CN212438600U - Disposable arterial manometry indwelling needle - Google Patents

Abstract

The utility model provides a needle is kept somewhere in disposable artery pressure measurement relates to medical instrument technical field, it is including connecting gradually and the pipe that keeps somewhere of inside intercommunication, hyaline tube and buffer tube, the one end that the neighbouring buffer tube of hyaline tube is fixed with isolation stopper and disinfect box in proper order, it has the disinfection sponge to fill in the disinfect box, sliding connection has the handle of withdrawing the needle in the disinfect box, the handle of withdrawing the needle is fixed in the one end of steel needle, the other end of steel needle passes isolation stopper in proper order, hyaline tube and stay tube, the one end that the hyaline tube was kept away from to the buffer tube has the blood drawing vessel and pressure-measuring pipe. Solves the problems that the artery pressure measurement indwelling needle in the prior art is not easy to place a tube, cross infection is easy to cause and the pressure measurement is not accurate.

Description

Disposable arterial manometry indwelling needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a disposable artery pressure measuring indwelling needle.

Background

The arterial manometry indwelling needle is used for being embedded into an arterial blood vessel to monitor arterial blood pressure, can continuously and accurately detect arterial blood pressure, can be used for repeatedly extracting arterial blood samples to perform blood gas analysis and cardiac output measurement, and is used for patients who cannot measure blood pressure by a non-invasive method, need low-temperature anesthesia and controlled blood pressure reduction, major surgical operations, particularly patients who have extracorporeal circulation and intracardiac direct-view operations, patients who have abnormal blood pressure rise caused by various reasons, and the like.

Currently, the artery manometry indwelling needle used clinically has the following main defects: in order to improve the convenience of the tube placing operation of medical personnel, the needle tube is often arranged to be longer, the length of the head part can reach 45mm, the needle feeding head is often bent, and the needle tube can be bent or even folded due to a larger force, so that the tube placing is not facilitated, and the resource waste is caused; after the puncture to the artery, the tail part is not provided with a buffer pipeline, so that blood can easily flow out, peripheral blood stain spots are caused, the operation surface is not clean, and the infection chance is increased; the front end of the needle tube is easily blocked by blood coagulation substances in blood, so that the arterial waveform on the monitor is gradually flattened, and the error of the monitored data is caused; when the steel needle is withdrawn, blood of a patient is easily remained on the steel needle, and cross infection is easily caused.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem among the prior art, the utility model provides a needle is kept somewhere to disposable artery pressure measurement has solved the artery pressure measurement among the prior art and has kept somewhere the needle and be difficult to put the pipe, arouse cross infection and the unsafe problem of pressure measurement easily.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the utility model provides a needle is kept somewhere in disposable artery pressure measurement, it is including connecting gradually and the inside pipe of keeping somewhere of intercommunication, hyaline tube and buffer tube, the one end that the hyaline tube is close to the buffer tube is fixed with isolation stopper and disinfect box in proper order, it has the disinfection sponge to fill in the disinfect box, sliding connection has the handle of withdrawing the needle in the disinfect box, the one end that the handle of withdrawing the needle is fixed in the steel needle, the other end of steel needle passes isolation stopper in proper order, hyaline tube and the pipe of keeping somewhere, the one end that the hyaline tube was kept away from to the buffer tube.

The utility model has the advantages that: can pierce through the skin tissue of patient and blood vessel and put into arterial blood vessel with lieing in the pipe through the steel needle, blood pressure in the artery can flow into the hyaline tube fast under the blood pressure effect, whether have blood in observing the hyaline tube can judge whether the pipe is put successfully, and the medical personnel of being convenient for in time adjust the direction of inserting the needle and the depth of inserting the needle, reduce patient's misery, also improved the convenience of medical personnel's operation.

After the tube is successfully placed, the steel needle needs to be pulled out, medical staff hooks the needle removing handle to pull the steel needle backwards, the withdrawn steel needle absorbs and sterilizes blood on the surface through a disinfection sponge in the disinfection box, the withdrawn steel needle is safe and sanitary, cross infection caused by blood of a patient carried on the steel needle is avoided, and the danger that the medical staff are stabbed by the steel needle is reduced.

The buffer tube can contain the blood entering from the transparent tube and provide enough buffer space for the blood to flow so as to prevent the blood from flowing outside to cause cross infection; the three-way valve of connecting on the buffer tube can satisfy multiple demand as required, for example at monitoring blood pressure in-process, draws blood through the circulation direction that changes the three-way valve and detects, has improved the convenience of operation.

Drawings

Fig. 1 is a front view of a disposable arterial manometry indwelling needle.

Fig. 2 is a top view of the disposable arterial manometry indwelling needle.

Wherein, 1, an indwelling tube; 2. a transparent tube; 3. a buffer tube; 4. an isolation plug; 5. a sterilizing box; 51. sterilizing the sponge; 511. cutting a line; 52. a chute; 53. a protrusion point; 6. a needle withdrawing handle; 61. a connecting rod; 62. a crescent plate; 7. a steel needle; 8. a three-way valve; 9. drawing a blood vessel; 10. a piezometric tube; 11. a fixed wing; 12. a sealing cap; 13. and connecting threads.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1 and 2, the disposable arterial manometry indwelling needle comprises an indwelling tube 1, a transparent tube 2 and a buffer tube 3 which are sequentially connected and internally communicated, wherein an isolating plug 4 and a disinfection box 5 are sequentially fixed at one end of the transparent tube 2 adjacent to the buffer tube 3, a disinfection sponge 51 is filled in the disinfection box 5, a needle withdrawing handle 6 is slidably connected in the disinfection box 5, the needle withdrawing handle 6 is fixed at one end of a steel needle 7, the other end of the steel needle 7 sequentially penetrates through the isolating plug 4, the transparent tube 2 and the indwelling tube 1, and one end of the buffer tube 3 far away from the transparent tube 2 is connected with a blood drawing tube 9 and a piezometric tube 10 through a three-way valve 8.

The isolating plug 4 can keep complete sealing after the steel needle 7 is drawn out, and liquid leakage and bacterial pollution are prevented. A rotary handle is fixed on the valve core in the three-way valve 8, and OFF characters are marked on the rotary handle. If the OFF word is positioned at the piezometric tube 10, the buffer tube 3 is communicated with the blood extraction tube 9, and blood flows out of the blood extraction tube 9 and can be sampled; if the OFF word is located at the blood drawing tube 9, the buffer tube 3 is connected with a pressure measuring tube 10 which is connected with the liquid outlet end of a pressure sensor filled with physiological saline and is used for measuring the arterial blood pressure. The blood flowing direction can be easily changed by rotating the handle, and the operation is convenient.

Withdraw needle handle 6 and include the connecting rod 61 of vertical setting, the sealed tip that is fixed in steel needle 7 in bottom of connecting rod 61 can be that the bottom width of connecting rod 61 is greater than the external diameter of steel needle 7, makes connecting rod 61 can whole cover the tip of steel needle 7 and through sealed clearance of gluing fixed connection and sealed junction.

The top of connecting rod 61 passes behind the roof of disinfect box 5 and crescent 62 fixed connection, as shown in fig. 2, crescent 62 is the crescent, is the cambered surface of indent in one side of crescent 62 orientation indwelling pipe 1, can set up the protruding increase frictional force that gets up of antiskid on the cambered surface. The cambered surface is convenient for medical staff's fingers to hook to pull the needle withdrawing handle 6, and then the steel needle 7 is pulled out stably.

Be provided with the spout 52 that supplies connecting rod 61 to pass on the roof of disinfect box 5, spout 52 is the bar through-hole that sets up on the roof of disinfect box 5, and the length direction of this bar through-hole is the direction of withdrawing from steel needle 7 promptly, and steel needle 7 and withdraw of needle handle 6 finally can roll off disinfect box 5 completely, so spout 52 runs through disinfect box 5 along the one end of keeping away from indwelling tube 1, makes withdraw of needle handle 6 can the roll-off smoothly.

The disinfection sponge 51 is a medical sponge soaked with disinfectant. The sterilizing sponge 51 below the sliding groove 52 is provided with a cutting line 511, the cutting line 511 is a dividing line formed by cutting the sterilizing sponge 51 in the longitudinal direction, and the bottom end of the connecting rod 61 is positioned in the cutting line 511, so that the connecting rod 61 can slide along the cutting line 511. Because the sponge has elasticity, connecting rod 61 extrudees the sponge and can strut the sponge and make connecting rod 61 pass through, and the sponge can resume deformation under the elasticity effect again and push and suck the blood on the steel needle 7 surface and scrub the disinfection with steel needle 7 surface that comes the next through 7 surface extrusion of butt joint after losing the extrusion of connecting rod 61.

The two opposite outer side surfaces of the disinfection box 5 are integrally provided with the protruding points 53, the two side surfaces provided with the protruding points 53 are positioned below the left side and the right side of the crescent 62 and are used as needle holding handles for medical staff to hold when pushing a needle into an arterial blood vessel of a patient and to usually hold when withdrawing the needle, the thumb and the middle finger preferably hold the two side surfaces provided with the protruding points 53 on the disinfection box 5, and the index finger hooks the crescent 62 to withdraw the needle. The medical nursing bed is more compact in structure, stronger in functionality, more in accordance with ergonomics and more convenient for the medical care personnel to operate.

The buffer tube 3 is disposed below the sterilizing chamber 5, and the bottom surface of the sterilizing chamber 5 is fixed to the top surface of the buffer tube 3. Through the fixed of disinfect box 5, can provide the bigger holding power of buffer tube 3, avoid buffer tube 3 to hang and involve patient's tissue, improved this stability of keeping somewhere after the needle is fixed.

The bilateral symmetry fixedly connected with stationary vane 11 of buffer tube 3, the material of stationary vane 11 is silica gel. The stationary vane 11 is used for increasing this area of contact who keeps somewhere needle and skin, reduces local extrusion force, supplies medical adhesive tape winding to fix human skin on the stationary vane 11, and the silica gel material has good close skin nature and compliance, and the extrusion force can be alleviated to the compliance, lets this place that keeps somewhere needle and patient skin paste not have the pressure sore appearance.

Keep somewhere pipe 1's inner wall coating has the anticoagulation coating, and the heparin coating material is preferred to the anticoagulation coating, and heparin coating material derives from pig intestinal mucosa, has higher antithrombotic nature, can not take place rejection with the human body simultaneously, can let to keep somewhere pipe 1 can not blockked up by the blood coagulation material of blood the inside, makes the artery pressure measurement more accurate.

The buffer tube 3 is a hose, preferably made of the same material as the infusion tube, so that the buffer tube can not be plastically deformed in the packaging bag, and can still keep the straight shape after being unsealed, thereby facilitating the repeated implementation of the tube placing operation of medical personnel, namely all the indwelling needles always keep the same shape, the medical personnel can always operate in the same steps, and the familiarity and the tube placing success rate are improved.

The end parts of the blood drawing tube 9 and the pressure measuring tube 10 are sealed through a sealing cap 12, the sealing cap 12 is a heparin cap, the end parts of the blood drawing tube 9 and the pressure measuring tube 10 are provided with connecting threads 13, and the connecting threads are integrally formed on external threads at the end parts of the blood drawing tube 9 and the pressure measuring tube 10.

When the disposable puncture needle is used, the packaging bag is opened, the puncture area is disinfected, a towel is laid around the puncture point, the indwelling needle is taken out, the three-way valve is opened to be communicated with the air, the operation handles (namely two side surfaces of the disinfection box 5 provided with the protruding points 53) are held by hands to puncture the artery according to the artery puncture method, when blood is observed in the transparent tube 2, the crescent plate 62 is pulled to withdraw the needle, the indwelling needle is fixed with the surrounding skin by using medical adhesive plaster after the needle is withdrawn, the sealing cap 12 is taken down, the pressure measuring tube 10 is connected with the liquid outlet end of the pressure sensor filled with physiological saline, and zero calibration is carried out.

Claims (10)

1. The utility model provides a needle is kept somewhere in disposable artery pressure measurement, its characterized in that, keeps somewhere pipe (1), hyaline tube (2) and buffer tube (3) including connecting gradually and inside intercommunication, hyaline tube (2) are close to the one end of buffer tube (3) is fixed with in proper order keeps apart stopper (4) and disinfect box (5), it has disinfection sponge (51) to fill in disinfect box (5), sliding connection has in disinfect box (5) and removes needle handle (6), it is fixed in the one end of steel needle (7) to remove needle handle (6), the other end of steel needle (7) passes in proper order keep apart stopper (4), hyaline tube (2) and keep somewhere pipe (1), buffer tube (3) are kept away from the one end of hyaline tube (2) is connected with and takes out blood vessel (9) and pressure-measuring pipe (10) through three-way valve (8).

2. The disposable arterial manometry indwelling needle according to claim 1, wherein the needle withdrawing handle (6) comprises a vertically arranged connecting rod (61), the bottom end of the connecting rod (61) is hermetically fixed at the end of the steel needle (7), the top end of the connecting rod (61) passes through the sterilizing box (5) and then is fixedly connected with a crescent plate (62), and the crescent plate (62) is provided with an arc surface bending towards the direction of the indwelling tube (1).

3. The disposable arterial manometry indwelling needle according to claim 2, wherein a sliding groove (52) for the connecting rod (61) to pass through is provided on a top plate of the sterilizing box (5), the sliding groove (52) penetrates through the sterilizing box (5) along one end far away from the indwelling tube (1), a cutting line (511) is provided on the sterilizing sponge (51) below the sliding groove (52), and the bottom end of the connecting rod (61) is located in the cutting line (511).

4. The disposable arterial manometry indwelling needle according to claim 1, wherein the opposite outer sides of the sterilizing chamber (5) are provided with the protruding points (53).

5. The disposable arterial manometry indwelling needle according to claim 1, wherein the buffer tube (3) is disposed below the sterilizing chamber (5), and the bottom surface of the sterilizing chamber (5) is fixedly connected to the top surface of the buffer tube (3).

6. The disposable arterial manometry indwelling needle according to claim 1 or 5, wherein fixing wings (11) are provided on both sides of the buffer tube (3), and the fixing wings (11) are made of silica gel.

7. The disposable arteriometric indwelling needle according to claim 1, wherein the inner wall of the indwelling tube (1) is coated with an anticoagulant coating.

8. The disposable arterial manometry indwelling needle according to claim 1, wherein the buffer tube (3) is a hose.

9. The disposable arterial manometry indwelling needle according to claim 1, characterized in that the end portions of the blood drawing tube (9) and the manometric tube (10) are sealed by a sealing cap (12), and the end portions of the blood drawing tube (9) and the manometric tube (10) are provided with a connecting thread (13).

10. The disposable arterial manometry indwelling needle according to claim 1, wherein the sterilizing sponge (51) is a medical sponge soaked with a sterilizing liquid.

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