Afterloading cystometry ultrasound probe fixation device
By designing a fixing device for the horizontal bar, vertical bar, and rotating bar, the problem of unstable ultrasound probe fixation was solved, achieving multi-angle adjustment and stable fixation. This adapts to the differences in body shape and bladder position among different patients, ensuring the accuracy of bladder urine volume measurement and the non-invasiveness of the treatment process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GENERAL HOSPITAL OF NUCLEAR IND
- Filing Date
- 2025-03-21
- Publication Date
- 2026-07-21
AI Technical Summary
Existing ultrasound probe fixation methods are prone to detachment during bladder urine volume measurement, making it difficult to achieve effective fixation and angle adjustment, thus affecting measurement accuracy.
A fixing device including a crossbar, a vertical bar, and a rotating bar was designed. The ultrasound probe is connected through a spherical shaft. Combined with a clamping mechanism and screw adjustment, multi-angle and multi-position adjustment can be achieved to ensure that the probe is fixed to the bed.
It achieves stable fixation of the ultrasound probe, adapts to differences in patient body size and bladder position, and ensures measurement accuracy and non-invasive treatment process.
Smart Images
Figure CN224523124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a fixation device for an ultrasound probe for measuring bladder urine volume in afterloading therapy. Background Technology
[0002] In brachytherapy, monitoring bladder urine volume is crucial for ensuring treatment accuracy and reducing complications. The bladder is adjacent to the uterus and cervix, and its fullness can cause changes in the position of surrounding organs, thus affecting the pre-defined range of the radiation source and target area. Overfilling of the bladder may displace the uterus and cervix, leading to insufficient target dose or increased dose to surrounding organs (such as the bladder, small intestine, and rectum). In clinical treatment, moderate bladder fullness is beneficial for protecting the intestines; therefore, a certain amount of saline is injected through a catheter during brachytherapy to effectively reduce intestinal side effects. However, as the radiation source decays and treatment time increases—sometimes as long as 25–35 minutes—the urine volume drained from the bladder after treatment can increase by 30%–70% compared to the pre-treatment volume, enough to cause changes in the position of surrounding organs and thus affect the treatment outcome. In such cases, measurement helps to determine urine volume in real time.
[0003] The ultrasound probe used for measuring bladder urine volume in brachytherapy needs to be closely fitted to the skin to prevent displacement during measurement. The existing fixation method mainly uses medical tape for binding and fixation, but the tape is prone to falling off when sweating or after prolonged use, which is not conducive to the effective fixation of the ultrasound probe, and it is also not easy to adjust the ultrasound probe to a suitable angle and position.
[0004] Therefore, we propose a fixation device for the ultrasound probe used to measure bladder urine volume during afterloading therapy to address the aforementioned issues. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fixation device for an ultrasound probe used to measure bladder urine volume in afterloading therapy.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] The ultrasound probe fixing device for measuring bladder urine volume in afterloading therapy includes a crossbar with a connecting rod on it. One end of the connecting rod is slidably sleeved on the crossbar, and the other end of the connecting rod is equipped with an ultrasound probe connecting mechanism. Both ends of the crossbar are equipped with uprights, and the bottom of the uprights is equipped with a clamping mechanism. The top of the uprights is equipped with a damped rotating rod, and both ends of the crossbar are slidably sleeved and connected to the two rotating rods respectively.
[0008] Preferably, a first ring block is fixed at one end of the connecting rod near the crossbar. The first ring block is slidably sleeved on the crossbar. A first screw is matched to the first ring block. The first screw thread passes through the first ring block and abuts against the side wall of the crossbar.
[0009] Preferably, the ultrasonic probe connection mechanism includes an ultrasonic probe body and a probe fixing sleeve. The probe fixing sleeve is snapped onto the outside of the ultrasonic probe body and is connected to one end of the connecting rod via a spherical shaft.
[0010] Preferably, the clamping mechanism includes an L-shaped lifting clamping block, the upper end of which is slidably connected to the bottom of the upright, and a horizontal clamping block is fixed horizontally at the bottom of the upright. The horizontal clamping block is parallel to the lower end of the L-shaped lifting clamping block. A second screw is provided on the side of the upright, and the second screw thread passes through the side of the upright and abuts against the upper side of the L-shaped lifting clamping block.
[0011] Preferably, each end of the crossbar is fixed with a second ring block, the two second ring blocks are slidably sleeved on the two rotating rods respectively, and the sides of the two second ring blocks are provided with a third screw, the third screw threaded through the second ring block and abutting against the side of the rotating rod.
[0012] Preferably, a fourth screw may also be provided on the top side of the upright, and the upright and the rotating rod are rotatably connected by a damping shaft. The fourth screw is threaded through the upright and abuts against the end face of the damping shaft.
[0013] Preferably, a limiting mechanism may also be provided between the crossbar and the upright. The limiting mechanism includes a rotating sleeve, one end of which is rotatably connected to the top of the upright via a rotating shaft, and the rotating shaft is coaxially aligned with the damping shaft. A telescopic rod is slidably provided on the rotating sleeve, the top of which is fixedly connected to the end face of the crossbar. A fifth screw is matched on the side of the rotating sleeve, the fifth screw threaded through the rotating shaft and abutting against the end face of the damping shaft. Several circular holes are evenly provided on the telescopic rod, through which the fifth screw can pass and position and limit the telescopic rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention features a horizontal bar, two vertical bars, and a corresponding rotating bar. A connecting rod is mounted on the horizontal bar, and a probe fixing sleeve is connected via a spherical shaft. The probe fixing sleeve holds the ultrasound probe body, allowing for fixation to the hospital bed. This enables lateral and longitudinal adjustment, as well as multi-angle adjustment, effectively addressing differences in patient body shape and bladder position. Adjustment is tailored to the patient's body type, ensuring accurate measurement after fixation. Furthermore, the ultrasound probe body is connected to the afterloading treatment bed, allowing for omnidirectional position adjustment and easy disassembly. It effectively monitors bladder capacity during treatment, providing real-time, non-invasive monitoring without interfering with brachytherapy. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is an isometric view of the present invention;
[0018] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;
[0019] Figure 3 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0020] Figure 4 This is a schematic diagram of another embodiment of the present invention;
[0021] Figure 5 for Figure 4 A magnified view of a section at point B.
[0022] In the diagram: 1. Horizontal bar; 2. Connecting rod; 3. Vertical bar; 4. Rotating rod; 5. First screw; 6. Ultrasonic probe body; 7. Probe fixing sleeve; 8. L-shaped lifting clamping block; 9. Horizontal clamping block; 10. Second screw; 11. Third screw; 12. Fourth screw; 13. Rotating sleeve rod; 14. Telescopic rod; 15. Fifth screw; 16. Round hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] Example 1
[0026] Reference Figure 1 and Figure 2The ultrasound probe fixing device for measuring bladder volume in afterloading therapy includes a horizontal bar 1, a connecting rod 2 on the horizontal bar 1, one end of the connecting rod 2 being slidably sleeved on the horizontal bar 1, and the other end of the connecting rod 2 being equipped with an ultrasound probe connecting mechanism. Vertical rods 3 are located at both ends of the horizontal bar 1, with clamping mechanisms at the bottom of the vertical rods 3 and damped rotating rods 4 at the top of the vertical rods 3. The two ends of the horizontal bar 1 are slidably sleeved and connected to the two rotating rods 4 respectively. The overall shape of the horizontal bar 1, the two vertical rods 3, and the corresponding rotating rods 4 is an inverted U-shape.
[0027] As a technical optimization of this utility model, a first ring block is fixed to one end of the connecting rod 2 near the crossbar 1. The first ring block is slidably sleeved on the crossbar 1, and a first screw 5 is matched to the first ring block. The first screw 5 is threaded through the first ring block and abuts against the side wall of the crossbar 1. The connecting rod 2 can slide left and right on the crossbar 1, and can also rotate up and down. The first screw 5 serves to position and fix the connecting rod 2.
[0028] For the above example, those skilled in the art should know that when implementing the above technical solution, a rotating block is coaxially fixed at one end of the first screw 5, and the rotating block facilitates the rotation operation of the first screw 5.
[0029] As a technical optimization of this utility model, the ultrasonic probe connection mechanism includes an ultrasonic probe body 6 and a probe fixing sleeve 7. The probe fixing sleeve 7 is snapped onto the outside of the ultrasonic probe body 6 and is connected to one end of the connecting rod 2 via a spherical shaft. The probe fixing sleeve 7 can effectively fix the ultrasonic probe body 6, and the spherical shaft allows the ultrasonic probe body 6 to be adjusted in all directions, facilitating the use of the ultrasonic probe body 6.
[0030] For the above example, those skilled in the art should know that when implementing the above technical solution, the probe fixing sleeve 7 is effectively matched with the ultrasonic probe body 6. The probe fixing sleeve 7 is provided with multiple slots that match the ultrasonic probe body 6. The corresponding slots can be used for the power cord to pass through, as well as for exposing the buttons, ends, etc. of the ultrasonic probe body 6.
[0031] As a technical optimization of this utility model, the clamping mechanism includes an L-shaped lifting clamping block 8. The upper end of the L-shaped lifting clamping block 8 is slidably connected to the bottom of the upright 3. A horizontal clamping block 9 is horizontally fixed to the bottom of the upright 3. The horizontal clamping block 9 is parallel to the lower end of the L-shaped lifting clamping block 8. A second screw 10 is provided on the side of the upright 3. The second screw 10 is threaded through the side of the upright 3 and abuts against the upper side of the L-shaped lifting clamping block 8. The L-shaped lifting clamping block 8 can move up and down, and cooperates with the corresponding horizontal clamping block 9 to clamp objects in between. The L-shaped lifting clamping block 8 and the horizontal clamping block 9 can clamp the edge of the existing hospital bed. The second screw 10 is used to position the L-shaped lifting clamping block 8.
[0032] For the above example, those skilled in the art should know that when implementing the above technical solution, the length of the crossbar 1 is longer than the existing width of the hospital bed, which can ensure that the two L-shaped lifting clamping blocks 8, together with the corresponding transverse clamping blocks 9, can be clamped to the two sides of the hospital bed respectively.
[0033] For the above example, those skilled in the art should know that when implementing the above technical solution, a rotating block is also coaxially fixed at one end of the second screw 10, and the rotating block facilitates the rotation operation of the second screw 10.
[0034] As a technical optimization of this utility model, two second ring blocks are fixed at both ends of the crossbar 1. The two second ring blocks are slidably sleeved on the two rotating rods 4, and each of the two second ring blocks is provided with a third screw 11 on its side. The third screw 11 is threaded through the second ring block and abuts against the side of the rotating rod 4. The third screw 11 can position the rotating rod 4 and ensure the stability of the rotating rod 4.
[0035] For the above example, those skilled in the art should know that when implementing the above technical solution, a rotating block is also coaxially fixed at one end of the third screw 11, and the rotating block facilitates the rotation operation of the third screw 11.
[0036] The working principle is as follows:
[0037] The ultrasound probe body 6 of this device can be cleverly integrated with the brachytherapy bed, allowing for omnidirectional position adjustment and easy disassembly. It effectively monitors bladder capacity during treatment, providing real-time, non-invasive monitoring without interfering with brachytherapy. By clamping the two L-shaped lifting clamps 8 with corresponding transverse clamps 9 to the sides of the bed, the entire device is mounted. The height of the crossbar 1 is adjusted according to height requirements, and the angle of the rotating rod 4 or the connecting rod 2 is adjusted according to angle requirements. Simultaneously, the spherical shaft allows for omnidirectional rotation of the ultrasound probe body 6, ultimately completing the position adjustment of the ultrasound probe body 6. This facilitates its use after fixation and subsequent measurement operations. This device effectively accommodates differences in patient body shape and bladder position, enabling lateral and longitudinal adjustments as well as multi-angle adjustments. It can be adjusted according to the patient's body shape to ensure accurate measurement after fixation.
[0038] Example 2
[0039] The difference between this embodiment and the above embodiments is that:
[0040] Reference Figure 3 The top side of the upright 3 can also be equipped with a fourth screw 12. The upright 3 and the rotating rod 4 are rotatably connected through a damping shaft. The fourth screw 12 is threaded through the upright 3 and abuts against the end face of the damping shaft.
[0041] For the above example, those skilled in the art should know that when implementing the above technical solution, a rotating block is also coaxially fixed at one end of the fourth screw 12, and the rotating block facilitates the rotation operation of the fourth screw 12.
[0042] The working principle is as follows:
[0043] After the rotation adjustment, the rotating rod 4 can be fixed by tightening the fourth screw 12 to ensure that the rotating rod 4 cannot be easily rotated.
[0044] Example 3
[0045] The difference between this embodiment and the above embodiments is that:
[0046] Reference Figure 4 and Figure 5 A limiting mechanism can also be provided between the crossbar 1 and the upright 3. The limiting mechanism includes a rotating sleeve 13. One end of the rotating sleeve 13 is rotatably connected to the top of the upright 3 through a rotating shaft, and the rotating shaft is coaxially aligned with the damping shaft. A telescopic rod 14 is slidably provided on the rotating sleeve 13. The top of the telescopic rod 14 is fixedly connected to the end face of the crossbar 1. A fifth screw 15 is matched on the side of the rotating sleeve 13. The fifth screw 15 is threaded through the rotating shaft and abuts against the end face of the damping shaft. Several circular holes 16 are evenly provided on the telescopic rod 14. The fifth screw 15 can pass through the circular holes 16 and position and limit the telescopic rod 14.
[0047] For the above example, those skilled in the art should know that when implementing the above technical solution, a rotating block is also coaxially fixed at one end of the fifth screw 15, and the rotating block facilitates the rotation operation of the fifth screw 15.
[0048] For the above example, those skilled in the art should know that when implementing the above technical solution, the telescopic rod 14 may be provided with several scales at equal intervals on its side to locate the position of the circular hole 16, so that the fifth screw 15 can pass through the circular hole 16.
[0049] The working principle is as follows:
[0050] The crossbar 1 can be positioned by the telescopic rod 14. After the crossbar 1 is raised or lowered, the fifth screw 15 passes through the corresponding circular hole 16 to position the telescopic rod 14, which in turn positions the crossbar 1. When the crossbar 1 moves up or down, the telescopic rod 14 also moves up or down with it. Simultaneously, when the rotating rod 4 is rotated, the corresponding telescopic rod 14 and rotating sleeve 13 also rotate. After rotational adjustment, the fifth screw 15 can be tightened to position the rotating rod 4. Through the above operations, it can be seen that the fifth screw 15 can achieve both positioning of the crossbar 1 after raising or lowering and positioning of the rotating rod 4 after rotation.
[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A device for fixing an ultrasound probe for measuring bladder urine volume in afterloading therapy, comprising a crossbar (1), characterized in that, The crossbar (1) is provided with a connecting rod (2). One end of the connecting rod (2) is slidably sleeved on the crossbar (1). The other end of the connecting rod (2) is provided with an ultrasonic probe connecting mechanism. Both ends of the crossbar (1) are provided with uprights (3). The bottom of the uprights (3) is provided with a clamping mechanism. The top of the uprights (3) is provided with a damping rotating rod (4). The two ends of the crossbar (1) are slidably sleeved and connected to the two rotating rods (4) respectively.
2. The ultrasound probe fixation device for measuring bladder urine volume in afterloading therapy according to claim 1, characterized in that, The connecting rod (2) has a first ring block fixed at one end near the crossbar (1). The first ring block is slidably sleeved on the crossbar (1). The first ring block is matched with a first screw (5). The first screw (5) is threaded through the first ring block and abuts against the side wall of the crossbar (1).
3. The ultrasound probe fixation device for measuring bladder urine volume in afterloading therapy according to claim 1, characterized in that, The ultrasonic probe connection mechanism includes an ultrasonic probe body (6) and a probe fixing sleeve (7). The probe fixing sleeve (7) is snapped onto the outside of the ultrasonic probe body (6). The probe fixing sleeve (7) is connected to one end of the connecting rod (2) through a spherical shaft.
4. The ultrasound probe fixation device for measuring bladder urine volume in afterloading therapy according to claim 1, characterized in that, The clamping mechanism includes an L-shaped lifting clamping block (8), the upper end of which is slidably connected to the bottom of the upright (3), and a horizontal clamping block (9) is horizontally fixed at the bottom of the upright (3). The horizontal clamping block (9) is parallel to the lower end of the L-shaped lifting clamping block (8). A second screw (10) is provided on the side of the upright (3). The second screw (10) is threaded through the side of the upright (3) and abuts against the upper side of the L-shaped lifting clamping block (8).
5. The ultrasound probe fixation device for measuring bladder urine volume in afterloading therapy according to claim 1, characterized in that, The two ends of the crossbar (1) are fixed with second ring blocks. The two second ring blocks are slidably sleeved on the two rotating rods (4). The sides of the two second ring blocks are provided with third screws (11). The third screws (11) thread through the second ring blocks and abut against the sides of the rotating rods (4).
6. The ultrasound probe fixation device for measuring bladder urine volume in afterloading therapy according to claim 1, characterized in that, The top side of the upright (3) may also be provided with a fourth screw (12). The upright (3) and the rotating rod (4) are rotatably connected by a damping shaft. The fourth screw (12) is threaded through the upright (3) and abuts against the end face of the damping shaft.
7. The ultrasound probe fixation device for measuring bladder urine volume in afterloading therapy according to claim 6, characterized in that, A limiting mechanism may also be provided between the crossbar (1) and the upright (3). The limiting mechanism includes a rotating sleeve (13). One end of the rotating sleeve (13) is rotatably connected to the top of the upright (3) through a rotating shaft, and the rotating shaft is coaxially aligned with the damping shaft. A telescopic rod (14) is slidably provided on the rotating sleeve (13). The top of the telescopic rod (14) is fixedly connected to the end face of the crossbar (1). A fifth screw (15) is matched on the side of the rotating sleeve (13). The fifth screw (15) is threaded through the rotating shaft and abuts against the end face of the damping shaft. Several round holes (16) are evenly provided on the telescopic rod (14). The fifth screw (15) can pass through the round holes (16) and position and limit the telescopic rod (14).