CN217660059U - ECMO arteriovenous puncture rapid expansion kit - Google Patents

Abstract

The utility model discloses a quick expansion external member of ECMO arteriovenous puncture relates to vascular expander technical field. The utility model discloses a pipe, the one end surface of pipe has set firmly ring one, the surface slip cover of pipe is equipped with ring two, ring one with it installs a plurality of billet silk to be annular array between the opposite side of ring two. The utility model discloses when carrying out vasodilatation to the patient, insert the one end of pipe and establish to the internal blood vessel of patient in, adjusting part adjusts two edges of ring and slides on the pipe and is close to ring one, ring two extrudees with a pair of a plurality of billet silk with the ring, thereby it is crooked to make a plurality of billet silk take place deformation in step, expand the support to the blood vessel after a plurality of billet silk deformation, slide the distance that is close to ring one through adjusting two rings, with the deformation range of buckling that changes the billet silk, with the effect of adjusting the vasodilatation size that reaches, need not to change different expanders when expanding the blood vessel, the time to vasodilatation has been reduced.

Description

ECMO arteriovenous puncture rapid expansion kit

Technical Field

The utility model relates to a blood vessel expander technical field, concretely relates to quick expansion external member of ECMO arteriovenous puncture.

Background

ECMO is a continuous in vitro life support (ECLS) means, and the functions of the heart and the lung are completely or partially replaced by in vitro equipment for a long time, so that the heart and the lung can be fully rested, and time is provided for curing and recovering the functions of the heart and lung diseases. The traditional Chinese medicine composition is mainly clinically applied to patients with reversible respiratory failure and circulatory failure with acute, severe and ineffective conventional treatment and high fatality rate. The ECMO arteriovenous vessel puncture dilation technology is characterized in that an ECMO vessel placing guide wire (ultra-smooth guide wire) is placed through a vessel puncture needle, at the moment, 50-100U/kg of heparin load is required to be given before intubation is placed (the blood coagulation function of a patient is concerned, the dosage of heparin is optimized), the guide wire enters a proper depth of a vessel, at the moment, the vital signs of the patient are concerned, and particularly, whether arrhythmia and the like are concerned. If the guide wire is unsmooth and resistant when entering the blood vessel and can not forcibly enter the guide wire, reasons need to be checked to ensure that the guide wire can enter the blood vessel smoothly and safely to reach a proper depth. According to the vascular state of a patient, the vascular dilator is used step by step, the skin and the subcutaneous tissue of the punctured blood vessel are gradually dilated along the guide wire, in the dilation process, the skin is cut by the blade according to the size of the ECMO cannula, the skin cannot be cut too much, bleeding and the like are avoided, and the dilator and the ECMO cannula are guaranteed to smoothly enter the blood vessel. However, the existing puncture dilator needs to be used singly, and dilators with different thicknesses need to be used for gradual dilation during puncture, so that the time for completing dilation is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: can not expand step by step for solving current expander, the longer problem of expansion time, the utility model provides a quick expansion external member of ECMO arteriovenous puncture.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a quick expansion external member of ECMO arteriovenous puncture, includes the pipe, the one end surface of pipe has set firmly ring one, the surface slip cover of pipe is equipped with ring two, ring one with it installs a plurality of billet silk to be annular array between the opposite side of ring two, install on the pipe and be used for adjusting two gliding adjusting part of ring.

Furthermore, the adjusting component comprises a fixing plate fixedly arranged at one end, far away from the first ring, of the catheter, a corrugated hose is connected between the fixing plate and the second ring and sleeved on the catheter, an air pipe is communicated with the corrugated hose, and the end part of the air pipe is communicated with an air bag.

Furthermore, an annular sliding groove is formed in the outer surface of the guide pipe, the second circular ring is slidably sleeved on the annular sliding groove, and a return spring sleeved on the annular sliding groove is installed on one side, close to the first circular ring, of the second circular ring.

Furthermore, a limiting groove is formed in the outer surface of the annular sliding groove along the length direction of the annular sliding groove, a limiting block is constructed on the inner wall of the second circular ring, and the limiting block is inserted into the limiting groove in a sliding mode.

Furthermore, the outer surface of one end of the conduit, which is far away from the first circular ring, is provided with anti-skid teeth in an annular array.

Further, one end of the conduit close to the first circular ring is in a conical structure, and the end is processed by an obtuse angle.

The utility model has the advantages as follows:

1. when carrying out vasodilatation to the patient, insert the one end of pipe and establish to the internal blood vessel of patient, it is close to ring one to slide on the pipe through adjusting part regulation ring two, ring two extrudees with a pair of a plurality of billet silk with the ring, thereby it is crooked to make a plurality of billet silk take place deformation in step, expand the support to the blood vessel after a plurality of billet silk deformation, slide the distance that is close to ring one through adjusting ring two, with the range of deformation of buckling that changes the billet silk, with the effect of adjusting the vasodilatation size, need not to change different expanders when expanding the blood vessel, the time to vasodilatation has been reduced, be favorable to the treatment.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a plan elevation view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 isbase:Sub>A sectional view taken alongbase:Sub>A linebase:Sub>A-base:Sub>A of fig. 2 according to the present invention;

fig. 5 is a sectional view taken along line B-B of fig. 3 according to the present invention;

FIG. 6 is an enlarged view of the present invention at C in FIG. 5;

reference numerals: 1. a conduit; 2. a first circular ring; 3. a second circular ring; 4. steel strip wires; 5. an adjustment assembly; 6. a limiting groove; 7. a limiting block; 8. anti-slip teeth; 9. an annular chute; 10. a return spring; 51. a fixing plate; 52. a corrugated hose; 53. an air pipe; 54. an air bag.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

As shown in fig. 1, fig. 2 and fig. 5, a rapid expansion kit for ECMO arteriovenous puncture, including a catheter 1, a first ring 2 is fixedly arranged on an outer surface of one end of the catheter 1, a second ring 3 is slidably sleeved on an outer surface of the catheter 1, a plurality of steel wires 4 are arranged between the first ring 2 and the second ring 3 in an annular array manner, an adjusting component 5 for adjusting the sliding of the second ring 3 is arranged on the catheter 1, when the vascular expansion is performed on a patient, one end of the catheter 1 is inserted into a blood vessel in the patient, the second ring 3 is adjusted by the adjusting component 5 to slide along the catheter 1 to be close to the first ring 2, the second ring 3 and the first ring 2 extrude the plurality of steel wires 4, so that the plurality of steel wires 4 are deformed and bent synchronously, the plurality of steel wires 4 are expanded and supported after being deformed, the steel wires 4 have certain softness and elasticity, the steel wires 4 can be deformed and bent under the state that the two ends are extruded, and have certain support strength, the sliding of the steel wires close to the first ring 2 can be adjusted to change the distance of the steel wires, thereby reducing the size of the vascular expansion, and being beneficial to the vascular expansion without reducing the expansion time of the blood vessel expansion.

As shown in fig. 2 and 5, in some embodiments, the adjusting assembly 5 includes a fixing plate 51 fixedly disposed at one end of the catheter 1 far from the first ring 2, a corrugated hose 52 sleeved on the catheter 1 is connected between the fixing plate 51 and the second ring 3, an air tube 53 is communicated with the corrugated hose 52, an end of the air tube 53 is communicated with an air bag 54, in order to make the device more reasonable, preferably, the air bag 54 is communicated with an air inlet tube, the air inlet tube is provided with a one-way valve, the air tube 53 is communicated with a branch tube, a tube cap is mounted on the branch tube, both ends of the corrugated hose 52 are of a closed structure, a support rod is connected between one end of the corrugated hose 52 far from the fixing plate 51 and the second ring 3, the air bag 54 is pressed, air is conveyed into the corrugated hose 52 through the air tube 53, and the corrugated hose 52 extends to drive the second ring 3 to slide, an inflation support of the air bag 54 is utilized to make the steel wire 4 deformed and bent more stable, when the deformed and bent steel wire 4 needs to be restored, the tube cap on the branch tube is opened, so as to exhaust the air in the steel wire 52, and the steel wire 4 is restored under its own elasticity.

As shown in fig. 6, in some embodiments, an annular chute 9 is formed in an outer surface of the conduit 1, the second ring 3 is slidably sleeved on the annular chute 9, a return spring 10 sleeved on the annular chute 9 is installed on one side of the second ring 3 close to the first ring 2, the second ring 3 can extrude the return spring 10 when sliding close to the first ring 2, and after the gas in the corrugated hose 52 is discharged, the second ring 3 is more convenient to reset by using the elastic property of the return spring 10, so that the conduit 1 can be smoothly taken out after the steel wire 4 is reset.

As shown in fig. 4 and 6, in some embodiments, the outer surface of the annular sliding groove 9 is provided with a limiting groove 6 along the length direction thereof, the inner wall of the second ring 3 is configured with a limiting block 7, the limiting block 7 is slidably inserted into the limiting groove 6, and the second ring 3 can only linearly slide along the catheter 1 but cannot freely rotate through the sliding limiting of the limiting groove 6 and the limiting block 7, so as to ensure that the plurality of steel filaments 4 can uniformly expand and support the vascular wall.

As shown in figures 1 and 2, in some embodiments, the outer surface of the end of the catheter 1 far away from the first ring 2 is provided with anti-slip teeth 8 in an annular array, and the anti-slip teeth 8 are arranged to enable medical staff to be more stable when holding the catheter 1.

As shown in fig. 1 and 2, in some embodiments, one end of the catheter 1 close to the first ring 2 is in a conical configuration, and the end is subjected to obtuse angle treatment, the end of the catheter 1 is in the conical configuration to be inserted into a blood vessel, and the obtuse angle treatment avoids scratching body tissues caused by the end of the catheter 1 when the catheter 1 is inserted.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. The utility model provides a quick expansion external member of ECMO arteriovenous puncture, a serial communication port, including pipe (1), the one end surface of pipe (1) has set firmly ring one (2), the surface slip cover of pipe (1) is equipped with ring two (3), ring one (2) with it installs a plurality of billet silk (4) to be annular array between the opposite side of ring two (3), install on pipe (1) and be used for adjusting ring two (3) gliding adjusting part (5).

2. The ECMO arteriovenous puncture rapid dilation kit according to claim 1, wherein the adjustment assembly (5) comprises a fixing plate (51) fixedly arranged at one end of the catheter (1) far away from the first ring (2), a corrugated hose (52) sleeved on the catheter (1) is connected between the fixing plate (51) and the second ring (3), the corrugated hose (52) is communicated with an air pipe (53), and the end of the air pipe (53) is communicated with an air bag (54).

3. The ECMO arteriovenous puncture rapid expansion kit according to claim 1, wherein an annular sliding groove (9) is formed in the outer surface of the conduit (1), the second ring (3) is slidably sleeved on the annular sliding groove (9), and a return spring (10) sleeved on the annular sliding groove (9) is installed on one side, close to the first ring (2), of the second ring (3).

4. The ECMO arteriovenous puncture rapid expansion kit according to claim 3, wherein a limiting groove (6) is formed in the outer surface of the annular sliding groove (9) along the length direction of the annular sliding groove, a limiting block (7) is constructed on the inner wall of the second ring (3), and the limiting block (7) is slidably inserted in the limiting groove (6).

5. An ECMO arteriovenous puncture quick-expansion kit according to claim 1, wherein the outer surface of one end of the catheter (1) far away from the first ring (2) is provided with anti-skid teeth (8) in an annular array.

6. An ECMO arteriovenous puncture quick dilation kit according to claim 1 wherein the end of the catheter (1) near the first ring (2) is of a tapered configuration and the end is blunt-ended.

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