CN209967259U - Withdrawing needleless connector - Google Patents
Withdrawing needleless connector Download PDFInfo
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- CN209967259U CN209967259U CN201920705794.XU CN201920705794U CN209967259U CN 209967259 U CN209967259 U CN 209967259U CN 201920705794 U CN201920705794 U CN 201920705794U CN 209967259 U CN209967259 U CN 209967259U
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- 238000007789 sealing Methods 0.000 claims abstract description 64
- 239000008280 blood Substances 0.000 claims abstract description 23
- 210000004369 blood Anatomy 0.000 claims abstract description 22
- 238000004159 blood analysis Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000001802 infusion Methods 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000009534 blood test Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a withdrawing needleless connector, which comprises a moving part, a connecting base and a fixing part; one end of the connecting base is connected with the moving piece, and the other end of the connecting base is fixedly connected with the fixing piece in a sealing manner; the moving part comprises a base section and a moving section; a moving section is arranged between the base section and the connecting base, and a first elastic element is sleeved between the base section and the moving section; an inner cavity is arranged between the moving section and the connecting base; the movable section is pulled to move towards the direction close to the base section so as to form negative pressure in the inner cavity, and the blood drawing examination is carried out through the formed negative pressure. The utility model discloses a needleless connector of pumpback has increased the blood examination function of pumpback on the basis of the original function of needleless connector, uses with keeping somewhere the needle cooperation, accompanies and keeps somewhere the complete life cycle of needle, makes things convenient for medical personnel to operate, reduces the use amount of disposable consumptive materials such as pre-filled formula pipe flusher, practices thrift the medical expenditure, reduces simultaneously and keeps somewhere the external port pollution risk of needle.
Description
Technical Field
The utility model relates to the field of medical equipment, more specifically say, relate to a needleless connector of pumpback.
Background
In the field of medical appliance application, a needleless connector is a common accessory of an infusion apparatus, and is often used in combination with an indwelling needle to be used as a port for injecting liquid medicine, a wash pipe and the like after puncture.
The combined instrument of the 'remaining needle + needleless connector' needs to check whether a remaining needle catheter matched with the combined instrument is unobstructed by using a blood drawing-back mode in the using process, because the needleless connector has a single function, the operation generally adopts a syringe filled with saline to connect the remaining needle, the blood drawing-back inspection is carried out through manual drawing-back, after the inspection is finished, the syringe is flushed and sealed and removed, or the syringe is flushed and then the infusion operation is carried out, but the blood drawing-back inspection needs to use disposable consumables such as a disposable syringe or a prefilled catheter flusher, the cost is high, four actions of connection, drawing-back, injection and removal are needed, the operation is complicated, short-time exposure of a port can be avoided in the remaining needle pipeline in the connection and removal processes, and the port pollution risk is increased.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a no adapter of pumpback has increased the blood test function of pumpback on the basis of the original function of no adapter, uses with keeping somewhere the needle cooperation, accompanies the complete life cycle of keeping somewhere the needle, makes things convenient for medical personnel to operate, reduces the use amount of disposable consumptive materials such as pre-filled formula catheter flusher, practices thrift the medical expenditure, reduces simultaneously and keeps somewhere the external port pollution risk of needle.
In order to achieve the above object, the utility model provides a following technical scheme:
a pumpback needleless connector comprises a moving piece, a connecting base and a fixing piece;
one end of the connecting base is connected with the moving piece, and the other end of the connecting base is fixedly connected with the fixing piece in a sealing manner;
the moving part comprises a base section and a moving section; the moving section is arranged between the base section and the connecting base, and a first elastic element is sleeved between the base section and the moving section;
an inner cavity is arranged between the moving section and the connecting base;
and the movable section is pulled to move towards the direction close to the base section so as to form negative pressure in the inner cavity, and the formed negative pressure is used for blood withdrawal examination.
Preferably, a movable space is arranged between the base section and the connecting base, and the moving section comprises a moving end;
and pulling the moving end to enable the moving section to move towards the direction close to the base section in the moving space so as to form negative pressure in the inner cavity, and performing blood drawing examination through the formed negative pressure.
Preferably, the outer side circumference of the moving section far away from the base section is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the sealing ring enables the moving section to be connected with the connecting base in a sealing manner.
Preferably, the connection base further comprises a connection cavity sleeved in the fixing piece, and the fixing piece further comprises a sealing piece; one end of the sealing element is connected with the fixing element in a sealing mode, and the other end of the sealing element is sleeved in the connecting cavity.
Preferably, a second elastic element is further arranged between the sealing element and the connecting cavity.
According to foretell technical scheme, can know, the utility model discloses in, a needleless connector of pumpback, inside appearance chamber communicates through the moving member with keeping somewhere pipe-line system, when the pulling removes the section and when the direction that is close to the pedestal section removes, can make the inside appearance chamber volume increase between removal section and the connection base, inside appearance intracavity will form certain negative pressure this moment so, can accomplish the blood inspection of pumpback, this operation can accomplish the blood inspection of pumpback through needleless connector self of pumpback of this patent, and need not external source apparatus such as external syringe, and keep somewhere pipe-line system and be in the encapsulated situation all the time, can not consequently bring the pollution, the patient uses and keeps somewhere the needle safer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a needle-less connector for drawing back according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a withdrawal needleless connector of an embodiment of the present invention;
fig. 3 is a schematic structural view of another needle-free withdrawal connector according to an embodiment of the present invention;
fig. 4 is a side cross-sectional view of another pumpback needleless connector of an embodiment of the present invention;
fig. 5 is a front cross-sectional view of another withdrawal needleless connector in accordance with an embodiment of the present invention.
Wherein the reference numbers in the figures are as follows:
1-moving part, 101-base section, 102-moving section, 103-moving end, 2-connecting base, 3-fixing part, 4-first elastic element, 5-inner cavity, 6-moving space, 7-sealing ring, 8-connecting cavity, 9-sealing part, 10-second elastic element and 11-sealing cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, fig. 1 is a schematic structural view of a needle-free connector for back suction according to an embodiment of the present invention; fig. 2 is a cross-sectional view of a withdrawal needleless connector of an embodiment of the present invention; fig. 3 is a schematic structural view of another needle-free withdrawal connector according to an embodiment of the present invention; fig. 4 is a side cross-sectional view of another pumpback needleless connector of an embodiment of the present invention; fig. 5 is a front cross-sectional view of another withdrawal needleless connector in accordance with an embodiment of the present invention.
Example one
As shown in fig. 1-2, a withdrawing needleless connector comprises a moving member 1, a connection base 2 and a fixed member 3; one end of the connecting base 2 is connected with the moving piece 1, and the other end is fixedly connected with the fixing piece 3 in a sealing way; the moving member 1 comprises a base section 101 and a moving section 102; a moving section 102 is arranged between the base section 101 and the connecting base 2, and a first elastic element 4 is sleeved between the base section 101 and the moving section 102; an inner cavity 5 is arranged between the moving section 102 and the connecting base 2. Moving member 1 with keep somewhere the pipe-line system intercommunication, thereby make and keep somewhere also intercommunication between pipe-line system and the connection base 2, when pulling moving section 102 when moving towards the direction that is close to base section 101, can make moving section 102 and connection base 2 take place relative displacement, thereby make inside appearance chamber 5 volume increase between the two, under the condition that has certain leakproofness, so internal appearance intracavity 5 will form certain negative pressure this moment, can accomplish the blood examination of drawing back, this operation only needs the needleless connector self of drawing back of this patent to accomplish the blood examination of drawing back, and need not external source apparatus such as external syringe, it is in the encapsulated situation all the time to keep somewhere the pipe-line system, can not bring the pollution consequently, the patient uses and keeps somewhere the needle safer.
Meanwhile, as the first elastic element 4 is sleeved between the moving section 102 and the base section 101, when the moving section 102 is pulled to move towards the direction close to the base section 101, the first elastic element 4 is compressed, so that when the blood drawing back inspection operation is completed, the moving section 102 is released, and at the moment, the first elastic element 4 releases elastic potential energy to recover, so that the moving section 102 is recovered to the initial state. It should be noted that the indwelling line system may be an indwelling needle, or may be a combination of an indwelling needle and an indwelling catheter, in order to enable the needle-less connector for back-suction to perform the operation of puncturing and back-blood drawing better.
In a specific embodiment of the present invention, as shown in fig. 2, an activity space 6 is disposed between the base section 101 and the connection base 2, and the moving section 102 includes a moving end 103; pulling the moving end 103 causes the moving section 102 to move in the moving space 6 toward the direction close to the base section 101, so as to form a negative pressure in the internal cavity 5, performing a blood withdrawal check by the formed negative pressure, at this time, the first elastic element 4 is compressed, and when the blood withdrawal check operation is completed, releasing the moving end 103, at this time, the first elastic element 4 releases the elastic potential energy to recover, so that the moving section 102 moves toward the direction close to the fixing member 3, so as to continue to recover to the initial state.
In a specific embodiment of the present invention, the outside circumference of the moving section 102 away from the base section 101 is provided with a sealing groove, a sealing ring 7 is provided in the sealing groove, and the sealing ring 7 makes the moving section 102 and the connection base 2 be connected in a sealing manner. In order to further increase the leakproofness of inside appearance chamber 5, offer the seal groove that is provided with sealing washer 7 through the outside circumference of the removal section 102 of keeping away from base segment 101 for remove section 102 and connection base 2 can be through sealing washer 7 sealing connection, so when the pulling is removed end 103 and is made to remove section 102 and connection base 2 production relative motion, inside appearance chamber 5 can guarantee to have better leakproofness in the volume increase, thereby be favorable to the formation of negative pressure, with the inspection of the blood of drawing back of better completion. It should be noted here that the number of the seal grooves and the seal rings 7 is not specifically limited, as long as the effect of preventing potential safety hazards and increasing stability can be achieved, and the adaptability can be adjusted according to the length of the moving section 102 or the volume of the internal cavity 5, for example, the seal grooves and the seal rings 7 are both designed as two double rings.
In an embodiment of the present invention, as shown in fig. 2, the connection base 2 further includes a connection cavity 8 sleeved in the fixing member 3, and the fixing member 3 further includes a sealing member 9; one end of the sealing element 9 is hermetically connected with the fixing element 3, and the other end is sleeved in the connecting cavity 8. The seal 9 remains stationary while blood is withdrawn, sealing off the outside of the passage and the connecting lumen 8. The fixing part 3 is of a structure without a needle joint and plays a role of communicating a valve between the retention pipeline and the infusion pipeline. The provision of the connecting chamber 8 and the sealing member 9 increases the internal tightness of the fixing member 3. The outside circumference of the junction of sealing member 9 and mounting 3 and connecting chamber 8 all is provided with the second seal groove, is provided with sealing washer 7 in the second seal groove, and sealing washer 7 makes sealing member 9 and mounting 3 and the equal sealing connection in connecting chamber 8. Here, the number of the second seal grooves and the number of the seal rings 7 are not particularly limited as long as the effects of preventing a potential safety hazard and increasing stability can be achieved, and the number can be adaptively adjusted according to the length of the fixing member 3 or the length of the connection base 2.
In an embodiment of the present invention, as shown in fig. 2, a second elastic element 10 is further disposed between the sealing member 9 and the connecting cavity 8, and one end of the second elastic element 10 abuts against the connecting cavity 8 and the other end abuts against the sealing member 9. The sealing element 9 is further provided with a sealing cavity 11, one end of the second elastic element 10 is abutted against the connecting cavity 8, and the other end of the second elastic element is abutted against the sealing cavity 11. The second sealing groove and the sealing ring 7 are arranged to seal the connection cavity 8 where the second elastic element 10 is located from the inner cavity 5.
Example two
As shown in fig. 3-5, a withdrawing needleless connector comprises a moving member 1, a connecting base 2 and a V-shaped fixing member 3; one end of the connecting base 2 is connected with the moving piece 1, and the other end is fixedly connected with the V-shaped fixing piece 3 in a sealing way; the moving member 1 comprises a base section 101 and a moving section 102; a moving section 102 is arranged between the base section 101 and the connecting base 2, and a first elastic element 4 is sleeved between the base section 101 and the moving section 102; moving member 1 with keep somewhere the pipe-line system intercommunication, set up removal section 102 between base section 101 and the connection base 2, thereby make and keep somewhere also intercommunication between pipe-line system and the connection base 2, when pulling removal section 102 when moving towards the direction that is close to base section 101, can make removal section 102 and connection base 2 take place relative displacement, thereby make the 5 increase in internal appearance chamber between the two, under the condition that has certain leakproofness, so will form certain negative pressure in the internal appearance chamber 5 this moment, can accomplish the blood examination of drawing back, this operation only needs the needleless connector self of drawing back of this patent can accomplish the blood examination of drawing back, this whole Y type can draw back needleless connector and need not external source apparatus such as external syringe, it is in encapsulated situation all the time to keep somewhere the pipe-line system, therefore can not bring the pollution, the patient uses and keeps somewhere the needle safer.
Meanwhile, as the first elastic element 4 is sleeved between the moving section 102 and the base section 101, when the moving section 102 is pulled to move towards the direction close to the base section 101, the first elastic element 4 is compressed, so that when the blood drawing back inspection operation is completed, the moving section 102 is released, and at the moment, the first elastic element 4 releases elastic potential energy to recover, so that the moving section 102 is recovered to the initial state. It should be noted here that the indwelling line system may be an indwelling needle, and may be a combination of an indwelling needle and an indwelling catheter, so that the needle-free connector increases the puncture and blood withdrawal functions.
In a specific embodiment of the present invention, as shown in fig. 4 and 5, an active space 6 is provided between the base section 101 and the connection base 2, and the moving section 102 includes a moving end 103; pulling the moving end 103 causes the moving section 102 to move in the moving space 6 toward the direction close to the base section 101, so as to form a negative pressure in the internal cavity 5, performing a blood withdrawal check by the formed negative pressure, at this time, the first elastic element 4 is compressed, and when the blood withdrawal check operation is completed, releasing the moving end 103, at this time, the first elastic element 4 releases the elastic potential energy to recover, so that the moving section 102 moves toward the direction close to the fixing member 3, so as to continue to recover to the initial state.
In a specific embodiment of the present invention, the outside circumference of the moving section 102 away from the base section 101 is provided with a sealing groove, a sealing ring 7 is provided in the sealing groove, and the sealing ring 7 makes the moving section 102 and the connection base 2 be connected in a sealing manner. In order to further increase the leakproofness of inside appearance chamber 5, offer the seal groove that is provided with sealing washer 7 through the outside circumference of the removal section 102 of keeping away from base segment 101 for remove section 102 and connection base 2 can be through sealing washer 7 sealing connection, so when the pulling is removed end 103 and is made to remove section 102 and connection base 2 production relative motion, inside appearance chamber 5 can guarantee to have better leakproofness in the volume increase, thereby be favorable to the formation of negative pressure, with the inspection of the blood of drawing back of better completion. It should be noted here that the number of the seal grooves and the seal rings 7 is not specifically limited, as long as the effect of preventing potential safety hazards and increasing stability can be achieved, and the adaptability can be adjusted according to the length of the moving section 102 or the volume of the internal cavity 5, for example, the seal grooves and the seal rings 7 are both designed as two double rings.
In a specific embodiment of the present invention, as shown in fig. 4 and 5, a sealing member 9 is further included; the sealing element 9 is sleeved in the V-shaped fixing element 3 and is connected with the V-shaped fixing element 3 in a sealing mode. The sealing element 9 is used as a sealing element of a needleless connector and plays a role of a valve for communicating the indwelling pipeline and the infusion pipeline.
To sum up, the utility model discloses a needleless connector of pumpback has increased the blood of drawing back and has examined the function on the basis that does not influence its original function, follows the whole life cycle of keeping somewhere the needle, practices thrift the relevant expense of keeping somewhere the needle nursing, and convenient operation draws back the blood and examines the in-process, keeps somewhere pipe-line system and is in the encapsulated situation all the time, can not consequently bring the pollution, and the patient uses to keep somewhere the needle safer.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The pumpback needleless connector is characterized by comprising a moving piece, a connecting base and a fixing piece;
one end of the connecting base is connected with the moving piece, and the other end of the connecting base is fixedly connected with the fixing piece in a sealing manner;
the moving part comprises a base section and a moving section; the moving section is arranged between the base section and the connecting base, and a first elastic element is sleeved between the base section and the moving section;
an inner cavity is arranged between the moving section and the connecting base;
and the movable section is pulled to move towards the direction close to the base section so as to form negative pressure in the inner cavity, and the formed negative pressure is used for blood withdrawal examination.
2. The needle-free withdrawal connector according to claim 1, wherein a movable space is provided between the base section and the connection base, and the movable section comprises a movable end;
and pulling the moving end to enable the moving section to move towards the direction close to the base section in the moving space so as to form negative pressure in the inner cavity, and performing blood drawing examination through the formed negative pressure.
3. The needle-free withdrawal connector as defined in claim 2, wherein a sealing groove is circumferentially formed on an outer side of the moving section away from the base section, and a sealing ring is arranged in the sealing groove, and the sealing ring enables the moving section to be in sealing connection with the connecting base.
4. The withdrawal needleless connector of claim 3, wherein the connection base further comprises a connection cavity that is disposed within the fixture, and the fixture further comprises a sealing member; one end of the sealing element is connected with the fixing element in a sealing mode, and the other end of the sealing element is sleeved in the connecting cavity.
5. The withdrawal needleless connector of claim 4, wherein a second resilient member is further disposed between the seal and the connection chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920705794.XU CN209967259U (en) | 2019-05-15 | 2019-05-15 | Withdrawing needleless connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920705794.XU CN209967259U (en) | 2019-05-15 | 2019-05-15 | Withdrawing needleless connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209967259U true CN209967259U (en) | 2020-01-21 |
Family
ID=69262704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920705794.XU Active CN209967259U (en) | 2019-05-15 | 2019-05-15 | Withdrawing needleless connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209967259U (en) |
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2019
- 2019-05-15 CN CN201920705794.XU patent/CN209967259U/en active Active
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200713 Address after: No.14, building 32, Jiefang East Road, Linghe District, Jinzhou City, Liaoning Province Patentee after: Yang Hui Address before: 121299 Jinzhou, Lingling City, Liaoning Province, Daling River Street office, the northern side of the 102 line, Daling River Industrial Park Patentee before: JINZHOU NUODE MEDICAL INSTRUMENT TECHNOLOGY Co.,Ltd. |