CN204133568U - Pharyngeal puncture needle - Google Patents

Abstract

The utility model discloses a pharyngeal puncture needle, which comprises a needle tube, a puncture needle head arranged on the lower end of the needle tube and communicated with the needle tube, an air bag arranged on the upper end of the needle tube and connected with the needle tube, and a block; the outer surface of the air bag is There are at least two supporting shrapnels arranged around the circumference of its axis, and the supporting shrapnels are used to provide the restoring force for the outward expansion of the airbag; the upper end of the puncture needle is provided with external threads, and the stopper is threaded on the puncture needle. on top. The utility model can reduce the probability of pharyngeal injury caused by too deep penetration of the puncture needle; moreover, by adopting the combined design of the air bag and the supporting shrapnel, the related operations can be completed by squeezing the air bag with fingers or loosening the air bag, thereby Make the operation easier and more convenient.

Description

Pharyngeal puncture needle

technical field

The utility model relates to a pharyngeal puncture needle.

Background technique

For diseases such as peritonsillar abscesses, it is often necessary to puncture with a puncture tool. At present, the commonly used puncture tool is generally a syringe. The syringe is currently the most widely used medical device. During use, the user needs to hold the syringe and use the puncture needle to pierce the throat tissue, and then pull the piston handle of the syringe with the other hand to achieve the effect of suction. However, during the operation, the puncture needle is easily inserted too deep, causing damage to blood vessels or nerves in the pharynx.

Utility model content

In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a pharyngeal puncture needle, which can limit the depth of the puncture needle piercing into the pharynx by adopting the design of the stopper, thereby reducing the Deep and cause the probability of pharyngeal injury.

In order to solve the above problems, the technical scheme adopted in the utility model is as follows:

The pharyngeal puncture needle comprises a needle tube, a puncture needle arranged on the lower end of the needle tube and communicated with the needle tube, an air bag arranged on the upper end of the needle tube and communicated with the needle tube, and a block; the outer surface of the air bag is arranged around its axis with at least Two supporting elastic pieces are used to provide the restoring force for the outward expansion of the air bag; the upper end of the puncture needle is provided with external threads, and the stopper is threadedly sleeved on the upper end of the puncture needle.

A holding rod protruding from the top of the airbag is arranged on the inner wall of the needle tube, and the top of the airbag is airtightly connected with the outer peripheral wall of the holding rod.

The airbag is in the shape of a revolving body.

The puncture needle is a hollow tube with an opening at the lower end.

The lower end of the puncture needle has a needle point for puncturing, and the stopper is located above the needle point.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model can limit the depth of the puncture needle piercing into the pharynx by using the block, thereby reducing the probability of pharynx damage caused by the puncture needle piercing too deep; moreover, by reasonably setting the connection relationship between the puncture needle and the block , and the position of the stopper can also be adjusted to adjust the maximum depth that the puncture needle can penetrate into the pharynx; by adopting the combined design of the air bag and the supporting shrapnel, the relevant operation can be completed by squeezing the air bag with fingers or releasing the air bag, thus Make the operation easier and more convenient.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Among them, 1. needle tube; 2. puncture needle; 3. air bag; 4. supporting shrapnel; 5. stopper; 6. holding rod.

Detailed ways

In the following, the utility model will be further described in combination with the accompanying drawings and specific implementation methods, so as to understand more clearly the technical idea claimed by the utility model.

As shown in Figure 1, it is a pharyngeal puncture needle of the present utility model, comprising a needle tube 1, a puncture needle 2 arranged on the lower end of the needle tube 1 and connected with the needle tube 1, an air bag 3 arranged on the upper end of the needle tube 1 and connected with the needle tube 1 ; The outer surface of the airbag 3 is provided with at least two support elastic pieces 4 which are used to provide the restoring force for the outward expansion of the airbag 3 .

During use, the airbag 3 is first squeezed to form a negative pressure inside, and then the puncture needle 2 is used to puncture the pharyngeal tissue. By releasing the finger, the airbag 3 automatically expands, and the pharyngeal puncture needle absorbs liquid. And when injecting medicine, the medicinal liquid can be absorbed by the same extrusion method, and the air bag 3 will be full accordingly, and the air bag 3 will be squeezed again after the puncture needle 2 penetrates the tissue, and the medicinal liquid will enter the pharyngeal tissue.

The pharyngeal puncture needle also includes a stopper 5 , and the stopper 5 is sleeved on the puncture needle 2 . Specifically, the upper end of the puncture needle 2 is provided with an external thread, and the stopper 5 is threaded on the upper end of the puncture needle 2 . And by adopting the above-mentioned structure, the position of the stopper 5 can be adjusted to adjust the maximum depth that the puncture needle 2 can penetrate into the pharynx.

During the needle insertion process, when the puncture needle 2 penetrates into the pharyngeal tissue to a certain depth, the stopper 5 contacts the corresponding part of the pharynx, thereby preventing the puncture needle 2 from continuing to penetrate. Therefore, by using the stopper 5, the The depth of the puncture needle 2 piercing into the pharynx to reduce the probability of pharyngeal damage caused by the puncture needle 2 piercing too deep; 1. Supporting the shrapnel 4, you can squeeze the airbag 3 with your fingers or release the airbag 3 to complete the relevant operations, so that the operation is simpler and more convenient, and it is convenient for the user to operate with one hand instead of two hands.

And further optimized, the diameter of the upper end of the puncture needle 2 is smaller than the diameter of its lower end, and the diameter of the lower end of the puncture needle 2 is greater than the inner diameter of the threaded hole of the stopper 5, so that by utilizing the above-mentioned structure, it is possible to form a support for the stopper 5. Limiting to prevent the stopper 5 from falling off from the puncture needle 2.

Specifically, the airbag 3 is in the shape of a revolving body, and the supporting elastic piece 4 covers the outer surface of the airbag 3 . Wherein, the airbag 3 can be set in a spherical shape or an elliptical shape. Preferably, the supporting elastic piece 4 is provided with anti-slip lines to increase the friction between the hand and the supporting elastic piece 4, making it easier for the hand to hold.

Wherein, the number of the supporting elastic pieces 4 can be set according to actual needs, for example, two pieces, three pieces, five pieces, etc. can be set. Preferably, three support elastic pieces 4 are arranged on the outer surface of the airbag 3 .

Specifically, the needle tube 1 is also provided with a scale line, so as to facilitate checking the volume of the liquid in the needle tube 1 .

Specifically, the puncture needle 2 adopts an existing structure (such as a needle of a syringe), and is set as a hollow tube with an opening at the lower end.

Wherein, the stopper 5 can be set in the shape of a circle, an ellipse, a square or the like. Specifically, the lower end of the puncture needle 2 has a needle point for puncturing, and the stopper 5 is located above the needle point.

The inner wall of the needle tube 1 is provided with a holding bar 6 passing through the top of the air bag 3, and the top of the air bag 3 is airtightly connected with the outer peripheral wall of the holding bar 6 to avoid air leakage. And by adopting the above-mentioned design, when in use, it is convenient to place the holding rod 6 at the operator's mouth position, which can further improve the convenience of operation. Therefore, the utility model can prevent the puncture needle 2 from penetrating too deep. Under certain conditions, by combining the holding rod 6, the holding stability can be improved and hand fatigue can be reduced. Wherein, in order to ensure the connection between the needle tube 1 and the air bag 3 , in this embodiment, the holding rod 6 is bent, and the outer diameter of the holding rod 6 is smaller than the inner diameter of the needle tube 1 .

Preferably, a bracket is also set on the needle tube 1, and an LED light is installed on the bracket through a universal joint. The utility model can be conveniently used by combining the LED light under the condition that the puncture needle 2 can be avoided from being penetrated too deeply. Observe the piercing situation of the puncture needle 2, and at the same time, adjust the irradiation angle of the LED light along with the piercing angle of the puncture needle 2.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. The scope of protection required by the utility model.

Claims (5)

1. pharyngeal puncture needle, is characterized in that: comprise needle tubing, be arranged on needle tubing lower end and the piercing needle be communicated with needle tubing, be arranged on needle tubing upper end and the air bag, the block that are communicated with needle tubing; The outer surface of described air bag is arranged with at least two around its circumference and supports shell fragment, the restoring force of this support shell fragment for providing air bag outwards to expand; The upper end of described piercing needle is provided with external screw thread, and described block thread bush is connected on the upper end of this piercing needle.

2. pharyngeal puncture needle as claimed in claim 1, is characterized in that: the inwall of described needle tubing is provided with pass from air bag top hold rod, the top of this air bag is connected with the outer circle wall hermetic seal of holding rod.

3. pharyngeal puncture needle as claimed in claim 1, is characterized in that: described air bag is rotational-like.

4. pharyngeal puncture needle as claimed in claim 1, is characterized in that: described piercing needle is the hollow pipe that bottom has opening.

5. pharyngeal puncture needle as claimed in claim 1, is characterized in that: the lower end of described piercing needle has the needle tip for puncturing, and block is positioned at the top of needle tip.