Internal fistula ultrasonic fixing frame
By designing a fixture for ultrasound examination of fistula, the problem of patient arm movement affecting examination quality is solved, and higher ultrasound image accuracy and examination efficiency are achieved.
Patent Information
- Application Number
- CN202420922300.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-29
AI Technical Summary
During ultrasound examination of fistula, the patient's arms are prone to move, causing the examination site to move or deform, affecting the quality and accuracy of the ultrasound image.
A fistula ultrasonic fixing frame is designed, including a base, an electric lifting rod, an arm support frame, a transverse fixing plate, a vertical support rod and a clamping mechanism. The arm is fixed by a T-shaped slide rod and a knob. The clamping mechanism uses U A shaped ring and strip plug secure the arm to ensure that the blood vessels are not squeezed.
Effectively fix the patient's arms, improve the accuracy and quality of ultrasound images, ensure the accuracy of the doctor when marking the puncture site, and reduce examination time.
Smart Images
Figure CN222444165U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of internal fistula ultrasonic examination, in particular to a fixing frame of internal fistula ultrasonic examination. Background Art
[0002] When performing ultrasound examination of arteriovenous fistula, doctors usually choose 5-12MHz linear array high-frequency probe to ensure the accuracy and clarity of the examination. Before the examination, the doctor will ask the patient's medical history in detail, including the location of the fistula, the anastomosis method, the use time, etc., in order to have a more comprehensive understanding of the condition.
[0003] During ultrasound examination of fistula, patients usually need to maintain a specific body position so that doctors can clearly observe the vascular structure and blood flow. Some patients even need to mark the puncture site on their arms when their fistula is more serious and the structure is more complicated. This will take a long time to examine. Usually, the patient's arm is placed on the table, so the patient will inevitably move and the examination site may move or deform, thus affecting the quality and accuracy of the ultrasound image, as well as the accuracy of the doctor's marking of the puncture site. Utility Model Content
[0004] In order to solve the problems raised by the above background technology, the utility model provides a fistula ultrasound fixing frame, which has the advantages of fixing the patient's arm, improving the accuracy and quality of the ultrasound image when the doctor examines the fistula patient, and at the same time improving the accuracy of the doctor when marking the puncture site. To achieve the above purpose, the utility model provides the following technical solutions: a fistula ultrasound fixing frame, including a base placed on the ground, an arm support frame is fixed to the upper end of the base through an electric lifting rod, a horizontal fixing plate is slidably provided on one side of the arm support frame, a vertical support rod is slidably provided on one side of the arm support frame, and a first clamping mechanism A is provided on the upper part of the vertical support rod;
[0005] The first clamping mechanism A comprises a movable seat fixedly mounted on the upper part of the vertical support rod, a ratchet wheel is rotatably mounted on one side of the movable seat, the ratchet wheel is engaged with a pawl, and the pawl is fixedly mounted on the surface of one side of the first cross bar;
[0006] The first cross bar is connected to a second cross bar at one end away from the first clamping mechanism A, and a second clamping mechanism B is provided at one side of the second cross bar at the junction with the first cross bar, and the second clamping mechanism has the same structure as the first clamping mechanism;
[0007] The clamping mechanism includes a movable column movably passing through one side of the second cross bar, an upper clamp plate movably passing through the upper part of the movable column, a lower clamp plate fixedly connected to the lower surface of the movable column, the lower surface of the upper clamp plate is fixedly connected to one side of the second cross bar, a spring is fixedly connected between the lower surface and the upper surface of the lower clamp plate, a connecting block for connecting to the upper surface of the U-shaped ring part is fixedly provided on the lower surface of the lower clamp plate, a plurality of slots distributed in an array are provided on the inner surface of the U-shaped ring, and a strip rubber plug is detachably inserted into the inside of the slot.
[0008] Preferably, the first clamping mechanism A comprises a first cross bar at one end away from the second clamping mechanism B, through which a rotating shaft movably penetrates, and the rotating shaft movably penetrates the upper part of the movable seat.
[0009] Preferably, the second clamping mechanism B includes a ratchet of the second clamping mechanism B fixed on the outer surface of one side of the first cross bar, the ratchet of the second clamping mechanism B is engaged with the pawl of the second clamping mechanism B, the inner surface of one side of the pawl of the second clamping mechanism B is fixedly connected to the outer surface of the rotating shaft of the second clamping mechanism B, and the rotating shaft of the second clamping mechanism B is fixed on the outer surface of one side of the second cross bar.
[0010] Preferably, the clamping mechanism also includes a rope hole fixed on the upper surface of the movable column, a first steel wire rope is movably inserted through the through hole of the rope hole, two ends of the first steel wire rope pass through the pulley and are fixedly connected to two rope clamps respectively, and the two rope clamps are respectively fixed on both sides of the outer surface of the U-shaped ring.
[0011] Preferably, four pulleys are fixed on the outer surface of the movable column and the lower surfaces on both sides of the upper clamp, respectively. The four pulleys are divided into two groups and are symmetrically arranged with each other. The surface of one group of pulleys is slidably arranged with the first steel wire rope, and the surface of the other group of pulleys is slidably arranged with the two second steel wire ropes respectively, and the rope hole, the first steel wire rope, the pulley, and the rope clamp are located on the same axis.
[0012] Preferably, two rope clamps are symmetrically fixed on both sides of the upper surface of the lower clamping plate, and the two rope clamps are respectively fixed to one end of two second steel wire ropes passing through the pulley, and the other ends of the two second steel wire ropes are fixed to the rope drum.
[0013] Preferably, one side surface of the rope drum is fixedly connected to one side surface of the first cross bar.
[0014] Preferably, the vertical support rod and the lower part of the horizontal fixed plate are fixed with a T-shaped sliding rod, and a T-shaped sliding groove is opened on one side of the arm support frame. The T-shaped sliding rod is slidably set in the T-shaped sliding groove, and the two surfaces of the two T-shaped sliding rods facing away from the T-shaped sliding groove are respectively threaded with two knobs, and the threaded surfaces of the two knobs are in contact with the inner surface of the T-shaped sliding groove.
[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0016] 1. The utility model drives the transverse fixing plate to move by sliding the T-shaped slide bar in the T-shaped slide groove, so that the surface of the transverse fixing plate is against the patient's bent finger or fist, and then fixes the transverse fixing plate by a knob on one side of the T-shaped slide bar, thereby playing a role of transversely fixing the patient's arm.
[0017] 2. The utility model drives the second cross bar to move downward by moving the first cross bar downward, and then drives the movable column and the U-shaped ring to move downward. When the U-shaped ring moves, the inner walls on both sides are tightened until the patient's arm is clamped. The strip rubber plug in the inner slot of the U-shaped ring is pulled out to prevent the U-shaped ring from squeezing the blood vessels to be examined in the arm when the arm is fixed. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the front view structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the utility model;
[0020] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure of C;
[0021] Figure 4 For this utility model Figure 1 A local enlarged structural schematic diagram;
[0022] Figure 5 For this utility model Figure 1 B is a schematic diagram of a local enlarged structure;
[0023] Figure 6 For this utility model Figure 1 B is a schematic diagram of the enlarged structure of a partial top view.
[0024] Figure: 1. Base; 2. Electric lifting rod; 3. Arm support frame;
[0025] 4. Clamping mechanism; 401. Upper clamping plate; 402. Spring; 403. Lower clamping plate; 404. Movable column; 405. Rope clamp; 406. U-shaped ring; 407. Strip rubber plug; 408. Connecting block; 409. First steel wire rope; 410. Rope hole; 411. Rope clamp; 412. Pulley; 413. Slot; 414. Second steel wire rope;
[0026] 5. First clamping mechanism A; 51. Ratchet; 52. Ratchet; 53. Rotating shaft; 54. Movable seat;
[0027] 6. Vertical support rod; 7. First cross bar;
[0028] 8. Knob; 9. Horizontal fixing plate; 10. Rope drum; 11. Second cross bar; 12. Second clamping mechanism B; 13. T-shaped slide bar; 14. T-shaped slide groove. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings of the embodiments of the utility model to clearly and completely describe the technical solutions of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] like Figures 1 to 6 As shown, the utility model provides a fixed frame for internal fistula ultrasound, including a base 1 placed on the ground, an electric lifting rod 2 is welded on the upper surface of the base 1, and the upper surface of the electric lifting rod 2 is welded and fixed to the lower surface of the arm support frame 3, and a horizontal fixing plate 9 for supporting fingers is slidably provided on one side of the arm support frame 3, and the lower part of the vertical support rod 6 and the lower part of the horizontal fixing plate 9 are fixed with two T-shaped sliding rods 13 for driving the vertical support rod 6 and the horizontal fixing plate 9 to move, and a T-shaped sliding groove 14 for sliding the T-shaped sliding rod 13 is provided on the side wall of the arm support frame 3 on one side of the vertical support rod 6, and two knobs 8 for tightening and fixing are threaded on the one side surface of the two T-shaped sliding rods 13, and the knobs 8 are away from the T-shaped sliding groove 14, and the threaded surfaces of the two knobs 8 are tightly abutted and fixed to the inner surface of the T-shaped sliding groove 14 when tightened, and the upper surface of the vertical support rod 6 is welded and fixed to the lower surface of the movable seat 54 of the first clamping mechanism A5.
[0031] The first clamping mechanism A5 includes a rotating shaft 53 rotatably set in the U-shaped groove part on the upper part of the movable seat 54, and one end of the rotating shaft 53 movably passes through the outer wall of the groove on one side of the movable seat 54, and the other end of the rotating shaft 53 is embedded in the inner wall on the other side of the movable seat 54, and the outer surface of the rotating shaft 53 that movably passes through one side of the outer wall of the movable seat 54 is fixedly connected to the inner surface of the ratchet 52, and the ratchet 52 and the pawl 51 are engaged with each other on the side away from the fixed end, and the fixed end of the pawl 51 is fixedly connected to the surface of the first cross bar 7 on the same side of the ratchet 52, and the inner surface of the through hole at the end of the first cross bar 7 away from the second cross bar 11 is fixed to the outer surface of the rotating shaft 53.
[0032] The end of the first cross bar 7 away from the first clamping mechanism A5 is rotatably connected to the end of the second cross bar 11 away from the movable column 404, and a second clamping mechanism B12 for limiting is provided on the surface of one side of the connection position between the second cross bar 11 and the first cross bar 7. The second clamping mechanism B12 has the same structure as the first clamping mechanism A5 and the same installation method.
[0033] The ratchet 52 and the pawl 51 of the second clamping mechanism B12 are respectively fixed to the outer surfaces on the same side of the connecting parts of the first cross bar 7 and the second cross bar 11. The ratchet 52 is fixed to the outer surface of the first cross bar 7, and the outside of the ratchet 52 is also fixed to a rope drum 10 for connecting the second steel wire rope 414. The pawl 51 is fixed to the outer surface of the second cross bar 11 through the rotating shaft 53 of the second clamping mechanism B12, and the inner surface of the pawl 51 is rotatably connected to the outer surface of the rotating shaft 53. The ratchet 52 of the second clamping mechanism B12 and the pawl 51 of the second clamping mechanism B12 are arranged to engage with each other.
[0034] The clamping mechanism 4 includes a movable column 404 that movably passes through the second cross bar 11 on the side away from the first cross bar 7, the upper outer surface of the movable column 404 is movably arranged to pass through the upper clamp plate 401, and the lower surface of the upper clamp plate 401 is welded and fixed to the upper surface of the second cross bar 11 located on the same side of the movable column 404, the lower surface of the movable column 404 is welded and fixed to the upper surface of the lower clamp plate 403, and springs 402 for longitudinal movement of the movable column 404 are fixed between the four corners of the lower surface of the upper clamp plate 401 and the four corners of the upper surface of the lower clamp plate 403, and the elastic force of the spring 402 is appropriate, two symmetrical rope clamps 411 are welded and fixed to the upper surface of the lower clamp plate 403, and the rope clamps 411 are located on the outer edges of both sides of the upper surface of the lower clamp plate 403, and the two rope clamps 411 are respectively fixed to one end of the two corresponding second steel ropes 414.
[0035] The lower surface of the lower splint 403 is welded and fixed to the connecting block 408, and the lower surface of the connecting block 408 is welded and fixed to the upper surface of the U-shaped ring 406 made of elastic material, so that the upper part of the movable column 404 and the upper part of the U-shaped ring 406 remain in a vertical state, and a plurality of slots 413 of the same shape are opened on the inner surface of the lower part of the U-shaped ring 406, and are distributed in an array on the inner surface of the lower part of the U-shaped ring 406, and a strip rubber plug 407 for easy disassembly is inserted into the inside of the slot 413, and the shape of the strip rubber plug 407 is consistent with the slot 413 and they limit each other.
[0036] Two symmetrical pulleys 412 are fixedly provided on the outer surface of the movable column 404, and two symmetrical pulleys 412 are also fixedly provided on the lower surfaces of both sides of the upper clamping plate 401. The four pulleys 412 are divided into two groups and the two groups of pulleys 412 are arranged at ninety degrees. Both ends of the first steel wire rope 409 pass through one group of pulleys 412 and are slidably arranged on the outer surface of the pulleys 412. The two second steel wire ropes 414 pass through the other group of pulleys 412 respectively and are also slidably arranged on the outer surface of the pulleys 412. In order to better move the movable column 404 longitudinally, the rope hole 410, the first steel wire rope 409, the pulley 412, and the two rope clamps 405 are all on the same axis.
[0037] The clamping mechanism 4 also includes a rope hole 410 fixed on the upper surface of the movable column 404 for the first steel wire rope 409 to pass through. After the first steel wire rope 409 passes through the rope hole 410, both ends of the first steel wire rope respectively pass through the outer surface of the corresponding pulley 412, and then are fixed to two corresponding rope clamps 405, and the lower surfaces of the two rope clamps 405 are respectively welded and fixed to the two sides of the outer surface of the U-shaped ring 406.
[0038] The electric lifting rod 2, ratchet 52, pawl 51 and spring 402 of the device are all prior art and will not be described in detail here.
[0039] Principle and process of this utility model:
[0040] The device is placed beside the bed or the examination instrument through the base 1. The doctor adjusts the arm support frame 3 to the required height through the electric lifting rod 2, and then asks the patient to lie on the bed, stretch out his arm and place it on the upper surface of the arm support frame 3 of the device. Then, the position of the horizontal fixing plate 9 is adjusted through the T-shaped slide bar 13 and the T-shaped slide groove 14, so that the horizontal fixing plate 9 is against the patient's bent fingers or fists to play a role in horizontally fixing the arm, and then the knob 8 on one side of the T-shaped slide bar 13 is tightened to prevent the horizontal fixing plate 9 from moving;
[0041] The vertical support rod 6 is then moved to a position where the clamping mechanism 4 moves along the patient's arm direction to a position where the examination part is not affected. After the position is roughly adjusted, the first cross bar 7 is moved downward by the rotating shaft 53 of the first clamping mechanism A5, and the second cross bar 11 rotatably connected to the first cross bar 7 is driven to move downward. At the same time, the movable column 404 movably penetrated by one end of the second cross bar 11 loses the pulling force of the rope drum 10 fixed on one side of the first cross bar 7 on the second steel wire rope 414, so that the upper clamping plate 401 movably penetrated by the upper part of the movable column 404 and the lower clamping plate 403 fixed at the lower part drive the movable column 404 to move downward under the rebound force of the spring 402. The movable column 404 moves downward and drives the U-shaped ring 406 of the elastic material to move downward at the same time. When the movable column 404 and the U-shaped ring 406 move downward at the same time, the first steel wire rope 409 releases the pulling force on the U-shaped ring 406, so that the U-shaped ring 406 is tightened inward (similar to the opening and closing method of an umbrella);
[0042] The clamping degree of the U-shaped ring 406 can be adjusted by adjusting the rotation of the first cross bar 7 and the second cross bar 11, and the first cross bar 7 is limited by the engagement and clamping between the ratchet 52 and the pawl 51 of the first clamping mechanism A5, while the rotational connection position of the second cross bar 11 and the first cross bar 7 is limited by the engagement between the ratchet 52 and the pawl 51 of the second clamping mechanism B12.
[0043] After the U-shaped ring 406 fixes the patient's arm, the knob 8 on one side of the vertical support rod 6 is tightened to press against the inner surface of the T-shaped slide groove 14, so that the vertical support rod 6 cannot move laterally. During the doctor's examination, it is necessary to ensure that the patient's blood vessels are not squeezed. Therefore, the doctor can pull out a part of the strip rubber plug 407 inside the U-shaped ring 406 so that the inner wall of the U-shaped ring 406 will not squeeze the patient's blood vessels while fixing the patient's arm, thereby improving the accuracy of the examination and the quality of the ultrasonic image.
[0044] After the examination is completed, it is only necessary to move the first cross bar 7 and the second cross bar 11 upwards, so that the U-shaped ring 406 moves upwards and opens the inner walls on both sides to release the patient's arm, and move the transverse fixing plate 9 to its original position.
[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0046] 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 fistula ultrasound fixing frame, characterized in that: The invention comprises a base (1) placed on the ground, an arm support frame (3) being fixedly provided at the upper end of the base (1) via an electric lifting rod (2), a horizontal fixing plate (9) being slidably provided on one side of the arm support frame (3), a vertical support rod (6) being slidably provided on the same side of the arm support frame (3) and the horizontal fixing plate (9), and a first clamping mechanism A (5) being provided on the upper part of the vertical support rod (6); The first clamping mechanism A (5) comprises a movable seat (54) fixedly mounted on the upper part of the vertical support rod (6), a ratchet (52) being rotatably mounted on one side of the movable seat (54), the ratchet (52) being engaged with a ratchet pawl (51), and the ratchet pawl (51) being fixedly mounted on the surface of one side of the first crossbar (7); The first cross bar (7) is connected to a second cross bar (11) at one end away from the first clamping mechanism A (5), and a second clamping mechanism B (12) is provided on one side of the connection position between the second cross bar (11) and the first cross bar (7), and the second clamping mechanism B (12) has the same structure as the first clamping mechanism A (5); The clamping mechanism (4) comprises a movable column (404) movably passing through one side of the second cross bar (11); an upper clamp (401) movably passing through the upper part of the movable column (404); a lower clamp (403) fixedly connected to the lower surface of the movable column (404); the lower surface of the upper clamp (401) is fixedly connected to one side of the second cross bar (11) and a spring (402) is fixedly connected between the upper surface of the lower clamp (403); a connecting block (408) for connecting to the middle part of the upper surface of a U-shaped ring (406) is fixedly provided in the middle part of the lower surface of the lower clamp (403); a plurality of slots (413) distributed in an array are provided on the inner surface of the U-shaped ring (406); a strip rubber plug (407) is detachably inserted into the inside of the slot (413).
2. The internal fistula ultrasound fixing frame according to claim 1, characterized in that: The first clamping mechanism A (5) comprises a first crossbar (7) at one end away from the second clamping mechanism B (12) and having a rotating shaft (53) movably passing through it, and the rotating shaft (53) movably passing through the upper part of the movable seat (54).
3. The internal fistula ultrasound fixing frame according to claim 1, characterized in that: The second clamping mechanism B (12) comprises a ratchet (52) of the second clamping mechanism B (12) fixed on the outer surface of one side of the first cross bar (7); the ratchet (52) of the second clamping mechanism B (12) is engaged with a pawl (51) of the second clamping mechanism B (12); an inner surface of one side of the pawl (51) of the second clamping mechanism B (12) is fixedly connected to an outer surface of a rotating shaft (53) of the second clamping mechanism B (12); and the rotating shaft (53) of the second clamping mechanism B (12) is fixedly arranged on the outer surface of one side of the second cross bar (11).
4. The internal fistula ultrasound fixing frame according to claim 1, characterized in that: The clamping mechanism (4) also includes a rope hole (410) fixedly arranged on the upper surface of the movable column (404), a first steel wire rope (409) being movably inserted through the through hole of the rope hole (410), two ends of the first steel wire rope (409) respectively passing through a pulley (412) and fixedly connected to two rope clamps (405), and the two rope clamps (405) are respectively fixedly arranged on both sides of the outer surface of the U-shaped ring (406).
5. The internal fistula ultrasound fixing frame according to claim 1, characterized in that: Four pulleys (412) are fixedly arranged on the outer surface of the movable column (404) and the lower surfaces on both sides of the upper clamping plate (401), respectively. The four pulleys (412) are divided into two groups and are symmetrically arranged with each other. The surface of one group of pulleys (412) is slidably arranged with the first steel wire rope (409), and the surface of the other group of pulleys (412) is slidably arranged with the two second steel wire ropes (414), respectively. The rope hole (410), the first steel wire rope (409), the pulley (412), and the rope clamp (405) are located on the same axis.
6. The internal fistula ultrasound fixing frame according to claim 5, characterized in that: Two rope clamps (411) are symmetrically fixed on both sides of the upper surface of the lower clamping plate (403), and the two rope clamps (411) are respectively fixed to one end of two second steel wire ropes (414) passing through the pulley (412), and the other ends of the two second steel wire ropes (414) are fixed to the rope drum (10).
7. The internal fistula ultrasound fixing frame according to claim 6, characterized in that: One side surface of the rope drum (10) is fixedly connected to one side surface of the first cross bar (7).
8. The internal fistula ultrasound fixing frame according to claim 1, characterized in that: The vertical support rod (6) and the lower part of the horizontal fixing plate (9) are both fixedly provided with a T-shaped sliding rod (13), and a T-shaped sliding groove (14) is opened on one side of the arm support frame (3). The T-shaped sliding rod (13) is slidably arranged in the T-shaped sliding groove (14), and two knobs (8) are respectively threadedly arranged on the surface of the two T-shaped sliding rods (13) on the side away from the T-shaped sliding groove (14), and the threaded surfaces of the two knobs (8) are in contact with the inner surface of the T-shaped sliding groove (14).