Scar dilator
By designing a scar expander including a water bag, a first water inlet pipe, connecting pipe, sealing ball and spring, the problems of excessive length of the water injector pipe and poor sealing effect in the prior art are solved, and the segmented disassembly of the water injector pipe and effective sealing of water are realized to ensure stable skin growth.
Patent Information
- Application Number
- CN202420905885.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The water injection pipe of existing scar expanders is too long and is easily pulled and tear the suture mouth, and has poor sealing effect, which can easily lead to water overflow and affect the stable growth of the skin.
A scar expander including a water bag, a first water inlet pipe, a connecting pipe, a sealing ball and a spring is designed. The sealing ball and a spring are pushed by water pressure to achieve effective injection and sealing of water, and the water injection pipe can be disassembled in sections to avoid pulling caused by excessive length.
It effectively avoids the cleavage of the suture port caused by pulling the water injection pipe, and prevents water from overflowing by combining the sealing ball and spring, and ensures stable growth of the skin.
Smart Images
Figure CN222917956U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, in particular to a scar expander. Background Art
[0002] A scar is the final result of human wound repair and an important part of the human self-defense system. Usually, patients will have scars of varying degrees after the wound heals. Facing a large scar, if one wants to restore it, it is necessary to transplant redundant skin to the scar area, and to produce redundant skin, a scar expander is needed. The scar expander buries a water sac inside the skin next to the scar position, and then injects water into it to make it expand, so that the skin area increases. After a period of time, the water sac is removed, and the increased skin can cover the damaged area of the scar.
[0003] When the scar expander is in use, water needs to be added to the water sac at regular intervals to increase the volume of the water sac. Therefore, a section of water injection pipe is left outside the skin. The existing water injection pipe is directly placed outside, and the length of the water injection pipe is too long. Therefore, when dressing normally, the water injection pipe is easily pulled, resulting in the enlargement of the suture between the water injection pipe and the skin, causing secondary injury. At the same time, the existing expander has a poor sealing effect. When the water inside is squeezed, there is a risk of overflowing from the water inlet pipe. The overflow of water will cause the volume of the water sac to become smaller, so that the skin cannot grow as planned. Summary of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a scar expander to solve the problems raised in the above background art.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A scar expander includes a water bag. A first water inlet pipe is fixedly arranged on the surface of the water bag. A connecting pipe is fixedly arranged on the surface of the first water inlet pipe. An inlet assembly is arranged inside the connecting pipe. A threaded sleeve is threadedly arranged on the surface of the connecting pipe. A bearing is fixedly arranged on the front side of the threaded sleeve. A second water inlet pipe is fixedly arranged inside the bearing. A fixing assembly is arranged on the surface of the second water inlet pipe.
[0007] Preferably, the inlet assembly includes a spring lapped inside the connecting pipe. The rear end of the spring is fixedly connected to the first water inlet pipe, and a sealing ball is fixedly arranged at the front end of the spring.
[0008] Preferably, the fixing assembly includes a connecting block and a fixing clip. The connecting block is fixedly installed on the surface of the second water inlet pipe, and the fixing clip is fixedly installed on the surface of the connecting block.
[0009] Preferably, a cavity is formed inside the water bag, and a water inlet is formed on the surface of the water bag. The water inlet is fixedly connected to the water inlet end of the first water inlet pipe.
[0010] Preferably, the sealing ball and the spring are made of the same material, both made of stainless steel.
[0011] Preferably, the water bag and the first water inlet pipe are made of the same material, both made of silica gel.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: when injecting water into this scar expander, the water pressure will push the sealing ball to move backward and compress the spring, enabling water to enter the interior of the first water inlet pipe. After the water injection is completed, the spring rebounds to push the sealing ball back to its original position, blocking the connecting pipe. Then, rotate the threaded sleeve to separate the connecting pipe from the threaded sleeve, thereby separating the first water inlet pipe from the second water inlet pipe. This device can disassemble the water injection pipe in sections, avoiding the long water injection pipe being pulled, which may cause the suture opening to tear. At the same time, this device can prevent the water inside the water sac from overflowing, enabling the skin to grow stably. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is the orthographic isometric view of the structure of the present utility model;
[0014] Figure 2 is the right sectional view of the structure of the present utility model;
[0015] Figure 3 is Figure 2 the enlarged view of the structure at A of
[0016] In the figure: 1, water bag; 2, first water inlet pipe; 3, connecting pipe; 4, sealing ball; 5, spring; 6, second water inlet pipe; 7, threaded sleeve; 8, bearing; 9, cavity; 10, water inlet; 11, connecting block; 12, fixed clip. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0018] Refer to Figures 1-3, A scar expander, comprising a water bag 1. A cavity 9 is formed inside the water bag 1. An inlet 10 is formed on the surface of the water bag 1. The inlet 10 is fixedly connected to the water inlet end of the first water inlet pipe 2. The cavity 9 is used to store water, and the inlet 10 can inject water into the cavity 9. A first water inlet pipe 2 is fixedly arranged on the surface of the water bag 1. The water bag 1 and the first water inlet pipe 2 are made of the same material, both made of silicone material. The first water inlet pipe 2 and the water bag 1 made of silicone material can effectively avoid human rejection. A connecting pipe 3 is fixedly arranged on the surface of the first water inlet pipe 2. An inlet assembly is arranged inside the connecting pipe 3. The inlet assembly includes a spring 5 lapped inside the connecting pipe 3. The rear end of the spring 5 is fixedly connected to the first water inlet pipe 2. A sealing ball 4 is fixedly arranged at the front end of the spring 5. When water flows into the connecting pipe 3, it will squeeze the sealing ball 4 to move backward, so that the sealing ball 4 is located in the larger cavity of the connecting pipe 3, and the water can enter the first water inlet pipe 2 through the gap between the sealing ball 4 and the inner wall of the connecting pipe 3. After the water injection stops, the spring 5 rebounds to push the sealing ball 4 to move forward, so that the sealing ball 4 contacts the inner wall of the connecting pipe 3 to prevent water from flowing out. The sealing ball 4 and the spring 5 are made of the same material, both made of stainless steel material. The sealing ball 4 and the spring 5 made of stainless steel material can effectively avoid surface rust and wear, resulting in water flowing out. A threaded sleeve 7 is arranged on the surface of the connecting pipe 3 in a threaded manner. A bearing 8 is fixedly arranged on the front side of the threaded sleeve 7. A second water inlet pipe 6 is fixedly arranged inside the bearing 8. A fixing assembly is arranged on the surface of the second water inlet pipe 6. For this scar expander, when injecting water, the water pressure will push the sealing ball 4 to move backward and compress the spring 5, so that water can enter the inside of the first water inlet pipe 2. After the water injection is completed, the spring 5 rebounds to push the sealing ball 4 back to its original position to block the connecting pipe 3, and then rotate the threaded sleeve 7 to separate the connecting pipe 3 and the threaded sleeve 7, so that the first water inlet pipe 2 and the second water inlet pipe 6 can be separated. This device can disassemble the water injection pipe in sections to avoid the long water injection pipe being pulled, resulting in the suture opening being torn. At the same time, this device can prevent the water inside the water sac from overflowing, so that the skin can grow stably.
[0019] Specifically, the fixing assembly includes a connecting block 11 and a fixing clip 12. The connecting block 11 is fixedly installed on the surface of the second water inlet pipe 6, and the fixing clip 12 is fixedly installed on the surface of the connecting block 11. The connecting block 11 is clamped and fixed on the patient's clothes through the fixing clip 12, so as to fix the second water inlet pipe 6, avoiding the second water inlet pipe 6 being pulled during water injection, resulting in the patient's suture wound cracking.
[0020] During use: Rotate the threaded sleeve 7 on the surface of the connecting pipe 3 so that the threaded sleeve 7 is fixed to the connecting pipe 3, and the second water inlet pipe 6 and the connecting pipe 3 are fixed. Inject water into the second water inlet pipe 6. The water inside the second water inlet pipe 6 enters the inside of the connecting pipe 3. The water pressure pushes the sealing ball 4 to move backward and compress the spring 5, and then the water can enter the inside of the first water inlet pipe 2 through the gap inside the connecting pipe 3. The first water inlet pipe 2 sends the water into the cavity 9 of the water bag 1 through the water inlet 10. After the water injection is completed, the spring 5 rebounds to push the sealing ball 4 back to its original position, blocking the connecting pipe 3. Then rotate the threaded sleeve 7 to separate the connecting pipe 3 and the threaded sleeve 7, and separate the first water inlet pipe 2 and the second water inlet pipe 6.
[0021] In summary, for this scar expander, when injecting water, the water pressure will push the sealing ball 4 to move backward and compress the spring 5, allowing the water to enter the inside of the first water inlet pipe 2. After the water injection is completed, the spring 5 rebounds to push the sealing ball 4 back to its original position, blocking the connecting pipe 3. Then rotate the threaded sleeve 7 to separate the connecting pipe 3 and the threaded sleeve 7, so that the first water inlet pipe 2 and the second water inlet pipe 6 can be separated. This device can disassemble the water injection pipe in sections, avoiding the long water injection pipe being pulled, resulting in the suture opening being torn. At the same time, this device can prevent the water inside the water bag from overflowing, enabling the skin to grow stably.
[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A scar expander, comprising a water bag (1), characterized in that: A first water inlet pipe (2) is fixedly arranged on the surface of the water bag (1), a connecting pipe (3) is fixedly arranged on the surface of the first water inlet pipe (2), a water inlet assembly is arranged inside the connecting pipe (3), a threaded sleeve (7) is threadedly arranged on the surface of the connecting pipe (3), a bearing (8) is fixedly arranged on the front side of the threaded sleeve (7), a second water inlet pipe (6) is fixedly arranged inside the bearing (8), and a fixing assembly is arranged on the surface of the second water inlet pipe (6).
2. A scar expander according to claim 1, characterized in that: The water inlet assembly comprises a spring (5) overlapped and arranged inside the connecting pipe (3), the rear end of the spring (5) is fixedly connected to the first water inlet pipe (2), and the front end of the spring (5) is fixedly provided with a sealing ball (4).
3. The scar expander according to claim 1, characterized in that: The fixing assembly comprises a connection block (11) and a fixing clamp (12); the connection block (11) is fixedly mounted on the surface of the second water inlet pipe (6); and the fixing clamp (12) is fixedly mounted on the surface of the connection block (11).
4. The scar expander according to claim 1, characterized in that: The water bag (1) has a cavity (9) formed inside, and a water inlet (10) formed on the surface of the water bag (1). The water inlet (10) is fixedly connected to the water inlet end of the first water inlet pipe (2).
5. The scar expander according to claim 2, characterized in that: The sealing ball (4) and the spring (5) are made of the same material, both of which are made of stainless steel.
6. The scar expander according to claim 1, characterized in that: The water bag (1) and the first water inlet pipe (2) are made of the same material, both made of silica gel.