CN212547109U

CN212547109U - Disposable cricothyroid trocar

Info

Publication number: CN212547109U
Application number: CN202020443797.3U
Authority: CN
Inventors: 侯丽娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-02-19
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a disposable cricothyroid membrane puncture trocar, which relates to the technical field of clinical medicine. A trocar body, a puncture needle core, a puncture needle core handle, a puncture needle seat, a protective cap, a drug delivery tube tail, a drug delivery catheter and a fixed plug are composed. The utility model can accurately see the depth of needle insertion, avoid excessive puncture, inject medicine through the indwelling cannula, and avoid the patient's throat and esophagus from being injured by sudden coughing of the needle tip when the traditional 5ml syringe is used for puncturing. The front end of the indwelling cannula is provided with three The side holes in different directions spray the anesthetics around the glottis evenly through the front main hole and the three side holes to ensure sufficient surface anesthesia, especially for patients whose cough reflex cannot be elicited. The adjustable ring buckle can avoid deep puncture caused by rough operation.

Description

Disposable cricothyroid membrane puncture trocar

Technical Field

The utility model relates to the technical field of clinical medicine, in particular to disposable cricothyroid membrane puncture trocar.

Background

Clinically, no puncture needle special for cricothyroid membrane puncture is available at present, and is generally replaced by an intravenous infusion trocar or a 5ml syringe, and the defects are that: firstly, the puncture depth can not be accurately positioned, and the injury of the throat and even the esophagus of a patient is often caused by the reason that the depth of a needle is too deep, or the needle is too deep due to the fact that the cough of the patient is induced after the drug administration; secondly, patients who are frequently unconscious need to be subjected to cricothyroid membrane puncture clinically, cough reflex of the patients disappears, and the traditional puncture equipment cannot realize sufficient surface anesthesia.

Disclosure of Invention

An object of the utility model is to overcome prior art's not enough to a disposable cricothyroid membrane puncture trocar is provided, and it is when the cricothyroid membrane puncture, and the location depth of needle insertion that can be accurate avoids the puncture too deeply, can carry out abundant surface anesthesia to the air flue simultaneously.

The utility model adopts the technical scheme as follows:

a disposable cricothyroid membrane puncture trocar comprises a puncture needle protective sleeve, an adjustable annular buckle, a cannula side hole, an indwelling cannula, a metal catheter seat, a trocar body, a puncture needle core handle, a puncture needle seat, a protective cap, an administration tube empennage, an administration tube and a fixed plug, wherein the puncture needle protective sleeve is sleeved on the indwelling cannula, the indwelling cannula is fixed on the metal catheter seat, the metal catheter seat and the fixed plug are respectively fixed on two sides in the trocar body, the puncture needle core is fixed on the puncture needle seat, the puncture needle core handle is arranged on one side of the puncture needle seat, the puncture needle core penetrates through the fixed plug and the metal catheter seat and then is inserted into the indwelling cannula, the puncture needle seat fixes the tail end of the trocar body, one side of the trocar body between the metal catheter seat and the fixed plug is connected with one end of the administration tube, the other end, the adjustable annular buckle is sleeved on the indwelling sleeve, the front end of the indwelling sleeve is provided with three side holes in different directions, and the indwelling sleeve is provided with millimeter scales.

The millimeter scale is located behind the side hole, the unit scale is 2mm, and the total length is 2 cm.

The adjustable annular buckle is positioned at the 1cm scale of the indwelling cannula.

The side holes are radially and uniformly distributed on the indwelling cannula.

The tail wing of the administration tube is in threaded connection with the protective cap.

The administration catheter is a PVC hose.

The utility model has the advantages that:

1. the indwelling sleeve is provided with millimeter scales, so that the needle inserting depth can be accurately seen, and the puncture is prevented from being too deep; 2. the utility model prevents the patient from suddenly coughing and damaging the throat and esophagus when puncturing with the traditional 5ml syringe by injecting the medicine through the indwelling cannula; 3. the front end of the indwelling cannula is provided with three side holes in different directions, and anesthetic is uniformly sprayed around the glottis through the foremost main hole and the three side holes, so that sufficient surface anesthesia is ensured, and the indwelling cannula is particularly beneficial to patients who cannot be led out by cough reflex; 4. keep somewhere adjustable cyclic annular buckle that sets up on the sleeve pipe, can avoid resulting in the puncture too deeply because of the operation is rough violently to the buckle position can be adjusted according to the cricothyroid membrane degree of depth.

Drawings

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

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a schematic structural view of the trocar body according to the present invention;

FIG. 6 is a schematic view of the tail wing structure of the administration tube of the present invention;

FIG. 7 is a schematic view of the protective cap of the present invention;

fig. 8 is a schematic view of the fixing plug of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, 2, 5-8, a disposable cricothyroid membrane puncture trocar comprises a puncture needle protective sleeve 1, an adjustable annular buckle 2, a cannula side hole 3, an indwelling cannula 4, a metal catheter seat 5, a trocar body 6, a puncture needle core 7, a puncture needle core handle 8, a puncture needle seat 9, a protective cap 10, a drug delivery tube tail 11, a drug delivery tube 12 and a fixed plug 13, wherein the puncture needle protective sleeve 1 is sleeved on the indwelling cannula 4, the indwelling cannula 4 is fixed on the metal catheter seat 5, the metal catheter seat 5 and the fixed plug 13 are respectively fixed on two sides inside the trocar body 6, the puncture needle core 7 is fixed on the puncture needle seat 9, the puncture needle core handle 8 is arranged on one side of the puncture needle seat 9, the puncture needle core 7 is inserted into the indwelling cannula 4 after passing through the fixed plug 13 and the metal catheter seat 5, the puncture needle seat 9 fixes the tail end of the trocar body 6, one side of the trocar body 6, which is positioned between the metal catheter seat, the other end of the administration catheter 12 is provided with an administration tube tail wing 11, the administration tube tail wing 11 is connected with a protective cap 10, an adjustable annular buckle 2 is sleeved on an indwelling sleeve 4, the front end of the indwelling sleeve 4 is provided with three side holes 3 in different directions, sufficient surface anesthesia is ensured, millimeter scales 14 are arranged on the indwelling sleeve 4, and the needle insertion depth can be accurately seen.

As shown in fig. 3, the millimeter scale 14 is located behind the side hole 3, and has a unit scale of 2mm and a total length of 2 cm.

The adjustable annular buckle 2 is positioned at the 1cm scale of the indwelling cannula 4.

As shown in figure 4, said side holes 3 are radially and evenly distributed on the indwelling cannula 4.

The tail wing 11 of the administration tube is in threaded connection with the protective cap 10.

The administration tube 12 is a PVC hose.

The utility model discloses when using, pull out pjncture needle protective sheath 1 earlier, confirm perpendicular needle insertion behind cricothyroid membrane position and the degree of depth through the supersound guide, owing to mark millimeter scale 14 on keeping somewhere sleeve pipe 4, can the puncture needle insertion degree of depth of accurate control, and the cover has adjustable cyclic annular buckle 2 on keeping somewhere sleeve pipe 4, adjustable cyclic annular buckle 2 position can be adjusted according to cricothyroid membrane degree of depth, when the needle insertion degree of depth reaches the degree of depth of needs, adjustable cyclic annular buckle 2 can block on the skin surface, because skin is generally not more than 1 centimetre to cricothyroid membrane degree of depth, so adjustable cyclic annular buckle 2 sets up 1cm department keeping somewhere sleeve pipe 4, can avoid leading to the puncture too deeply because of the operation is rough violently or the error, cause the soft tissue. After the cricothyroid membrane is punctured, the protective cap 10 is unscrewed, the tail wing 11 of the administration tube is connected with a 5ml injector filled with local anesthetic and is pumped back, when bubbles overflow to indicate that the puncture is successful, the puncture needle core 7 is pulled out, the local anesthetic is injected, the main hole at the forefront end of the indwelling sleeve 4 and the side holes 3 in three different directions are sprayed and distributed around the glottis, the anesthetic is uniformly distributed, and the indwelling sleeve 4 can be pulled out after the administration is finished.

The first embodiment is as follows:

the visit before anesthesia finds that the patients are fat, the possibility of difficult air passages exists, and clear-headed tracheal intubation is needed. Before intubation, the thyrocricocentesis is needed to carry out full surface anesthesia to relieve intubation reaction. The depth of the cricothyroid membrane is measured by ultrasound before puncture to be 1.16cm, the buckle on the puncture needle sleeve is adjusted to be 1.2cm, a patient is ordered to hold his breath and then puncture, after the cricothyroid membrane is punctured, gas is pumped back to overflow, the puncture is successful, local anesthetic is given, the patient is choked, the local anesthetic is fully distributed, then trachea cannula is carried out, and the cannula is well tolerated.

Example two:

a hypertensive cerebral hemorrhage patient needs an emergency craniotomy, and the patient is unconscious before operation, is full of stomach and needs to keep a descending tracheal cannula under the condition of spontaneous respiration. Before intubation, the thyrocricocentesis is needed to carry out full surface anesthesia to relieve intubation reaction. Before puncture, the depth of the cricothyroid membrane is measured by ultrasound to be 0.92cm, the buckle on the puncture needle sleeve is adjusted to be 1cm, then puncture is carried out, after the cricothyroid membrane is punctured, gas is pumped back to overflow, the puncture is successful, local anesthetic is given, and as a patient unconsciously cannot lead out a choking cough reflex, but the tracheal intubation process is smooth, the patient intubation tolerance is still good.

Claims

1. Disposable cricothyroid membrane puncture trocar, its characterized in that: comprises a puncture needle protective sleeve (1), an adjustable annular buckle (2), a sleeve side hole (3), an indwelling sleeve (4), a metal catheter seat (5), a trocar body (6), a puncture needle core (7), a puncture needle core handle (8), a puncture needle seat (9), a protective cap (10), a medicine feeding pipe tail wing (11), a medicine feeding pipe (12) and a fixed plug (13), wherein the puncture needle protective sleeve (1) is sleeved on the indwelling sleeve (4), the indwelling sleeve (4) is fixed on the metal catheter seat (5), the metal catheter seat (5) and the fixed plug (13) are respectively fixed on two sides in the trocar body (6), the puncture needle core (7) is fixed on the puncture needle seat (9), the puncture needle core handle (8) is arranged on one side of the puncture needle seat (9), the puncture needle core (7) is inserted into the indwelling sleeve (4) after passing through the fixed plug (13) and the metal catheter seat (5), the fixed sleeve needle body (6) tail end of puncture needle file (9), the side that sleeve needle body (6) is located between metal catheter seat (5) and fixed stopper (13) is connected and is dosed pipe (12) one end, it sets up to dose pipe fin (11) to dose pipe (12) the other end, it is connected with helmet (10) to dose pipe fin (11), adjustable cyclic annular buckle (2) cover is on keeping somewhere sleeve pipe (4), it has side opening (3) of three not equidirectional to keep somewhere sleeve pipe (4) front end, it is equipped with millimeter scale (14) to keep somewhere on sleeve pipe (4).

2. The disposable cricothyroid puncture trocar of claim 1, wherein: the millimeter scale (14) is positioned behind the side hole (3), the unit scale is 2mm, and the total length is 2 cm.

3. The disposable cricothyroid puncture trocar of claim 1 or 2, wherein: the adjustable annular buckle (2) is positioned at the 1cm scale of the indwelling cannula (4).

4. The disposable cricothyroid puncture trocar of claim 1 or 2, wherein: the side holes (3) are uniformly distributed on the indwelling sleeve (4) in the radial direction.

5. The disposable cricothyroid puncture trocar of claim 1 or 2, wherein: the tail wing (11) of the administration tube is in threaded connection with the protective cap (10).

6. The disposable cricothyroid puncture trocar of claim 1 or 2, wherein: the administration catheter (12) is a PVC hose.