Ultrasonic puncture needle positioning transmitting device

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to an ultrasonic puncture needle positioning transmitting device. The device comprises a fixing ring with a broken right side wall, a fastening mechanism is mounted on the right side wall of the fixing ring, a mounting block is arranged on the left side of the fixing ring, a fixing groove without an upper groove wall is formed in the left side wall of the mounting block, a needle guide block is detachably mounted in the fixing groove, and a vertically-through through hole is formed in the lower groove wall of the fixing groove. The left side wall of the needle guide block is an arc-shaped surface, a guide hole communicated with the through hole and used for limiting the angle of the puncture needle is formed in the arc-shaped surface, mounting plates are fixed to the left side wall and the front side wall of the fixing ring, and a sliding rod used for changing the position of the mounting block is fixed between the two mounting plates; and retention assemblies for fixing the positions of the mounting blocks after sliding are fixed on the two mounting plates. According to the utility model, a medical worker can quickly adapt to an in-plane or out-of-plane puncture method after successful scanning, and scanning does not need to be carried out again after a fixing ring is sleeved.

Description

Technical Field

[0001] The utility model belongs to the field of medical equipment, and in particular relates to an ultrasonic puncture needle positioning and transmitting device. Background Art

[0002] Ultrasonic interventional technology, as a branch of modern ultrasound medicine, was formally defined at the World Interventional Ultrasound Conference held in Copenhagen in 1983. It is a new technology developed on the basis of ultrasound imaging to further meet the needs of clinical diagnosis and treatment. Its main feature is that various puncture biopsies, X-ray angiography, aspiration, intubation, injection treatment and other operations can be completed under the monitoring or guidance of ultrasound during implementation, which can avoid certain surgical operations and achieve the same effect as surgical operations. In order to further meet the needs of clinical diagnosis and treatment, by putting a puncture needle positioning and transmitting device on the ultrasound probe, the puncture needle can be guided to the target position of the human body under ultrasound guidance to achieve cytological biopsy, histological biopsy, cyst aspiration and treatment, etc. Among them, the puncture needle positioning and transmitting device, also known as the ultrasound probe puncture frame, or puncture guide frame, mainly includes two types: reusable puncture frames made of metal or plastic, and disposable puncture frames.

[0003] At present, ultrasound-guided in-plane puncture technology (the needle is inserted along the long axis of the probe, and the puncture needle is performed as a whole within the sound beam emitted by the ultrasound) and ultrasound-guided out-of-plane puncture technology (the needle is inserted along the short axis of the probe, and the puncture needle is performed as a whole or partially outside the sound beam emitted by the ultrasound) are the two most widely used technologies. Correspondingly, there are also two types of puncture needle positioning and transmitting devices. In actual applications, when scanning with an ultrasound probe, short-axis scanning or long-axis scanning is required according to the actual situation of the patient, and then a suitable puncture needle positioning and transmitting device is put on. However, this requires re-scanning after the puncture needle positioning and transmitting device is put on, and the puncture operation cannot be performed directly after a successful scan. Therefore, it not only wastes a certain amount of time, but also places higher requirements on the scanning technology of medical staff. Utility Model Content

[0004] The utility model aims to provide an ultrasonic puncture needle positioning and emitting device, which can quickly perform puncture after successful scanning.

[0005] The ultrasonic puncture needle positioning and transmitting device comprises a fixing ring with a broken right side wall, and a fastening mechanism for fixing the fixing ring on the ultrasonic probe is installed on the right side wall of the fixing ring, and a mounting block is arranged on the left side of the fixing ring, and a fixing groove without an upper groove wall is provided on the left side wall of the mounting block, and a needle guide block is detachably installed in the fixing groove, and a through hole communicating with each other from top to bottom is provided on the lower groove wall of the fixing groove, and the left side wall of the needle guide block is an arc-shaped surface, and a guide hole communicating with the through hole and used to limit the angle of the puncture needle is provided on the arc-shaped surface, and mounting plates are fixed to the left side wall and the front side wall of the fixing ring, and a sliding rod for changing the position of the mounting block is fixed between the two mounting plates, and a retaining component for fixing the position of the mounting block after sliding is fixed on the two mounting plates.

[0006] Furthermore, the fastening mechanism includes a connecting plate and a fixing block fixed on the right side wall of the fixing ring, the connecting plate and the fixing block are respectively located at the front and rear sides of the disconnection point of the right side wall of the fixing ring, two elastic plug-in plates are fixed to the rear side wall of the connecting plate, and a certain gap is left between the two plug-in plates, a front side wall of the fixing block is provided with a slot for inserting the two plug-in plates, arc blocks are fixed on the back surfaces of the rear ends of the two plug-in plates, and a groove for clamping the corresponding arc blocks is provided on the groove wall of the slot.

[0007] Furthermore, the plug boards are distributed up and down, and the arc blocks are respectively located at the top of the upper plug board and the bottom of the lower plug board.

[0008] Furthermore, the front side wall and the rear side wall of the fixing groove are provided with installation grooves, and a plurality of elastic clamping plates are fixed to the bottom of the two installation grooves. A plurality of connecting plates in the same installation groove are distributed up and down, and corresponding to each clamping plate, the front side wall and the rear side wall of the needle guide block are provided with a clamping groove for clamping the corresponding clamping plate.

[0009] Furthermore, the angle between the axis of the guide hole and the horizontal plane is 20°-90°.

[0010] Furthermore, there are two slide bars distributed up and down, one end of each of the two slide bars is fixed to a mounting plate fixed on the front side wall of the fixing ring, and the other end of each of the two slide bars is fixed to a mounting plate fixed on the left side wall of the fixing ring.

[0011] Furthermore, the retaining component is a limiting plate fixed on the side wall of the mounting plate, and a limiting protrusion is fixed on the bottom of the limiting plate. When the mounting block is attached to one of the mounting plates, the limiting protrusion on the limiting plate at the top of the mounting plate is just stuck in the fixing groove of the mounting block.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model can guide the puncture needle for stable puncture and select a suitable puncture angle according to the patient's condition by inserting a needle guide block with different guide hole angles into the fixed groove. Moreover, compared with the traditional puncture needle positioning and launching device with variable angles, the selectable angle range is wider, the applicable indications are more, and the angle is more precise. The mounting block can slide freely along the slide rod so that the position of the mounting block can be freely switched at the front and left sides of the fixing ring, so as to achieve the purpose of quickly adapting to the in-plane or out-of-plane puncture after the medical staff has successfully scanned, without the need to re-scan after the fixing ring is put on. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 Right side view;

[0016] Figure 3 for Figure 1 The enlarged view of point A in the middle;

[0017] Figure 4 for Figure 1 A top view of

[0018] Figure 5 It is a schematic diagram of the cooperation between the mounting block, the needle guide block and the clamping plate;

[0019] The names of the components in the figure are: 1. connecting plate; 2. fixing block; 3. fixing ring; 4. mounting plate; 5. limiting plate; 6. sliding rod; 7. arc block; 8. plug-in plate; 9. mounting block; 10. needle guide block; 11. clamping plate. DETAILED DESCRIPTION

[0020] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0021] Example 1

[0022] The ultrasonic puncture needle positioning and transmitting device described in this embodiment includes a fixing ring 3 whose right side wall is disconnected, Figure 1 , Figure 2 and Figure 4The right side wall of the fixing ring 3 is fixed with a connecting plate 1 and a fixing block 2, which are respectively located at the front and rear sides of the disconnection of the right side wall of the fixing ring 3. Two elastic plug-ins 8 are fixed to the rear side wall of the connecting plate 1, and a certain gap is left between the two plug-ins 8. A slot for inserting the two plug-ins 8 is provided on the front side wall of the fixing block 2. The two plug-ins 8 are fixed with arc blocks 7 on the back surfaces of the rear ends, and a groove for clamping the corresponding arc blocks 7 is provided on the groove wall of the slot (the connecting plate 1, the fixing block 2, the two plug-ins in this paragraph The block plug plate 8 and the arc block 7 constitute the fastening mechanism for fixing the fixing ring 3 on the ultrasonic probe. In practical application, a limit rod can also be fixed on the rear side wall of the connecting plate 1, and a plurality of protrusions can be fixed on the limit rod in sequence from front to back. At the same time, a through groove communicating front to back is provided on the front side wall of the fixing block 2, and a limit groove for clamping the protrusion is provided on the groove wall of the through groove. In this embodiment, the fixing ring 3 is tightly sleeved on the ultrasonic probe by inserting the two plug plates 8 into the slots and clamping the arc block 7 in the corresponding grooves.

[0023] like Figure 2 As shown, the two plug boards 8 are distributed up and down, and the arc blocks 7 are respectively located at the top of the upper plug board 8 and the bottom of the lower plug board 8;

[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a mounting block 9 is provided on the left side of the fixing ring 3, and a fixing groove without an upper groove wall is provided on the left side wall of the mounting block 9, and a needle guide block 10 is detachably installed in the fixing groove, wherein the front side wall and the rear side wall of the fixing groove are provided with mounting grooves, and a plurality of elastic clamping plates 11 are fixed to the bottom of the two mounting grooves, and a plurality of connecting plates 1 in the same mounting groove are distributed up and down, and corresponding to each clamping plate 11, a clamping groove for clamping the corresponding clamping plate 11 is provided on the front side wall and the rear side wall of the needle guide block 10, so that the needle guide block 10 can be installed by pressing the needle guide block 10 downward into the fixing groove and clamping the clamping plate 11 in the corresponding clamping groove;

[0025] The lower groove wall of the fixed groove is provided with a through hole communicating with each other from top to bottom. The left side wall of the needle guide block 10 is an arc surface, and a guide hole communicating with the through hole and used to limit the angle of the puncture needle is provided on the arc surface, wherein the angle between the axis of the guide hole and the horizontal plane is 20°-90°. Figure 1 As shown, this embodiment can guide the puncture needle to perform stable puncture by inserting a needle guide block 10 with different guide hole angles into the fixed groove, and can select a suitable puncture angle according to the patient's condition. Moreover, compared with the traditional puncture needle positioning and launching device with variable angles, the selectable angle range is wider, the applicable diseases are more, and the angle is more accurate.

[0026] The left side wall and the front side wall of the fixing ring 3 are both fixed with mounting plates 4, and a slide bar 6 for changing the position of the mounting block 9 is fixed between the two mounting plates 4. Figure 1 and Figure 4 As shown, there are two slide bars 6 and they are distributed up and down, one end of the two slide bars 6 is fixed to the mounting plate 4 fixed on the front side wall of the fixing ring 3, and the other end is fixed to the mounting plate 4 fixed on the left side wall of the fixing ring 3. In this embodiment, the mounting block 9 slides freely along the slide bar 6, so that the position of the mounting block 9 can be freely switched between the front side and the left side of the fixing ring 3, so as to achieve the purpose of quickly adapting to the puncture in the plane or out of the plane after the medical staff successfully scans, without the need to re-scan after the fixing ring 3 is put on; wherein, when the mounting block 9 is in contact with the mounting plate 4 on the left side wall of the fixing ring 3, the straight line where the axis of the guide hole is located should intersect with the vertical center line of the left side wall of the fixing ring 3 (parallel at 90°), and similarly, when the mounting block 9 is in contact with the mounting plate 4 on the front side wall of the fixing ring 3, the straight line where the axis of the guide hole is located should intersect with the vertical center line of the front side wall of the fixing ring 3 (parallel at 90°);

[0027] Limiting plates 5 are fixed on the side walls where the two mounting plates 4 are in contact with the mounting block 9, and a limiting protrusion is fixed on the bottom of the limiting plate 5. When the mounting block 9 is in contact with one of the mounting plates 4, the limiting protrusion on the limiting plate 5 on the top of the mounting plate 4 is just stuck in the fixing groove of the mounting block 9 (the limiting plate 5 and the limiting protrusion in this paragraph constitute the fixing component for fixing the position of the mounting block 9 after sliding, and can also be a magnet block in actual application, and the side wall of the mounting block 9 is inlaid with an iron block or an iron plate).

[0028] When this embodiment is used, first put the fixing ring 3 on the ultrasonic probe, then pinch the connecting plate 1 and the fixing block 2 to insert the two plug plates 8 into the slots, and make the arc block 7 stuck in the corresponding groove, then use the ultrasonic probe to scan, and after the scanning is successful, slide the mounting block 9 and the corresponding mounting plate 4 according to the puncture technology to be used (when puncturing in the plane, the mounting block 9 is in contact with the mounting plate 4 on the left side wall of the fixing ring 3; when puncturing outside the plane, the mounting block 9 is in contact with the mounting plate 4 on the front side wall of the fixing ring 3), and finally insert the needle guide block 10 with a suitable angle of the guide hole into the fixing groove of the mounting block 9. At this time, the puncture needle can be passed through the guide hole for sampling or treatment.

Claims

1. An ultrasonic puncture needle positioning and transmitting device, comprising a fixing ring (3) with a disconnected right side wall, the right side wall of the fixing ring (3) being provided with a fastening mechanism for fixing the fixing ring (3) on an ultrasonic probe, characterized in that: A mounting block (9) is arranged on the left side of the fixing ring (3), a fixing groove without an upper groove wall is provided on the left side wall of the mounting block (9), a needle guide block (10) is detachably installed in the fixing groove, a through hole communicating with each other from top to bottom is provided on the lower groove wall of the fixing groove, the left side wall of the needle guide block (10) is an arc surface, a guide hole communicating with the through hole and used for limiting the angle of the puncture needle is provided on the arc surface, mounting plates (4) are fixed on the left side wall and the front side wall of the fixing ring (3), a sliding rod (6) for changing the position of the mounting block (9) is fixed between the two mounting plates (4), and a retaining assembly for fixing the position of the mounting block (9) after sliding is fixed on the two mounting plates (4).

2. The ultrasonic puncture needle positioning and transmitting device according to claim 1, characterized in that: The fastening mechanism comprises a connecting plate (1) and a fixing block (2) fixed on the right side wall of the fixing ring (3); the connecting plate (1) and the fixing block (2) are respectively located at the front side and the rear side of the disconnected portion of the right side wall of the fixing ring (3); two elastic plug-in plates (8) are fixed on the rear side wall of the connecting plate (1), and a certain gap is left between the two plug-in plates (8); a slot for inserting the two plug-in plates (8) is provided on the front side wall of the fixing block (2); arc blocks (7) are fixed on the back surfaces of the rear ends of the two plug-in plates (8); and a groove for clamping the corresponding arc blocks (7) is provided on the groove wall of the slot.

3. The ultrasonic puncture needle positioning and transmitting device according to claim 2, characterized in that: The plug boards (8) are distributed up and down, and the arc blocks (7) are respectively located at the top of the upper plug board (8) and the bottom of the lower plug board (8).

4. The ultrasonic puncture needle positioning and transmitting device according to claim 1, characterized in that: The front side wall and the rear side wall of the fixing groove are both provided with mounting grooves, and a plurality of elastic clamping plates (11) are fixed to the bottom of the two mounting grooves. A plurality of connecting plates (1) in the same mounting groove are distributed up and down, and corresponding to each clamping plate (11), the front side wall and the rear side wall of the needle guide block (10) are both provided with clamping grooves for clamping the corresponding clamping plate (11).

5. The ultrasonic puncture needle positioning and transmitting device according to claim 2, characterized in that: The included angle between the axis of the guide hole and the horizontal plane is 20°-90°.

6. The ultrasonic puncture needle positioning and transmitting device according to claim 3 or 5, characterized in that: There are two slide bars (6) distributed up and down, one end of each of the two slide bars (6) is fixed to a mounting plate (4) fixed on the front side wall of the fixing ring (3), and the other end of each of the two slide bars (6) is fixed to a mounting plate (4) fixed on the left side wall of the fixing ring (3).

7. The ultrasonic puncture needle positioning and transmitting device according to claim 6, characterized in that: The retaining component is a limiting plate (5) fixed on the side wall of the mounting plate (4), and a limiting protrusion is fixed on the bottom of the limiting plate (5). When the mounting block (9) is attached to one of the mounting plates (4), the limiting protrusion on the limiting plate (5) at the top of the mounting plate (4) is just stuck in the fixing groove of the mounting block (9).

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