Percutaneous lung puncture needle adjusting bracket

Abstract

The utility model relates to a percutaneous lung puncture needle adjusting frame which comprises a frame body, a mounting seat and various guide sleeves. The mounting seat is movably mounted on the frame body; the multiple guide sleeves are selectively installed on the installation base, each guide sleeve is provided with a guide channel for percutaneous lung puncture needles to penetrate through, the axis direction of each guide sleeve can be adjusted along with movement of the installation base, and the percutaneous lung puncture needles of different sizes can penetrate through the multiple guide channels; the limiting structure is connected to the frame body and the mounting base and used for limiting the mounting base to move relative to the frame body when the mounting base moves to a preset position. According to the scheme, the percutaneous lung puncture needle can be guided and limited through the guide sleeve, the percutaneous lung puncture needle is prevented from deviating in the needle inserting process, the needle inserting accuracy is effectively guaranteed, and operation is easy and convenient; meanwhile, the guide sleeves of various sizes are arranged, the corresponding guide sleeves can be installed according to the size of the percutaneous lung puncture needle in the operation process, practicability is good, the structure is simple, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of percutaneous pulmonary puncture needle auxiliary adjustment equipment, in particular to a percutaneous pulmonary puncture needle adjustment frame. Background Art

[0002] CT-guided percutaneous lung biopsy is a relatively mature technology developed by the Department of Radiology in the past decade. It is mainly suitable for patients with lung lesions, such as masses, nodules, soft tissue lesions, etc. In order to facilitate the correct positioning of doctors and improve the success rate of puncture, the percutaneous lung puncture needle is generally assisted by a percutaneous lung puncture biopsy needle adjustment angle indicator to perform percutaneous lung puncture.

[0003] For example, patent CN 206508019 U discloses an automatically adjustable angle indicator for percutaneous lung puncture biopsy needle insertion under CT guidance, which controls a first electric push rod to push or pull an angle adjustment rod so that the angle adjustment rod forms an angle consistent with the optimal needle insertion angle with the vertical direction, and then makes the insertion angle of the puncture needle parallel to the angle adjustment rod of the indicator, and inserts the needle in this direction to reach the lesion in the lung.

[0004] However, this patent requires medical staff to hold the percutaneous pulmonary puncture needle and move it along the angle adjustment rod. The percutaneous pulmonary puncture needle lacks a guide limit structure and still has a high risk of deviation. In addition, the cost of installing an electric push rod is relatively high. Utility Model Content

[0005] In view of this, it is necessary to provide a percutaneous pulmonary puncture needle adjustment rack to solve the technical problems in the prior art that medical staff are required to hold the percutaneous pulmonary puncture needle and move it along the angle adjustment rod, the percutaneous pulmonary puncture needle lacks a guide limiting structure, and there is still a high risk of deviation.

[0006] The utility model provides a percutaneous pulmonary puncture needle adjustment frame, which comprises:

[0007] Frame;

[0008] A mounting seat, movably mounted on the frame;

[0009] A plurality of guide sleeves can be selectively mounted on the mounting seat, each of the guide sleeves having a guide channel for the percutaneous pulmonary puncture needle to pass through, and the axial direction of the guide sleeve can be adjusted following the movement of the mounting seat, wherein the plurality of guide channels can be used for the percutaneous pulmonary puncture needles of different sizes to pass through; and

[0010] The limiting structure is connected to the frame and the mounting seat, and is used for limiting the movement of the mounting seat relative to the frame when the mounting seat moves to a preset position.

[0011] Optionally, the frame includes a mounting plate, and the mounting plate is provided with a slide groove arranged in an annular shape;

[0012] The mounting seat is provided with an avoidance groove corresponding to the mounting plate, the avoidance groove is provided for the peripheral edge of the mounting plate to clamp, so that the mounting seat can move along the circumference of the mounting plate, and the avoidance groove is provided with a connecting hole corresponding to the slide groove;

[0013] The limiting structure includes a limiting nut and a limiting bolt. The limiting bolt is passed through the connecting hole and the sliding groove. The limiting nut is screwed on the limiting bolt so as to press the mounting seat against the mounting plate.

[0014] Optionally, the mounting seat is provided with a limiting groove with one end being open, and the limiting groove extends along the circumference of the mounting plate;

[0015] The guide sleeve includes an arc-shaped limit plate and a sleeve. One end of the arc-shaped limit plate is clamped in the limit groove from the opening, and the other end extends out of the limit groove. The sleeve is connected to the end of the arc-shaped limit plate extending out of the limit groove, and its axis is located in the plane where the mounting plate is located.

[0016] Optionally, the opening is located on a side of the limiting groove away from the body to be punctured.

[0017] Optionally, the mounting plate is provided with a first scale line along its circumference, and the first scale line is located on one side of the slide groove.

[0018] Optionally, the frame further includes a base, a rotating shaft and a connecting plate, wherein the rotating shaft is rotatably mounted on the base, the connecting plate is connected to the rotating shaft and is connected to the mounting plate, and the axial direction of the mounting plate intersects with the axial direction of the rotating shaft.

[0019] Optionally, a transmission gear is provided on the rotating shaft, and the frame also includes a driving handle, which is rotatably mounted on the base and has an axial direction that is the same as the axial direction of the rotating shaft, and is provided with a driving gear, which is meshed with the transmission gear and has an outer diameter that is smaller than the outer diameter of the transmission gear.

[0020] Optionally, the frame also includes a protective shell, which covers the base and is provided with axial holes corresponding to the driving handle and the rotating shaft respectively, the driving handle and the rotating shaft are respectively passed through the corresponding axial holes, the transmission gear and the driving gear are located in the protective shell, and the mounting plate is located at one end of the rotating shaft extending out of the corresponding axial hole.

[0021] Optionally, the protective shell is further provided with a locking screw hole communicating with its inner cavity, and the locking screw hole extends in the radial direction of the driving handle;

[0022] The frame body also includes a locking bolt, which is screwed into the locking screw hole and one end of which can abut against the outer wall of the driving handle to limit the rotation of the driving handle.

[0023] Optionally, the rotating shaft is provided with a plurality of groups of slot structures at intervals along its axial direction, each group of the slot structures comprises two slots, and the two slots in the same group are respectively located on two opposite sides of the rotating shaft, and the sides facing away from each other are open;

[0024] The connecting plate is provided with two clamping strips at intervals corresponding to the clamping slots, and the two clamping strips can be clamped in any two clamping slots in the same group to limit the axial rotation of the connecting plate along the rotating shaft.

[0025] Compared with the prior art, the percutaneous pulmonary puncture needle adjustment frame provided by the utility model can adjust the axial direction of the guide sleeve on the mounting seat to the optimal needle insertion angle through the movable mounting seat. After the needle insertion angle of the guide sleeve is adjusted, the percutaneous pulmonary puncture needle is inserted into the guide sleeve, so that the guide sleeve plays a guiding and limiting role for the percutaneous pulmonary puncture needle, thereby avoiding the deviation of the percutaneous pulmonary puncture needle during the needle insertion process, effectively ensuring the accuracy of the needle insertion, and being easy to operate; at the same time, guide sleeves of various sizes are provided, so that the corresponding guide sleeves can be installed according to the size of the percutaneous pulmonary puncture needle during surgery, which has good practicality, simple structure and low cost.

[0026] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the preferred embodiment of the utility model is described in detail as follows with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0028] Figure 1 A schematic structural diagram of an embodiment of a percutaneous pulmonary puncture needle adjustment frame provided by the utility model;

[0029] Figure 2 for Figure 1 Schematic diagram of the middle connecting plate, mounting plate, mounting seat, guide sleeve and limiting structure;

[0030] Figure 3 for Figure 2 Exploded view of the middle connecting plate, mounting plate, mounting seat, guide sleeve and limiting structure;

[0031] Figure 4 for Figure 3 A schematic diagram of the structure of the middle mounting seat;

[0032] Figure 5 for Figure 4 A cross-sectional view of the middle mounting seat;

[0033] Figure 6 for Figure 1 A partial schematic diagram of the central shaft and the driving handle;

[0034] Figure 7 for Figure 1 Schematic diagram of the structure of the middle protective shell.

[0035] Description of reference numerals:

[0036] 100. Percutaneous pulmonary puncture needle adjustment frame; 1. frame; 11. mounting plate; 11a. slide groove; 111. first scale line; 12. base; 13. rotating shaft; 13a. card slot; 131. transmission gear; 132. third scale line; 133. pointer; 14. connecting plate; 141. card strip; 142. card convex; 15. driving handle; 151. driving gear; 16. protective shell; 16a. shaft hole; 16b. locking screw hole; 161. second scale line; 17. locking bolt; 2. mounting seat; 2a. avoidance groove; 2b. connecting hole; 2c. limit groove; 2d. opening; 3. guide sleeve; 3a. guide channel; 31. arc-shaped limit plate; 32. sleeve; 4. limit structure; 41. limit nut; 42. limit bolt; 200. Percutaneous pulmonary puncture needle. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0038] See also Figures 1 to 7 The percutaneous pulmonary puncture needle adjustment frame 100 includes a frame body 1, a mounting seat 2 and a plurality of guide sleeves 3; the mounting seat 2 is movably mounted on the frame body 1; a plurality of guide sleeves 3 can be selectively mounted on the mounting seat 2, each guide sleeve 3 has a guide channel 3a for the percutaneous pulmonary puncture needle 200 to pass through, and its axial direction can be adjusted following the movement of the mounting seat 2, wherein a plurality of guide channels 3a can be used for the percutaneous pulmonary puncture needles 200 of different sizes to pass through; a limiting structure 4 is connected to the frame body 1 and the mounting seat 2, and is used to limit the movement of the mounting seat 2 relative to the frame body 1 when the mounting seat 2 moves to a preset position. Specifically, the sizes of the plurality of guide channels 3a are different, so that the percutaneous pulmonary puncture needles 200 of different sizes can be used to pass through.

[0039] In the percutaneous pulmonary puncture needle adjustment frame 100 provided by the utility model, the axial direction of the guide sleeve 3 on the mounting seat 2 can be adjusted to the optimal needle insertion angle through the movable mounting seat 2. After the needle insertion angle of the guide sleeve 3 is adjusted, the percutaneous pulmonary puncture needle 200 is inserted into the guide sleeve 3, so that the guide sleeve 3 plays a guiding and limiting role on the percutaneous pulmonary puncture needle 200, avoiding the deviation of the percutaneous pulmonary puncture needle 200 during the needle insertion process, effectively ensuring the accuracy of the needle insertion, and easy to operate; at the same time, there are guide sleeves 3 of various sizes, so that the corresponding guide sleeves 3 can be installed according to the size of the percutaneous pulmonary puncture needle 200 during the operation, which has good practicality, simple structure and low cost. In the drawings of this embodiment, only one guide sleeve 3 is shown.

[0040] It should be noted that, in one embodiment, the limiting structure 4 is a magnet disposed between the mounting base 2 and the frame 1, and the mounting base 2 is flexibly moved by the magnet, and can be fixed relative to the frame 1 after moving to a preset position. Figure 2 and Figure 3 The frame 1 includes a mounting plate 11, which is provided with a slide groove 11a in an annular shape; the mounting seat 2 is provided with an avoidance groove 2a corresponding to the mounting plate 11, and the avoidance groove 2a is provided for the peripheral edge of the mounting plate 11, so that the mounting seat 2 can move along the circumference of the mounting plate 11, and the avoidance groove 2a is provided with a connecting hole 2b corresponding to the slide groove 11a; the limiting structure 4 includes a limiting nut 41 and a limiting bolt 42, the limiting bolt 42 is passed through the connecting hole 2b and the slide groove 11a, and the limiting nut 41 is screwed on the limiting bolt 42 to press the mounting seat 2 against the mounting plate 11. In this embodiment, the mounting seat 2 is slidably arranged along the circumference of the mounting plate 11 to achieve the adjustment of the needle insertion angle, and the mounting seat 2 can be fixed on the mounting plate 11 through the cooperation of the limiting nut 41 and the limiting bolt 42, and the structure is simple and reliable. It should be noted that the two side walls corresponding to the avoidance groove 2a of the mounting seat 2 have a certain flexibility relative to the bottom wall portion, so that they can be tightly pressed against the mounting plate 11 when the limiting nut 41 is tightened, thereby ensuring the stability of the mounting seat 2 when it is fixed.

[0041] For further information, see Figures 3 to 5The mounting seat 2 is provided with a limiting groove 2c with an opening 2d at one end, and the limiting groove 2c extends along the circumference of the mounting plate 11; the guide sleeve 3 includes an arc-shaped limiting plate 31 and a sleeve 32, one end of the arc-shaped limiting plate 31 is clamped in the limiting groove 2c from the opening 2d, and the other end extends out of the limiting groove 2c, and the sleeve 32 is connected to the end of the arc-shaped limiting plate 31 extending out of the limiting groove 2c, and its axis is located in the plane where the mounting plate 11 is located. In this embodiment, when installing the guide sleeve 3, it is only necessary to insert the arc-shaped limiting plate 31 into the limiting groove 2c, and the operation is simple and convenient. Specifically, the opening 2d is located on the side of the limiting groove 2c away from the body to be punctured. In this way, after the arc-shaped limit plate 31 extends into the limit groove 2c from the opening 2d, when the percutaneous pulmonary puncture needle 200 enters the sleeve 32, the force exerted by the arc-shaped limit plate 31 makes it tend to continue to extend into the limit groove 2c, thereby ensuring the stability of the installation of the sleeve 32.

[0042] Furthermore, the mounting plate 11 is provided with a first scale line 111 along its circumference, and the first scale line 111 is located on one side of the slide groove 11a. In this embodiment, the first scale line 111 is provided at the corresponding slide groove 11a, so that the medical staff can adjust the sliding angle of the mounting seat 2 according to the scale line, thereby improving the puncture accuracy.

[0043] Furthermore, the frame 1 also includes a base 12, a rotating shaft 13 and a connecting plate 14. The rotating shaft 13 is rotatably mounted on the base 12. The connecting plate 14 is connected to the rotating shaft 13 and is connected to the mounting plate 11. The axial direction of the mounting plate 11 intersects with the axial direction of the rotating shaft 13. In this embodiment, a rotating rotating shaft 13 is also correspondingly provided to make the angle adjustment of the mounting seat 2 more flexible and further improve practicality. Specifically, in this embodiment, the axial direction of the rotating shaft 13 is a vertical direction, and the axial direction of the mounting plate 11 is a horizontal direction.

[0044] For further information, see Figure 6 , a transmission gear 131 is provided on the rotating shaft 13, and the frame 1 further includes a driving handle 15, which is rotatably mounted on the base 12, and its axial direction is the same as that of the rotating shaft 13, and is provided with a driving gear 151, which meshes with the transmission gear 131, and its outer diameter is smaller than that of the transmission gear 131. In this way, medical staff can drive the driving handle 15 to rotate, and then drive the rotating shaft 13 to rotate through the driving gear 151 and the transmission gear 131 in turn, so that the angle adjustment of the rotating shaft 13 is more precise, thereby improving the accuracy of puncture.

[0045] Specifically, see Figure 7The frame 1 further includes a protective shell 16, which is covered on the base 12 and has shaft holes 16a corresponding to the driving handle 15 and the rotating shaft 13, respectively. The driving handle 15 and the rotating shaft 13 are respectively penetrated through the corresponding shaft holes 16a, and the transmission gear 131 and the driving gear 151 are located in the protective shell 16, and the mounting plate 11 is located at one end of the rotating shaft 13 extending out of the corresponding shaft hole 16a. In this embodiment, the protective shell 16 is correspondingly provided to protect the driving gear 151 and the transmission gear 131, to prevent foreign matter from interfering with the size, and to improve the transmission stability.

[0046] It should be noted that, in this embodiment, the upper end surface of the protective shell 16 is provided with a second scale line 161, and the second scale line 161 is arranged along the circumference of the rotating shaft 13. Correspondingly, a pointer 133 is provided on the rotating shaft 13, and the pointer 133 rotates with the rotating shaft 13 and indicates its rotation angle.

[0047] Furthermore, the protective shell 16 is also provided with a locking screw hole 16b communicating with its inner cavity, and the locking screw hole 16b extends along the radial direction of the driving handle 15; the frame body 1 also includes a locking bolt 17, which is screwed into the locking screw hole 16b, and one end of which can abut against the outer wall of the driving handle 15 to limit the rotation of the driving handle 15. In this way, after the angle of the rotating shaft 13 is rotated to a preset angle, the locking bolt 17 is tightened to press against the driving handle 15, thereby limiting the rotation of the driving handle 15, avoiding accidental rotation of the rotating shaft 13, and improving the puncture accuracy.

[0048] Furthermore, the rotating shaft 13 is provided with multiple groups of slot structures at intervals along its axial direction, each group of slot structures includes two slots 13a, and the two slots 13a in the same group are respectively located on opposite sides of the rotating shaft 13, and the sides facing each other are open; the connecting plate 14 is provided with two clamping strips 141 at intervals corresponding to the clamping strips 13a, and the two clamping strips 141 can be clamped in any two clamping strips 13a in the same group to limit the axial rotation of the connecting plate 14 along the rotating shaft 13. In this embodiment, the connecting plate 14 can be clamped in the clamping strips 13a of any height, so that the height of the guide sleeve 3 can be adjusted, further improving the practicality, and the operation is simple and the structure is simple.

[0049] It should be noted that, in this embodiment, each clamping strip 141 has a clamping protrusion 142 at one end away from the connecting plate 14 and facing the other clamping strip 141, so as to prevent the clamping strip 141 from accidentally escaping from the clamping groove 13a of the rotating shaft 13 after being clamped in the clamping groove 13a, thereby improving the installation stability of the connecting plate 14 on the rotating shaft 13. A third scale line 132 is provided on the rotating shaft 13 along its axial direction.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A percutaneous pulmonary puncture needle adjustment stand, characterized in that: It includes: Frame; A mounting seat, movably mounted on the frame; A plurality of guide sleeves can be selectively mounted on the mounting seat, each of the guide sleeves having a guide channel for the percutaneous pulmonary puncture needle to pass through, and the axial direction of the guide sleeve can be adjusted following the movement of the mounting seat, wherein the plurality of guide channels can be used for the percutaneous pulmonary puncture needles of different sizes to pass through; and The limiting structure is connected to the frame and the mounting seat, and is used for limiting the movement of the mounting seat relative to the frame when the mounting seat moves to a preset position.

2. The percutaneous pulmonary puncture needle adjustment stand according to claim 1, characterized in that: The frame body comprises a mounting plate, and the mounting plate is provided with a slide groove arranged in an annular shape; The mounting seat is provided with an avoidance groove corresponding to the mounting plate, the avoidance groove is provided for the peripheral edge of the mounting plate to clamp, so that the mounting seat can move along the circumference of the mounting plate, and the avoidance groove is provided with a connecting hole corresponding to the slide groove; The limiting structure includes a limiting nut and a limiting bolt. The limiting bolt is passed through the connecting hole and the sliding groove. The limiting nut is screwed on the limiting bolt so as to press the mounting seat against the mounting plate.

3. The percutaneous pulmonary puncture needle adjustment stand according to claim 2, characterized in that: The mounting seat is provided with a limiting groove with one end being open, and the limiting groove extends along the circumference of the mounting plate; The guide sleeve includes an arc-shaped limit plate and a sleeve. One end of the arc-shaped limit plate is clamped in the limit groove from the opening, and the other end extends out of the limit groove. The sleeve is connected to the end of the arc-shaped limit plate extending out of the limit groove, and its axis is located in the plane where the mounting plate is located.

4. The percutaneous pulmonary puncture needle adjustment stand according to claim 3, characterized in that: The opening is located at a side of the limiting groove away from the object to be punctured.

5. The percutaneous pulmonary puncture needle adjustment stand according to claim 2, characterized in that: The mounting plate is provided with a first scale line along its circumference, and the first scale line is located at one side of the slide groove.

6. The percutaneous pulmonary puncture needle adjustment stand according to claim 2, characterized in that: The frame also includes a base, a rotating shaft and a connecting plate. The rotating shaft is rotatably mounted on the base. The connecting plate is connected to the rotating shaft and is connected to the mounting plate. The axial direction of the mounting plate intersects with the axial direction of the rotating shaft.

7. The percutaneous pulmonary puncture needle adjustment stand according to claim 6, characterized in that: The rotating shaft is provided with a transmission gear, and the frame also includes a driving handle, which is rotatably mounted on the base and has an axial direction that is the same as that of the rotating shaft, and is provided with a driving gear, which is meshed with the transmission gear and has an outer diameter that is smaller than the outer diameter of the transmission gear.

8. The percutaneous pulmonary puncture needle adjustment stand according to claim 7, characterized in that: The frame also includes a protective shell, which is covered on the base and has shaft holes corresponding to the driving handle and the rotating shaft respectively. The driving handle and the rotating shaft are respectively passed through the corresponding shaft holes. The transmission gear and the driving gear are located in the protective shell, and the mounting plate is located at one end of the rotating shaft extending out of the corresponding shaft hole.

9. The percutaneous pulmonary puncture needle adjustment stand according to claim 8, characterized in that: The protective shell is also provided with a locking screw hole communicating with the inner cavity thereof, and the locking screw hole extends in the radial direction of the driving handle; The frame body also includes a locking bolt, which is screwed into the locking screw hole and one end of which can abut against the outer wall of the driving handle to limit the rotation of the driving handle.

10. The percutaneous pulmonary puncture needle adjustment stand according to claim 6, characterized in that: The rotating shaft is provided with a plurality of groups of slot structures at intervals along its axial direction, each group of the slot structures includes two slots, and the two slots in the same group are respectively located on two opposite sides of the rotating shaft, and the sides facing each other are open; The connecting plate is provided with two clamping strips at intervals corresponding to the clamping slots, and the two clamping strips can be clamped in any two clamping slots in the same group to limit the axial rotation of the connecting plate along the rotating shaft.

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