CN204618300U - A kind of CT Guided Percutaneous Transthoracic Needle Aspiration Biopsy needle angle indicator - Google Patents

Abstract

The utility model discloses a CT-guided percutaneous lung puncture biopsy needle angle indicator, which comprises a fixed frame, a horizontal frame seat, and an angle adjustment rod. The middle part of the fixed frame is provided with a horizontal chute and a vertical channel. The two ends of the fixing frame are connected and fixed on the horizontal frame base, the angle adjusting rod is placed in the vertical channel, the angle adjusting rod is positioned on the fixing frame through the positioning shaft, and the angle adjusting rod can be wound around the positioning shaft Swing left and right, the positioning shaft slides horizontally in the horizontal chute. The utility model can be placed on the bed end or the bed body of the scanning bed when it is far away from the operation area (that is, the lungs of the human body), which can not only enable the doctor to accurately grasp the puncture angle, but also effectively perform aseptic operation, and prevent accidents during the puncture process. bacterial contamination. The utility model has fewer parts and is easy to produce and assemble. Compared with other existing puncture reference instruments, the utility model has the advantages of accurate positioning of the needle insertion angle, is far away from the operation area, and complies with the absolute aseptic operation specification during the puncture process.

Description

A CT-guided needle angle indicator for percutaneous lung biopsy

technical field

The utility model relates to a puncture angle indicator, in particular to a CT-guided percutaneous lung puncture biopsy needle entry angle indicator.

Background technique

CT-guided percutaneous lung biopsy provides histological and cytological examination specimens for the diagnosis of pulmonary space-occupying lesions, especially for the accurate diagnosis of small pulmonary nodules (≤3cm), and has been widely used clinically. In use, after the lung lesions are confirmed by CT scan, the optimal needle insertion angle is planned according to the CT image. However, in actual operation, the doctor who needs to perform the operation determines the needle insertion angle based on subjective judgment, especially for small deep lung lesions. Nodules and small angle differences will lead to inability to accurately hit the lesion and remove the lesion tissue. In this way, during the puncture process, the needle needs to be inserted multiple times to adjust the needle angle, which increases the risk of pneumothorax, lung tissue damage and bleeding.

In the existing puncture positioning device, it can make the operation convenient in the puncture of other organs or parts of the human body (without breathing movement). The operator needs to make appropriate adjustments according to the changes in the intraoperative environment in order to remove the lesion tissue smoothly. Due to the use of the fixation device, many of the above factors affect the operator's operation, and at the same time increase the contamination of the operation area and the contamination probability of the needle track during the puncture process. Moreover, the existing positioning device is complicated to operate, and the operation takes a long time, increasing the difficulty of the operation. Therefore, there is an urgent need to provide an easy-to-operate lung puncture needle angle indicator to solve the above problems.

Utility model content

In view of this, the utility model provides a CT-guided percutaneous lung puncture biopsy needle angle indicator, which solves the complex positioning process of the puncture positioning device in the prior art, which is time-consuming, easy to pollute, and unfavorable for the operator to adjust The grasp of the environment and other issues.

The technical means adopted in the utility model are as follows: a CT-guided percutaneous lung puncture biopsy needle angle indicator, including a fixed frame, a horizontal frame seat, an angle adjustment rod, a protractor, and a horizontal chute and a protractor are arranged in the middle of the fixed frame. Vertical channel, the two ends of the fixed frame are connected and fixed on the horizontal frame seat, the angle adjustment rod is placed in the vertical channel, the angle adjustment rod is positioned on the fixed frame through the positioning shaft, the angle The adjusting rod can swing left and right around the positioning shaft, and the positioning shaft slides horizontally in the horizontal chute.

Preferably, the positioning shaft includes bolts, nuts and clamping blocks, the clamping blocks match the horizontal chute, the bolts pass through the clamping blocks and are fixedly connected, and the nuts are screwed to the bolts.

Preferably, a protractor is also included, and the protractor is fixed on the clamping block.

Preferably, a scale is provided on the middle surface of the fixing frame.

Preferably, the length of the horizontal chute and the vertical channel is 30cm-50cm.

Preferably, both the fixed frame and the horizontal frame are made of wooden materials.

Preferably, a sliding groove is provided at the bottom of the horizontal stand.

When in use, place the needle insertion angle indicator at the end of the examination table, determine the depth of the puncture lesion and the best needle insertion angle at the CT workstation, and then adjust the direction and angle of the angle adjustment lever to fix the angle indicator. When the surgeon inserts the needle, the assistant observes to make the angle of the puncture needle parallel to the angle indicator rod of the instrument, and inserts the needle in this direction to reach the lesion in the lung. Under normal circumstances, a single needle insertion can hit the target lesion. In case of obstruction by ribs, large blood vessels, nerves, etc. in the puncture path, the skin needle entry point should be changed at any time to avoid interference factors. It prevents the operator from roughly judging the direction and angle of needle insertion based on subjective experience for the first time, and needs multiple needle insertions to adjust the angle, which increases the risk of bleeding and pneumothorax and takes a long time for the operation.

The beneficial effects of the utility model are: the utility model can be placed on the bed end or the bed body of the scanning bed when it is far away from the operation area (that is, the lungs of the human body), which can not only enable the doctor to accurately grasp the puncture angle, but also effectively prevent the puncture Bacterial contamination in the process. The utility model has fewer components and is easy to produce and assemble. Compared with other existing puncture reference instruments, it has the advantages of convenient positioning of the needle insertion angle, being far away from the operation area, conforming to the absolute aseptic operation specification during the puncture process, and having a simple structure. The advantage of low cost.

Description of drawings

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

Fig. 2 is a schematic top view of the utility model.

Detailed ways

The conception, specific structure and technical effects of the utility model will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Apparently, the described embodiments are only some of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without paying creative efforts, All belong to the protection scope of the utility model. In addition, all the connection/connection relationships mentioned in this article do not refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. Each technical feature in the utility model can be combined interactively under the premise of not conflicting with each other.

Referring to Figures 1 to 2, a CT-guided percutaneous lung biopsy needle angle indicator includes a fixed frame 1, a horizontal frame seat 2, and an angle adjustment rod 3, and the middle part of the fixed frame is provided with a horizontal chute 4 and Vertical channel 5, the two ends of the fixed frame 1 are connected and fixed on the horizontal frame 2, the angle adjustment rod 3 is placed in the vertical channel 5, and the angle adjustment rod 3 is positioned by the positioning shaft 6 On the fixed frame 1 , the angle adjusting rod 3 can swing left and right around the positioning shaft 6 , and the positioning shaft 6 slides horizontally in the horizontal chute 4 . When in use, place the needle insertion angle indicator at the end of the examination table, determine the depth of the puncture lesion and the optimal needle insertion angle at the CT workstation, and then adjust the direction and angle of the angle adjustment rod 3 to fix the angle indicator. When the operator inserts the needle, the assistant observes to make the angle of the puncture needle parallel to the angle adjustment rod of the instrument, and inserts the needle in this direction to reach the lesion in the lung. Under normal circumstances, a single needle insertion can hit the target lesion. In case of obstruction by ribs, large blood vessels, nerves, etc. in the puncture path, the skin needle entry point should be changed at any time to avoid interference factors. It prevents the operator from roughly judging the direction and angle of needle insertion based on subjective experience for the first time, and needs multiple needle insertions to adjust the angle, which increases the risk of bleeding and pneumothorax and takes a long time for the operation. The utility model has fewer components and is easy to produce and assemble. Compared with other existing puncture reference instruments, it has the advantages of convenient positioning of the needle insertion angle, being far away from the operation area, conforming to the absolute aseptic operation specification during the puncture process, and having a simple structure. The advantage of low cost.

Preferably, the positioning shaft 6 includes a bolt 601, a nut 602 and a clamping block 7, the clamping block 7 is matched with the horizontal chute 4, the bolt 601 is fixedly connected through the clamping block 7, and the nut 602 is screwed with the bolt 601. The clamping block 7 can effectively fix the positioning shaft 6 and slide the positioning shaft 6 stably to enhance the contact fixity, and it is convenient and quick to disassemble or position and adjust.

Preferably, a protractor 8 is also included, and the protractor 8 is fixed on the block 7 . The protractor 8 slides along with the sliding of the block 7, and the positioning shaft 6, the block 7, the protractor 8, and the angle adjusting rod 3 slide left and right relatively stationary in the horizontal direction. After the lung lesion is confirmed by CT scan, the optimal needle insertion angle is planned according to the CT image, and the angle position of the angle adjustment rod 3 is accurately indicated, so as to guide the puncturer to position the angle during puncture, improve the success rate of puncture, and reduce complications of patients risks that arise.

Preferably, a scale 9 is provided on the middle surface of the fixing frame 1 . The angle adjustment rod 3 can be used to indicate the angle position of the lung without dead angle.

Preferably, the length of the horizontal chute 4 and the vertical channel 5 is 30cm-50cm. The length can be determined according to the condition of a specific patient, and can be applied to patients of various body types.

Preferably, both the fixed frame 1 and the horizontal frame base 2 are made of wood. Compared with the use of steel materials, the use of wooden materials can reduce costs and is more convenient to manufacture. In actual use, the pollution coefficient during puncture can be reduced, and a sterile environment can be maintained during puncture.

Preferably, the bottom of the horizontal stand 2 is provided with a sliding groove, which matches the slideway on the side of the scanning bed, and the utility model can be slid back and forth along the side of the bed according to the distance required for detection.

The following are specific examples:

Example 1

As shown in Figure 1 and Figure 2, a CT-guided percutaneous lung biopsy needle angle indicator includes a fixed frame 1, a horizontal frame seat 2, and an angle adjustment rod 3, and a horizontal chute is provided in the middle of the fixed frame 4 and a vertical channel 5, the two ends of the fixed frame 1 are connected and fixed on the horizontal stand 2, the angle adjustment rod 3 is placed in the vertical channel 5, and the angle adjustment rod 3 passes through the positioning shaft 6 is positioned on the fixed frame 1, the angle adjustment rod 3 can swing left and right around the positioning shaft 6, and the positioning shaft 6 slides horizontally in the horizontal chute 4, and the positioning shaft 6 includes a bolt 601, a nut 602 and a block 7. The block 7 is matched with the horizontal chute 4, the bolt 601 is fixedly connected through the block 7, the nut 602 is screwed to the bolt 601, and the indicator also includes a protractor 8 , the protractor 8 is fixed on the block 7, the middle surface of the fixed frame 1 is provided with a scale 9, the length of the horizontal chute 4 and the vertical channel 5 are 30cm, the fixed frame 1, the horizontal The frames 2 are all made of wood, and the bottom of the horizontal frame 2 is provided with a sliding groove.

Example 2

As shown in Figure 1 and Figure 2, a CT-guided percutaneous lung biopsy needle angle indicator includes a fixed frame 1, a horizontal frame seat 2, and an angle adjustment rod 3, and a horizontal chute is provided in the middle of the fixed frame 4 and a vertical channel 5, the two ends of the fixed frame 1 are connected and fixed on the horizontal stand 2, the angle adjustment rod 3 is placed in the vertical channel 5, and the angle adjustment rod 3 passes through the positioning shaft 6 is positioned on the fixed frame 1, the angle adjustment rod 3 can swing left and right around the positioning shaft 6, and the positioning shaft 6 slides horizontally in the horizontal chute 4, and the positioning shaft 6 includes a bolt 601, a nut 602 and a block 7. The block 7 is matched with the horizontal chute 4, the bolt 601 is fixedly connected through the block 7, the nut 602 is screwed to the bolt 601, and the indicator also includes a protractor 8 , the protractor 8 is fixed on the block 7, the middle surface of the fixed frame 1 is provided with a scale 9, the length of the horizontal chute 4 and the vertical channel 5 are 40cm, the fixed frame 1, the horizontal The frames 2 are all made of wood, and the bottom of the horizontal frame 2 is provided with a sliding groove.

Example 3

As shown in Figure 1 and Figure 2, a CT-guided percutaneous lung biopsy needle angle indicator includes a fixed frame 1, a horizontal frame seat 2, and an angle adjustment rod 3, and a horizontal chute is provided in the middle of the fixed frame 4 and a vertical channel 5, the two ends of the fixed frame 1 are connected and fixed on the horizontal stand 2, the angle adjustment rod 3 is placed in the vertical channel 5, and the angle adjustment rod 3 passes through the positioning shaft 6 is positioned on the fixed frame 1, the angle adjustment rod 3 can swing left and right around the positioning shaft 6, and the positioning shaft 6 slides horizontally in the horizontal chute 4, and the positioning shaft 6 includes a bolt 601, a nut 602 and a block 7. The block 7 is matched with the horizontal chute 4, the bolt 601 is fixedly connected through the block 7, the nut 602 is screwed to the bolt 601, and the indicator also includes a protractor 8 , the protractor 8 is fixed on the block 7, the middle surface of the fixed frame 1 is provided with a scale 9, the length of the horizontal chute 4 and the vertical channel 5 are 50cm, and the fixed frame 1, the horizontal The frames 2 are all made of wood, and the bottom of the horizontal frame 2 is provided with a sliding groove.

In summary, using the CT-guided percutaneous lung puncture biopsy needle angle indicator provided by the utility model, the utility model can be placed at the end of the scanning bed or at the bed The body can not only enable the doctor to accurately grasp the puncture angle, but also effectively prevent bacterial contamination during the puncture process. The utility model has fewer components and is easy to produce and assemble. Compared with other existing puncture reference instruments, it has the advantages of convenient positioning of the needle insertion angle, being far away from the operation area, conforming to the absolute aseptic operation specification during the puncture process, and having a simple structure. The advantage of low cost.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present utility model shall include Within the protection scope of the utility model.

Claims (7)

1. A CT-guided percutaneous lung biopsy needle insertion angle indicator, characterized in that it comprises a fixed mount, a horizontal stand, an angle adjustment rod, and a protractor, and the middle part of the fixed mount is provided with a horizontal chute and a vertical groove The two ends of the fixed frame are connected and fixed on the horizontal frame seat, the angle adjustment rod is placed in the vertical channel, the angle adjustment rod is positioned on the fixed frame through the positioning shaft, and the angle adjustment rod can be Swing left and right around the positioning shaft, and the positioning shaft slides horizontally in the horizontal chute. 2. The CT-guided percutaneous lung biopsy needle angle indicator according to claim 1, wherein the positioning shaft includes a bolt, a nut and a block, and the block is connected to the horizontal chute. match, the bolts pass through the clamping block and are fixedly connected, and the nuts are screwed into the bolts. 3 . The CT-guided needle angle indicator for percutaneous lung biopsy according to claim 2 , further comprising a protractor, and the protractor is fixed on the block. 4 . 4. The CT-guided percutaneous lung biopsy needle angle indicator according to any one of claims 1 to 3, wherein a scale is provided on the middle surface of the fixing frame. 5. The CT-guided percutaneous lung biopsy needle angle indicator according to any one of claims 1 to 3, characterized in that the lengths of the horizontal chute and the vertical channel are 30 cm to 50 cm. 6 . The CT-guided percutaneous lung biopsy needle angle indicator according to any one of claims 1 to 3 , wherein the fixing frame and the horizontal frame are made of wooden materials. 7 . 7. The CT-guided percutaneous lung biopsy needle angle indicator according to any one of claims 1 to 3, characterized in that a sliding groove is provided at the bottom of the horizontal stand.