Device for removing tissue between superficial fascia

Abstract

The invention provides a superficial fascia tissue removing device. The superficial fascia tissue removing device comprises an outer sleeve assembly and an inner sleeve assembly arranged in the outer sleeve assembly. The outer sleeve assembly is of an olive-shaped cover body structure which is formed by symmetrically fixing a porous open type fixing cover and a closed type fixing cover. The cover body structure is provided with a fixing pipe, and one end of the fixing pipe extends to be flush with and communicated with one side of the interior of the cover body structure. The inner sleeve assembly comprises a rotating shaft which is inserted into the fixing pipe and extends into the cover body structure, a cutter located in the cover body structure is arranged on the periphery of one end of the rotating shaft, and a certain interval is formed between the cutter and the cover body structure; according to the superficial fascia tissue removing device, due to the design of the porous open type fixing cover, only part of tissue is extruded into the outer sleeve assembly, and uncontrollable excision caused by excessive entering of the tissue is avoided. Meanwhile, the gap between the excision knife and the cover body structure ensures that the tissue entering the outer sleeve assembly cannot be completely excided.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a superficial fascia interstitial tissue removal device. Background Art

[0002] In plastic surgery and dermatology, it is very common to remove the appendages under the dermis. Existing technologies mainly rely on surgical excision, laser treatment, and negative pressure liposuction. However, these traditional methods have exposed many problems in practical applications, especially in the precise control of cutting depth. They are very likely to cause accidental damage to the dermis or deep tissues, seriously affecting the surgical effect and the quality of postoperative recovery of patients.

[0003] Further analysis shows that the difficulty of existing equipment in accurately controlling the cutting depth is the key factor leading to the above problems. For example, during surgical resection, doctors only rely on experience and visual inspection to judge the cutting depth, which is difficult to be accurate when facing patients with large individual differences. The above shortcomings limit the safety and effectiveness of the surgery, and there is an urgent need for a new device that can accurately control the cutting depth to solve the defects of the existing technology. Summary of the invention

[0004] The present invention proposes a device for removing superficial interfascial tissue, which solves the significant defects in the prior art of removing subdermal accessory tissue in accurately controlling the cutting depth, which can easily cause accidental damage to the dermis or deep tissue, seriously affecting the surgical effect and the patient's postoperative recovery quality.

[0005] The technical solution of the present invention is achieved in this way:

[0006] A superficial interfascial tissue removal device comprises an outer sleeve component and an inner sleeve component arranged inside the outer sleeve component; the outer sleeve component is an olive-shaped cover structure symmetrically fixed by a porous open fixed cover and a closed fixed cover, and the cover structure is provided with a fixed tube with one end extending to be flush with and communicated with one side of the inner part thereof; the inner sleeve component comprises a rotating shaft inserted into the fixed tube and extending into the cover structure, and a resecting knife located inside the cover structure is arranged on the periphery of one end of the rotating shaft, and a gap is provided between the resecting knife and the cover structure;

[0007] It also includes a handle whose side is fixed to the fixed tube away from the cover structure, the rotating shaft extends into the handle away from the cutting knife, and the handle is provided with a driving motor whose output side is fixed to the rotating shaft.

[0008] Furthermore, the porous open fixed cover is a grille / grid type cover.

[0009] Furthermore, the cutting knife is a grid / mesh cutting knife composed of a plurality of blade bodies in the form of arc-shaped strips or ribs and adapted to the inner contour of the cover structure.

[0010] Furthermore, the handle has a hollow hole inside for heat dissipation of the drive motor. The drive motor is a brushless motor, and its periphery is fixed inside the hollow hole.

[0011] Furthermore, a connecting sleeve is provided on the side of the hollow hole away from the cover structure, and a negative pressure chamber is provided in the connecting sleeve. The rotating axis is a hollow axis extending into the negative pressure chamber; a negative pressure tube is provided on the side of the handle away from the cover structure, which is inserted into the tail end of the connecting sleeve and extends into the negative pressure chamber.

[0012] Furthermore, a bearing is provided in the negative pressure chamber, and the bearing is fixed on the outside of the hollow shaft.

[0013] Furthermore, the negative pressure chamber is arranged with multiple steps, and the negative pressure chamber is provided with multiple sealing members, and the periphery of each sealing sleeve abuts against two adjacent steps of the negative pressure chamber respectively.

[0014] Furthermore, there are at least three sealing members, namely, a sealing sleeve a, a sealing sleeve b and a sealing sleeve c having a through hole; one end of the sealing sleeve a is close to the bearing, and the through hole of the sealing sleeve a is gradually expanded corresponding to the outer periphery of the hollow shaft end; the two ends of the sealing sleeve b are respectively abutted against the adjacent sections of the sealing sleeve a and the sealing sleeve c, and the through hole of the sealing sleeve b is aligned with the through holes on the adjacent sides of the sealing sleeve a and the sealing sleeve c; the side of the sealing sleeve c away from the sealing sleeve b extends into the negative pressure tube, and the through hole of the sealing sleeve c is tapered.

[0015] Beneficial effects of the technical solution provided by this application:

[0016] The porous open fixed cover design of the superficial interfascial tissue removal device allows only part of the tissue to be squeezed into the outer cover assembly, avoiding uncontrollable resection caused by excessive tissue entry. At the same time, the spacing between the resection knife and the cover structure ensures that the tissue entering the inner part of the outer cover assembly will not be completely removed. The operator can flexibly adjust the position of the device according to actual needs, change the depth and position of the tissue entering the porous structure, thereby accurately controlling the amount of tissue removed, effectively avoiding accidental damage to the dermis or deep tissue, and significantly improving the safety and accuracy of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the superficial fascia interstitial tissue removal device of the present invention;

[0019] Figure 2It is a partial enlarged schematic diagram of the outer sleeve component and the inner sleeve component of the present invention;

[0020] Figure 3 It is a schematic cross-sectional view of the handle of the present invention;

[0021] Figure 4 It is a partial cross-sectional schematic diagram of the connecting sleeve of the present invention.

[0022] In the figure: 10 outer sleeve assembly, 11 porous open fixed cover, 12 closed fixed cover, 13 fixed tube; 20 inner sleeve assembly, 21 rotating shaft, 22 resection knife; 30 handle, 31 driving motor, 32 hollow hole, 33 control board; 40 connecting sleeve, 41 negative pressure chamber, 42 negative pressure tube, 43 bearing, 44 sealing element, 441 sealing sleeve a, 442 sealing sleeve b, 443 sealing sleeve c. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Reference Figure 1-4The superficial interfascial tissue removal device comprises an outer sleeve component 10 and an inner sleeve component 20 arranged inside the outer sleeve component 10; the outer sleeve component 10 is an olive-shaped cover structure symmetrically fixed by a porous open fixed cover 11 and a closed fixed cover 12, and a fixed tube 13 is provided on the cover structure, one end of which extends to be flush with and communicated with one side of the inner side; the inner sleeve component 20 comprises a rotating shaft 21 inserted into the fixed tube 13 and extending to the inside of the cover structure, and a resection knife 22 is provided on the periphery of one end of the rotating shaft 21, and there is a gap between the resection knife 22 and the cover structure; and also comprises a handle 30 fixed to the side of the fixed tube 13 away from the cover structure, and the side of the rotating shaft 21 away from the resection knife 22 extends into the handle 30, and a driving motor 31 is provided in the handle 30, and the output side is fixed to the rotating shaft 21. During the operation, the cover structure of the device is placed in the target tissue area, and the tissue is squeezed into the inside of the cover through the partial opening of the porous open fixed cover 11. The driving motor 31 drives the rotating shaft 21 and the cutting knife 22 to rotate, and the cutting knife 22 cuts the entered tissue inside the cover. Since there is a gap between the cutting knife 22 and the cover structure, only part of the tissue is removed, and the unremoved tissue remains outside the cover. The operator can move the device appropriately according to the amount and position of tissue to be removed, and change the depth and position of the tissue entering the porous open fixed cover 11, thereby achieving precise control of the amount of tissue removed and the cutting depth. This design allows the resection range to be flexibly adjusted during the operation, avoiding excessive or insufficient resection, and improving the accuracy and safety of the operation.

[0025] In some embodiments, the porous open fixed cover 11 is a grid / grid-type cover body, and this improvement significantly enhances the controllability and uniformity of tissue entry. The grid / grid-type structure allows the tissue to be more evenly distributed inside the cover body when entering the outer sleeve assembly 10, avoiding uneven resection caused by irregular tissue entry. At the same time, this formatted hole layout provides the operator with more precise control of the depth and position of tissue entry, further improving the accuracy and safety of the operation, and ensuring that the tissue resection operation can be performed stably and efficiently in a complex tissue environment.

[0026] In some embodiments, the resection knife 22 is a grid / grid type resection knife composed of a plurality of arc-shaped strips or rib-shaped blade bodies adapted to the inner contour of the cover structure. This grid / grid type resection knife can be adapted to the grid / grid type structure of the porous open fixed cover 11, so that when resecting tissue, only a specific part of the tissue is resected, and the unresected tissue is still retained outside the cover, further avoiding the phenomenon of over-resection or under-resection. At the same time, this design allows the operator to more flexibly control the resection range and depth, improving the safety and effect of the operation.

[0027] In some embodiments, the handle 30 has a hollow hole 32 for heat dissipation of the drive motor, and the drive motor 31 is a brushless motor, and its periphery is fixed inside the hollow hole 22. The internal structure of the handle 30 is further optimized by adding a hollow hole 32 for heat dissipation of the drive motor 31, and using a brushless motor as a power source, which is tightly fixed inside the hollow hole 32. This improvement effectively solves the problem of unstable performance of the drive motor 31 caused by overheating during long-term operation, and ensures the continuity and accuracy of the surgical operation. The brushless motor is convenient to use. The tail end of the rotating shaft can be connected to the negative pressure device later, and the use of the negative pressure device and the use of the drive motor 31 are avoided. Interference.

[0028] In some embodiments, a connecting sleeve 40 is provided on the side of the hollow hole 32 away from the cover structure, and a negative pressure chamber 41 is provided in the connecting sleeve 40, and the rotating shaft 21 is a hollow shaft extending into the negative pressure chamber 41; a negative pressure tube 42 is provided on the side of the handle 30 away from the cover structure, which is inserted into the tail end of the connecting sleeve 40 and extends into the negative pressure chamber 41, and the negative pressure tube 42 is connected to an external negative pressure machine. The external negative pressure machine generates negative pressure in the negative pressure chamber 41 through the negative pressure tube 42, and the tissue debris generated by cutting is sucked and removed in real time through the inner cavity of the hollow rotating shaft 21. This improvement enables the device to have a negative pressure auxiliary function, which can attract and remove the tissue debris generated by cutting in real time during tissue resection, keep the surgical area clean and clear, and further improve the accuracy and safety of the operation. The introduction of negative pressure also helps to stabilize the target tissue, making it difficult to shift during the resection process, ensuring the continuity and stability of the resection operation, while reducing the accumulation of tissue fluid during the operation, reducing the risk of infection, and providing a more ideal surgical environment for doctors.

[0029] In some embodiments, a bearing 43 is provided in the negative pressure chamber 41, and the bearing 43 is fixed on the outside of the hollow shaft. The additional connecting sleeve 40 and the negative pressure chamber 41 give the device a negative pressure auxiliary function, and the introduction of the bearing 43 significantly improves the rotational stability of the hollow rotating shaft 21. The connecting sleeve 40 not only plays a connecting role, but also cooperates with the negative pressure chamber 41 to form a relatively sealed environment. The bearing 43 is fixed to the outside of the hollow rotating shaft 21, which not only supports the high-speed rotation of the rotating shaft 21, but also plays a sealing role to a certain extent. Since the hollow rotating shaft 21 needs to rotate and the negative pressure tube 42 remains stationary, absolute sealing is difficult to achieve, but the bearing 43 effectively prevents the leakage of tissue debris and liquid in the negative pressure chamber 41 by reducing the gap and friction, while avoiding the large amount of inhalation of external air, ensuring the efficient operation of the negative pressure system.

[0030] In some embodiments, the negative pressure chamber 41 is arranged with multiple steps, and the negative pressure chamber 41 is provided with multiple seals 44, and the periphery of each sealing sleeve 44 abuts against two adjacent steps of the negative pressure chamber 41. This design significantly enhances the sealing effect and effectively prevents the leakage of negative pressure in the negative pressure chamber 41. The staggered docking of the multiple steps and the seals 44 forms multiple sealing barriers. Even if a certain seal 44 has a slight leak, the subsequent seals 44 can continue to play a role, ensuring the stable operation of the negative pressure system. At the same time, this structural design adapts to the rotation characteristics of the hollow rotating shaft 21 to a certain extent, avoids the problem of increased rotation resistance caused by absolute sealing, and ensures the efficient operation of the device.

[0031] In some embodiments, the sealing member 44 is at least three, namely, a sealing sleeve a441 with a through hole, a sealing sleeve b442, and a sealing sleeve c443; wherein one end of the sealing sleeve a441 is close to the bearing 43, and the through hole of the sealing sleeve a441 corresponds to the outer periphery of the hollow shaft end and is gradually expanded; the two ends of the sealing sleeve b442 are respectively abutted against the adjacent sections of the sealing sleeve a441 and the sealing sleeve c443, and the through hole of the sealing sleeve b442 is aligned with the through holes on the adjacent sides of the sealing sleeve a441 and the sealing sleeve c443; the side of the sealing sleeve c443 away from the sealing sleeve b442 extends into the negative pressure tube 42, and the through hole of the sealing sleeve c443 is in a reduced shape. One end of the sealing sleeve a441 is close to the bearing 43, which helps to reduce the air flow at the bearing 43 and reduce air leakage. The through hole of the sealing sleeve b442 is aligned with the through holes on the adjacent sides of the sealing sleeve a441 and the sealing sleeve c443, ensuring smooth airflow. The through hole of the sealing sleeve a441 is gradually expanded corresponding to the outer periphery of the hollow shaft end, and the through hole of the sealing sleeve c443 is reduced, so that the air contracts after expansion, increasing the flow rate, thereby improving the negative pressure effect. This multi-stage sealing design significantly enhances the sealing performance of the negative pressure chamber 41, effectively preventing negative pressure leakage, and at the same time adapting to the rotation characteristics of the hollow rotating shaft 21, ensuring the efficient operation of the device.

[0032] In some embodiments, a control panel 33 is provided on one side of the hollow hole 32, and the control panel 33 is electrically connected to the drive motor 31 and wirelessly connected to the external negative pressure machine. This design realizes intelligent control of the device. The control panel 33 can accurately adjust the speed of the drive motor 31, thereby controlling the rotation speed of the resection knife 22 to meet the resection requirements of different tissues. At the same time, through wireless connection, the control panel 33 can remotely monitor and adjust the working state of the negative pressure machine, optimize the negative pressure intensity and flow rate, and ensure the efficient removal of tissue debris. This integrated control method not only improves the accuracy and safety of the operation, but also simplifies the operation process, allowing doctors to focus more on the operation itself. The control panel 33 monitors the operating parameters of the drive motor 31 in real time, such as speed, temperature, etc., to ensure its stable operation. At the same time, according to the needs of the operation, the doctor can adjust the motor speed through the control panel 33 to change the cutting speed and strength of the resection knife 22. For the negative pressure system, the control panel 33 communicates with the external negative pressure machine through wireless signals, and dynamically adjusts the negative pressure intensity according to the amount of debris generated by tissue resection and the actual situation of the surgical area, ensuring that the negative pressure chamber 41 always maintains a suitable negative pressure environment, effectively attracting and removing tissue debris, and avoiding contamination and infection risks in the surgical area. In addition, the control panel 33 can also record relevant data during the operation to provide a reference for postoperative evaluation and optimization of surgical plans.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A superficial fascial interstitial tissue removal device, characterized in that: The invention comprises an outer sleeve component (10) and an inner sleeve component (20) arranged inside the outer sleeve component (10); the outer sleeve component (10) is an olive-shaped cover structure symmetrically fixed by a porous open fixed cover (11) and a closed fixed cover (12); the cover structure is provided with a fixed tube (13) with one end extending to be flush with and communicated with one side of the inner part of the cover structure; the inner sleeve component (20) comprises a rotating shaft (21) inserted into the fixed tube (13) and extending into the cover structure; a cutting knife (22) located inside the cover structure is arranged on the periphery of one end of the rotating shaft (21); and a gap is provided between the cutting knife (22) and the cover structure; The invention also comprises a handle (30) fixed to the side of the fixing tube (13) away from the cover structure, the rotating shaft (21) extending into the handle (30) away from the cutting blade (22), and a driving motor (31) whose output side is fixed to the rotating shaft (21) is provided in the handle (30).

2. The superficial fascia interstitial tissue removal device according to claim 1, characterized in that: The porous open fixed cover (11) is a grille / grid type cover.

3. The superficial fascia interstitial tissue removal device according to claim 1, characterized in that: The cutting knife (22) is a grid / mesh cutting knife composed of a plurality of blade bodies in the form of arc strips or ribs, adapted to the inner contour of the cover structure, and there is a gap between the grid / mesh cutting knife and the cover structure.

4. The superficial fascia interstitial tissue removal device according to claim 1, characterized in that: The handle (30) has a hollow hole (32) inside for heat dissipation of the drive motor. The drive motor (31) is a brushless motor, and its periphery is fixed inside the hollow hole (22).

5. The superficial fascia interstitial tissue removal device according to claim 4, characterized in that: A connecting sleeve (40) is provided on the side of the hollow hole (32) away from the cover structure, a negative pressure chamber (41) is provided in the connecting sleeve (40), and the rotating shaft (21) is a hollow shaft extending into the negative pressure chamber (41); a negative pressure tube (42) is provided on the side of the handle (30) away from the cover structure, the negative pressure tube being inserted into the rear end of the connecting sleeve (40) and extending into the negative pressure chamber (41).

6. The superficial fascia interstitial tissue removal device according to claim 5, characterized in that: A bearing (43) is provided in the negative pressure chamber (41), and the bearing (43) is fixed on the outside of the hollow shaft.

7. The superficial fascia interstitial tissue removal device according to claim 6, characterized in that: The negative pressure chamber (41) is arranged in a multi-step manner. The negative pressure chamber (41) is provided with a plurality of sealing members (44). The periphery of each sealing sleeve (44) abuts against two adjacent steps of the negative pressure chamber (41).

8. The superficial fascia interstitial tissue removal device according to claim 7, characterized in that: The sealing members (44) are at least three in number, namely, a sealing sleeve a (441) having a through hole, a sealing sleeve b (442), and a sealing sleeve c (443); one end of the sealing sleeve a (441) is close to the bearing (43), and the through hole of the sealing sleeve a (441) is gradually expanded relative to the outer periphery of the hollow shaft end; the two ends of the sealing sleeve b (442) are respectively abutted against the adjacent sections of the sealing sleeve a (441) and the sealing sleeve c (443), and the through hole of the sealing sleeve b (442) is aligned with the through holes on the adjacent sides of the sealing sleeve a (441) and the sealing sleeve c (443); the side of the sealing sleeve c (443) away from the sealing sleeve b (442) extends into the negative pressure tube (42), and the through hole of the sealing sleeve c (443) is reduced in size.

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