CN107485757A - Novel remaining needle - Google Patents

Novel remaining needle Download PDF

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Publication number
CN107485757A
CN107485757A CN201710703443.0A CN201710703443A CN107485757A CN 107485757 A CN107485757 A CN 107485757A CN 201710703443 A CN201710703443 A CN 201710703443A CN 107485757 A CN107485757 A CN 107485757A
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CN
China
Prior art keywords
needle
sacculus
catheter
transfusion
needle tubing
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.)
Pending
Application number
CN201710703443.0A
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Chinese (zh)
Inventor
裴泽军
裴桐忻
孙欣
Original Assignee
裴泽军
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 裴泽军 filed Critical 裴泽军
Priority to CN201710703443.0A priority Critical patent/CN107485757A/en
Publication of CN107485757A publication Critical patent/CN107485757A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M2005/1588Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body having means for monitoring, controlling or visual inspection, e.g. for patency check, avoiding extravasation

Abstract

Novel remaining needle provided by the invention, belong to medical device field of structural design, the sacculus containing inside and outside two-chamber is set in liquid-transport pipe-line by designing, elastomeric bladder is set on the inside of indwelling needle tubing mouth of pipe end.Balloon lumen communicates with transfusion catheter.Sacculus exocoel fills air or safe liquid, and is communicated with elastomeric bladder.When suspending transfusion, closing clip only need to be closed.Closing clip oppresses the second transfusion catheter for closing top first, and automatic washing pipe will be realized in the transfusion push-in indwelling needle tubing in inner chamber by secondly oppressing balloon lumen, and finally oppressing exocoel makes elastomeric bladder bulging and close indwelling needle tubing.When infusing again, closing clip only need to be opened.Exocoel resilience opens indwelling needle tubing, and inner chamber resilience makes blood flow into remaining needle pipe and the first transfusion catheter, realizes automatic pumpback blood.Invention not only simplifies operation, mitigates patient's pain, reduces nurse job amount, and thoroughly solves the situation that Blood occlusion easily occurs in remaining needle, improves the safety of patient.

Description

Novel remaining needle
Technical field
The present invention relates to the field of structural design of medical supplies, more particularly to a kind of novel remaining needle.
Background technology
Remaining needle is the conventional medical apparatus in nursery work, have it is easy to use, reduce to patient puncture number effect, Punctured repeatedly during so as to decrease clinical transfusion, reduce the puncture pain of patient and the workload of clinical nursing staff, Therefore, obtained a wide range of applications in current clinic.
In existing remaining needle, generally comprise:Puncture needle, indwelling needle tubing and transfusion catheter.In use, it will puncture first Pin UNICOM indwelling needle tubing inserts the injection position of patient together, and indwelling needle tubing then is imported into patient's blood by puncturing needle guide Pipe, puncture needle is finally extracted out, indwelling needle tubing is stayed in patient vessel, and fixed with application pad pasting.In use, pass through transfusion Conduit liquid medicine injection into patient vessel.
However, existing indwelling needle tubing is retained in patient vessel, during stopping infusing, it is very easy to occur in needle tubing The situation of Blood occlusion because of blood penetration, once the situation of Blood occlusion occurs, it is necessary to re-replace indwelling needle tubing.To be pre- Occur Blood occlusion phenomenon in anti-indwelling tube to be often injected into by three-way pipe using the heparin solution or physiological saline of dilution Carry out tube sealing in indwelling needle tubing, it is relatively complicated in operation, and the effect of pre- preventing thrombosis also having time limitation, generally every 6~8 Hour just needs washing pipe tube sealing again.In addition, when re-starting transfusion, it is also necessary to using syringe pumpback blood, to judge that pipeline is It is no unobstructed.These not only increase the operation of nurse, also increase the pain of patient.
The content of the invention
For above-mentioned problem, the present invention provides a kind of novel remaining needle, can realize automatic washing pipe, automatic pipe sealing, Automatic pumpback blood, with overcome remaining needle of the prior art easily occur when in use Blood occlusion cause patient safety hidden danger, The problem of nurse operation trouble and increase patient's pain, there is Blood occlusion in the indwelling needle tubing of indwelling so as to both avoid Situation occur, in turn simplify operation, without tube sealing and pumpback blood, both add patient safety, mitigate the pain of patient, and also Simplify nurse operation.
To achieve these goals, the technical scheme taken of the present invention is:
A kind of novel remaining needle, including puncture needle, indwelling needle tubing, transfusion catheter, infusion tee and closing clip, it is described to stay Put needle tubing and be sheathed on the puncture needle, the transfusion catheter connects with the indwelling needle tubing, the infusion tee and the transfusion Conduit is connected, and the closing clip is arranged on the transfusion catheter, wherein, in addition to a sacculus with inner chamber and exocoel, institute The inner chamber for stating sacculus connects with the transfusion catheter, and the sacculus separates the transfusion catheter, the sacculus and the remaining needle This section of transfusion catheter between pipe is the first transfusion catheter;
There is tamper catheter channel in the catheter wall of first transfusion catheter, have in the needle wall of the indwelling needle tubing Have tamper needle channel, the exocoel of the sacculus connects with the tamper catheter channel, the tamper catheter channel with The tamper needle channel connection;
Elastomeric bladder, the elastomeric bladder and the tamper needle channel are provided with the inside of the mouth of pipe end of the indwelling needle tubing Connection, when the elastomeric bladder is in swelling state, the elastomeric bladder can block the mouth of pipe end of the indwelling needle tubing;
Wherein, under original state, the exocoel of the sacculus, the tamper catheter channel and the tamper needle channel In be respectively provided with air or safe liquid.
Above-mentioned novel remaining needle, wherein, this section of transfusion catheter between the sacculus and the infusion tee is second Transfusion catheter, the closing clip are arranged on second transfusion catheter.
Above-mentioned novel remaining needle, wherein, the volume of the exocoel of the sacculus is more than or equal to the elastomeric bladder and is in expansion Volume during state.
Above-mentioned novel remaining needle, wherein, the elastomeric bladder is ring-type.
Above-mentioned novel remaining needle, wherein, the cavity volume of the sacculus is more than the volume of indwelling needle tubing tube chamber.
Above-mentioned technical proposal has the following advantages that or beneficial effect:
Novel remaining needle provided by the invention sets the sacculus containing inside and outside two-chamber by designing in liquid-transport pipe-line, in indwelling Elastomeric bladder is set on the inside of needle tubing mouth of pipe end.Balloon lumen communicates with transfusion catheter.Sacculus exocoel fills air or safe liquid, And communicated with elastomeric bladder.When suspending transfusion, closing clip only need to be closed.Closing clip is oppressed first closes the second defeated of top Fluid catheter, automatic washing pipe will be realized in the transfusion push-in indwelling needle tubing in inner chamber by secondly oppressing balloon lumen, finally oppress exocoel Make elastomeric bladder bulging and close indwelling needle tubing.When infusing again, closing clip only need to be opened.Exocoel resilience makes indwelling needle tubing Open, inner chamber resilience makes blood flow into remaining needle pipe and the first transfusion catheter, realizes automatic pumpback blood.Invention not only simplifies Operation, mitigate patient's pain, reduce nurse job amount, and thoroughly solve the situation that Blood occlusion easily occurs in remaining needle, Improve the safety of patient.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting embodiments, the present invention and its feature, profile It will become more apparent with advantage, the identical mark instruction identical part in whole accompanying drawings, not deliberately proportionally Draw accompanying drawing, it is preferred that emphasis is the purport of the present invention is shown.
Fig. 1 is the structural representation for the novel remaining needle that the embodiment of the present invention 1 provides;
Fig. 2 is the balloon portion structural representation for the novel remaining needle that the embodiment of the present invention 1 provides;
Fig. 3 is the remaining needle tube portion structural representation for the novel remaining needle that the embodiment of the present invention 1 provides;
Fig. 4 is remaining needle tube portion knot of the novel remaining needle of the offer of the embodiment of the present invention 1 in the case where sacculus is stressed state Structure schematic diagram;
Fig. 5 is the structural representation for the novel remaining needle that the embodiment of the present invention 2 provides;
Fig. 6 is the balloon portion structural representation for the novel remaining needle that the embodiment of the present invention 2 provides;
Fig. 7 is the remaining needle tube portion structural representation for the novel remaining needle that the embodiment of the present invention 2 provides;
Fig. 8 is remaining needle tube portion knot of the novel remaining needle of the offer of the embodiment of the present invention 2 in the case where sacculus is stressed state Structure schematic diagram.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings, but not as the limit of the present invention It is fixed.
Embodiment 1:
Fig. 1 is the structural representation for the novel remaining needle that the embodiment of the present invention 1 provides;Fig. 2 is that the embodiment of the present invention 1 provides Novel remaining needle balloon portion structural representation;Fig. 3 is the indwelling needle tubing for the novel remaining needle that the embodiment of the present invention 1 provides Part-structure schematic diagram;Fig. 4 is indwelling needle tubing of the novel remaining needle of the offer of the embodiment of the present invention 1 in the case where sacculus is stressed state Part-structure schematic diagram;As illustrated, the novel remaining needle that the embodiment of the present invention 1 provides includes:Puncture needle 1, indwelling needle tubing 2, Transfusion catheter 3, infusion tee 4 and closing clip 5, indwelling needle tubing 2 are sheathed on puncture needle 1, and transfusion catheter 3 connects with indwelling needle tubing 2 Logical, infusion tee 4 is connected with transfusion catheter 3, and closing clip 5 is arranged on transfusion catheter 3, in addition to one has inner chamber 61 and exocoel 62 sacculus 6, the inner chamber 61 of sacculus 6 connect with transfusion catheter 3, and sacculus 6 separates transfusion catheter 3, between sacculus 6 and indwelling needle tubing This section of transfusion catheter be the first transfusion catheter 31;
There is tamper catheter channel 33 in the catheter wall of first transfusion catheter 31, have in the needle wall of indwelling needle tubing 2 Tamper needle channel 21, the exocoel 62 of sacculus 6 connect with tamper catheter channel 33, tamper catheter channel 33 and tamper Needle channel 21 connects;
Elastomeric bladder 22 is provided with the inside of the mouth of pipe end of indwelling needle tubing 2, elastomeric bladder 22 connects with tamper needle channel 21, When elastomeric bladder 22 is in swelling state, elastomeric bladder 22 can block the mouth of pipe end of indwelling needle tubing 2;
Wherein, under original state, in the exocoel 62 of sacculus 6, tamper catheter channel 33 and tamper needle channel 21 With air or safe liquid (being preferably safe liquid, or air).
In the novel remaining needle that the embodiment of the present invention 1 provides, this section of transfusion catheter between sacculus 6 and infusion tee 4 For the second transfusion catheter 32, closing clip 5 is arranged on the second transfusion catheter 32.It is arranged on the second transfusion catheter after can facilitating Continuous propulsion closing clip is to clamp the operation of sacculus.
In the novel remaining needle that the embodiment of the present invention 1 provides, the volume of the exocoel 62 of sacculus 6 is more than or equal to elastomeric bladder 22 Volume during in swelling state.It is such design cause closing clip compressing sacculus exocoel when, the safe liquid energy in it Enough elastomeric bladder is full of by tamper catheter channel and tamper needle channel so that elastomeric bladder can be good at closing remaining needle The mouth of pipe of pipe.
In the novel remaining needle that the embodiment of the present invention 1 provides, elastomeric bladder 22 is ring-type.The elastomeric bladder of ring-type causes toward it Inside rush that the process of safe liquid is more smoothly, and the mouth of pipe of closing indwelling needle tubing that can be faster and better.
In the novel remaining needle that the embodiment of the present invention 1 provides, the volume of inner chamber 61 of sacculus 6 is more than the tube chamber of indwelling needle tubing 2 Volume.
In the novel remaining needle provided using the embodiment of the present invention 1, for the first time in use, coming according to common remaining needle Operate with, when preparing to terminate to infuse for the first time, closing clip is pushed at sacculus from the second transfusion catheter, closing clip can be by ball Safe liquid in the exocoel of capsule then enters elastomeric bladder toward promoting in tamper catheter channel by tamper needle channel In, because the volume of the exocoel of sacculus is more than or equal to volume when elastomeric bladder is in swelling state, so safe liquid can be full of Elastomeric bladder so that elastomeric bladder is in swelling state, so as to close the mouth of pipe of indwelling needle tubing, meanwhile, the inner chamber of sacculus is filled with Decoction, when closing clip clamps sacculus, the decoction that can extrude in it enters by indwelling needle tubing toward flowing in the first transfusion catheter Enter human body, discharge blood that may be present in indwelling needle tubing, realize automatic washing pipe, because closing clip is oppress sacculus simultaneously outer Chamber and inner chamber, thus when decoction is pushed out flowing into human body, when decoction does not also exclude complete completely, the pipe of indwelling needle tubing Mouth will be closed by elastomeric bladder, can so avoid blood back, and then thoroughly avoid blood coagulation from causing the situation for blocking needle tubing to occur, and save Go subsequently to need to carry out the troublesome operation of washing pipe again every 6~8 hours.When that need to infuse again, closing clip only need to be opened, Exocoel resilience opens indwelling needle tubing, and inner chamber resilience makes blood flow into remaining needle pipe and the first transfusion catheter, realizes automatic pumpback Blood, without again with syringe pumpback blood to judge the unobstructed of pipeline.
The embodiment of the present invention 1 achieves noticeable achievement, no matter the plugging rate of indwelling needle tubing, the operating time of nurse's washing pipe tube sealing with And all it is greatly improved on the effective time of pre- preventing thrombosis after tube sealing and (refers to table 1).
Classification Plugging rate The washing pipe tube sealing time (S) Pre- preventing thrombosis effective time (h)
It is common that let the acupuncture needle remain at a certain point 7.83% 67±11.83 6-8
Novel remaining needle < 0.1% 3±1.5 > 24
The success data of 1 novel remaining needle embodiment of table 1 is analyzed
Embodiment 2:
Fig. 5 is the structural representation for the novel remaining needle that the embodiment of the present invention 2 provides;Fig. 6 is that the embodiment of the present invention 2 provides Novel remaining needle balloon portion structural representation;Fig. 7 is the indwelling needle tubing for the novel remaining needle that the embodiment of the present invention 2 provides Part-structure schematic diagram;Fig. 8 is indwelling needle tubing of the novel remaining needle of the offer of the embodiment of the present invention 2 in the case where sacculus is stressed state Part-structure schematic diagram;As illustrated, the novel remaining needle that the embodiment of the present invention 2 provides includes:Puncture needle 1 ', indwelling needle tubing 2 ', transfusion catheter 3 ', infusion tee 4 ' and closing clip 5 ', indwelling needle tubing 2 ' are sheathed on puncture needle 1 ', and transfusion catheter 3 ' is with staying The connection of needle tubing 2 ' is put, infusion tee 4 ' is connected with transfusion catheter 3 ', and closing clip 5 ' is arranged on transfusion catheter 3 ', in addition to a tool There is the sacculus 6 ' of inner chamber 61 ' and exocoel 62 ', the inner chamber 61 ' of sacculus 6 ' connects with transfusion catheter 3 ', and sacculus 6 ' separates transfusion catheter 3 ', this section of transfusion catheter between sacculus 6 ' and indwelling needle tubing is the first transfusion catheter 31 ';
There is tamper catheter channel 33 ' in the catheter wall of first transfusion catheter 31 ', have in the needle wall of indwelling needle tubing 2 ' There is tamper needle channel 21 ', the exocoel 62 ' of sacculus 6 ' connects with tamper catheter channel 33 ', tamper catheter channel 33 ' Connected with tamper needle channel 21 ';
Elastomeric bladder 22 ', elastomeric bladder 22 ' and tamper needle channel 21 ' are provided with the inside of the mouth of pipe end of indwelling needle tubing 2 ' Connection, when elastomeric bladder 22 ' is in swelling state, elastomeric bladder 22 ' can block the mouth of pipe end of indwelling needle tubing 2 ';
Wherein, under original state, exocoel 62 ', tamper catheter channel 33 ' and the tamper needle channel 21 ' of sacculus 6 ' In be respectively provided with air or safe liquid (being preferably safe liquid, or air).
In the novel remaining needle that the embodiment of the present invention 2 provides, this section of transfusion between sacculus 6 ' and infusion tee 4 ' is led Manage and be arranged on for the second transfusion catheter 32 ', closing clip 5 ' on the second transfusion catheter 32 '.Being arranged on can on the second transfusion catheter Follow-up propulsion closing clip is facilitated to clamp the operation of sacculus.
In the novel remaining needle that the embodiment of the present invention 2 provides, the volume of the exocoel 62 ' of sacculus 6 ' is more than or equal to elastomeric bladder 22 ' are in volume during swelling state.It is such design cause closing clip compressing sacculus exocoel when, the safe liquid in it Tamper catheter channel can be passed through and tamper needle channel is full of elastomeric bladder so that elastomeric bladder can be good at closing indwelling The mouth of pipe of needle tubing.
In the novel remaining needle that the embodiment of the present invention 2 provides, elastomeric bladder 22 ' is ring-type.The elastomeric bladder of ring-type causes past Rush that the process of safe liquid is more smoothly in it, and the mouth of pipe of closing indwelling needle tubing that can be faster and better.
In the novel remaining needle that the embodiment of the present invention 2 provides, the volume of inner chamber 61 ' of sacculus 6 ' is managed more than indwelling needle tubing 2 ' The volume of chamber.
In the novel remaining needle provided using the embodiment of the present invention 2, for the first time in use, coming according to common remaining needle Operate with, when preparing to terminate to infuse for the first time, closing clip is pushed at sacculus from the second transfusion catheter, closing clip can be first The inner chamber of sacculus is oppressed, extrudes decoction in it toward flowing in the first transfusion catheter, and enters human body by indwelling needle tubing, is then cut Only folder can then enter by the safe liquid in the exocoel of sacculus toward promoting in tamper catheter channel by tamper needle channel Enter into elastomeric bladder, because the volume of the exocoel of sacculus is more than or equal to volume when elastomeric bladder is in swelling state, so safety Liquid can be full of elastomeric bladder so that elastomeric bladder is in swelling state, so as to close the mouth of pipe of indwelling needle tubing;So avoid The backflow of blood, and then thoroughly avoid blood coagulation from causing the situation for blocking needle tubing to occur, eliminate subsequently every 6~8 hours needs The troublesome operation of washing pipe is carried out again.When that need to infuse again, closing clip need to be only opened, exocoel resilience opens indwelling needle tubing, Inner chamber resilience makes blood flow into remaining needle pipe and the first transfusion catheter, realizes automatic pumpback blood, without use again syringe pumpback blood with Judge the unobstructed of pipeline.
The embodiment of the present invention 2 achieves noticeable achievement, no matter the plugging rate of indwelling needle tubing, the operating time of nurse's washing pipe tube sealing with And all it is greatly improved on the effective time of pre- preventing thrombosis after tube sealing and (refers to table 2).
Classification Plugging rate The washing pipe tube sealing time (S) Pre- preventing thrombosis effective time (h)
It is common that let the acupuncture needle remain at a certain point 7.83% 67±11.83 6-8
Novel remaining needle < 0.08% 2±1.5 > 24
The success data of 2 novel remaining needle embodiment of table 2 is analyzed
In summary, novel remaining needle provided in an embodiment of the present invention is set containing inside and outside double by designing in liquid-transport pipe-line The sacculus of chamber, elastomeric bladder is set on the inside of indwelling needle tubing mouth of pipe end.Balloon lumen communicates with transfusion catheter.Sacculus exocoel is filled Air or safe liquid, and communicated with elastomeric bladder.When suspending transfusion, closing clip only need to be closed.Closing clip is oppressed first Second transfusion catheter on top is closed, automatic punching will be realized in the transfusion push-in indwelling needle tubing in inner chamber by secondly oppressing balloon lumen Pipe, finally oppressing exocoel makes elastomeric bladder bulging and closes indwelling needle tubing.When infusing again, closing clip only need to be opened.Outside Chamber resilience opens indwelling needle tubing, and inner chamber resilience makes blood flow into remaining needle pipe and the first transfusion catheter, realizes automatic pumpback blood. Invention not only simplifies operation, mitigates patient's pain, reduces nurse job amount, and thoroughly solve remaining needle and easily occur The situation of Blood occlusion, improve the safety of patient.
It should be appreciated by those skilled in the art that those skilled in the art combine prior art and above-described embodiment can be real The existing change case, will not be described here.Such change case has no effect on the substantive content of the present invention, will not be described here.
Presently preferred embodiments of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned Feature embodiment, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this area Apply;Any those skilled in the art, many possible changes and modifications are made not departing from technical solution of the present invention, or The equivalent embodiment of equivalent variations is revised as, this has no effect on the substantive content of the present invention, therefore, every without departing from skill of the present invention The content of art scheme, the technical spirit according to the present invention to any simple modification made for any of the above embodiments, equivalent variations and are repaiied Decorations, belong in the range of technical solution of the present invention protection.

Claims (5)

1. a kind of novel remaining needle, including puncture needle, indwelling needle tubing, transfusion catheter, infusion tee and closing clip, the indwelling Needle tubing is sheathed on the puncture needle, and the transfusion catheter connects with the indwelling needle tubing, and the infusion tee is led with the transfusion Pipe is connected, and the closing clip is arranged on the transfusion catheter, it is characterised in that also including a ball with inner chamber and exocoel Capsule, the inner chamber of the sacculus connect with the transfusion catheter, and the sacculus separates the transfusion catheter, and the sacculus stays with described It is the first transfusion catheter to put this section of transfusion catheter between needle tubing;
There is tamper catheter channel in the catheter wall of first transfusion catheter, have in the needle wall of the indwelling needle tubing stifled Plug thing needle channel, the exocoel of the sacculus connect with the tamper catheter channel, the tamper catheter channel with it is described Tamper needle channel connects;
Elastomeric bladder is provided with the inside of the mouth of pipe end of the indwelling needle tubing, the elastomeric bladder connects with the tamper needle channel Logical, when the elastomeric bladder is in swelling state, the elastomeric bladder can block the mouth of pipe end of the indwelling needle tubing;
Wherein, under original state, in the exocoel of the sacculus, the tamper catheter channel and the tamper needle channel With air or safe liquid.
2. novel remaining needle as claimed in claim 1, it is characterised in that this section between the sacculus and the infusion tee Transfusion catheter is the second transfusion catheter, and the closing clip is arranged on second transfusion catheter.
3. novel remaining needle as claimed in claim 1, it is characterised in that the volume of the exocoel of the sacculus is more than or equal to described Elastomeric bladder is in volume during swelling state.
4. novel remaining needle as claimed in claim 1, it is characterised in that the elastomeric bladder is ring-type.
5. novel remaining needle as claimed in claim 1, it is characterised in that the cavity volume of the sacculus is more than indwelling needle tubing pipe The volume of chamber.
CN201710703443.0A 2017-08-16 2017-08-16 Novel remaining needle Pending CN107485757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710703443.0A CN107485757A (en) 2017-08-16 2017-08-16 Novel remaining needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710703443.0A CN107485757A (en) 2017-08-16 2017-08-16 Novel remaining needle

Publications (1)

Publication Number Publication Date
CN107485757A true CN107485757A (en) 2017-12-19

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Application Number Title Priority Date Filing Date
CN201710703443.0A Pending CN107485757A (en) 2017-08-16 2017-08-16 Novel remaining needle

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109091752A (en) * 2018-09-19 2018-12-28 华蓥市明月镇小学 A kind of disposable infusion connector
CN109276773A (en) * 2018-09-19 2019-01-29 华蓥市明月镇小学 A kind of novel remaining needle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109091752A (en) * 2018-09-19 2018-12-28 华蓥市明月镇小学 A kind of disposable infusion connector
CN109276773A (en) * 2018-09-19 2019-01-29 华蓥市明月镇小学 A kind of novel remaining needle

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