CN215134839U - Safety remaining needle with separation membrane joint - Google Patents
Safety remaining needle with separation membrane joint Download PDFInfo
- Publication number
- CN215134839U CN215134839U CN202120458223.8U CN202120458223U CN215134839U CN 215134839 U CN215134839 U CN 215134839U CN 202120458223 U CN202120458223 U CN 202120458223U CN 215134839 U CN215134839 U CN 215134839U
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- China
- Prior art keywords
- needle
- shell
- pipeline
- wall
- membrane
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- Expired - Fee Related
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 34
- 238000000926 separation method Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 7
- 238000001802 infusion Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 239000008280 blood Substances 0.000 abstract description 4
- 210000004369 blood Anatomy 0.000 abstract description 4
- 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 abstract description 2
- 229960002897 heparin Drugs 0.000 abstract description 2
- 229920000669 heparin Polymers 0.000 abstract description 2
- 244000052769 pathogen Species 0.000 abstract 1
- 230000001717 pathogenic effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 208000012266 Needlestick injury Diseases 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000014951 hematologic disease Diseases 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a safe indwelling needle with a separation membrane joint, belonging to the field of infusion medical equipment. The needle comprises a separation membrane joint, a needle component and a needle recovery component, wherein the separation membrane joint is connected with the needle component through an extension tube, and the needle component is connected with the needle recovery component through a buckle; both ends of the separation membrane joint are connected in a spiral manner in the using process; the needle recovery assembly comprises a second shell, a rotating disk and a fixing plate, one end of the second shell is connected with the tail end of a third pipeline of the transparent tee joint, the other end of the second shell is connected with a rotating chuck, and the rotating chuck is clamped on the outer wall of the second shell. The utility model discloses, adopt needleless connector, reduce repetitious usage syringe needle puncture heparin cap, reduce the interface and infect the incidence, syringe needle recovery unit has avoided the propagation of blood source nature pathogen simultaneously, has protected medical staff's safety.
Description
Technical Field
The utility model relates to the field of infusion medical equipment, in particular to a safe indwelling needle with a separation membrane joint.
Background
In the medical treatment process, in order to enable patients to recover quickly and effectively, a doctor inserts an indwelling needle into the body of the patient, and related medical and nutrient liquid is injected into the vein to achieve a better medical effect. However, the existing indwelling needle has two disadvantages, on one hand, after the needle core is pulled out, because the needle point is not provided with a protection device, a nurse has the danger of being pricked by the needle point, and can be infected with certain blood diseases; on the other hand, the existing indwelling needle infusion joint end mostly adopts a heparin cap to inject liquid, so that particles are easily caused to enter an infusion system by puncturing for many times in the operation process, and the tube sealing process is clamped by a flow stopping clamp to prevent blood return.
Disclosure of Invention
The utility model provides a needle is kept somewhere to safety with separation membrane connects has solved many times of punctures in the injection process and has caused the particle to get into infusion system, causes the problem of infection, has still solved simultaneously behind the puncture skin, and the syringe needle exposes outside, causes the nurse to be wounded by the acupuncture danger to the problem of infectious diseases.
In order to achieve the above object, the utility model provides a following technical scheme: a safe indwelling needle with a separation membrane joint comprises a separation membrane joint, a needle head assembly and a needle head recovery assembly;
the separation membrane joint comprises a membrane and a first shell, the first shell is provided with an output end and an injection end, the output end is connected with an extension tube, and the membrane is positioned at the port of the injection end;
the needle head assembly comprises a needle tube, a catheter needle, a transparent tee joint, an isolation plug, a needle holding handle and a notch needle seat, wherein the transparent tee joint is of a Y-shaped structure and comprises a first pipeline, a second pipeline and a third pipeline, the tail end of the catheter needle is connected with the first pipeline of the transparent tee joint, the notch needle seat and the isolation plug are located inside the third pipeline of the transparent tee joint, the isolation plug is located at the front end of the notch needle seat, the notch needle seat is internally buckled at the tail end of the third pipeline, the notch needle seat and the needle holding handle are of an integrated structure, the needle holding handle is located on one side of the transparent tee joint, the tail end of the needle tube is fixed in the notch needle seat, the catheter needle is sleeved at the front end of the needle tube and located outside the port of the first pipeline of the transparent tee joint, and a buckle is arranged on the outer wall of the third pipeline of the transparent tee joint;
the needle recovery assembly comprises a second shell, a rotating disk and a fixing plate, one end of the second shell is connected with the tail end of a third pipeline of the transparent tee joint, the other end of the second shell is connected with a rotating chuck, and the rotating chuck is clamped on the outer wall of the second shell.
Preferably, the inner wall of one end of the first shell connected with the extension pipe is provided with a thread structure, and the outer wall of the injection end is provided with a thread structure.
Preferably, the surface of the membrane at the injection end is a smooth curved surface, liquid can only flow to the other end of the membrane from the curved surface of the membrane at the injection end, and the membrane is automatically closed after the liquid flows through the membrane.
Preferably, the transparent tee joint second pipeline is connected with an extension pipe.
Preferably, the second casing is a cylinder type casing, the needle file is located second shells inner wall, a long recess has been seted up to second casing lateral wall, long recess with hold needle handle block, hold needle handle level and smooth slip in long recess, long recess end has a chucking mechanism, it is fixed to hold needle handle slip chucking mechanism, second casing upper end outer wall is equipped with an L type recess, link to each other with L type recess and buckle.
Preferably, the clamping mechanism is of a symmetrical structure and comprises an L-shaped baffle, a supporting shaft, a pressing sheet and a compression spring, the L-shaped baffle is fixed on the outer wall of the second shell and is perpendicular to the outer wall of the second shell, the supporting shaft is fixed between the outer wall of the second shell and the L-shaped baffle, the pressing sheet is hinged to the supporting shaft, one end of the compression spring is fixed on the other side of the L-shaped baffle, and the other end of the compression spring is fixed on the back of the pressing sheet.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, the injection can only flow from the injection end to the other end through the one-way conduction of the diaphragm in the separation diaphragm joint component, and the diaphragm is automatically closed after the injection is finished, thereby effectively realizing the sealing effect; meanwhile, the first shell adopts a spiral connector at the injection end, and the connector is matched with an infusion apparatus sold in the market, a needle head is not needed in the using process, and only needs to be screwed, so that the occurrence of needle stick injury is avoided.
2. The utility model discloses in, retrieve the second casing in the subassembly through the syringe needle, can make the needle tubing after the puncture can effectively protect, long recess through second casing lateral wall with hold the needle handle and link to each other, can make during the needle tubing smooth slip in the second casing, chucking mechanism through the below, can be with the automatic end of fixing at long recess of needle tubing, rotatory second casing of rethread itself, make the second casing break away from with transparent tee bend, retrieve the needle tubing at last, can effectively avoid the nurse to be hindered by the needle-prick in operation process, thereby reduce the danger coefficient who infects blood nature disease.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural view of a certain viewing angle of the present invention;
FIG. 2 is a cross-sectional view of a split-membrane joint of the present invention;
FIG. 3 is a schematic view of the needle assembly of the present invention;
FIG. 4 is a schematic view of the needle retraction assembly of the present invention;
FIG. 5 is a partially enlarged schematic view of the needle recovery assembly of the present invention;
reference numbers in the figures: 1. a needle tube; 2. a catheter needle; 3. a transparent tee joint; 301. a first conduit; 302. a second conduit; 303. a third pipeline; 304. buckling; 305. an isolation plug; 401. a needle holding handle; 402. a notch needle base; 5. an extension tube; 6. a first housing; 601. an output end; 602. an injection end; 7. a diaphragm; 8. a second housing; 801. a long groove; 802. rotating the chuck; 803. tabletting; 804. an L-shaped groove; 805. a compression spring; 806. an L-shaped baffle plate; 807. a support shaft; 9. and (4) a flow stopping clamp.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in figures 1-5, the safety indwelling needle with the separating membrane joint comprises a separating membrane joint, a needle head component and a needle head recovery component;
the separation membrane joint comprises a membrane 7 and a first shell 6, the first shell 6 is provided with an output end 601 and an injection end 602, wherein the port of the output end 601 is connected with the extension pipe 5, and the membrane 7 is positioned at the port of the injection end 602;
the needle head assembly comprises a needle tube 1, a catheter needle 2, a transparent tee joint 3, an isolating plug 305, a needle holding handle 401 and a notch needle holder 402, wherein the transparent tee joint 3 is of a Y-shaped structure and comprises a first pipeline 301, a second pipeline 302 and a third pipeline 303, the tail end of the catheter needle 2 is connected with the first pipeline 301, the notch needle holder 402 and the isolating plug 305 are located inside the third pipeline 303, the isolating plug 305 is located at the front end of the notch needle holder 402, the notch needle holder 402 is internally buckled at the tail end of the third pipeline 303, the notch needle holder 402 and the needle holding handle 401 are of an integrated structure, the needle holding handle 401 is located on one side of the transparent tee joint 3, the tail end of the needle tube 1 is fixed in the notch needle holder 402, the catheter needle 2 is sleeved at the front end of the needle tube 1, the catheter needle 2 is located outside a port of the first pipeline 301, and a buckle 304 is arranged on the outer wall of the third pipeline 303;
the needle recovery assembly comprises a second shell 8 and a rotary chuck 802, one end of the second shell 8 is connected with the tail end of a third pipeline 303, the other end of the second shell 8 is connected with the rotary chuck 802, and the rotary chuck 802 is clamped on the outer wall of the second shell 8.
Specifically, the inner wall of one end of the first shell 6 connected with the extension pipe 5 is provided with a thread structure, and the outer wall of the injection end 602 is provided with a thread structure.
Specifically, the surface of the diaphragm 7 at the injection end 602 is a smooth curved surface, so that the liquid can only flow from the curved surface of the diaphragm 7 at the injection end 602 to the other end of the diaphragm 7, and the diaphragm 7 automatically closes after the liquid flows through the diaphragm 7.
In particular, the second conduit 302 is connected to the extension pipe 5.
Specifically, second casing 8 is a cylinder type casing, notch needle file 402 is located second casing 8 inner wall, a long recess 801 has been seted up to second casing 8 lateral wall, long recess 801 with hold needle handle 401 block, hold needle handle 401 smooth sliding in long recess 801, there is a chucking mechanism long recess 801 end, it is fixed to hold needle handle 401 slip chucking mechanism, second casing 8 upper end outer wall is equipped with an L type recess 804, L type recess 801 links to each other with buckle 304.
Specifically, the clamping mechanism is of a symmetrical structure and comprises an L-shaped baffle 806, a support shaft 807, a pressing plate 803 and a compression spring 805, wherein the L-shaped baffle 806 is fixed on the outer wall of the second shell 8, the L-shaped baffle 806 is perpendicular to the outer wall of the second shell 8, the support shaft 807 is fixed between the outer wall of the second shell 8 and the L-shaped baffle 806, the pressing plate 803 is hinged to the support shaft 807, one end of the compression spring 805 is fixed on the other side of the L-shaped baffle 806, and the other end of the compression spring 805 is fixed on the back of the pressing plate 803.
In the utility model, when the needle cannula is used, after the puncture is finished, the needle handle 401 is held by one hand, the transparent tee joint 3 is held by the other hand, then the needle handle 401 is slowly withdrawn along the long groove 801, so that the catheter needle 2 is left in the blood vessel, the needle cannula 1 is withdrawn into the second shell 8 in the needle head recovery assembly until the needle handle 401 reaches the clamping mechanism at the end of the long groove 801, due to the thrust action, the needle handle 401 is pushed away to push the two pressing sheets 803 to be slid into the tail end of the long groove 801, after the needle handle 401 completely passes through the pressing sheets 803, the pressing sheets 803 are in positive contact under the elastic force of the compression spring 805, so as to achieve the sealing effect, so that the needle handle 401 can not slide out as it is, and can only be fixed at the bottom end of the long groove 801, then the second shell 8 is rotated, the buckle 304 is screwed to the L-shaped groove 804, so that the second shell 8 is separated from the transparent tee joint 3, thereby realizing the safe recovery work of the needle cannula 1, when the used needle tube 1 needs to be taken out, the needle tube 1 can slide out from the tail end of the second shell 8 only by rotating and pulling out the rotating disc 802 at the bottom of the second shell 8, so that the used needle tube 1 is obtained. When medical liquid or nutrient solution needs to be injected, firstly, the split injection end 602 is disinfected, then the injector is screwed into the threaded opening of the injection end 602, and the liquid is injected from the smooth curved surface of the diaphragm 7 of the injection end 602 through the pushing action, so that the liquid can only flow to the output end 601 due to the one-way conductivity of the diaphragm 7, when the injection is stopped, the diaphragm 7 is automatically closed, no gap exists on the surface of the diaphragm 7, bacteria are not easy to implant, and the infection chance is reduced; when the tube is sealed, the flow stopping clamp 9 is used for assisting tube sealing, and the instant positive pressure which can automatically push liquid to the direction of the blood vessel is generated after the syringe or the infusion apparatus is screwed out according to the positive pressure principle of the separation membrane, so that the blockage caused by the blood backflow catheter needle 2 is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a needle is kept somewhere to safety with divider connects which characterized in that: comprises a separation membrane joint, a needle assembly and a needle recovery assembly;
the separation membrane joint comprises a membrane and a first shell, the first shell is provided with an output end and an injection end, the output end is connected with an extension tube, and the membrane is positioned at the port of the injection end;
the needle head assembly comprises a needle tube, a catheter needle, a transparent tee joint, an isolation plug, a needle holding handle and a notch needle seat, wherein the transparent tee joint is of a Y-shaped structure and comprises a first pipeline, a second pipeline and a third pipeline, the tail end of the catheter needle is connected with the first pipeline of the transparent tee joint, the notch needle seat and the isolation plug are located inside the third pipeline of the transparent tee joint, the isolation plug is located at the front end of the notch needle seat, the notch needle seat is internally buckled at the tail end of the third pipeline, the notch needle seat and the needle holding handle are of an integrated structure, the needle holding handle is located on one side of the transparent tee joint, the tail end of the needle tube is fixed in the notch needle seat, the catheter needle is sleeved at the front end of the needle tube and located outside the port of the first pipeline of the transparent tee joint, and a buckle is arranged on the outer wall of the third pipeline of the transparent tee joint;
the needle recovery assembly comprises a second shell and a rotating disc, one end of the second shell is connected with the tail end of a third pipeline of the transparent tee joint, the other end of the second shell is connected with a rotating chuck, and the rotating chuck is clamped on the outer wall of the second shell.
2. The safety indwelling needle with a septum connector according to claim 1, wherein: the inner wall of one end of the first shell connected with the extension pipe is provided with a thread structure, and the outer wall of the injection end is provided with a thread structure.
3. The safety indwelling needle with a septum connector according to claim 1, wherein: the surface of the membrane at the injection end is a smooth curved surface, liquid can only flow to the other end of the membrane from the curved surface of the membrane at the injection end, and the membrane is automatically closed after the liquid flows through the membrane.
4. The safety indwelling needle with a septum connector according to claim 1, wherein: and the second pipeline of the transparent tee joint is connected with an extension pipe.
5. The safety indwelling needle with a septum connector according to claim 1, wherein: the second casing is a cylinder type casing, the needle file is located second shells inner wall, a long recess has been seted up to second casing lateral wall, long recess and needle handle block, hold needle handle smooth slip in long recess, long recess end has a chucking mechanism, it is fixed to hold needle handle slip chucking mechanism, second casing upper end outer wall is equipped with an L type recess, link to each other with L type recess and buckle.
6. The safety indwelling needle with a septum connector according to claim 5, wherein: the clamping mechanism is of a symmetrical structure and comprises an L-shaped baffle, a supporting shaft, a pressing sheet and a compression spring, the L-shaped baffle is fixed on the outer wall of the second shell, the L-shaped baffle is perpendicular to the outer wall of the second shell, the supporting shaft is fixed between the outer wall of the second shell and the L-shaped baffle, the pressing sheet is hinged to the supporting shaft, one end of the compression spring is fixed on the other side of the L-shaped baffle, and the other end of the compression spring is fixed on the back of the pressing sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120458223.8U CN215134839U (en) | 2021-03-03 | 2021-03-03 | Safety remaining needle with separation membrane joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120458223.8U CN215134839U (en) | 2021-03-03 | 2021-03-03 | Safety remaining needle with separation membrane joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215134839U true CN215134839U (en) | 2021-12-14 |
Family
ID=79413495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120458223.8U Expired - Fee Related CN215134839U (en) | 2021-03-03 | 2021-03-03 | Safety remaining needle with separation membrane joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215134839U (en) |
-
2021
- 2021-03-03 CN CN202120458223.8U patent/CN215134839U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |