CN201061639Y - Non-needle enclosed transfusion joint - Google Patents
Non-needle enclosed transfusion joint Download PDFInfo
- Publication number
- CN201061639Y CN201061639Y CNU2007201701095U CN200720170109U CN201061639Y CN 201061639 Y CN201061639 Y CN 201061639Y CN U2007201701095 U CNU2007201701095 U CN U2007201701095U CN 200720170109 U CN200720170109 U CN 200720170109U CN 201061639 Y CN201061639 Y CN 201061639Y
- Authority
- CN
- China
- Prior art keywords
- tube body
- slide core
- upper tube
- transfusion joint
- needleless
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000000295 complement effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000560 biocompatible material Substances 0.000 claims description 3
- 231100000252 nontoxic Toxicity 0.000 claims description 3
- 230000003000 nontoxic effect Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 21
- 238000001802 infusion Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000001990 intravenous administration Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 239000003146 anticoagulant agent Substances 0.000 description 3
- 229940127219 anticoagulant drug Drugs 0.000 description 3
- 230000023555 blood coagulation Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000023597 hemostasis Effects 0.000 description 2
- 229960002897 heparin Drugs 0.000 description 2
- 229920000669 heparin Polymers 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000012567 medical material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a needleless sealed transfusion mouthpiece, including an upper tube body, a lower body, a movable core and a spring. The diameter of the lower end tube of the lower tube body is smaller than that of the upper end tube of the lower tube body, an internal spiral mouthpiece is arranged at the lower end of the lower tube body of which the upper end is sleeved at the lower end of the upper tube body, a through hole is arranged in the position that a side wall of the upper tube body is positioned inside the lower tube body, forming an air passage with a lower tube body wall, the up-and-down movable core is mounted inside the upper tube body, the upper portion of the movable core matches with the upper tube body, an outer wall of the movable core is provided with a sealing circle used for being mutually sealed with the upper tube body, the lower portion of the movable core and the upper tube body form a ring space used for holding the spring, and the movable core is internally provided with T-shaped passages respectively communicated with the upper tube body and the lower tube body. The utility model is low in cost effective in preventing venous return, is safe and sanitary and is convenient in operation.
Description
Technical field
This utility model relates to a kind of infusion connector, specifically a kind ofly is used for medical aspect, but moment produce malleation, and can prevent the Needleless seal transfusion joint of venous return.
Background technology
In clinical, by venipuncture transfuse blood, the injection of transfusion or medicine is method the most frequently used in the therapeutic process.At present, domestic most ofly in the venous transfusion therapeutic process puncture for transfusion needle, restriction because of disease situation or the condition of patient own, prolonged and repeated transfusion needing can appear or the situation of medicinal liquid in liquid-transport pipe-line of will repeatedly temporarily annotating in the single transfusion, the misery that punctures and bring for fear of repeated multiple times to the patient, usually be serial connection tee T or calparine cap in the transfusion device pipeline, but above-mentioned technology exist certain defective and deficiency.The former in use will carry out partly sterilised before each the use, and wants the entry needle puncture, and this has caused certain work trouble to medical personnel and has had by the risk of pricking wound; The latter is in clinical use, usually because of some disease, patient can not use anticoagulant such as heparin and with being restricted, and do not have anticoagulant such as heparin in the calparine cap, need medical personnel behind the filling medicinal liquid, the reuse syringe not only makes operation application more loaded down with trivial details and inconvenience but also calparine cap also have the possibility that little air enters the blood circulation blood coagulation toward a certain amount of anticoagulant of the interior filling of medicated cap, has certain risk.Above-mentioned infusion process produces negative pressure probably after finishing, cause the phenomenon that blood samples of patients flows backwards.Existing infusion segment joint is made for the rubber material, and in use not only bad sterilization is easily aging, and also has the finely ground particles pollution medicinal liquid that comes off, and causes the phenomenon of patient's discomfort.
The patented technology product that has American I CU medical company to produce in the recent period " can come good fortune ", and Needleless seal transfusion joint enters the domestic market, one type CLC2000 type is arranged in its tens of kinds of products, be three end T type structures, have behind the filling medicinal liquid, when pulling out syringe or transfusion device joint, can produce the moment malleation, medicinal liquid is washed intravenous needle, preventing that blood from passing back into solidifies in the intravenous needle.But it needs three direction structures: liquid inlet, liquid outlet, exhaust end, complex structure costs an arm and a leg, and far can not satisfy the needs of numerous patients and clinical treatment.
Though more domestic infusion connectors can reach the effect of moment malleation, but complex structure, and elastic construction places in the fluid passage as spring etc., medicinal liquid must flow in patient's body through spring, increase the risk of liquid medicine contamination so undoubtedly.Also have some joints, because the airtight medicinal liquid that sternly easily do not cause leaks.
In sum, present domestic urgent need a kind of with low cost, can prevent venous return, safety and sanitation, infusion connector simple to operation.
The utility model content
But the purpose of this utility model is to provide a kind of moment to produce malleation and prevents venous return and with low cost, Needleless seal joint simple to operation.
For achieving the above object, this utility model adopts following technical scheme:
A kind of Needleless seal transfusion joint, it comprises upper tube body, lower tube body, slide core and spring; Described lower tube body lower end caliber is less than the upper end caliber, and its lower end is provided with the internal coiling interface, its upper end be sheathed on the upper tube body lower end, and the position of upper tube body sidewall in lower tube body be provided with through hole and and the lower tube body wall between form gas passage; Be provided with slide core moving up and down in the described upper tube body, this slide core top and upper tube body are complementary, its outer wall is provided with a sealing ring in order to seal mutually with upper tube body, this slide core bottom and upper tube body form an annular space in order to putting spring, and are provided with the T-shape passage in this slide core and are communicated with upper and lower body respectively.Above-mentioned a kind of Needleless seal transfusion joint, wherein, described spring housing is located at outside the slide core.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described slide core lower diameter is less than the lower tube body lower end diameter.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described upper tube body lower end and lower tube body junction are provided with the elastic sealing gasket of band through hole.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described upper tube body sidewall is provided with stop portion on the top of lower tube body upper end.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described upper tube body upper end sidewall is provided with screw thread.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, caliber is less than following caliber on the described upper tube body, and described slide core top is complementary with it, and its outer wall is embedded with large and small two sealing rings in order to seal mutually with upper tube body.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, it is protruding that described slide core top is provided with a horizontal stroke.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described upper and lower body and slide core are non-toxic biocompatible material and make.
Above-mentioned a kind of Needleless seal transfusion joint, wherein, described elastic sealing gasket and sealing ring are made for the silica gel material.
Needleless seal transfusion joint described in the utility model in use, syringe or liquid-transport pipe-line joint are connected with this utility model closed transfusion adaptor or when spinning, can be with slide core to pressing down, spring becomes compressive state, and this slide core enters in the lower tube body by the through hole on the elastic packing between upper and lower body; Horizontal protruding syringe or the infusion connector of only propping up in slide core top, make and form path between syringe or infusion connector and the slide core so that medicinal liquid flows into upper tube body from syringe, and the T-shape passage of process slide core flows into lower tube body, the lower tube body bottom can connect tube for transfusion, and medicinal liquid flows into tube for transfusion, syringe needle by lower tube body and goes into then in patient's body.After transfusion finishes, syringe or infusion connector are connected with the disconnection of this utility model Needleless seal transfusion joint, make the slide core homing that makes progress under the effect of spring restoring force, the sealing ring that the slide core external wall of upper portion is embedded seals it mutually with upper tube body top, prevents that medicinal liquid from overflowing.Continue to flow to the patient and form theoretic malleation because spring is replied the spatial liquid that makes between slide core top and the upper tube body, also backflow of hemostasis can be effectively prevented in this effect, has avoided stopping up because of blood coagulation the situation of intravenous needle passage.
Advantage of the present utility model and benefit:
Structural particular design such as this utility model slide core, spring, gas passage make this utility model in use can produce malleation moment, prevent that the blood backflow from entering intravenous needle and causing thrombosis, only avoided because the risk that use calparine cap etc. bring to the patient, it is easier that the medical worker is operated, and then increased work efficiency.This utility model can adopt the macromolecule medical material to make disposable Needleless seal joint, and not only safe and sanitary need not sterilize repeatedly or the unclean situation that occurs sterilizing, and cost is low than prior art and imported product, is fit to ordinary consumer and uses.This utility model spring places the slide core outside, not with the fluid passage joint, has avoided the situation of liquid medicine contamination to take place, and medicinal liquid is flowed in the space of independent sealing safety and enters human body, has increased the safety of transfusion.This utility model slide core outer wall is embedded with sealing ring, not only increase slide core and upper tube body seal after the use in the process on slide core, prevents liquid leakage.
Below in conjunction with accompanying drawing and preferred forms this utility model being described further, so that the public has whole and understanding fully to summary of the invention, and is not the qualification to this utility model protection domain.Aforementioned part fully discloses the protection domain that this utility model can be implemented, and therefore allly any well known in the artly is equal to replacement according to what this utility model disclosure was carried out, all belongs to infringement of the present utility model.
Description of drawings
Fig. 1 closes structural representation for this utility model;
Fig. 2 is this utility model user mode sketch map.
The specific embodiment
As shown in Figure 1 and Figure 2, a kind of Needleless seal transfusion joint, it comprises upper tube body 1, lower tube body 2, slide core 3 and spring 4; Described lower tube body 2 lower end calibers are less than the upper end caliber, and its lower end is provided with internal coiling interface 21, its upper end be sheathed on upper tube body 1 lower end, and the position of upper tube body 1 sidewall lower tube body 2 in be provided with through hole 11 and and lower tube body 2 walls between formation gas passage 5; Provided slide core 3 moving up and down in the described upper tube body 1, these slide core 3 tops and upper tube body 1 are complementary, caliber is less than following caliber on the upper tube body 1, described slide core 3 tops are complementary with it, and its outer wall is embedded with large and small two sealing rings 31,32 in order to seal mutually with two parts tube wall of upper tube body 1, these slide core 3 bottoms and upper tube body 1 form an annular space in order to putting spring 4, described spring 4 is sheathed on outside the slide core 3, and is provided with T-shape passage 33 in this slide core 3 and is communicated with upper and lower body respectively.
Above-mentioned slide core 3 lower diameter are less than lower tube body 2 lower end diameter, upper tube body 1 lower end and lower tube body 2 junctions are provided with the elastic sealing gasket 6 of band through hole 61, upper tube body 1 sidewall is provided with stop portion 12 on the top of lower tube body 2 upper ends, and upper tube body 1 upper end sidewall is provided with screw thread 13.
Above-mentioned slide core 3 tops are provided with one horizontal protruding 34.
Above-mentioned upper and lower body and slide core are non-toxic biocompatible material and make, and elastic sealing gasket and sealing ring are made for the silica gel material.
Needleless seal transfusion joint described in the utility model in use, the joint of syringe or liquid-transport pipe-line is connected with this utility model sealing joint or when spinning, can be with slide core 3 to pressing down, spring becomes compressive state, as shown in Figure 2, this slide core 3 enters in the lower tube body 2 by the through hole 61 on the elastic sealing gasket 6 of 1,2 of upper and lower bodys; Slide core 3 tops horizontal protruding 34 only prop up syringe or infusion connector, make and form path between syringe or infusion connector and the slide core 3 so that medicinal liquid flows into upper tube body 1 from syringe, and the T-shape passage 33 of process slide core 3 flows into lower tube bodies 2, lower tube body 2 bottoms can connect tube for transfusion, and medicinal liquid is gone in patient's body then by lower tube body 2 inflow tube for transfusions, syringe needle.After transfusion finishes, syringe or infusion connector are connected with the disconnection of this utility model Needleless seal transfusion joint, under the effect of spring restoring force, make upwards homing of slide core 3, it is big that slide core 3 external wall of upper portion are embedded, small sealing ring 31,32 seal it mutually with upper tube body 1 top, prevent that medicinal liquid from overflowing, because replying the spatial liquid that makes between slide core 3 tops and the upper tube body 1, spring continues to flow to inflow lower tube body 2, enter in patient's body by the tube for transfusion that is connected in lower tube body 2 lower ends then, this effect can prevent effectively that hemostasis also refluxes, and has avoided stopping up because of blood coagulation the situation of intravenous needle passage.
Claims (10)
1. a Needleless seal transfusion joint is characterized in that, it comprises upper tube body, lower tube body, slide core and spring; Described lower tube body lower end caliber is less than the upper end caliber, and its lower end is provided with the internal coiling interface, its upper end be sheathed on the upper tube body lower end, and the position of upper tube body sidewall in lower tube body be provided with through hole and and the lower tube body wall between form gas passage; Be provided with slide core moving up and down in the described upper tube body, this slide core top and upper tube body are complementary, its outer wall is provided with a sealing ring in order to seal mutually with upper tube body, this slide core bottom and upper tube body form an annular space in order to putting spring, and are provided with the T-shape passage in this slide core and are communicated with upper and lower body respectively.
2. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that described spring housing is located at outside the slide core.
3. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, described slide core lower diameter is less than the lower tube body lower end diameter.
4. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, described upper tube body lower end and lower tube body junction are provided with the elastic sealing gasket of band through hole.
5. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, described upper tube body sidewall is provided with stop portion on the top of lower tube body upper end.
6. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, described upper tube body upper end sidewall is provided with screw thread.
7. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, caliber is less than following caliber on the described upper tube body, and described slide core top is complementary with it, and its outer wall is embedded with large and small two sealing rings in order to seal mutually with upper tube body.
8. a kind of Needleless seal transfusion joint according to claim 1 is characterized in that, it is protruding that described slide core top is provided with a horizontal stroke.
9. according to any described a kind of Needleless seal transfusion joint in the claim 1 to 8, it is characterized in that described upper and lower body and slide core are non-toxic biocompatible material and make.
10. according to any described a kind of Needleless seal transfusion joint in the claim 1 to 8, it is characterized in that described elastic sealing gasket and sealing ring are made for the silica gel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201701095U CN201061639Y (en) | 2007-08-08 | 2007-08-08 | Non-needle enclosed transfusion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201701095U CN201061639Y (en) | 2007-08-08 | 2007-08-08 | Non-needle enclosed transfusion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201061639Y true CN201061639Y (en) | 2008-05-21 |
Family
ID=39450008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201701095U Expired - Fee Related CN201061639Y (en) | 2007-08-08 | 2007-08-08 | Non-needle enclosed transfusion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201061639Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961514A (en) * | 2010-10-29 | 2011-02-02 | 李丹青 | Integrated bacteria-proof needle-less airtight infusion joint |
| WO2014183272A1 (en) * | 2013-05-15 | 2014-11-20 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector connected to extracorporal indwelling catheter and having stop valve |
| CN104800079A (en) * | 2015-04-27 | 2015-07-29 | 山东威高集团医用高分子制品股份有限公司 | Sealed medicine transfer device |
| CN104815365A (en) * | 2015-05-20 | 2015-08-05 | 宁湘龙 | Medical needleless positive pressure joint |
| CN108434546A (en) * | 2018-04-16 | 2018-08-24 | 嘉兴玖海医疗科技有限公司 | A kind of Needleless injection connector |
| CN112707028A (en) * | 2020-12-29 | 2021-04-27 | 徐州医科大学 | XiLin bottle integration cap |
| CN113041452A (en) * | 2021-03-10 | 2021-06-29 | 天琴亼丝微医疗器械技术(苏州)有限公司 | Transfusion switch |
| WO2021184568A1 (en) * | 2020-03-20 | 2021-09-23 | 江苏苏云医疗器材有限公司 | Safe medicinal liquid transfer device |
-
2007
- 2007-08-08 CN CNU2007201701095U patent/CN201061639Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961514A (en) * | 2010-10-29 | 2011-02-02 | 李丹青 | Integrated bacteria-proof needle-less airtight infusion joint |
| CN101961514B (en) * | 2010-10-29 | 2012-08-22 | 李丹青 | Integrated bacteria-proof needle-less airtight infusion joint |
| WO2014183272A1 (en) * | 2013-05-15 | 2014-11-20 | 福建省百仕韦医用高分子股份有限公司 | Medical infusion connector connected to extracorporal indwelling catheter and having stop valve |
| CN104800079A (en) * | 2015-04-27 | 2015-07-29 | 山东威高集团医用高分子制品股份有限公司 | Sealed medicine transfer device |
| CN104815365A (en) * | 2015-05-20 | 2015-08-05 | 宁湘龙 | Medical needleless positive pressure joint |
| CN108434546A (en) * | 2018-04-16 | 2018-08-24 | 嘉兴玖海医疗科技有限公司 | A kind of Needleless injection connector |
| WO2021184568A1 (en) * | 2020-03-20 | 2021-09-23 | 江苏苏云医疗器材有限公司 | Safe medicinal liquid transfer device |
| CN112707028A (en) * | 2020-12-29 | 2021-04-27 | 徐州医科大学 | XiLin bottle integration cap |
| CN113041452A (en) * | 2021-03-10 | 2021-06-29 | 天琴亼丝微医疗器械技术(苏州)有限公司 | Transfusion switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201061639Y (en) | Non-needle enclosed transfusion joint | |
| CN104399145B (en) | A kind of double lumen tube self-sealing venous detaining needle | |
| CN103212154A (en) | One-way positive valve | |
| CN102188761B (en) | A kind of positive-pressure pinch valve | |
| CN201643333U (en) | Blood return preventing vein detained needle | |
| CN205832284U (en) | A kind of positive pressure needle-free infusion connector | |
| CN202682450U (en) | Positive pressure joint capable of medicating without using needle | |
| CN201061640Y (en) | Non-needle enclosed transfusion joint | |
| CN201061638Y (en) | Non-needle enclosed transfusion joint | |
| CN205948130U (en) | Non return formula is prevented embolism and is kept somewhere needle | |
| CN104826196B (en) | Liquid capsule self-sealing venous detaining needle in a kind of needle stand | |
| CN107569738A (en) | A kind of positive pressure vein remaining needle | |
| CN201179271Y (en) | One-way positive pressure valve | |
| CN201248965Y (en) | Medical connecting device | |
| CN102038986A (en) | Vein remaining needle | |
| CN202446553U (en) | Bladder irrigator for urinary surgery | |
| CN204307149U (en) | Closed positive pressure remaining needle | |
| CN205339731U (en) | Interior liquid bag of needle file is proclaimed oneself formula vein and is kept somewhere needle | |
| CN204072937U (en) | A kind of medical center venous duct tube clipper | |
| CN103418048B (en) | Needleless joint | |
| CN104998323B (en) | It is a kind of to continue slow liquid dispensing apparatus and its installation method | |
| CN204170209U (en) | Closed remaining needle | |
| CN105935460A (en) | Non-return embolism-preventing remaining needle | |
| CN207306941U (en) | A kind of automatic liquid-stopping transfusion system | |
| CN205832288U (en) | A kind of closed medicine adding device |
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: 20080521 Termination date: 20110808 |