CN107753093B - New compound injection drainage needle and cyst cavity injection drainage method - Google Patents

Abstract

The invention relates to the medical field, in particular to a novel compound injection drainage needle and a cyst cavity injection drainage method, a compound injection drainage needle guide needle, an indwelling hose and a shunt part, the indwelling hose and the shunt part are communicated, and the The guide needle passes through the shunt part and the indwelling hose in sequence; the indwelling hose includes an injection tube, the injection tube is fixedly connected with the drainage tube, and the injection tube is tangent to the outer circular surface of the drainage tube; the indwelling tube is An airbag is fixedly connected to the outer surface of the hose, an isolation sleeve is sleeved on the outer surface of the airbag, the isolation sleeve can slide back and forth along the axis of the injection tube, and the isolation sleeve is tightly pressed on the outer surface of the airbag One end of the shunt is connected to the indwelling hose, and the other end of the shunt is connected to the external injection tube and the external drainage tube respectively; the bladder injection and drainage method uses the novel compound injection and drainage needle. The invention can realize precise drainage and injection of the bladder cavity, and can facilitate the fixation of the indwelling tube.

Description

New compound injection drainage needle and cyst cavity injection drainage method

technical field

The invention relates to the field of medical technology, in particular to a novel compound injection and drainage needle and a cyst cavity injection and drainage method.

Background technique

Clinically, lymphangioma can be divided into single cystic type and polycystic type. Most of the lymphangioma that occurs in the neck are single cystic type, with different sizes and light yellow clear lymphatic tissue fluid or mixed blood fluid, which not only affects the appearance, but also affects the appearance. Squeeze the carotid sheath and trachea, which can cause airway stenosis and even life-threatening suffocation in severe cases. The current treatment method is to use existing puncture and injection instruments such as skin test needles and empty needles to penetrate into the cyst cavity, wash the cyst fluid as much as possible, and then inject sclerosing agents (absolute ethanol, pingyangmycin, bleomycin, polyguidone). Alcohol, etc.), and as necessary, toileting is required to ensure the amount and concentration of the hardener in the capsule.

The above methods have many disadvantages: 1. The head of the puncture needle is a sharp structure, which is temporarily indwelled in the cyst after puncturing. During the injection or toileting process, the puncture needle may cause a sharp head due to changes in the patient's body position, breathing, and the size of the cyst. Injury to the important blood vessels and nerves in the neck; ② The puncture needle lacks a fixing device, which is easy to move, causing the needle injection site to protrude or penetrate into the cyst; Cyst fluid, injection of sclerosant, toilet, and drainage or after injection will lead to residual liquid in the channel, resulting in inaccurate measurement of injection and drainage.

In the existing patent database, there are injection and drainage needles in which the indwelling hose is separated from the guide needle: such as patent CN102029008A-a composite puncture and drainage needle, the disclosed puncture and drainage needle cannot realize the positioning of the indwelling hose; patent CN1788803-bidirectional In the drainage needle and its manufacturing method, the drainage needle disclosed in the drainage needle can only realize the function of dividing the extracted tissue fluid into two parts for storage, that is, the existing technology cannot solve the above-mentioned problems.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide an injection and drainage needle and use the injection and drainage needle to change the existing injection and drainage method, so as to solve the deficiencies in the prior art.

The present invention adopts the following technical scheme: a novel compound injection drainage needle, comprising a guide needle, an indwelling hose and a shunt part, the indwelling hose and the shunt part are communicated, and the guide needle passes through the shunt part and the indwelling part in turn. a hose; the indwelling hose includes an injection tube, the injection tube is fixedly connected with the drainage tube, and the injection tube is tangent to the outer circular surface of the drainage tube; an airbag is fixedly connected to the outer circular surface of the indwelling hose, An isolation sleeve is sleeved on the outer surface of the airbag, the isolation sleeve can slide back and forth along the axis direction of the injection tube, and the isolation sleeve is tightly pressed on the outer surface of the airbag to block the gas circulation of the front and rear airbags; One end of the shunt part is connected with the indwelling hose, and the other end of the shunt part is connected with the external injection pipe and the external drainage pipe respectively.

Further, the diversion part is provided with a drainage channel and a guide channel parallel to each other, the middle part of the guide channel is communicated with the injection channel, and the included angle between the injection channel and the guide channel is 45 degrees.

Further, one end of the drainage channel is communicated with the drainage tube, one end of the guiding channel is communicated with the injection tube, the guiding needle passes through the guiding channel and the injection tube in turn, and the other end of the drainage channel is drained from the outside world. The tube is communicated, and the other end of the injection channel is communicated with the external injection tube.

Further, the middle of the injection tube and the drainage tube is a rigid plastic tube, an airbag is sleeved on the rigid plastic tube, the front end of the airbag is provided with a first inflation port, and the rear end of the airbag is provided with a second airbag. Two inflatable ports, the first inflatable port is in communication with the first air delivery pipe, and the second inflatable port is in communication with the second gas delivery pipe.

Further, the head of the guide needle is a conical sharp structure, the tail of the guide needle is fixedly connected with the plastic handle, the tail end of the guide channel is provided with a rubber plug, and the guide needle passes through the rubber plug Entering the guide channel, after the guide needle is pulled out of the guide channel, the rubber plug will seal the tail end of the guide channel.

Further, the length of the injection tube is longer than that of the drainage tube, and the front ends of the tube walls of the injection tube and the drainage tube are provided with through holes.

Further, the outlet of the external injection pipe is connected to an interface of the tee, and an opening and closing valve is respectively provided on the external injection pipe and the external drainage pipe.

The cyst cavity injection and drainage method using any one of the above-mentioned novel compound injection drainage needles is characterized in that, step 1: measure the size of the cyst cavity according to the ultrasonic detection technology, and determine the puncture point, the puncture direction and the thickness of the punctured tissue;

Step 2: Determine the length of the isolation sleeve according to the data obtained in the previous step, and cut the isolation sleeve to meet the length requirements;

Step 3: Pass the injection tube and the drainage tube through the isolation sleeve and make the isolation sleeve ring on the airbag, and the airbag is divided into two parts: the front end and the back end;

Step 4: Pass the guide needle through the shunt part and the indwelling hose in turn, inflate the rear end of the air bag, and the indwelling hose is driven into the bladder cavity by the guide needle; when the indwelling hose enters the bladder cavity, Pull out the guide needle and inflate the front end of the air bag;

Step 5: Connect the end of the external drainage tube to a device such as a negative pressure suction bag or a negative pressure drainage tube, an empty needle, etc., to discharge the cystic fluid inside the cyst, connect the end of the external injection tube to a needle syringe, and use the needle syringe to inject into the bladder. Inject sclerosant or flush injection into the cavity.

Further, in the step 2, the distance between the front end and the rear end of the airbag is determined by the length of the isolation sleeve, and the distance between the front end and the rear end of the airbag is determined by the size of the cyst cavity and the thickness of the tissue.

Further, in the step 3, the vacant length between the front end and the rear end of the airbag is determined by the size of the airbag cavity. If the airbag cavity is large, the vacant length of the front end of the airbag should not be less than the rear end, and if the airbag cavity is small, the front end of the airbag should be guaranteed. The vacated length is less than the back end.

Compared with the prior art, the beneficial effects of the present invention are:

1) Separate the injection tube and the drainage tube: the operation of injecting or draining into the cyst will result in residual drug or tissue fluid in the indwelling tube, and the amount of drug injected into the cyst is calculated by the dose and needs to be precisely controlled. , the separate setting can ensure that each injection of medicinal liquid will not be affected by the residual tissue fluid during the last drainage process, that is, the medicinal liquid in the syringe first injects the residual medicinal liquid into the cyst cavity each time the medicinal liquid is injected, and then The same volume of liquid medicine remains in the injection tube, and the injection and drainage dose is accurate.

2) The structure of the air bag and the isolation sleeve is adopted: the air bag can be divided into two parts: the front and the rear, the air bag at the front end is located inside the bag cavity, and the air bag at the rear end is located outside the bag chamber. The indwelling tube is fixed, that is, the indwelling tube cannot be separated from the bladder cavity and will not continue to extend into the bladder cavity, so as to avoid stabbing the tissue of the cyst cavity; a balloon can be divided into two by using an isolation sleeve, and the length of the isolation sleeve can be cut by cutting to control the distance between the two airbags;

3) By controlling the leakage length of the front and rear ends of the airbag and the saturation degree of the airbag inflation, it is ensured that the airbag located in the airbag cavity is of a suitable size.

4) The external injection tube is divided into two parts by the tee, and different medicinal liquids can be injected respectively at the two entrances of the tee to achieve the effect of dispensing injection.

Description of drawings

The accompanying drawings that form a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute improper limitations on the present application.

Fig. 1 is the schematic axonometric view of each part of the structure connection of the present invention;

Fig. 2 is the front view of the structural schematic diagram of the present invention;

3 is a partial cross-sectional view of a schematic structural view in a top view direction of the present invention;

Fig. 4 is the structural enlargement schematic diagram of A part among Fig. 3;

5 is a schematic axonometric view of the structure of the shunt part of the present invention;

FIG. 6 is a full cross-sectional view of the branching portion in a plan direction.

In the figure, 1. Injection tube; 2. Drainage tube; 3. Airbag; 4. First air delivery tube; 5. Diversion part; 6. External drainage tube; 7. Plastic handle; 8. Introducing needle; 9. Tee 10, the second air delivery pipe; 11, the isolation sleeve; 12, the external injection pipe; 13, the drainage channel; 14, the rubber plug; 15, the guide channel;

Detailed ways

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

In a typical embodiment of the present application, as shown in FIGS. 1-6 , a novel composite injection drainage needle includes a guide needle 8 , an indwelling hose and a shunt 5 , the indwelling hose and the shunt 5 The guide needle 8 passes through the shunt part 5 and the indwelling hose in turn; the indwelling hose includes an injection tube 1, which is fixedly connected with the drainage tube 2, and the injection tube 1 is connected with the drainage tube The outer circumferential surface of the tube 2 is tangent; the drainage tube 2 is fixedly connected to the outer circumferential surface of the indwelling hose, and the outer surface of the drainage tube 2 is sleeved with an isolation sleeve 11, and the isolation sleeve 11 can be along the injection The axial direction of the tube 1 slides back and forth, and the isolation sleeve 11 is pressed against the outer surface of the drainage tube 2; Connect to external drainage tube 6 .

The diversion part 5 is provided with a drainage channel 13 and a guide channel 15 that are parallel to each other. The middle part of the guide channel 15 communicates with the injection channel 16, and the angle between the injection channel 16 and the guide channel 15 is 45 degrees. . One end of the drainage channel 13 is communicated with the drainage tube 2 , one end of the guiding channel 15 is communicated with the injection tube 1 , the guiding needle 8 passes through the guiding channel 15 and the injection tube 1 in sequence, and the drainage channel 13 The other end of the injection channel 16 is communicated with the external drainage tube 6 , and the other end of the injection channel 16 is communicated with the external injection tube 12 . The middle of the injection tube 1 and the drainage tube 2 is a rigid plastic tube, the upper ring of the rigid plastic tube is sleeved with a drainage tube 2, and the front end of the drainage tube 2 is provided with a first inflation port (not shown in the figure). ), the rear end of the drainage pipe 2 is provided with a second inflatable port (not shown in the figure), the first inflatable port is communicated with the first air delivery pipe 4, and the second inflatable port is connected with the second gas delivery pipe 10. Connected.

The head of the guide needle 8 is a conical sharp structure, the tail of the guide needle 8 is fixedly connected with the plastic handle 7, the guide channel 15 is provided with a rubber plug 14, and the guide needle 8 passes through the plastic handle 7. Enter the guide channel 15 through the rubber plug 14 . The length of the injection tube 1 is longer than that of the drainage tube 2. The front ends of the tube walls of the injection tube 1 and the drainage tube 2 are provided with through holes (not shown in the figure), and the through holes make the injection and drainage range wider. The outlet of the external injection pipe 12 is connected to an interface of the three-way 9 , and the external injection pipe 12 and the external drainage pipe 6 are respectively provided with on-off valves (not shown in the figure).

The head of the guide needle 8 is a sharp metal structure and its head protrudes from the front end of the injection tube 1 to penetrate the outer tissue of the capsule wall, and the middle part is a metal cylindrical solid mechanism for placing the injection tube 1 and the drainage tube 2 into The specified position of the bladder cavity, the tail is a plastic handle 7 for connecting with the front metal structure and pulling out the guide needle

The head of the injection tube 1 is about 5mm longer than the head of the drainage tube 2. The injection tube 1 is wrapped in the middle of the guide needle 8 and fits tightly, and can be punctured with the guide needle 8. After the guide needle 8 is pulled out, the injection tube 1 is left in the in the cystic cavity;

3 cm behind the head of the drainage tube 2, a drainage tube 2 is set on the outside of the indwelling hose. The drainage tube 2 wraps the drainage tube 2 and the injection tube 1 with a length of about 5 cm in total. The drainage tube 2 presses the indwelling hose to block the drainage. The outer layer of the drainage tube 2 is covered with an isolation sleeve 11 to block the gas circulation of the front and rear drainage tubes 2. The isolation sleeve 11 can slide back and forth.

The external injection tube 12 can be used for injection of various sclerosing agents, flushing liquids, or for direct injection of foam sclerosing agents;

The tail of the external drainage tube 6 is an open nozzle, which can be connected to a negative pressure suction bag, a negative pressure drainage tube 2, an empty needle, and the like.

The cyst cavity injection and drainage method using any one of the above-mentioned novel compound injection drainage needles is characterized in that, step 1: measure the size of the cyst cavity according to the ultrasonic detection technology, and determine the puncture point, the puncture direction and the thickness of the punctured tissue;

Step 2: Determine the length of the isolation sleeve 11 according to the data obtained in the previous step, and cut the isolation sleeve 11 to meet the length requirements;

Step 3: Pass the injection tube 1 and the drainage tube 2 through the isolation sleeve 11 and make the isolation sleeve 11 loop on the drainage tube 2, and the drainage tube 2 is divided into two parts: the front end and the rear end;

Step 4: Pass the guide needle 8 through the shunt 5 and the indwelling hose in turn, inflate the rear end of the drainage tube 2, and the indwelling hose is driven into the bladder cavity by the guide needle 8; After entering the inside of the bladder, pull out the guide needle 8 and inflate the front end of the drainage tube 2, and the inflation amount of the front end of the drainage tube 2 is controlled according to the size of the bladder;

Step 5: Connect the end of the external drainage tube 6 with a negative pressure suction bag or a negative pressure drainage tube 2, an empty needle and other devices to discharge the cystic fluid inside the cyst cavity, connect the end of the external injection tube 12 with the needle syringe, and use the needle tube The syringe injects sclerosant or flushing fluid into the cavity.

In step 2, the distance between the front end and the rear end of the drainage tube 2 is determined by the length of the isolation sleeve 11, and the distance between the front end and the rear end of the drainage tube 2 is determined by the size of the cyst and the thickness of the tissue.

In the step 3, the length of the empty space between the front end and the rear end of the drainage tube 2 is determined by the size of the bladder cavity. If the bladder cavity is large, it is ensured that the empty length of the front end of the drainage tube 2 is not less than the rear end. The vacant length of the front end of the drainage tube 2 is smaller than that of the rear end.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (7)

1. The novel composite injection drainage needle is characterized by comprising a guide needle, an indwelling hose and a shunt part, wherein the indwelling hose is communicated with the shunt part, and the guide needle sequentially penetrates through the shunt part and the indwelling hose;

the indwelling hose comprises an injection tube, the injection tube is fixedly connected with the drainage tube, and the injection tube is tangent to the outer circular surface of the drainage tube; the head of the guide needle is of a sharp metal structure, the head of the guide needle extends out of the front end of the injection tube, and the injection tube is wrapped in the middle of the guide needle and is tightly attached to the middle of the guide needle to puncture along with the guide needle;

the outer circle surface of the indwelling hose is fixedly connected with an air bag, the outer surface of the air bag is sleeved with an isolating sleeve in a surrounding manner, the isolating sleeve can slide back and forth along the axis direction of the injection tube, and the isolating sleeve is tightly pressed on the outer surface of the air bag to block the air circulation of the air bag at the front end and the rear end; the method comprises the following steps that a separation sleeve is adopted to divide an air bag into two air bags, and the distance between the two air bags is controlled by cutting the length of the separation sleeve;

the balloon is used to: after the guide needle sequentially penetrates through the shunt part and the indwelling hose, inflating the rear end of the air bag, and penetrating the indwelling hose into the air bag cavity under the driving of the guide needle; after the indwelling hose enters the sac cavity, the guide needle is pulled out and the front end of the air bag is inflated, and the inflation quantity of the front end of the air bag is controlled according to the size of the sac cavity;

one end of the shunting part is connected with the indwelling hose, and the other end of the shunting part is respectively connected with an external injection tube and an external drainage tube.

2. The novel composite injection drainage needle as claimed in claim 1, wherein the shunt part is provided with a drainage channel and a guide channel which are parallel to each other, the middle part of the guide channel is communicated with the injection channel, and the included angle between the injection channel and the guide channel is 45 degrees.

3. The novel composite injection drainage needle as claimed in claim 2, wherein one end of the drainage channel is communicated with a drainage tube, one end of the guide channel is communicated with an injection tube, the guide needle sequentially passes through the guide channel and the injection tube, the other end of the drainage channel is communicated with an external drainage tube, and the other end of the injection channel is communicated with an external injection tube.

4. The novel composite injection drainage needle as claimed in claim 2, wherein the middle parts of the injection tube and the drainage tube are made of a rigid plastic tube, the rigid plastic tube is sleeved with an air bag, the front end of the air bag is provided with a first inflation port, the rear end of the air bag is provided with a second inflation port, the first inflation port is communicated with the first air delivery pipe, and the second inflation port is communicated with the second air delivery pipe.

5. The novel composite injection drainage needle as claimed in claim 2, wherein the tail part of the guide needle is fixedly connected with the plastic handle, a rubber plug is arranged in the guide channel, and the guide needle passes through the rubber plug and enters the guide channel.

6. The novel composite injection drainage needle as claimed in claim 1, wherein the length of the injection tube is longer than that of the drainage tube, and the front ends of the tube walls of the injection tube and the drainage tube are provided with through holes.

7. The novel composite injection drainage needle as claimed in claim 1, wherein the outlet of the external injection tube is connected with a port of a tee joint, and the external injection tube and the external drainage tube are respectively provided with an open-close valve.

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