CN216933401U - Artery puncture needle - Google Patents

Abstract

The utility model discloses an artery puncture needle, relating to the technical field of medical equipment and comprising a puncture needle body, one end of the puncture needle body is connected with an indwelling needle head, the inner walls of the puncture needle body and the indwelling needle head are connected with a needle core and a needle tube in a sliding way, in the utility model, medical personnel rotate an adjusting bolt to conveniently adjust the distance between the indwelling needle head and a bandage, by arranging the friction pad and matching with the first arc-shaped block and the second arc-shaped block, the inclination angles of the puncture needle body and the indwelling needle head can be conveniently adjusted, the sub magic tape and the wood magic tape are arranged, so that the bandage can be conveniently fixed on the arms of patients with different body types, thereby facilitating the fixation of the puncture needle body and the indwelling needle head, ensuring the stability of the puncture needle body and the indwelling needle head, and the matching use of the above structures, thereby being convenient for stably keeping the puncture needle body in the artery and preventing the puncture needle body from puncturing the artery due to unexpected shaking.

Description

Artery puncture needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an artery puncture needle.

Background

The Radial Artery (RA) is one of the most commonly used artery puncture sites, the country in 2007 becomes the first country with the number of Percutaneous Coronary Intervention (PCI) through RA exceeding the femoral artery, and the report of 2009 by experts in the field of cardiology in China shows that 20.3% of patients with coronary angiography can have anatomical variation of upper limb arteries, including: 5.0% of the distortion of the radial artery, 2.2% of hypoplasia, 1.1% of the annulus radioulnar, 7.7% of the abnormality of origin of the radial artery, 1.4% of the stenosis of the radial artery, 0.9% of the tortuosity of the brachial artery, 1.9% of the tortuosity of the subclavian artery and 0.03% of the occlusion of the subclavian artery, the radial artery showing a high degree of anatomical variation in its origin, this aspect being similar to the data at home and abroad, approximately less than 10% of the radial artery having a high origin, independent of sex and of the left and right side of the body.

The prior patent (publication No. CN213283254U) discloses an artery puncture needle, establish the hose of keeping somewhere on the pjncture needle body including pjncture needle body and cover, the needle point of pjncture needle body extends to the outside of keeping somewhere the hose, it has the clearance to keep somewhere between the inner wall of hose and the outer wall of pjncture needle body, be equipped with first blood inlet on the needle point of pjncture needle body, the inside of keeping somewhere the hose is equipped with the cover and establishes the inside lining hose outside the pjncture needle body, the inner wall of lining hose closely laminates with the outer wall of pjncture needle body, evenly be equipped with a plurality of grid channel along circumference between the outer wall of lining hose and the inner wall of keeping somewhere the hose, grid channel's length direction is the same with the axis direction of keeping somewhere the hose, be equipped with the second blood inlet of external intercommunication on every grid channel, it is transparent plastic to keep somewhere the hose.

When a radial artery is punctured, a patient usually adopts a supine position, the left upper limb is abducted on a hand support, a puncture person is positioned at the puncture side, the arm of the patient stretches horizontally and abducts by 20-30 degrees, the palm faces upwards, fingers point to the puncture person, a gauze roll is placed below the wrist of the patient, so that the wrist joint is lifted by 5-8 cm, and the wrist joint is kept in a slight hyperextension state, the index finger, the middle finger and the ring finger of the left hand of the puncture person are lightly placed at the strongest part of the radial artery of the patient from the far center end to the near center end from the puncture part during puncturing, the running direction of the radial artery of the patient is indicated, the part pointed by the index finger is the 'target point' of puncturing, the puncturing point is generally selected at the near end of the radial styloid process, namely at the second transverse crease, the beating part and the trend of the artery are determined, the needle inserting point is selected, the radial artery is punctured by using a 20G indwelling needle after local anesthetic or total anesthesia induction is injected in the intracutaneous and subcutaneous injection of the artery, the needle point direction is opposite to the blood flow direction, the included angle between the needle body and the skin is different according to the fat and thin degree of a patient, the needle is slowly inserted, when the needle core is found to have blood return, the puncture needle is pressed down and is further pushed forwards by 2 mm-3 mm, the needle core still has blood return, the needle core is slightly withdrawn, continuous blood return is still seen, the outer cannula can be pushed forwards, the needle core is withdrawn, the tail part of the cannula is required to eject blood outwards, the puncture tube is successfully placed, finally the lead is pushed to the artery through the puncture needle, when the artery puncture needle is used, the artery puncture needle does not have the needle core and the lead, the complete radial artery puncture operation is inconvenient to realize, and when the complete radial artery puncture operation is carried out by matching with the needle core and the lead, the longer interval time for withdrawing the needle core and pushing the lead influences the artery puncture efficiency, and the problem that air easily enters the artery through the puncture needle and causes infection easily occurs, and the artery puncture needle is inconvenient to stably place the puncture needle in the artery, and the problem that the puncture needle punctures the artery due to unexpected shaking is easy to occur, so the artery puncture needle has great limitation in the using process.

Therefore, it is necessary to provide an arterial puncture needle to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides an artery puncture needle, which solves the technical problems that the efficiency of the existing artery puncture needle is low when the radial artery puncture is carried out, and the puncture needle is inconvenient to be stably kept in an artery, so that the puncture needle is easy to puncture the artery due to unexpected shaking.

In order to solve the technical problem, the utility model provides an arterial puncture needle which comprises a puncture needle body, wherein one end of the puncture needle body is connected with an indwelling needle head, the inner walls of the puncture needle body and the indwelling needle head are connected with a needle core and a needle tube in a sliding manner, the needle core is connected with the needle tube, one end of the needle tube is connected with a needle cylinder, a lead is inserted into the puncture needle body and the indwelling needle head, through grooves matched with the lead are formed in the puncture needle body and the indwelling needle head, and an adjusting mechanism is arranged on the outer wall of the indwelling needle head.

Preferably, adjustment mechanism includes first arc piece, first arc piece and the outer wall connection who keeps somewhere the syringe needle, one side of first arc piece is rotated and is connected with second arc piece, is provided with the friction pad between first arc piece and the second arc piece, the bottom of second arc piece is provided with the slide bar, the outer wall sliding connection of slide bar has the sleeve pipe, sheathed tube outer wall threaded connection has adjusting bolt, and medical personnel rotate adjusting bolt is convenient for adjust and is kept somewhere the distance between syringe needle and the bandage, through setting up the friction pad to the use of cooperation first arc piece and second arc piece conveniently adjusts the inclination of pjncture needle body and keeping somewhere the syringe needle.

Preferably, the sheathed tube bottom is connected with the bandage, bandage upper surface and lower surface are provided with sub-magic subsides and wood magic subsides respectively, and through setting up sub-magic subsides and wood magic subsides, the convenience is fixed the bandage on the patient arm of different sizes, and then conveniently fixes the pjncture needle body and keeps somewhere the syringe needle, has ensured the stability of pjncture needle body and keeping somewhere the syringe needle.

Preferably, the outer wall of the indwelling needle head is provided with a kneading leaf, and the kneading leaf is arranged to facilitate the medical personnel to insert the puncture needle body on the indwelling needle head into the human body through the kneading leaf.

Preferably, the two sides of the kneading blade are both provided with anti-slip grooves, the inner walls of the anti-slip grooves are integrally formed with anti-slip particles, and the anti-slip grooves with the anti-slip particles are arranged, so that the friction force between the hand and the kneading blade is increased, and the phenomenon of hand release is avoided.

Preferably, the outer wall of the indwelling needle is provided with a sealing ring, the inner wall of the sealing ring is inconsistent with the outer wall of the wire, and the wire is prevented from accidentally slipping from the indwelling needle by the sealing ring.

Preferably, two inserted bars of a side-mounting mutual symmetry of cylinder, the slot with inserted bar looks adaptation is seted up to one side of keeping somewhere the syringe needle, the outer wall of inserted bar is provided with silica gel touch multitouch, through setting up silica gel touch multitouch, has increased the frictional force between inserted bar and the slot, not only conveniently takes out the noon closing member and needle tubing from pjncture needle body and keeping somewhere the syringe needle in, ensures simultaneously that the needle tubing is difficult for following the accident of keeping somewhere the syringe needle and droing under the non-manpower condition.

Preferably, one end of the adjusting bolt is integrally formed with a finger groove, and the finger groove increases the friction force between the hand and the adjusting bolt, so that the adjusting bolt can be conveniently rotated by medical personnel.

Compared with the prior art, the artery puncture needle provided by the utility model has the following beneficial effects:

1. according to the utility model, after the needle core and the needle tube are withdrawn from the puncture needle body and the indwelling needle head through the needle tube, the medical staff can slide the lead in the puncture needle body through the through groove and push the lead to the artery, so that the problems that the arterial puncture efficiency is influenced and air is easy to enter the artery through the indwelling needle head and the puncture needle body to cause infection due to long time interval between the withdrawal of the needle core and the lead pushing when the existing arterial puncture needle is used are solved, and the safety in use is improved because the air usually contains bacteria, viruses and the like.

2. According to the utility model, medical staff rotate the adjusting bolt, the distance between the indwelling needle head and the bandage is convenient to adjust, the friction pad is arranged, the friction pad is matched with the first arc-shaped block and the second arc-shaped block, the inclination angle of the puncture needle body and the indwelling needle head is convenient to adjust, the sub-magic tape and the wood magic tape are arranged, the bandage is convenient to fix on the arms of patients with different body types, the puncture needle body and the indwelling needle head are convenient to fix, the stability of the puncture needle body and the indwelling needle head is ensured, the above structure is matched for use, the puncture needle body is convenient to stably stay in an artery, and the puncture needle body is prevented from accidentally shaking to puncture the artery.

Drawings

FIG. 1 is a schematic view showing the overall construction of an arterial puncture needle;

FIG. 2 is a schematic sectional view of an indwelling needle of the arterial needle;

FIG. 3 is a schematic sectional view of a cannula of an arterial puncture needle;

FIG. 4 is an enlarged view of the structure at A in FIG. 1;

FIG. 5 is an enlarged view of the structure at B in FIG. 2;

fig. 6 is an enlarged view of the structure at C in fig. 2.

Reference numbers in the figures: 1. a puncture needle body; 2. keeping the needle head; 3. a needle core; 4. a needle tube; 5. a needle cylinder; 6. a wire; 7. a through groove; 8. a first arc-shaped block; 9. a second arc-shaped block; 10. a friction pad; 11. a slide bar; 12. a sleeve; 13. adjusting the bolt; 14. binding bands; 15. a sub-magic tape; 16. wooden magic tape; 17. kneading the hinge; 18. an anti-slip groove; 19. a seal ring; 20. inserting a rod; 21. a slot; 22. and the silica gel is against the contact block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that if the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are referred to herein, they are used only for convenience in describing the utility model and for the sake of simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered to be limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the first embodiment, as shown in fig. 1-6, an arterial puncture needle comprises a puncture needle body 1, one end of the puncture needle body 1 is connected with an indwelling needle head 2, the inner walls of the puncture needle body 1 and the indwelling needle head 2 are slidably connected with a needle core 3 and a needle tube 4, the needle core 3 is connected with the needle tube 4, one end of the needle tube 4 is connected with a needle tube 5, a conducting wire 6 is inserted on the puncture needle body 1 and the indwelling needle head 2, a through groove 7 matched with the conducting wire 6 is formed on the puncture needle body 1 and the indwelling needle head 2, the outer wall of the indwelling needle head 2 is provided with an adjusting mechanism, the adjusting mechanism comprises a first arc-shaped block 8, the first arc-shaped block 8 is connected with the outer wall of the indwelling needle head 2, one side of the first arc-shaped block 8 is rotatably connected with a second arc-shaped block 9, a friction pad 10 is arranged between the first arc-shaped block 8 and the second arc-shaped block 9, the bottom of the second arc-shaped block 9 is provided with a slide bar 11, the outer wall of the slide bar 11 is slidably connected with a sleeve 12, an adjusting bolt 13 is connected to the outer wall of the sleeve 12 in a threaded manner, a bandage 14 is connected to the bottom end of the sleeve 12, a sub magic tape 15 and a wood magic tape 16 are respectively arranged on the upper surface and the lower surface of the bandage 14, a finger groove is integrally formed at one end of the adjusting bolt 13 and increases the friction force between a human hand and the adjusting bolt 13, medical staff can conveniently rotate the adjusting bolt 13 to determine the pulsation position and the trend of an artery, a needle inlet point is selected, the needle point direction of the puncture needle body 1 is opposite to the blood flow direction, the included angle between the puncture needle body 1 and the skin is different according to the slimming degree of a patient and is generally 30-45 degrees, the needle is slowly inserted, when blood return is found in the needle cylinder 5, the remaining needle head 2 is pressed down and then pushed forward by 2-3 mm, blood return still exists in the needle cylinder 5, the needle core 3 and the needle cylinder 4 are slightly withdrawn, continuous blood return is still seen, the remaining needle head 2 can be pushed forward, and then the needle core 3 is withdrawn, The needle tube 4 and the needle cylinder 5 slide the lead 6 in the puncture needle body 1 through the through groove 7 and push the lead to the artery, thereby reducing the problem that the artery puncture efficiency is influenced and the air is easy to enter the artery through the remaining needle head 2 and the puncture needle body 1 to cause infection when the existing artery puncture needle is used, because the air usually contains bacteria, viruses and the like, the safety in use is improved, medical personnel rotate the adjusting bolt 13 to conveniently adjust the distance between the remaining needle head 2 and the bandage 14, through the arrangement of the friction pad 10 and the cooperation of the first arc-shaped block 8 and the second arc-shaped block 9, the inclination angles of the puncture needle body 1 and the remaining needle head 2 are conveniently adjusted, through the arrangement of the sub magic tape 15 and the wooden magic tape 16, the bandage 14 is conveniently fixed on the arms of patients with different body types, and then conveniently fix pjncture needle body 1 and keep somewhere syringe needle 2, guaranteed pjncture needle body 1 and keep somewhere the stability of syringe needle 2, the cooperation of above structure is used, and then is convenient for stably keep the pjncture needle body 1 in the artery to avoid pjncture needle body 1 to rock because of the accident and puncture the artery.

Second embodiment, on the basis of first embodiment, keep somewhere the outer wall of syringe needle 2 and install kneading leaf 17, the both sides of kneading leaf 17 all are provided with anti-skidding groove 18, and the inner wall integrated into one piece of anti-skidding groove 18 has anti-skidding granule, through setting up kneading leaf 17, make things convenient for medical personnel to insert the pjncture needle body 1 on keeping somewhere syringe needle 2 through kneading leaf 17 in the human body, through setting up anti-skidding groove 18 that has anti-skidding granule, increased the frictional force between staff and kneading leaf 17, and then avoid taking place the phenomenon of taking off one's hands.

In the third embodiment, on the basis of the first embodiment, the outer wall of the indwelling needle 2 is provided with the sealing ring 19, the inner wall of the sealing ring 19 is abutted against the outer wall of the lead 6, and the lead 6 is prevented from accidentally slipping off from the indwelling needle 2 by the sealing ring 19.

Fourth embodiment, on the basis of first embodiment, two inserted bars 20 that are symmetrical each other are installed to one side of cylinder 5, keep somewhere slot 21 of needle 2 one side offered with inserted bar 20 looks adaptation, the outer wall of inserted bar 20 is provided with silica gel touch pad 22, through setting up silica gel touch pad 22, increased the frictional force between inserted bar 20 and the slot 21, not only conveniently take out needle core 3 and needle tubing 4 from pjncture needle body 1 and keep somewhere in the needle 2, ensure that needle tubing 4 is difficult for unexpected the coming off in keeping somewhere needle 2 under the non-manpower condition simultaneously.

The working principle is as follows:

during puncture:

determining the pulsation position and trend of an artery, selecting a needle inserting point, wherein the needle point direction of a puncture needle body 1 is opposite to the blood flow direction, the included angle between the puncture needle body 1 and the skin is different according to the fat and thin degree of a patient and is generally an angle of 30-45 degrees, slowly inserting the needle, when blood return is found in a needle cylinder 5, pressing down an indwelling needle head 2 and further advancing the indwelling needle head 2 forwards by 2-3 mm, the blood return still exists in the needle cylinder 5, slightly withdrawing a needle core 3 and a needle tube 4, still continuously returning blood, pushing the indwelling needle head 2 forwards, withdrawing the needle core 3, the needle tube 4 and the needle cylinder 5, finally sliding a lead 6 in the puncture needle body 1 through a through groove 7 and pushing the lead to the artery, and further reducing the problems that the artery puncture efficiency is influenced and the infection easily occurs because the interval time between withdrawing the needle core 3 and pushing the lead 6 is long when the existing artery puncture needle is used, because the air usually contains bacteria, viruses and the like, the safety in use is improved.

When the puncture needle body 1 and the indwelling needle head 2 are fixed:

medical personnel rotate adjusting bolt 13, be convenient for adjust and keep somewhere the distance between syringe needle 2 and the bandage 14, through setting up friction pad 10, and the use of cooperation first arc piece 8 and second arc piece 9, conveniently adjust pjncture needle body 1 and keep somewhere the inclination of syringe needle 2, paste 15 and wooden magic through setting up sub magic, conveniently fix bandage 14 on the patient arm of different sizes, and then conveniently fix pjncture needle body 1 and keep somewhere syringe needle 2, the stability of pjncture needle body 1 with keep somewhere syringe needle 2 has been ensured, the cooperation of above structure is used, and then be convenient for stably keep pjncture needle body 1 in the artery, and avoid pjncture needle body 1 to rock because of the accident and puncture the artery.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides an artery puncture needle, its characterized in that, includes pjncture needle body (1), the one end of pjncture needle body (1) is connected with keeps somewhere syringe needle (2), the inner wall sliding connection of pjncture needle body (1) and keeping somewhere syringe needle (2) has nook closing member (3) and needle tubing (4), nook closing member (3) and needle tubing (4) are connected, the one end of needle tubing (4) is connected with cylinder (5), it has wire (6) to peg graft on pjncture needle body (1) and the syringe needle of keeping somewhere (2), set up logical groove (7) with wire (6) looks adaptation on pjncture needle body (1) and the syringe needle of keeping somewhere (2), the outer wall of keeping somewhere syringe needle (2) is provided with adjustment mechanism.

2. An arterial puncture needle according to claim 1, characterized in that the adjusting mechanism comprises a first arc-shaped block (8), the first arc-shaped block (8) is connected with the outer wall of the indwelling needle (2), one side of the first arc-shaped block (8) is rotatably connected with a second arc-shaped block (9), a friction pad (10) is arranged between the first arc-shaped block (8) and the second arc-shaped block (9), a sliding rod (11) is arranged at the bottom of the second arc-shaped block (9), the outer wall of the sliding rod (11) is slidably connected with a sleeve (12), and the outer wall of the sleeve (12) is in threaded connection with an adjusting bolt (13).

3. An arterial puncture needle according to claim 2, characterized in that a binding band (14) is connected to the bottom end of the sleeve (12), and a sub magic tape (15) and a wood magic tape (16) are respectively arranged on the upper surface and the lower surface of the binding band (14).

4. An arterial needle according to claim 1, characterised in that the outer wall of said indwelling needle (2) is fitted with a pinch hinge (17).

5. An arterial puncture needle according to claim 4, characterized in that the two sides of the kneading lobes (17) are provided with anti-slip grooves (18), the inner walls of the anti-slip grooves (18) are integrally formed with anti-slip particles.

6. An arterial puncture needle according to claim 1, characterized in that the outer wall of the indwelling needle (2) is provided with a sealing ring (19), the inner wall of the sealing ring (19) abutting the outer wall of the guide wire (6).

7. An arterial puncture needle according to claim 2, characterized in that two symmetrical insertion rods (20) are arranged on one side of the needle cylinder (5), a slot (21) matched with the insertion rod (20) is arranged on one side of the indwelling needle (2), and a silica gel contact block (22) is arranged on the outer wall of the insertion rod (20).

8. An arterial puncture needle according to claim 2, characterized in that one end of the adjusting bolt (13) is integrally formed with a finger groove.

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