CN220898763U - Detachable arteriovenous internal fistula puncture blood taking needle - Google Patents
Detachable arteriovenous internal fistula puncture blood taking needle Download PDFInfo
- Publication number
- CN220898763U CN220898763U CN202321889599.XU CN202321889599U CN220898763U CN 220898763 U CN220898763 U CN 220898763U CN 202321889599 U CN202321889599 U CN 202321889599U CN 220898763 U CN220898763 U CN 220898763U
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- puncture
- needle
- hose
- head
- blood taking
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- 239000008280 blood Substances 0.000 title claims abstract description 77
- 210000004369 blood Anatomy 0.000 title claims abstract description 77
- 206010016717 Fistula Diseases 0.000 title claims abstract description 30
- 230000003890 fistula Effects 0.000 title claims abstract description 30
- 238000012546 transfer Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000010241 blood sampling Methods 0.000 claims description 23
- 206010003226 Arteriovenous fistula Diseases 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000001631 haemodialysis Methods 0.000 abstract description 10
- 230000000322 hemodialysis Effects 0.000 abstract description 10
- 230000004087 circulation Effects 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 238000000502 dialysis Methods 0.000 description 6
- 206010011409 Cross infection Diseases 0.000 description 5
- 206010029803 Nosocomial infection Diseases 0.000 description 5
- 210000004204 blood vessel Anatomy 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 210000003462 vein Anatomy 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000003872 anastomosis Effects 0.000 description 1
- 230000008321 arterial blood flow Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Abstract
The utility model provides a detachable arteriovenous internal fistula puncture blood taking needle which comprises an internal fistula puncture mechanism and an internal fistula blood taking mechanism, wherein the internal fistula puncture mechanism comprises a puncture hose with a puncture needle head fixed at the head end, a puncture needle wing fixed at the joint of the puncture hose and the puncture needle head, a puncture needle protecting sleeve arranged outside the puncture needle head, a liquid stopping clamp and a puncture needle sheath for covering the puncture needle head are movably sleeved on the puncture hose, a straight pipe with a handle is fixed at the tail end of the puncture hose, a transfer tube head is detachably connected at the tail end of the straight pipe with the handle, the internal fistula blood taking mechanism comprises a blood taking hose with the transfer needle head fixed at the head end, the transfer needle head is connected on a rubber sealing plug in the transfer tube head in a pluggable manner, a transfer needle wing is fixed at the outer wall of the joint of the blood taking hose, the blood taking needle head is fixed at the tail end of the blood taking hose, an elastic sleeve is fixed outside the blood taking needle head, and a protecting cap is arranged outside the elastic sleeve. The utility model can establish extracorporeal circulation to realize hemodialysis and better collection of blood samples.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a detachable arteriovenous fistula puncture blood taking needle.
Background
Arteriovenous fistula is one of the surgical procedures and is mainly used for hemodialysis treatment. An arteriovenous fistula is a small operation of vascular anastomosis, which is characterized in that an artery near the wrist of a forearm and an adjacent vein are sutured, namely, the artery and the vein are sutured together, arterial blood flows in the anastomosed vein, and an arteriovenous fistula is formed, so that the vein can better treat the blood quantity returned into the body, and the dialysis is facilitated. The blood vessel of the arteriovenous fistula can provide sufficient blood for hemodialysis treatment and guarantee the sufficiency of the dialysis treatment.
At present, an arteriovenous internal fistula puncture needle of a hemodialysis patient is only used for establishing extracorporeal circulation during dialysis treatment, if a blood sample needs to be collected before or/and during the dialysis treatment of the patient, an injector is usually connected to the internal fistula puncture needle, and then blood collected in the injector is respectively injected into a corresponding blood sampling test tube or directly enters an outpatient clinical laboratory to leave the blood sample. However, the inventor of the application finds that in the process of carrying out blood collection and dispensing to the corresponding blood collection test tube by using the injector through clinical nursing, the hand pollution of nurses caused by pollution or splashing of blood samples is unavoidable, and the cross infection probability is increased; the blood sample is directly taken to an outpatient clinical laboratory, so that the whole blood sampling process has more operation links, and the operation is particularly painful for some patients with long-term bedridden mobility inconvenience.
Disclosure of utility model
Aiming at the existing arteriovenous internal fistula puncture needle for collecting blood samples, the internal fistula puncture needle is connected with an injector for blood collection, and in the process of dispensing into a corresponding blood collection test tube, the hand pollution of nurses caused by pollution or splashing of the blood samples is avoided, so that the cross infection probability is increased; the utility model provides a detachable arteriovenous fistula puncture blood taking needle, which is used for directly taking a blood sample from an outpatient clinical laboratory, has more operation links in the whole blood taking process and is particularly painful for patients with inconvenient long-term bedridden movement.
In order to solve the technical problems, the utility model adopts the following technical scheme:
The utility model provides a detachable arteriovenous internal fistula puncture blood taking needle, includes internal fistula puncture mechanism and internal fistula blood taking mechanism, internal fistula puncture mechanism includes the puncture hose, the head end fixedly connected with puncture syringe needle of puncture hose, the fixed needle wing that has cup jointed of junction outer wall of puncture hose and puncture syringe needle, the puncture syringe needle is equipped with the pjncture needle protective sheath outward, movable cover is equipped with the liquid that ends clamp and carries out the puncture needle and wrap up the needle and prevent the puncture sheath, the tail end fixedly connected with handle straight tube of puncture hose, the tail end of handle straight tube can be dismantled and be connected with the adapter tube head, the adapter tube head includes the cylindricality outer tube of detachable connection with handle straight tube tail end, the tail end integrated into one piece of cylindricality outer tube has the sealing block, integrated into one piece has the cylindricality inner tube that extends to cylindricality outer tube head end and outer wall and handle straight tube inner wall in close contact, be equipped with the rubber seal plug that seals cylindricality inner tube intermediate passage on the inner wall; the internal fistula blood sampling mechanism comprises a blood sampling hose, the head end of the blood sampling hose is fixedly connected with a transfer needle head, the transfer needle head is connected to a rubber seal plug in a pluggable manner, a transfer needle wing is fixedly sleeved on the outer wall of the joint of the blood sampling hose and the transfer needle head, the tail end of the blood sampling hose is fixedly connected with the blood sampling needle head, an elastic sleeve is fixedly sleeved on the outer side of the blood sampling needle head, and a protective cap is arranged outside the elastic sleeve.
Compared with the prior art, when the detachable arteriovenous fistula puncture blood taking needle provided by the utility model is used for taking blood and puncturing, on one hand, medical staff firstly opens the liquid stopping clamp on the puncture hose, then takes the puncture needle protecting sleeve off, pierces the puncture needle head into a blood taking test tube, then takes the protecting cap off, inserts the blood taking needle head into the blood taking test tube, and utilizes the combination of negative pressure in the blood taking test tube and positive pressure in the blood taking test tube to automatically flow blood of a patient into the blood taking test tube so as to realize blood sample collection, so that the blood taking process is carried out in a closed environment, the hand pollution of nurses caused by pollution or splashing of blood samples is avoided, the cross infection probability is greatly reduced, and the operation link of the whole blood taking process is less, so that the detachable arteriovenous fistula puncture blood taking needle is particularly convenient for patients with inconvenient movement in long-term bed; on the other hand, when the dialysis and puncture work is carried out after blood collection is finished, medical staff pulls out the switching needle head from the rubber sealing plug, and removes the switching tube head from the tail end of the straight tube with the handle, then connects the tail end of the puncture hose with the existing hemodialysis pipeline, then opens the liquid stopping clamp on the puncture hose, and then pierces the blood vessel of a patient with the puncture needle head after the puncture needle protective sleeve is removed to establish extracorporeal circulation to realize hemodialysis. Therefore, the utility model not only can establish extracorporeal circulation to realize hemodialysis, but also can realize better collection of blood samples, simplifies operation links and simultaneously relieves pain of patients.
Further, the puncture-preventing sheath comprises a hollow sleeve body movably sleeved on the puncture hose, a first elastic protection body and a second elastic protection body are integrally formed on two opposite side edges of the hollow sleeve body, a flexible connecting belt is fixed on the tail end surface of the first elastic protection body, a first connecting portion is fixed on the connecting belt, and a second connecting portion detachably connected with the first connecting portion is fixed on the tail end surface of the second elastic protection body.
Further, the first connecting part is a connecting sub-buckle, and the second connecting part is a connecting female buckle.
Further, an external thread interface is arranged on the surface of the tail end of the straight pipe with the handle, and an internal thread interface is arranged on the inner wall surface of the cylindrical outer pipe.
Further, a plurality of axial grooves are formed in the outer wall surface of the cylindrical outer tube at intervals.
Drawings
Fig. 1 is a schematic diagram of a detachable arteriovenous fistula puncture blood taking needle provided by the utility model.
Fig. 2 is an enlarged schematic view of the adapter at a in fig. 1.
In the figure, 1, an internal fistula puncture mechanism; 11. puncturing the hose; 12. a puncture needle; 13. a lancet wing; 14. puncture needle protecting sleeve; 15. a liquid stopping clamp; 16. a needle penetration prevention sheath; 161. a hollow sleeve body; 162. a second elastic guard; 163. a connecting belt; 164. a first connection portion; 165. a second connecting portion; 17. straight pipe with handle; 18. a transfer tube head; 181. a cylindrical outer tube; 182. a sealing block; 183. a cylindrical inner tube; 184. a rubber stopper; 2. an internal fistula blood sampling mechanism; 21. a blood collection hose; 22. a switching needle head; 23. a switching needle wing; 24. a blood collection needle; 25. an elastic envelope; 26. and a protective cap.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
In the description of the present utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 and 2, the utility model provides a detachable arteriovenous internal fistula puncture blood taking needle, which comprises an internal fistula puncture mechanism 1 and an internal fistula blood taking mechanism 2, wherein the internal fistula puncture mechanism 1 comprises a puncture hose 11, the head end of the puncture hose 11 is fixedly connected with a puncture needle head 12, the outer wall of the joint of the puncture hose 11 and the puncture needle head 12 is fixedly sleeved with a puncture needle wing 13, the puncture needle wing 13 is convenient for penetrating the puncture needle head 12 into a blood vessel of a patient, the puncture needle 12 is externally provided with a puncture needle protecting sleeve 14, a liquid stopping clamp 15 is movably sleeved on the puncture hose 11, and the puncture needle head 12 is sleeved with an anti-puncture sheath 16, namely, medical staff is prevented from being punctured by a needle through the anti-puncture sheath 16, the tail end of the puncture hose 11 is fixedly connected with a straight pipe 17 with a handle, the tail end of the straight pipe 17 is detachably connected with a transfer 18, the transfer 18 is used for realizing the sealing connection of the internal fistula puncture mechanism 1 and the internal fistula mechanism 2, the transfer 18 comprises a sealing block 181 which is connected with the tail end of the straight pipe 17, the sealing block 183 is integrally formed by the sealing block 181 of the inner pipe head 181, and the sealing block is integrally arranged on the cylindrical sealing block 181, and the cylindrical sealing block 181 is integrally formed on the cylindrical sealing cap 181 of the inner pipe 181; the internal fistula blood sampling mechanism 2 comprises a blood sampling hose 21, the head end of the blood sampling hose 21 is fixedly connected with a transfer needle head 22, the transfer needle head 22 is connected to a rubber seal 184 in a pluggable manner, the outer wall of the joint of the blood sampling hose 21 and the transfer needle head 22 is fixedly sleeved with a transfer needle wing 23, the transfer needle wing 23 is convenient to be communicated with the interior of the straight pipe 17 with a handle after the transfer needle head 22 is inserted into the rubber seal 184 during blood sampling, and the transfer needle head 22 can be pulled out from the rubber seal 184 after blood sampling is completed, so that the pluggable connection between the transfer needle head 22 and the rubber seal 184 is realized; meanwhile, as the rubber seal is made of good elastic materials, after the adapter needle 22 is pulled out of the rubber seal 184, the plug hole on the rubber seal can be quickly closed to avoid the pollution inside the puncture hose 11, the tail end of the blood collection hose 21 is fixedly connected with the blood collection needle 24, the elastic sleeve 25 is fixedly sleeved outside the blood collection needle 24, and the protective cap 26 is arranged outside the elastic sleeve 25.
Compared with the prior art, when the detachable arteriovenous fistula puncture blood taking needle provided by the utility model is used for taking blood and puncturing, on one hand, medical staff firstly opens the liquid stopping clamp on the puncture hose, then takes the puncture needle protecting sleeve off, pierces the puncture needle head into a blood taking test tube, then takes the protecting cap off, inserts the blood taking needle head into the blood taking test tube, and utilizes the combination of negative pressure in the blood taking test tube and positive pressure in the blood taking test tube to automatically flow blood of a patient into the blood taking test tube so as to realize blood sample collection, so that the blood taking process is carried out in a closed environment, the hand pollution of nurses caused by pollution or splashing of blood samples is avoided, the cross infection probability is greatly reduced, and the operation link of the whole blood taking process is less, so that the detachable arteriovenous fistula puncture blood taking needle is particularly convenient for patients with inconvenient movement in long-term bed; on the other hand, when the dialysis and puncture work is carried out after blood collection is finished, medical staff pulls out the switching needle head from the rubber sealing plug, and removes the switching tube head from the tail end of the straight tube with the handle, then connects the tail end of the puncture hose with the existing hemodialysis pipeline, then opens the liquid stopping clamp on the puncture hose, and then pierces the blood vessel of a patient with the puncture needle head after the puncture needle protective sleeve is removed to establish extracorporeal circulation to realize hemodialysis. Therefore, the utility model not only can establish extracorporeal circulation to realize hemodialysis, but also can realize better collection of blood samples, simplifies operation links and simultaneously relieves pain of patients.
As a specific embodiment, referring to fig. 1, the puncture preventing sheath 16 includes a hollow sleeve body 161 movably sleeved on the puncture hose 11, a first elastic protecting body (not shown) and a second elastic protecting body 162 are integrally formed on two opposite sides of the hollow sleeve body 161, the first elastic protecting body and the second elastic protecting body 162 may be specifically made of existing elastic plastics, a flexible connecting belt 163 is fixed on a tail end surface of the first elastic protecting body, a first connecting portion 164 is fixed on the connecting belt 163, and a second connecting portion 165 detachably connected with the first connecting portion 164 is fixed on a tail end surface of the second elastic protecting body 162. When the puncture-preventing sheath 16 provided in this embodiment is used, the hollow sheath body 161 is moved on the puncture hose 11 to be clamped with the puncture needle wing 13, then the first elastic protector and the second elastic protector 162 are mutually pinched to form a sheath for the puncture needle 12, and then the first connecting portion 164 and the second connecting portion 165 are connected in a matched manner, so that cross infection of blood caused by puncture of medical staff by needles can be prevented.
As a specific embodiment, the first connecting portion 164 is an existing connector button, and the second connecting portion 165 is an existing connector button, so that the first connecting portion 164 and the second connecting portion 165 can be detachably connected by the fastening cooperation of the connector button and the connector button. Of course, on the basis of the above-mentioned connection of the snap fastener, the person skilled in the art can also adopt other connection modes such as the existing magic snap tape.
As a specific embodiment, the surface of the tail end of the straight pipe 17 with a handle is provided with an external threaded interface, and the inner wall surface of the cylindrical outer pipe 181 is provided with an internal threaded interface, so that the tail end of the straight pipe 17 with a handle can be detachably connected with the adapter 18 through the threaded engagement of the external threaded interface and the internal threaded interface, and the threaded interface can effectively ensure the tightness of the connection between the straight pipe 17 with a handle and the adapter 18.
As a specific embodiment, the outer wall surface of the cylindrical outer tube 181 is provided with a plurality of axial grooves at intervals, so that the adapter tube head 18 is convenient to pinch for disassembly and installation connection.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (5)
1. The utility model provides a detachable arteriovenous internal fistula puncture blood taking needle, its characterized in that includes internal fistula puncture mechanism and internal fistula blood taking mechanism, internal fistula puncture mechanism includes the puncture hose, the first end fixedly connected with puncture syringe needle of puncture hose, the fixed needle wing that has cup jointed of junction outer wall of puncture hose and puncture syringe needle, the puncture syringe needle is equipped with the pjncture needle protective sheath outward, movable cover is equipped with the liquid that ends clamp and carries out the sheath of preventing puncture of sheath with the puncture syringe needle on the puncture hose, the tail end fixedly connected with handle straight tube of puncture hose, the tail end of handle straight tube can be dismantled and be connected with the adapter tube head, the adapter tube head includes the cylindricality outer tube of detachable connection with handle straight tube tail end, the tail end integrated into one piece of cylindricality outer tube has the sealing block, integrated into one piece has the cylindricality inner tube that extends to cylindricality outer tube head end and outer wall and handle straight tube inner wall in close contact, be equipped with the rubber seal plug that seals cylindricality inner tube intermediate passage on the inner wall of cylindricality inner tube; the internal fistula blood sampling mechanism comprises a blood sampling hose, the head end of the blood sampling hose is fixedly connected with a transfer needle head, the transfer needle head is connected to a rubber seal plug in a pluggable manner, a transfer needle wing is fixedly sleeved on the outer wall of the joint of the blood sampling hose and the transfer needle head, the tail end of the blood sampling hose is fixedly connected with the blood sampling needle head, an elastic sleeve is fixedly sleeved on the outer side of the blood sampling needle head, and a protective cap is arranged outside the elastic sleeve.
2. The detachable arteriovenous fistula puncture blood taking needle of claim 1, wherein the puncture preventing sheath comprises a hollow sleeve body movably sleeved on the puncture hose, a first elastic protecting body and a second elastic protecting body are integrally formed on two opposite side edges of the hollow sleeve body, a flexible connecting belt is fixed on the tail end surface of the first elastic protecting body, a first connecting part is fixed on the connecting belt, and a second connecting part detachably connected with the first connecting part is fixed on the tail end surface of the second elastic protecting body.
3. The detachable arteriovenous fistula puncture blood taking needle of claim 2, wherein the first connecting portion is a connector clasp and the second connecting portion is a connector button.
4. The detachable arteriovenous fistula puncture blood taking needle of claim 1, wherein an external thread interface is arranged on the tail end surface of the straight tube with the handle, and an internal thread interface is arranged on the inner wall surface of the cylindrical outer tube.
5. The detachable arteriovenous fistula puncture blood taking needle of claim 1, wherein the outer wall surface of the cylindrical outer tube is provided with a plurality of axial grooves at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321889599.XU CN220898763U (en) | 2023-07-18 | 2023-07-18 | Detachable arteriovenous internal fistula puncture blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321889599.XU CN220898763U (en) | 2023-07-18 | 2023-07-18 | Detachable arteriovenous internal fistula puncture blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220898763U true CN220898763U (en) | 2024-05-07 |
Family
ID=90921104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321889599.XU Active CN220898763U (en) | 2023-07-18 | 2023-07-18 | Detachable arteriovenous internal fistula puncture blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220898763U (en) |
-
2023
- 2023-07-18 CN CN202321889599.XU patent/CN220898763U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |