CN213310170U - Artery indwelling needle - Google Patents

Abstract

The utility model discloses an artery indwelling needle, which comprises a puncture needle, a sliding device and a power device which are arranged at the bottom of a needle seat of a tube placing device and a puncture needle tail end which are arranged outside the puncture needle and a guide wire which runs through the puncture needle and is connected with a sliding block in the sliding device. The utility model discloses a problem of the needle body and the extra seal wire of putting into has been avoided singlehanded to the setting of two gasbags, has improved the success rate of putting the pipe greatly, is fit for using widely in clinic.

Description

Artery indwelling needle

Technical Field

The utility model belongs to the field of medical equipment, concretely relates to artery indwelling needle.

Background

With the continuous development of medical technology, how to save the labor cost of medical staff as much as possible while treating, reduce the uncomfortable feeling of patients and relieve the pain of patients becomes a key. The artery puncture catheter placement technology is also increasingly applied to clinic, after a puncture needle is punctured, the existing artery retention needle can only be used for stabilizing the artery retention needle by one hand, the other hand needs to manually complete the placement of a guide wire, the success rate is not high, the success rate is mainly dependent on the skilled operation experience of medical staff, if the artery retention needle is medical staff with unskilled actions, the success rate is lower, the efficiency of the medical staff is greatly reduced, and the pain of a patient is increased.

The reason that the success rate is not high is mainly that the elasticity and the toughness of the artery wall are large, one hand stabilizes the arterial indwelling needle and has insufficient stability, the other hand needs to be placed with a guide wire, the guide wire is difficult to avoid and shakes, the degree of insufficient stability is aggravated, and the needle point is easy to shift, so that the adverse result of the failure of catheterization is generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an artery indwelling needle specifically realizes through following technical scheme:

an artery indwelling needle comprises a puncture needle, a tube placing device, a power device and a guide wire, wherein the tube placing device, the power device and the guide wire are sleeved outside the puncture needle;

the tube placing device comprises a catheter and an indwelling seat, the indwelling seat comprises a port, and the port of the indwelling seat is in transition fit with the needle seat;

the needle base comprises a base bottom, a sliding device is arranged at the base bottom of the needle base, and the sliding device comprises a sliding rail and a sliding block capable of sliding on the sliding rail;

the power device comprises a first air bag, a second air bag and a connecting channel for communicating the first air bag and the second air bag, and the second air bag is arranged at one end of the sliding rail and is connected with the sliding block;

the guide wire penetrates through the first through hole and is connected with the sliding block.

The utility model has the advantages that the volume of the second air bag is increased by pressing the first air bag, so that the sliding block is pushed to slide on the sliding rail, and the automatic placement of the guide wire is realized (the guide wire only needs to be placed in 1-1.5 cm in clinical operation, and the utility model can completely meet the requirements); simultaneously, owing to can both hands grip simultaneously and keep somewhere the needle (can simultaneously with first gasbag with the utility model discloses an it together grips to keep somewhere the needle), need not to take one hand out and carry out solitary seal wire and put into the operation for the artery is kept somewhere the needle body and is more stable, is difficult to take place the skew. In addition, the indwelling seat can be provided with a conventional hemostatic valve in the prior art, and the blood returning cavity or the observation cavity only needs to be communicated with the first through hole, which has no technical difficulty for a person skilled in the art.

In some preferred implementation cases, the base of the needle base is further provided with a containing chamber, the containing chamber is provided with a head end and a tail end, a blood return observation cavity is arranged inside the containing chamber, the sliding device is arranged at the tail end of the containing chamber, and the blood return observation cavity is communicated with the first through hole. The containing chamber (equivalent to a blood returning chamber or an observation chamber in the prior art for observing pulsating blood returning during puncture) is arranged at the bottom of the needle seat, the structure is simplest, the operation is most convenient, and the production cost is lowest.

In some preferred implementations, the first bladder is disposed on an outer wall of the containment chamber. Directly set up first gasbag on the outer wall that holds the room, make things convenient for medical staff direct with the utility model discloses an artery to keep somewhere needle and first gasbag and together grip for the convenience of medical staff's operation further increases, and the structure is simpler and compact.

In some preferred embodiments, a waterproof breathable film is disposed at the tail end of the accommodating chamber, and a fourth through hole through which the guide wire can pass is disposed on the waterproof breathable film. Waterproof breathable films are commonly applied materials, and have the main function of preventing liquid such as blood from overflowing or splashing out, but the passing of gas cannot be influenced, so that the pressure imbalance between the inside and the outside of a human body is avoided; in addition, although pulsation blood returning exists during arterial puncture, the quantity of the pulsation blood returning is not large, and the situation that only the fourth through hole for the guide wire to pass through in the waterproof breathable film does not cause blood overflow is avoided.

In some preferred embodiments, an elastic cushion is arranged inside the retention seat, the elastic cushion is provided with a second through hole through which the puncture needle can pass, a third through hole is arranged on the tube wall of the retention seat, and the retention seat further comprises a pressure rod which passes through the third through hole and is connected with the elastic cushion. The utility model discloses be equipped with the elastic cushion in keeping somewhere the seat, except that the second through hole that supplies the pjncture needle to pass through, the elastic cushion has played the effect that seals and has kept somewhere the seat, when taking the pjncture needle out, through pressing the depression bar for the elastic cushion takes place to deform, thereby seals the second through hole in the elastic cushion, realizes the effect of "hemostatic valve", compares the on-off hemostatic valve in the current, the utility model discloses a push type "hemostatic valve" operation get up can be more timely, and its structure is also more simple, at the instant of taking out, just can seal at once.

In some preferred embodiments, a handle is further provided at one end of the pressure lever. The handle is arranged, so that medical staff can use the medical pillow more conveniently, and the comfort is better.

In some preferred embodiments, the outer wall of the retention seat is further provided with a fixed wing. The fixed wing is arranged to facilitate holding by medical staff and fixing after puncture and catheterization.

In some preferred embodiments, the fixed wing is provided with an anti-slip pattern. The anti-skid lines are arranged, so that the condition that the medical staff is affected by puncture and catheterization due to the fact that hands slide can be avoided.

In some preferred embodiments, a one-way valve is provided on the connecting channel. Set up the check valve, can make and hold the accommodation chamber simultaneously and press the hand of first gasbag and need not to last hard, save medical staff's manpower, also can avoid appearing the condition that the hand trembles, if need reset and carry out putting into again of seal wire, then can reset the check valve, then press first gasbag again and carry out putting into again of seal wire, here also need not to let out the hand of holding accommodation chamber and first gasbag and operate, can directly operate with the little finger and reset, the check valve can adopt conventional check valve such as plectrum formula, this does not have any degree of difficulty to technical staff in the field.

The utility model has the advantages that: the utility model discloses a problem of the needle body and the extra seal wire of putting into has been avoided singlehanded to the setting of two gasbags, has improved the success rate of putting the pipe greatly, is fit for using widely in clinic.

Drawings

FIG. 1 is a schematic sectional view of an arterial indwelling needle according to embodiment 1;

fig. 2 is a schematic top view of the arterial indwelling needle of example 2 with the needle hub, power device, slide, guidewire and containment chamber removed.

In the above-described figures 1 and 2,

the puncture needle comprises a puncture needle 100, a catheter 200, a guide wire 300, an indwelling seat 400, an elastic cushion 410, a handle 420, a fixed wing 430, a needle seat 500, a blood return observation cavity 600, a waterproof breathable film 610, a sliding rail 700, a sliding block 800, a first air bag 910, a second air bag 920 and a connecting channel 930.

Detailed Description

The conception and the technical effects of the present invention will be clearly and completely described below with reference to the embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Example 1:

an arterial retention needle, the structure of which is shown in figure 1, comprises: a puncture needle 100, a tube placing device, a containing chamber, a sliding device, a power device and a guide wire 300;

the puncture needle 100 comprises a tip and a tail end, a first through hole is formed in the direction from the tip to the tail end, and a needle seat 500 is arranged at the tail end of the puncture needle 100;

the tube placing device is sleeved outside the puncture needle 100 and comprises a catheter 200 and an indwelling seat 400, the port of the indwelling seat 400 is in transition fit with the needle seat 500, an elastic cushion 410 is arranged inside the indwelling seat 400, the elastic cushion 410 is provided with a second through hole through which the puncture needle 100 can pass, the tube wall of the indwelling seat 400 is provided with a third through hole, the indwelling seat further comprises a pressure lever, the pressure lever passes through the third through hole and is connected with the elastic cushion 410, and the top end of the pressure lever is provided with a handle 420;

the accommodating chamber comprises a head end and a tail end, a blood return observation cavity 600 is arranged in the accommodating chamber, the head end of the accommodating chamber is connected with the needle base 500, the blood return observation cavity 600 is communicated with the first through hole, a waterproof breathable film 610 is arranged at the tail end of the accommodating chamber, and a fourth through hole through which the guide wire 300 can pass is formed in the waterproof breathable film 610;

the sliding device comprises a sliding rail 700 arranged at the tail end of the accommodating chamber and a sliding block 800 capable of sliding on the sliding rail 700;

the power device comprises a first air bag 910, a second air bag 920 and a connecting channel 930 for communicating the first air bag 910 with the second air bag 920, the first air bag 910 is arranged on the outer wall of the accommodating chamber, and the second air bag 920 is arranged at one end of the sliding rail 700 and is connected with the sliding block 800;

the guide wire 300 passes through the first through-hole and the flashback visualization chamber 600, and is fixed to the slider 800.

Example 2:

an arterial indwelling needle having the same structure as in example 1, but having a fixed wing 430 provided on the outer wall of an indwelling needle 400, and having an anti-slip pattern (not shown) provided on the fixed wing 430, is structured as shown in fig. 1 to 2.

Radial artery puncture is taken as an example to illustrate the use method: the artery indwelling needle of the utility model is held before puncture after conventional preparation, disinfection and puncture point anesthesia, the puncture needle 100 and the skin are in about 30 degrees, the radial artery trend is found by the left hand, then the sharp end of the puncture needle 100 is punctured for puncture, when pulsating blood returning entering through the first through hole is seen in the blood returning observation cavity 600, the needle insertion is stopped, the fixed wing 430 of the indwelling seat 400 is held by the left hand, the first air bag 910 is also held by the right hand while holding the containing chamber (the effect of stabilizing the artery indwelling needle by both hands is realized, here, the right-handed left-handed person is taken as an example), at the moment, when the artery indwelling needle is stabilized, the first air bag 910 is slowly pressed, gas enters the second air bag 920 through the connecting pipeline 930, the volume of the second air bag 920 is enlarged, so that the sliding block 800 is pushed to slide on the sliding rail 700, so as to drive the advancing of the guide wire 300, the automatic insertion of the guide wire 300 is realized, after the successful insertion, the handle 420 is pressed by the thumb of the left hand or other fingers (the force required for just drawing out the puncture needle 100 is kept, which is very easy to understand for medical staff or ordinary people), the right hand is slowly drawn out, so that the indwelling seat 400 is separated from the needle seat 500, the puncture needle 100 and the guide wire 300 are drawn out, the handle 420 is pressed by applying force immediately at the moment when the puncture needle 100 is completely drawn out, the second through hole in the elastic cushion 410 is closed, then the port of the indwelling seat 400 is connected with the extension tube of the pressure sensor by the right hand, and finally the handle 420 is loosened, and the intubation device and the extension tube of the pressure sensor are fixed.

The method of using the arterial indwelling needle of embodiment 1 is substantially the same as the above-described method of use, except that the indwelling needle 400 is held in embodiment 1, and the stationary wings 430 are held in embodiment 2.

Claims (9)

1. An arterial indwelling needle is characterized by comprising a puncture needle, a tube placing device, a power device and a guide wire, wherein the tube placing device, the power device and the guide wire are sleeved outside the puncture needle;

the tube placing device comprises a catheter and an indwelling seat, the indwelling seat comprises a port, and the port of the indwelling seat is in transition fit with the needle seat;

the needle base comprises a base bottom, a sliding device is arranged at the base bottom of the needle base, and the sliding device comprises a sliding rail and a sliding block capable of sliding on the sliding rail;

the power device comprises a first air bag, a second air bag and a connecting channel for communicating the first air bag and the second air bag, and the second air bag is arranged at one end of the sliding rail and is connected with the sliding block;

the guide wire penetrates through the first through hole and is connected with the sliding block.

2. The arterial retention needle according to claim 1, wherein the base of the needle base is further provided with a receiving chamber, the receiving chamber is provided with a head end and a tail end, a blood return observation cavity is arranged inside the receiving chamber, the sliding device is arranged at the tail end of the receiving chamber, and the blood return observation cavity is communicated with the first through hole.

3. The arterial needle of claim 2 wherein the first balloon is disposed on an outer wall of the containment chamber.

4. The arterial indwelling needle according to claim 2, wherein the tail end of the accommodating chamber is provided with a waterproof breathable membrane, and the waterproof breathable membrane is provided with a fourth through hole through which the guide wire can pass.

5. The arterial indwelling needle according to claim 1, wherein an elastic cushion is provided inside the indwelling base, the elastic cushion is provided with a second through hole through which the puncture needle can pass, a third through hole is provided on a tube wall of the indwelling base, and the indwelling base further comprises a pressing rod which passes through the third through hole and is connected with the elastic cushion.

6. The arterial needle according to claim 5, characterized in that one end of said pressure bar is further provided with a handle.

7. The arterial retention needle according to claim 1, characterized in that the retention seat is further provided with a fixed wing on the outer wall.

8. The arterial retention needle according to claim 7, wherein the fixed wing is provided with anti-slip lines.

9. The arterial needle according to claim 1, characterized in that said connection channel is provided with a one-way valve.

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