CN205548643U - Percutaneous lung puncture positioning tool - Google Patents

Abstract

The utility model discloses a percutaneous lung puncture positioning tool, including pilot pin and the seal wire of taking the scale, the pilot pin includes syringe needle and needle tubing, and the syringe needle is connected in needle tubing one end, is equipped with medicament input port and seal wire socket on the needle tubing, and the seal wire is pegged graft in seal wire socket. The utility model discloses use the seal wire directly to get into the human location that carries out the target site, do not receive respiratory motion's influence, for coaxial pjncture needle provides accurate target site for coaxial pjncture needle puncture easily targets in place in one step, improves percutaneous lung puncture operating efficiency, uses the utility model discloses reducible reliance to the image location avoids the patient to accept CT ray or ultrasonic wave many times, avoids revising position and repeated puncture repeatedly, thereby alleviates the additional injury that reduces the disease.

Description

A positioning tool for percutaneous lung puncture

technical field

The utility model relates to a medical device, in particular to a positioning tool for percutaneous lung puncture.

Background technique

Percutaneous lung puncture is currently a commonly used diagnostic method for lung diseases. At present, the commonly used instruments for percutaneous lung puncture in my country include syringes for injecting anesthetics, biopsy needles for lung biopsy sampling, and biopsy needles for positioning. The general operation steps for puncture operation using the above instruments are as follows: 1. First determine the site to be punctured with the assistance of CT or ultrasound positioning; 2. Inject anesthesia with a syringe according to the positioning, and perform local infiltration anesthesia layer by layer. Pull out the syringe after anesthesia; 3. Use the needle eye on the skin to determine the anesthesia site, and puncture the coaxial puncture needle into the target site; 4. Pull out the needle core in the coaxial puncture needle to empty the cavity of the coaxial puncture needle, The biopsy needle is inserted into the cavity of the coaxial puncture needle and inserted along the coaxial puncture needle to the target site for biopsy sampling. Due to the influence of respiratory activity in the above operations, the coaxial puncture needle cannot ensure smooth and accurate puncture in place at one time, and multiple punctures often need to be punctured with the help of CT or ultrasound. Due to the limitations of the equipment, the above-mentioned percutaneous lung puncture method has the following disadvantages: in the process of local anesthesia, the coaxial puncture needle needs to be positioned through images to confirm that the coaxial puncture needle can reach the target site through the local anesthesia site, so that The patient may receive CT rays or ultrasound multiple times, causing physical damage; affected by respiratory movement, the puncture target part moves, and the coaxial puncture needle is difficult to puncture successfully at one time, and may need to be repeated many times, which increases the pain of the patient; repeated puncture and multiple Secondary image positioning will also cause a serious waste of time, further increasing the load on already very busy medical units. The utility model with the publication number CN204446042U disclosed a CT-guided percutaneous lung puncture positioning needle on July 8, 2015, including a needle tube, a needle core and a needle seat; the tail of the needle tube is fixedly arranged on the front end of the needle seat; The needle core extends into the needle tube through the needle seat; the length of the needle tube is 12cm; on the outer surface of the needle tube from the needle tip to the needle tail direction, a row of scales are arranged at intervals, and the scale is in millimeters ; Around the circumference of the needle tube, there is a positioning sleeve tightly matched with it. The length of the positioning sleeve is 1-3mm, and X-ray-opaque marking points are set on the positioning sleeve. The utility model increases safety and reduces pain of patients. There is a small rubber ring on the outer surface of the needle tube for calibration, which can ensure that it will not penetrate too deep during the suction process, and achieve a more accurate positioning of the suction amplitude. Marking points, the depth of puncture and the position of the positioning needle can be seen in real time during CT, which greatly increases the effect of puncture. However, when this utility model is used, it is also mainly guided by image positioning, and it is still difficult to quickly and accurately puncture the lung target part due to the influence of respiratory movement.

Utility model content

The existing percutaneous lung puncture devices are difficult to quickly and accurately locate and puncture the target site, and rely more on image positioning during use, which is not conducive to improving operational efficiency and reducing additional injuries to patients. In order to overcome these defects, the utility model provides a percutaneous lung system that reduces the dependence on image positioning and can ensure accurate positioning and puncture of the target site during percutaneous lung puncture operations, thereby improving operating efficiency and reducing additional injuries to patients. Piercing positioning tool.

The technical scheme of the utility model is: a percutaneous lung puncture positioning tool, including a positioning needle and a guide wire with a scale, the positioning needle includes a needle head and a needle tube, the needle head is connected to one end of the needle tube, and the needle tube is provided with a drug input port and a guide wire Socket, the guide wire is plugged into the guide wire socket. When using this positioning tool, the needle is inserted into the target site, and anesthetic is injected through the drug input port. After local anesthesia is completed, the guide wire is inserted into the human body along the inner cavity of the needle to directly reach the target site where the needle is located, so as to accurately reach the target site, and then Withdraw the needle while one end of the guide wire remains in the human body, and the other end is exposed outside the human body to guide the target site. Afterwards, when the coaxial puncture needle is punctured, the coaxial puncture needle can be set on the guide wire and inserted along the guide wire In the human body, a well-pointed channel is established for final biopsy needle sampling. Since this positioning tool uses a guide wire to directly enter the human body to locate the target part, even if the lungs move to a certain extent due to breathing, the guide wire remaining in the human body can indicate the final target part, which can not only reduce the image The dependence on positioning avoids repeated CT ray or ultrasound for patients, and makes the coaxial puncture needle puncture easy in one step, avoiding repeated image positioning and repeated puncture, thereby improving the operation efficiency of percutaneous lung puncture and reducing the risk of injury. Additional damage to the patient.

Preferably, the needle tube is provided with a drug input branch pipe, and the drug input port is arranged on the drug input branch pipe. There is sufficient space to set up a reliable connection structure by setting the medicine input branch pipe, so that the medicine input port is easier to install, and it is convenient to connect an external syringe for injecting anesthetics, so that it is convenient to use.

Preferably, the guide wire socket is arranged at the opposite end of the needle tube to the needle. The needle and guide wire socket are located at both ends of the needle tube, so that the guide wire can be pushed in a straight line to reduce resistance.

Preferably, a blocking mechanism is provided on the needle tube between the drug input branch tube and the guide wire socket. The partition mechanism can isolate the drug input branch pipe from the guide wire socket, so as to prevent the drug from being lost from the guide wire socket when the anesthetic is injected.

Preferably, the needle tube is a hard tube, the blocking mechanism includes a blocking ball, the blocking ball is arranged in a valve seat, the valve seat is integrally formed on the peripheral surface of the needle tube, and the blocking ball is connected to the valve through a handle On the seat, the handle is threadedly connected with the valve seat. The opening and closing cooperation between the blocking ball and the needle tube can be controlled by rotating the rotary handle, so as to realize the on-off between the drug input branch tube and the guide wire socket, so as to perform corresponding function switching in different stages of the puncture operation. The partition mechanism has reasonable structure and reliable operation, and is suitable for hard needle tubes.

Alternatively, the needle tube is a hose, and the blocking mechanism is a pressure wheel type flow rate regulator, and the pressure wheel type flow rate regulator is clamped outside the needle tube. The pressure wheel type flow rate regulator is mature in technology, easy to use, and suitable for soft needle tubes.

Preferably, the tip of the guide wire is round and blunt. The end of the guide wire enters the human body, and the blunt shape will not cause damage to human tissue.

The beneficial effects of the utility model are:

Improve the efficiency of percutaneous lung puncture operation. The utility model uses the guide wire to directly enter the human body to locate the target part, so that the subsequent puncture process is not affected by the breathing movement, and provides an accurate target part for the coaxial puncture needle, making the coaxial puncture needle easy to puncture in one step, improving the percutaneous Lung puncture procedure efficiency.

Reduce additional damage to patients during percutaneous lung puncture operations. The use of the utility model can reduce the dependence on image positioning, prevent patients from repeatedly receiving CT rays or ultrasound, and avoid repeated image positioning and repeated puncture, thereby reducing the additional damage to patients.

Description of drawings

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

Fig. 2 is a schematic diagram of a use state when the guide wire of the present invention is inserted.

In the figure, 1-needle, 2-needle tube, 3-guide wire, 4-medicine input branch, 5-guide wire socket, 6-blocking ball, 7-rotary handle, 8-valve seat, 9-sealing pad.

detailed description

The utility model will be further described below in conjunction with the specific embodiments of the accompanying drawings.

Example 1:

As shown in Figures 1 and 2, a percutaneous lung puncture positioning tool includes a positioning needle and a graduated guide wire 3, the guide wire 3 is a flexible metal wire, the positioning needle includes a needle 1 and a needle tube 2, and the needle tube 2 is Cylindrical hard tube, the needle 1 is detachably socketed on one end of the needle tube 2, the needle tube 2 is provided with a drug input port and a guide wire socket 5, and the guide wire 3 is inserted into the guide wire socket 5, and the diameter of the guide wire 3 is slightly smaller than the needle head 1 inner diameter. A medicine input branch pipe 4 is arranged obliquely on the needle tube 2 , and the medicine input branch pipe 4 is formed integrally with the needle tube 2 . The guide wire socket 5 is located at the opposite end of the needle tube 2 . A partition mechanism is provided on the needle tube 2 between the drug input branch pipe 4 and the guide wire socket 5, and the partition mechanism includes a sealing ball 6, which is arranged in a cylindrical valve seat 8, and the valve seat 8 is integrally formed. On the peripheral surface of the needle tube 2, the sealing ball 6 is connected to the valve seat 8 through the rotary handle 7, the sealing ball 6 is fixedly connected to the free end of the rotary handle 7, and the joint between the sealing ball 6 and the rotary handle 7 is provided with a sealing gasket 9 , the diameter of the plugging ball 6 is adapted to the inner diameter of the valve seat 8 and the needle tube 2, the gasket 9 is adapted to the valve seat 8, and the handle 7 is threaded to the valve seat 8. The end of the guide wire 3 is in a blunt shape, which is spherical in this embodiment.

When using this positioning tool, the blocking ball 6 is now blocked by the needle tube 2 through the adjustment of the rotary handle 7, the guide wire 3 is pulled above the blocking ball 6, the needle 1 is inserted into the target site, and anesthesia is injected through the drug input port to complete local anesthesia Finally, put the blocking ball 6 into the valve seat 8 as a whole, let out the channel, and puncture the guide wire 3 into the human body along the inner cavity of the needle 1 to directly reach the target site where the needle is located, so as to quickly and accurately carry out the lung target. Then withdraw the needle 1 and one end of the guide wire 3 remains in the human body, and the other end is exposed outside the human body to guide the target site. At the same time, the scale on the guide wire 3 shows the depth of the target site, and then the coaxial needle puncture is performed. At the same time, the coaxial puncture needle can be set on the guide wire 3, and inserted into the human body along the guide wire 3 to establish an accurate channel for the final biopsy needle sampling, so that the whole percutaneous lung puncture operation only needs to find the target before injecting anesthesia The accurate positioning of the target part to be found in each step can be completed by simply selecting the position, and there is no need for repeated adjustment and repositioning thereafter.

Example 2:

Guide wire 3 is made of flexible carbon fiber material. The needle tube 2 is a flexible pipe, and the blocking mechanism is a pressure wheel type flow rate regulator, which is clamped outside the needle tube 2 . The end of the guide wire 3 is olive-shaped. All the other are with embodiment 1.

Claims (7)

1. A percutaneous lung puncture positioning tool, characterized in that it includes a positioning needle and a graduated guide wire (3), the positioning needle includes a needle (1) and a needle tube (2), the needle (1) is connected to the needle tube (2) At one end, the needle tube (2) is provided with a drug input port and a guide wire socket (5), and the guide wire (3) is inserted into the guide wire socket (5). 2. The percutaneous lung puncture positioning tool according to claim 1, characterized in that the needle tube (2) is provided with a drug input branch (4), and the drug input port is arranged on the drug input branch (4). 3. The percutaneous lung puncture positioning tool according to claim 2, characterized in that the guide wire socket (5) is provided at the opposite end of the needle tube (2). 4. The percutaneous lung puncture positioning tool according to claim 3, characterized in that a partition mechanism is provided on the needle tube (2) between the drug input branch tube (4) and the guide wire socket (5). 5. The percutaneous lung puncture positioning tool according to claim 4, characterized in that the needle tube (2) is a hard tube, the blocking mechanism includes a blocking ball (6), and the blocking ball (6) is arranged on a valve seat Among them, the valve seat is integrally formed on the peripheral surface of the needle tube (2), the plugging ball (6) is connected to the valve seat through the handle (7), and the handle (7) is threadedly connected to the valve seat. 6. The percutaneous lung puncture positioning tool according to claim 4, characterized in that the needle tube (2) is a flexible tube, and the blocking mechanism is a pressure wheel type flow rate regulator, which is clamped on the outside the needle tube (2). 7. The positioning tool for percutaneous lung puncture according to any one of claims 1 to 6, characterized in that the tip of the guide wire (3) is round and blunt.