Guiding device for transesophageal cardiac ultrasound placement

Abstract

The invention discloses a guide device for transesophageal cardiac ultrasound placement, and relates to the technical field of medical instruments, the guide device comprises a guide outer tube, two annular hollow plates are movably mounted on the outer side of the guide outer tube in a sleeving manner, and annular plates are movably mounted on the outer sides of the two annular hollow plates in a sleeving manner; positioning mechanisms are arranged between the annular plates and the annular hollow plate, connecting mechanisms are arranged on the sides, away from each other, of the two annular plates, and connecting hoppers are fixedly connected to the opposite sides of the two annular plates. When the parts such as the guide outer tube and the buccal plate need to be disinfected, the operation can be repeated to finish the fixation between the annular hollow plate and the guide outer tube, and then the parts such as the integral external thread sleeve and the connecting hopper are directly stroked down from the guide outer tube along the port of the guide outer tube, so that the parts such as the buccal plate and the guide outer tube can be conveniently and subsequently disinfected in a classified manner; and the problem of local damage caused by unified disinfection is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a guiding device for transesophageal cardiac ultrasound placement. Background Art

[0002] Transesophageal ultrasound is a diagnostic method that uses ultrasound technology to perform a comprehensive and detailed examination of the heart by inserting an esophageal probe through the mouth. It can provide detailed information about the structure, function and hemodynamics of the heart, which is of great value for the diagnosis and treatment of heart disease.

[0003] Patent number: CN202221090311.8 is a transesophageal cardiac ultrasound placement guide device, which solves the problems of the existing transesophageal cardiac ultrasound placement guide devices on the market, which do not have a good adjustment mechanism to adjust and control the diameter of the mouthpiece during use, and the mouthpiece causes secondary injury to the patient's oral cavity because the caliber of each patient is different, which is inconvenient to use, and the outer wall of the outer tube body is not made of good rubber material, which causes the outer tube body to directly contact the patient's intestines, causing mucosal extrusion of the patient's intestines, making it inconvenient for the patient to receive treatment. However, in actual use, there are still some defects: first, the connection plate and the outer tube body are in a fixed state, which leads to a fixed length between the port of the outer tube body and the connection plate, and the length between the outer tube body and the connection plate cannot be adjusted according to actual needs. Secondly, when disinfecting after use, because it is made of a variety of materials, and the connection plate and other components cannot be disassembled from the outer tube body, the disinfection method of the corresponding material instrument is adopted.

[0004] To this end, the present invention proposes a guide device for transesophageal cardiac ultrasound placement. Summary of the invention

[0005] The technical problem solved by the present invention is to overcome the defects of the prior art such as being unable to be disassembled for classification and disinfection and being unable to adjust the distance between the mouthpiece and the port of the guide outer tube, and to provide a guide device for transesophageal cardiac ultrasound placement.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a guiding device for transesophageal cardiac ultrasound placement, comprising a guiding outer tube, two annular hollow plates are movably mounted on the outer side of the guiding outer tube, annular plates are movably mounted on the outer sides of the two annular hollow plates, a positioning mechanism is arranged between the annular plates and the annular hollow plates, and a connecting mechanism is arranged on the side away from the two annular plates, connecting buckets are fixedly connected to the opposite sides of the two annular plates, an external threaded sleeve is fixedly connected between the two connecting buckets, the external threaded sleeve and the two connecting buckets are movably mounted on the outer side of the guiding outer tube, an internal threaded sleeve is threadedly connected to the outer side of the external threaded sleeve, a bearing is fixedly mounted on the outer side of the internal threaded sleeve near the bottom, two push rods are hinged on the outer wall of the bearing, a mouth plate is hinged on the bottom end of the push rod, vertical blocks are movably mounted on the bottom of the two mouth plates, and the vertical blocks are fixedly connected to the outer wall of the bottom connecting bucket.

[0007] Preferably, the positioning mechanism includes a plurality of arc-shaped push blocks, which are respectively fixedly connected to the inner wall of the annular plate, and arc-shaped pads are respectively fitted on the outer walls of the arc-shaped push blocks, and round rods are fixedly connected to the side walls of the arc-shaped pads. A plurality of circular holes are provided on the annular hollow plate, and one end of the round rod away from the arc-shaped pad passes through two corresponding circular holes and is fixedly connected with a rubber pad, which is fitted with the outer wall of the guide outer tube, a stopper is fixedly installed on the outer side of the round rod, a spring is fixedly connected between the stopper and the inner wall of the annular hollow plate, and the spring is sleeved on the outside of the round rod.

[0008] Preferably, the connecting mechanism includes a circular sleeve, which is movably mounted on the outside of the guide outer tube, and a sliding groove is provided on the side of the circular sleeve close to the annular plate. The sliding groove is arranged in an annular shape, and a plurality of sliders are slidably connected to the inner cavity of the sliding groove. An elastic column is fixedly connected between the outer wall of the slider and the inner wall of the sliding groove, and a connecting rod is fixedly connected between the slider and the annular plate.

[0009] Preferably, limiting grooves are provided on the outer side of the annular hollow plate near the top and the bottom, the inner cavities of the two limiting grooves are slidably connected to limiting rings, the outer sides of the two limiting rings are fixedly connected to a plurality of cross bars, and the end of the cross bar away from the limiting ring is fixedly connected to the inner wall of the annular plate.

[0010] Preferably, two side blocks are fixedly connected to the outer wall of the connecting bucket at the bottom, two connecting ropes are fixedly connected to the sides away from the two side blocks, and the ends of the two connecting ropes away from the side blocks are commonly fixedly connected to the connecting block.

[0011] Preferably, a plurality of side grooves are provided on the outer side of the annular plate, and the plurality of side grooves are evenly distributed.

[0012] Preferably, the bottom end of the guide outer tube is spherically smooth.

[0013] Preferably, the two oral plates are both arranged in an arc shape, and the two oral plates are symmetrically arranged with the central axis of the guiding outer tube as the symmetry axis.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is in use, an elastic column, a spring, a rubber pad and a round rod are provided. At this time, the multiple elastic columns are in the initial state and the multiple springs are in the stretched state. When adjusting the distance between the oral plate and the port of the guide outer tube to suit different patients' surgeries, the two annular plates can be rotated so that the two annular plates respectively drive the corresponding multiple arc-shaped push blocks to move, so that the arc-shaped push blocks slowly separate from the corresponding arc-shaped cushion blocks. At this time, the arc-shaped cushion blocks slowly reset to the outside under the action of the corresponding springs, so that the arc-shaped cushion blocks drive the rubber pads on the corresponding round rods to be pulled out of the round holes, and at the same time, the rubber pads on the round rods are separated from the guide outer tube, so that the guide outer tube and the annular hollow plate are separated. Then, the external threaded sleeve, the annular hollow plate and other components can be slid outside the guide outer tube, and the external threaded sleeve drives the outer oral plate to move. After the oral plate moves to a suitable position, the two annular plates are loosened, so that the multiple arc-shaped push blocks on the two annular plates push the corresponding arc-shaped cushion blocks to move again, so that the multiple rubber pads are reset, and the annular hollow plate and the guide outer tube are further fixed again, and the oral plate and other components are fixed again with the guide outer tube, which is convenient to operate.

[0015] 2. When the present invention is in use, by providing an external threaded sleeve, an internal threaded sleeve and a push rod, the inclination angle of the two oral plates can be adjusted when it is suitable for different patients. At this time, the internal threaded sleeve can be rotated so that the internal threaded sleeve pushes the bearing downward under the threaded connection with the external threaded sleeve, and the bearing drives the two outer push rods to move downward, and the push rod drives the corresponding oral plates to tilt and deflect, so as to adjust the opening angle of the oral plates, thereby being suitable for use by different patients, and after the opening angle of the oral plates is adjusted, self-locking can be achieved by using the thread.

[0016] 3. When the present invention is in use, by providing an external threaded sleeve and a guide outer tube, after subsequent use, when it is necessary to disinfect the guide outer tube, the oral plate and other components, the above operation can be repeated to complete the fixation between the annular hollow plate and the guide outer tube, and then the overall external threaded sleeve, the connecting bucket and other components can be directly pulled off from the guide outer tube along the port of the guide outer tube, so as to facilitate the subsequent classified disinfection of the oral plate, the guide outer tube and other components, and avoid the problem of local damage caused by unified disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 For the present invention Figure 1 Schematic diagram of the local structure in; Figure 4 It is a structural schematic diagram of the threaded sleeve of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the local structure at a certain angle; Figure 6 For the present invention Figure 4 A schematic diagram of the local structure from another angle; Figure 7 It is a schematic diagram of the elastic column and its partial cross-section and partial enlarged structure of the present invention.

[0018] Numbers in the figure: 1. Guide outer tube; 2. External threaded sleeve; 3. Connecting bucket; 4. Vertical block; 5. Mouth plate; 6. Side block; 7. Connecting rope; 8. Connecting block; 9. Internal threaded sleeve; 10. Bearing; 11. Push rod; 12. Annular plate; 13. Connecting rod; 14. Round sleeve; 15. Sliding block; 16. Slide groove; 17. Elastic column; 18. Annular hollow plate; 19. Round hole; 20. Round rod; 21. Rubber pad; 22. Stop block; 23. Spring; 24. Arc pad; 25. Arc push block; 26. Cross bar; 27. Limiting ring; 28. Limiting groove; 29. ​​Side groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments 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.

[0020] See also Figure 1-7The present invention provides a technical solution: a guide device for transesophageal cardiac ultrasound placement, comprising a guide outer tube 1, two annular hollow plates 18 are movably mounted on the outer side of the guide outer tube 1, annular plates 12 are movably mounted on the outer sides of the two annular hollow plates 18, a positioning mechanism is arranged between the annular plates 12 and the annular hollow plates 18, and a connecting mechanism is arranged on the side away from the two annular plates 12, a connecting bucket 3 is fixedly connected to the opposite side of the two annular plates 12, an external threaded sleeve 2 is fixedly connected between the two connecting buckets 3, and an external threaded sleeve 2 is fixedly connected between the two connecting buckets 3, and an external threaded sleeve 2 is fixedly connected between the two connecting buckets 3. The threaded sleeve 2 and the two connecting buckets 3 are both movably mounted on the outside of the guide outer tube 1. The outer side of the external threaded sleeve 2 is threadedly connected to the internal threaded sleeve 9. A bearing 10 is fixedly installed on the outer side of the internal threaded sleeve 9 near the bottom. Two push rods 11 are hinged on the outer wall of the bearing 10. A mouth plate 5 is hinged at the bottom of the push rod 11. The two mouth plates 5 are both arranged in an arc shape, and the two mouth plates 5 are symmetrically arranged with the central axis of the guide outer tube 1 as the symmetry axis. Vertical blocks 4 are movably installed at the bottom of the two mouth plates 5, and the vertical blocks 4 are fixedly connected to the outer wall of the bottom connecting bucket 3.

[0021] See also Figure 2 and Figure 7 The positioning mechanism includes a plurality of arc-shaped push blocks 25, which are respectively fixedly connected to the inner wall of the annular plate 12, and the outer walls of the plurality of arc-shaped push blocks 25 are respectively fitted with arc-shaped pads 24, and the side walls of the plurality of arc-shaped pads 24 are fixedly connected with round rods 20, and the annular hollow plate 18 is provided with a plurality of circular holes 19, and one end of the round rod 20 away from the arc-shaped pads 24 passes through two corresponding circular holes 19, and is fixedly connected with a rubber pad 21, and the rubber pad 21 is fitted with the outer wall of the guide outer tube 1, and a stopper 22 is sleeved and fixedly installed on the outer side of the round rod 20, and a spring 23 is fixedly connected between the stopper 22 and the inner wall of the annular hollow plate 18, and the spring 23 is sleeved on the outer side of the round rod 20. Through this arrangement, the fixing operation between the annular hollow plate 18 and the guide outer tube 1 can be realized, and the fixed installation between the oral plate 5 and other components and the guide outer tube 1 can be further realized, so as to facilitate the purpose of adjusting the position of the oral plate 5.

[0022] See also Figure 7 The connecting mechanism includes a circular sleeve 14, which is movably mounted on the outside of the guide outer tube 1, and a slide groove 16 is provided on the side of the circular sleeve 14 close to the annular plate 12. The slide groove 16 is arranged in an annular shape, and a plurality of sliders 15 are slidably connected to the inner cavity of the slide groove 16. An elastic column 17 is fixedly connected between the outer wall of the slider 15 and the inner wall of the slide groove 16, and a connecting rod 13 is fixedly connected between the slider 15 and the annular plate 12. Through this arrangement, when the annular plate 12 rotates, it can drive the sliders 15 on the corresponding multiple connecting rods 13 to compress the corresponding elastic columns 17, which is convenient for later reset.

[0023] See also Figure 7Limiting grooves 28 are provided on the outer side of the annular hollow plate 18 near the top and the bottom. The inner cavities of the two limiting grooves 28 are slidably connected to the limiting rings 27. The outer sides of the two limiting rings 27 are fixedly connected with a plurality of cross bars 26. The end of the cross bar 26 away from the limiting ring 27 is fixedly connected to the inner wall of the annular plate 12. Through this arrangement, the connection operation between the annular plate 12 and the annular hollow plate 18 is realized, ensuring that the annular plate 12 can stably perform subsequent work.

[0024] See also Figure 1 , Figure 3 and Figure 4 Two side blocks 6 are fixedly connected to the outer wall of the bottom connecting bucket 3, and two connecting ropes 7 are fixedly connected to the sides away from the two side blocks 6. The ends of the two connecting ropes 7 away from the side blocks 6 are commonly fixedly connected to a connecting block 8. Through this arrangement, the subsequent oral plate 5, external threaded sleeve 2 and other components can be fixed to the patient's head, thereby improving the stability of subsequent operations.

[0025] See also Figure 5 , Figure 6 and Figure 7 A plurality of side grooves 29 are formed on the outer side of the annular plate 12 , and the side grooves 29 are evenly distributed. This arrangement allows subsequent staff to insert their fingers into the side grooves 29 to facilitate the rotation of the annular plate 12 .

[0026] See also Figure 1 and Figure 2 The bottom end of the guiding outer tube 1 is spherically smooth, and this configuration can prevent the guiding outer tube 1 from rubbing or scratching the inner wall of the patient's esophagus when entering the patient's esophagus.

[0027] Working principle: In the initial state of the device, multiple springs 23 are in a stretched state, and multiple elastic columns 17 are in an original state. In actual use, it is first necessary to adjust the distance between the oral plate 5 and the port of the guide outer tube 1 according to the actual situation of the patient. At this time, the two annular plates 12 can be rotated so that the two annular plates 12 respectively drive the corresponding multiple arc-shaped push blocks 25 to move, so that the arc-shaped push blocks 25 slowly separate from the corresponding arc-shaped cushion blocks 24. At this time, the arc-shaped cushion blocks 24 slowly reset to the outside under the action of the corresponding springs 23, so that the arc-shaped cushion blocks 24 drive the rubber pads 21 on the corresponding round rods 20 to be pulled out of the round holes 19, and at the same time, the rubber pads 21 on the round rods 20 are separated from the guide outer tube 1. The guide outer tube 1 is separated from the annular hollow plate 18, and in the above process, the annular plate 12 also drives the bottom multiple connecting rods 13 to rotate, and the connecting rods 13 drive the bottom slider 15 to slide inside the slide groove 16, and the slider 15 stretches the corresponding elastic column 17, and then the external threaded sleeve 2, the annular hollow plate 18 and other components can be slid outside the guide outer tube 1, the external threaded sleeve 2 drives the connecting bucket 3 to slide, and the connecting bucket 3 drives the outer mouth plate 5 to move. After the mouth plate 5 moves to a suitable position, the two annular plates 12 are released, so that the multiple arc-shaped push blocks 25 on the two annular plates 12 are reset under the elastic force of the multiple elastic columns 17, and the corresponding arc-shaped pads 24 are pushed again to move. The circular rod 20 is moved, and the multiple arc-shaped pads 24 push the corresponding round rods 20 to move respectively. The round rod 20 drives the rubber pad 21 to be closely attached to the outer wall of the guide outer tube 1 again, and the round rod 20 also drives the outer stopper 22 to stretch the spring 23. The close contact between the rubber pad 21 and the outer wall of the guide outer tube 1 is used to re-realize the fixation between the annular hollow plate 18 and the guide outer tube 1, and the re-fixation between the oral plate 5 and other components and the guide outer tube 1 is realized. The operation is convenient, and then the opening angle of the two oral plates 5 is adjusted, and the internal threaded sleeve 9 can be slowly rotated, so that the internal threaded sleeve 9 pushes the bearing 10 downward under the threaded connection between the internal threaded sleeve 9 and the external threaded sleeve 2, and the bearing 10 drives the two outer push rods 11 to move downward, and the push rods 11 push The corresponding oral plate 5 is tilted and deflected to adjust the opening angle of the oral plate 5, so that it can be suitable for different patients. After the opening angle of the oral plate 5 is adjusted, the thread can be used to achieve self-locking. Then the guide outer tube 1 can be slowly inserted into the patient's esophagus, and the bottom circular sleeve 14 and other components are located in the patient's mouth. The two opened oral plates 5 pry open the patient's mouth, and the connecting ropes 7 and connecting blocks 8 on both sides can be used to tie the whole to the patient's head to further achieve fixation, which is convenient for subsequent operations. Subsequent medical staff can insert components such as ultrasound probes into the interior of the guide outer tube 1, and enter the patient's body along the guide outer tube 1 to perform ultrasound detection on the patient's heart.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guiding device for transesophageal cardiac ultrasound placement, comprising a guiding outer tube (1), characterized in that: Two annular hollow plates (18) are movably mounted on the outer side of the guide outer tube (1), and an annular plate (12) is movably mounted on the outer side of each of the two annular hollow plates (18). A positioning mechanism is provided between the annular plates (12) and the annular hollow plates (18), and a connecting mechanism is provided on the two sides of the two annular plates (12) that are away from each other. A connecting bucket (3) is fixedly connected to the opposite side of the two annular plates (12), and an external threaded sleeve (2) is fixedly connected between the two connecting buckets (3). The external threaded sleeve (2) is fixedly connected to the outer side of the two connecting buckets (3). The threaded sleeve (2) and the two connecting buckets (3) are both sleeved and movably mounted on the outside of the guide outer tube (1); the outer side of the external threaded sleeve (2) is threadedly connected to an internal threaded sleeve (9); a bearing (10) is fixedly mounted on the outer side of the internal threaded sleeve (9) near the bottom; two push rods (11) are hingedly mounted on the outer wall of the bearing (10); a mouth plate (5) is hingedly mounted at the bottom end of the push rod (11); vertical blocks (4) are movably mounted on the bottom of the two mouth plates (5); and the vertical blocks (4) are fixedly connected to the outer wall of the bottom connecting bucket (3).

2. A transesophageal ultrasound cardiac placement guiding device according to claim 1, characterized in that: The positioning mechanism comprises a plurality of arc-shaped push blocks (25), the plurality of arc-shaped push blocks (25) being fixedly connected to the inner wall of the annular plate (12), and the outer walls of the plurality of arc-shaped push blocks (25) being respectively fitted with arc-shaped cushion blocks (24), and the side walls of the plurality of arc-shaped cushion blocks (24) being fixedly connected with round rods (20), the annular hollow plate (18) being provided with a plurality of round holes (19), one end of the round rod (20) away from the arc-shaped cushion block (24) passing through two corresponding round holes (19), and being fixedly connected with a rubber cushion (21), the rubber cushion (21) being fitted with the outer wall of the guide outer tube (1), a stopper (22) being sleeved and fixedly installed on the outer side of the round rod (20), a spring (23) being fixedly connected between the stopper (22) and the inner wall of the annular hollow plate (18), and the spring (23) being sleeved on the outer side of the round rod (20).

3. A transesophageal ultrasound cardiac placement guiding device according to claim 1, characterized in that: The connecting mechanism comprises a circular sleeve (14), the circular sleeve (14) being movably mounted on the outside of the guide outer tube (1), and a slide groove (16) being provided on a side of the circular sleeve (14) close to the annular plate (12), the slide groove (16) being arranged in an annular shape, and a plurality of sliders (15) being slidably connected to the inner cavity of the slide groove (16), an elastic column (17) being fixedly connected between the outer wall of the slider (15) and the inner wall of the slide groove (16), and a connecting rod (13) being fixedly connected between the slider (15) and the annular plate (12).

4. A transesophageal ultrasound cardiac placement guiding device according to claim 1, characterized in that: Limiting grooves (28) are provided on the outer side of the annular hollow plate (18) near the top and the bottom, the inner cavities of the two limiting grooves (28) are slidably connected to limiting rings (27), the outer sides of the two limiting rings (27) are fixedly connected to a plurality of cross bars (26), and one end of the cross bar (26) away from the limiting ring (27) is fixedly connected to the inner wall of the annular plate (12).

5. The guiding device for transesophageal cardiac ultrasound placement according to claim 1, characterized in that: Two side blocks (6) are fixedly connected to the outer wall of the connecting bucket (3) at the bottom, two connecting ropes (7) are fixedly connected to the sides of the two side blocks (6) away from each other, and the ends of the two connecting ropes (7) away from the side blocks (6) are fixedly connected to a connecting block (8) at both ends.

6. The guiding device for transesophageal cardiac ultrasound placement according to claim 1, characterized in that: A plurality of side grooves (29) are formed on the outer side of the annular plate (12), and the plurality of side grooves (29) are evenly distributed.

7. The guiding device for transesophageal cardiac ultrasound placement according to claim 1, characterized in that: The bottom end of the guide outer tube (1) is spherically smooth.

8. The guiding device for transesophageal cardiac ultrasound placement according to claim 1, characterized in that: The two oral plates (5) are both arranged in an arc shape, and the two oral plates (5) are symmetrically arranged with the central axis of the guiding outer tube (1) as the symmetry axis.

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