CN219089553U - Accurate positioning ultrasonic guiding puncture support - Google Patents

Abstract

The utility model relates to the technical field of ultrasound-guided puncture tools, in particular to an accurately positioned ultrasound-guided puncture bracket. The utility model comprises an angle adjustment pole, a first telescopic pole, a second telescopic pole, a telescopic bracket, a sleeve, an adjustment lock nut, a spring, a support gear, a fixed seat, a puncture frame and a puncture frame fixing device. The puncture bracket has multi-degree-of-freedom adjustments. The height and angle of the ultrasonic probe have coarse adjustment and fine adjustment methods. There are two ways of coarse adjustment and fine adjustment for the height position of the second telescopic strut. The angular position is roughly adjusted by the meshing teeth, the angular position is finely adjusted by the universal joint, and the length of the transverse arm is adjusted by the first telescopic strut and the second telescopic strut. Even if the patient moves the body, the pressing position of the ultrasonic probe will not change, and the positioning position will not be lost easily. After the ultrasound probe is fixed, it is no longer necessary for the doctor to hold and press the probe all the time, saving manpower.

Description

An Accurately Positioned Ultrasound-Guided Puncture Stent

technical field

The utility model relates to the technical field of ultrasound-guided puncture tools, in particular to an accurately positioned ultrasound-guided puncture bracket.

Background technique

Ultrasound-guided puncture and biopsy belong to interventional ultrasound, which is a method of puncturing living tissue under the guidance of real-time monitoring of ultrasound equipment to obtain cells and pathological diagnosis. It has been carried out as early as the 1970s. The purpose of puncture is: ①Puncture and aspiration for cytological examination. ②Histological examination of needle biopsy. ③Others: radiography, catheter drainage, etc.

The current puncture frame is fixed on the ultrasonic probe. After the doctor finds the position to be punctured, another doctor needs to press the patient's position by holding the probe from beginning to end, and then another doctor operates the puncture needle. Then, since the patient will inevitably move the body, and it is difficult to keep the position of the probe fixed by hand for a long time, based on the above two unstable factors, it is easy to cause the problem of inaccurate puncture position, and at least two doctors are required.

Utility model content

Aiming at the above-mentioned shortcomings of the prior art, the utility model provides an accurately positioned ultrasound-guided puncture support, which solves the problems of inaccurate positioning of the doctor's hand-held pressing probe, separation of the relative position of the probe from the patient, and waste of manpower.

The utility model proposes the following technical solutions:

An accurately positioned ultrasound-guided puncture support, comprising an angle-adjusting support rod, a first telescopic support rod, a second telescopic support rod, a telescopic support, a sleeve, an adjustment locking nut, a spring, a support gear, a fixing seat, and a puncture frame and puncture bracket fixation device.

The puncture frame is fixedly connected to the left end of the adjusting rod; the right end of the adjusting rod is movably connected to the left end of the first telescopic rod through a universal joint, and is locked by a universal joint locking bolt; the second The second telescopic strut body at the left end of the second telescopic strut is movably inserted into the right end of the first telescopic strut, and locked by the first locking bolt.

The telescopic bracket is sequentially provided with the adjusting lock nut, the spring, the second telescopic pole, and the supporting gear from top to bottom; the telescopic bracket is telescopically connected to the upper end of the sleeve; The lower end of the sleeve is fixedly connected with the fixing seat through threads.

The telescopic support includes an upper support and a lower support. A shaft shoulder is formed between the upper support and the lower support. The upper section of the upper support is an external thread section, and the lower section of the upper support is a polished rod; the right end of the second telescopic support rod is sleeved on the There is a gap between the two on the polished rod of the telescopic bracket, so that the second telescopic rod can slide up and down along the telescopic bracket; the external thread section of the telescopic bracket is threadedly connected to the adjustment lock nut ; The lower end of the polished rod is provided with the support gear, and the two are connected by interference fit or key connection, and the lower end surface of the support gear is attached to the shoulder to prevent the support gear from rotating; The lower bracket is movably inserted into the upper end of the sleeve and locked by the second locking bolt.

The fixing seat is fixed on the patient or the hospital bed by the puncture bracket fixing device.

Optionally, the second telescopic strut includes a second telescopic strut body, a sleeve and a guide arc from left to right; the left end of the second telescopic strut body is inserted into the first telescopic strut, and its right end is integrally provided with As for the sleeve, the center of the sleeve is provided with a hole connected to the telescopic bracket, and the lower end surface of the rightmost end of the sleeve is provided with a guide arc concentric with the sleeve, and the guide arc is The inner surfaces are provided with tooth shapes.

Optionally, a round hole is provided in the center of the supporting gear, and is fixedly connected to the polished rod through the round hole. The outer wall of the supporting gear is evenly provided with sawtooth, and the sawtooth and the tooth shape can be slid up and down for insertion. engagement.

Optionally, the puncture frame includes a puncture frame body, a flange, a puncture needle base, and a puncture frame fixing seat; the puncture frame body is roughly elliptical, and its interior is hollow, and the hollow shape is suitable for the ultrasonic probe Matching; one end of the puncture frame body is provided with an opening, and the openings are respectively integrally provided with the flanges, and the two flanges are provided with bolt holes, and the ultrasonic probe is fixed on the puncture frame body through bolts; The other end of the puncture frame body is fixedly or angle-adjustably provided with the puncture needle base, and the inside of the puncture needle base is provided with a puncture needle hole; the middle part of the right end of the puncture frame body is integrated or welded. The puncture frame holder described above.

Optionally, the left end of the angle-adjusting pole is integrally or welded with a piercing frame connecting block, and the piercing frame connecting block is fixedly connected to the piercing frame fixing seat through buckles or bolts; the angle-adjusting pole’s The right end is fixedly provided with universal ball.

Optionally, the left end of the first telescopic support rod is fixedly provided with a universal ball seat, the left end of the universal ball seat is open, and an inner cavity for accommodating the universal ball is provided inside, and the universal ball seat is A threaded hole is arranged axially through the ball seat, and the universal joint locking bolt passes through the threaded hole to lock the angle adjustment rod.

Optionally, the universal joint locking bolt includes a handle and a threaded rod, one end of the threaded rod is a concave hemispherical surface, the curvature of the hemispherical surface matches the curvature of the universal ball, and The hemispherical surface is fixedly provided with a high friction layer.

Optionally, the lower end surface of the fixing seat is fixedly provided with a cushion, and the left and right sides are provided with fixed clamping devices, the fixed clamping device is clamped with the puncture bracket fixing device, and the puncture bracket fixing device The clamping ends are respectively clamped with the fixed clamping devices.

Optionally, the puncture bracket fixing device is a waist belt, and the waist belt has a belt buckle.

Optionally, the puncture support fixing device is two arc-shaped elastic snap rings.

Optionally, the puncture bracket fixing device is a slot structure, and the puncture bracket is fixed on the hospital bed through the slot structure.

Optionally, an anti-off structure is provided between the first telescopic support rod and the second telescopic support rod, the telescopic bracket and the sleeve.

The above-mentioned one or more technical solutions in the ultrasound-guided puncture auxiliary bracket provided by the utility model have at least one of the following technical effects:

The puncture support has multi-degree-of-freedom adjustments. The height and angle of the ultrasonic probe have coarse adjustment and fine adjustment means. There are two ways of coarse adjustment and fine adjustment for the height position of the second telescopic strut. Coarsely adjust the angular position of the meshing teeth, finely adjust the angular position through the universal joint, and adjust the length of the transverse arm through the first telescopic strut and the second telescopic strut, so as to accurately position the ultrasonic probe, the puncture point is precisely positioned, and the operation is simple.

The entire puncture support and the ultrasonic probe can be fixed on the surface of the patient's body. Even if the patient moves the body, the pressing position of the ultrasonic probe will not change, so the positioning position is not easy to lose.

After the ultrasound probe is fixed, it is no longer necessary for the doctor to hold and press the probe all the time, which not only saves manpower, but also avoids the problem of easy loss of position during manual long-term pressing operations.

During the puncture process, the position of the ultrasonic probe relative to the puncture point is always fixed, and the probe can still be used to observe the puncture site in real time during and after the puncture process, which improves the puncture accuracy and efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention. For some embodiments of the invention, those skilled in the art can also obtain other drawings according to these drawings without paying creative efforts.

Figure 1 is the front view of the puncture support after the ultrasonic probe is installed

Figure 2a is a top view of the puncture frame

Figure 2b is a side view of the puncture frame with the puncture needle installed

Fig. 3 is the bottom view of the second telescopic strut

Figure 4 is a top view of the supporting gear

Figure 5 is a schematic diagram of the structure of the universal joint locking bolt

Figure 6 is a schematic diagram of the structure of the telescopic bracket

Figure 7 is a schematic diagram of the fixed belt structure

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1-7, an accurate positioning ultrasound-guided puncture support includes an angle adjustment strut 1, a first telescopic strut 2, a second telescopic strut 3, a telescopic support 5, a sleeve 8, and an adjustment lock Tight nut 4, spring 6, support gear 7, fixed seat 9, puncture frame 100 and puncture frame fixing device 120; puncture frame 100 is fixedly connected with the left end of adjustment pole 1; the right end of adjustment pole 1 is connected with the left end of first telescopic pole 2 It is movably connected by the universal joint and locked by the universal joint locking bolt 13; the second telescopic strut body 35 at the left end of the second telescopic strut 3 is movably inserted into the right end of the first telescopic strut 2, and locked by the first lock Tighten bolt 22 and lock.

The telescopic bracket 5 is sequentially provided with the adjustment locking nut 4, the spring 6, the second telescopic pole 3, and the support gear 7 from top to bottom; the telescopic bracket 5 and the sleeve The upper end of the barrel 8 is telescopically connected; the lower end of the sleeve 8 is fixedly connected with the fixing base 9 through threads.

Described telescopic support 5 comprises upper support 52 and lower support 54, forms shaft shoulder 53 between upper support 52 and lower support 54, and upper support 52 upper section is external thread section 51, and upper support 52 lower section is polished rod; The right end of 3 is sleeved on the described polished rod of telescopic support 5, and there is a gap between the two, so that the second telescopic support rod 3 can slide up and down along the telescopic support 5; The adjustment lock nut 4; the lower end of the polished rod is fixedly sleeved with the support gear 7, and the two are connected by interference fit or key connection, and the lower end surface of the support gear 7 is attached to the shaft shoulder 53 to prevent the support gear 7 from rotating; the lower bracket 54 is movably inserted into the upper end of the sleeve 8 and locked by the second locking bolt 81 .

The second telescopic rod 3 includes a second telescopic rod body 35, a sleeve 34 and a guide arc 36 from left to right; the left end of the second telescopic rod body 35 is inserted into the first telescopic rod 2, and its right end is integrated The set plate 34 is set, the center of the set plate 34 is provided with a hole 32 connected with the telescopic bracket, and the lower end surface of the rightmost end of the set plate 34 is provided with a guide arc 36 concentric with the set plate 34 , the inner surface of the guide arc 36 is toothed 31 .

The center of the supporting gear 7 is provided with a round hole 72, through which the round hole 72 is fixedly connected with the polished rod, and the outer wall of the supporting gear 7 is evenly provided with sawtooth 71, and the sawtooth 71 and the tooth shape 31 can be moved up and down. Slide-on engagement.

The puncture frame 100 includes a puncture frame body 103, a flange 106, a puncture needle base 104, and a puncture frame fixing seat 102; the puncture frame body 103 is roughly oval, and its interior is hollow, and the hollow shape is similar to that of an ultrasonic probe. 101; one end of the puncture frame body 103 is provided with an opening, and the openings are respectively provided with the flanges 106 integrally, and the two flanges 106 are provided with bolt holes, and the ultrasonic probe 101 is fixed on the puncture frame by bolts On the main body 103; the other end of the puncture frame body 103 is fixedly or angle-adjustably provided with the puncture needle base 104, and the inside of the puncture needle base 104 is provided with a puncture needle hole 105; the puncture frame body 103 The middle part of the right end is integrally or welded with the puncture frame fixing seat 102 .

The left end of the angle adjusting pole 1 is integrally or welded with a puncture frame connecting block 11, and the puncture frame connecting block 11 is fixedly connected with the puncture frame fixing seat 102 by buckles or bolts; the angle adjusting pole 1 Universal ball 12 is fixedly arranged on the right end.

The left end of the first telescopic support rod 2 is fixedly provided with a universal ball seat 21, the left end of the universal ball seat 21 is open, and an inner cavity for accommodating the universal ball 12 is arranged therein. The ball seat 21 is axially provided with a threaded hole, and the universal joint locking bolt 13 passes through the threaded hole to lock the angle adjusting rod 1 .

The universal joint locking bolt 13 includes a handle 133 and a threaded rod 132, one end of the threaded rod 132 is a concave hemispherical surface 131, and the curvature of the hemispherical surface 131 is suitable for the curvature of the universal ball 12 and the surface of the hemispherical surface 131 is fixedly provided with a high friction layer, so that when the universal joint locking bolt 13 is tightened, the angle adjustment strut 1 is fixed.

The lower end surface of the fixed seat 9 is fixedly provided with a soft pad 92, and the left and right sides are provided with a fixed clamping device 91, and the fixed clamping device 91 is clamped with the puncture bracket fixing device 120, see accompanying drawing 7, the puncture bracket is fixed The clamping ends 121 of the device 120 are respectively clamped with the fixing clamping devices 91, so as to fix the puncture support on the patient's body or on the hospital bed.

Optionally, the puncture support fixing device 120 is a belt, and the belt has a belt buckle 122, through which the puncture support is fixed on the patient during abdominal puncture.

Optionally, in some embodiments, the puncture support fixing device 120 is two arc-shaped elastic snap rings (not shown in the drawings), and the puncture support is fixed on the patient through two arc-shaped elastic snap rings. .

Optionally, in some embodiments, the puncture support fixing device 120 is a slot structure (not shown in the drawings), through which the puncture support is fixed on the hospital bed.

Optionally, an anti-off structure is provided between the first telescopic rod 2 and the second telescopic rod 3, the telescopic bracket 5 and the sleeve 8 to prevent excessive stretching and detachment. This is the prior art of telescopic rods. I won't go into details here.

During specific use, for example, when ultrasound-guided puncture in the abdomen is required, the puncture support fixing device 120 can be a waist belt or two arc-shaped elastic snap rings, which tightly fix the entire puncture support on the upper body of the patient. The lower end surface of the lower end is fixedly provided with a soft pad 92, which not only makes the puncture support more fit to the human body, but also prevents the patient from feeling uncomfortable. Select an applicable ultrasonic probe 101 according to actual needs, fix the ultrasonic probe 101 on the puncture frame 100 by tightening the bolts to lock the flange 106 , and then fix the puncture frame 100 on the left end of the angle adjustment pole 1 . After the above steps are completed, the distance between the ultrasonic probe 101 and the patient's body surface can be roughly adjusted according to the patient's body shape, by adjusting the depth of the telescopic bracket 5 inserted into the sleeve 8, and tightening the second locking bolt 81 to lock the position. The difference is not large, and the coarse adjustment function is not commonly used. Under normal circumstances, locking the second locking bolt 81 can meet the requirements of most puncture work. According to the position to be punctured, lift up the second telescopic pole 3 so that the guide arc 36 is disengaged from the support gear 7, turn the second telescopic pole 3 to a suitable angle position, put down the second telescopic pole 3, and Under the compression effect of 6, the guide arc 36 and the support gear 7 are automatically meshed again, thereby locking the angular position of the second telescopic strut 3, and realizing the coarse adjustment function of the rotation angle. At this time, the length of the first telescopic pole 2 and the second telescopic pole 3 can be stretched, and the angle between the angle adjustment pole 1 and the first telescopic pole 2 can still be adjusted universally within a certain range. After finally determining the puncture point, tighten the first locking bolt 22 and the universal joint locking bolt 13 successively. Finally, if the pressure applied by the ultrasonic probe 101 is not enough, the locking nut 4 can be rotated clockwise to further compress the spring 6 to increase the pressure, so that the ultrasonic probe 101 is tightly attached to the desired position. At this time, since the entire puncture support and the ultrasonic probe 101 are firmly fixed on the surface of the patient's body, if the patient moves the body, the pressing position of the ultrasonic probe 101 will not change accordingly, and it is no longer necessary for the doctor to hold the ultrasonic probe 101 all the time. The doctor's hands are completely liberated, manpower is saved, and the positioning is fixed precisely, which avoids the problem of positioning loss caused by the doctor's hand-held operation error or the patient's movement. After the above work is completed, the angle of the puncture needle base 104 can be adjusted according to the guidance of the ultrasound image, and the puncture work can be performed at a suitable angle.

In addition, when it is not suitable or unnecessary to fix the puncture support on the patient's body, it can also be equipped with a puncture support fixing device 120 capable of fixing it on other positions such as a hospital bed.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of the new protection.

Claims (10)

1. An ultrasound-guided puncture support for accurate positioning, characterized in that it comprises an angle adjustment strut (1), a first telescopic strut (2), a second telescopic strut (3), a telescopic support (5), Sleeve (8), adjusting lock nut (4), spring (6), support gear (7), fixed seat (9), puncture frame (100) and puncture support fixing device (120); The puncture frame (100) is fixedly connected to the left end of the adjusting rod (1); the right end of the adjusting rod (1) is flexibly connected to the left end of the first telescopic rod (2) through a universal joint, and The universal joint locking bolt (13) is locked; the second telescopic pole body (35) at the left end of the second telescopic pole (3) is movably inserted into the right end of the first telescopic pole (2), and passes through The first locking bolt (22) is locked; The telescopic bracket (5) is sequentially provided with the adjustment locking nut (4), the spring (6), the second telescopic support rod (3), the support gear (7) from top to bottom The telescopic support (5) is telescopically connected to the upper end of the sleeve (8); the lower end of the sleeve (8) is fixedly connected to the fixing seat (9) through threads; Described telescopic support (5) comprises upper support (52) and lower support (54), forms shaft shoulder (53) between upper support (52) and lower support (54), and upper support (52) upper segment is external thread section (51), the lower part of the upper support (52) is a polished rod; the right end of the second telescopic support rod (3) is sleeved on the polished rod of the telescopic support (5), and there is a gap between the two, so that the The second telescopic support rod (3) can slide up and down along the telescopic bracket (5); the external thread section (51) of the telescopic bracket (5) is threadedly connected to the adjustment lock nut (4); The lower end of the polished rod is fixedly sleeved with the support gear (7), and the two are connected by an interference fit or a key connection, and the lower end surface of the support gear (7) is attached to the shaft shoulder (53), prevent the support gear (7) from rotating; the lower bracket (54) is movably inserted into the upper end of the sleeve (8), and locked by the second locking bolt (81); The fixing seat (9) is fixed on the patient's body or on the hospital bed by the puncture bracket fixing device (120); The second telescopic strut (3) includes a second telescopic strut body (35), a sleeve (34) and a guide arc (36) from left to right; the left end of the second telescopic strut body (35) is inserted into The first telescopic pole (2), the right end of which is integrally provided with the sleeve (34), the center of the sleeve (34) is provided with a hole (32) connected with the telescopic support (5), the sleeve A guide arc (36) concentric with the sleeve disc (34) is provided on the lower end surface of the rightmost end of the disc (34), and the inner surface of the guide arc (36) is provided with a tooth shape (31); The center of the support gear (7) is provided with a round hole (72), through which the hole (72) is fixedly connected with the polished rod, and the outer wall of the support gear (7) is uniformly provided with sawtooth (71). The sawtooth (71) and the tooth shape (31) can slide up and down and engage in a plug-in type. 2. The accurately positioned ultrasound-guided puncture support according to claim 1, characterized in that, the puncture support (100) comprises a puncture support body (103), a flange (106), a puncture needle base (104) , the puncture frame fixing seat (102); the puncture frame body (103) is roughly oval, and its interior is hollow, and the shape of the hollow is compatible with the ultrasonic probe (101); one end of the puncture frame body (103) is open The flanges (106) are integrally provided at the openings, and the two flanges (106) are provided with bolt holes, and the ultrasonic probe (101) is fixed on the puncture frame body (103) by bolts. Above; the other end of the puncture frame body (103) is fixedly or angle-adjustably provided with the puncture needle base (104), and the puncture needle base (104) is provided with a puncture needle hole (105) inside ); the middle part of the right end of the puncture frame body (103) is integrated or welded with the puncture frame fixing seat (102). 3. Accurately positioned ultrasound-guided puncture support according to claim 2, characterized in that, the left end of the angle-adjusting strut (1) is integrally or welded with a puncture frame connecting block (11), and the puncture frame The connection block (11) is fixedly connected to the puncture frame fixing seat (102) by buckles or bolts; the right end of the angle adjustment pole (1) is fixedly provided with a universal ball (12). 4. Accurately positioned ultrasound-guided puncture support according to claim 3, characterized in that, the left end of the first telescopic strut (2) is fixedly provided with a universal ball seat (21), and the universal ball The left end of the seat (21) is open, and an inner cavity for accommodating the universal ball (12) is arranged in it. The universal ball seat (21) is provided with a threaded hole in the axial direction, and the universal joint is locked. Bolts (13) pass through the threaded holes to lock the angle adjustment pole (1). 5. The accurately positioned ultrasound-guided puncture support according to claim 4, characterized in that, the universal joint locking bolt (13) comprises a handle (133) and a threaded rod (132), and the threaded rod ( One end of 132) is a concave hemispherical surface (131), the curvature of the hemispherical surface (131) is adapted to the curvature of the universal ball (12), and the surface of the hemispherical surface (131) is fixedly provided with High friction layer. 6. Accurately positioned ultrasound-guided puncture support according to claim 1, characterized in that, the lower end surface of the fixing seat (9) is fixedly provided with a cushion (92), and the left and right sides are provided with fixed clamping devices (91), the fixing clamping device (91) is clamped with the puncture bracket fixing device (120), and the clamping ends (121) of the puncture bracket fixing device (120) are respectively clamped with the fixing bracket Device (91) snaps in. 7. The accurately positioned ultrasound-guided puncture support according to claim 6, characterized in that, the puncture support fixing device (120) is a waist belt, and the waist belt has a belt buckle (122). 8. The accurately positioned ultrasound-guided puncture stent according to claim 6, characterized in that, the puncture stent fixing device (120) is two arc-shaped elastic snap rings. 9. Accurately positioned ultrasound-guided puncture support according to claim 6, characterized in that, the puncture support fixing device (120) is a slot structure, through which the puncture support is fixed on the hospital bed superior. 10. Accurately positioned ultrasound-guided puncture support according to claim 1, characterized in that, the first telescopic strut (2) and the second telescopic strut (3), the telescopic support (5) ) and the sleeve (8) are provided with an anti-off structure.

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