Low-position postoperative anal sphincter-saving rehabilitation training instrument

CN224911610UActive Publication Date: 2026-10-30SUN YAT SEN UNIVERSITY CANCER CENTER (CANCER HOSPITAL AFFILIATED TO SUN YAT SEN UNIVERSITY CANCER RESEARCH INSTITUTE OF SUN YAT SEN UNIVERSITY)
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Patent Information

Application Number
CN202520799277.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-10-30
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

现有产品一般功能较为简单,如专利CN222585327U 一种直肠球囊治疗器所公开的产品,无法动态监测使用者的肛门压力及肛门功能恢复情况,而且需要医生对扩张压力进行设置和调整,使用者一般需去医疗机构进行肛门压力检测,花费的时间及经济成本较高

Benefits of technology

[0013]本实用新型提出的康复训练仪通过气动收缩/扩张和压力传感器,可实时对于扩张力的精确设置,以及肛门直肠压力的监测,可以实现居家自主监测,降低医疗成本。通过脉冲电治疗单元的设置,可以增强盆底肌被动收缩力,配合结合气动扩张,模拟粪便充胀感,加快重建排便反射通路。更进一步有的,基于压力曲线及治疗相关数据的持续检测,便于医生评估康复进度,制定针对性的康复方案。

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Abstract

The utility model discloses a low position postoperative rehabilitation training instrument of anal sphincter conservation, including training appearance body, controller, training appearance body includes holding part, inner support unit, control panel, gasbag, outer cover layer, air pump, battery, air pump, battery, control panel set up in the inner support unit, the gasbag is covered in the inner support unit outside, the outer cover layer is set up in the gasbag and the inner support unit outside, holding part sets up in the inner support unit one end. The rehabilitation training instrument through pneumatic contraction / expansion and pressure sensor can be real -time for the accurate setting of expansion force and the monitoring of anorectal pressure, can realize the independent monitoring at home, reduces the medical cost. On the product form, through the micro air pump and the whole structure integration, the product volume is smaller, and the use and the carrying are more convenient. Adopt the setting of double -segment inner support and gasbag, improve the use comfort of product while guaranteeing that the product volume is smaller.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a low-position anal preservation postoperative rehabilitation training device. Background Technology

[0002] 70%–80% of rectal cancer cases are mid-to-low rectal cancers (tumors ≤10 cm from the anal verge). Because of their proximity to the anus, traditional surgery for these tumors requires anal resection and permanent colostomy, leading to loss of physiological function, psychological trauma, and a decline in quality of life. Low anterior resection with sphincter preservation, however, preserves anal function while radically removing the tumor, gradually becoming the preferred surgical method for radical treatment of low rectal cancer. However, approximately 60% of patients develop low anterior resection syndrome (LARS) postoperatively, mainly manifested as: bowel dysfunction: significantly increased bowel movement frequency (10–20 times daily), urgency, incomplete defecation, or incontinence, due to decreased rectal storage function and damage to the nerve reflex arc; anastomotic complications; and urinary dysfunction.

[0003] Continuous pelvic floor muscle rehabilitation training can effectively improve low anterior resection syndrome (LARS). Pelvic floor muscle rehabilitation training generally includes pelvic floor muscle exercises, biofeedback training, and rectal balloon training. Rectal balloon training simulates the feeling of fecal distension by injecting water or gas into a rectal balloon, training the brain to recognize and respond to the urge to defecate. During balloon dilation, the patient is required to simultaneously contract the anal sphincter to resist the pulling force, effectively enhancing sphincter coordination. Existing products generally have relatively simple functions. For example, the product disclosed in patent CN222585327U, a rectal balloon therapy device, cannot dynamically monitor the user's anal pressure and anal function recovery. Furthermore, it requires a doctor to set and adjust the dilation pressure, and users generally need to go to a medical institution for anal pressure testing, which is time-consuming and costly. Summary of the Invention

[0004] The purpose of this invention is to provide a low-position anal sphincter preservation postoperative rehabilitation training device to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides a low-position anal sphincter preservation postoperative rehabilitation training device, comprising a training device body and a controller. The training device body includes a grip, an inner support unit, a control board, an airbag, an outer cover, an air pump, and a battery. The air pump, battery, and control board are disposed within the inner support unit, and the airbag covers the outer side of the inner support unit. The outer cover is disposed outside the airbag and the inner support unit, and the grip is disposed at one end of the inner support unit.

[0006] Furthermore, the controller is a dedicated remote controller and / or a mobile phone with a control APP installed, and the controller is connected to the training device via Bluetooth.

[0007] Furthermore, the inner support unit includes a rear section cylinder and a front section soft rubber rod; the rear section cylinder is a cylindrical structure used to house the air pump, battery, and control board, and its outer wall is provided with slots for communication between the air pump and the airbag; the front section soft rubber rod is located at the front of the rear section cylinder.

[0008] Furthermore, the airbag is cup-shaped or tubular and is adhered to the outer side of the inner support unit.

[0009] Furthermore, a disc-shaped limiting cover is provided on the outside of the rear section of the cylinder; the gripping part includes a bottom connecting disc, a central tube, and a top gripping disc, the bottom connecting disc is connected to the limiting cover by a bolt structure, and the end of the rear section of the cylinder is inserted into the central tube.

[0010] Furthermore, the outer cover layer covers the outside of the airbag and the limiting cover, and its end is located between the bottom connecting plate of the grip part and the limiting cover. The outer cover layer is squeezed and fixed by tightening the bolts of the grip part and the limiting cover.

[0011] Furthermore, the training device body also includes a pressure sensor unit, which includes multiple flexible pressure sensors, disposed on the outside of the inner support unit or the outside of the airbag, and evenly arranged along the axial direction of the inner support unit or the airbag. At least one flexible pressure sensor is provided at the front end, middle and rear end of the inner support unit or the airbag.

[0012] Furthermore, elongated electrodes arranged in a circumferential array are provided on the outer cover layer.

[0013] The rehabilitation training device proposed in this invention utilizes pneumatic contraction / expansion and pressure sensors to precisely set the expansion force in real time and monitor anorectal pressure, enabling self-monitoring at home and reducing medical costs. The pulsed electrical therapy unit enhances the passive contraction force of the pelvic floor muscles, which, combined with pneumatic expansion, simulates the feeling of fecal distension, accelerating the reconstruction of the defecation reflex pathway. Furthermore, continuous monitoring based on pressure curves and treatment-related data facilitates doctors' assessment of rehabilitation progress and the development of targeted rehabilitation plans.

[0014] In terms of product form, the product is small in size thanks to a miniature air pump and integrated structure, making it convenient to use and carry. The dual-section internal support and airbag design enhance user comfort while maintaining a compact size. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall scheme of one embodiment of the present utility model.

[0016] Figure 2 This is a cross-sectional schematic diagram of one embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the overall structure after removing the outer cover layer in one embodiment of the present invention.

[0018] Figure 4 This is an exploded view of the inner support unit and pressure sensor component according to one embodiment of the present invention.

[0019] Figure 5 This is an exploded view of the gripping part according to an embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of another embodiment of the present invention with a pulsed electrotherapy unit. Detailed Implementation

[0021] 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.

[0022] As attached Figure 1-6 As shown, the rehabilitation training device involved in this utility model includes a training device body 1 and a controller 2. The controller 2 is a dedicated remote control and / or a mobile phone with a control APP installed. The controller 2 is connected to the training device body 1 via Bluetooth.

[0023] As attached Figure 2 As shown, the training device body 1 includes a grip 11, an inner support unit 12, a control board 13, a pressure sensor unit 14, an airbag 15, an outer cover 16, an air pump 17, and a battery 18.

[0024] The inner support unit 12 includes a rear section cylinder 121 and a front section soft rubber rod 122. The rear section cylinder 121 is a cylindrical structure used to house the air pump 17, battery 18, and control board 13. Its outer wall is provided with a slot k1 for communication between the air pump 17 and the airbag 15.

[0025] The front section soft rubber rod 122 is disposed at the front of the rear section cylinder 121 and is fixed by bolts (bolts are not shown in the attached figure). The front section soft rubber rod 122 is made of soft material, such as silicone or soft plastic. In the attached figure, the front section soft rubber rod 122 is a rod-shaped structure with a rounded chamfer at the front end, but it can also be other shapes, such as a narrowed or curved front end. The front section soft rubber rod 122 can also have protrusions at different positions.

[0026] As attached Figure 3As shown, the airbag 15 covers the outside of the inner support unit 12 and is cup-shaped, i.e., closed at one end and open at the other. The airbag 15 is adhered to the outer side of the inner support unit with adhesive. The airbag 15 can also be a tubular structure with open ends.

[0027] Furthermore, as shown in the attached document. Figure 2 , 5 As shown, the rear section 121 is used to house the air pump 17 and the battery 18. A disc-shaped limiting cover 123 is provided on the outside of the rear section 121 to limit the insertion depth of the rehabilitation device.

[0028] In the attached diagram, the air pump 17 is placed on the side away from the end of the front soft rubber rod 122. This is mainly because the overall size of the air pump is fixed and cannot be deformed; placing it in the central area would easily cause discomfort during use. A commercially available product was chosen for the air pump 17; during the applicant's verification phase, a DC air pump with an outer diameter of approximately 2 cm was selected. To facilitate the fixing of the air pump 17 inside the rear section cylinder 121, a slot k1 is cut into the side of the rear part of the rear section cylinder 121, and a baffle k2 is set in the central area. The baffle k2 is used to limit the position of the air pump 17. The slot k1 facilitates the installation of the air pump 17 and the setting of the connecting pipe between the air pump 17 and the airbag 15.

[0029] As attached Figure 4 As shown, the pressure sensor unit 14 includes multiple flexible pressure sensors 141, which are disposed on the outside of the inner support unit 12 or the outside of the airbag 15 and are evenly arranged along the axial direction of the inner support unit 12 or the airbag 15. At least one flexible pressure sensor 141 is provided at the front end, middle and rear end of the inner support unit 12 or the airbag 15.

[0030] As attached Figure 2 , 6 As shown, the outer cover layer 16 is disposed on the outside of the airbag 15. The gripping part 11 is disposed at one end of the inner support unit 12.

[0031] The gripping part 11 is fixed to the limiting cover 123. The gripping part 11 includes a bottom connecting plate 111, a central tube 112, and a top gripping plate 113. The bottom connecting plate 111 is connected to the limiting cover 123 by a bolt structure. The end of the rear section tube 121 is inserted into the central tube 112.

[0032] The outer cover layer 16 covers the outside of the airbag 15 and the limiting cover 123, and its end is located between the bottom connecting plate 111 of the grip part 11 and the limiting cover 123. The outer cover layer 16 is compressed and fixed by tightening the bolts of the grip part 11 and the limiting cover 123. The outer cover layer 16 is made of soft elastic material.

[0033] Furthermore, elongated electrodes 161 arranged in a circumferential array are provided on the outer cover layer 16 for low-frequency electrical pulse therapy.

[0034] In terms of circuit connections, the air pump 17, battery 18, flexible pressure sensor 141, and elongated electrode 161 are electrically connected to the control board 13. The control board 13 is an integrated circuit board that integrates functions such as data acquisition, air pump control, electrical pulse control, and Bluetooth transmission. A push-button switch and a charging module are provided on the grip part 11 and are also electrically connected to the control board 13. The above circuit connection structure and the specific components of the control board can be adapted by those skilled in the art using existing technology according to requirements and are not within the scope of protection of this application.

[0035] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A rehabilitation training device for low-level anal sphincter preservation surgery, characterized in that, The device includes a training instrument body and a controller. The training instrument body includes a grip, an inner support unit, a control board, an airbag, an outer cover, an air pump, and a battery. The air pump, battery, and control board are disposed inside the inner support unit, and the airbag covers the outside of the inner support unit. The outer cover is disposed outside the airbag and the inner support unit, and the grip is disposed at one end of the inner support unit. The training instrument body also includes a pressure sensor unit, which includes multiple flexible pressure sensors disposed outside the inner support unit or outside the airbag, evenly arranged along the axial direction of the inner support unit or the airbag. At least one flexible pressure sensor is disposed at the front end, middle, and rear end of the inner support unit or the airbag.

2. The low-position anal sphincter preservation postoperative rehabilitation training device according to claim 1, characterized in that, The controller is a dedicated remote controller and / or a mobile phone with a control APP installed. The controller is connected to the training device via Bluetooth.

3. The low-position anal sphincter preservation postoperative rehabilitation training device according to claim 1, characterized in that, The inner support unit includes a rear section cylinder and a front section soft rubber rod; the rear section cylinder is a cylindrical structure used to house the air pump, battery, and control board, and its outer wall is provided with slots for communication between the air pump and the airbag; the front section soft rubber rod is located at the front of the rear section cylinder.

4. The low-position anal sphincter preservation postoperative rehabilitation training device according to claim 3, characterized in that, The airbag is cup-shaped or tubular and is attached to the outer side of the inner support unit.

5. The low-position anal sphincter preservation postoperative rehabilitation training device according to claim 3, characterized in that, A disc-shaped limiting cover is provided on the outside of the rear section of the cylinder; the gripping part includes a bottom connecting disc, a central tube, and a top gripping disc. The bottom connecting disc is connected to the limiting cover by a bolt structure, and the end of the rear section of the cylinder is inserted into the central tube.

6. The low-position anal sphincter preservation postoperative rehabilitation training device according to claim 5, characterized in that, The outer cover layer is wrapped around the outside of the airbag and the limiting cover. Its end is located between the bottom connecting plate of the grip and the limiting cover. The outer cover layer is squeezed and fixed by tightening the bolts of the grip and the limiting cover.

7. The low-position anal sphincter preservation postoperative rehabilitation training device according to claim 1, characterized in that, The outer cover layer is provided with elongated strip electrodes arranged in a circumferential array.