A negative pressure wound drainage device for various chronic wound exudates

Abstract

This invention relates to the field of medical device technology, and in particular to a negative pressure drainage device for various chronic wound exudates. It includes a disposable drainage bag, a dressing, and a frame for connecting the disposable drainage bag and clamping it onto a hospital bed. It also includes a micro-negative pressure drainage drive unit located on the bottom side of the clamping unit to generate negative pressure inside the disposable drainage bag; and a fastener, a threaded structure, installed at the bottom of the frame, which is also connected to a moving plate via a transmission component. Through the cooperation of the fastener, transmission component, and moving plate, the micro-negative pressure drainage drive unit organically integrates the frame fixing operation with the negative pressure generation process. When the fastener is tightened and fixed to the hospital bed, it simultaneously drives the moving plate to reset and applies tension to the fixing spring, causing the first clamping plate to displace away from the second clamping plate, thereby pulling the drainage bag to form an outward expansion deformation, creating a continuous and stable micro-negative pressure environment inside the bag.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a negative pressure drainage device for various chronic wound exudates. Background Technology

[0002] Negative pressure wound therapy is an important technique widely used in the management of chronic wounds in recent years. It promotes the drainage of wound exudate, improves local blood circulation and accelerates the growth of granulation tissue by applying controllable negative pressure to the wound surface. It is especially suitable for the clinical treatment of various chronic wounds such as diabetic foot ulcers, pressure sores and postoperative incisions that are difficult to heal.

[0003] The Chinese Patent Network published a patent with publication number CN207640712U entitled "A Negative Pressure Drainage Device for Various Chronic Wound Exudates". The negative pressure drainage device includes a negative pressure source and a guide tube with a liquid inlet structure. The guide tube is arranged in the wound that needs drainage through the liquid inlet structure. The negative pressure source is connected to the free end of the guide tube. During the drainage process, the fluid exuded from the wound is drawn out of the wound through the liquid inlet structure in cooperation with the negative pressure source.

[0004] The aforementioned patents and various existing simple negative pressure drainage devices based on mechanical structures or elastic elements attempt to generate moderate negative pressure through manual operation or elastic deformation to reduce treatment costs and improve portability. However, existing simple devices generally suffer from technical defects such as separation of negative pressure generation and device fixation operation, complex structure leading to cumbersome operation, difficulty in maintaining a stable negative pressure state, and loose fixation of drainage bags that are prone to falling off. These devices require multiple adjustments during clinical use, increasing the workload of medical staff and affecting the patient's treatment experience and the continuity of drainage effects. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the aforementioned problem that the existing negative pressure drainage for exudate has poor effect, the present invention is proposed.

[0007] Therefore, the purpose of this invention is to provide a negative pressure drainage device for various chronic wound exudates.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a negative pressure drainage device for various chronic wound exudates, comprising a disposable drainage bag, a dressing, and a frame for connecting the disposable drainage bag and clamping it onto a hospital bed, characterized in that: it further comprises, A clamping component, installed on the top of the frame, is used to fix the opening of the drainage bag; A micro-negative pressure drainage drive is disposed in the bottom area of ​​the clamping member to generate negative pressure inside the disposable drainage bag; The fasteners are threaded and tightened, installed at the bottom of the frame, and are also connected to the moving plate via a transmission component. In use, the fastener is operated to drive the micro-negative pressure drainage drive to connect the disposable drainage bag through the transmission component. Then, the fastener is fixed to the hospital bed and the micro-negative pressure drainage drive acts on the disposable drainage bag to generate negative pressure, thereby draining the wound exudate through the dressing into the disposable drainage bag.

[0009] As a preferred embodiment of the negative pressure drainage device for various chronic wound exudates described in this invention, the clamping member includes a tension spring installed inside the top of the frame, a connecting frame installed at one end of the tension spring, the connecting frame extending through the outside of the frame, and a matching buckle installed at the through end of the connecting frame.

[0010] As a preferred embodiment of the negative pressure drainage device for various chronic wound exudates described in this invention, the micro negative pressure drainage drive includes a movable plate movably connected to the frame, a fixed spring installed on the outer wall of the movable plate, a first adhesive plate connected to one end of the fixed spring, and a second adhesive plate fixedly connected to the frame. Both the first adhesive plate and the second adhesive plate are provided with suction cups.

[0011] As a preferred embodiment of the negative pressure drainage device for various chronic wound exudates described in this invention, the fastener includes a rotating rod installed on one side of the bottom of the frame, and a fastening plate is connected to the threaded area of ​​the rotating rod. The rotating rod can move the fastening plate up and down on one side of the bottom of the frame to clamp the frame onto the hospital bed.

[0012] As a preferred embodiment of the negative pressure drainage device for various chronic wound exudates described in this invention, the transmission component includes a toothed plate mounted on a movable plate, and a gear is mounted on the top end of the rotating rod, the gear engaging with the toothed plate in transmission.

[0013] As a preferred embodiment of the negative pressure drainage device for various chronic wound exudates described in this invention, wherein: the outer wall of the movable plate is provided with a slot, and the outer wall of the fastening plate is provided with a locking block; The locking block is an elastic locking block that restricts the moving plate to one side of the fastening plate when the moving plate approaches, so that the moving plate will not shift and maintain the slight negative pressure state of the disposable drainage bag.

[0014] As a preferred embodiment of the negative pressure drainage device for various chronic wound exudates described in this invention, it further includes a locking member disposed on the frame. The locking member includes a pressure plate disposed on the bottom wall of the frame, a support spring disposed at the bottom of the pressure plate, a connecting rod disposed at the bottom of the pressure plate, a pull rope disposed at one end of the connecting rod, a limiting block disposed on one side of the bottom of the connecting frame, a retaining spring disposed on the inner wall of the limiting block and the inner wall of the support, and one end of the pull rope is fixedly connected to the outer wall of one side of the limiting block.

[0015] As a preferred embodiment of the negative pressure drainage device for various chronic wound exudates described in this invention, the tension spring secures the connecting frame and the mating buckle to the frame body, and the mating buckle can be pulled to open the opening on one side of the top of the frame body, thereby facilitating the attachment of the disposable drainage bag to the mating buckle.

[0016] As a preferred embodiment of the negative pressure drainage device for various chronic wound exudates described in this invention, when the frame is clamped on the hospital bed, the pressure plate is pressed and drives the connecting rod to move, the moving connecting rod drives the pulling rope to move, and the pulling rope pulls the limiting block, causing the limiting block to rotate and tilt to block one side of the connecting frame.

[0017] The technical solution provided by this invention has the following advantages compared with the known prior art: I. The micro-negative pressure drainage drive unit organically integrates the frame fixing operation and the negative pressure generation process through the cooperation of fasteners, transmission components, and a moving plate. When the fasteners are tightened and fixed to the bed, the moving plate is simultaneously driven to reset and apply tension to the fixing spring, causing the first contact plate to shift away from the second contact plate. This, in turn, pulls the drainage bag to form an outward expansion deformation, generating a continuous and stable micro-negative pressure environment within the bag. This micro-negative pressure value is precisely controlled by the spring elastic coefficient and deformation, and is significantly lower than the negative pressure level generated by an electric pump. It can effectively aspirate wound exudate while avoiding mechanical damage to fragile granulation tissue, making it particularly suitable for chronic wound care with long healing periods. At the same time, the automatic locking structure of the elastic blocks and slots ensures the long-term maintenance of the negative pressure state without continuous manual intervention, reducing the intensity of medical operations and improving the reliability and continuity of the drainage process. Second, the clamping and locking components of this invention form a dual fixing mechanism, ensuring a stable connection of the drainage bag opening throughout the drainage process. The tension spring and the matching buckle constitute a quick-clamping structure, allowing medical staff to easily attach and attach the drainage bag with one hand. The locking component, through the linkage design of the pressure plate, connecting rod, and pull rope, automatically triggers the limiting block to rotate and lift while the frame is clamped and fixed to the bed, thus mechanically locking the matching buckle. This design cleverly couples the device fixing action with the bag opening locking action, avoiding the risk of the bag opening loosening due to changes in patient position or the weight of the drainage bag during drainage. It eliminates the hidden dangers of drainage interruption or leakage, ensuring the continuity of treatment and the cleanliness of the ward, significantly improving the safety and convenience of clinical use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall schematic diagram of a negative pressure drainage device for various chronic wound exudates.

[0020] Figure 2 This is a side view of a negative pressure drainage device for various chronic wound exudates.

[0021] Figure 3 This is a schematic diagram of the frame of a negative pressure drainage device for various chronic wound exudates.

[0022] Figure 4 This is a schematic diagram of the fasteners for a negative pressure drainage device used for exudation from various chronic wounds.

[0023] Figure 5 This is a schematic diagram of the pressure plate of a negative pressure drainage device for various chronic wound exudates.

[0024] Figure 6 This is a schematic diagram of the top plan of a negative pressure drainage device for various chronic wound exudates.

[0025] Figure 7 This is a schematic diagram of a dressing for a negative pressure drainage device used for exudation from various chronic wounds.

[0026] Reference numerals: 1. Disposable drainage bag; 2. Adhesive; 3. Frame; 4. Clamping component; 41. Tension spring; 42. Connecting frame; 43. Matching buckle; 5. Micro-negative pressure drainage drive component; 51. Moving plate; 52. Fixing spring; 53. First adhesion plate; 54. Second adhesion plate; 55. Suction cup component; 56. Slot; 6. Fastener; 61. Rotating rod; 62. Fastening plate; 63. Locking block; 7. Transmission component; 71. Gear; 72. Tooth plate; 8. Locking component; 81. Pressure plate; 82. Support spring; 83. Connecting rod; 84. Pull rope; 85. Limiting block; 86. Holding spring. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0031] Reference Figures 1-7 This embodiment of the invention provides a negative pressure drainage device for various chronic wound exudates, including a disposable drainage bag 1, a dressing 2, and a frame 3. The frame 3 is used to connect the disposable drainage bag 1 and can be clamped onto the hospital bed. The top of the frame 3 is equipped with a clamping member 4 for fixing the opening of the drainage bag. The bottom area of ​​the clamping member 4 is provided with a micro negative pressure drainage drive member 5 for generating negative pressure inside the disposable drainage bag 1. The bottom end of the frame 3 is equipped with a fastener 6, which has a threaded tightening structure. The fastener 6 is connected to the micro negative pressure drainage drive member 5 through a transmission member 7, realizing the linkage operation of fixing the frame 3 to the hospital bed and generating negative pressure.

[0032] Specifically, the clamping component 4 includes a tension spring 41 installed inside the top of the frame 3. A connecting frame 42 is installed at one end of the tension spring 41. The connecting frame 42 extends through the outside of the frame 3. A mating buckle 43 is installed at the through end of the connecting frame 42. The tension spring 41 clamps the connecting frame 42 and the mating buckle 43 onto the frame 3. The mating buckle 43 can be pulled to open the opening on one side of the top of the frame 3, thereby facilitating the snap-fit ​​of the disposable drainage bag 1 onto the mating buckle 43, achieving quick installation and reliable fixation of the disposable drainage bag 1.

[0033] Furthermore, the micro-negative pressure drainage drive component 5 includes a movable plate 51 movably connected to the frame 3, a fixing spring 52 mounted on the outer wall of the movable plate 51, a first adhesive plate 53 connected to one end of the fixing spring 52, and a second adhesive plate 54 fixedly connected to the frame 3. The first adhesive plate 53 and the second adhesive plate 54 are arranged opposite to each other, and both the first adhesive plate 53 and the second adhesive plate 54 are provided with suction cups 55 to enhance the adsorption and fixation effect with the disposable drainage bag 1. The outer wall of the movable plate 51 is provided with a slot 56 for cooperating with the fastener 6 to lock the position of the movable plate 51. The drainage bag is placed between the first adhesive plate 53 and the second adhesive plate 54. Rotating the rotating rod 61 causes the gear 71 to rotate, which in turn moves the toothed plate 72, which in turn moves the moving plate 51. This causes the moving plate 51 to move the first adhesive plate 53, firmly clamping the drainage bag between the first and second adhesive plates 53 and 54. The suction cups 55 on the first and second adhesive plates 53 and 54 adhere to both sides of the drainage bag. The dressing 2 of the drainage bag is then applied to the wound exudate area, and the outer edge of the wound is sealed by the adhesive part. Rotating the rotating rod 61 in the opposite direction then tightens the dressing. The plate 62 is clamped onto the hospital bed by the rotating rod 61. When the fastening plate 62 and the frame 3 are clamped and fixed, the moving plate 51 is driven by the fastener 6 to return to its original position. The moving plate 51 moves to one side of the fastening plate 62, so that the buckle on the moving plate 51 is inserted into the slot 56 of the moving plate 51. At this time, the toothed rod is in the toothless stage, so that the rotating rod 61 no longer drives the moving plate 51 to move. The moving plate 51 is then locked to one side of the fastening plate 62. This causes the returned and fixed moving plate 51 to apply a pulling force to the fixing spring 52 and the first fastening plate 53, thereby causing the drainage bag to have an outward expansion force, and thus causing the drainage bag to generate negative pressure.

[0034] Furthermore, the fastener 6 includes a rotating rod 61 installed on one side of the bottom of the frame 3, with a fastening plate 62 connected to the threaded area of ​​the rotating rod 61. Rotation of the rotating rod 61 causes the fastening plate 62 to move up and down on one side of the bottom of the frame 3, thereby clamping and fixing the frame 3 to the hospital bed. A retaining block 63 is installed on the outer wall of the fastening plate 62. The retaining block 63 is an elastic retaining block that, when the moving plate 51 approaches, can restrict the moving plate 51 to one side of the fastening plate 62, preventing the moving plate 51 from shifting and thus maintaining the slight negative pressure state of the disposable drainage bag 1, ensuring the continuous and stable drainage process.

[0035] Furthermore, the transmission component 7 includes a gear 71 mounted on the top of the rotating rod 61 and a toothed plate 72 mounted on the movable plate 51. The gear 71 and the toothed plate 72 engage in transmission to form a transmission connection between the rotating rod 61 and the movable plate 51, so that the rotational motion of the rotating rod 61 can be converted into the linear reciprocating motion of the movable plate 51.

[0036] Furthermore, the frame 3 is also equipped with a locking component 8, which includes a pressure plate 81 set on the bottom wall of the frame 3, a support spring 82 at the bottom of the pressure plate 81, a connecting rod 83 installed at the bottom of the pressure plate 81, a pull rope 84 installed at one end of the connecting rod 83, a limiting block 85 on one side of the bottom of the connecting frame 42, a holding spring 86 on the inner wall of the limiting block 85 and the inner wall of the frame 3, and a fixed connection between one end of the pull rope 84 and the outer wall of one side of the limiting block 85, forming a linkage mechanism between the pressure plate 81 and the limiting block 85, so as to automatically lock the clamping component 4 while the frame 3 is clamped and fixed to the hospital bed.

[0037] Operation process: Includes a disposable drainage bag 1, a dressing 2, and a frame 3 that connects the disposable drainage bag 1 and can be clamped onto the hospital bed. The top of the frame 3 is equipped with a clamping component 4 for fixing the opening of the drainage bag. The clamping component 4 includes: a tension spring 41 installed inside the top of the frame 3; a connecting frame 42 is installed at one end of the tension spring 41, extending through the outside of the frame 3; and a mating buckle 43 is installed at the through end of the connecting frame 42. The tension spring 41 clamps the connecting frame 42 and the mating buckle 43 onto the frame 3. Pulling the mating buckle 43 opens the opening on one side of the top of the frame 3, facilitating the clamping of the disposable drainage bag 1 onto the mating buckle 43. The bottom area of ​​the clamping component 4 has a micro-negative pressure drainage drive structure for the drainage bag. The bottom of the body 3 is equipped with a fastener 6, which is a threaded tightening structure. The micro-negative pressure drainage drive 5 includes a movable plate 51 movably connected to the frame 3, a fixing spring 52 installed on the outer wall of the movable plate 51, a first adhesive plate 53 installed at one end of the fixing spring 52, and a second adhesive plate 54 fixedly connected to the frame 3. The principle of the micro-negative pressure drainage drive 5 is as follows: When in use, the drainage bag is placed between the first adhesive plate 53 and the second adhesive plate 54. At this time, the rotating rod 61 is rotated, which drives the gear 71 to rotate. The gear 71 rotates, which drives the toothed plate 72 to move. The toothed plate 72 moves, which drives the movable plate 51 to move, so that the movable plate 51 drives the first adhesive plate 53 to move, so that the drainage bag is firmly attached to the first adhesive plate 53 and the second adhesive plate 54. The clamping plate 54 holds the drainage bag in place, causing the suction cups 55 on the first and second clamping plates 53 and 54 to adhere to both sides of the drainage bag. At this time, the dressing 2 of the drainage bag is applied to the wound exudate area, and the outer edge of the wound is sealed by the adhesive part. Then, the rotating rod 61 is rotated in the opposite direction, causing the fastening plate 62 to be clamped onto the bed. While the fastening plate 62 and the frame 3 are clamped and fixed, the movable plate 51 is moved back to its original position by the fastener 6. The movable plate 51 moves to one side of the fastening plate 62, causing the buckle on the movable plate 51 to engage in the slot 56. At this time, the toothed rod is in the toothless position, so the rotation of the rotating rod 61 no longer moves the movable plate 51, and the movable plate 51 is locked to one side of the fastening plate 62, thus restoring the original position. The fixed movable plate 51 applies tension to the fixed spring 52 and the first clamping plate 53, thereby causing the drainage bag to expand outward, which in turn creates negative pressure in the drainage bag. This causes the dressing connected to the drainage bag to drain the exudate from the wound into the disposable drainage bag 1. Subsequently, the movement of the fastening plate 62 causes the frame 3 to gradually clamp onto the hospital bed. At this time, the pressure plate 81 moves, driving the connecting rod 83 to move. The moving connecting rod 83 pulls the pulling rope 84, which in turn moves one end of the limiting block 85, causing the other end of the limiting block 85 to tilt up on one side of the connecting frame 42. This restricts the connecting frame 42, and the engaging buckle 43 locks the connection of the drainage bag opening, preventing the drainage bag from falling off. This wound exudate negative pressure drainage device has a simple structure.Furthermore, the expansion tendency of the disposable drainage bag 1 results in less negative pressure, which does not affect the impact of the dressing 2 on the wound, making it particularly suitable for use in chronic wound exudation.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A negative pressure drainage device for various chronic wound exudates, comprising a disposable drainage bag (1), a dressing (2), and a frame (3) for connecting the disposable drainage bag (1) and clamping it onto a hospital bed, characterized in that: It also includes, Clamping component (4) is installed on the top of the frame (3) to fix the opening of the drainage bag; A micro-negative pressure drainage drive (5) is disposed in the bottom area of ​​the clamping member (4) to generate negative pressure inside the disposable drainage bag (1); The fastener (6) is a threaded tightening structure, installed at the bottom of the frame (3), and the fastener (6) is also connected to the moving plate (51) through the transmission component (7); In use, the fastener (6) is operated to drive the micro negative pressure drainage drive (5) to connect the disposable drainage bag (1) through the transmission component (7). Then the fastener (6) is fixed to the bed and the micro negative pressure drainage drive (5) acts on the disposable drainage bag (1) to generate negative pressure, thereby draining the wound exudate through the dressing (2) into the disposable drainage bag (1).

2. The negative pressure drainage device for various chronic wound exudates as described in claim 1, characterized in that: The clamping member (4) includes a tension spring (41) installed inside the top of the frame (3). A connecting frame (42) is installed at one end of the tension spring (41). The connecting frame (42) extends through the outside of the frame (3). A matching buckle (43) is installed at the through end of the connecting frame (42).

3. The negative pressure drainage device for various chronic wound exudates as described in claim 1, characterized in that: The micro-negative pressure drainage drive (5) includes a movable plate (51) movably connected to the frame (3), a fixed spring (52) installed on the outer wall of the movable plate (51), a first adhesive plate (53) connected to one end of the fixed spring (52), and a second adhesive plate (54) fixedly connected to the frame (3). The first adhesive plate (53) and the second adhesive plate (54) are both provided with suction cups (55).

4. The negative pressure drainage device for various chronic wound exudates as described in claim 3, characterized in that: The fastener (6) includes a rotating rod (61) installed on one side of the bottom of the frame (3), and the threaded area of ​​the rotating rod (61) is connected to a fastening plate (62). The rotation of the rotating rod (61) can drive the fastening plate (62) to move up and down on one side of the bottom of the frame (3) to clamp the frame (3) onto the hospital bed.

5. The negative pressure drainage device for various chronic wound exudates as described in claim 4, characterized in that: The transmission component (7) includes a toothed plate (72) mounted on a movable plate (51), and a gear (71) is mounted on the top of the rotating rod (61), and the gear (71) engages with the toothed plate (72) in a transmission.

6. The negative pressure drainage device for various chronic wound exudates as described in claim 5, characterized in that: The outer wall of the movable plate (51) is provided with a slot (56), and the outer wall of the fastening plate (62) is provided with a locking block (63). The locking block (63) is an elastic locking block (63). When the moving plate (51) approaches, it restricts the moving plate (51) to one side of the fastening plate (62), so that the moving plate (51) will not shift and maintain the slight negative pressure state of the disposable drainage bag (1).

7. The negative pressure drainage device for various chronic wound exudates as described in claim 2, characterized in that: It also includes a locking member (8) installed on the frame (3). The locking member (8) includes a pressure plate (81) installed on the bottom wall of the frame (3). A support spring (82) is provided at the bottom of the pressure plate (81). A connecting rod (83) is installed at the bottom of the pressure plate (81). A pull rope (84) is installed at one end of the connecting rod (83). A limiting block (85) is provided on one side of the bottom of the connecting frame (42). A retaining spring (86) is provided between the limiting block (85) and the inner wall of the bracket. One end of the pull rope (84) is fixedly connected to the outer wall of one side of the limiting block (85).

8. The negative pressure drainage device for various chronic wound exudates as described in claim 7, characterized in that: The tension spring (41) clamps the connecting frame (42) and the matching buckle (43) onto the frame (3). The matching buckle (43) can be pulled to open the opening on one side of the top of the frame (3), so that the disposable drainage bag (1) can be attached to the matching buckle (43).

9. The negative pressure drainage device for various chronic wound exudates as described in claim 8, characterized in that: When the frame (3) is clamped on the hospital bed, the pressure plate (81) is pressed and drives the connecting rod (83) to move. The movement of the connecting rod (83) drives the pulling rope (84) to move. The pulling rope (84) pulls the limiting block (85), causing the limiting block (85) to rotate and tilt to block the connecting frame (42) on one side.

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