CN215351182U

CN215351182U - Subcutaneous fixing device for implanting central venous catheter through peripheral vein

Info

Publication number: CN215351182U
Application number: CN202120633250.4U
Authority: CN
Inventors: 王家岸
Original assignee: Hainan General Hospital
Current assignee: Hainan General Hospital
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-12-31
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses a subcutaneous fixing device for implanting a central venous catheter through a peripheral vein, which comprises a fixing shell and a fixer, wherein the fixing shell consists of a fixing cap and a fixing sleeve, the fixing cap is detachably connected with the fixing sleeve, a placing cavity is arranged in the fixing sleeve, and through holes are formed in the fixing cap, the fixing sleeve and the fixer at corresponding positions. The catheter fixing device is simple in structure and low in manufacturing cost, the catheter cannot slide after being placed by adopting the matching of the fixing shell and the fixer, the catheter can be clamped and fixed under the skin, the risk that the central venous catheter is placed in a peripheral vein and falls off is avoided, the unplanned catheter drawing is effectively prevented and treated, and the catheter fixing device has the characteristics of good fixing effect, convenience in operation and the like.

Description

Subcutaneous fixing device for implanting central venous catheter through peripheral vein

Technical Field

The utility model belongs to the technical field of medical appliances, and relates to a fixing device, in particular to a subcutaneous fixing device which is placed into a central venous catheter through a peripheral vein.

Background

The Peripherally Inserted Central Catheter (PICC) is a catheter which is punctured through the basilic vein of the upper limb, the median elbow vein, the cephalic vein, the brachial vein and the external jugular vein (the neonate can also pass through the great saphenous vein of the lower limb, the temporal vein of the head, the posterior auricular vein and the like), and the tip of the catheter is positioned in the superior vena cava or the inferior vena cava. The indications are as follows: patients who need long-term intermittent treatment for intravenous treatment for more than one month; using drugs which have great stimulation and damage to peripheral veins, such as chemotherapeutic drugs, mannitol, TPN, drugs with large alkali acidity and high osmotic pressure, and the like; poor peripheral venous vessel conditions, resulting in difficulty in peripheral venous access retention or multiple peripheral venous access retention failures, thereby lacking an effective peripheral venous access and being difficult to maintain for intravenous transfusion; the children or the critical patients are rescued. Its advantages are: the complication caused by the exosmosis of the medicine which stimulates and damages the peripheral vein greatly is avoided; repeated infusion through peripheral venipuncture is reduced, and the pain of a patient is relieved; protecting the peripheral vein of the patient; the retention time is long. Is an important and indispensable blood vessel channel in the vein treatment of patients clinically.

At present, keep somewhere behind central venous catheter is put into through peripheral vein, need use pad pasting and adhesive tape to fix the pipe, current shortcoming that pad pasting and adhesive tape are fixed is very obvious: some patients are allergic to the adhesive film; when the adhesive film is loosened, the catheter placed in the body can continuously slip off; in the process of pipe carrying, when external force pulls the guide pipe, the guide pipe is easily pulled out. These can be catheter tip dislocation, or a completely unplanned extubation, resulting in discontinuation of the patient's treatment requiring a re-catheterisation. This not only increases the economic burden on the patient, but also presents greater losses and safety risks to the patient.

SUMMERY OF THE UTILITY MODEL

The subcutaneous fixing device for the central venous catheter placed through the peripheral vein, which is provided by the utility model, aims at the defects of the prior art, adopts the matching of the fixing shell and the fixer, so that the catheter cannot slide after being placed, the catheter can be clamped and fixed under the skin, the risk of falling off of the central venous catheter placed through the peripheral vein is avoided, the unplanned catheter drawing is effectively prevented and treated, and the subcutaneous fixing device has the characteristics of good fixing effect, convenience in operation and the like.

The technical scheme adopted by the utility model is as follows:

a subcutaneous fixing device for placing a central venous catheter through a peripheral vein comprises a fixing shell and a fixer, wherein the fixing shell consists of a fixing cap and a fixing sleeve, the fixing cap is detachably connected with the fixing sleeve, a placing cavity is arranged in the fixing sleeve and used for placing the fixer, through holes are formed in the centers of the fixing cap, the fixing sleeve and the fixer, the through holes are used for inserting the catheter, so that the catheter can penetrate through the fixing cap, the fixing shell and the fixer, and after the fixer is placed in the placing cavity, the catheter can be clamped and fixed through the matching of the fixing sleeve and the fixer;

the fixer comprises holder and two fixed heads, the holder sets up to the ellipsoid form, use the through-hole to evenly cut apart into four movable blocks through the cross opening as the center on the holder, all be equipped with connecting lug at the movable block both ends, all be equipped with on the fixed head with the corresponding movable groove of connecting lug, the both ends that make the movable block all are connected with the fixed head through connecting lug, and can be along the activity of movable groove, thereby make the through-hole of holder can enlarge or reduce along with the activity of movable block, when the movable block expansion makes the through-hole enlarge, be convenient for insert and put the pipe, but put the pipe and insert the back through gathering together the movable block and can centre gripping fixed pipe.

Furthermore, the through holes arranged on the fixing cap, the fixer and the fixing sleeve are on the same horizontal straight line, so that the catheter is conveniently inserted and fixed, and the catheter is fixed linearly.

Furthermore, the fixing cap is connected with the fixing sleeve through matched threads, so that the fixing cap can be screwed on the fixing sleeve in a rotating mode, and the connection stability of the fixing cap and the fixing sleeve can be improved.

During the intubate, pass the through-hole on the locking cap with the pipe earlier, then expand the movable block via the movable groove, make the through-hole grow, press the fixed head with the pipe again, the holder, its through-hole is passed in proper order to the order of fixed head, gather together the movable block after that, reduce the through-hole, then put into the intracavity of placing on the fixed cover, meanwhile pass the through-hole on the fixed cover with the pipe, and through the size cooperation movable block of placing the chamber, make the through-hole of reducing unable expansion again, can reach the purpose of holding the pipe with the pipe, at last be connected locking cap and fixed cover, the centre gripping of accomplishing the pipe is fixed, can implant subcutaneous with fixing device.

The catheter fixing device is simple in structure and low in manufacturing cost, the catheter cannot slide after being placed by adopting the matching of the fixing shell and the fixer, the catheter can be clamped and fixed under the skin, the risk that the central venous catheter is placed in a peripheral vein and falls off is avoided, the unplanned catheter drawing is effectively prevented and treated, and the catheter fixing device has the characteristics of good fixing effect, convenience in operation and the like.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic diagram of the present invention with a fixed housing disassembled.

Fig. 3 is a cross-sectional view of the fastener of the present invention.

FIG. 4 is a top view of the holder of the present invention; FIG. 5 is a schematic view of a fixing head structure according to the present invention; fig. 6 is a side view of the holder of the present invention.

In the figure: 1. a fixing cap; 2. fixing a sleeve; 3. a holder; 4. a placement chamber; 5. a through hole; 6. a fixed head; 7. a movable block; 8. a movable groove; 9. a connection bump; 10. a cross-shaped cut.

Detailed Description

The utility model is further illustrated by the following examples, but not by way of limitation, in connection with the accompanying drawings.

In the structures shown in fig. 1, 2, 3 and 4, the subcutaneous fixing device for placing the central venous catheter through the peripheral vein comprises a fixing shell and a fixer 3, wherein the fixing shell is composed of a fixing cap 1 and a fixing sleeve 2, the fixing cap 1 is connected with the fixing sleeve 2 through matched threads, a placing cavity 4 is arranged in the fixing sleeve 2, through holes 5 are arranged at corresponding positions of the centers of the fixing cap 1, the fixing sleeve 2 and the fixer 3, and the through holes 5 arranged on the fixing cap 1, the fixer 3 and the fixing sleeve 2 are on the same horizontal straight line.

The fixer 3 comprises holder and two fixed heads 6, and the holder sets up to the ellipsoid form, uses through-hole 5 to evenly cut apart into four movable blocks 7 through cross opening 10 as the center on the holder, all is equipped with connecting lug 9 at movable block 7 both ends, uses through-hole 5 all to be equipped with on fixed head 6 and connects the corresponding movable groove 8 of lug 9 all around (being the top of through-hole, below, left side and right side) as the center.

When the vein was put, pass the through-hole on the locking cap with the pipe earlier, then expand the movable block via the movable groove, make the through-hole grow, again with the pipe according to the fixed head, the holder, its through-hole is passed in proper order to the order of fixed head, gather together the movable block after that, thereby reduce the through-hole, then put into the intracavity of placing on the fixed cover, meanwhile pass the through-hole on the fixed cover with the pipe, and restrict the movable block through the size of placing the chamber, make it unable expansion, thereby make the through-hole that reduces unable expansion again, can reach the purpose of holding the pipe with the pipe, at last be connected locking cap and fixed cover, the centre gripping of accomplishing the pipe is fixed, can implant fixing device under the skin.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A subcutaneous fixation device for placement of a central venous catheter via a peripheral vein, comprising: the fixing device comprises a fixing shell and a fixer, wherein the fixing shell consists of a fixing cap and a fixing sleeve, the fixing cap is detachably connected with the fixing sleeve, a placing cavity is arranged in the fixing sleeve, and through holes are formed in the fixing cap, the fixing sleeve and the fixer at corresponding positions;

the fixer comprises holder and two fixed heads, and the holder sets up to the ellipsoid form, uses the through-hole as the center on the holder to divide into four movable blocks through cross opening evenly, all is equipped with the connection lug at the movable block both ends, all is equipped with the movable groove corresponding with the connection lug on the fixed head.

2. The subcutaneous fixation device for placement via a peripheral vein into a central venous catheter as in claim 1, wherein: the through holes arranged on the fixing cap, the fixer and the fixing sleeve are on the same horizontal straight line.

3. The subcutaneous fixation device for placement via a peripheral vein into a central venous catheter as in claim 1, wherein: the fixing cap is connected with the fixing sleeve through matched threads.