CT-guided biopsy puncture needle fixing support

Abstract

The utility model discloses a CT (Computed Tomography)-guided biopsy puncture needle fixing support which comprises a circular ring and supporting legs, bending parts are arranged on the middle lower parts of the surfaces of the supporting legs, the supporting legs are arranged on the two sides of the bottom of the circular ring, a puncture needle can penetrate through the inside of the circular ring, and one end, far away from the circular ring, of each supporting leg forms a tilting part through the corresponding bending part. The anti-toppling alcohol cotton ball belongs to the technical field of medical instruments, and aims at solving the problem that in the prior art, the effect of preventing the alcohol cotton ball from toppling is little. The fixing support has the advantages that the two supporting legs and the puncture needle form a tripod, when the puncture needle needs to topple over, the whole fixing support plays a role in stabilizing the puncture needle, it can be guaranteed that the puncture needle cannot topple over, the situation that the stabilizing effect is poor when an alcohol cotton ball is used is avoided, and the fixing support is convenient to use. In addition, the contact area of the supporting legs and the human body is increased through the arranged stabilizing assemblies, and the stability of the fixing support is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a biopsy puncture needle fixing bracket under CT guidance. Background Art

[0002] The CT-guided biopsy needle is a medical device that takes samples from internal tissues of the human body through puncture. In order to achieve accurate sampling, it is usually performed under the guidance of CT. The specific method is that after the puncture needle is inserted into the human body, CT is used to guide the puncture needle to reach the predetermined position.

[0003] The defect of the prior art is that after the puncture needle is inserted, the puncture needle is prone to tipping over due to the arrangement of the structure above the puncture needle. In order to avoid this, our medical staff insert a lot of cotton balls with alcohol on the surface of the puncture needle before the puncture needle is inserted into the human body. After the puncture needle is inserted into the human body, the cotton balls are allowed to contact the human skin to prevent the puncture needle from tipping over. This method of preventing tipping over has little effect and cannot meet the use in most cases.

[0004] In view of this: We propose a CT-guided biopsy needle fixation stent. Utility Model Content

[0005] To this end, the utility model provides a biopsy puncture needle fixing bracket under CT guidance to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] According to the first aspect of the utility model, a CT-guided biopsy puncture needle fixing bracket includes a circular ring and a support leg, a curved portion is provided in the middle and lower part of the surface of the support leg, support legs are provided on both sides of the bottom of the circular ring, the puncture needle can pass through the inside of the circular ring, and a raised portion is formed at one end of the support leg away from the circular ring through the curved portion, and a stabilizing component is provided on the bottom surface of the raised portion.

[0008] Furthermore, two sides of the bottom of the circular ring are fixedly connected to support legs.

[0009] Furthermore, two sides of the bottom of the circular ring are connected to the supporting legs through an adjustment assembly.

[0010] Furthermore, the adjustment assembly includes an annular groove and a ball, the ball is fixedly connected to one end of the support leg away from the bending portion, the annular groove is opened at the bottom of the ring, the ball is located inside the annular groove, and the surface of the ball can slide on the inner wall of the annular groove.

[0011] Furthermore, the stabilizing component includes an anti-skid pad and a protrusion, the protrusion is arranged at the bottom of the anti-skid pad, and the bottom of the anti-skid pad is fixedly connected to the bottom surface of the raised portion.

[0012] Furthermore, the supporting leg includes an upper supporting leg and a lower supporting leg, one end of the lower supporting leg away from the upper supporting leg is fixedly mounted on the bottom of the circular ring, one end of the lower supporting leg away from the upper supporting leg forms a raised portion through a bending portion, and the opposite ends of the upper supporting leg and the lower supporting leg are rotatably connected together through a first connecting assembly.

[0013] Furthermore, the first connecting component includes side panels and a rotating shaft, side panels are fixedly installed on both sides of one end of the lower supporting leg close to the upper supporting leg, a mounting hole is provided in each of the side panels, both ends of the rotating shaft are fixedly installed in a mounting hole respectively, a movable plate is fixedly installed on one end of the upper supporting leg close to the lower supporting leg, and the movable plate is located between the two side panels, a through hole is provided in the movable plate, and the through hole passes through the movable plate, and the rotating shaft is rotatably connected in the through hole.

[0014] Furthermore, the lower supporting leg includes a first supporting rod and a second supporting rod, and the first supporting rod and the second supporting rod are connected together via a second connecting assembly.

[0015] Furthermore, the second connecting component includes a slide groove and a slide rod, the first support rod is provided with a slide groove at one end facing the second support rod, the second support rod is fixedly installed with the slide rod towards one end of the first support rod, and the slide rod is slidably connected in the slide groove, grooves are provided on both sides of one end of the slide rod, a protrusion is slidably connected in the groove, a spring is provided in the groove, and both ends of the spring are fixedly connected to the groove and the protrusion respectively, and a plurality of positioning grooves connected to the slide groove are provided on the first support rod located on both sides of the slide groove, and the protrusion is inserted in a group of positioning grooves.

[0016] The utility model has the following advantages: the two supporting legs and the puncture needle together form a tripod situation, and when the puncture needle wants to fall, the entire fixed bracket stabilizes the puncture needle, thereby ensuring that the puncture needle will not fall, avoiding the situation where the stabilizing effect of using an alcohol cotton ball is poor; in addition, the stabilizing component increases the contact area between the supporting legs and the human body, further increasing the stability of the fixed bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model provides an overall stereogram.

[0018] Figure 2 A three-dimensional diagram of the fixing bracket provided by the utility model.

[0019] Figure 3 This is a bottom view of the circular ring provided by the utility model.

[0020] Figure 4 This is a side sectional view of the circular ring provided by the utility model.

[0021] Figure 5 The figure is a schematic diagram of the supporting leg structure provided by the utility model.

[0022] Figure 6 The utility model provides Figure 5 The structure at point A is enlarged.

[0023] Figure 7 The utility model provides Figure 5 The structure at point B is enlarged.

[0024] Figure 8 This is a schematic diagram of the rotation state of the upper supporting leg and the lower supporting leg provided by the utility model.

[0025] In the figure: 1, ring, 2, supporting leg, 3, puncture needle, 4, annular groove, 5, anti-slip pad, 6, upper supporting leg, 7, lower supporting leg, 71, first supporting rod, 72, second supporting rod, 73, slide groove 74, slide rod, 75, groove, 76, bump, 77, spring, 78, positioning groove, 8, side plate, 9, mounting hole, 10, rotating shaft, 11, movable plate, 12, through hole. DETAILED DESCRIPTION

[0026] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example 1

[0028] like Figures 1 to 4 As shown, a CT-guided biopsy puncture needle fixing bracket in the embodiment of the first aspect of the utility model comprises a circular ring 1 and a support leg 2, a curved portion is provided in the middle and lower part of the surface of the support leg 2, support legs 2 are provided on both sides of the bottom of the circular ring 1, the puncture needle 3 can pass through the inside of the circular ring 1, and one end of the support leg 2 away from the circular ring 1 forms a warping portion through the curved portion, and a stabilizing component is provided on the bottom surface of the warping portion;

[0029] In the above embodiment, it should be noted that the two supporting legs 2 and the puncture needle 3 together form a tripod, thereby ensuring the stability of the ring 1. The stability of the ring 1 can ensure that the puncture needle 3 will not fall. In addition, the stabilizing component increases the contact area between the supporting leg 2 and the human body, further increasing the stability of the fixed bracket.

[0030] Example 2

[0031] like Figures 1 to 4 As shown, a CT-guided biopsy puncture needle fixing bracket includes all the contents of Example 1, and in addition, the two sides of the bottom of the ring 1 are fixedly connected to the supporting legs 2;

[0032] In the above embodiment, it should be noted that the two support legs 2 are fixedly connected to the two sides of the bottom of the ring 1 , and the two support legs 2 are at a fixed angle, which is suitable for most patients to use when using the puncture needle 3 .

[0033] Example 3

[0034] like Figures 1 to 3 As shown, a CT-guided biopsy puncture needle fixing bracket includes all the contents of Example 1, and in addition, the two sides of the bottom of the ring 1 are connected to the supporting legs 2 through an adjustment component;

[0035] In the above embodiment, it should be noted that the angle between the two supporting legs 2 can be adjusted by adjusting the assembly, thereby increasing the application range of the fixing bracket.

[0036] Example 4

[0037] like Figures 1 to 3 As shown, a CT-guided biopsy puncture needle fixing bracket includes all the contents of Example 3, and in addition, the adjustment component includes an annular groove 4 and a ball, the ball is fixedly connected to one end of the support leg away from the bending part, the annular groove 4 is opened at the bottom of the ring 1, the ball is located inside the annular groove 4, and the surface of the ball can slide on the inner wall of the annular groove 4;

[0038] In the above embodiment, it should be noted that the surface of the sphere and the inner wall of the annular groove 4 are interference fit when sliding, that is to say, the two supporting legs 2 can be moved even under a certain external force, so that the angle between the two legs can be adjusted, and the application range of the fixed bracket is larger.

[0039] Example 5

[0040] like Figures 2 to 3 As shown, a CT-guided biopsy puncture needle fixing bracket includes all the contents of Example 1. In addition, the stabilizing component includes an anti-skid pad 5 and a convex point. The convex point is set at the bottom of the anti-skid pad 5, and the bottom of the anti-skid pad 5 is fixedly connected to the bottom surface of the raised portion;

[0041] In the above embodiment, it should be noted that the convex points at the bottom of the anti-slip pad 5 are prevented from contacting the human body, thereby increasing the contact area between the curved portion and the human body and increasing the stability of the fixed bracket.

[0042] Example 6

[0043] like Figures 5 to 7 As shown, a CT-guided biopsy puncture needle fixing bracket includes all the contents of Example 1, and in addition, the support leg 2 includes an upper support leg 6 and a lower support leg 7, one end of the lower support leg 7 away from the upper support leg 6 is fixedly mounted on the bottom of the ring 1, one end of the lower support leg 7 away from the upper support leg 6 forms a raised portion through a bent portion, and the opposite ends of the upper support leg 6 and the lower support leg 7 are rotatably connected together through a first connecting component;

[0044] In the above embodiment, it should be noted that the angle between the upper supporting leg 6 and the lower supporting leg 7 can be adjusted through the first connecting component, so that the upper supporting leg 6 can drive the ring 1 to rotate, so that the inclination angle of the ring 1 can be adjusted accordingly according to the inclination angle of the puncture needle 3, thereby improving practicality.

[0045] Example 7

[0046] like Figures 5 to 7 As shown, a CT-guided biopsy puncture needle fixing bracket includes all the contents of Example 6. In addition, the first connecting component includes side panels 8 and a rotating shaft 10. The side panels 8 are fixedly installed on both sides of the end of the lower supporting leg 7 close to the upper supporting leg 6. A mounting hole 9 is provided in each of the side panels 8. The two ends of the rotating shaft 10 are respectively fixedly installed in a mounting hole 9. The end of the upper supporting leg 6 close to the lower supporting leg 7 is fixedly installed with a movable plate 11, and the movable plate 11 is located between the two side panels 8. A through hole 12 is provided in the movable plate 11, and the through hole 12 passes through the movable plate 11, and the rotating shaft 10 is rotatably connected in the through hole 12.

[0047] In the above embodiment, it should be noted that the rotating shaft 10 is interference fit when rotating in the through hole 12 , that is, a certain external force is required to make the rotating shaft 10 rotate to avoid the rotating shaft 10 from rotating on its own.

[0048] Example 8

[0049] like Figures 5 to 7 As shown, a CT-guided biopsy puncture needle fixing bracket includes all the contents of Example 6. In addition, the lower support leg 7 includes a first support rod 71 and a second support rod 72, and the first support rod 71 and the second support rod 72 are connected together by a second connecting assembly.

[0050] In the above embodiment, it should be noted that the first support rod 71 and the second support rod 72 are connected together by the second connecting assembly, so that the length of the lower support leg 7 can be adjusted to adjust the support height of the puncture needle 3.

[0051] Example 9

[0052] like Figures 5 to 7 As shown, a CT-guided biopsy puncture needle fixing bracket includes all the contents of Example 6. In addition, the second connecting component includes a slide groove 73 and a slide rod 74. The first support rod 71 is provided with a slide groove 73 at one end facing the second support rod 72. The second support rod 72 is fixedly installed with a slide rod 74 at one end facing the first support rod 71, and the slide rod 74 is slidably connected in the slide groove 73. Grooves 75 are provided on both sides of one end of the slide rod 74. A protrusion 76 is slidably connected in the groove 75. A spring 77 is provided in the groove 75, and the two ends of the spring 77 are fixedly connected to the groove 75 and the protrusion 76 respectively. A plurality of positioning grooves 78 (arranged in an I shape) connected to the slide groove 73 are provided on the first support rod 71 located on both sides of the slide groove 73, and the protrusion 76 is inserted in a group of positioning grooves 78.

[0053] In the above embodiment, it should be noted that the cross-sectional shape of the slide groove 73 and the slide rod 74 is set to be square to prevent the slide rod 74 from rotating in the slide groove 73; the shape of the protrusion 76 is set to be spherical to facilitate the retraction of the protrusion 76 into the groove 75; when it is necessary to adjust the length of the lower support leg 7, force is applied to make the slide rod 74 slide in the slide groove 73. During this process, the protrusion 76 will be squeezed under the action of the positioning groove 78 to move the protrusion 76 into the groove 75. At this time, the spring 77 will be deformed, and when the protrusion 76 is located at the adjacent positioning groove 78, the protrusion 76 will be inserted into the positioning groove 78 under the action of the spring 77, and this cycle will be repeated until the lower support leg 7 is at an appropriate length.

[0054] Working principle: When in use, first install the anti-slip pad 5 at the bottom of the supporting leg 2, let the puncture needle 3 pass through the inside of the ring 1, let the bottom of the puncture needle 3 extend to the bottom of the ring 1, and then use the puncture needle 3 to pierce the patient's skin tissue and enter the patient's body. After the puncture is in place, adjust the position of the fixed bracket to prevent the puncture needle 3 from tipping over.

Claims

1. A CT-guided biopsy puncture needle fixing bracket, characterized in that: The invention comprises a circular ring (1) and a supporting leg (2), wherein a curved portion is arranged at the middle and lower part of the surface of the supporting leg (2), and the supporting legs (2) are arranged at both sides of the bottom of the circular ring (1), so that the puncture needle (3) can pass through the inside of the circular ring (1), and an end of the supporting leg (2) away from the circular ring (1) forms a raised portion through the curved portion, and a stabilizing component is arranged on the bottom surface of the raised portion; the supporting leg (2) comprises an upper supporting leg (6) and a lower supporting leg (7), and the opposite ends of the upper supporting leg (6) and the lower supporting leg (7) are rotatably connected together through a first connecting component, and the lower supporting leg (7) comprises a first supporting rod (71) and a second supporting rod (72), and the first supporting rod (71) and the second supporting rod (72) are connected together through a second connecting component.

2. The CT-guided biopsy needle fixing bracket according to claim 1, characterized in that: The two sides of the bottom of the circular ring (1) are fixedly connected to the supporting legs (2).

3. The CT-guided biopsy needle fixing bracket according to claim 1, characterized in that: Both sides of the bottom of the circular ring (1) are connected to the supporting legs (2) via an adjustment assembly.

4. The CT-guided biopsy needle fixing bracket according to claim 3, characterized in that: The adjustment assembly comprises an annular groove (4) and a sphere, wherein the sphere is fixedly connected to one end of the support leg away from the curved portion, the annular groove (4) is formed at the bottom of the circular ring (1), the sphere is located inside the annular groove (4), and the surface of the sphere is capable of sliding on the inner wall of the annular groove (4).

5. The CT-guided biopsy puncture needle fixing bracket according to claim 1, characterized in that: The stabilizing component comprises an anti-skid pad (5) and a convex point, the bottom of the anti-skid pad (5) is provided with the convex point, and the bottom of the anti-skid pad (5) is fixedly connected to the bottom surface of the raised portion.

6. The CT-guided biopsy puncture needle fixing bracket according to claim 2, characterized in that: One end of the lower supporting leg (7) away from the upper supporting leg (6) is fixedly mounted on the bottom of the circular ring (1), and one end of the lower supporting leg (7) away from the upper supporting leg (6) forms a raised portion through a bent portion.

7. The CT-guided biopsy puncture needle fixing bracket according to claim 6, characterized in that: The first connecting component comprises a side plate (8) and a rotating shaft (10); the side plates (8) are fixedly mounted on both sides of one end of the lower supporting leg (7) close to the upper supporting leg (6); a mounting hole (9) is provided in each of the side plates (8); the two ends of the rotating shaft (10) are respectively fixedly mounted in one mounting hole (9); the movable plate (11) is fixedly mounted on one end of the upper supporting leg (6) close to the lower supporting leg (7); the movable plate (11) is located between the two side plates (8); a through hole (12) is provided in the movable plate (11); and the through hole (12) passes through the movable plate (11); and the rotating shaft (10) is rotatably connected in the through hole (12).

8. The CT-guided biopsy puncture needle fixing bracket according to claim 6, characterized in that: The second connecting component comprises a slide groove (73) and a slide rod (74); a slide groove (73) is provided on one end of the first support rod (71) facing the second support rod (72); a slide rod (74) is fixedly installed on one end of the second support rod (72) facing the first support rod (71), and the slide rod (74) is slidably connected in the slide groove (73); grooves (75) are provided on both sides of one end of the slide rod (74); a convex block (76) is slidably connected in the groove (75); a spring (77) is provided in the groove (75), and two ends of the spring (77) are fixedly connected to the groove (75) and the convex block (76) respectively; a plurality of positioning grooves (78) connected to the slide groove (73) are provided on the first support rod (71) located on both sides of the slide groove (73), and the convex block (76) is inserted into a group of positioning grooves (78).

Images