Disc retractor for anal surgery

Abstract

The utility model belongs to the technical field of surgical retractor, provide a disc type surgical retractor for anus operation, include: disc support ring, disc support ring cross section is wide below narrow structure, one side of disc support ring is connected with round hanging ring, the round hanging ring sets up in the wide side of disc support ring, disc support ring far away from the round hanging ring one side is provided with silica gel antiskid layer, it is connected with a plurality of connecting plates between the round hanging ring and disc support ring, a plurality of adjusting retractor are movably connected with the outside of disc support ring, adjusting retractor is used for pulling anal tissue, a plurality of hooks are fixedly installed in adjusting retractor one side, the utility model discloses the cooperation of adjusting retractor and round hanging ring can according to the operation process real -time adjustment operation field exposure degree and range, need not repeatedly adjust, has saved the operation time greatly, in long -time operation process, retractor can keep steady pulling state all the time, provides clear, stable operation visual field for doctor.

Description

Technical Field

[0001] This utility model belongs to the field of surgical retractor technology, specifically relating to a disc-type surgical retractor for anal surgery. Background Technology

[0002] Anorectal diseases are common in clinical practice, encompassing a variety of complex conditions that affect patients' quality of life, such as low rectal cancer, anorectal tumors, benign anorectal diseases, rectovaginal fistulas, and rectourethral fistulas. Treatment of these diseases often requires surgery to achieve a radical cure or improve symptoms. However, the anatomy of the anorectal region is unique, with its narrow space and deep location, which presents a great challenge to transanal surgery.

[0003] Existing types of anal retractors include handle-type C- / U-shaped anal retractors, clamp-type anal dilators, and disposable Lonestar retractors. However, in actual surgery, handle-type C- / U-shaped anal retractors require continuous retraction by the surgical assistant. Due to the complex anatomy and unique location of the anal canal and rectum, it is difficult for the assistant to find the optimal retraction direction and force in one go, resulting in poor exposure. To obtain better surgical field exposure, the assistant needs to constantly adjust the retraction direction, which not only increases the complexity of the surgery but also prolongs the operation time. The need for continuous operation by the assistant further complicates the procedure. It is difficult to guarantee stable exposure of the anal canal and rectum for an extended period. During the procedure, the assistant may experience fatigue or other factors that cause instability in the traction force, leading to changes in the surgical field and affecting the precision and safety of the surgery. Repeated adjustments to the traction direction and unstable exposure of the surgical field increase the difficulty of the surgery, requiring greater caution from the surgeon and increasing surgical risks. While a clamp-type anal dilator can open the anus to some extent, its exposure of the surgical field is relatively limited. In cases of complex lesions or surgeries requiring a wider surgical field, the clamp-type dilator may not meet the surgical needs, and the surgeon may need to use a different device. Using other tools or methods for assisted exposure increases the complexity and uncertainty of the surgery. During the use of the retractor, the force applied to the anal area is uneven because the clamp design makes it difficult to precisely control the traction force on different parts of the anus, easily leading to excessive local force and subsequent anal canal muscle damage. Anal canal muscle damage not only affects anal function, such as causing fecal incontinence, but also increases postoperative pain and rehabilitation difficulty, prolonging recovery time. The cost of disposable Lonestar retractors is high. In situations where medical resources are relatively scarce, this high-cost disposable instrument cannot be reused, resulting in serious waste of medical resources. For some primary healthcare institutions or patients with limited financial means, the high cost also increases the medical burden, limiting the widespread application of this instrument. The retractor is made of elastic rubber, a soft material with poor stability. During surgery, if the tension is too high, the retractor is prone to breakage, which not only affects the smooth progress of the surgery but may also cause secondary damage to the patient's tissues. Furthermore, the retractor's traction point is too small, easily causing tearing and damage to the anal canal and rectal mucosa during traction, increasing the risk of postoperative complications. Utility Model Content

[0004] The purpose of this invention is to provide a disc-type surgical retractor for anal surgery to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A disc-type surgical retractor for anal surgery, comprising:

[0007] A disc-shaped support ring has a cross-section that is wider at the top and narrower at the bottom. A circular hanging ring is connected to one side of the disc-shaped support ring, and the circular hanging ring is located on the wider side of the disc-shaped support ring. A silicone anti-slip layer is provided on the side of the disc-shaped support ring away from the circular hanging ring. Several connecting plates are connected between the circular hanging ring and the disc-shaped support ring. Several adjusting hooks are movably connected to the outer side of the disc-shaped support ring. The adjusting hooks are used to pull anal tissue. Several hooks are fixedly installed on one side of the adjusting hooks.

[0008] Preferably, two hooks are movably connected to one side of the disc-shaped support ring. The two hooks are symmetrically arranged on both sides of the disc-shaped support ring. The two hooks are used to hook the patient's (lithotomy position) groin to prevent the disc-shaped hooks from falling and shifting due to gravity. A connecting hook is fixedly installed at the end of the two hooks near the circular hanging ring. The connecting hook is used to hook the circular hanging ring. The above structure can be selectively connected and used according to the patient's condition.

[0009] Preferably, the disc-shaped support ring, the circular hanging ring, the adjusting hook, and the lifting hook are all made of stainless steel.

[0010] Preferably, the spacing between the hooks is 0.5cm.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) The disc-type surgical retractor of this utility model fully considers the special needs of anorectal surgery and can stably expose the surgical field for a long time. Compared with the existing handle-type C-type / U-type anal retractor, this retractor does not require continuous traction by the surgical assistant, avoiding changes in the surgical field caused by assistant fatigue or improper operation. By adjusting the combination of the retractor and the circular hanging ring, the degree and range of surgical field exposure can be adjusted in real time according to the surgical progress without repeated adjustments, which greatly saves surgical time. During a long surgical process, the retractor can always maintain a stable traction state, providing the doctor with a clear and stable operating field. Due to the reduction in the time and frequency of surgical field adjustment, the surgical efficiency is significantly improved.

[0013] (2) The circular hanging ring structure of this utility model can be hooked in different directions at will, which is easy to operate. The operator can hang the hook of the adjusting hook on the circular hanging ring from any direction according to the needs of the operation, without complicated operation steps. At the same time, the design of the circular hanging ring makes the force even in all directions, avoiding damage to the anal mucosa and muscles due to excessive local force. Compared with the traditional clamp-type anal dilator, this hook can minimize the damage to the anal tissue while ensuring the exposure of the surgical field, which is conducive to protecting the anal tissue and function. The flexibility of the circular hanging ring makes this hook adaptable to different types and locations of anorectal diseases. Whether it is a simple surgery for benign anal diseases or a complex surgery for anorectal tumors, this hook can provide a suitable surgical field exposure plan to meet diverse surgical needs.

[0014] (3) The different positions of the hook in this utility model provide great flexibility for the operation. The operator can precisely adjust the traction direction and force according to the location of the lesion and the needs of the operation. For example, when the lesion is located deep in the anal canal, the closer hook position can be selected to further expand the surgical field and enable the operator to observe the lesion more clearly. When the lesion is relatively shallow and only the rectum needs to be seen, the farther hook position can be selected to avoid excessive traction and damage to the surrounding tissues. By adjusting the traction direction and position, the lesion can be better exposed, and the doctor can observe the shape, size and relationship with the surrounding tissues of the lesion more clearly, so as to formulate a more precise surgical plan.

[0015] (4) This utility model takes into account that the device is made of stainless steel and has a certain weight. After long-term use, it may fall or shift due to gravity, affecting the exposure of the surgical field. This application sets two selective hooks, which suspend the device on the patient's thigh when the patient is in the lithotomy position, forming a stable support system. This is like adding a "suspension" fixed point to the device, effectively offsetting the influence of the device's own gravity, avoiding changes in the surgical field caused by falling or shifting, ensuring that the surgical field is always clear and stable during the operation, and greatly improving the safety of the operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a bottom view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting hook structure of this utility model;

[0019] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0020] Figure 5 This is a front view structural diagram of the present invention.

[0021] In the diagram: 1. Disc-shaped support ring; 11. Circular hanging ring; 12. Silicone anti-slip layer; 13. Connecting plate; 14. Adjusting hook; 15. Hook; 16. Lifting hook; 17. Connecting hook. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0023] Example 1:

[0024] Please see Figure 1 - Figure 5 As shown, a disc-type surgical retractor for anal surgery includes:

[0025] A disc-shaped support ring 1 has a cross-section that is wider at the top and narrower at the bottom. A circular hanging ring 11 is connected to one side of the disc-shaped support ring 1. The circular hanging ring 11 is located on the wide side of the disc-shaped support ring 1. A silicone anti-slip layer 12 is provided on the side of the disc-shaped support ring 1 away from the circular hanging ring 11. Several connecting plates 13 are connected between the circular hanging ring 11 and the disc-shaped support ring 1. Several adjusting hooks 14 are movably connected to the outside of the disc-shaped support ring 1. The adjusting hooks 14 are used to pull the anal tissue. Several hooks 15 are fixedly installed on one side of the adjusting hooks 14.

[0026] Specifically, two hooks 16 are movably connected to one side of the disc-shaped support ring 1. The two hooks 16 are symmetrically arranged on both sides of the disc-shaped support ring 1. The two hooks 16 are used to hook the patient's groin to prevent the disc-shaped support ring 1 from falling and shifting. A connecting hook 17 is fixedly installed on one end of the two hooks 16 near the circular hanging ring 11. The connecting hook 17 is used to hook the circular hanging ring 11. The disc-shaped support ring 1, the circular hanging ring 11, the adjusting hook 14, and the hooks 16 are all made of stainless steel. The spacing between the hooks 15 is 0.5cm.

[0027] As can be seen from the above, the disc-shaped support ring 1 is designed with a structure that is wider at the top and narrower at the bottom. Its narrow side is in direct contact with the patient's skin and is provided with a silicone anti-slip layer 12. The silicone anti-slip layer 12 is soft and can effectively increase the friction with the patient's skin, prevent the device from sliding during the operation, and ensure the stability of the device. The inner diameter of the disc-shaped support ring 1 is 18-20cm and the outer diameter is 23-25cm. There are 8-10 adjusting hooks 14, which are flat, about 12-15cm long, 0.3-0.5cm wide, and 0.2-0.3cm thick. The head end is curved like a hook, and the hook part is finely polished with a smooth surface, which can reduce damage to the anal tissue. The other end of the adjusting hook 14 is straight and is provided with multiple hooks 15. The distance between the hooks 15 is precisely set to 0.5cm. Different positions are provided according to the position of different hooks 15. The operator can select the appropriate hook 15 position to adjust the traction direction and force according to the needs of the operation, thereby fully exposing the surgical field.

[0028] The hook 16 has an arc structure and is connected to the circular hanging ring 11 through the connecting hook 17. The hook 16 is hung on the patient's groin to provide a stable support system for the device and prevent the device from shifting under its own weight.

[0029] During use, the patient lies supine on the operating table in the lithotomy position, fully exposing the anal area. Medical staff need to provide psychological reassurance to the patient, alleviating their anxiety, and briefly explain the surgical procedure and the use of the disc-shaped surgical retractor to gain the patient's cooperation. The disc-shaped surgical retractor is thoroughly cleaned and disinfected to ensure that the device meets hygiene standards. All components are checked for damage. The medical staff holds the disc-shaped support ring 1 and slowly places it around the anus, ensuring that the narrow end is in close contact with the patient's skin. This ensures that the silicone anti-slip layer 12 is in full contact with the skin to increase friction and prevent the device from shifting. During placement, care should be taken to be gentle to avoid squeezing or scratching the patient's skin. The heads (hook-shaped) of the multiple adjusting hooks 14 are slowly inserted through the anus. During insertion, the medical staff needs to adjust the placement according to the location of the lesion and the surgical requirements. To perform the procedure, select the appropriate insertion direction and depth, pull the subanal tissue outwards, hook the hook 15 of the adjusting hook 14 onto the circular hanging ring 11, and pull the adjusting hook 14 outwards in different directions according to the location and size of the anal canal and rectum to be exposed as needed for the surgery. Select the appropriate hook 15 position. After adjusting the adjusting hook 14, medical staff need to carefully check the exposure of the surgical field to ensure that the lesion is clearly visible and that the surrounding tissues are not excessively pulled or damaged. If it is decided to use the hanging hook 16, hook the connecting hook 17 onto the outside of the circular hanging ring 11, and then hook the hanging hook 16 onto the patient's groin. Ensure that the device will not fall off or shift during long-term use. After completing the above steps, the surgical operation can be performed. During the operation, the doctor can adjust the position of the adjusting hook 14 as needed to ensure full exposure of the surgical field.

[0030] This device can fully and stably expose the surgical field, reducing interference caused by repeated adjustments during surgery, improving the accuracy and safety of the operation. At the same time, it is easy to operate, reducing the workload of doctors and shortening the operation time. The use of hook 16 further enhances the stability of the device, improves patient comfort, and expands the scope of application of the device. In addition, the device is reusable, reducing medical costs and reducing the waste of medical resources.

[0031] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A disc-type surgical retractor for anal surgery, characterized in that, include: A disc-shaped support ring (1) has a cross-section that is wider at the top and narrower at the bottom. A circular hanging ring (11) is connected to one side of the disc-shaped support ring (1). The circular hanging ring (11) is located on the wide side of the disc-shaped support ring (1). A silicone anti-slip layer (12) is provided on the side of the disc-shaped support ring (1) away from the circular hanging ring (11). Several connecting plates (13) are connected between the circular hanging ring (11) and the disc-shaped support ring (1). Several adjusting hooks (14) are movably connected to the outside of the disc-shaped support ring (1). The adjusting hooks (14) are used to pull the anal tissue. Several hooks (15) are fixedly installed on one side of the adjusting hooks (14).

2. The disc-type surgical retractor for anal surgery according to claim 1, characterized in that, Two hooks (16) are movably connected to one side of the disc-shaped support ring (1). The two hooks (16) are symmetrically arranged on both sides of the disc-shaped support ring (1). The two hooks (16) are used to hook the patient's thigh root to prevent the disc-shaped support ring (1) from falling and shifting. A connecting hook (17) is fixedly installed at one end of the two hooks (16) near the circular hanging ring (11). The connecting hook (17) is used to hook the circular hanging ring (11).

3. A disc-type surgical retractor for anal surgery according to claim 1, characterized in that, The disc-shaped support ring (1), circular hanging ring (11), adjusting hook (14), and lifting hook (16) are all made of stainless steel.

4. A disc-type surgical retractor for anal surgery according to claim 1, characterized in that, The spacing of the hooks (15) is 0.5cm.

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