CN203263917U - Medical transfusion connector connected with external indwelling catheter - Google Patents
Medical transfusion connector connected with external indwelling catheter Download PDFInfo
- Publication number
- CN203263917U CN203263917U CN 201320189922 CN201320189922U CN203263917U CN 203263917 U CN203263917 U CN 203263917U CN 201320189922 CN201320189922 CN 201320189922 CN 201320189922 U CN201320189922 U CN 201320189922U CN 203263917 U CN203263917 U CN 203263917U
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- fittings body
- inner chamber
- joint
- connection block
- plugging
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Abstract
The utility model relates to a device for introducing media into a body, in particular to a medical transfusion connector connected with an external indwelling catheter. The medical transfusion connector connected with the external indwelling catheter is characterized by comprising a connector base. The connector base and a connecting base are formed integrally or in a split mode, the connector base is fixedly connected with the connecting base, the front section of a connector body is inserted into an inner cavity of the connector base and provided with a device for spirally adjusting axial displacement, a space for the connector body to adjust the axial displacement is reserved between the connector body and the inner cavity of the connector base, or between the connector body and an inner cavity of the connecting base, or between the connector body and an inner cavity of the connector base and the inner cavity of the connecting base, and an inner cavity of the connector body is communicated with the inner cavity of the connecting base. Compared with the prior art, the medical transfusion connector connected with the external indwelling catheter has the advantages of being simple and effective in method for preventing and eliminating negative pressure, and convenient to operate.
Description
Technical field
This utility model relates to a kind ofly introduces device in body with medium, particularly a kind of medical infusion joint of plugging into non small cellCatheter.
Background technology
In clinical treatment, when needs of patients is repeatedly infused, usually can use non small cellCatheter, the mode of connecing of refuting of the outer inlying catheter of human body and transfusion device is divided into and has pin and needleless to refute to connect.Of the prior art a kind ofly have pin to refute the mode of connecing as shown in Figure 1, and the medical infusion joint is comprised of Connection Block 1 and the fittings body 2 affixed with it, and this fittings body 2 is called again calparine cap usually.The transfusion device needle tubing inserts from the seal rubber plug at fittings body 2 tops.Transfusion ends when extracting the transfusion device needle tubing, thereby the former space that occupies of needle tubing produces multiple the pressure in inlying catheter near vacuum, blood can flow backwards in inlying catheter from blood vessel, refluence blood causes blood coagulation to stop up inlying catheter, can't again infuse, serious may produce thrombosis, damages to sufferer.Therefore, the medical worker usually need to get a tube sealing syringe with the puncture needle tubing inlying catheter is rinsed tube sealing, during the tube sealing operation, syringe needle tube penetrates from the calparine cap plug, enter the calparine cap inner chamber, must occupy the calparine cap intracavity space, and tube sealing is when finishing, the medical worker needs the limit to withdraw from the syringe needle tube edge to inject tube-sealing solution, replenish the space that needle tubing occupies, in order to avoid form multiple the pressure in inlying catheter.this complex operation and the space that still can residual tube-sealing solution finally can't fill up, negative pressure still can produce, for remedy such and insufficient, traditionally after not going up flow-stopping clip clamping extension tube, flow-stopping clip need to be slided toward the conduit tube component direction, make extension tube be extruded gradually, to extend liquid in pipe and clamp-on the inlying catheter inner chamber, drive refluence blood out of, but when flow-stopping clip and extension tube clamp, resistance to sliding is large, the drawing extension tube, easily extension tube is elongated and attenuate, conduit tube component is during keeping somewhere, through repeatedly drawing, serious meeting is broken extension tube and is caused hemorrhage, add that the conduit tube component indwelling sticks on the sufferer health, the extension tube limited length, if drawing is careless, conduit tube component can be pulled out the sufferer health, occur for fear of above-mentioned accident, it is overcautious when the medical worker operates, sometimes flow-stopping clip drawing length is inadequate, or can not guarantee fully the conduit inner blood is driven totally, medical personnel's workload and psychological burden have been increased therefore this mode of operation is invisible.
The utility model content
This utility model purpose is to overcome the deficiencies in the prior art part and provides a kind of can eliminate negative pressure and easy to operate medical infusion joint of plugging into non small cellCatheter.
The purpose of this utility model realizes by following approach.
the medical infusion joint of plugging into non small cellCatheter, comprise Connection Block and fittings body, the extension tube of Connection Block front end and inlying catheter is plugged into, it forms main points and is: also comprise a kind of joint pedestal, this joint pedestal or with Connection Block Construction integration or minute body structure but affixed with Connection Block, the fittings body leading portion is plugged in joint pedestal inner chamber and has the device that adjustable diameter and screw adjusting is axially passed, has the space that the fittings body adjustable diameter and screw adjusting is axially passed between fittings body and joint pedestal inner chamber or between fittings body and Connection Block inner chamber or between fittings body and joint pedestal inner chamber and Connection Block inner chamber, the fittings body inner chamber is communicated with the Connection Block inner chamber.
Joint pedestal and Connection Block inner chamber consist of an airtight die cavity like this, utilize the advance and retreat that the fittings body adjustable diameter and screw adjusting is axially passed to change airtight die cavity volume size.Fittings body is stepped back, and airtight die cavity increases; Fittings body advances, and airtight die cavity reduces.During transfusion work, fittings body is first stepped back, and airtight die cavity increases, and is convenient to hold more liquid; Transfusion finishes needle tubing to be withdrawed from simultaneously, and fittings body advances, airtight die cavity from large to small, thereby fill up the space that former needle tubing occupies, prevent negative pressure or discharge conduit inner blood intravasation to eliminate negative pressure.This prevent negative pressure and eliminate the mode of negative pressure simple, effective, easy to operate.
The purpose of this utility model can also realize by following approach.
The device that adjustable diameter and screw adjusting is axially passed has multiple concrete structure available, and wherein two kinds of following discloses a kind ofly are:
The fittings body leading portion is plugged in joint pedestal inner chamber and with joint pedestal spiral and is connected.
Like this, the swivel body is by fittings body opposing tabs pedestal helical rotation, and fittings body opposing tabs pedestal is spiral to advance and spiral retreating thereby allow.
The place ahead of fittings body and joint pedestal spiral linkage section is provided with a kind of inner seal liner.
Joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, large-scale cavity wall setting screws female thread and Connection Block corresponding part interlocking, small-sized cavity wall arranges the advance and retreat female thread and is connected with fittings body scalable spiral, be provided with a kind of shoulder block before the advance and retreat female thread, before inner seal liner was arranged on this shoulder block, the fittings body paragraph that inner seal liner is corresponding therewith was a kind of cylinder.
The fittings body front end is a kind of standard Luer tapered section, and paragraph corresponding in the Connection Block inner chamber or in joint pedestal inner chamber is also a kind of standard Luer tapering.
This fittings body claims again the standard Luer male contact.
The fittings body front end is a kind of standard Luer tapered section, paragraph corresponding in the Connection Block inner chamber is also a kind of standard Luer tapering, this corresponding paragraph comprises that Connection Block extend into the part that the joint pedestal screws female thread, and the fittings body front end extend into this corresponding paragraph of Connection Block and flexible hereinto.Or:
The joint pedestal is at the inner core of the paragraph that screws female thread projection one protruded stigma forward, this protruded stigma outer peripheral face is a kind of standard Luer tapered section and extend in the Connection Block inner chamber, paragraph corresponding in the Connection Block inner chamber is also a kind of standard Luer tapering and is connected with this protruded stigma outer peripheral face, the fittings body front end is flexible in joint pedestal inner chamber, elastic along with fittings body, the joint pedestal cavity volume in fittings body the place ahead dwindles and increases along with corresponding.
The another kind of concrete structure of the device that above-mentioned adjustable diameter and screw adjusting is axially passed can be:
Fittings body is comprised of screw rod and lift head, the seal rubber plug of plugging into needle tubing is positioned at the screw rod tail end, the screw rod leading portion is plugged in the lift head inner chamber and with its spiral and is connected, screw rod also is connected with joint pedestal axial limiting, but lift head is nested with in the inner chamber of joint pedestal in the mode of slippage before and after the opposing tabs pedestal.
Like this, by axial limiting, helical rotation is broken down into idle running and moves forward and backward, and wherein dallies and is completed by screw rod, moves forward and backward and is completed by lift head due to screw rod.
Joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, large-scale cavity wall setting screws female thread and Connection Block corresponding part interlocking, small-sized cavity wall arranges cylindrical hole and the socket of lift head matched in clearance, this cylindrical hole length is greater than the length of lift head, cylindrical hole and screw and have a shoulder block between screw thread, before a kind of inner seal liner was arranged on this shoulder block, the endoporus that the front end of lift head passes this this inner seal liner protruded in the Connection Block inner chamber.
The lift head front end is a kind of standard Luer tapered section, and paragraph corresponding in the Connection Block inner chamber or in joint pedestal inner chamber is also a kind of standard Luer tapering.
The screw thread that above-mentioned realization advance and retreat are regulated is a kind of trapezoidal thread preferably.
A kind of joint overcoat is coated on fittings body periphery and affixed with fittings body.
In sum, this utility model has following advantage compared to existing technology: the mode that prevents negative pressure and elimination negative pressure is simple, effective, easy to operate.
Description of drawings
Fig. 1 is the structural representation of a kind of remaining needle in prior art;
Fig. 2 uses containing needle structure schematic diagram described in the utility model and the medical infusion joint that non small cellCatheter is plugged into;
Fig. 3 is the structural representation of the described medical infusion joint of plugging into non small cellCatheter of this utility model embodiment one;
Fig. 4 is that the described medical infusion joint of plugging into non small cellCatheter of this utility model embodiment two is advancing to the position the structural representation of state at fittings body;
Fig. 5 is that the described medical infusion joint of plugging into non small cellCatheter of this utility model embodiment two is stepped back the structural representation of the state of putting in place at fittings body;
Fig. 6 is the structural representation of the described medical infusion joint of plugging into non small cellCatheter of this utility model most preferred embodiment.
Label declaration
1 Connection Block 2 fittings body 21 screw rod 22 lift heads
3 joint pedestal 31 protruded stigma 4 inner seal liner 5 seal rubber plugs
6 extension tube 7 flow-stopping clip 8 conduit tube component 9 joint overcoats.
The specific embodiment
Embodiment one:
With reference to Fig. 2, a kind of remaining needle that uses the medical infusion joint that described in the utility model and non small cellCatheter plug into is comprised of Connection Block 1, fittings body 2, joint pedestal 3, seal rubber plug 5, extension tube 6, flow-stopping clip 7 and conduit tube component.
With reference to Fig. 3, the medical infusion joint of plugging into non small cellCatheter, comprise Connection Block 1, fittings body 2 and joint pedestal 3, the extension tube 6 of Connection Block front end and inlying catheter is plugged into, 1 minute body structure of joint pedestal 3 and Connection Block but affixed with Connection Block 1, fittings body 2 leading portions are plugged in joint pedestal 3 inner chambers and with joint pedestal 3 spirals and are connected, have the space that fittings body 2 adjustable diameter and screw adjusting are axially passed between between fittings body 2 and Connection Block 1 inner chamber and joint pedestal 3 inner chambers, fittings body 2 inner chambers are communicated with the Connection Block inner chamber.Joint pedestal 3 inner chambers are a kind of pre-large post-small ladder die cavity, large-scale cavity wall setting screws female thread and Connection Block 1 corresponding part interlocking, small-sized cavity wall arranges the advance and retreat female thread and is connected with fittings body 2 scalable spirals, be provided with a kind of shoulder block before the advance and retreat female thread, before inner seal liner 4 was arranged on this shoulder block, fittings body 2 paragraph of inner seal liner 4 correspondences therewith was a kind of cylinders.Fittings body 2 front ends are a kind of standard Luer tapered sections, paragraph corresponding in Connection Block 1 inner chamber is also a kind of standard Luer tapering, this corresponding paragraph comprises that Connection Block 1 extend into the part that joint pedestal 3 screws female thread, and fittings body 2 front ends extend into this corresponding paragraph of Connection Block 1 and flexible hereinto.Above-mentioned advance and retreat screw thread is a kind of trapezoidal thread.
It is same as the prior art that the present embodiment is not stated part.
Embodiment two:
With reference to Fig. 4, Fig. 5, with the medical infusion joint that non small cellCatheter is plugged into, comprise Connection Block 1, fittings body 2 and joint pedestal 3, the extension tube 6 of Connection Block front end and inlying catheter is plugged into, and the present embodiment is to improve on the basis of embodiment one.Joint pedestal 3 is at the inner core of the paragraph that screws female thread projection one protruded stigma 31 forward, these protruded stigma 31 outer peripheral faces are a kind of standard Luer tapered sections and extend in Connection Block 1 inner chamber (not shown in FIG., can be with reference to figure 3), paragraph corresponding in Connection Block 1 inner chamber is also a kind of standard Luer tapering and is connected with these protruded stigma 31 outer peripheral faces.Fittings body 2 front ends no longer arrange the standard Luer tapering, and fittings body 2 front ends are just flexible in joint pedestal 3 inner chambers, elastic along with fittings body 2, and joint pedestal 3 cavity volumes in fittings body 2 the place aheads dwindle and increase along with corresponding.A kind of joint overcoat 9 is coated on fittings body 2 peripheries and affixed with fittings body 2.
It is identical with embodiment one that the present embodiment is not stated part.
Most preferred embodiment:
With reference to Fig. 6, the medical infusion joint of plugging into non small cellCatheter, comprise Connection Block 1, fittings body 2 and joint pedestal 3, the extension tube 6 of Connection Block front end and inlying catheter is plugged into, 1 minute body structure of joint pedestal 3 and Connection Block but affixed with Connection Block 1, fittings body 2 leading portions are plugged in joint pedestal 3 inner chambers, and fittings body 2 inner chambers are communicated with the Connection Block inner chamber.Fittings body is comprised of screw rod 21 and lift head 22, the seal rubber plug 5 of plugging into needle tubing is positioned at screw rod 21 tail ends, screw rod 21 leading portions are plugged in lift head 22 inner chambers and with its spiral and are connected, screw rod 21 also is connected with joint pedestal 3 axial limitings, but lift head 22 is nested with in the inner chamber of joint pedestal 3 in the mode of opposing tabs pedestal 3 front and back slippages.Joint pedestal 3 inner chambers are a kind of pre-large post-small ladder die cavity, large-scale cavity wall setting screws female thread and Connection Block 1 corresponding part interlocking, and (Connection Block 1 is not shown in FIG., can be with reference to figure 2, Fig. 3), small-sized cavity wall arranges cylindrical hole and lift head 22 matched in clearance sockets, this cylindrical hole length is greater than the length of lift head 22, thereby makes lift head 22 and even fittings body 2 have the space that adjustable diameter and screw adjusting is axially passed.Cylindrical hole and screw and have a shoulder block between screw thread, before a kind of inner seal liner 4 was arranged on this shoulder block, the endoporus that the front end of lift head passes this this inner seal liner 4 protruded in Connection Block 1 inner chamber.Lift head 22 front ends are a kind of standard Luer tapered sections, and paragraph corresponding in Connection Block 1 inner chamber is also a kind of standard Luer tapering.
It is identical with embodiment one that the present embodiment is not stated part.
Claims (11)
1. the medical infusion joint of plugging into non small cellCatheter, comprise Connection Block and fittings body, the extension tube of Connection Block front end and inlying catheter is plugged into, it is characterized in that, also comprise a kind of joint pedestal, this joint pedestal or with Connection Block Construction integration or minute body structure but affixed with Connection Block, the fittings body leading portion is plugged in joint pedestal inner chamber and has the device that adjustable diameter and screw adjusting is axially passed, has the space that the fittings body adjustable diameter and screw adjusting is axially passed between fittings body and joint pedestal or between fittings body and Connection Block inner chamber or between fittings body and joint pedestal inner chamber and Connection Block inner chamber, the fittings body inner chamber is communicated with the Connection Block inner chamber.
2. medical infusion joint of plugging into non small cellCatheter according to claim 1, is characterized in that, the fittings body leading portion is plugged in joint pedestal inner chamber and with joint pedestal spiral and is connected.
3. medical infusion joint of plugging into non small cellCatheter according to claim 2, is characterized in that, the place ahead of fittings body and joint pedestal spiral linkage section is provided with a kind of inner seal liner.
4. according to claim 1 and the non small cellCatheter medical infusion joint of plugging into, it is characterized in that, joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, large-scale cavity wall setting screws female thread and Connection Block corresponding part interlocking, small-sized cavity wall arranges the advance and retreat female thread and is connected with fittings body scalable spiral, be provided with a kind of shoulder block before the advance and retreat female thread, before inner seal liner was arranged on this shoulder block, the fittings body paragraph that inner seal liner is corresponding therewith was a kind of cylinder.
5. according to claim 1 or 4 described and the non small cellCatheters medical infusion joints of plugging into, is characterized in that, the fittings body front end is a kind of standard Luer tapered section, and corresponding paragraph is also a kind of standard Luer tapering in the Connection Block inner chamber or in joint pedestal inner chamber.
6. according to claim 5 and the non small cellCatheter medical infusion joint of plugging into, it is characterized in that, the fittings body front end is a kind of standard Luer tapered section, paragraph corresponding in the Connection Block inner chamber is also a kind of standard Luer tapering, this corresponding paragraph comprises that Connection Block extend into the part that the joint pedestal screws female thread, and the fittings body front end extend into this corresponding paragraph of Connection Block and flexible hereinto.
7. according to claim 5 and the non small cellCatheter medical infusion joint of plugging into, it is characterized in that, the joint pedestal is at the inner core of the paragraph that screws female thread projection one protruded stigma forward, this protruded stigma outer peripheral face is a kind of standard Luer tapered section and extend in the Connection Block inner chamber, paragraph corresponding in the Connection Block inner chamber is also a kind of standard Luer tapering and is connected with this protruded stigma outer peripheral face, the fittings body front end is flexible in joint pedestal inner chamber, elastic along with fittings body, the joint pedestal cavity volume in fittings body the place ahead dwindles and increases along with corresponding.
8. according to claim 1 and the non small cellCatheter medical infusion joint of plugging into, it is characterized in that, fittings body is comprised of screw rod and lift head, the seal rubber plug of plugging into needle tubing is positioned at the screw rod tail end, the screw rod leading portion is plugged in the lift head inner chamber and with its spiral and is connected, screw rod also is connected with joint pedestal axial limiting, but lift head is nested with in the inner chamber of joint pedestal in the mode of slippage before and after the opposing tabs pedestal.
9. according to claim 8 and the non small cellCatheter medical infusion joint of plugging into, it is characterized in that, joint pedestal inner chamber is a kind of pre-large post-small ladder die cavity, large-scale cavity wall setting screws female thread and Connection Block corresponding part interlocking, small-sized cavity wall arranges cylindrical hole and the socket of lift head matched in clearance, this cylindrical hole length is greater than the length of lift head, cylindrical hole and screw and have a shoulder block between screw thread, before a kind of inner seal liner was arranged on this shoulder block, the endoporus that the front end of lift head passes this this inner seal liner protruded in the Connection Block inner chamber.
10. according to claim 8 and the non small cellCatheter medical infusion joint of plugging into, is characterized in that, the lift head front end is a kind of standard Luer tapered section, and corresponding paragraph is also a kind of standard Luer tapering in the Connection Block inner chamber or in joint pedestal inner chamber.
11. medical infusion joint of plugging into non small cellCatheter according to claim 1 is characterized in that a kind of joint overcoat is coated on fittings body periphery and affixed with fittings body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189922 CN203263917U (en) | 2013-04-16 | 2013-04-16 | Medical transfusion connector connected with external indwelling catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189922 CN203263917U (en) | 2013-04-16 | 2013-04-16 | Medical transfusion connector connected with external indwelling catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203263917U true CN203263917U (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320189922 Expired - Fee Related CN203263917U (en) | 2013-04-16 | 2013-04-16 | Medical transfusion connector connected with external indwelling catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203263917U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169429A1 (en) * | 2013-04-16 | 2014-10-23 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector for connecting to extracorporeal catheter |
| WO2014183271A1 (en) * | 2013-05-15 | 2014-11-20 | 福建省百仕韦医用高分子股份有限公司 | Pull positive pressure type medical infusion connector connected to extracorporal indwelling catheter |
| WO2015017961A1 (en) * | 2013-08-03 | 2015-02-12 | Zhang Jianming | Medical infusion joint having cut-off valve |
| WO2015154302A1 (en) * | 2014-04-11 | 2015-10-15 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector having medicinal solution filtering function |
| CN106039466A (en) * | 2016-06-24 | 2016-10-26 | 重庆科杰医疗设备有限公司 | Multiple-time positive pressure thrombus preventing venous indwelling needle and thrombus preventing method thereof |
-
2013
- 2013-04-16 CN CN 201320189922 patent/CN203263917U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014169429A1 (en) * | 2013-04-16 | 2014-10-23 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector for connecting to extracorporeal catheter |
| CN105228670A (en) * | 2013-04-16 | 2016-01-06 | 福建省百仕韦医用高分子股份有限公司 | The medical infusion joint of plugging into non small cellCatheter |
| CN105228670B (en) * | 2013-04-16 | 2018-03-16 | 福建省百仕韦医用高分子股份有限公司 | The medical infusion joint plugged into non small cellCatheter |
| WO2014183271A1 (en) * | 2013-05-15 | 2014-11-20 | 福建省百仕韦医用高分子股份有限公司 | Pull positive pressure type medical infusion connector connected to extracorporal indwelling catheter |
| WO2015017961A1 (en) * | 2013-08-03 | 2015-02-12 | Zhang Jianming | Medical infusion joint having cut-off valve |
| WO2015154302A1 (en) * | 2014-04-11 | 2015-10-15 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector having medicinal solution filtering function |
| CN106456872A (en) * | 2014-04-11 | 2017-02-22 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector having medicinal solution filtering function |
| CN106039466A (en) * | 2016-06-24 | 2016-10-26 | 重庆科杰医疗设备有限公司 | Multiple-time positive pressure thrombus preventing venous indwelling needle and thrombus preventing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |