, aeroembolism, thrombosis and give patient's daily life disadvantage such as make troubles.In order to overcome above-mentioned shortcoming, Endermic implantating device for administration of drugs (ZL94221146.4) has appearred, if but find that in use operator are not careful, can not note malleation in the maintenance system, may cause that arterial blood refluxes or because the individual patients blood vessel is comparatively smooth, the doctor ties up the not firm conduit that may take place and comes off.
The purpose of this utility model is to propose a kind of new modifying device at the shortcoming that overcomes Endermic implantating device for administration of drugs (ZL94221146.4) existence.
Embodiment of the present utility model is in the pump housing upper conduit patchhole of the Endermic implantating device for administration of drugs that mainly is made of the pump housing, puncture window and conduit, conduit branch sleeve, installation sealing ring and resistance tieback head, the tail end of conduit tightly is enclosed within on the resistance tieback head, and the sidewall and the top drilling of resistance tieback head are connected by its central passage and pump housing inner chamber.The structure connection status of conduit and resistance tieback head is similar to the resistance of " valve inside " formula in fact and returns structure.The outer wall of resistance tieback head has anti-slip pawl.
In order to guarantee not allow conduit slippage from blood vessel, be used to insert that design has the protruding binding ring that draws on the outer wall of front end of blood vessel at conduit.Conduit makes blood vessel wall form corresponding bulge loop after inserting blood vessel, is convenient to tie up.
In order to prevent that more effectively arterial blood from refluxing, the state of sealing is made on the top of conduit, to opening a cross recess, on the sidewall of catheter proximal end, have pore from shaft pertaining.During use conduit is inserted in the blood vessel, because the elasticity of blood vessel wall makes blood vessel be close to conduit outer wall, cross recess and pore are waled, and blood can't flow in the blood vessel by cross recess and pore owing to supercharging in the syringe makes medicinal liquid during administration from cross recess or pore inflow catheter.
The utility model has the advantages that: this resistance backflow Endermic implantating doser is imbedded in patient's body, can avoid fully adopting that external intubate perfusion dispenser takes place easily that conduit comes off, infection, aeroembolism, thrombosis and give patient's daily life disadvantage such as make troubles; Because medicine can be delivered directly to focal zone by conduit, thereby can improve curative effect greatly and alleviate the general untoward reaction that chemotherapeutics causes the patient; This device volume is little, and is in light weight, and being imbedded in patient's body can not influence its normal activity, can be for repeatedly carrying out the chemotherapy administration repeatedly for a long time, and easy to operation, the misery and the economy that alleviate the patient are greatly carried on a shoulder pole again.This device can also be used for other disease that needs guiding administration in the body, for example the patient is implemented high nutrition transfusion or local analgesia dispenser in the body.Owing to have the resistance return-flow structure, in use,, arterial blood also will never take place reflux, and cause the thrombosis clogging even operator make mistakes.Simultaneously owing to increased sealing ring, the firm degree that anti-slip pawl and binding ring have been strengthened the tightness of whole device and connect when using has prevented to take place in the filling process aeroembolism effectively.
Accompanying drawing is the structural representation of this utility model embodiment.
Drawing explanation: the 1-pump housing, the 2-window that puncture, the 3-conduit, the 4-sealing ring, 5-conduit branch sleeve, 6-hinders tieback head, the anti-slip pawl of 7-, 8-binding ring, 9-pore, 10-cross recess.
Embodiment:
In conjunction with the accompanying drawings this utility model embodiment is elaborated.The pump housing 1 is a round box, the arcual sealing puncture of a biconvex window 2 is installed at an upper portion thereof, at its sidewall conduit 3 is housed, in the conduit insertion mouth of the pump housing 1, conduit branch sleeve 5 is housed, sealing ring 4 and resistance tieback head 6, the tail end of conduit 3 tightly are enclosed within on the resistance tieback head 6, branch sleeve 5, with tight fit or in the conduit that is installed in the pump housing 1 of being threaded inserts mouthful, the sidewall of resistance tieback head 6 and top drilling are connected by the inner chamber of the passage and the pump housing 1 wherein.The structure connection status of conduit 3 and resistance tieback head 6 is similar to the resistance of " valve inside " formula and returns structure, and the outer wall of resistance tieback head 6 has anti-slip pawl 7.Be provided with the binding ring 8 of projection on the front end outer wall of conduit 3, the state of sealing is made on the top of conduit 3, to opening a cross recess 10, has pore 9 from shaft pertaining on conduit 3 front end side wall.
Claims (4)
1, a kind of resistance backflow Endermic implantating doser, it is to be made of the pump housing (1), puncture window (2) and conduit (3), it is characterized in that: the conduit (3) on the pump housing (1) inserts in the mouth conduit branch sleeve (5) is housed, sealing ring (4) and resistance tieback head (6), the tail end of conduit (3) tightly is enclosed within on the resistance tieback head (6), the sidewall and the top drilling of resistance tieback head (6) are connected by the inner chamber of its central passage and the pump housing (1), and structure is returned in the resistance that constitutes " valve inside " formula.
2, resistance backflow Endermic implantating doser as claimed in claim 1, it is characterized in that: the outer wall of described resistance tieback head (6) has anti-slip pawl (7).
3, resistance backflow Endermic implantating doser as claimed in claim 1, it is characterized in that: described conduit (3) front end is made the state of sealing, and to opening a cross recess (10), has pore (9) from shaft pertaining on the sidewall.
4, as claim 1 or 3 described resistance backflow Endermic implantating dosers, it is characterized in that: the binding ring (8) that projection is arranged on described conduit (3) the front end outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96235805 CN2248569Y (en) | 1996-04-16 | 1996-04-16 | Device for introducing media into the body by inserting skin of anti-back-flow type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96235805 CN2248569Y (en) | 1996-04-16 | 1996-04-16 | Device for introducing media into the body by inserting skin of anti-back-flow type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2248569Y true CN2248569Y (en) | 1997-03-05 |
Family
ID=33911763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96235805 Expired - Fee Related CN2248569Y (en) | 1996-04-16 | 1996-04-16 | Device for introducing media into the body by inserting skin of anti-back-flow type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2248569Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042899A (en) * | 2018-01-24 | 2018-05-18 | 山东百多安医疗器械有限公司 | A kind of dual valve implantable drug delivery system |
| CN111659020A (en) * | 2020-06-11 | 2020-09-15 | 福建医科大学附属第一医院 | Diagnostic device for brain glioma |
| CN115554518A (en) * | 2022-10-28 | 2023-01-03 | 中国人民解放军空军军医大学 | Subcutaneous administration device for preoperative chemotherapy |
-
1996
- 1996-04-16 CN CN 96235805 patent/CN2248569Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108042899A (en) * | 2018-01-24 | 2018-05-18 | 山东百多安医疗器械有限公司 | A kind of dual valve implantable drug delivery system |
| CN111659020A (en) * | 2020-06-11 | 2020-09-15 | 福建医科大学附属第一医院 | Diagnostic device for brain glioma |
| CN115554518A (en) * | 2022-10-28 | 2023-01-03 | 中国人民解放军空军军医大学 | Subcutaneous administration device for preoperative chemotherapy |
| CN115554518B (en) * | 2022-10-28 | 2024-05-31 | 中国人民解放军空军军医大学 | Subcutaneous drug delivery device for preoperative chemotherapy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |