A fixed support for a puncture instrument under an ultrasonic image

Abstract

This utility model discloses a fixation bracket for ultrasound-guided puncture instruments, including a clamp A for securing an existing ultrasound probe and a clamp B for securing an existing puncture needle. A support plate is vertically mounted on the lower back of clamp A, and an extension rod is vertically mounted below the support plate. The extension rod moves along the length of the support plate. Clamp B is fixed to the lower end of the extension rod. When clamp A secures the ultrasound probe and clamp B secures the puncture needle, the ultrasound probe and the puncture needle are on the same vertical plane, the puncture needle is perpendicular to the ultrasound probe, and the distance from the tip of the puncture needle to the extension rod is greater than the distance from the bottom of the ultrasound probe to the extension rod. This fixation bracket helps to fix the angle between the puncture needle and the ultrasound probe, allowing the operator to accurately insert the needle perpendicularly at the center line of the ultrasound probe, thus improving the success rate of puncture.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a fixation bracket for ultrasound-guided puncture instruments. Background Technology

[0002] Ultrasound-guided puncture utilizes ultrasound imaging technology to observe the position and path of the puncture needle in real time, thereby improving the accuracy and safety of the puncture. Ultrasound imaging provides clear images of soft tissue and vascular structures, helping doctors avoid damaging important structures during the puncture process. Ultrasound-guided vascular puncture can significantly reduce complications such as vascular injury and bleeding. Puncture techniques: "Freehand techniques" or needle-guided devices can be used. Freehand techniques are suitable for superficial sites, while needle-guided devices are suitable for deep tissues.

[0003] Ultrasound-guided puncture requires a high level of skill and experience from the operator. The operator must closely monitor the vein's course while inserting the needle perpendicularly at the midline of the ultrasound probe and placing the catheter along the vein's long axis. Currently, there are no devices on the market to help fix the angle between the puncture needle and the ultrasound probe, making it difficult for operators to accurately insert the needle perpendicularly at the midline of the ultrasound probe, easily leading to puncture failure.

[0004] Therefore, how to design a fixation bracket for ultrasound-guided puncture instruments has become an urgent problem to be solved in the field of medical devices. Utility Model Content

[0005] The purpose of this invention is to provide a fixation bracket for puncture instruments under ultrasound imaging, which can help fix the angle between the puncture needle and the ultrasound probe, allowing the operator to accurately insert the needle perpendicularly at the center line of the ultrasound probe, thereby improving the success rate of puncture.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] A fixation bracket for an ultrasound-guided puncture instrument includes a clamp A for clamping an existing ultrasound probe and a clamp B for clamping an existing puncture needle. A support plate is vertically arranged on the lower back of clamp A, and an extension rod is vertically arranged below the support plate. The extension rod moves along the length of the support plate, and clamp B is fixed to the lower end of the extension rod. When clamp A clamps the ultrasound probe and clamp B clamps the puncture needle, the ultrasound probe and the puncture needle are on the same vertical plane, the puncture needle is perpendicular to the ultrasound probe, and the distance from the tip of the puncture needle to the extension rod is greater than the distance from the bottom of the ultrasound probe to the extension rod.

[0008] Compared with existing technologies, the fixation stent for ultrasound-guided puncture instruments using the above-mentioned technical solution has the following advantages:

[0009] This invention utilizes a fixation bracket for ultrasound-guided puncture instruments. An A-clamp secures the ultrasound probe, while a B-clamp secures the puncture needle, ensuring the needle is perpendicular to the midline of the ultrasound probe. An extension rod increases the height difference between clamps A and B, allowing the needle tip to penetrate the blood vessel below the ultrasound probe. This fixation bracket helps maintain the angle between the puncture needle and the ultrasound probe, enabling the operator to accurately insert the needle perpendicularly at the midline of the ultrasound probe, thus improving the success rate of puncture.

[0010] In the preferred embodiment, the support plate and the extension rod are detachably connected, and the operator can replace the B clamps of different specifications on the support plate as needed. The different specifications of the B clamps are used to clamp the corresponding specifications of the puncture needles.

[0011] Preferably, the support plate has a slot, within which a movable slider is positioned. An upper limit block is located above the slider, and a lower limit block is located below it. The outer diameters of both the upper and lower limit blocks are larger than the outer diameter of the slider. The support plate is sandwiched between the upper and lower limit blocks. The upper end of an extension rod is fixed to the lower limit block. The support plate and the extension rod are detachably connected. The slot has an inlet at the end furthest from clamp A, through which the slider is inserted. The upper and lower limit blocks limit the slider's position within the slot, preventing vertical shaking during movement and improving stability.

[0012] Preferably, the device also includes a protective cover to prevent punctures from the support plate. The protective cover is made of silicone and has a groove in which the support plate is inserted. When not in use, the protective cover is placed on the support plate. The protective cover is elastic to prevent punctures from the ends of the support plate.

[0013] Preferably, the extension rod is telescopic and fixed by friction: when the extension rod extends, the distance between the support plate and clamp B increases; when the extension rod shortens, the distance between the support plate and clamp B decreases. The operator can adjust the length of the extension rod as needed.

[0014] Preferably, clamp A has an A-groove and an A-opening. The two side walls of the A-groove each have a slot adapted to the ultrasonic probe. The ultrasonic probe is secured in the two slots on both sides. The A-opening is located on the front of clamp A, and the ultrasonic probe is inserted into the A-groove through the A-opening. Because the existing ultrasonic probe has a convex arc shape on its side, it will not move up or down after being secured in the slot, thus preventing accidental displacement between the ultrasonic probe and clamp A and improving stability.

[0015] Preferably, the device also includes a bolt and a nut. The bolt comprises a handle and a straight rod. Two fixing holes are provided on the two side walls of opening A. The inner diameter of the fixing holes is larger than the outer diameter of the straight rod, and the inner diameter of the fixing holes is smaller than the outer diameter of the handle. The bolt straight rod passes through the two fixing holes and is threadedly connected to the nut, thus clamping clamp A between the bolt handle and the nut. Tightening the bolt and nut tightens opening A, making clamp A more securely hold the ultrasonic probe.

[0016] Preferably, the B clamp has a B clamping groove and a B opening. The inner diameter of the B clamping groove is no larger than the outer diameter of the puncture needle. An anti-slip element made of rubber is provided on the inner wall of the B clamping groove, and the anti-slip element fits tightly against the outer wall of the puncture needle. The inner diameter of the B opening is smaller than the inner diameter of the B clamping groove. The B clamp is C-shaped, and the puncture needle is inserted into the B clamping groove through the B opening. The anti-slip element increases the friction between the B clamping groove and the outer wall of the puncture needle, preventing accidental displacement between the B clamp and the puncture needle, and making the B clamp more secure in securing the puncture needle.

[0017] Preferably, the support plate and clamp A are foldably connected, and an angle adjuster for adjusting the angle of the support plate is provided at the folding connection. The angle adjuster can refer to the backrest angle adjusters in existing patents CN219109056U and CN221490614U. The support plate can be folded upwards to be parallel to the back of clamp A, and can also be folded downwards to be perpendicular to the back of clamp A. The operator can adjust the angle of the support plate as needed and fix the angle using the angle adjuster, suitable for percutaneous radiofrequency ablation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the use of the fixed bracket in Example 1.

[0019] Figure 2 This is a schematic diagram of the fixed bracket in Example 1.

[0020] Figure 3 This is a schematic diagram of the extension tube in Example 1.

[0021] Figure 4 This is a top view of the fixed bracket in Example 1.

[0022] Figure 5 This is a schematic diagram of the structure of the fixing bracket after the protective cover is put on in Example 1.

[0023] Figure 6 This is a schematic diagram of the fixed bracket in Example 2.

[0024] Reference numerals: 1. Clamp A; 10. Clamp A groove; 11. Opening A; 12. Slot; 13. Fixing hole; 14. Bolt; 15. Handle; 16. Straight rod; 17. Nut; 2. Support plate; 21. Slot; 22. Inlet; 3. Clamp B; 30. Clamp B groove; 31. Opening B; 32. Anti-slip component; 4. Extension rod; 40. Slider; 41. Upper limit block; 42. Lower limit block; 43. Protective cover; 5. Angle adjuster; 6. Ultrasonic probe; 61. Puncture needle. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0026] Example 1

[0027] like Figures 1 to 5 The fixation bracket for ultrasound-guided puncture instruments shown includes clamp A 1 and clamp B 3. A support plate 2 is vertically mounted on the lower back of clamp A 1, and an extension rod 4 is vertically mounted below the support plate 2. The extension rod 4 moves along the length of the support plate 2. Clamp B 3 is fixed to the lower end of the extension rod 4. When clamp A 1 clamps the ultrasound probe 6 and clamp B 3 clamps the puncture needle 61, the ultrasound probe 6 and the puncture needle 61 are on the same vertical plane, with the puncture needle 61 perpendicular to the ultrasound probe 6. The distance between the tip of the puncture needle 61 and the extension rod 4 is greater than the distance between the bottom of the ultrasound probe 6 and the extension rod 4. By clamping the ultrasound probe 6 with clamp A 1 and the puncture needle 61 with clamp B 3, the puncture needle 61 is positioned perpendicular to the midline of the ultrasound probe 6. The extension rod 4 increases the height distance between clamp A 1 and clamp B 3, allowing the tip of the puncture needle 61 to pierce the blood vessel below the ultrasound probe 6. The fixing bracket of this utility model can help fix the angle between the puncture needle 61 and the ultrasonic probe 6, so that the operator can accurately insert the needle vertically at the center line of the ultrasonic probe 6, thereby improving the success rate of puncture.

[0028] Reference Figures 2 to 4The support plate 2 has a slot 21, within which a movable slider 40 is positioned. An upper limit block 41 is positioned above the slider 40, and a lower limit block 42 is positioned below it. The outer diameters of both the upper and lower limit blocks 41 and 42 are larger than the outer diameter of the slider 40. The upper limit block 41, slider 40, and lower limit block 42 are connected in an "I" shape. The support plate 2 is sandwiched between the upper limit block 41 and the lower limit block 42. Both the upper and lower surfaces of the support plate 2 are smooth. The upper end of the extension rod 4 is fixed to the lower limit block 42. The support plate 2 and the extension rod 4 are detachably connected. An inlet 22 is provided at the end of the slot 21 furthest from clamp A 1. The slider 40 is inserted into the slot 21 through the inlet 22. The upper limit block 41 and lower limit block 42 limit the slider 40 within the slot 21, preventing it from shaking during movement and improving stability. The support plate 2 and the extension rod 4 are detachably connected. The operator can replace the support plate 2 with different specifications of B clamps 3 as needed. Different specifications of B clamps 3 are used to clamp the corresponding specifications of puncture needles 61.

[0029] The inner diameter of the inlet 22 gradually decreases from the outside to the inside, serving as a transition. This makes it easier for the operator to insert the slider 40 into the slot 21 from the inlet 22.

[0030] The extension rod 4 is telescopic and fixed by friction: when the extension rod 4 extends, the distance between the support plate 2 and clamp 3 increases; when the extension rod 4 shortens, the distance between the support plate 2 and clamp 3 decreases. The operator can adjust the length of the extension rod 4 as needed.

[0031] Reference Figure 2 The clamp 1 (A-clamp 10) has an A-groove 10 and an A-opening 11. The two side walls of the A-groove 10 can elastically deform and be opened by the ultrasonic probe 6. The two side walls of the A-groove 10 each have a slot 12 adapted to the ultrasonic probe 6. The ultrasonic probe 6 is respectively secured in the two slots 12. The A-opening 11 is located on the front of the clamp 1, and the ultrasonic probe 6 is inserted into the A-groove 10 through the A-opening 11. Because the existing ultrasonic probe 6 has a convex arc shape on its side, it will not move up and down after being secured in the slot 12, thus preventing accidental displacement between the ultrasonic probe 6 and the clamp 1 and improving stability.

[0032] This also includes bolt 14 and nut 17. Bolt 14 includes a handle 15 and a straight rod 16. The two side walls of opening A 11 are respectively provided with fixing holes 13. The inner diameter of fixing holes 13 is larger than the outer diameter of the straight rod 16, and the inner diameter of fixing holes 13 is smaller than the outer diameter of the handle 15. Bolt 14 and straight rod 16 pass through the two fixing holes 13 respectively and are threadedly connected to nut 17, so that clamp A 1 is secured between bolt 14, handle 15, and nut 17. Tightening bolt 14 and nut 17 tightens opening A 11, making clamp A 1 more securely secure to the ultrasonic probe 6.

[0033] Reference Figure 3 The B clamp 3 has a B clamping groove 30 and a B opening 31. The two side walls of the B clamping groove 30 can elastically deform and be opened by the puncture needle 61. The inner diameter of the B clamping groove 30 is not greater than the outer diameter of the puncture needle 61. The inner wall of the B clamping groove 30 is provided with an anti-slip element 32, which is made of rubber and fits tightly against the outer wall of the puncture needle 61. The inner diameter of the B opening 31 is smaller than the inner diameter of the B clamping groove 30. The B clamp 3 is C-shaped, and the puncture needle 61 is inserted into the B clamping groove 30 through the B opening 31. The anti-slip element 32 increases the friction between the B clamping groove 30 and the outer wall of the puncture needle 61, preventing accidental displacement between the B clamp 3 and the puncture needle 61, and making the B clamp 3 more secure in clamping the puncture needle 61.

[0034] Reference Figure 5 It also includes a protective cover 43, which is made of silicone and has a groove in which the support plate 2 is inserted. When not in use, the protective cover 43 is put on the support plate 2. The protective cover 43 is elastic to prevent the end of the support plate 2 from being punctured.

[0035] Regarding hospital-acquired infections, the ultrasound probe 6 and the fixation bracket have multiple blind spots for cleaning, making it difficult to ensure thorough cleaning and disinfection. Therefore, the entire fixation bracket and ultrasound probe 6 need to be covered with a sterile bag during use. The sterile bag uses a transparent film to ensure that the internal condition can be seen during operation, while also ensuring the cleanliness and hygiene of the surgical procedure.

[0036] Example 2

[0037] like Figure 6 The fixation bracket for ultrasound-guided puncture instruments shown in this embodiment is based on Embodiment 1. The difference between this embodiment and Embodiment 1 is that:

[0038] The support plate 2 and clamp A 1 are foldably connected. An angle adjuster 5 is provided at the folding connection point to adjust the angle of the support plate 2. The angle adjuster 5 can be referenced from the backrest angle adjusters in existing patents CN219109056U and CN221490614U. The support plate 2 can be flipped upwards to be parallel to the back of clamp A, and can also be flipped downwards to be perpendicular to the back of clamp A. The operator can adjust the angle of the support plate 2 as needed and fix the angle using the angle adjuster 5. This is suitable for percutaneous radiofrequency ablation.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A fixation bracket for an ultrasound-guided puncture instrument, characterized in that: The device includes an A clamp (1) for clamping an existing ultrasound probe (6) and a B clamp (3) for clamping an existing puncture needle (61). A support plate (2) is vertically arranged on the lower back of the A clamp (1). An extension rod (4) is vertically arranged below the support plate (2). The extension rod (4) moves along the length of the support plate (2). The B clamp (3) is fixed to the lower end of the extension rod (4). When the A clamp (1) clamps the ultrasound probe (6) and the B clamp (3) clamps the puncture needle (61), the ultrasound probe (6) and the puncture needle (61) are on the same vertical plane. The puncture needle (61) is perpendicular to the ultrasound probe (6), and the distance between the tip of the puncture needle (61) and the extension rod (4) is greater than the distance between the bottom of the ultrasound probe (6) and the extension rod (4).

2. The fixation bracket for ultrasound-guided puncture instruments according to claim 1, characterized in that: The support plate (2) has a slot (21) on its upper side. A movable slider (40) is provided in the slot (21). An upper limit block (41) is provided on the slider (40), and a lower limit block (42) is provided below the slider (40). The outer diameter of the upper limit block (41) and the outer diameter of the lower limit block (42) are both larger than the outer diameter of the slider (40). The support plate (2) is sandwiched between the upper limit block (41) and the lower limit block (42). The upper end of the extension rod (4) is fixed to the lower limit block (42). The support plate (2) and the extension rod (4) are detachably connected. The slot (21) has an entrance (22) at one end away from clamp A (1). The slider (40) is placed into the slot (21) from the entrance (22).

3. The fixation bracket for ultrasound-guided puncture instruments according to claim 2, characterized in that: It also includes a protective cover (43) to prevent the support plate (2) from being punctured. The protective cover (43) is made of silicone and has a cover groove. The support plate (2) is inserted into the cover groove.

4. The fixation bracket for ultrasound-guided puncture instruments according to claim 1, characterized in that: The extension rod (4) is telescopic and fixed by friction: when the extension rod (4) is extended, the distance between the support plate (2) and the B clamp (3) increases; when the extension rod (4) is shortened, the distance between the support plate (2) and the B clamp (3) decreases.

5. The fixation bracket for ultrasound-guided puncture instruments according to claim 1, characterized in that: The A clamp (1) is provided with an A clamp groove (10) and an A opening (11). The two side walls of the A clamp groove (10) are respectively provided with slots (12) that are adapted to the ultrasonic probe (6). The ultrasonic probe (6) is respectively placed in the two slots (12) on both sides. The A opening (11) is located on the front of the A clamp (1). The ultrasonic probe (6) is inserted into the A clamp groove (10) through the A opening (11).

6. The fixation bracket for ultrasound-guided puncture instruments according to claim 5, characterized in that: It also includes a bolt (14) and a nut (17). The bolt (14) includes a handle (15) and a straight rod (16). The two side walls of the A opening (11) are respectively provided with fixing holes (13). The inner diameter of the fixing hole (13) is larger than the outer diameter of the straight rod (16), and the inner diameter of the fixing hole (13) is smaller than the outer diameter of the handle (15). The bolt (14) and the straight rod (16) pass through the two fixing holes (13) respectively and are threadedly connected to the nut (17), so that the A clamp (1) is clamped between the bolt (14), the handle (15) and the nut (17).

7. The fixation bracket for ultrasound-guided puncture instruments according to claim 1, characterized in that: The B clamp (3) is provided with a B clamp groove (30) and a B opening (31). The inner diameter of the B clamp groove (30) is not greater than the outer diameter of the puncture needle (61). The inner wall of the B clamp groove (30) is provided with an anti-slip part (32). The anti-slip part (32) is made of rubber and fits tightly with the outer wall of the puncture needle (61). The inner diameter of the B opening (31) is smaller than the inner diameter of the B clamp groove (30). The B clamp (3) is "C" shaped. The puncture needle (61) is inserted into the B clamp groove (30) from the B opening (31).

8. The fixation bracket for ultrasound-guided puncture instruments according to claim 1, characterized in that: The support plate (2) and the clamp A (1) are foldably connected, and an angle adjuster (5) for adjusting the angle of the support plate (2) is provided at the folding connection.

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