Minimally invasive suction equipment for giant lipoma

Abstract

The utility model provides minimally invasive suction equipment for giant lipoma, which is characterized in that the front end of a negative pressure driving cavity is connected with a liposuction tube, the side wall of the negative pressure driving cavity is provided with a negative pressure interface, and the negative pressure interface is used for being connected with an air suction device so as to generate negative pressure in the negative pressure driving cavity; the driving rod is located in the negative pressure driving cavity, the cutter rod is located in the liposuction tube, the front end of the driving rod is connected with the cutter rod, and the rear end of the driving rod is driven by the driving motor to rotate; a spiral blade is arranged at the front end of the cutter bar, and a liposuction opening is formed in the side wall of the liposuction tube corresponding to a rotating area of the spiral blade. According to the minimally invasive suction equipment provided by the utility model, fat can be sucked through the fat suction port, the fat entering the fat suction port is crushed by the spiral blade under the rotation action of the cutter bar driven by the driving motor, and then the fat can be adsorbed and discharged to the rear end by the negative pressure driving cavity under the negative pressure action of the negative pressure interface; therefore, the fat is prevented from blocking the liposuction tube, and the refinement efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of minimally invasive liposuction, in particular to a minimally invasive suction device for giant lipomas, which is used for minimally invasive suction of giant lipomas. Background Art

[0002] Lipoma is a common benign soft tissue tumor, mainly composed of mature fat cells. Multiple lipomas are mainly distributed throughout the body or concentrated in a certain part of the body surface, with varying sizes. The tumor with a minimum width greater than 50mm is called a giant lipoma. Giant lipomas are generally grown from small tumors, mostly caused by external stimuli, so they are easy to concentrate on the body surface. For example, lipomas that are common on the limbs and trunk have an uneven appearance, like a unicorn arm, which is ugly and terrifying, affecting normal social communication and causing pain to lipoma patients. In addition, lipomas on the back can cause tenderness, which greatly affects the patient's work and life.

[0003] There is no drug that can treat or cure lipomas. To relieve the pain of patients, surgical excision is generally used in clinic. Traditional direct vision excision surgery requires peeling off the subcutaneous tissue around the tumor to achieve full exposure, resulting in a long incision. For giant lipomas, the incision is larger than 100mm, and there will be obvious scar defects after surgery. For patients with lipomas that often occur on the limbs and trunk, if the lipoma is to be completely removed, many scars will be left at the location where the lipoma grows, which cannot eliminate the impact on appearance.

[0004] Negative pressure liposuction needle minimally invasive treatment of lipoma is a more aesthetic minimally invasive treatment method. During the operation, such suction devices as those with announcement number CN204542993U are generally used for suction. Unfortunately, such suction devices can only be used for conventional lipoma suction and cannot be directly used for giant lipoma suction.

[0005] Giant lipomas are large in size, and when suction is performed, the suction tube is easily blocked, and the negative pressure suction fails. Therefore, conventional negative pressure liposuction tube needle lipoma suction devices cannot achieve giant lipoma suction.

[0006] If a giant lipoma is to be removed by suction, it is necessary to break the lipoma up and then suck it out through another opening in the clinic. If a blockage is encountered, the negative pressure liposuction tube needle method needs to suspend liposuction, stop using the negative pressure equipment, remove the liposuction tube, and then use the puncture needle to clear the liposuction tube, which greatly delays the operation time. This surgical procedure is time-consuming and labor-intensive, increases the anesthesia time, and increases the risk of surgery. For lipomas that are oppressed on a daily basis, such as the back, the capsule thickens and adheres to the outer membrane skin tissue. The fiber content of the lipoma increases, making it difficult to remove. It is necessary to first use a peeling knife (CN200966639Y) to peel the skin from the tumor, and then remove it by suction, which is more troublesome to operate.

[0007] In addition to giant lipomas, patients with giant lipomas often have other small lipomas around them. Due to the anesthesia time and the physical strength of medical staff, only one giant lipoma can be treated at a time, and all lipomas cannot be solved with one operation. Patients need multiple operations, which not only increases the cost of surgery for patients, but also increases the risk of infection from multiple operations. At the same time, if the lipoma is not completely broken up, the equipment used in liposuction often does not completely suck out the lipoma, causing postoperative recurrence; for harder lipomas, such as fibrolipomas, ordinary suction tubes or suction devices are difficult to suck out completely, causing postoperative recurrence and increasing patient pain. For this reason, there is an urgent need for a negative pressure liposuction tube device that is efficient, thoroughly suctioned, and simple to use. Summary of the invention

[0008] The technical problem to be solved by the embodiments of the utility model is to provide a minimally invasive suction device for giant lipomas, so as to solve the problem that the pipeline of the existing liposuction device is easily blocked.

[0009] In order to solve the above technical problems, the utility model provides a minimally invasive aspiration device for giant lipomas, comprising a negative pressure driving chamber, a driving rod, a driving motor, a knife rod and a liposuction tube, wherein the front end of the negative pressure driving chamber is connected to the liposuction tube, the rear end of the negative pressure driving chamber is connected to the driving motor, and a negative pressure interface is provided on the side wall of the negative pressure driving chamber, and the negative pressure interface is used to connect with a suction device to generate negative pressure in the negative pressure driving chamber; the driving rod is located in the negative pressure driving chamber, the knife rod is located in the liposuction tube, and the front end of the driving rod is connected to the knife rod, and the rear end of the driving rod is driven to rotate by the driving motor; a spiral blade is provided at the front end of the knife rod, and a liposuction port is provided on the side wall of the liposuction tube corresponding to the rotating area of ​​the spiral blade; the inner wall of the negative pressure driving chamber is a cylindrical structure, and a rotating support structure is provided on the driving rod to be rollingly connected to the inner wall of the negative pressure driving chamber.

[0010] The rotation support structure includes a ball fixing tube connected to the driving rod, a preload spring arranged in the ball fixing tube and a ball installed on the tube mouth of the ball fixing tube. The ball is supported by the preload spring to be rollingly connected with the inner wall of the negative pressure driving chamber.

[0011] The rotation support structures include three structures, which are arranged along the circumference of the driving rod at an angle of 120 degrees to each other.

[0012] The liposuction port is in an oblong shape and is arranged along the axial direction of the liposuction tube. The length of the spiral blade in the axial direction of the liposuction tube is greater than the length of the liposuction port.

[0013] The distance between the negative pressure interface and the driving motor is smaller than the distance between the rotation support structure and the driving motor, so that the negative pressure interface is positioned further back than the rotation support structure.

[0014] The spiral blade is connected to the blade rod by welding, or the spiral blade is formed on the blade rod by integral molding.

[0015] The spiral blade and the liposuction port are both located at the front end of the liposuction tube.

[0016] The diameter of the ball is slightly smaller than the inner diameter of the ball fixing tube, so that the ball can be retracted into the ball fixing tube.

[0017] The end of the liposuction tube is in a round head shape.

[0018] The distance between the liposuction port and the end of the liposuction tube is no more than 10 mm.

[0019] The minimally invasive suction device for giant lipoma provided by the utility model can suck fat through the liposuction port, and the fat entering the liposuction port is broken up by the spiral blade under the rotation of the knife rod driven by the driving motor, so that the negative pressure driving chamber can absorb and discharge the fat to the rear end under the negative pressure of the negative pressure interface, thereby avoiding the clogging of the liposuction tube by the fat, and greatly improving the fine efficiency; under the action of the spring ball, the resistance of the driving rod to rotate can be greatly reduced, and the driving rod can be ensured to rotate along the axis of the negative pressure driving chamber without jumping or vibration during the rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a minimally invasive aspiration device for giant lipomas according to an embodiment of the utility model.

[0021] Figure 2 This is a schematic diagram of the structure of a minimally invasive aspiration device for giant lipomas according to an embodiment of the utility model.

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of a minimally invasive aspiration device for giant lipomas according to an embodiment of the utility model.

[0023] Figure 4 for Figure 3 A partial enlarged schematic diagram of .

[0024] Figure 5 This is a schematic diagram of the partial structure of a minimally invasive aspiration device for giant lipomas according to an embodiment of the utility model.

[0025] Figure 6 for Figure 5 A partial enlarged schematic diagram of .

[0026] In the figure:

[0027] 1. Negative pressure driving chamber; 11. Negative pressure interface;

[0028] 2. Drive motor;

[0029] 3. Driving rod;

[0030] 4. Tool bar;

[0031] 5. Liposuction tube; 51. Liposuction port;

[0032] 6. Spiral blade;

[0033] 7. Rotation support structure; 71. Ball fixing tube; 72. Preload spring; 73. Ball. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] like Figure 1-6As shown, the utility model provides a minimally invasive suction device for giant lipoma, comprising a negative pressure driving chamber 1, a driving rod 3, a driving motor 2, a knife rod 4 and a liposuction tube 5, wherein the front end of the negative pressure driving chamber 1 is connected to the liposuction tube 5, the inner diameter of the negative pressure driving chamber is much larger than the outer diameter of the liposuction tube 5, and the negative pressure driving chamber and the liposuction tube 5 are both in a straight cylinder shape, and the inner wall of the liposuction tube 5 is also in a circular shape; the rear end of the negative pressure driving chamber 1 is connected to the driving motor 2, and a negative pressure interface 11 is provided on the side wall of the negative pressure driving chamber 1, and the negative pressure interface 11 is used to connect with a suction device to generate negative pressure in the negative pressure driving chamber 1; the driving rod 3 is located in the negative pressure driving chamber 1 1, the driving rod 3 is a straight rod with certain strength and anti-twist; the knife rod 4 is located in the liposuction tube 5, and the front end of the driving rod 3 is connected to the knife rod 4, the guide rod 4 and the driving rod 3 will not rotate relative to each other, and the rear end of the driving rod 3 is driven to rotate by the driving motor 2, thereby driving the guide rod 4 to rotate; a spiral blade 6 is provided at the front end of the knife rod 4, and a liposuction port 51 is provided on the side wall of the liposuction tube 5 corresponding to the rotation area of ​​the spiral blade 6; the inner wall of the negative pressure driving chamber 1 is a cylindrical structure, and a rotating support structure 7 is provided on the driving rod 3 to be rollingly connected with the inner wall of the negative pressure driving chamber 1.

[0038] The rotation support structure 7 includes a ball fixing tube 71 connected to the driving rod 3, a preload spring 72 arranged in the ball fixing tube 71, and a ball 73 installed on the tube mouth of the ball fixing tube 71, and the ball 73 is supported by the preload spring 72 to be rollingly connected with the inner wall of the negative pressure driving chamber 1. Through the structural design of the rotation support structure 7, the driving rod 3 can be rotationally supported, which can not only reduce the rotational vibration of the driving rod 3, but also reduce the friction between the rotation support structure 7 and the inner wall of the negative pressure driving chamber 1.

[0039] The rotating support structures 7 have three parts, which are arranged at an angle of 120 degrees to each other along the circumference of the driving rod, thus forming a three-point support structure arrangement, which not only supports the driving rod 3 with the most reasonable number and angle, but also makes the driving rod 3 more stable.

[0040] The liposuction port 51 is in an oblong shape and is arranged along the axial direction of the liposuction tube. The length of the spiral blade in the axial direction of the liposuction tube is greater than the length of the liposuction port.

[0041] The distance between the negative pressure interface 11 and the driving motor 2 is smaller than the distance between the rotating support structure 7 and the driving motor, so that the negative pressure interface is positioned further back than the rotating support structure.

[0042] The spiral blade 6 is connected to the blade rod 4 by welding, or the spiral blade 4 is formed on the blade rod 4 by integral molding.

[0043] The spiral blade 4 and the liposuction port 51 are both located at the front end of the liposuction tube 5 .

[0044] The diameter of the ball 73 is slightly smaller than the inner diameter of the ball fixing tube, so that the ball can be retracted into the ball fixing tube. The ball 73 has a larger telescopic range, so that the entire rotating support structure 7 is easier to install in the negative pressure driving chamber 1.

[0045] The end of the liposuction tube 5 is in a rounded shape.

[0046] The distance between the liposuction port 51 and the end of the liposuction tube 5 is no more than 10 mm.

[0047] The minimally invasive suction device for giant lipoma provided by the utility model can suck fat through the liposuction port, and the fat entering the liposuction port is broken up by the spiral blade under the rotation of the knife rod driven by the driving motor, so that the negative pressure driving chamber can absorb and discharge the fat to the rear end under the negative pressure of the negative pressure interface, thereby avoiding the clogging of the liposuction tube by the fat, and greatly improving the fine efficiency; under the action of the spring ball, the resistance of the driving rod to rotate can be greatly reduced, and the driving rod can be ensured to rotate along the axis of the negative pressure driving chamber without jumping or vibration during the rotation.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A minimally invasive aspiration device for giant lipomas, characterized in that: It includes a negative pressure driving chamber, a driving rod, a driving motor, a knife rod and a liposuction tube, wherein the front end of the negative pressure driving chamber is connected to the liposuction tube, the rear end of the negative pressure driving chamber is connected to the driving motor, and a negative pressure interface is provided on the side wall of the negative pressure driving chamber, and the negative pressure interface is used to connect with a suction device to generate negative pressure in the negative pressure driving chamber; the driving rod is located in the negative pressure driving chamber, the knife rod is located in the liposuction tube, and the front end of the driving rod is connected to the knife rod, and the rear end of the driving rod is driven to rotate by the driving motor; a spiral blade is provided at the front end of the knife rod, and a liposuction port is provided on the side wall of the liposuction tube corresponding to the rotating area of ​​the spiral blade; the inner wall of the negative pressure driving chamber is a cylindrical structure, and a rotating support structure is provided on the driving rod to be rollingly connected to the inner wall of the negative pressure driving chamber.

2. The minimally invasive aspiration device according to claim 1, characterized in that: The rotation support structure includes a ball fixing tube connected to the driving rod, a preload spring arranged in the ball fixing tube and a ball installed on the tube mouth of the ball fixing tube. The ball is supported by the preload spring to be rollingly connected with the inner wall of the negative pressure driving chamber.

3. The minimally invasive aspiration device according to claim 1, characterized in that: The rotation support structures include three structures, which are arranged along the circumference of the driving rod at an angle of 120 degrees to each other.

4. The minimally invasive aspiration device according to claim 1, characterized in that: The liposuction port is in an oblong shape and is arranged along the axial direction of the liposuction tube. The length of the spiral blade in the axial direction of the liposuction tube is greater than the length of the liposuction port.

5. The minimally invasive aspiration device according to claim 1, characterized in that: The distance between the negative pressure interface and the driving motor is smaller than the distance between the rotation support structure and the driving motor, so that the negative pressure interface is positioned further back than the rotation support structure.

6. The minimally invasive aspiration device according to claim 1, characterized in that: The spiral blade is connected to the blade rod by welding, or the spiral blade is formed on the blade rod by integral molding.

7. The minimally invasive aspiration device according to claim 1, characterized in that: The spiral blade and the liposuction port are both located at the front end of the liposuction tube.

8. The minimally invasive aspiration device according to claim 2, characterized in that: The diameter of the ball is smaller than the inner diameter of the ball fixing tube, so that the ball can be retracted into the ball fixing tube.

9. The minimally invasive aspiration device according to claim 2, characterized in that: The end of the liposuction tube is in a round head shape.

10. The minimally invasive aspiration device according to claim 2, characterized in that: The distance between the liposuction port and the end of the liposuction tube is no more than 10 mm.

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