CN212547116U

CN212547116U - A cricothyroid membrane puncture needle for endotracheal infiltration anesthesia

Info

Publication number: CN212547116U
Application number: CN202020657951.7U
Authority: CN
Inventors: 郑强
Original assignee: Zigong Third Peoples Hospital
Current assignee: Zigong Third Peoples Hospital
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-02-19
Anticipated expiration: 2030-04-26

Abstract

The utility model discloses a cricothyroid membrane puncture needle for intratracheal infiltration anesthesia, which comprises a needle core and a sleeve which are mutually spliced; the sleeve comprises a tube seat, the tube seat is hollow, one end of the tube seat is provided with a needle tube, the other end of the tube seat is provided with an injection head, and the periphery of the tube seat is provided with an adjusting device for adjusting the insertion depth of the needle tube; the needle core comprises a hollow needle and a needle seat fixedly connected with the tail end of the hollow needle, the needle seat is hollow, and the tail end of the needle seat is provided with a connector; the needle seat is inserted into the injection head, and the needle tip of the hollow needle penetrates out of the needle tube and is smoothly and tightly connected with the end part of the needle tube. The cricothyroid membrane puncture needle adopting the structure can effectively solve the problems of needle withdrawal and side injury caused by swallowing, choking, body movement and the like of a patient in the puncture and medicine injection process.

Description

A cricothyroid membrane pjncture needle for endotracheal infiltration anesthesia

Technical Field

The utility model relates to a medical instrument, in particular to a cricothyroid membrane puncture needle for infiltration anesthesia in trachea.

Background

From a medical point of view, anesthesia means that a patient temporarily loses sensation wholly or locally by medication or other methods to achieve painless purpose, providing conditions for surgical treatment or other medical examination and treatment. Infiltration anesthesia is a method of injecting local anesthetic into surgical site, subcutaneous tissue, mucous membrane and deep tissue to anesthetize sensory nerve endings or nerve trunks so as to lose the sensory and conduction stimulation capability, and is generally completed by a special injection device.

Bronchoscopy is one of the most commonly used examination methods for respiratory diseases, and has been widely used in diagnosis and treatment of respiratory diseases. The painless bronchofiberscope examination is increasing day by day, and the anesthesia method of the cricothyroid membrane puncture intratracheal local infiltration combined monitoring and sedation has good effect and is widely applied. The puncture needles commonly used in clinic at present are a 5ml empty needle and a scalp needle which are both common steel needles, are not easy to fix and the depth of the puncture needle is difficult to control. When the patient suffers severe cough and swallow in the process of puncture and drug injection, the patient is forced to withdraw the needle for secondary puncture in order to avoid additional injury. If a vein indwelling needle used clinically is used for puncture, the indwelling needle tube can be bent and displaced once a patient swallows after withdrawing the needle core, so that medicine injection is not smooth or the needle tube is withdrawn out of the trachea cavity. Therefore, it is necessary to develop a cricothyroid needle that can be used for endotracheal infiltration anesthesia!

SUMMERY OF THE UTILITY MODEL

To the above prior art, the utility model provides a cricothyroid membrane pjncture needle for anesthesia is infiltrated in trachea to solve the injection in-process and be forced to move back the needle and the problem of vice damage because of reasons such as patient swallow, chock and cough, body movement.

In order to achieve the above purpose, the utility model adopts the technical scheme that: provides a cricothyroid membrane puncture needle for infiltration anesthesia in trachea, which comprises a needle core and a sleeve which are mutually spliced; the sleeve comprises a tube seat, the tube seat is hollow, one end of the tube seat is provided with a needle tube, the other end of the tube seat is provided with an injection head, and the periphery of the tube seat is provided with an adjusting device for adjusting the insertion depth of the needle tube; the needle core comprises a hollow needle and a needle seat fixedly connected with the tail end of the hollow needle, the needle seat is hollow, and the tail end of the needle seat is provided with a connector; the needle seat is inserted into the injection head, and the needle tip of the hollow needle penetrates out of the needle tube and is smoothly and tightly connected with the end part of the needle tube.

The utility model provides a cricothyroid membrane pjncture needle for infiltration anesthesia in trachea includes nook closing member and sleeve pipe. The casing pipe is used as an injection channel of the anesthetic, and the injection head arranged at the tail end of the casing pipe can inject anesthetic into the punctured trachea to perform intratracheal infiltration anesthesia, so that the operation is convenient. The needle core is used as a puncture part, the cricothyroid membrane can be conveniently and quickly punctured, the joint at the tail end of the needle core can be connected with a peripheral negative pressure device, a hollow needle in the needle core is communicated with the negative pressure device during use, whether the puncture depth is accurate or not can be judged by observing the state of the negative pressure device, and accurate puncture guidance can be provided for an operator. The adjusting device arranged outside the sleeve can adjust the exposed length of the needle tube, and the exposed length is the insertion depth, so that the puncture depth of the puncture needle can be adjusted and controlled, and the tracheal wall on the opposite side is prevented from being damaged; and adjusting device can play fixed spacing effect, and the back of puncturing, the needle tubing can not be because of patient's swallowing effect's removal, has avoided the risk that takes place the complication.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the adjusting device comprises a sleeve, a baffle is arranged at the upper end of the sleeve, an internal thread is arranged on the inner wall of the sleeve, and an external thread matched with the internal thread is arranged on the outer wall of the pipe seat; the sleeve is sleeved on the tube seat and is in threaded connection with the tube seat.

The adjusting device in the utility model is connected with the tube seat by screw thread, and the position of the adjusting device can be adjusted by rotation, so that the needle tube at the front end of the tube seat is exposed to a proper length, thereby not only being convenient for operation, but also being capable of accurately adjusting the exposed length of the needle tube; the baffle plate on the adjusting device plays a role in limiting and fixing.

Furthermore, the separation blade is provided with two, and symmetric distribution is in the sleeve both sides.

Further, the separation blade is arc.

Set the separation blade to the arc, it is inseparabler with patient's neck skin laminating, and not only the patient feels better, and fixed effect is better moreover, and the needle tubing can not rotate at will after the puncture, prevents to drop, is convenient for further operation.

Furthermore, the outer surface of the needle tube is provided with scales along the axial direction.

The scales are arranged on the surface of the needle tube, so that the exposed length of the needle tube can be visually observed, and the puncture depth of the puncture needle can be accurately controlled.

Further, the length of the needle tube is 18-20 mm, and the diameter of the needle tube is 0.6-0.8 mm.

Furthermore, the needle tube comprises an insertion section and a connection section which are connected smoothly, the insertion section is a plastic hose, and the connection section is an elastic hard tube.

The section of the needle tube inserted into the trachea is a hose which is soft in texture and cannot damage the trachea wall. The elastic hard tube of the connecting section can effectively prevent the sleeve from bending caused by swallowing action of a patient.

Furthermore, the length of the insertion section is 13-15 mm, and the length of the connection section is 3-7 mm.

Furthermore, a fixing plate for fixing the hollow needle is arranged in the needle seat, a connecting pipe is arranged at the edge of the fixing plate, and the connecting pipe is inserted into the injection head.

The hollow needle is fixed on the fixing plate, so that the fixing is more stable; the connecting pipe is used as a connecting part of the needle seat and the injection head, so that the connecting stability of the needle seat and the injection head can be ensured, the condition of mutual dislocation can not occur in the operation process, and the puncture is smoother.

The utility model has the advantages that:

the utility model provides a cricothyroid membrane pjncture needle for infiltration anesthesia in trachea, set up adjusting device on the sleeve pipe, through the exposure length of this adjusting device adjustment needle tubing, namely the puncture depth of pjncture needle, from this, operating personnel can be according to patient's trachea position and pipe diameter size settlement puncture length, prevent to puncture contralateral trachea wall because the puncture portion inserts too deeply, even cause the condition of serious complication such as tracheoesophageal fistula to take place; the elastic hard tube of the connecting section can effectively prevent the sleeve from bending caused by swallowing action of a patient; the blocking piece on the sleeve can effectively prevent the needle tube from rotating and falling off at will, thereby facilitating further operation.

Drawings

FIG. 1 is a front view of the present application;

FIG. 2 is a cross-sectional view of the present application;

FIG. 3 is a front view of the bushing;

FIG. 4 is a front view of the hub;

FIG. 5 is a cross-sectional view of the adjustment device;

wherein, 1, a needle core; 11. a hollow needle; 12. a needle seat; 13. a joint; 14. a fixing plate; 15. a connecting pipe; 2. a sleeve; 21. a tube holder; 22. a needle tube; 221. an insertion section; 222. a connecting section; 23. an injection head; 24. an external thread; 3. an adjustment device; 31. a sleeve; 32. a baffle plate; 33. an internal thread.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

In the embodiment of the present invention, as shown in fig. 1 to 5, a cricothyroid membrane puncture needle for endotracheal infiltration anesthesia is provided. As shown in fig. 1, the cricothyroid membrane puncture needle for endotracheal infiltration anesthesia in the present invention comprises a core pin 1 and a cannula 2 which are inserted into each other. As shown in fig. 2 and 3, the casing 2 includes a socket 21, the socket 21 is made of hard plastic or the like, and is cylindrical as a whole, and one end thereof is sealed; a needle tube 22 is arranged at one end of the sealed opening of the tube seat 21, the needle tube 22 is about 19mm long and about 0.7mm in diameter, is communicated with the tube seat 21 and has the axis coincident with the axis of the tube seat 21; in a preferred embodiment of the present invention, in order to avoid the damage of the needle tube 22 to the tracheal wall after puncturing and effectively prevent the cannula from bending due to swallowing action of the patient, the needle tube 22 is provided with a two-stage structure, the needle tube 22 of the structure comprises an insertion section 221 inserted into the trachea and a connection section 222 connecting the insertion section 221 and the tube seat 21, the insertion section 221 is about 14mm long and is made of soft plastics such as PP and PE, the connection section 222 is about 5mm long and is made of hard materials such as PC and polyester, and the insertion section 221 and the connection section 222 are smoothly connected by bonding, welding and the like. The open end of the tube holder 21 is provided with an injection head 23, and anesthetic or the like can be injected into the punctured trachea through the injection head 23.

As shown in figures 1 and 2, the adjusting device 3 is arranged on the periphery of the tube seat 21, the adjusting device 3 can adjust the exposed length of the needle tube, and the exposed length of the needle tube 22 is the insertion depth of the puncture needle. As shown in fig. 2 and 5, the adjusting device 3 includes a sleeve 31, the sleeve 31 being made of the same material as the socket 21; the inner diameter of the sleeve 31 is equal to the outer diameter of the socket 21, the inner wall of the sleeve 31 is provided with an internal thread 33, the outer wall of the socket 21 is provided with an external thread 24 matched with the internal thread 33, and the sleeve 31 and the socket 21 are in threaded fit. The upper end of the sleeve 31 is provided with a baffle 32, the material of the baffle 32 is the same as that of the sleeve 31, and the baffle 32 and the sleeve 31 can be integrally formed for stable connection. In a preferred embodiment of the present invention, the baffle 32 is provided with two pieces, which are symmetrically distributed on both sides of the sleeve 31. In addition, in order to make the flap 31 fit the neck skin of the patient more closely, the flap 31 may be provided in an arc shape. When the exposed length of needle tube 22 is adjusted, sleeve 31 is rotated and slowly moved in the axial direction of sleeve 31 until the exposed length of needle tube 22 satisfies the requirement. To make the adjustment more accurate, a length scale may be provided on the surface of needle cannula 22 along its axial direction, with a zero point of the length scale coinciding with the end of needle cannula 22.

As shown in fig. 2 and 4, the core 1 includes a hollow needle 11 and a hub 12 fixedly attached to a distal end of the hollow needle 11. The needle head of the hollow needle 11 is in a bevel shape; the needle base 12 is made of rigid plastic and the like, is cylindrical as a whole, is hollow inside, and is provided with a joint 13 at the tail end, and the joint 13 can be connected with an external negative pressure device. When puncture is carried out, the needle seat 12 is inserted into the injection head 23, and the needle tip of the hollow needle 11 penetrates out of the needle tube 22 and is smoothly and tightly connected with the end part of the needle tube 22; the hollow needle 11 in the needle core 1 is communicated with the negative pressure device in the puncture process, if the puncture is successful, the gas in the trachea can enter the negative pressure device through the hollow needle 11, so that the negative pressure device is changed, if the puncture is unsuccessful, the negative pressure device cannot be obviously changed, therefore, whether the puncture is successful or not can be judged by observing the state of the negative pressure device, and whether the puncture is successful or not can be determined without pumping back air.

In a preferred embodiment of the present invention, in order to make the installation of the hollow needle 11 more stable, a fixing plate 14 for fixing the hollow needle 11 is provided in the needle holder 12, the fixing plate 14 is hermetically connected with the needle holder 12, the hollow needle 11 is vertically fixed in the middle of the fixing plate 14, and the end of the hollow needle 11 passes through the fixing plate 14. The edge of the fixing plate 14 is provided with a connecting pipe 15, and the outer diameter of the connecting pipe 15 is equivalent to the inner diameter of the injection head 23. When nook closing member 1 and sleeve pipe 2 are pegged graft, during connecting pipe 15 inserted injection head 23, nook closing member 1 was connected more firmly with sleeve pipe 2, the condition of dislocation can not appear, can effectively avoid the damage of cricothyroid membrane and trachea.

When the cricothyroid membrane puncture needle for infiltration anesthesia in the trachea is used, the needle core 1 and the sleeve 2 are combined together, and the exposed length of the needle tube 22 is adjusted to a proper position according to different patients; then the skin at the position of the cricothyroid membrane and the skin of the thumb and the index finger of the left hand of the puncture person are disinfected conventionally, and the puncture person fixes the skin at the position with the thumb and the index finger of the left hand to puncture the cricothyroid membrane; after puncture, the needle tube 22 enters the skin, the baffle plate 32 is fixed, the needle core 1 is withdrawn, the 5ml injector is connected to the injection head 23, air is pumped back, local anesthetic is injected, the intratracheal infiltration anesthesia is completed, the puncture needle can also be fixed on the skin, and the medicine can be injected again if necessary.

While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.

Claims

1. A cricothyroid membrane puncture needle for intratracheal infiltration anesthesia is characterized in that: comprises a stylet (1) and a cannula (2) which are mutually inserted; the sleeve (2) comprises a tube seat (21), the tube seat (21) is hollow, one end of the tube seat is provided with a needle tube (22), the other end of the tube seat is provided with an injection head (23), and the periphery of the tube seat (21) is provided with an adjusting device (3) for adjusting the insertion depth of the needle tube (22); the needle core (1) comprises a hollow needle (11) and a needle seat (12) fixedly connected to the tail end of the hollow needle (11), the needle seat (12) is hollow, and a joint (13) is arranged at the tail end of the needle seat (12); the needle seat (12) is inserted into the injection head (23), and the needle tip of the hollow needle (11) penetrates out of the needle tube (22) and is smoothly and tightly connected with the end part of the needle tube (22).

2. The cricothyroid membrane puncture needle for endotracheal infiltration anesthesia of claim 1, wherein: the adjusting device (3) comprises a sleeve (31), a stop piece (32) is arranged at the upper end of the sleeve (31), an internal thread (33) is arranged on the inner wall of the sleeve, and an external thread (24) matched with the internal thread (33) is arranged on the outer wall of the tube seat (21); the sleeve (31) is sleeved on the tube seat (21) and is in threaded connection with the tube seat.

3. The cricothyroid needle for endotracheal infiltration anesthesia of claim 2, wherein: the baffle plates (32) are provided with two pieces which are symmetrically distributed on two sides of the sleeve (31).

4. The cricothyroid membrane puncture needle for endotracheal infiltration anesthesia of claim 2 or 3, wherein: the baffle plate (32) is arc-shaped.

5. The cricothyroid membrane puncture needle for endotracheal infiltration anesthesia of claim 1, wherein: the outer surface of the needle tube (22) is provided with scales along the axial direction.

6. The cricothyroid needle for endotracheal infiltration anesthesia of claim 1 or 5, wherein: the needle tube (22) comprises an insertion section (221) and a connection section (222) which are connected smoothly, the insertion section (221) is a plastic hose, and the connection section (222) is an elastic hard tube.

7. The cricothyroid membrane puncture needle for endotracheal infiltration anesthesia of claim 1, wherein: a fixing plate (14) used for fixing the hollow needle (11) is arranged in the needle seat (12), a connecting pipe (15) is arranged at the edge of the fixing plate (14), and the connecting pipe (15) is inserted into the injection head (23).