CN115054338A

CN115054338A - Use method of nerve block anesthesia device

Info

Publication number: CN115054338A
Application number: CN202210802160.2A
Authority: CN
Inventors: 肖永芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-09
Filing date: 2021-01-09
Publication date: 2022-09-16
Also published as: CN112472251A; CN112472251B

Abstract

The invention provides a using method of a nerve block anesthesia device. The nerve block anesthesia needle comprises an anesthesia needle sleeve which is arranged on the angle adjusting component and used for adjusting the angle of the anesthesia needle; after the anesthesia needle is finished, the angle between the anesthesia needle and the support plate is kept through the angle adjusting assembly; when the piston core bar is in initial contact with the folding arm, resistance is generated due to the function of supporting the capsule body, and the piston core bar is reminded to be drawn out for a certain distance; the folding arm tears the seal under the action of the primary thrust of the piston core rod, so that the supporting capsule body tears to form an exhaust port, and the gas in the supporting capsule body is exhausted through the exhaust port; the part of the folding arm extending into the cavity is pulled back into the notch by the tension spring; pushing the piston core rod again to push the anesthetic out of the liquid outlet hole; after completion, the nerve block anesthesia apparatus was disassembled. Compared with the related art, the puncture needle has the function of reminding an operator of withdrawing, improves the puncture accuracy and reduces the discomfort of a patient.

Description

Use method of nerve block anesthesia device

The present application is a divisional application of the following applications:

application date: 2021-1-9

Application No.: 2021100268072

The invention name is as follows: a nerve block anesthesia needle, an anesthesia device and a using method thereof.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a using method of a nerve block anesthesia device.

Background

Nerve block anesthesia is a method in which a local anesthetic is injected near a peripheral nerve trunk to block conduction of nerve impulses, thereby anesthetizing a region innervated by nerves. The nerve block only needs to inject one position to obtain a larger anesthesia area, but has the possibility of causing serious complications, so the operation must be familiar with local dissection, and know tissues through which the puncture needle passes, nearby blood vessels, organs, body cavities and the like.

When the anesthetic is injected, the anesthetic is pushed backwards, inwards and downwards at a proper position, and when a patient feels strange feeling of radiating to fingers, wrists or forearms, the advance is stopped, and if blood or air is not pumped back, the liquid medicine is injected. Therefore, during the injection of the anesthetic, the withdrawal is important, and the complications caused by improper puncture can be effectively avoided.

At present, the existing anesthetic needle, such as an improved anesthetic needle for multi-drug injection disclosed in patent publication No. CN106581820A, is only improved in the aspect of how to realize the injection of multiple drugs at one time; a portable anesthetic needle disclosed in patent publication No. CN108355202A is improved only in terms of portability and convenience; as also disclosed in patent publication No. CN109223054A, a bone marrow puncturing and extracting device with a positioning frame is provided for solving the problem of reducing the number of puncturing times, and is further provided with a positioning frame, which is convenient for medical staff to perform puncturing and bone marrow fluid extracting operations; other anesthetic needles are used to address the issue of injection volume control. These existing anesthetic needles do not have a reminding function on withdrawal, and once the needle insertion position is not correct, whether the needle penetrates into an artery or a vein is checked without withdrawal, a series of concurrent symptoms caused by improper puncture can appear, so that pain is brought to a patient.

Disclosure of Invention

The invention aims to provide a using method of a nerve block anesthesia device with a back-suction reminding function, and the accuracy of puncture is improved.

The technical scheme of the invention is as follows: a method of using a nerve block anesthesia apparatus, comprising the steps of:

providing a nerve block anesthesia device, wherein the nerve block anesthesia device comprises a support plate, an anesthesia needle and an angle adjusting component for adjusting and maintaining the angle between the anesthesia needle and the support plate, and the angle adjusting component is arranged on the support plate;

the anesthetic needle comprises a needle cylinder with a cavity and a liquid outlet hole at the front end, a piston core rod matched with the needle cylinder, and a speed blocking assembly, wherein the speed blocking assembly comprises a folding arm and a supporting bag body, a notch communicated with the cavity is formed in the wall of the needle cylinder, the folding arm is hinged in the notch, one extending end of the hinge point of the folding arm is connected with the inner wall of the needle cylinder through the supporting bag body, and the supporting bag body is filled with gas, so that the other extending end of the hinge point of the folding arm extends into the cavity from the notch; the support bag body is provided with a seal which can be torn and can exhaust gas, and the folding arm is adhered to the seal;

step two, mounting the anesthetic needle on the angle adjusting component and adjusting the angle of the anesthetic needle;

after the angle adjustment is finished, the angle between the anesthetic needle and the support plate is kept through the angle adjusting assembly;

step four, pushing a piston core rod of the anesthetic needle; when the piston core rod is in initial contact with the folding arm, resistance is generated due to the function of supporting the capsule body, and the piston core rod is reminded to be drawn out for a certain distance; the folding arm tears the seal under the action of the primary thrust of the piston core rod, so that the supporting capsule body tears to form an exhaust port, and the gas in the supporting capsule body is exhausted through the exhaust port;

at the moment, the tensile force generated by the tension spring overcomes the supporting force of the supporting bag body, and the part of the folding arm extending into the cavity is pulled back into the notch;

step five, the piston core rod is pushed again to push the anesthetic out of the liquid outlet hole;

and step six, after the completion, disassembling the nerve block anesthesia device.

Preferably, the angle adjusting assembly comprises a gear, a semi-gear ring and a mounting pipe, the gear is rotatably mounted on the support plate, and gear teeth meshed with the gear are arranged on the inner circular surface of the semi-gear ring; in the second step, the anesthetic needle is sleeved in the mounting tube of the angle adjusting assembly; in the third step, after the angle adjustment is finished, the half gear ring is pushed towards the direction of the support plate so as to fix the angles of the half gear ring, the mounting pipe and the anesthetic needle.

Preferably, a first sucking disc is arranged on one side, close to the support plate, of the half gear ring, and in the third step, the angles of the half gear ring, the installation pipe and the anesthetic needle are fixed through the adsorption of the first sucking disc and the support plate.

Compared with the related technology, the invention has the beneficial effects that:

firstly, the anesthetic needle has the function of reminding an operator of withdrawing, so that the puncture accuracy is improved, and the discomfort of a patient is reduced;

secondly, the generation and the rapid release of the blocking force can be realized by adopting the inflatable supporting air bag, so that the prompting function can be well played, and the use of the anesthetic needle is not influenced;

thirdly, the positioning of the anesthetic needle is realized through the limiting assembly, and the influence on the injection of anesthesia caused by position swing in the use process is avoided;

the angle adjusting assembly realizes rotation and sliding through gear engagement, so that the angle can be accurately adjusted, and the position fixing of the angle can be quickly realized;

fifthly, through the design of the adsorption piece, on one hand, the puncture position can be accurately found, and on the other hand, the diffusion of the anesthetic to the axilla pin and the end is facilitated, so that the blocking of the musculocutaneous nerve is facilitated.

Drawings

FIG. 1 is a schematic view of the structure of a nerve block anesthesia needle provided by the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic diagram of a sectional view of the spacing assembly of FIG. 1;

FIG. 4 is a schematic view of the configuration of the nerve block anesthesia apparatus provided in the present invention;

figure 5 is a left side view of figure 4 with the anesthetic needle and the absorbent member removed.

In the drawings: 1-anesthetic needle, 11-syringe, 111-cavity, 112-notch, 12-needle body, 13-plunger rod, 14-speed blocking component, 141-folding arm, 1411-first arm, 1412-second arm, 1413-blocking tooth, 142-supporting capsule, 1421-seal, 143-tension spring, 15-spacing component, 151-lantern ring, 152-baffle, 153-sliding block, 2-pressing plate, 3-supporting plate, 4-angle adjusting component, 41-gear, 42-half gear ring, 43-mounting tube, 431-sliding groove, 44-adjusting handle, 45-first sucking disc, 46-handle, 5-adsorption piece, 51-balloon, 52-second sucking disc, 53-hard ring, 54-valve and 55-pull rope.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1, the nerve block anesthesia needle provided by the present embodiment comprises a needle cylinder 11, a needle body 12, a plunger core bar 13, a speed blocking component 14 and a limiting component 15.

The needle cylinder 11 is provided with a cavity 111, the front end of the needle cylinder is provided with a liquid outlet hole, a needle body 12 is arranged on the liquid outlet hole, and the needle body 12 is communicated with the liquid outlet hole. The plunger core bar 13 is matched with the syringe 12, and the plunger core bar 13 can slide in the cavity 111 of the syringe 12.

As shown in fig. 1 and 2, a notch 112 penetrating into the cavity 111 is provided in the cylinder wall of the cylinder 11. The speed stop assembly 14 includes a knuckle arm 141, a support bladder 142 and a tension spring 143.

The folding arm 141 includes a first arm 1411 and a second arm 1412 connected to the first arm 1411 at an obtuse angle. Said first arm 1411 is connected to the inner wall of the barrel 11 through said support capsule 142. The support bladder 142 is filled with a gas such that the second arm 1412 extends into the cavity 111. The supporting capsule 142 is provided with a seal 1421 capable of tearing and discharging gas, and the seal 1421 is adhered to the first arm 1411 of the folding arm 141 in the advancing direction of the plunger rod 13. The folded angles of the first and

second arms

1411 and 1412 are hinged to the needle cylinder 11. The seal 1421 is mounted on the plunger rod in a sliding position, and when the second arm 1412 is pushed by the plunger rod 13, the first arm 1411 can tear the seal 1421 quickly, and only a small opening is needed to release the gas in the support capsule 142.

The tension spring 143 is located at the side of the supporting capsule 142, and the tension spring 143 connects the first arm 1411 and the wall of the syringe 11. When the gas in the support bladder 142 is vented, the tension spring 143 pulls the second arm 1412 from the cavity 111 back into the slot 112.

In this embodiment, the obtuse angle of the first and

second arms

1411, 1412 is oriented opposite the direction of travel of the plunger core 13 (as shown in FIGS. 1, 2), and the second arm 1412 of the structure is pulled by the tension spring 143 in a clockwise direction as shown in FIG. 1 back into the slot 112. In other embodiments, the obtuse angular orientation of the first and

second arms

1411, 1412 may also be the same as the direction of travel of the plunger core rod, with the second arm 1412 of the structure being pulled back into the slot 112 in a counterclockwise direction by the extension spring 143. In any case, the second arm 1412 is provided with a stop tooth 1413, and the stop tooth 1413 faces the opposite side of the advancing direction of the plunger core rod 13. The catch 1413 can increase the pushing force of the plunger rod 13 and convert the pushing force into a tearing force, so as to tear the seal 1421 quickly.

Two speed blocking assemblies 14 can be arranged on the circumference of the needle cylinder 11, so that resistance is increased, and better hand feeling is realized.

As shown in fig. 1 and 3, the position limiting assembly 15 includes a collar 151, a baffle 152 disposed at one end of the collar 151, and sliding blocks 152 circumferentially distributed on the collar 151. The lantern ring 151 is sleeved on the needle cylinder 11, and one end of the sliding block 152 is attached to the baffle 152. The slider 152 is in at least four distribute on the lantern ring 151, four are 90 degrees and distribute, and the needle that will anaesthetize that can be fine is steadily placed in this contained angle, through between slider and the slider, prevents the rotation of anaesthesia needle. The baffle 152 is kept away from the liquid outlet hole, and the baffle 152 is hexagonal in shape and is limited at different angles by four sliding blocks 153.

As shown in fig. 4 and 5, the invention also provides a nerve block anesthesia apparatus, which comprises an anesthesia needle 1, a pressing plate 2, a supporting plate 3, an angle adjusting component 4 and an adsorbing member 5. The anesthetic needle 1 is the nerve block anesthetic needle.

The support plate 3 is arranged on the pressure plate 2, and the support plate and the pressure plate form a T-shaped structure. When in use, the bottom of the pressing plate 2 is provided with an adhesive piece (not shown), and the pressing plate 2 and the whole anesthesia device thereon are adhered to a bed or the body of a patient by tearing the release film. Alternatively, the plate 3 may be provided at one end of the plate 2, because the plate 2 is placed under the body of the patient and pressed and fixed by the body of the patient.

The anesthetic needle 1 is connected with an angle adjusting component 4 arranged on the support plate 3, and the angle adjusting component 4 is used for adjusting and maintaining the angle between the anesthetic needle 1 and the support plate 3.

The angle adjusting assembly 4 comprises a gear 41, a half-gear ring 42, a mounting tube 43, an adjusting handle 44, a first suction cup 45 and a handle 46. The gear 41 is rotatably mounted on the carrier plate 3 by means of a shaft (not numbered). Gear teeth meshed with the gear 41 are arranged on the inner circular surface of the semi-gear ring 42, and the inner circle of the semi-gear ring 42 is matched with the outer circle of the gear 41. The outer circular surface of the semi-gear ring 42 is connected with the mounting pipe 42, and the semi-gear ring and the mounting pipe are integrally formed. The mounting tube 43 is used for sleeving the anesthetic needle 1, specifically, sliding grooves 431 corresponding to the sliding blocks 153 in position and number are circumferentially arranged in the mounting tube 43, and during insertion, the sliding blocks are matched with the sliding grooves 431.

An adjusting handle 44 is arranged on one side of the gear 41 far away from the support plate 3. The side of the half gear ring 42 adjacent to the fulcrum 3 is provided with a first suction disc 45. The side of the half gear ring 42 away from the fulcrum 3 is provided with a pull handle 46.

The gear 41 is meshed with the semi-gear ring 42 through the gear 41 to realize the rotation of the gear 41, the semi-gear ring 42, the installation tube 43 and the anesthetic needle 1 are driven to rotate together, after the position is adjusted, a slideway is formed through gear meshing, the semi-gear ring 42 is pushed towards the support plate 3 and is fixed through the adsorption force of the first sucker 45.

When the angle needs to be adjusted again, the first suction disc 45 on the half gear ring 42 is separated from the support plate 3 through the handle 46, so that the half gear ring 42 has no constraint and can be adjusted with the gear 41.

As shown in fig. 4, the suction member 5 includes a balloon 51 and a second suction cup 52 provided at one end of the balloon 51 and communicated with the inside of the balloon 51, and a hard ring 53 is provided at an end of the second suction cup 52 away from the balloon 51. The balloon 51 is provided with a valve 54 communicated with the inside of the balloon 51. The end of the balloon 51 remote from the second suction cup 52 is attached to the strip 3. The balloon 51 is connected to the support plate 3 by a pull rope 55, which may be an elastic pull rope, and is required to ensure that the adsorbing member 5 has a sufficient length for use.

The invention also provides a using method of the nerve block anesthesia device, which comprises the following steps:

s1, placing the nerve block anesthesia device at a proper position beside a user, and fixing the whole device by the pressing plate 2, wherein the whole device is either adhered or compacted by the body.

S2, sleeving the anesthetic needle 1 in the mounting tube of the angle adjusting component 4, matching the slide block 153 on the anesthetic needle 1 with the slide groove 431 in the mounting tube 43, and mounting the needle body 12 at the liquid outlet.

And S3, rotating the adjusting handle to adjust the anesthetic needle to a proper angle. Typically, the anesthetic needle 1 is at an angle of 60 ° to the target position.

S4, after the angle adjustment is completed, the half-ring gear 42 is pushed toward the carrier 3, and the first suction pad 45 is brought into contact with and attracted to the carrier 3, thereby fixing the angles of the half-ring gear 42, the mounting tube 43, and the anesthetic needle 1.

S5, attaching the hard ring 53 of the adsorption piece 5 to the side of the target position, simultaneously deflating and loosening the balloon, and enabling the hard ring to be tightly attached to the side of the target position by the balloon generating negative pressure; and pulling the adsorption piece to enable the target position to be raised.

S6, inserting the needle at the proper position of the bulge, and simultaneously sliding the sliding block 153 on the limiting assembly 15 in the sliding groove 431 in the mounting tube 43. And after reaching the proper depth (the needle point enters the depth of 1-2 cm), pushing a piston core rod 13 of the anesthetic needle. The needle insertion needs to be slow, and in general, the needle needs to be retracted by 2 mm. The baffle 152 arranged on the limiting component 15 also plays a limiting role in preventing the needle from being inserted too deeply.

S7, when the plunger 13 is first contacted with the second arm 1412 of the folding arm 141, a resistance is generated due to the function of the support capsule 142, and at this time, the plunger 13 needs to be drawn out for a certain distance after the operator feels the hand. The arm 141 is pivoted by the initial pushing force of the plunger stem 13 and breaks the seal 1421, causing the support bladder 142 to tear a vent for venting gas through which the gas in the support bladder 142 is vented.

S8, at this time, the pulling force generated by the tension spring 143 overcomes the supporting force of the support capsule 142, and pulls the portion (the second arm 1412) of the folding arm 141 extending into the cavity 111 back into the notch 112.

S9, if there is no abnormality (blood is drawn out) when the plunger rod is withdrawn at step S7, the plunger rod 13 is pushed again to push the anesthetic from the liquid outlet hole into the tissue. If the extraction is abnormal, the needle needs to be withdrawn and the position needs to be readjusted.

If the angle needs to be adjusted again, the half gear ring 42 is pulled out through the pull handle 46, the first suction disc 45 on the half gear ring is separated from the support plate 3, the anesthetic needle is adjusted to a proper angle position and fixed through rotating the adjusting handle 44 again, and then the needle is inserted according to the steps.

S10, after the anesthesia injection is completed, the anesthesia needle 1 slides out of the installation tube 43, and the valve 54 of the adsorption piece 5 is opened to release the negative pressure.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A method for using a nerve block anesthesia apparatus, comprising the steps of:

the anesthetic needle comprises a needle cylinder, a piston core rod and a speed blocking assembly, wherein the needle cylinder is provided with a cavity, the front end of the needle cylinder is provided with a liquid outlet hole, the piston core rod is matched with the needle cylinder, the speed blocking assembly comprises a folding arm and a supporting bag body, the wall of the needle cylinder is provided with a notch communicated with the cavity, the folding arm is hinged in the notch, one extending end of a hinged point of the folding arm is connected with the inner wall of the needle cylinder through the supporting bag body, the supporting bag body is filled with gas, and the other extending end of the hinged point of the folding arm extends into the cavity from the notch; the support bag body is provided with a seal which can be torn and can exhaust gas, and the folding arm is adhered to the seal;

2. The use method of the nerve block anesthesia apparatus of claim 1, wherein the angle adjustment assembly comprises a gear, a half-gear ring and a mounting tube, the gear is rotatably mounted on the support plate, and the inner circular surface of the half-gear ring is provided with gear teeth engaged with the gear; in the second step, the anesthetic needle is sleeved in the mounting tube of the angle adjusting assembly; in the third step, after the angle adjustment is finished, the half gear ring is pushed towards the support plate so as to fix the angles of the half gear ring, the installation pipe and the anesthetic needle.

3. The use method of the nerve block anesthesia apparatus of claim 2, wherein a first suction cup is provided on the side of the half-gear ring adjacent to the support plate, and in step three, the angles of the half-gear ring, the mounting tube and the anesthesia needle are fixed by the suction of the first suction cup and the support plate.