Eyelid fat filling extraction and injection needle

Abstract

The eyelid fat filling extraction and injection needle comprises a needle base part and a needle head part, the needle head part is arranged on one side of the needle base part, the needle head part comprises a hollow needle head, a hemispherical head part is arranged at the end of the hollow needle head, the hollow needle head can be in a linear shape or a circular arc shape, and an oval side hole is further formed in one side of the end of the hollow needle head. The diameter of the needle opening of the suction needle is small, meanwhile, the number of the side holes is small, the side holes are centrally located on the same side of the hollow needle head, the operation accuracy and safety are high when the arc-shaped hollow needle head is located at the attaching position of the outer arc face and eyelid tissue and at the local fine position, and the operation position can be flexibly selected and replaced in the operation process; and the functions of grease injection and grease pumping can be realized in the same needle, so that the operation is convenient and time-saving.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an eyelid fat filling and injection needle. Background Art

[0002] Eyelid fat filling and post-filling shape adjustment and reshaping are a common type of plastic surgery. During the operation, the body's own fat tissue is generally extracted first, and then implanted into the eyelid after special processing and treatment. This can make the local skin plump and elastic. When filling the eyelids with fat and reshaping the shape after filling, a fat injection needle is required to fill or peel and suction the filler.

[0003] However, existing aspiration needles have the following problems: 1) The aspiration needle has a large caliber, a long needle body, and many side holes. The multiple side holes are distributed on different side walls of the needle head, and the opening directions are different. The damage to local delicate parts during operation is difficult to control, imprecise, and unsafe. 2) Existing extraction and injection needles are all straight-line, which cannot fit the natural curved surface structure of the eyelid. The operation blind spot is large and cannot meet the needs of different local surgical sites. It is unsafe and imprecise. 3) The lipoinjection and liposuction functions are two separate needles. Repeated needle changes in local delicate parts will cause more obvious damage and increase unnecessary surgical time. 4) The tail end of the extraction needle is flat, and it is easy for the instrument to slip out of the hand and splash liquid to damage the patient's orbital tissue or even the eyeball during operation.

[0004] Therefore, those skilled in the art are in urgent need of developing an eyelid fat filling injection needle that can solve the problems of the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide an eyelid fat filling and extraction needle to solve the problems raised in the above-mentioned background technology, such as the currently used extraction needles have a large needle diameter, a long needle body, multiple side holes, and multiple side holes are distributed on different side walls of the needle head with different opening directions, making it difficult to control the damage to local delicate parts during operation, inaccurate and unsafe; the extraction needles are all straight and cannot fit the natural curved surface structure of the eyelid, and have a large operation blind spot, and cannot meet the needs of different local surgical points, which is unsafe and imprecise; the fat injection and liposuction functions are two separate needles, and the damage to local delicate parts caused by repeated needle changes is more obvious and more, which increases unnecessary surgical time; the tail end of the extraction needle is flat, and it is easy for the instrument to slip out of the hand and splash liquid to damage the patient's orbital tissue or even the eyeball during operation.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An eyelid fat filling and extraction needle comprises a needle holder and a needle head, wherein the needle head is arranged on one side of the needle holder, the needle head comprises a hollow needle, a hemispherical head is arranged at the end of the hollow needle, the hollow needle can be straight or arc-shaped, and an elliptical side hole is also arranged on one side of the hollow needle; wherein the needle holder is connected to a syringe, and the elliptical side hole is extended into a target surgical area within an incision, so as to complete cutting and scraping of tissue within the target surgical area, and loosen scars and adhesions of subcutaneous tissue of the eyelid.

[0008] In one embodiment, the hollow needle is straight, and the elliptical side hole is located on one side of the hollow needle at the hemispherical head end, which is convenient for hand-held operation near the incision. The side hole is a single hole, and the operation is precise in a small range. It is suitable for loosening scars and adhesions of subcutaneous tissue of the eyelids; cutting and scraping fillers; and injecting drugs or fillers.

[0009] In one embodiment, an arc portion is provided at one end of the hollow needle to fit the eyelid tissue, and the elliptical side hole is located on the outer arc surface of the arc portion, which is convenient for hand-held operation at the remote end of the incision. The arc portion fits the subcutaneous tissue structure of the eyelid, and the operation process is safe and precise. It is suitable for loosening scars and adhesions of the subcutaneous tissue of the eyelid; cutting and scraping fillers; and injecting drugs or fillers.

[0010] In one embodiment, the hollow needle is straight, and two groups of elliptical side holes are provided. The two groups of elliptical side holes are located on one side of the hollow needle at the hemispherical head end, which is suitable for thicker and harder tissues and convenient for hand-held operation near the incision. The double elliptical side hole design has high local operation efficiency and is suitable for loosening scars and adhesions of subcutaneous tissue of the eyelids; cutting and scraping fillers; and injecting drugs or fillers.

[0011] In one embodiment, an arc portion is provided at one end of the hollow needle to fit the eyelid tissue, and the two groups of elliptical side holes are located on the outer arc surface of the arc portion, which is suitable for thicker and harder tissues and convenient for hand-held operation at the far end of the incision. The curved surface fits the subcutaneous tissue structure of the eyelid, and the operation process is safe and precise. The double elliptical side holes have high local operation efficiency and are suitable for loosening scars and adhesions of the subcutaneous tissue of the eyelid; cutting and scraping fillers; and injecting drugs or fillers.

[0012] In one embodiment, the inner surface of the elliptical side hole is provided with a cutting portion inclined toward the center, so that the filler can be quickly cut and scraped.

[0013] In one embodiment, the needle hub portion includes a bearing portion, and the bearing portion is communicated with the needle head portion.

[0014] In one embodiment, a gripping surface is provided on the outer surface of the bearing portion. The provision of the gripping surface can facilitate hand gripping by a person and improve gripping stability.

[0015] In one embodiment, a threaded connector is disposed at one end of the bearing portion, and the threaded connector can be stably connected to the syringe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The needle port of the present invention has a small caliber and a small number of side holes, which greatly improves the accuracy of operation on local delicate parts and improves safety.

[0018] (2) The double elliptical side holes are on the same side of the hollow needle and located on the outer arc surface. When in use, the side holes are facing upward to greatly avoid damage to deep tissues during operation.

[0019] (3) The suction needle of the present invention can fit the natural curved surface structure of the eyelid, meet the needs of surgical operations at various points on the eyelid curved surface, and is safe and accurate to use. Moreover, since both lipoinjection and liposuction functions can be achieved in the same needle, the frequency of needle changes is greatly reduced, the surgical operation is convenient and time-saving, the damage rate of delicate parts during local operations is reduced, and the operation time is shortened.

[0020] (4) The structural design of the needle holder of the present invention makes it difficult for the aspiration needle to fall out of the hand when in use, effectively avoiding the occurrence of splashing liquid or the instrument falling off and damaging the patient's orbital tissue or even the eyeball. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the needle seat part in the present invention.

[0023] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0024] Figure 4 It is a schematic diagram of the main structure of the elliptical side hole in the present invention.

[0025] Figure 5 It is a schematic diagram of the half-section structure of the elliptical side hole in the present invention.

[0026] Figure 6 It is a structural schematic diagram of another embodiment of the present invention.

[0027] Figure 7 It is a schematic structural diagram of an embodiment of the present invention.

[0028] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at point B in the middle.

[0029] Fig. 9 It is a schematic structural diagram of another embodiment of the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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.

[0031] like Figures 1 to 9 As shown, the present invention provides an eyelid fat filling and extraction needle, including a needle base portion 1 and a needle head portion 2, the needle head portion 2 is arranged on one side of the needle base portion 1, the needle head portion 2 includes a hollow needle head 21, and a hemispherical head portion 23 is arranged at the end of the hollow needle head 21. Through the arrangement of the hemispherical head portion 23, the end portion can be prevented from stabbing the patient, thereby improving the safety of use. The hollow needle head 21 is straight, and the elliptical side hole 22 is located on one side of the hollow needle head 21 at the end of the hemispherical head portion 23, which is convenient for hand-held operation near the incision. The single hole is precise in a small range and can loosen scars and adhesions of the subcutaneous tissue of the eyelid; cut and scrape fillers; and inject drugs or fillers.

[0032] When in use, the needle holder 1 is connected to the syringe, the hollow needle 21 is moved to the incision position, and the elliptical side hole 22 is inserted into the incision, and the elliptical side hole 22 is inserted into the target surgical area through the incision, and the tissue within the target surgical area is cut and scraped through the elliptical side hole 22, and the scar and adhesion of the subcutaneous tissue of the eyelid are loosened through the elliptical side hole 22, and the filler is extracted out of the body through the device, or the target surgical area is injected through the elliptical side hole 22. The above two operations can be performed in sequence, and there is no need to change the needle during the operation.

[0033] In one embodiment, Figure 6 As shown, an arc portion 25 is provided at one end of the hollow needle 21 to fit the eyelid tissue, and the elliptical side hole 22 is located on the outer arc surface of the arc portion 25, which is convenient for hand-held operation at the far end of the incision to avoid deep tissue damage. The arc portion 25 fits the subcutaneous tissue structure of the eyelid, which is safe and accurate, and can loosen scars and adhesions of the subcutaneous tissue of the eyelid; cut and scrape fillers; and inject drugs or fillers.

[0034] When in use, the arc portion 25 can be fitted into the subcutaneous tissue structure of the eyelid, and the tissue within the target surgical area can be cut and scraped through the elliptical side hole 22. At the same time, the scars and adhesions of the subcutaneous tissue of the eyelid can be loosened through the elliptical side hole 22, and the filler can be extracted out of the body through the device, or the target surgical area can be injected through the elliptical side hole 22.

[0035] In one embodiment, Figure 7 and Figure 8As shown, the hollow needle 21 is straight, and two groups of elliptical side holes 22 are arranged. The two groups of elliptical side holes 22 are located on one side of the hollow needle 21 on the upper side of the hemispherical head 23, which is suitable for thicker and harder tissues and convenient for hand-held operation near the incision. The double elliptical side holes 22 have high local application efficiency and are suitable for loosening scars and adhesions of subcutaneous tissue of the eyelids; cutting and scraping fillers; and injecting drugs or fillers.

[0036] In one embodiment, Fig. 9 As shown, one end of the hollow needle 21 is provided with an arc portion 25 which fits the eyelid tissue, and two groups of elliptical side holes 22 are located on the outer arc surface of the arc portion 25, which is suitable for thicker and harder tissues and is convenient for hand-held operation at the far end of the incision. The curved surface fits the subcutaneous tissue structure of the eyelid, which is safe and precise. The double elliptical side holes 22 are highly efficient and can loosen scars and adhesions of the subcutaneous tissue of the eyelid; cut and scrape fillers; and inject drugs or fillers.

[0037] Furthermore, the inner surface of the elliptical side hole 22 is provided with a cutting portion 24 inclined toward the center, which can quickly cut and scrape the tissue in the target surgical area.

[0038] In one embodiment, if Figure 1 and Figure 2 As shown, the needle seat portion 1 includes a bearing portion 11, which is connected to the needle head portion 2. A gripping surface 12 is provided on the outer surface of the bearing portion 11. The provision of the gripping surface 12 can facilitate hand gripping by a person and improve gripping stability.

[0039] In order to quickly connect the aspiration needle to the syringe, a threaded connector 13 is provided at one end of the carrying portion 11 .

[0040] During specific use, the operator can select the corresponding suction needle according to the actual needs of the operation. This avoids the need to use different suction needles for lipoinjection and liposuction in one operation. At the same time, since the needle mouth of the present invention has a small caliber, a small number of side holes, and the side holes are concentrated on the same side of the hollow needle head, the arc-shaped hollow needle head is located at the place where the outer arc surface fits the eyelid tissue, and the accuracy of local fine part operation is improved, and the safety is improved.

[0041] The suction needle of the present invention can fit the natural curved surface structure of the eyelid, meet the needs of surgical operations at various points on the curved surface, and is safe and accurate to use. Moreover, since both lipoinjection and liposuction functions can be achieved in the same needle, the surgical operation is convenient and time-saving. The elliptical side hole 22 is on the outer arc surface, avoiding unnecessary damage to deep tissues.

[0042] The structural design of the gripping surface of the needle holder of the present invention makes it difficult for the aspiration needle to slip out of the hand when in use, effectively avoiding the occurrence of damage to the patient's orbital tissue or even the eyeball due to the separation of the needle holder and the syringe, such as the instrument falling off, splashing liquid, and the instrument slipping out of the hand.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An eyelid fat filling injection needle, characterized in that: The needle head comprises at least a needle holder and a needle head, wherein the needle head is arranged on one side of the needle holder, the needle head comprises a hollow needle, a hemispherical head is arranged at the end of the hollow needle, the hollow needle may be straight or arc-shaped, and an elliptical side hole is also arranged on the side close to the end of the hollow needle; wherein the needle holder is connected to the syringe, and the elliptical side hole is extended into the target surgical area within the incision, so as to complete the cutting and scraping of the tissue within the target surgical area, and loosen the scars and adhesions of the subcutaneous tissue of the eyelid.

2. The eyelid fat filling injection needle according to claim 1, characterized in that: The hollow needle is in a straight line shape, and the elliptical side hole is located on one side of the hollow needle of the hemispherical head.

3. The eyelid fat filling injection needle according to claim 1, characterized in that: One end of the hollow needle is provided with an arc portion that fits the anatomical shape of the eyelid, and the elliptical side hole is located on the outer arc surface of the arc portion.

4. The eyelid fat filling injection needle according to claim 1, characterized in that: The hollow needle is in a straight line shape, and the elliptical side holes are in two groups, and the two groups of elliptical side holes are located on one side of the hollow needle on the upper side of the hemispherical head.

5. The eyelid fat filling injection needle according to claim 4, characterized in that: One end of the hollow needle is provided with an arc portion which fits the eyelid tissue, and the two groups of elliptical side holes are located on the outer arc surface of the arc portion.

6. The eyelid fat filling injection needle according to any one of claims 1 to 5, characterized in that: The inner surface of the elliptical side hole is provided with a cutting portion inclined toward the center.

7. The eyelid fat filling injection needle according to claim 1, characterized in that: The needle seat portion includes a bearing portion, and the bearing portion is communicated with the needle head portion.

8. The eyelid fat filling and injection needle according to claim 7, characterized in that: The outer surface of the bearing portion is provided with a gripping surface.

9. The eyelid fat filling injection needle according to claim 8, characterized in that: A threaded joint is arranged at the tail end of the bearing part.

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