CN114053520A - Nursing remaining needle capable of avoiding medical infection and using method thereof - Google Patents
Nursing remaining needle capable of avoiding medical infection and using method thereof Download PDFInfo
- Publication number
- CN114053520A CN114053520A CN202111363623.1A CN202111363623A CN114053520A CN 114053520 A CN114053520 A CN 114053520A CN 202111363623 A CN202111363623 A CN 202111363623A CN 114053520 A CN114053520 A CN 114053520A
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- Prior art keywords
- ring
- puncture needle
- supporting
- needle core
- puncture
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
- A61M2005/1585—Needle inserters
Abstract
The invention is suitable for the technical field of medical instruments, and provides a nursing indwelling needle for avoiding medical infection and a using method thereof, wherein the indwelling needle comprises a supporting cylinder body, a puncture needle core and a liquid injection joint component, wherein the non-puncture end of the puncture needle core extends into the supporting cylinder body and is connected with a displacement adjusting component in the supporting cylinder body; and the needle-pricked end of the puncture needle core extends into the catheter after sequentially penetrating through the sealing element and the liquid cavity. The indwelling needle provided by the embodiment of the invention firstly enables the puncture end of the puncture needle core to be rapidly stored in the catheter by the restoring force action of the supporting spring, and then the puncture needle core is completely extracted and stored by utilizing the displacement adjusting component; the stroke that can avoid the spring of single structure to lead to is not enough, and can't take in the problem completely with the puncture needle core, has effectively solved and can't take out and take in the puncture needle core is complete, very easily causes the problem of the risk that the puncture needle core continues to leak outward.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a nursing indwelling needle capable of avoiding medical infection and a using method thereof.
Background
The venous indwelling needle can relieve the pain of a patient caused by repeated puncture, protect blood vessels, facilitate clinical medication and emergency rescue and reduce the workload of nursing staff.
At present, the venous indwelling needle is also called as venous trocar, and the core component comprises a soft catheter which can be indwelling in the blood vessel and a stainless steel puncture guiding needle core. When in use, the catheter and the needle core are punctured into a blood vessel together, after the catheter completely enters the blood vessel, the needle core is withdrawn, and only the soft catheter is left in the blood vessel so as to carry out infusion treatment.
Traditional vein is kept somewhere the needle, when clinical operation took out the puncture needle core, the spring of simplex structure is because the restriction of its stroke, and compression spring only when initial condition, just has great restoring force to realize the effect of short-distance taking out the puncture needle core, and can not carry out complete taking out and accomodate in the protective sheath with the puncture needle core, very easily causes the risk that the puncture needle core continues the hourglass, and the needle core point of being stained with patient's blood probably causes medical personnel's accidental injury and infection very much.
Disclosure of Invention
The invention aims to provide a nursing indwelling needle capable of avoiding medical infection and a using method thereof, and aims to solve the problems that the conventional indwelling needle adopts a spring with a single structure, cannot completely draw out a needle core and is accommodated in a protective sleeve, so that the puncture needle core is easy to cause the risk of continuous leakage, and the tip of the needle core stuck with blood of a patient is likely to cause accidental injury and infection of medical workers.
In order to achieve the above purpose, the present invention provides the following technical solutions.
In a first aspect, an embodiment of the present invention provides a nursing indwelling needle for avoiding medical infection, the indwelling needle comprising:
the supporting cylinder body is fixedly connected with the protecting sleeve; the supporting cylinder body is fixedly supported and connected with the protecting sleeve through a fixed connecting rod; the right end opening of the supporting cylinder body is rotationally connected with the left end opening of the shifting ring; the left end opening of the protective sleeve is rotatably connected with the right end opening of the shifting ring; the inner side of the shifting ring is provided with a limiting component matched with the displacement adjusting component, and when the displacement adjusting component is at an initial position, the limiting component is abutted against the displacement adjusting component so as to limit the displacement adjusting component to move; the left end of the supporting cylinder body is connected with the guide pipe through a conical connecting cylinder; the conical connecting cylinder is provided with a sealing element and a liquid cavity;
the non-needling end of the puncture needle core extends into the supporting cylinder and is connected with the displacement adjusting component in the supporting cylinder; and the needle-pricked end of the puncture needle core extends into the catheter after sequentially penetrating through the sealing element and the liquid cavity;
and the liquid injection joint component is connected with the liquid cavity through a liquid conveying pipe.
In some embodiments of the present invention, the displacement adjusting assembly comprises an externally threaded rod slidably disposed in the support cylinder, and the end of the lancet extending into the support cylinder is fixed by a lancet mounting seat fixedly disposed at the end of the support cylinder; the outer screw rod is last to install the thread bush through the threaded connection mode, with the portable cover in outer screw rod tip outer lane of nook closing member mount pad homonymy is equipped with the slip ring seat, the slip ring seat with be connected through supporting spring between the thread bush, the outer lane equipartition of thread bush is fixed and is provided with a plurality of second stoppers, spacing subassembly supports do during the right-hand member of second stopper initial condition.
In some embodiments provided by the invention, the limiting assembly comprises a supporting ring fixedly installed on the inner side of the shifting ring, a plurality of third limiting blocks are uniformly installed on the inner ring of the supporting ring, and the third limiting blocks can penetrate through a supporting channel formed between two adjacent second limiting blocks.
In some embodiments of the present invention, when the third limiting block abuts against the second limiting block, the third limiting block abuts against the right end of the second limiting block under the action of the elastic supporting force of the supporting spring.
In some embodiments provided herein, the piercing end of the lancet core extends out of the catheter a first distance when the displacement adjustment assembly is in the initial position;
a plurality of first limiting blocks matched with the supporting channel are fixedly arranged on the right-end open inner ring of the supporting cylinder, when the third limiting block abuts against the right end of the second limiting block, the first limiting block is positioned in the supporting channel and positioned on the right side of the second limiting block, and the distance between the first limiting block and the left end of the second limiting block is a second distance;
the second distance is greater than the first distance.
In some embodiments provided by the invention, a limiting ring is further fixedly arranged on the inner wall of the left end opening of the protecting sleeve, and the inner diameter of the limiting ring is larger than the outer diameter of the second limiting block.
In some embodiments of the present invention, the right end of the second stopper abuts against the stopper ring, the first stopper is separated from the supporting channel, and the third stopper abuts against the supporting channel.
In some embodiments of the present invention, the protective sheath has a guide rail groove therein, the right end of the external threaded rod is fixedly provided with a guide slider, when the right end of the second limiting block abuts against the limiting ring, the guide slider is slidably disposed in the corresponding guide rail groove, at this time, when the puncture needle core needs to be completely withdrawn and stored in the protective sheath and the supporting cylinder, the thumb is used to poke the poke ring, the rotating poke ring drives the third limiting block to rotate, because the third limiting block is in the supporting channel, the third limiting block can drive the threaded sleeve to rotate, because the threaded sleeve is mounted on the external threaded rod in a threaded connection manner, at this time, the external threaded rod can be pushed to continuously move to the right integrally according to the rotating direction of the threaded sleeve, so that the external threaded rod gradually extends into the protective sheath for storage, and the puncture needle core is completely stored in the supporting cylinder and the protective sheath, and then realize that the puncture needle core is by complete accomodating to carry out complete protection to the acupuncture end of puncture needle core, avoided single structure's spring structure and the incomplete problem of accomodating of puncture needle core that leads to.
In some embodiments of the present invention, the sealing element includes a sealing seat fixedly disposed in the opening at the right end of the conical connection cylinder, and the sealing seat is further provided therein with a first sealing ring and a second sealing ring, respectively, so as to perform more effective sealing on the puncture needle core passing through the sealing element, and after the puncture needle core is pulled out from the sealing element, the sealing element is reset, and effective sealing is achieved.
In a second aspect, another embodiment of the present invention provides a method for using a nursing indwelling needle for avoiding medical infection, the method comprising the steps of:
step S901: during nursing, the tourniquet is tied 20-30 cm above the puncture point; then sterilizing the puncture point of the patient, holding the remaining needle by a nurse, and performing puncture needle insertion treatment on the puncture point at an included angle of 15-30 degrees;
step S902: after the needle is inserted into the catheter and is sent into the blood vessel, the tourniquet is loosened, the thumb of a nurse dials the dial ring, and when the dial ring rotates to the third limiting block and is aligned with the supporting channel, the elastic restoring force of the supporting spring pushes the external thread rod to integrally move right in the supporting cylinder body, so that the acupuncture end of the puncture needle core retracts into the catheter;
step S903: the thumb is continuously used for stirring the stirring ring, the rotating stirring ring drives the third limiting block to rotate, the external thread rod is pushed to continuously move to the right integrally, then the acupuncture end of the puncture needle core is completely taken out from the sealing element, the acupuncture end of the puncture needle core is stopped in the supporting cylinder body so as to protect the acupuncture end of the puncture needle core, the puncture needle core is completely stored, and at the moment, when the supporting cylinder body and the conical connecting cylinder are separated, the accidental injury and infection of the puncture needle core to medical personnel can be avoided.
Compared with the prior art, the indwelling needle provided by the embodiment of the invention firstly enables the puncture end of the puncture needle core to be rapidly accommodated in the catheter by the restoring force action of the supporting spring, and then the puncture needle core is completely extracted and accommodated by the displacement adjusting component; the stroke that can avoid the spring of simplex structure to lead to is not enough, and can't accomodate the problem completely of puncture needle core, has effectively solved present spring that keeps somewhere the needle and adopts the simplex structure, can not take out and accomodate puncture needle core completely, very easily causes puncture needle core to continue the risk of leaking outward, and the puncture needle core point of being stained with patient's blood probably causes medical personnel's accidental injury and the problem of infecting extremely.
Drawings
FIG. 1 is a schematic structural view of a nursing indwelling needle for avoiding medical infection according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a displacement regulating member in a nursing indwelling needle for preventing medical infection according to an embodiment of the present invention;
FIG. 3 is a schematic view of a portion of the enlarged structure at a in FIG. 1;
FIG. 4 is a schematic view of a portion of the structure at b in FIG. 1;
FIG. 5 is a front view of the opening of the supporting tube of the indwelling needle for nursing care provided by the embodiment of the present invention for avoiding medical infection;
FIG. 6 is a right side view of the displacement adjustment assembly of FIG. 2;
fig. 7 is a flow chart illustrating an implementation of a method for using a nursing indwelling needle for avoiding medical infection according to an embodiment of the present invention.
In the drawings: 100. a protective sleeve; 101. a guide rail groove; 102. a limiting ring; 200. a support cylinder; 201. a first stopper; 300. a conduit; 301. a tapered connecting cylinder; 302. a sealing seat; 303. a first seal ring; 304. a second seal ring; 305. a liquid chamber; 400. a puncture needle core; 500. a transfusion tube; 600. a liquid injection joint assembly; 700. an externally threaded rod; 701. a guide slider; 702. a threaded sleeve; 703. a second limiting block; 704. a support spring; 705. a sliding ring seat; 706. a stylet mount; 800. ring shifting; 801. a fixed connecting rod; 802. a support ring; 803. and a third limiting block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, in one preferred embodiment of the present invention, there is provided a nursing indwelling needle for avoiding medical infection, comprising:
the supporting cylinder body 200 is fixedly connected with the protecting sleeve 100; the supporting cylinder 200 is fixedly supported and connected with the protecting sleeve 100 through a fixed connecting rod 801; the right end opening of the supporting cylinder body 200 is rotatably connected with the left end opening of the shifting ring 800; the left end opening of the protective sleeve 100 is rotatably connected with the right end opening of the shifting ring 800; the inner side of the shifting ring 800 is provided with a limiting component matched with the displacement adjusting component, and when the displacement adjusting component is at an initial position, the limiting component is abutted against the displacement adjusting component so as to limit the displacement of the displacement adjusting component; the left end of the supporting cylinder body 200 is connected with the guide pipe 300 through a conical connecting cylinder 301; the conical connecting barrel 301 is provided with a sealing element and a liquid cavity 305;
further, the indwelling needle further comprises: a puncture needle core 400, wherein the non-puncture end of the puncture needle core 400 extends into the support cylinder 200 and is connected with a displacement adjusting component in the support cylinder 200; and the piercing end of the lancet core 400 extends into the catheter 300 after passing through the seal and the fluid chamber 305 in sequence;
further, the indwelling needle further comprises: and the liquid injection joint assembly 600, wherein the liquid injection joint assembly 600 is connected with the liquid cavity 305 through a liquid conveying pipe 500.
The liquid injection joint assembly 600 in the embodiment of the invention is only required to adopt the structure in the prior art.
Further, as shown in FIGS. 1-2 and 6, in a preferred embodiment of the present invention, the displacement adjustment assembly comprises an externally threaded rod 700 slidably disposed within the support cylinder 200, the end of the lancet 400 extending into the support cylinder 200 is fixed by a lancet mount 706, and the lancet mount 706 is fixedly disposed at the end of the support cylinder 200; the outer thread rod 700 is provided with a thread sleeve 702 in a threaded connection mode, the outer ring of one end part of the outer thread rod 700 on the same side of the stylet mounting seat 706 is provided with a sliding ring seat 705 in a movable mode, the sliding ring seat 705 can move along the axial direction of the outer thread rod 700, the sliding ring seat 705 is connected with the thread sleeve 702 through a supporting spring 704, a plurality of second limiting blocks 703 are fixedly arranged on the outer ring of the thread sleeve 702 in an evenly distributed mode, and the limiting assembly abuts against the right end of the second limiting blocks 703 and is in an initial state.
Specifically, as shown in fig. 1 and 4, in the embodiment of the present invention, the limiting assembly includes a supporting ring 802 fixedly installed inside the dial ring 800, a plurality of third limiting blocks 803 are uniformly installed on an inner ring of the supporting ring 802, and the third limiting blocks 803 can pass through a supporting channel formed between two adjacent second limiting blocks 703, so that when the third limiting blocks 803 abut against the second limiting blocks 703, that is, when the third limiting blocks 803 are not aligned with the supporting channel, under the action of the elastic supporting force of the supporting spring 704, the third limiting blocks 803 abut against the right ends of the second limiting blocks 703.
Further, with continued reference to FIGS. 1 and 4, in an embodiment of the present invention, and with the displacement adjustment assembly in the initial position, the piercing end of the lancet core 400 extends out of the catheter 300 a first distance; a plurality of first limiting blocks 201 matched with the supporting channel are fixedly arranged on the right-end open inner ring of the supporting cylinder 200, when the third limiting block 803 abuts against the right end of the second limiting block 703, the first limiting block 201 is positioned in the supporting channel and positioned on the right side of the second limiting block 703, and the distance between the first limiting block 201 and the left end of the second limiting block 703 is a second distance; therefore, when the embodiment of the present invention is used specifically, a user holds the protective sheath 100 with one hand and dials the dial ring 800 with the thumb of the one hand, so that the dial ring 800 rotates by a certain angle, when the dial ring 800 rotates to the third limiting block 803 to align with the supporting channel, the external thread rod 700 is driven to move right in the supporting cylinder 200 integrally under the action of the elastic restoring force of the supporting spring 704, and when the first limiting block 201 is disengaged from the supporting channel, the puncturing end of the puncture needle core 400 is completely retracted into the catheter 300, and at this time, the catheter 300 can be further slowly fed into the blood vessel.
Referring to fig. 1, in the embodiment of the present invention, a limiting ring 102 is further fixedly disposed on the inner wall of the left end opening of the protecting cover 100, an inner diameter of the limiting ring 102 is larger than an outer diameter of the second limiting block 703, that is, the second limiting block 703 cannot pass through the limiting ring 102, and when the external thread rod 700 is driven to integrally move right in the supporting cylinder 200 under the elastic restoring force of the supporting spring 704, the right end of the second limiting block 703 abuts against the limiting ring 102, at this time, the first limiting block 201 is disengaged from the supporting channel, and the third limiting block 803 abuts against the supporting channel.
Further, in the embodiment of the present invention, as shown in fig. 1 and fig. 6, the inside of the protecting cover 100 is provided with a guide rail groove 101, the right end of the external threaded rod 700 is fixedly provided with a guide slider 701, when the right end of the second stopper 703 abuts against the stopper ring 102, the guide slider 701 is slidably disposed in the corresponding guide rail groove 101, at this time, when the puncture needle core 400 needs to be completely extracted and stored in the protecting cover 100 and the supporting cylinder 200, the thumb continues to toggle the toggle ring 800, the rotating toggle ring 800 drives the third stopper 803 to rotate, because the third stopper 803 is in the supporting channel, the third stopper 803 can drive the threaded sleeve 702 to rotate, because the threaded sleeve 702 is installed on the external threaded rod 700 in a threaded connection, at this time, the external threaded rod 700 can be pushed to continuously move to the right integrally according to the rotating direction of the threaded sleeve 702, so that the external threaded rod 700 gradually extends into the protecting cover 100 to be stored, the puncture needle core 400 is completely accommodated in the support cylinder 200 and the protective sleeve 100, so that the puncture needle core 400 is completely accommodated, the puncture end of the puncture needle core 400 is completely protected, and the problem of incomplete accommodation of the puncture needle core 400 caused by a single-structure spring structure is solved.
With continued reference to fig. 1 and 3, in the embodiment of the present invention, the sealing member includes a sealing seat 302 fixedly disposed in the open port at the right end of the tapered connecting cylinder 301, and a first sealing ring 303 and a second sealing ring 304 are further disposed in the sealing seat 302, respectively, so as to perform more effective sealing on the lancet core 400 passing through the sealing member, and after the lancet core 400 is withdrawn from the sealing member, the sealing member is reset and effective sealing is achieved.
Preferably, the first sealing ring 303 and the second sealing ring 304 are both made of rubber; similarly, the sealing seat 302 may also be made of rubber, and the difference is that the first sealing ring 303 and the second sealing ring 304 have better restoring force, so that when the puncture needle core 400 is sequentially pulled out from the first sealing ring 303 and the second sealing ring 304, a good sealing effect is still achieved.
In the embodiment of the present invention, the tapered connecting cylinder 301 and the supporting cylinder 200 are detachably connected, preferably, the detachable connection may be a snap structure in the prior art, and this embodiment is not limited in particular.
The indwelling needle provided by the embodiment of the present invention first makes the puncturing end of the puncture needle core 400 be rapidly accommodated in the catheter 300 by the restoring force of the supporting spring 704, and then makes the puncture needle core 400 be completely withdrawn and accommodated by the displacement adjusting assembly; the stroke that can avoid the spring of simplex structure to lead to is not enough, and can't accomodate the problem completely of puncture needle core, has effectively solved present spring that keeps somewhere the needle and adopts the simplex structure, can not take out and accomodate puncture needle core 400 completely, very easily causes puncture needle core 400 to continue the risk of leaking outward, and the puncture needle core 400 point of being stained with patient's blood probably causes medical personnel's accidental injury and the problem of infecting very much.
In another embodiment provided by the present invention, a method of using a nursing indwelling needle for avoiding medical infection is provided.
Specifically, as shown in fig. 7, in the embodiment of the present invention, the using method includes the following steps:
step S901: during nursing, the tourniquet is tied 20-30 cm above the puncture point; then sterilizing the puncture point of the patient, holding the remaining needle by a nurse, and performing puncture needle insertion treatment on the puncture point at an included angle of 15-30 degrees;
step S902: after the needle is inserted into the catheter 300 and sent into the blood vessel, the tourniquet is loosened, the thumb of the nurse pulls the shifting ring 800, when the shifting ring 800 rotates to the third limiting block 803 aligned with the supporting channel, the elastic restoring force of the supporting spring 704 pushes the external thread rod 700 to move right integrally in the supporting cylinder 200, so that the needle puncturing end of the puncture needle core 400 retracts into the catheter 300;
step S903: the thumb is used for continuously poking the poking ring 800, the rotating poking ring 800 drives the third limiting block 803 to rotate, the external thread rod 700 is pushed to continuously move to the right integrally, then the acupuncture end of the puncture needle core 400 is completely pulled out from the sealing element, the acupuncture end of the puncture needle core 400 stays in the supporting cylinder body 200, so that the acupuncture end of the puncture needle core 400 is protected, the puncture needle core 400 is completely contained, and when the supporting cylinder body 200 is separated from the conical connecting cylinder 301, accidental injury and infection of the puncture needle core 400 to medical personnel can be avoided.
The above embodiments are merely illustrative of a preferred embodiment, but not limiting. When the invention is implemented, appropriate replacement and/or modification can be carried out according to the requirements of users.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (10)
1. A nursing indwelling needle for avoiding medical infection, comprising:
the supporting cylinder body is fixedly connected with the protecting sleeve; the right end opening of the supporting cylinder body is rotationally connected with the left end opening of the shifting ring; the left end opening of the protective sleeve is rotatably connected with the right end opening of the shifting ring; the inner side of the shifting ring is provided with a limiting component matched with the displacement adjusting component, and when the displacement adjusting component is at an initial position, the limiting component is abutted against the displacement adjusting component so as to limit the displacement adjusting component to move; the left end of the supporting cylinder body is connected with the guide pipe through a conical connecting cylinder; the conical connecting cylinder is provided with a sealing element and a liquid cavity;
the non-needling end of the puncture needle core extends into the supporting cylinder and is connected with the displacement adjusting component in the supporting cylinder; and the needle-pricked end of the puncture needle core extends into the catheter after sequentially penetrating through the sealing element and the liquid cavity;
and the liquid injection joint component is connected with the liquid cavity through a liquid conveying pipe.
2. The indwelling needle for nursing care of avoiding medical infection according to claim 1, wherein the displacement adjusting means comprises an externally threaded rod slidably disposed in the supporting cylinder, and the end of the puncture needle core extending into the supporting cylinder is fixed by a needle core mounting seat fixedly disposed at the end of the supporting cylinder; the outer screw rod is last to install the thread bush through the threaded connection mode, with the portable cover in outer screw rod tip outer lane of nook closing member mount pad homonymy is equipped with the slip ring seat, the slip ring seat with be connected through supporting spring between the thread bush, the outer lane equipartition of thread bush is fixed and is provided with a plurality of second stoppers, spacing subassembly supports do during the right-hand member of second stopper initial condition.
3. The indwelling needle for nursing care of avoiding medical infection according to claim 2, wherein the limiting component comprises a support ring fixedly installed inside the dial ring, a plurality of third limiting blocks are uniformly installed on the inner ring of the support ring, and the third limiting blocks can pass through the support channel formed between two adjacent second limiting blocks.
4. The indwelling needle for nursing care to avoid medical infection according to claim 2, wherein when the third stopper abuts against the second stopper, the elastic supporting force of the supporting spring causes the third stopper to abut against the right end of the second stopper.
5. The indwelling needle for care of avoiding medical infection according to claim 2, wherein the piercing end of the piercing core protrudes the catheter by a first distance when the displacement regulating member is in the initial position;
a plurality of first limiting blocks matched with the supporting channel are fixedly arranged on the right-end open inner ring of the supporting cylinder, when the third limiting block abuts against the right end of the second limiting block, the first limiting block is positioned in the supporting channel and positioned on the right side of the second limiting block, and the distance between the first limiting block and the left end of the second limiting block is a second distance;
the second distance is greater than the first distance.
6. The indwelling needle for nursing care of avoiding medical infection according to claim 2, wherein a limiting ring is further fixedly arranged on the inner wall of the left end opening of the protecting sleeve, and the inner diameter of the limiting ring is larger than the outer diameter of the second limiting block.
7. The indwelling needle for nursing care of avoiding medical infection according to claim 2, wherein the right end of the second stopper abuts against the stopper ring, the first stopper at this time is disengaged from the support channel, and the third stopper abuts against the support channel.
8. The indwelling needle for nursing care of avoiding medical infection according to claim 2, wherein the protective sheath has a guide rail groove, the right end of the external thread rod is fixedly provided with a guide slider, and when the right end of the second stopper abuts against the stopper ring, the guide slider is slidably arranged in the corresponding guide rail groove.
9. The indwelling needle for care of avoiding medical infection according to claim 2, wherein the sealing member comprises a sealing seat fixedly arranged in the open port at the right end of the tapered connecting cylinder, and a first sealing ring and a second sealing ring are respectively arranged in the sealing seat.
10. A method for using a nursing indwelling needle for avoiding medical infection, the method comprising the steps of:
step S901: during nursing, the tourniquet is tied 20-30 cm above the puncture point; then sterilizing the puncture point of the patient, holding the remaining needle by a nurse, and performing puncture needle insertion treatment on the puncture point at an included angle of 15-30 degrees;
step S902: after the needle is inserted into the catheter and is sent into the blood vessel, the tourniquet is loosened, the thumb of a nurse dials the dial ring, and when the dial ring rotates to the third limiting block and is aligned with the supporting channel, the elastic restoring force of the supporting spring pushes the external thread rod to integrally move right in the supporting cylinder body, so that the acupuncture end of the puncture needle core retracts into the catheter;
step S903: the thumb is continuously used for stirring the stirring ring, the rotating stirring ring drives the third limiting block to rotate, the external thread rod is pushed to continuously move to the right integrally, then the acupuncture end of the puncture needle core is completely pulled out from the sealing element, the acupuncture end of the puncture needle core stays in the supporting cylinder body, the puncture needle core is completely accommodated, and the supporting cylinder body and the conical connecting cylinder are separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363623.1A CN114053520A (en) | 2021-11-17 | 2021-11-17 | Nursing remaining needle capable of avoiding medical infection and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363623.1A CN114053520A (en) | 2021-11-17 | 2021-11-17 | Nursing remaining needle capable of avoiding medical infection and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114053520A true CN114053520A (en) | 2022-02-18 |
Family
ID=80277356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111363623.1A Withdrawn CN114053520A (en) | 2021-11-17 | 2021-11-17 | Nursing remaining needle capable of avoiding medical infection and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114053520A (en) |
-
2021
- 2021-11-17 CN CN202111363623.1A patent/CN114053520A/en not_active Withdrawn
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