CN213552185U - Automatic safety spring type internal fistula puncture needle - Google Patents
Automatic safety spring type internal fistula puncture needle Download PDFInfo
- Publication number
- CN213552185U CN213552185U CN202021236178.3U CN202021236178U CN213552185U CN 213552185 U CN213552185 U CN 213552185U CN 202021236178 U CN202021236178 U CN 202021236178U CN 213552185 U CN213552185 U CN 213552185U
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- Prior art keywords
- needle
- connecting cylinder
- needle head
- internal fistula
- spring
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- 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
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- 206010016717 Fistula Diseases 0.000 title claims abstract description 28
- 230000003890 fistula Effects 0.000 title claims abstract description 28
- 230000006978 adaptation Effects 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 206010011409 Cross infection Diseases 0.000 abstract description 3
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 208000035049 Blood-Borne Infections Diseases 0.000 description 1
- 235000009161 Espostoa lanata Nutrition 0.000 description 1
- 240000001624 Espostoa lanata Species 0.000 description 1
- 206010073310 Occupational exposures Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 231100000675 occupational exposure Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The application provides an automatic safety spring type internal fistula puncture needle, which is applied to the field of medical instruments and comprises a needle head, a needle tube, a shell, an elastic component and a connecting cylinder; the shell is internally provided with an inner cavity, the elastic component and the connecting cylinder are arranged in the inner cavity, and the connecting cylinder is arranged between the needle head and the needle tube; two sides of the connecting cylinder are respectively sleeved on the needle head and the needle tube, and the needle head contracts in the cavity of the connecting cylinder through an elastic part; the elastic piece comprises a spring and a clamping piece; the clamping pieces are respectively arranged on the needle head and the connecting cylinder, and two ends of the spring are respectively connected with the clamping pieces on the needle head and the connecting cylinder; the clamping piece comprises a sleeve hook and a buckle plate; the technical problems that the needle tube is twisted due to wrong angle or large force, medical staff are easy to be punctured by the needle head and cross infection is caused in the pushing process which cannot be solved by the existing internal fistula puncture needle are solved.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to an automatic safety spring type internal fistula puncture needle.
Background
An internal fistula puncture needle is an indispensable medical instrument in hemodialysis treatment and mainly comprises a stainless steel puncture needle body, needle wings, a tube body, a tube buckle, a joint and the like, when the internal fistula puncture needle in the prior art is inserted into an arteriovenous internal fistula of a patient for dialysis, the tube buckle is arranged on the tube, when the internal fistula puncture needle needs to be pulled out, an operator firstly covers the puncture opening with the cotton ball, and then pulls out the internal fistula needle after pushing the pipe buckle back to the needle wing with the other hand, and then pushes the pipe buckle to completely cover the needle point, the needle tube may be twisted due to wrong angle or larger force during the pushing process, so that the needle head cannot be clamped into the tube buckle, the nursing staff can be injured by the needle due to the rebounding of the needle point or can be randomly placed in the sharps box due to the poor clamping of the needle head, the bare needle tip increases the risk of occupational exposure of medical waste disposers, causing infection and transmission of blood borne diseases.
SUMMERY OF THE UTILITY MODEL
The application aims at solving the technical problems that medical personnel are easily punctured by a needle head and cross infection is caused due to the fact that the needle tube is distorted due to angle error or force is slightly larger in the pushing process, and the automatic safe spring type internal fistula puncture needle is provided.
The application adopts the following technical means for solving the technical problems: an automatic safety spring type internal fistula puncture needle comprises a needle head, a needle tube, a shell, an elastic component and a connecting cylinder; the shell is internally provided with an inner cavity, the elastic component and the connecting cylinder are arranged in the inner cavity, and the connecting cylinder is arranged between the needle head and the needle tube;
the two sides of the connecting cylinder are respectively sleeved on the needle head and the needle tube, and the needle head is retracted in the cavity of the connecting cylinder through the elastic piece.
Furthermore, the elastic part comprises a spring and a clamping part;
the clamping pieces are respectively arranged on the needle head and the connecting cylinder, and the two ends of the spring are respectively connected with the clamping pieces on the needle head and the connecting cylinder.
Furthermore, the clamping piece comprises a sleeve hook and a buckle plate;
the sleeve hook positioned at the needle head is arranged in a hook shape, the concave part faces the needle point and is clamped with the buckle plate, the sleeve hook positioned on the connecting cylinder is arranged in a hook shape, the concave part faces the needle tube and is clamped with the buckle plate, and the two ends of the spring are connected with the two buckle plates so as to drive the needle head to shrink in the cavity of the connecting cylinder.
Further, the device also comprises a movable rod, a bracket and a control button;
the support is located on the casing, the middle-end of movable rod has the projection, have the recess with projection looks adaptation on the support, the movable rod passes through the projection card and goes into recess in the support, the movable rod uses the recess to do the rotation as the center, just the one end of movable rod colludes butt or separation with the cover of syringe needle department.
Further, the casing still includes draw-in groove and sliding block, the draw-in groove locate on the casing and wrap up in control button, the sliding block is mobilizable to be established on the draw-in groove, the post of pressing that has soft structure on the sliding block, the inboard of draw-in groove has presses the groove, the sliding block is fixed or separate through the adaptation of pressing the post and pressing the groove and draw-in groove.
Furthermore, a friction plate is arranged on the shell.
The application provides automatic safe type spring internal fistula pjncture needle has following beneficial effect: through the needle head, the needle tube, the shell, the elastic component and the connecting cylinder; the shell is internally provided with an inner cavity, the elastic component and the connecting cylinder are arranged in the inner cavity, and the connecting cylinder is arranged between the needle head and the needle tube; two sides of the connecting cylinder are respectively sleeved on the needle head and the needle tube, and the needle head contracts in the cavity of the connecting cylinder through an elastic part; the elastic piece comprises a spring and a clamping piece; the clamping pieces are respectively arranged on the needle head and the connecting cylinder, and two ends of the spring are respectively connected with the clamping pieces on the needle head and the connecting cylinder; the clamping piece comprises a sleeve hook and a buckle plate; the technical problems that the needle tube is twisted due to wrong angle or large force, medical staff are easy to be punctured by the needle head and cross infection is caused in the pushing process which cannot be solved by the existing internal fistula puncture needle are solved.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of an automated safety spring type internal fistula puncture needle according to the present application;
fig. 2 is a schematic view of an explosive structure of an embodiment of the automated safety spring type internal fistula puncture needle according to the present application;
fig. 3 is a partial structural schematic view of an embodiment of the automatic safety spring type internal fistula puncture needle.
The implementation, functional features and advantages of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It is noted that the terms "comprises," "comprising," and "having" and any variations thereof in the description and claims of this application and the drawings described above are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. In the claims, the description and the drawings of the specification of the present application, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity/action/object from another entity/action/object without necessarily requiring or implying any actual such relationship or order between such entities/actions/objects.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to the attached drawings 1-3, the structure of an automatic safety spring type internal fistula puncture needle in one embodiment of the application is shown schematically;
an automatic safety spring type internal fistula puncture needle comprises a needle head 1, a needle tube 3, a shell 2, an elastic component and a connecting cylinder 208; the shell 2 is internally provided with an inner cavity, the elastic component and the connecting cylinder 208 are arranged in the inner cavity, and the needle head 1 of the connecting cylinder 208 is arranged between the needle tube 3;
two sides of the connecting cylinder 208 are respectively sleeved on the needle head 1 and the needle tube 3, and the needle head 1 contracts in the cavity of the connecting cylinder 208 through the elastic element.
The elastic part comprises a spring and a clamping part;
the joint spare is located on syringe needle 1 and connecting cylinder 208 respectively, and the joint spare on syringe needle 1 and connecting cylinder 208 is connected respectively at the both ends of spring.
The clamping piece comprises a sleeve hook 205 and a buckle plate 210;
the sleeve hook 205 located at the needle 1 is arranged in a hook shape, the concave part of the sleeve hook 205 faces the needle point and is clamped with the buckle plate 210, the sleeve hook 205 located on the connecting cylinder 208 is arranged in a hook shape, the concave part of the sleeve hook 205 faces the needle tube 3 and is clamped with the buckle plate 210, and two ends of the spring are connected with the two buckle plates 210 to drive the needle 1 to contract in the cavity of the connecting cylinder 208.
Specifically, first set of colluding 205 is fixed on syringe needle 1 and is caught on buckle 210, second set of colluding 205 is fixed on connecting cylinder 208 and is caught on another buckle 210, the both ends of spring insert respectively on two buckles 210, the spring is in the extension state this moment, insert buckle 210 through the control and support first set of colluding 205 on the syringe needle 1 in order to prevent that first set of colluding 205 from along with the spring toward the direction motion of elasticity shrink, when needs make syringe needle 1 shrink to connecting cylinder 208 in, pull out buckle 210 through the control, first set of colluding 205 moves along with the elasticity of spring toward connecting cylinder 208's direction, make syringe needle 1 retract and insert in connecting cylinder 208, reach the purpose that syringe needle 1 retracts, prevent that the internal fistula pjncture needle from exposing in the air and arousing the infection in the recovery process, the infection risk that the refuse treater handled the internal fistula pjncture needle has also.
In one embodiment, a movable lever 204, a bracket 206, and a control button 202;
the bracket 206 is arranged on the shell 2, the middle end of the movable rod 204 is provided with a convex column, the bracket 206 is provided with a groove matched with the convex column, the movable rod 204 is clamped into the groove in the bracket 206 through the convex column, the movable rod 204 rotates by taking the groove as the center, and one end of the movable rod 204 is abutted to or separated from the sleeve hook 205 at the position of the needle head 1.
Specifically, when the movable rod 204 is clamped into the bracket 206, the 7-shaped structure at one end of the movable rod 204 is vertically clamped downwards into the buckle 210 on the needle 1, at the moment, the movable rod 204 is in an inclined state, the other end of the movable rod 204 is vertically upwards connected with the control button 202 and exposed outside the shell 2, the internal fistula puncture needle is in an original state that the needle head 1 extends out, when the medical staff pulls the needle, the control button 202 is pressed, the movable rod 204 descends at one end of the control button 202, the movable rod 204 at the end of the needle 1 is raised, and when the movable rod 204 at the end of the needle 1 is raised, the movable rod 204 is separated from the buckle 210, and at this time, the movable rod cannot abut against the first hook 205 to move the first hook 205 to the connecting cylinder 208 with the elastic force, and the first hook 205 is fixed on the needle 1 to drive the needle 1 to retract into the connecting cylinder 208, so as to achieve the purpose of retracting the needle 1.
In an embodiment, the casing 2 further includes a clamping groove 203 and a sliding block 201, the clamping groove 203 is disposed on the casing 2 and wrapped on the control button 202, the sliding block 201 is movably disposed on the clamping groove 203, a pressing column having a soft structure is disposed on the sliding block 201, a pressing groove is disposed on the inner side of the clamping groove 203, and the sliding block 201 is fixed or separated from the clamping groove 203 through the matching of the pressing column and the pressing groove.
Concretely, in order to prevent that the patient from touching down control button 202 and leading to the condition that syringe needle 1 contracts, adaptation through sliding block 201 and draw-in groove 203 makes control button 202 parcel messenger patient can not press, reaches safe effect, when medical personnel need pull out the needle, press card post 209 on the sliding block 201 and take out from draw-in groove 203, with sliding block 201 roll-off in draw-in groove 203 expose control button 202, press control button 202 again and pull out the needle, reach the purpose of pulling out the needle safely.
In one embodiment, a friction plate 207 is provided on the housing 2. In particular, the medical staff can conveniently insert the finger tightly against the friction plate 207 into the place where the patient needs to be injected.
Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An automatic safety spring type internal fistula puncture needle is characterized by comprising a needle head, a needle tube, a shell, an elastic component and a connecting cylinder; the shell is internally provided with an inner cavity, the elastic component and the connecting cylinder are arranged in the inner cavity, and the connecting cylinder is arranged between the needle head and the needle tube;
the two sides of the connecting cylinder are respectively sleeved on the needle head and the needle tube, and the needle head is retracted in the cavity of the connecting cylinder through the elastic piece.
2. The automated safety spring-loaded internal fistula puncture needle of claim 1, wherein the resilient member comprises a spring and a snap member;
the clamping pieces are respectively arranged on the needle head and the connecting cylinder, and the two ends of the spring are respectively connected with the clamping pieces on the needle head and the connecting cylinder.
3. The automated safety spring-type internal fistula puncture needle according to claim 2, wherein the clamping member comprises a sleeve hook and a buckle plate;
the sleeve hook positioned at the needle head is arranged in a hook shape, the concave part faces the needle point and is clamped with the buckle plate, the sleeve hook positioned on the connecting cylinder is arranged in a hook shape, the concave part faces the needle tube and is clamped with the buckle plate, and the two ends of the spring are connected with the two buckle plates so as to drive the needle head to shrink in the cavity of the connecting cylinder.
4. The automated safety spring-type internal fistula puncture needle according to claim 3, further comprising a movable rod, a bracket and a control button;
the support is located on the casing, the middle-end of movable rod has the projection, have the recess with projection looks adaptation on the support, the movable rod passes through the projection card and goes into recess in the support, the movable rod uses the recess to do the rotation as the center, just the one end of movable rod colludes butt or separation with the cover of syringe needle department.
5. The automatic change safe type spring internal fistula pjncture needle of claim 4, characterized in that, the casing still includes draw-in groove and sliding block, the draw-in groove locate on the casing and wrap up in control button, the movable establishment of sliding block is in on the draw-in groove, the post of pressing that has soft structure on the sliding block, the inboard of draw-in groove has presses the groove, the sliding block is fixed or separate through pressing the post and pressing the adaptation in groove and draw-in groove.
6. The automated safety spring-loaded internal fistula puncture needle of claim 1, wherein a friction plate is provided on the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021236178.3U CN213552185U (en) | 2020-06-29 | 2020-06-29 | Automatic safety spring type internal fistula puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021236178.3U CN213552185U (en) | 2020-06-29 | 2020-06-29 | Automatic safety spring type internal fistula puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213552185U true CN213552185U (en) | 2021-06-29 |
Family
ID=76550819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021236178.3U Expired - Fee Related CN213552185U (en) | 2020-06-29 | 2020-06-29 | Automatic safety spring type internal fistula puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213552185U (en) |
-
2020
- 2020-06-29 CN CN202021236178.3U patent/CN213552185U/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 |
Granted publication date: 20210629 |