CN215083397U

CN215083397U - Safe indwelling needle

Info

Publication number: CN215083397U
Application number: CN202120871114.9U
Authority: CN
Inventors: 卢家玲; 雷娟娟
Original assignee: Cancer Center of Guangzhou Medical University
Current assignee: Cancer Center of Guangzhou Medical University
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-12-10
Anticipated expiration: 2031-04-26

Abstract

The utility model belongs to the technical field of medical instrument, specifically disclose a needle is kept somewhere to safe type, including keeping somewhere needle tubing, pjncture needle, joint Assembly, transfer line, ending pressing from both sides and preventing stinging the cover, keep somewhere through the transfer line intercommunication between needle tubing and the joint Assembly, keep somewhere needle tubing one end and prevent stinging cover cooperation joint, the pjncture needle passes in proper order and prevents stinging the cover and keep somewhere the needle tubing and outwards extend, ends to press from both sides the cover and locate on the transfer line. When the puncture needle needs to puncture a blood vessel of a patient, the puncture-preventing sleeve is adjusted to enable the needle point of the puncture needle to be exposed out of the end part of the puncture-preventing sleeve, then the puncture-preventing sleeve is sleeved at one end of the indwelling needle tube, the indwelling needle tube is guided into the blood vessel of the patient through the puncture needle, then the puncture needle is pulled out, meanwhile, the puncture-preventing sleeve is withdrawn from the indwelling needle tube along with the puncture needle and is fixedly sleeved at the needle point part of the puncture needle, so that the needle point of the puncture needle is contained in the puncture-preventing sleeve, the problem of cross infection caused by the fact that medical personnel are easily punctured by the puncture needle is solved, and the puncture-preventing sleeve is simple and compact in structure, convenient to use and high in reliability of preventing false puncture.

Description

Safe indwelling needle

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to needle is kept somewhere to safe type.

Background

The indwelling needle is a common medical appliance in nursing work, has convenient use and the function of reducing the puncture number to a patient, thereby reducing repeated puncture during clinical transfusion, and reducing the puncture pain of the patient and the workload of clinical nursing staff, thereby being widely applied in the current clinic.

The conventional indwelling needle generally includes: puncture needle, indwelling needle tube and infusion catheter. When in use, the liquid medicine is injected into blood vessels of a patient through the infusion catheter.

The existing indwelling needle has the following defects:

(1) the tip of the indwelling needle tube is open, and the phenomenon of blood return and blood coagulation blockage caused by blood platelet and blood coagulation substances entering the indwelling needle tube can also occur along with pressure fluctuation caused by the respiration and heartbeat changes of a patient;

(2) when the puncture steel needle is pulled out, the pulled needle head can scratch medical personnel, so that the medical personnel is infected, the health of the medical personnel is harmed, and even life danger is caused.

(3) The existing indwelling needle tube is remained in the blood vessel of a patient, during the period of stopping transfusion, the situation that blood embolism occurs due to blood infiltration in the needle tube is very easy to occur, and the indwelling needle tube needs to be replaced once the situation of blood embolism occurs.

In order to solve the defect (3), medical staff often injects diluted heparin solution or normal saline into an indwelling needle tube through a three-way tube to seal the tube, but the operation is complicated, the thrombus prevention effect is limited by time, and the tube sealing is required to be flushed again usually every 6-8 hours.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the defects of the prior art, the safety indwelling needle is simple and compact in structure and convenient to use, effectively solves the problem that cross infection is caused due to the fact that a waste puncture needle is easy to cause puncture, and is high in false puncture prevention reliability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a needle is kept somewhere to safe type, is including keeping somewhere needle tubing, pjncture needle, joint Assembly, transfer line, ending to press from both sides and prevent stinging the cover, keep somewhere the needle tubing with pass through between the joint Assembly the transfer line intercommunication, keep somewhere needle tubing one end with prevent stinging cover cooperation joint, the pjncture needle passes in proper order prevent stinging the cover with keep somewhere the needle tubing and outwards extend and go out, end to press from both sides the cover and locate on the transfer line.

Further, the joint component comprises a first joint, a second joint and a protective cover, wherein the protective cover is detachably mounted on the first joint or the second joint, the protective cover covers the second joint during infusion, and the protective cover is detached from the second joint and covers the first joint after infusion is finished.

Further, the indwelling needle tube is provided with a first chamber and a second chamber which are separated by an isolating plug.

Further, the infusion tube is arranged at one end of the first chamber and communicated with the first chamber.

Furthermore, the interior of the puncture-proof sleeve is hollow to form a first accommodating cavity and a second accommodating cavity, the first accommodating cavity is communicated with the second accommodating cavity, a movable baffle plate is movably arranged in the first accommodating cavity, and a first knob used for controlling the rotation of the movable baffle plate is arranged on the outer side of the puncture-proof sleeve.

Furthermore, a first through hole for the puncture needle to be punctured and punctured is formed in the movable baffle, when the puncture needle is to be punctured into a blood vessel, the movable baffle is adjusted, so that the first through hole and the puncture needle are in a concentric state, and when the puncture needle is completely moved out of the first through hole, the movable baffle rotates, so that the first through hole and the puncture needle are in an eccentric state.

Further, the rotation angle of the first knob ranges from 20 degrees to 50 degrees.

Furthermore, the inner wall of the second accommodating cavity is provided with a first clamping protrusion, the puncture needle is provided with a first clamping groove matched with the first clamping protrusion, and when the puncture needle is punctured, the first clamping groove and the first clamping protrusion are matched and clamped, so that the puncture-preventing sleeve is connected with the puncture needle to move outwards.

Furthermore, a liquid outlet hole is formed in the front end of the indwelling needle tube and communicated with the first cavity.

Furthermore, the rear end of the puncture needle is provided with a handheld part, and the handheld part is used for medical personnel to hand and insert or pierce the blood vessel of the patient with the puncture needle.

The beneficial effects of the utility model reside in that: the utility model provides a needle is kept somewhere to safe type, is including keeping somewhere needle tubing, pjncture needle, joint Assembly, transfer line, ending to press from both sides and prevent stinging the cover, keep somewhere the needle tubing with pass through between the joint Assembly the transfer line intercommunication, keep somewhere needle tubing one end with prevent stinging cover cooperation joint, the pjncture needle passes in proper order prevent stinging the cover with keep somewhere the needle tubing and outwards extend and go out, end to press from both sides the cover and locate on the transfer line. The utility model provides a pair of needle is kept somewhere to safe type, when the needs pjncture needle pierces the patient blood vessel, the regulation prevents stinging the cover, make the pjncture needle point expose and prevent stinging the cover tip, then will prevent stinging the cover cup joint in the one end of keeping somewhere the needle tubing, will keep somewhere the leading-in patient's blood vessel of needle tubing through the pjncture needle guide, then extract the pjncture needle, and simultaneously, prevent stinging the cover and withdraw from keeping somewhere the needle tubing along with the pjncture needle, and fixed cup joint in the needle point position of pjncture needle, make the needle point holding of pjncture needle in preventing stinging the cover, the easy stab medical personnel of pjncture needle and the problem that causes cross infection has been solved, the structure is simple and compact, high durability and convenient use, prevent mistake and sting the reliability height.

Drawings

FIG. 1 is a schematic view of a safety positive pressure connector indwelling needle according to the present invention;

FIG. 2 is a second schematic view of the structure of a safety positive pressure connector indwelling needle of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is an enlarged view of part B of FIG. 2;

FIG. 5 is a schematic view showing the structure of an indwelling needle.

Wherein: 1-indwelling needle tube; 11-a first chamber; 12-a second chamber; 13-a barrier plug; 14-liquid outlet holes; 2, puncturing needle; 21-a first card slot; 22-a hand-held portion; 3-a joint assembly; 31-a first joint; 32-a second linker; 33-a protective cover; 4-a transfusion tube; 5-a cut-off clamp; 6-stab-resistant sleeve; 61-a first accommodating cavity; 62-a second accommodating cavity; 621-first snap projection; 7-a movable baffle; 71-a first via; 8-first knob.

Detailed Description

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, or an electrical connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the application, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the following drawings and specific examples, which should not be construed as limiting the present invention.

As shown in figures 1-5, the safe indwelling needle comprises an indwelling needle tube 1, a puncture needle 2, a joint component 3, a transfusion tube 4, a stop clamp 5 and a puncture-proof sleeve 6, wherein the indwelling needle tube 1 is communicated with the joint component 3 through the transfusion tube 4, one end of the indwelling needle tube 1 is matched and clamped with the puncture-proof sleeve 6, the puncture needle 2 sequentially penetrates through the puncture-proof sleeve 6 and the indwelling needle tube 1 and extends outwards, and the transfusion tube 4 is sleeved with the stop clamp 5. The utility model provides a pair of needle is kept somewhere to safe type, when needs pjncture needle 2 pierces the patient blood vessel, adjust and prevent thorn cover 6, make 2 needle points of pjncture needle expose and prevent thorn cover 6 tip, then will prevent thorn cover 6 and cup joint in the one end of keeping somewhere needle tubing 1, will keep somewhere the leading-in patient's blood vessel of needle tubing 1 through 2 guides of pjncture needle, then extract pjncture needle 2, and simultaneously, prevent thorn cover 6 and withdraw from keeping somewhere needle tubing 1 along with pjncture needle 2, and fixed cup joint is in the needle point position of pjncture needle 2, make the needle point holding of pjncture needle 2 in preventing thorn cover 6, the problem that the easy stab medical personnel of pjncture needle 2 and cause cross infection has been solved, its simple structure is compact, high durability and convenient use, prevent mistake thorn reliability height.

Preferably, the indwelling needle cannula 1 is provided with a first chamber 11 and a second chamber 12, the first chamber 11 and the second chamber 12 are separated by a septum 13, and the infusion tube 4 is provided at one end of the first chamber 11 and is communicated with the first chamber 11. The first chamber 11 is a transfusion chamber, and the second chamber 12 is used for accommodating the puncture-proof sleeve 6, so that the puncture-proof sleeve 6 can be sleeved in the indwelling needle tube 1. The isolating plug 13 is made of a material having elasticity, such as sponge, latex or rubber, so that when the puncture needle 2 is pulled out and retreats, the isolating plug 13 can close the through hole formed by the puncture needle 2 due to the elasticity of the isolating plug 13, and the liquid medicine is prevented from flowing into the second chamber 12 from the first chamber 11, so that the liquid medicine is prevented from leaking.

Preferably, the connector assembly 3 comprises a first connector 31, a second connector 32 and a protective cover 33, wherein the protective cover 33 is detachably mounted on the first connector 31 or the second connector 32. When the transfusion is completed, the protective cover 33 is detached from the second connector 32 and covers the first connector 31. Wherein, first joint 31 is the malleation and connects, the surface of first joint 31 is provided with the first external screw thread of being connected with the cooperation of outside transfusion system joint, the surface of second joint 32 is provided with the second external screw thread of imitative first external screw thread, when needs infusion, outside transfusion system and the infusion of first joint 31 department, the liquid medicine circulates to the first cavity 11 of remaining needle tubing 1 through first joint 31 and transfer line 4 in, and finally flow in patient's blood vessel, first joint 31 adopts the malleation joint structure, can avoid using the scalp acupuncture, thereby further prevent the emergence of acupuncture phenomenon, and simultaneously, the liquid medicine backward flow or the blood backward flow that the negative pressure that produces when effectively having avoided screwing out outside transfusion system joint arouses, prevent that blood backward flow forms the embolism in keeping somewhere the needle to the vein.

Wherein, the protective cover 33 is detachably connected to the first connector 31 through the connecting band, when only one fluid infusion mode is available, the protective cover 33 is screwed out from the first connector 31 (positive pressure connector), the protective cover 33 is installed on the second connector 32, then the external infusion apparatus is connected with the first connector 31 (positive pressure connector), infusion is performed, after the infusion is completed, the protective cover 33 is screwed out from the second connector 32, and then the protective cover is installed on the first connector 31 (positive pressure connector), the protective cover 33 not only plays a role in blocking, bacterial growth caused by exposure of the port of the first connector 31 (positive pressure connector) to the air is avoided, but also the protective cover 33 can be detached and reused after secondary disinfection, unnecessary waste of resources is avoided, and the use cost is reduced.

Preferably, the puncture-proof sleeve 6 is hollow to form a first accommodating cavity 61 and a second accommodating cavity 62, the first accommodating cavity 61 is communicated with the second accommodating cavity 62, the inner diameter of the first accommodating cavity 61 is larger than that of the second accommodating cavity 62, a movable baffle 7 is movably arranged in the first accommodating cavity 61, a first through hole 71 for the puncture needle 2 to be inserted and inserted is formed in the movable baffle 7, the movable baffle 7 is adjusted to enable the first through hole 71 and the puncture needle 2 to be in a concentric state, so that the puncture needle 2 can be inserted into the first through hole 71, when the puncture needle 2 is pulled out backwards and completely exits from the first through hole 71, the movable baffle loses the supporting force, and rotates under the action of gravity, so that the first through hole 71 and the puncture needle 2 are in an eccentric state, and a first knob 8 for controlling the movable baffle 7 to rotate is further arranged on the outer side of the puncture-proof sleeve 6. As shown in fig. 2, when the medical staff rotates the first knob 8 by a certain angle, the first through hole 71 and the puncture needle 2 are kept concentric, so that the puncture needle 2 can conveniently pass through the first through hole 71 and finally penetrate into a blood vessel, when the puncture needle 2 is pulled out, the puncture needle 2 moves backwards, when the puncture needle 2 completely exits from the first through hole 71, the movable baffle 7 rotates under the action of self gravity due to losing the supporting force, the first knob 8 swings by a certain angle, so that the first through hole 71 and the puncture needle 2 are in an eccentric state, the needle point part of the puncture needle 2 is completely accommodated in the puncture-proof sleeve, and the swing angle of the first knob 8 is between 20 and 50 degrees, so that the operation is simple and the practicability is strong.

Preferably, the inner wall of the second accommodating cavity 62 is provided with a first clamping protrusion 621, the puncture needle 2 is provided with a first clamping groove 21 for matching with the first clamping protrusion 621, and when the puncture needle 2 is punctured, the first clamping groove 21 and the first clamping protrusion 621 are matched and clamped, so that the puncture-proof sleeve 6 and the puncture needle 2 move outwards. Due to the structural design, when the puncture needle 2 is pulled out, the puncture-proof sleeve 6 can be driven to move out together, the puncture-proof sleeve 6 is fixed at the head of the puncture needle 2, and cross infection caused by puncture of medical personnel by the needle point of the puncture needle 2 is prevented.

Preferably, the front end of the indwelling needle tube 1 is provided with a liquid outlet 14, and the liquid outlet 14 is communicated with the first chamber 11. The structure design ensures that the liquid medicine smoothly flows into the blood vessel.

Preferably, the rear end of the puncture needle 2 is provided with a handheld part 22, and the structure design is that the handheld part 22 is used for medical staff to hand to puncture the puncture needle 2 into or out of a blood vessel of a patient, so that the practicability of the indwelling needle is improved.

Variations and modifications to the above-described embodiments may become apparent to those skilled in the art from the disclosure and teachings of the above description. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious modifications, replacements or variations made by those skilled in the art on the basis of the present invention belong to the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A safety type indwelling needle, comprising: keep somewhere needle tubing (1), pjncture needle (2), joint Assembly (3), transfer line (4), end to press from both sides (5) and prevent stinging cover (6), keep somewhere needle tubing (1) with pass through between joint Assembly (3) transfer line (4) intercommunication, keep somewhere needle tubing (1) one end with prevent stinging cover (6) cooperation joint, pjncture needle (2) pass in proper order prevent stinging cover (6) with keep somewhere needle tubing (1) and outwards extend out, it locates to end to press from both sides (5) cover on transfer line (4).

2. The safety type indwelling needle according to claim 1, wherein:

the joint assembly (3) comprises a first joint (31), a second joint (32) and a protective cover (33), wherein the protective cover (33) is detachably arranged on the first joint (31) or the second joint (32).

3. The safety type indwelling needle according to claim 1, wherein:

the indwelling needle tube (1) is provided with a first chamber (11) and a second chamber (12), and the first chamber (11) and the second chamber (12) are separated by an isolating plug (13).

4. A safety type indwelling needle according to claim 3, wherein:

the infusion tube (4) is arranged at one end of the first chamber (11) and communicated with the first chamber (11).

5. The safety type indwelling needle according to claim 1, wherein:

prevent thorn cover (6) inside be the first holding chamber of cavity formation (61) and second holding chamber (62), first holding chamber (61) with second holding chamber (62) are linked together, first holding chamber (61) internalization is provided with adjustable fender (7), prevent thorn cover (6) outside is provided with and is used for controlling adjustable fender (7) rotatory first knob (8).

6. The safety type indwelling needle according to claim 5, wherein:

the movable baffle plate (7) is provided with a first through hole (71) for the puncture needle (2) to puncture and pierce out.

7. The safety type indwelling needle according to claim 5, wherein:

the rotating angle of the first knob (8) is 20-50 degrees.

8. The safety type indwelling needle according to claim 5, wherein:

the inner wall of the second accommodating cavity (62) is provided with a first clamping protrusion (621), and the puncture needle (2) is provided with a first clamping groove (21) matched with the first clamping protrusion (621).

9. A safety type indwelling needle according to claim 3, wherein:

the front end of the indwelling needle tube (1) is provided with a liquid outlet hole (14), and the liquid outlet hole (14) is communicated with the first cavity (11).

10. The safety type indwelling needle according to claim 1, wherein:

the back end of the puncture needle (2) is provided with a handheld part (22), and the handheld part (22) is used for medical staff to hold and puncture the puncture needle (2) into or out of a blood vessel of a patient.