A mechanical device for full abdominal swing assisted bowel preparation and its functional seat

Abstract

The utility model relates to medical technology field, concretely relates to a kind of mechanical device of full abdomen swing auxiliary intestinal tract preparation, the mechanical device includes support frame, movement mechanism, controller and cushion, under the instruction of controller, movement mechanism can drive cushion in horizontal plane with specified frequency, amplitude movement carries out linear, elliptical and eight-character shape and generates compound trajectory movement, promote the gastrointestinal movement of user, and then promote intestinal tract preparation quality;The mechanical device of the utility model, the structure is reasonable, can accelerate the discharge of gastrointestinal contents;Meanwhile the mechanical device of the utility model, size is adjustable, can be set to multiple shapes according to needs, can be used at home, hospital, with broad application prospect.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, specifically to a mechanical device and its functional seat for assisting bowel preparation with full abdominal swing. Background Technology

[0002] Colonoscopy is a primary method for screening, diagnosing, and treating colorectal diseases. It is estimated that the number of colonoscopy procedures performed in my country in 2022 was approximately 20-30 million, with an average annual compound growth rate exceeding 10%. The effectiveness and safety of colonoscopy diagnosis and treatment are closely related to the quality of the patient's bowel preparation before the procedure. Good bowel preparation can improve the detection rate of lesions such as adenomas and serrated polyps, reduce the occurrence of complications such as perforation, and protect the safety of endoscopic equipment. Conversely, inadequate bowel preparation will severely affect the operator's field of vision, leading to decreased lesion detection rates, missed diagnoses, prolonged operation time, and examination failure. Current research data shows that approximately 10%-20% of people undergoing colonoscopy have inadequate bowel preparation, and the proportion is as high as 30% in high-risk patients such as the elderly, obese individuals, and those with constipation. How to improve the quality of bowel preparation is an urgent problem to be solved.

[0003] Currently, the main interventions for improving the quality of bowel preparation include selecting appropriate bowel cleansing agents, dietary restrictions, and intraoperative rescue enemas. Oral bowel cleansing agents are an essential measure for bowel preparation. Commonly used oral bowel cleansing agents include polyethylene glycol (PEG) electrolyte solution and compound sodium picosulfate. The effectiveness of oral bowel cleansing agents is closely related to the amount of water consumed. Taking PEG as an example, relevant guidelines at home and abroad recommend that patients take 3-4L of PEG in divided doses 8-12 hours before colonoscopy. In clinical practice, because patients need to drink a large amount of water mixed with PEG powder, this may cause discomfort such as nausea, vomiting, and abdominal pain. In addition, PEG has a poor taste, and the large dosage makes it difficult for many patients to tolerate, seriously affecting the patient's experience of colonoscopy and the quality of bowel preparation.

[0004] Previous researchers have developed various patents to improve the quality of bowel preparation. For example, utility model patent CN115067504A discloses a special medical food for bowel preparation, which, when consumed 24 hours before preparation, can increase satiety, reduce intestinal residue, provide necessary nutrients and electrolytes, promote bowel cleansing, improve the quality of bowel preparation, and shorten preparation time. Utility model patent CN115025203A provides a traditional Chinese medicine composition for bowel preparation, which has a better cleansing effect than PEG and fewer adverse reactions during administration. Utility model patent CN217612059U also discloses a quantitative liquid container for bowel preparation, featuring temperature monitoring and voice prompts for convenient bowel preparation. However, regardless of the medication used, during bowel preparation, most patients experience varying degrees of adverse reactions such as bloating, abdominal pain, nausea, vomiting, anal discomfort, intestinal spasms, fatigue, and even collapse due to ingesting large amounts of the solution mixed with PEG powder. Therefore, how to improve bowel preparation measures and enhance patient tolerance and experience while ensuring the quality of bowel preparation are urgent clinical issues to be addressed. Utility Model Content

[0005] To address the aforementioned technical problems, the primary objective of this utility model is to provide a mechanical device for assisting bowel preparation with full abdominal swinging. The device includes a support frame 1, a motion mechanism 2, a controller 3, and a seat cushion 4. The motion mechanism 2 is a cross-shaped electric slide module, composed of an orthogonally stacked X-axis first slide 201 and a Y-axis second slide 202. The X-axis first slide 201 is fixed to the bottom of the support frame 1, the Y-axis second slide is mounted on the X-axis first slide 201, and the seat cushion 4 is mounted on the Y-axis second slide 202. The X-axis first slide 201 drives the Y-axis second slide 202 to move along the X-axis, and the Y-axis second slide 202 drives the seat cushion 4 to move along the Y-axis. The controller 3 is electrically connected to both the X-axis first slide 201 and the Y-axis second slide 202, receiving signals and controlling their movement.

[0006] Preferably, the X-axis first slide 201 and the Y-axis second slide 202 adopt an interchangeable modular structure, including: a rectangular base 203, with support plates 211 respectively provided at both ends of the wide side, bearings 210 passing through the support plates 211 at both ends and located in the middle of the support plates 211 at both ends, and two parallel linear guide rails 204 provided on the rectangular base 203; a transmission assembly: a ball screw 205 is horizontally mounted between the support plates 211 through the bearings 210, one end of which is fixed to a driven synchronous wheel 216, and a screw nut 206 is fixed inside the moving block 208 and meshes with the screw; the moving block 208, the bottom of which is slidably connected to the linear guide rails 204 through two linear sliders 207; a drive unit: a motor 212 is fixed at the end of the base 203, the output shaft is connected to the driving synchronous wheel 214, and drives the driven synchronous wheel 216 to rotate through the synchronous belt 215, thereby driving the ball screw 205 to rotate.

[0007] Preferably, the top of the movable block 208 is provided with an extended connecting plate 209, which has a larger planar area than the movable block 208, is rigidly connected by bolts, and is provided with a standard mounting hole array.

[0008] Preferably, the movable block 208 has a hollow structure, with a bottom groove that precisely matches the linear slider 207 and is rigidly connected by bolts.

[0009] Preferably, two linear sliders 207 are symmetrically installed on the two linear guide rails 204. The bottom of the slider is provided with a V-shaped groove that matches the convex cross section of the guide rail, forming a self-centering anti-eccentric sliding pair.

[0010] Preferably, the controller 3 communicates with the motor driver 213 via an industrial bus and has a built-in multi-axis linkage algorithm that can generate composite trajectory motion commands including linear motion, elliptical motion, and figure-eight motion to control the operation of the two motors 212.

[0011] Preferably, the motor 212 is a closed-loop control system with an encoder resolution of ≥17 bits and a positioning accuracy of ≤0.02mm.

[0012] Preferably, the seat cushion 4 is composed of a base plate and a soft pad, the base plate is detachable, the soft pad is disposed on the base plate, and the surface is an ergonomic curved surface.

[0013] Preferably, the movement frequency of the seat cushion 4 is 0.5-10Hz, and the movement amplitude is 0.5-50mm.

[0014] The second objective of this utility model is to provide a functional chair that assists in bowel preparation by full abdominal swinging. The functional chair base contains the aforementioned mechanical device, and the chair is also equipped with a foldable hinge mechanism and an adjustable backrest 5.

[0015] The beneficial effects of this invention are as follows: This invention provides a mechanical device for assisting bowel preparation with full-abdominal swinging motion. Under the command of the controller 3, the motion mechanism 2 of this mechanical device can cause the seat cushion 4 to move in a horizontal plane at a specific frequency and amplitude, producing a composite trajectory of linear, elliptical, and figure-eight movements, thereby promoting the user's gastrointestinal motility and improving the quality of bowel preparation. The mechanical device of this invention has a reasonable structure and can accelerate the discharge of gastrointestinal contents; the size of the mechanical device is adjustable and can be configured into various shapes as needed, making it suitable for use at home and in hospitals, and has broad application prospects. Attached Figure Description

[0016] Figure 1 Front view of a mechanical device for assisting bowel preparation with full abdominal swinging.

[0017] Figure 2 Side view of a mechanical device for assisting bowel preparation with full abdominal swing.

[0018] Figure 3 Top view of a mechanical device for assisting bowel preparation with full abdominal swinging.

[0019] Figure 4 Front view of the cross slide structure

[0020] Note: 1. Support frame; 3. Controller; 4. Seat cushion;

[0021] 2. Motion mechanism; 201. First slide of X-axis; 202. Second slide of Y-axis; 203. Rectangular base; 204. Linear guide rail; 205. Lead screw; 206. Lead screw nut; 207. Linear slider; 208. Moving block; 209. Extended connecting plate; 210. Bearing; 211. Support plate; 212. Motor; 213. Motor driver; 214. Moving synchronous pulley; 215. Synchronous belt; 216. Driven synchronous pulley.

[0022] Figure 5 A schematic diagram comparing the cleanliness of intestinal effluent with that of a standard colorimetric sample in an in vitro intestinal preparation model simulation experiment.

[0023] Figure 6 Comparison of the cleanliness of intestinal effluent in different experimental groups in an in vitro intestinal preparation model simulation experiment. Note: Mode A: sitting position + back-and-forth swinging; Mode B: sitting position + left-right swinging; Mode C: sitting position + compound movement; Mode D: supine position + back-and-forth swinging; Mode E: supine position + left-right swinging; Mode F: supine position + compound movement.

[0024] Figure 7 Folding full-belly swing function seat

[0025] 11. Swinging device; 12. Backrest; 112. Motion mechanism; 113. Controller; 114. Seat cushion.

[0026] Figure 8 Full Abdominal Swing Bowel Preparation Assist Seat

[0027] 11. Swinging device; 12. Backrest; 13. Support base; 113. Controller; 114. Seat cushion. Detailed Implementation

[0028] The following embodiments further illustrate the above-described content of this utility model in detail. However, this should not be construed as limiting the scope of the above-described subject matter of this utility model to the following examples. All technologies implemented based on the above-described content of this utility model fall within the scope of this utility model.

[0029] Based on the shortcomings of the existing technology, this utility model will provide a new technical solution, which increases the oscillating and flushing effect of intestinal cleansing agents and other contents on the intestinal wall by whole-abdominal swinging, enhances intestinal peristalsis and defecation, improves the quality of intestinal preparation, shortens the patient's intestinal preparation time and reduces discomfort such as nausea and abdominal distension.

[0030] Example 1: Mechanical device for assisting bowel preparation by full abdominal swing

[0031] like Figure 1-4As shown, a mechanical device for assisting bowel preparation with full abdominal swinging is disclosed. The device includes a support frame 1, a motion mechanism 2, a controller 3, and a seat cushion 4. The motion mechanism 2 is a cross-shaped electric slide module, consisting of an orthogonally stacked X-axis first slide 201 and a Y-axis second slide 202. The X-axis first slide 201 is fixed to the bottom of the support frame 1, the Y-axis second slide is mounted on the X-axis first slide 201, and the seat cushion 4 is mounted on the Y-axis second slide 202. The X-axis first slide 201 drives the Y-axis second slide 202 to move along the X-axis, and the Y-axis second slide 202 drives the seat cushion 4 to move along the Y-axis. The controller 3 is electrically connected to both the X-axis first slide 201 and the Y-axis second slide 202, receives signals, and controls the movement of the X-axis first slide 201 and the Y-axis second slide 202. Preferably, the X-axis first slide 201 and the Y-axis second slide 202 adopt an interchangeable modular structure, including: a rectangular base 203, with support plates 211 respectively provided at both ends of the wide side, bearings 210 passing through the support plates 211 at both ends and located in the middle of the support plates 211 at both ends, and two parallel linear guide rails 204 provided on the rectangular base 203; a transmission assembly: a ball screw 205 is horizontally mounted between the support plates 211 through the bearings 210, with one end fixed to a driven synchronous pulley 216, and a screw nut 206 fixed inside the moving block 208 and meshing with the screw; the moving block 208, the bottom of which is slidably connected to the linear guide rails 204 through two linear sliders 207; a drive unit: a motor 212 is fixed to the end of the base 203, the output shaft is connected to the driving synchronous pulley 214, and drives the driven synchronous pulley 216 to rotate through the synchronous belt 215, thereby driving the ball screw 205 to rotate, and the top of the moving block 208 is provided with an extended connecting plate. 209, whose planar area is larger than that of the moving block 208, is rigidly connected by bolts and has a standard mounting hole array. The moving block 208 has a hollow structure, with a bottom groove that precisely fits with the linear slider 207 and is rigidly connected by bolts. Two linear guide rails 204 symmetrically mount two linear sliders 207. The bottom of the slider has a V-shaped groove that matches the convex cross section of the guide rail, forming a self-centering anti-eccentric sliding pair. The controller 3 communicates with the motor driver 213 through an industrial bus and has a built-in multi-axis linkage algorithm that can generate composite trajectory motion commands including linear motion, elliptical motion, and figure-eight motion to control the operation of the two motors 212. The motors 212 are closed-loop control systems with an encoder resolution ≥17 bits and a positioning accuracy ≤0.02mm. The seat cushion 4 consists of a base plate and a soft pad. The base plate is detachable, and the soft pad is set on the base plate with an ergonomic curved surface. The movement frequency of the seat cushion 4 is 0.5-10Hz, and the movement amplitude is 0.5-50mm. Example 2: Results of the in vitro intestinal preparation model simulation experiment.

[0032] The technical solution of this utility model can significantly improve the quality of bowel preparation while reducing the amount of water consumed by patients. Through in vitro bowel preparation model simulation experiments, using artificial intestinal fluid, porcine large intestine, colorectal models, prepared intestinal contents, and standard colorimetric cards, a designed prototype machine was used to test the effects of different oscillation frequencies (0, 0.5, 1, 3, 5, 10 Hz), amplitudes (0, 0.5, 5, 10, 30, 50 mm), as well as human posture (lying down, sitting) and oscillation direction (forward and backward, left and right, and combined movements) on the cleanliness of the bowel preparation.

[0033] The specific experimental steps are as follows:

[0034] (1) Infuse 250 ml of intestinal contents into the pig's large intestine, shake well, and then connect the inlet and outlet tubes;

[0035] (2) Place the pig large intestine in the human colon and rectum experimental model, adjust its position and fix it on the test prototype tray;

[0036] (3) According to the experimental group conditions, turn on the test machine and set the corresponding swing amplitude, frequency, direction and colon and rectum simulated posture, while adjusting the inflow speed to control the perfusion speed.

[0037] To simulate intestinal peristalsis in the human body, the intestinal tract was kneaded evenly every 30 seconds during the experiment. As the water flowed normally through the intestinal tract and slowly exited from the outlet, the enema fluid was collected in a beaker at the outlet end of the colorectal model. To simulate the relatively large volume of laxative used in human intestinal preparation (approximately 4-5 L), 15 samples (300 ml each) were collected consecutively in this experiment.

[0038] like Figure 5 As shown, after the experiment, the 15 collected effluent samples were compared with standard colorimetric standards to determine their turbidity, and photographs were taken for record-keeping. The final experimental results are attached. Figure 6 As shown in the figure, the control group without any swaying required 3900 mL of water to achieve a cleanliness score of at least 8. The swaying group, starting from the minimum frequency of 1 Hz and the minimum amplitude of 5 mm, gradually reduced the water volume required to achieve a cleanliness score of at least 8. When the swaying frequency was 5 Hz and the amplitude was 30 mm, the water volumes required to achieve a cleanliness score of at least 8 for swaying modes A (sitting, back-and-forth swaying), B (sitting, side-to-side swaying), C (sitting, combined back-and-forth and side-to-side swaying), D (supine, back-and-forth swaying), E (supine, side-to-side swaying), and F (supine, combined back-and-forth and side-to-side swaying) were 1800 ml, 1800 ml, 1200 ml, 1500 ml, 1500 ml, and 1200 ml, respectively. This indicates that different swaying modes at a certain frequency and amplitude are effective, but the supine position combined back-and-forth and side-to-side swaying mode performed better.

[0039] Example 3: A folding chair for assisting bowel preparation

[0040] like Figure 7 As shown, a portable, foldable, full-abdomen swing-assisted bowel preparation chair includes the aforementioned swing device 11 and backrest 12. The swing device 11 contains the mechanical device for full-abdomen swing-assisted bowel preparation described in Embodiment 1. Through the built-in controller 113, the motion mechanism 2 can be adjusted to achieve planar linear swing and elliptical trajectory composite motion of the seat cushion 114 within a frequency range of 0.5-10Hz and an amplitude range of 0.5-50mm. The backrest 12 features an ergonomic curved design, supports angle adjustment, and can be placed on chairs, sofas, or beds. Users can sit on the device or lie flat, allowing the abdomen to perform forward and backward, left and right linear or elliptical trajectory motions driven by the swing device 11.

[0041] Example 4: A full-abdomen swing chair for assisting bowel preparation

[0042] like Figure 8 As shown, a full-abdomen swing chair for assisting bowel preparation is described. The device includes a swing device 11, a backrest 12, and a support base 13. The swing device 12 is a mechanical device for assisting bowel preparation with full-abdomen swing as described in Embodiment 1. Under the adjustment of the internal controller 113, the swing device 11 can complete the movement in the form of linear swing, elliptical trajectory, etc., with an amplitude range of 0.5-50mm and a frequency of 0.5-10Hz in various directions on the plane of the platform. When a person sits on the seat cushion 114 of the device, the abdomen moves left and right, forward and backward, and elliptical trajectory under the action of the swing device 12.

[0043] In summary, this invention provides a mechanical device for assisting bowel preparation with full-abdominal swinging motion. Under the command of the controller 3, the motion mechanism 2 can cause the seat cushion 4 to move in a horizontal plane at a specific frequency and amplitude, producing a composite trajectory of linear, elliptical, and figure-eight movements, thereby promoting the user's gastrointestinal motility and improving the quality of bowel preparation. The mechanical device of this invention has a reasonable structure and can accelerate the discharge of gastrointestinal contents. The size of the mechanical device of this invention is adjustable and can be configured into various shapes as needed. It can be used at home and in hospitals and has broad application prospects.

[0044] Obviously, based on the above description of this utility model, and in accordance with the common technical knowledge and practices in the field, various other modifications, substitutions or alterations can be made without departing from the basic technical concept of this utility model.

[0045] In addition to the device described in this invention, appropriate walking and gentle abdominal massage during laxative administration can accelerate excretion. Furthermore, patients can use other instruments such as abdominal massagers and abdominal vibrators to increase intestinal peristalsis and improve bowel preparation.

Claims

1. A mechanical device for assisting bowel preparation by full-abdominal swinging, characterized in that, The mechanical device includes a support frame (1), a motion mechanism (2), a controller (3), and a seat cushion (4); the motion mechanism (2) is a cross-shaped electric slide module, which consists of an orthogonally and vertically superimposed X-axis first slide (201) and Y-axis second slide (202); the X-axis first slide (201) is fixed to the bottom of the support frame (1), the Y-axis second slide is mounted on the X-axis first slide (201), and the seat cushion (4) is mounted on the Y-axis second slide (202). The X-axis first slide (201) is used to drive the Y-axis second slide (202) to move along the X-axis, and the Y-axis second slide (202) drives the seat cushion (4) to move along the Y-axis; the controller (3) is electrically connected to the X-axis first slide (201) and the Y-axis second slide (202) respectively, receives signals, and controls the movement of the X-axis first slide (201) and the Y-axis second slide (202).

2. The mechanical device for assisting bowel preparation by whole-abdomen swinging as described in claim 1, characterized in that: The X-axis first slide (201) and Y-axis second slide (202) adopt an interchangeable modular structure, including: a rectangular base (203), with support plates (211) respectively provided at both ends of the wide side, bearings (210) passing through the support plates (211) at both ends and located in the middle of the support plates (211) at both ends, and two parallel linear guides (204) provided on the rectangular base (203); transmission assembly: ball screw (205) is horizontally mounted on the support plate (202) through the bearings (210). Between 11), one end is fixed to the driven synchronous pulley (216), the screw nut (206) is fixed inside the moving block (208) and meshes with the screw; the moving block (208) is slidably connected to the linear guide rail (204) at its bottom through two linear sliders (207); the drive unit: the motor (212) is fixed at the end of the base (203), the output shaft is connected to the driving synchronous pulley (214), and drives the driven synchronous pulley (216) to rotate through the synchronous belt (215), thereby driving the ball screw (205) to rotate.

3. The mechanical device for assisting bowel preparation by whole-abdomen swinging as described in claim 2, characterized in that, The top of the movable block (208) is provided with an extended connecting plate (209), which has a larger plane area than the movable block (208), is rigidly connected by bolts and is provided with a standard mounting hole array.

4. The mechanical device for assisting bowel preparation by whole-abdomen swinging as described in claim 2, characterized in that, The movable block (208) has a hollow structure, and the bottom groove is precisely matched with the linear slider (207) and rigidly connected by bolts.

5. The mechanical device for assisting bowel preparation by whole-abdomen swinging as described in claim 2, characterized in that, The two linear guide rails (204) are symmetrically equipped with two linear sliders (207). The bottom of the slider is provided with a V-shaped groove that matches the convex cross section of the guide rail, forming a self-centering anti-eccentric sliding pair.

6. The mechanical device for assisting bowel preparation by whole-abdomen swinging as described in claim 2, characterized in that, The controller (3) communicates with the motor driver (213) via an industrial bus. It has a built-in multi-axis linkage algorithm that can generate composite trajectory motion commands including linear motion, elliptical motion and figure-eight motion to control the operation of the two motors (212).

7. The mechanical device for assisting bowel preparation by whole-abdomen swinging as described in claim 2, characterized in that, The motor (212) is a closed-loop control system with an encoder resolution of ≥17 bits and a positioning accuracy of ≤0.02mm.

8. The mechanical device for assisting bowel preparation by whole-abdomen swinging as described in claim 1, characterized in that: The cushion (4) consists of a base plate and a soft pad. The base plate is detachable, and the soft pad is placed on the base plate with an ergonomic curved surface.

9. The mechanical device for assisting bowel preparation by whole-abdomen swinging as described in claim 1, characterized in that, The seat cushion (4) has a movement frequency of 0.5-10Hz and a movement amplitude of 0.5-50mm.

10. A functional chair for assisting bowel preparation with full-abdominal swinging motion, characterized in that, The functional seat base is provided with the mechanical device described in any one of claims 1-9, and the functional seat is also provided with a foldable hinge mechanism and an adjustable angle backrest (5).

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