Dressing bag for perineum operation

By designing a dressing package that includes a "回"-shaped dressing body, a film, a surgical area film, a pad, and a collection bag, the problems of poor dressing fit and insufficient waste fluid collection in perineal surgery were solved. This achieved sterility and effective waste fluid collection, reduced the risk of infection and environmental pollution, and improved surgical efficiency and patient comfort.

CN223640829UActive Publication Date: 2025-12-09PEKING UNIV INT HOSPITAL
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Patent Information

Application Number
CN202422858616.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-12-09
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

Existing sterile dressings are difficult to adhere completely to the skin during perineal surgery, cannot effectively collect exudate, increase the risk of infection, and contaminate the surgical environment.

Method used

Design a dressing package comprising a "回"-shaped dressing body, a film, a surgical area film, a pad, and a collection bag. The film adheres tightly to the skin, the surgical area film can be torn open to expose the surgical area, the collection bag collects waste liquid, and a support frame and filter liner are provided to stably collect and filter waste liquid. A drain pipe and control valve ensure safe discharge.

Benefits of technology

It achieves precise adhesion between the dressing and the skin, reduces the risk of infection, effectively collects and filters waste fluid, prevents contamination, and improves surgical efficiency and patient comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of medical instruments, in particular to a dressing bag for perineum operation. Comprising a concentric-square-shaped dressing body, a mounting opening is formed in the middle of the dressing body and connected with a thin film completely covering the mounting opening, an operation area opening serving as an operation opening is formed in the lower middle portion of the thin film in a penetrating mode, an operation area film is arranged on the operation area opening, and the operation area opening is covered with the operation area film in the natural state; one side of the dressing body is connected with a base plate used for being attached to the hip of a patient, the base plate is located below the thin film, the other side of the dressing body is provided with a collecting bag used for collecting leaked liquid, the collecting bag is arranged below the thin film, and an opening faces the operation area film when the collecting bag is used. The thin film is attached to the skin of a patient through adsorption, the cushion plate arranged on one side of the dressing body is attached to the buttocks of the patient to prevent flushing fluid from leaking out, and the collecting bag arranged on the other side of the dressing body is used for collecting leaked waste liquid.
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Description

Technical Field

[0001] The utility model relates to the field of medical devices, and particularly relates to a perineum surgical dressing pack. Background Art

[0002] In perineum surgeries, such as hysteroscopy, cystoscopy, transurethral resection of the prostate, etc., the laying of sterile dressings is an important step to ensure the cleanliness of the surgical area and prevent infection. A large amount of flushing fluid is required during the operation. If these liquids are not properly controlled, they are likely to leak out and contaminate the surgical area and the surrounding environment. Traditional disposable sterile dressings, such as the hysteroscopy surgical dressing described in Patent CN205094798U, although providing a dressing structure for absorbing and collecting distending fluid, including a U-shaped dressing body, a leakage guiding groove, a liquid collector, etc., its design is mainly aimed at the special needs of hysteroscopy surgery and does not fully consider the challenges of waste liquid collection in perineum surgeries. In addition, Patent CN208591200U discloses an anorectal surgical dressing, which provides good fixation effect and the ability to absorb wound exudate through a fixed matrix and a raised dressing core, but also does not involve the comprehensive collection problem of waste liquid in perineum surgeries.

[0003] The deficiencies in the prior art are mainly reflected in two aspects. Firstly, after the existing disposable sterile dressings are laid, it is often difficult to achieve complete fitting with the patient's skin. Due to the irregular surface of the perineum skin, with folds and unevenness, voids are easily generated during the laying of the dressing, resulting in the invasion of bacteria and microorganisms and increasing the risk of postoperative infection. Secondly, the waste liquid collection devices of the existing dressings often cannot completely collect the leaked liquid. This not only increases the risk of contamination of the surgical area, but may also cause irritation of the patient's skin by the flushing fluid, leading to discomfort or complications. In addition, the leakage of waste liquid may also pollute the operating room environment, affecting the safety and efficiency of the operation.

[0004] In response to the above problems, although there have been some improvement measures, such as using higher-quality dressing materials, improving dressing designs, etc., these measures often cannot fundamentally solve the problems of fitting and waste liquid collection. Therefore, there is an urgent need to develop a new type of sterile dressing and its supporting waste liquid collection device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a perineum surgical dressing pack to solve the problems that the existing sterile dressings cannot be completely fitted with the skin and cannot completely collect the leaked liquid.

[0006] To achieve the above purpose, the following technical solutions are adopted.

[0007] A perineum surgical dressing pack, comprising a dressing main body in a "return" shape. An installation opening is provided in the middle of the dressing main body. A film that completely covers the installation opening is connected to the installation opening. A surgical area opening serving as a surgical opening penetrates through the middle and lower part of the film. A surgical area film is provided at the surgical area opening, and the surgical area film covers the surgical area opening in its natural state. One side of the dressing main body is connected to a backing plate for fitting the patient's buttocks, and the backing plate is located below the film. On the other side of the dressing main body, a collection bag for collecting leaked fluid is provided, and the collection bag is arranged below the film. When in use, the opening of the collection bag faces the direction of the surgical area film.

[0008] Optionally, a filtering inner lining with a fine mesh structure is arranged in the collection bag. The opening of the filtering inner lining is connected to the opening of the collection bag, and there is a gap between the bottom of the filtering inner lining and the bottom of the collection bag.

[0009] Optionally, a drain pipe is connected to the bottom of the collection bag, and a control valve for controlling the opening and closing of the drain pipe is arranged on the drain pipe.

[0010] Optionally, the bottom edge of the surgical area film is integrally connected to the film, and the two side edges and the top edge of the surgical area film are respectively tearably connected to the film. When the surgical area film is torn off from the film, the top edge of the surgical area film droops to the bottom of the surgical area opening to guide the leaked fluid into the collection bag.

[0011] Optionally, a support frame is fixedly connected to the collection bag along the circumference of its opening, and both ends of the support frame are fixedly connected to the dressing main body.

[0012] Optionally, an adhesive part is provided on the front surface of the film close to the backing plate, and a release film is adhered to the adhesive part, and the release film can be torn off from the adhesive part.

[0013] Optionally, the cross-section of the surgical area film is V-shaped. When the surgical area film is torn off from the film, the surgical area film serves as a V-shaped channel.

[0014] Optionally, a connecting part is fixedly connected to the top of the backing plate. The connecting part penetrates through the dressing main body and exits from the other side, and the connecting part is fixedly connected to the dressing main body. Both ends of the support frame are connected to the connecting part.

[0015] Optionally, the surface of the collection bag facing the dressing main body is in contact with the dressing main body, and the collection bag is folded and arranged on the dressing main body. When in use, the collection bag is propped up by the support frame.

[0016] Optionally, the release film is connected to the top surface of the backing plate close to the film.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention relates to a perineal surgical dressing pack. By placing a thin film in the middle of the dressing body and a tearable surgical area film in the lower part of the film, precise alignment of the dressing with the surgical area is achieved. This design ensures the sterility of the surgical area and reduces the risk of infection due to improper dressing application. Simultaneously, the tearable surgical area film allows for quick and convenient exposure of the surgical area during surgery, improving surgical efficiency. The film adheres to the patient's skin through adhesion, and a pad prevents leakage of irrigation fluid by fitting the patient's buttocks. Leaked waste fluid is collected in a collection bag on the other side of the dressing body. The opening of the collection bag faces the surgical area film. This design utilizes the downward drooping of the surgical area film to guide waste fluid into the collection bag, preventing waste fluid from flowing between the pad and the buttocks, effectively solving the waste fluid collection problem, avoiding contamination of the surgical area and operating room environment, and reducing patient discomfort.

[0019] The surgical area membrane has a V-shaped bottom edge, which not only helps guide waste fluid but also allows it to hang down naturally during surgery, reducing pressure on the patient's perineum and improving patient comfort.

[0020] The collection bag is equipped with a filter liner to filter solid particles in the waste liquid and prevent clogging of the drain pipe. The design of the drain pipe and control valve allows for safe and controlled discharge of waste liquid after surgery, further preventing environmental pollution.

[0021] The design of the support frame and connecting parts ensures that the collection bag can be stably supported during use, preventing movement during surgery from affecting the collection of waste fluid. The design of the release film and padding allows the dressing pack to be quickly fixed to the operating table and chair during use, improving the convenience of surgical preparation.

[0022] By combining these technical features, the perineal surgical dressing pack of this application not only improves the sterility of the surgical area and effectively collects waste fluid, but also improves patient comfort and surgical convenience, and has significant clinical application value. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of one side of the perineal surgical dressing pack of this utility model.

[0024] Figure 2 This is a schematic diagram of the other side of the perineal surgical dressing pack of this utility model.

[0025] Figure 3 This is a schematic diagram of the internal structure of the collection bag of a perineal surgical dressing pack according to this utility model.

[0026] Figure 4This is a schematic structural diagram of the state where one side of the perineum surgical dressing pack of the present utility model is in a retracted state.

[0027] Figure 5 This is a schematic structural diagram of the state where the other side collection bag of the perineum surgical dressing pack of the present utility model is in a retracted state.

[0028] Explanation of reference numerals: 1, dressing main body; 2, film; 3, surgical area film; 4, backing plate; 5, connecting part; 6, support frame; 7, collection bag; 8, filter lining; 9, drain pipe; 10, control valve; 11, surgical area opening. Detailed implementation manners

[0029] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0030] The following detailed descriptions are all exemplary descriptions, aiming to provide further detailed descriptions of the present utility model. Unless otherwise specified, all technical terms adopted by the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the present utility model are only for describing specific implementation manners, and are not intended to limit the exemplary implementation manners according to the present utility model.

[0031] Embodiment 1

[0032] As Figures 1-5 shown, this embodiment provides a perineum surgical dressing pack, including: a dressing main body 1, a film 2, and a surgical area film 3. The front view of the dressing main body 1 is approximately in the shape of a "hui" character, that is, there is a vacant installation opening in the dressing main body 1. This dressing pack further includes a film 2. The shape of the film 2 is adapted to the installation opening, and the film 2 completely covers the installation opening and can be fixedly connected to the installation opening. A surgical area opening 11 is penetrated through the film 2, and a part of the surgical area film 3 is detachably installed on the film 2, and the surgical area film 3 completely covers the surgical area opening 11.

[0033] The dressing main body 1 is made of a soft, breathable and sterile material, such as non-woven fabric or medical-grade plastic film. The shape of the dressing main body 1 is designed to adapt to the anatomical structure of the perineum to provide sufficient coverage area during the operation.

[0034] The material of the film 2 is a medical-grade transparent plastic film material, which can be a PC film, and has good liquid permeability resistance to ensure that it will not break due to liquid immersion during the operation; the four sides of the film 2 are connected to the installation opening of the dressing main body 1, and specifically can be bonded together by hot-melt technology. When in use, the film 2 can be electrostatically adsorbed on the patient's body for close attachment.

[0035] The surgical area membrane 3 is used to expose the surgical area after being torn open. It can be torn open completely or partially. The material of the surgical area membrane 3 is the same as that of the film 2. The connection can be designed to be easy to tear off so that it can be quickly peeled off at the beginning of the operation to expose the surgical area.

[0036] One side of the dressing body 1 is also provided with a pad 4 for placing the patient's buttocks. The pad 4 is located at the lower part of the film 2. The pad 4 can be a PVC board. The shape of the pad 4 can be semi-circular. The pad 4 has a certain degree of elasticity and is used for placing the patient's buttocks on the pad 4. One side of the pad 4 can be fixedly connected to the dressing body 1. The contact point between the pad 4 and the buttocks deforms under force, conforming to the patient's body and reducing leakage. The pad 4 can also position the dressing pack so that the surgical area is located exactly in the patient's perineum.

[0037] On the other side of the dressing body 1, a collection bag 7 for collecting leaked fluid is provided. The collection bag 7 is tightly fitted to the dressing body 1 on one side near the film 2. The collection bag 7 can be made of the same material as the film 2. The opening of the collection bag 7 can be designed for easy adjustment, such as by lining it with an aluminum ring, allowing the operator to easily widen the opening at the top of the collection bag 7 during surgery to facilitate the collection of waste fluid. A support frame 6 is provided around the opening of the collection bag 7. This support frame 6 is designed to keep the collection bag 7 open during surgery, ensuring that waste fluid can flow smoothly into the collection bag 7. The support frame 6 can be made of wire, plastic, or other lightweight and sufficiently strong materials to ensure stability and durability during surgery. The two ends of the support frame 6 can be fixed to the dressing body 1. This fixing method can be achieved by suturing, gluing, or using special fixing clamps. The choice of fixing method should ensure that the support frame 6 will not loosen or fall off during surgery, thereby ensuring the stable collection of waste fluid by the collection bag 7. The support frame 6 can be designed as one or more annular or semi-annular structures to accommodate the shape and size of the collection bag 7. The structure of the support frame 6 should be robust enough to support the weight of the collection bag 7, while also being designed to facilitate use and operation by surgical personnel.

[0038] The collection bag 7 is folded and mounted on the dressing body 1. This design allows the dressing pack to occupy less space during storage and transportation, while ensuring rapid deployment during surgery. The collection bag 7 can be folded in a Z-shape, accordion fold, or other suitable manner to ensure a stable collection space is formed smoothly when unfolded. The opening of the unfolded collection bag 7 faces the surgical area membrane 3, ensuring that waste fluid can flow smoothly into the collection bag 7. When in use, the collection bag 7 is supported by the support frame 6 to form a stable collection space. The unfolding action of the support frame 6 can be a simple stretching or a more complex mechanical linkage, ensuring that the collection bag 7 can be quickly and stably supported during surgery.

[0039] When in use, after the patient's buttocks are placed on the pad 4, the patient's upper body is in a flat position or at a certain acute angle to the horizontal plane, and the patient's legs are raised and spread apart. The film 2, together with the dressing body 1, covers the patient's perineum and extends upward to the patient's abdomen. The film 2 is attached to the patient's abdomen. The surgical site is placed at the position of the surgical area film 3. The surgical area film 3 is torn open, and the collection bag 7 is unfolded so that the opening of the collection bag 7 faces the direction of the surgical area film 3.

[0040] Example 2

[0041] like Figures 1-5 As shown, this embodiment provides a perineal surgical dressing pack. The difference from Embodiment 1 is that it further includes: the bottom edge of the surgical area membrane 3 can be integrally connected to the film 2, ensuring that the surgical area membrane 3 forms a single unit with the film 2 before use. This facilitates the operator to quickly tear open the surgical area membrane 3 at the start of surgery, exposing the surgical area opening 11. The surgical area membrane 3 may also be provided with a tear-away section for easy manual tearing, revealing the surgical area opening 11 on the film 2. The two sides and top edge of the surgical area membrane 3 are tearably connected to the film 2, and this tear-away connection can be a detachable connection with an easy-tear thread. This facilitates quick and convenient tearing of the surgical area membrane 3 at the start of surgery. During surgery, the two sides and top edge of the surgical area membrane 3 are torn off, allowing the surgical area membrane 3 to hang down, exposing the surgical area. The surgical area membrane 3 extends into the collection bag 7, facilitating the guidance of exudate into the collection bag 7.

[0042] As a specific example of the above, the surgical area membrane 3 has a V-shaped cross-section, meaning that the top surface of the surgical area membrane 3 is concave inward to form a V-shaped channel. When the surgical area membrane 3 hangs down, it can guide the exudate into the collection bag 7. As another example, the bottom edge of the surgical area membrane 3 can be V-shaped. During surgery, the surgical area membrane 3 hangs down to form a V-shaped channel, which facilitates the guidance and collection of the exudate.

[0043] Example 3

[0044] like Figure 2 and Figure 3As shown, this embodiment provides a perineal surgical dressing pack. The difference from Embodiment 1 is that it further includes a filter liner 8 inside the collection bag 7. The filter liner 8 can be made of a porous material, such as nylon, polyester, or other suitable synthetic materials. Its pore size is designed to filter out solid particles in the leaked fluid while allowing the fluid to pass through smoothly. This design ensures that solid particles in the waste fluid are effectively separated during collection, preventing environmental pollution during collection and discharge. The filter liner 8 can be a single or multiple layer structure, with the material selection and pore size of each layer depending on the filtration requirements. The shape and size of the filter liner 8 match the internal space of the collection bag 7, ensuring that the filter liner 8 can cover the inside of the collection bag 7, thereby achieving comprehensive filtration. The filter liner 8 is installed inside the collection bag 7 using appropriate fixing methods, such as sewing, gluing, or fixing with an internal support. This ensures that the filter liner 8 will not shift or fall off during use, guaranteeing the stability of the filtration effect. The collection bag 7 is designed to fit the filter liner 8. The material and shape of the collection bag 7 are designed to fit tightly with the filter liner 8, ensuring that the waste liquid can be evenly distributed on the filter liner 8 and improving filtration efficiency.

[0045] Example 4

[0046] like Figure 2 and Figure 3 As shown, this embodiment provides a perineal surgical dressing pack, which differs from Embodiment 1 in that it further includes: a drainage pipe 9 connected to the bottom of the collection bag 7, and a control valve 10 installed on the drainage pipe 9 to control the discharge of waste fluid. This design allows for the safe and controllable discharge of waste fluid after surgery, further preventing environmental pollution. The bottom of the collection bag 7 is designed with an interface for connecting to the drainage pipe 9, which can be a threaded connection, flange connection, or other suitable fluid connection method. The drainage pipe 9 is made of medical-grade plastic material, which has sufficient flexibility and chemical corrosion resistance to ensure safety and reliability during surgery. The control valve 10 is installed on the drainage pipe 9, which can be a ball valve, butterfly valve, or gate valve, etc. These valves are chosen because they can provide good sealing performance and achieve precise flow control in a small size. The control valve 10 can be operated manually or by foot to accommodate the usage habits of different operators during surgery. The control valve 10 is used to control the opening and closing of the drainage pipe 9, thereby controlling the discharge of waste fluid. During the procedure, when the waste liquid in the collection bag 7 reaches a certain volume, the operator can use the control valve 10 to discharge the waste liquid into a designated collection container, preventing overflow and contamination of the surgical area. The collection bag 7 is designed to fit snugly with the filter liner 8, ensuring that the waste liquid is evenly distributed on the filter liner 8 and improving filtration efficiency.

[0047] The combination of the above-mentioned technical features provides a sterile surgical area that perfectly conforms to the patient's perineum, reducing the risk of intraoperative infection. The design of the collection bag 7 and filter liner 8 effectively collects and filters waste fluid during the surgical process, keeping the surgical area clean and dry. The design of the drain pipe 9 and control valve 10 ensures safe and controlled discharge of waste fluid, preventing contamination of the surgical area and operating room environment.

[0048] Example 5

[0049] like Figures 1 to 5 As shown, this embodiment provides a perineal surgical dressing pack. The difference from embodiment 1 is that it further includes: one end of the pad 4 can be connected to one side of the connecting part 5. The connecting part 5 can be fixedly connected to the pad 4, or it can be integrated into the pad 4, or it can be rotatably connected. The other side of the connecting part 5 is connected to the support frame 6, which can be fixedly connected or rotatably connected. The connecting part 5 can be fixedly connected to the dressing body 1. When the connecting part 5 is fixedly connected to the pad 4 and the connecting part 5 is fixedly connected to the support frame 6, the support frame 6 can rotate with the rotation of the pad 4. When the patient's buttocks are in contact with the pad 4, the pad 4 and the film 2 form a first angle, which can be close to 90 degrees. At this time, under the action of the pad 4, the support frame 6 also forms a second angle with the film 2, which is also close to 90 degrees. Under the action of the support frame 6, the collection bag 7 unfolds accordingly, which facilitates the quick gathering and arrangement of the pad 4 and the collection bag 7. When the connecting part 5 and the pad 4 are rotatably connected, and the connecting part 5 and the support frame 6 are also rotatably connected, it is easy to store. When stored, the pad 4 can be tightly attached to the film 2, and the support frame 6 can be tightly attached to the dressing body. When in use, the pad 4 and the support frame 6 are rotated 90 degrees around the connecting part 5.

[0050] Example 6

[0051] like Figures 1 to 5As shown, this embodiment provides a perineal surgical dressing pack, which differs from Embodiment 1 in that it further includes: a release film is provided on the side of the film 2 facing the pad 4, which covers the adhesive surface of the film 2. The function of the release film is to protect the adhesive surface of the film 2 from contamination or damage when the dressing pack is not in use. The material selection of the release film should ensure that it is easy to peel off without damaging the film 2 during the peeling process. The release film can be made of polyethylene, polypropylene, or other suitable plastic films, which have good release properties and chemical stability, and can maintain stable performance during surgery. The release film and the film 2 can be fixed by heat sealing, pressure-sensitive adhesive, or other suitable methods to ensure that the release film will not be accidentally peeled off before use. The design of the release film should take into account the need for rapid peeling during surgery, and should not leave any residue when peeled off to ensure the cleanliness and sterility of the adhesive surface of the film 2. After the release film is peeled off, the adhesive surface of the film 2 should be able to adhere smoothly to the operating table or the patient's skin to ensure the stability of the dressing pack during surgery. The adhesive layer of film 2 should have good adhesion to ensure the dressing pack is fixed in place without causing excessive adhesion damage to the skin.

[0052] Example 7

[0053] like Figures 1 to 5 As shown, this embodiment provides a perineal surgical dressing pack, which differs from Embodiment 6 in that it further includes a release film attached to the top surface of the pad 4. This connection can be achieved through suturing, adhesive bonding, or other suitable fixation methods. The material of the release film should be selected to ensure that it is easy to peel off without damaging the film 2 during the peeling process. At the start of the surgery, the release film is torn off, exposing the adhesive surface of the film 2. The pad 4 is then attached and fixed to the operating table using the release film. The adhesive surface of the film 2 is then applied to the patient's skin to ensure the stability of the dressing pack during the surgical procedure.

[0054] As is known from common technical knowledge, this utility model can be implemented through embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this utility model or its equivalents are included in this utility model.

Claims

1. A perineal surgical dressing pack, characterized in that, It includes a "return" - shaped dressing main body (1). There is an installation opening in the middle of the dressing main body (1), and a film (2) covers the installation opening. A surgical area opening (11) serving as a surgical opening penetrates through the middle - lower part of the film (2). A surgical area film (3) is provided at the surgical area opening (11), and in its natural state, the surgical area film (3) covers the surgical area opening (11). One side of the dressing main body (1) is connected with a backing plate (4) for fitting the patient's buttocks. The backing plate (4) is located below the film (2). On the other side of the dressing main body (1), a collection bag (7) for collecting leaked fluid is provided. The collection bag (7) is arranged below the film (2), and when in use, the opening of the collection bag (7) faces the direction of the surgical area film (3).

2. The perineal surgical dressing pack according to claim 1, characterized in that, A filtering inner lining (8) with a fine mesh structure is arranged in the collection bag (7). The opening of the filtering inner lining (8) is connected to the opening of the collection bag (7), and there is a gap between the bottom of the filtering inner lining (8) and the bottom of the collection bag (7).

3. The perineal surgical dressing pack according to claim 1, characterized in that, A drain pipe (9) is connected to the bottom of the collection bag (7), and a control valve (10) for controlling the opening and closing of the drain pipe (9) is arranged on the drain pipe (9).

4. A perineal surgical dressing pack according to claim 1, characterized in that, The bottom edge of the surgical area film (3) is integrally connected to the film (2). The two side edges and the top edge of the surgical area film (3) are respectively tear - connectable to the film (2). When the surgical area film (3) is torn off from the film (2), the top edge of the surgical area film (3) droops to the bottom of the surgical area opening (11) to guide the leaked fluid into the collection bag (7).

5. A perineal surgical dressing pack according to claim 1, characterized in that, The collection bag (7) is fixedly connected with a support frame ( 6. A perineal surgical dressing pack according to claim 1, characterized in that, ​ 7. A perineal surgical dressing pack according to claim 4, characterized in that, ​ 8. A perineal surgical dressing pack according to claim 5, characterized in that, ​ 9. A perineal surgical dressing pack according to claim 5, characterized in that, ​ 10. A perineal surgical dressing pack according to claim 6, characterized in that, ​

Citation Information

Patent Citations

  • Palace laparoscopic surgery dressing

    CN205094798U

  • Dressing of anorectal surgery surgery

    CN208591200U