CN204181950U - A kind of Needleless seal formula infusion connector - Google Patents
A kind of Needleless seal formula infusion connector Download PDFInfo
- Publication number
- CN204181950U CN204181950U CN201420619106.5U CN201420619106U CN204181950U CN 204181950 U CN204181950 U CN 204181950U CN 201420619106 U CN201420619106 U CN 201420619106U CN 204181950 U CN204181950 U CN 204181950U
- Authority
- CN
- China
- Prior art keywords
- upper shell
- face
- seal formula
- delivery valve
- lower house
- 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.)
- Active
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
This utility model relates to technical field of medical instruments, particularly relates to a kind of Needleless seal formula infusion connector.Needleless seal formula infusion connector, comprise upper shell, lower house, the main cavity connected and composed by upper shell and lower house and the fluid-delivery valve be arranged in described main cavity, the upper end of described upper shell is provided with union joint, the lower end of described lower house is provided with Rule outer cone, described fluid-delivery valve is that elastomeric material is made, on it, circular end face is stretched out upper shell and is fixed on the top end face of union joint, the lower circular end face of described fluid-delivery valve is arranged between upper shell and lower house, and be close to the internal chamber wall of upper shell and the outer wall of lower house, described fluid-delivery valve is provided with the self-enclosed infusion channel matched with the female Luer of delivery device.Needleless seal formula infusion connector is made no matter to be at the transfusion state be connected with delivery device, or the closed state be not connected with delivery device, good seal can be had.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of Needleless seal formula infusion connector.
Background technology
Needleless seal formula infusion connector is mainly used in the endcapped of CVC (central venous catheter), PICC (Peripherally inserted central catheter), indwelling needle catheter, when delivery device is connected with Needleless seal formula infusion connector, form airtight infusion channel; After extracting delivery device, Needleless seal formula infusion connector then in air-tight state, avoids gas and external contamination source to enter transfusion catheter.
Along with CVC, PICC and indwelling needle catheter are applied clinically, the Clinical practice rate of Needleless seal formula infusion connector also improves thereupon, and in use, the seal of Needleless seal formula infusion connector is particularly important, as seal is poor, easily cause gas or external contamination source to enter human body, increase probability or bloodstream infection that human body produces aeroembolism.The use of existing Needleless seal formula infusion connector reduces pricking wound incidence rate, but its seal also has certain not enough, easily produces aeroembolism and bloodstream infection in use procedure.
Therefore, for above deficiency, need to provide a kind of good leak tightness and structure simple Needleless seal formula infusion connector.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is the problem solving existing Needleless seal formula infusion connector seal deficiency.
(2) technical scheme
In order to solve the problems of the technologies described above, this utility model provides a kind of Needleless seal formula infusion connector, comprise upper shell, lower house, the main cavity connected and composed by upper shell and lower house and the fluid-delivery valve be arranged in described main cavity, the upper end of described upper shell is provided with union joint, the lower end of described lower house is provided with Rule outer cone, described fluid-delivery valve is that elastomeric material is made, on it, circular end face is stretched out upper shell and is fixed on the top end face of union joint, the lower circular end face of described fluid-delivery valve is arranged between upper shell and lower house, and be close to the internal chamber wall of upper shell and the outer wall of lower house, described fluid-delivery valve is provided with the self-enclosed infusion channel matched with the female Luer of delivery device.
Preferably, described fluid-delivery valve is that elastic rubber material is made.
Preferably, described self-enclosed infusion channel is structure wide at the top and narrow at the bottom, and its tapering is 3.44 °, and under naturalness, described self-enclosed infusion channel is closed slot-shaped.
Preferably, described upper circular end face is provided with conical socket.
Preferably, described top end face is arc-shaped concave.
Preferably, described lower circular end face is the conical surface, and the described conical surface stretches out from axis, and tapering is 135 °.
Preferably, the described conical surface is provided with cambered surface groove.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: Needleless seal formula infusion connector, comprise upper shell, lower house, the main cavity be made up of upper shell and lower house and the fluid-delivery valve be arranged in described main cavity, described upper shell upper end is provided with union joint, described lower house lower end is provided with Rule outer cone, described fluid-delivery valve is elastomeric material, on it, circular end face stretches out the top end face that upper shell is fixed on union joint, the lower circular end face of described fluid-delivery valve is arranged between upper shell and lower house, and be close to the internal chamber wall of upper shell and the outer wall of lower house, described fluid-delivery valve is provided with the self-enclosed infusion channel matched with the female Luer of delivery device.Needleless seal formula infusion connector is made no matter to be at the transfusion state be connected with delivery device, or the closed state be not connected with delivery device, good seal can be had.
Accompanying drawing explanation
Fig. 1 is the generalized section of this utility model Needleless seal formula infusion connector;
Fig. 2 is the generalized section that this utility model Needleless seal formula infusion connector is connected with infusion set;
Fig. 3 is this utility model fluid-delivery valve self-enclosed infusion channel air-tight state generalized section;
Fig. 4 is this utility model fluid-delivery valve self-enclosed infusion channel open mode generalized section;
Fig. 5 is this utility model upper shell schematic diagram;
Fig. 6 is the surface structure schematic diagram of this utility model Needleless seal formula infusion connector.
In figure: 1: upper shell; 11: union joint; 111: top end face 2: lower house; 21: Rule outer cone; 3: main cavity; 4: fluid-delivery valve; 41: upper circular end face; 42: lower circular end face; ; 421: the conical surface; 422: cambered surface groove; 43: self-enclosed infusion channel; 44: conical socket; 5: female Luer.
Detailed description of the invention
For making the object of this utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of this utility model protection.
In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more; Except as otherwise noted, the implication of " nick shaped " is the shape except cross section is concordant.Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, only this utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
As Fig. 1, shown in Fig. 2 and Fig. 6, the Needleless seal formula infusion connector that this utility model embodiment provides, comprise upper shell 1 and lower house 2, upper shell upper end is provided with union joint, lower house lower end is provided with Rule outer cone, upper shell 1 and lower house 2 are all hollow structures, it forms main cavity 3 after connecting, fluid-delivery valve 4 is provided with in main cavity 3, the upper circular end face 41 of fluid-delivery valve 4 is stretched out upper shell 1 and is bonded on the top end face 111 of union joint 11, the lower circular end face 42 of fluid-delivery valve 4 is provided with groove, lower house 2 stretches into the groove of lower circular end face 42, lower circular end face 42 is between upper shell 1 and lower house 2, and be close to the internal chamber wall of upper shell 1 and the outer wall of lower house 2, fluid-delivery valve 4 is also provided with the self-enclosed infusion channel 43 running through whole fluid-delivery valve 4, and seal during in order to make delivery device be connected with Needleless seal formula infusion connector is better, fluid-delivery valve 4 adopts elastic rubber material, preferably, as shown in Figure 4, self-enclosed infusion channel 43 is arranged to wide at the top and narrow at the bottom, the tapering α formed is 3.44 °, the tapering of the female Luer 5 of its tapering and delivery device is fitted, when female Luer 5 is inserted, self-enclosed infusion channel 43 completely and female Luer 5 fit, make power mutual between the entirety of self-enclosed infusion channel 43 and female Luer 5 evenly, airtightly reach best.After delivery device is extracted, self-enclosed infusion channel 43 self-closed under the effect of the extruding force of elastic rubber material, closed state is slot-shaped, and stop entering of gas or other polluter, self-enclosed infusion channel 43 is normally closed passage in its natural state.
In order to further increase the seal of Needleless seal formula infusion connector, preferably, as shown in Figure 5, the top end face 111 of union joint 11 is set to arc-shaped concave, as shown in Figure 6, the upper circular end face 41 of fluid-delivery valve 4 is stretched out upper shell 1 and is bonded on the top end face 111 of union joint 11, laminating top end face 111 forms the state of wherein both sides (self-enclosed passage being applied to the both sides of closing force) higher than other both sides of fluid-delivery valve 4, and higher both sides deformation can be more severe, larger to the extruding force of self-enclosed infusion channel 43, make the seal of Needleless seal formula infusion connector better.
In order to the female Luer 5 of delivery device more easily inserts fluid-delivery valve 4, and easier deformation when being bonded on top end face 111 of the upper circular end face 41 of fluid-delivery valve 4, preferably, as shown in Figure 1, Figure 2 with shown in Fig. 6, upper circular end face 41 is provided with conical socket 44, self-enclosed infusion channel 43 is arranged in conical socket 44 and runs through whole fluid-delivery valve 4, and when fluid-delivery valve 4 bonds on top end face 111, upper circular end face 41 is V-shaped.
Be connected more convenient, firm with delivery device and transfusion catheter for convenience of Needleless seal formula infusion connector, preferably, as depicted in figs. 1 and 2, the union joint 11 of upper shell 1 is provided with the external screw thread connected for delivery device, in lower house 2, is provided with the female thread with being connected with transfusion catheter.
The female Luer 5 of delivery device is through self-enclosed infusion channel 43, by medicinal liquid by the transfusion catheter that is connected with Rule outer cone 21 of Needleless seal formula infusion connector, medicinal liquid is had in the main cavity 3 of now Needleless seal formula infusion connector, these medicinal liquids can apply power to fluid-delivery valve 4, have influence on the seal of fluid-delivery valve 4 to a certain extent, in order to reduce the impact on fluid-delivery valve 4 seal, preferably, as shown in figures 1 and 3, one end that the lower circular end face 42 of fluid-delivery valve 4 can contact with medicinal liquid is provided with the conical surface 421, the summit of the conical surface 421 is downward, the conical surface 421 extends obliquely from summit, its tapering β is 135 °, when having medicinal liquid in main cavity 3, medicinal liquid can flood the conical surface 421 by subapical part, to the self-enclosed infusion channel be arranged on fluid-delivery valve 4 43 1 power to axle center, make it airtight performance better.More preferably, the conical surface 421 arranges a cambered surface groove 422, and the summit place that the maximum diameter place of cambered surface groove 422 is arranged on the close conical surface 421 is advisable, to obtain the component in more multidirectional axle center, increases the seal of fluid-delivery valve 4.
During use, the female Luer 5 of infusion set is inserted in fluid-delivery valve 4, and self-enclosed infusion channel 43 and female Luer 5 are fitted completely, and now infusion set, Needleless seal formula infusion connector and transfusion catheter form an airtight infusion channel; When changing delivery device, extract the female Luer 5 of infusion set, self-enclosed infusion channel 43 self-closed, form a confined space, prevent gas or other polluter from entering.
In sum, the union joint top end face of the upper shell of this utility model Needleless seal formula infusion connector is arc-shaped concave, the upper circular end face of fluid-delivery valve is bonded on top end face, delivery device is more easily connected with Needleless seal formula infusion connector, and seal is better, the self-enclosed infusion channel of fluid-delivery valve is provided with the tapering fitted with female Luer, lower circular end face is provided with the conical surface, Needleless seal formula infusion connector is made no matter to be at the transfusion state be connected with delivery device, or the closed state be not connected with delivery device, can have good seal.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail this utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of this utility model.
Claims (7)
1. a Needleless seal formula infusion connector, it is characterized in that: comprise upper shell (1), lower house (2), the main cavity (3) connected and composed by upper shell (1) and lower house (2) and the fluid-delivery valve (4) be arranged in described main cavity (3), the upper end of described upper shell (1) is provided with union joint (11), the lower end of described lower house (2) is provided with Rule outer cone (21), described fluid-delivery valve (4) is made for elastomeric material, on it, circular end face (41) is stretched out upper shell (1) and is fixed on the top end face (111) of union joint (11), the lower circular end face (42) of described fluid-delivery valve (4) is arranged between upper shell (1) and lower house (2), and be close to the internal chamber wall of upper shell (1) and the outer wall of lower house (2), described fluid-delivery valve (4) is provided with the self-enclosed infusion channel (43) matched with the female Luer of delivery device.
2. Needleless seal formula infusion connector according to claim 1, is characterized in that: described fluid-delivery valve (4) is made for elastic rubber material.
3. Needleless seal formula infusion connector according to claim 1, it is characterized in that: described self-enclosed infusion channel (43) is structure wide at the top and narrow at the bottom, its tapering is 3.44 °, and under naturalness, described self-enclosed infusion channel (43) is slot-shaped for what close.
4. Needleless seal formula infusion connector according to claim 1, is characterized in that: described upper circular end face (41) is provided with downward conical socket (44).
5. Needleless seal formula infusion connector according to claim 1, is characterized in that: described top end face (111) is arc-shaped concave.
6. Needleless seal formula infusion connector according to claim 1, is characterized in that: described lower circular end face (42) is provided with the conical surface (421), and the described conical surface (421) stretches out from axis, and its tapering is 135 °.
7. Needleless seal formula infusion connector according to claim 6, is characterized in that: the described conical surface (421) is provided with cambered surface groove (422).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420619106.5U CN204181950U (en) | 2014-10-23 | 2014-10-23 | A kind of Needleless seal formula infusion connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420619106.5U CN204181950U (en) | 2014-10-23 | 2014-10-23 | A kind of Needleless seal formula infusion connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204181950U true CN204181950U (en) | 2015-03-04 |
Family
ID=52613987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420619106.5U Active CN204181950U (en) | 2014-10-23 | 2014-10-23 | A kind of Needleless seal formula infusion connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204181950U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017118246A1 (en) * | 2016-01-05 | 2017-07-13 | 胡绍勤 | Infusion connector, and infusion tube and infusion device provided with infusion connector |
| CN108014416A (en) * | 2017-12-29 | 2018-05-11 | 北京天地和协科技有限公司 | A kind of pre- aseptic infusion connector and preparation method thereof |
| CN113041441A (en) * | 2021-01-08 | 2021-06-29 | 湛江健力源医疗用品有限公司 | Closed needleless connection external connector and indwelling needle applied to same |
-
2014
- 2014-10-23 CN CN201420619106.5U patent/CN204181950U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017118246A1 (en) * | 2016-01-05 | 2017-07-13 | 胡绍勤 | Infusion connector, and infusion tube and infusion device provided with infusion connector |
| WO2017118363A1 (en) * | 2016-01-05 | 2017-07-13 | 胡绍勤 | Infusion connector, and infusion tube and infusion device provided with infusion connector |
| CN108014416A (en) * | 2017-12-29 | 2018-05-11 | 北京天地和协科技有限公司 | A kind of pre- aseptic infusion connector and preparation method thereof |
| CN113041441A (en) * | 2021-01-08 | 2021-06-29 | 湛江健力源医疗用品有限公司 | Closed needleless connection external connector and indwelling needle applied to same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202699734U (en) | Disposable safe infusion set | |
| CN204181950U (en) | A kind of Needleless seal formula infusion connector | |
| CN106730119B (en) | Needleless connector for transfusion | |
| CN103170036A (en) | Venous indwelling needle with sacculus valve | |
| CN204734799U (en) | Needleless infusion prevents that needle is kept somewhere to vein against current | |
| CN104815363B (en) | A kind of positive pressure connector | |
| CN204766842U (en) | Needleless infusion prevents that needle is kept somewhere to vein against current | |
| CN206026779U (en) | Prevent that airtight infusion of reverse -flow needleless connects | |
| CN106108919B (en) | Blood taking needle backflow preventing structure and counterflow-preventing blood taking needle | |
| CN109010990A (en) | A kind of novel infusion needleless joint | |
| CN203694241U (en) | Closed type infusion connector | |
| CN104815364B (en) | A kind of needleless connector | |
| CN203989418U (en) | A kind of modified form left heart drainage-tube | |
| CN204275115U (en) | Ascites-veno venous bypass device | |
| CN209137582U (en) | A kind of novel infusion needleless joint | |
| CN208877511U (en) | A kind of no-needle transfusion connector | |
| CN205460459U (en) | There is not extracorporal circulatory system of shearing duct connector | |
| CN206045089U (en) | A kind of resistance bacterium positive pressure remaining needle device | |
| CN205145359U (en) | Intrathoracic drain suitable for infant | |
| CN205360221U (en) | Isobaric tube clipper of constant volume of two -chamber PICC pipe | |
| CN207445281U (en) | A kind of infusion needleless joint | |
| CN206526321U (en) | Internal Medicine-Cardiovascular Dept. drainage system | |
| CN203898897U (en) | Air embolism prevention type central venous catheter | |
| CN209884899U (en) | Silica gel elastic sealing plug for positive-pressure needleless connector | |
| CN216963259U (en) | Peripherally inserted central catheter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |