Vasectomy Stapler
By designing an absorbable vas deferens stapler, using locking mechanism and barb design, the problem of precise anastomosis of the existing vas deferens is solved, and simple and efficient vas deferens anastomosis is achieved, reducing the complexity and economic burden of the surgery.
Patent Information
- Application Number
- CN202010790223.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-08-07
- Publication Date
- 2024-12-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing vas deferens anastomosis is difficult to achieve accurate anastomosis, resulting in low reconciliation rate, complex and expensive surgery, high technical requirements for doctors, and long-term use of microscopes, increasing the risk and economic burden of surgery.
An absorbable vas deferens stapler is designed with a locking mechanism and a barb design to achieve accurate anastomosis through the connecting seat and the connecting plug, and is equipped with absorbable materials and fixtures to simplify surgical operations and avoid microscope use.
It achieves simplicity of operation, accurate anastomosis, shorten the surgical time, avoids reoperation complications and suture damage, and reduces the risk and cost of surgery.
Smart Images
Figure CN111920472B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of medical equipment, in particular to a vas deferens stapler which reduces the difficulty of vas deferens anastomosis. Background Art
[0002] Vasectomy is a common surgical method for recanalization after vas deferens obstruction. Vasectomy recanalization is an effective treatment for obstructive azoospermia or severe epididymal congestion. At present, there are common vas deferens anastomosis, but this surgical method has a low recanalization rate due to the inability to accurately anastomose, and is rarely used in clinical practice. Another type of vas deferens anastomosis is microscopic vas deferens end anastomosis, which has the advantages of accurate anastomosis and high recanalization rate, and is a common surgical method in clinical practice. However, microscopic vas deferens end anastomosis requires high microsurgical skills of doctors. Doctors need to undergo long-term specialized training to perform the operation. In addition, the price of surgical microscopes is high, the cost of surgery is expensive, and the burden on patients is increased. In addition, this surgical method takes a long time to operate, doctors are prone to fatigue, and the risk of surgery is increased. Doctors watching the microscope for a long time will cause great damage to their eyes. At present, fully degradable medical devices are an emerging market. Disposable absorbable medical devices can be degraded after a period of time after being implanted in the human body, avoiding the damage and economic burden caused by reoperation. In summary, it is very necessary to design an absorbable vas deferens anastomosis device. Summary of the invention
[0003] In order to solve the above technical problems, the present invention provides a vas deferens stapler.
[0004] The present invention is achieved according to the following technical solutions:
[0005] A vas deferens stapler comprises a first body and a second body connected by a locking mechanism; the first body and the second body are both hollow tubular structures; the locking mechanism comprises a connecting seat located at one end of the first body and a connecting plug located at one end of the second body; the inner walls of the first body and the second body are both formed with evenly arranged barbs; the vas deferens stapler also comprises a clamp used therewith, the clamp comprising a fixing clamp and a clamp; the fixing clamp comprises two arc-shaped clamps, one end of the two clamps is hinged to each other, and the other end is connected to a clamp arm; the clamp comprises a hand-held portion and a clamping portion connected to each other, the free end of the clamping portion is a hollow structure, and the clamp arm is inserted into the free end of the clamping portion.
[0006] Furthermore, the inner diameters of the first body and the second body are both 0.5 mm-10 mm, and the wall thicknesses are both 0.05-10 mm.
[0007] Furthermore, one end of the first main body is enlarged to form a connecting seat, which is in a cylindrical structure and has an enlarged inner diameter at its free end. The inner wall edge of the enlarged diameter portion of the connecting seat protrudes toward the center of the connecting seat to form an annular rib, and a first groove is formed between the rib and the neck portion of the connecting seat.
[0008] Furthermore, one end of the second main body is enlarged to form a connecting plug, and the outer wall of the remaining end of the connecting plug forms an anti-dropping clamp ring, the outer diameter of the anti-dropping clamp ring gradually retracts toward the end of the connecting plug and eventually becomes consistent with the outer diameter of the connecting plug; the remaining end of the connecting plug forms a surrounding second groove inward, and the opening direction of the second groove is consistent with the direction in which the connecting plug is inserted into the connecting seat.
[0009] Furthermore, the inner side wall of the connecting socket is tightly fitted with the outer side wall of the connecting plug.
[0010] Furthermore, the barbs in the first body face one side of the connection socket; and the barbs in the second body face one side of the connection plug.
[0011] Furthermore, the first body and the second body are both made of one or more of the biodegradable polymer materials polylactic acid and polylactic acid-glycolic acid copolymer.
[0012] Furthermore, the inner surface of the clamping plate of the fixing clamp is sandblasted or frosted.
[0013] The advantages and beneficial effects of the present invention are:
[0014] The present invention is easy to operate, has accurate and reliable anastomosis, greatly shortens the operation time, and can be completed without a surgical microscope; the stapler of the present invention adopts a barb design inside, which can firmly fix the vas deferens and avoid the vas deferens prolapse, slippage, etc.; the stapler of the present invention is an absorbable stapler, which can avoid complications caused by reoperation, and after the stapler is completely absorbed, it will not cause adverse effects on local tissues and semen treatment; the stapler of the present invention does not require sutures or suture removal when in use, thus avoiding damage caused by sutures and knot reactions. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the present invention;
[0016] Figure 2 It is a structural schematic diagram of the first main body in the present invention;
[0017] Figure 3 It is a structural schematic diagram of the second main body in the present invention;
[0018] Figure 4 is a schematic diagram of the present invention used in actual treatment process;
[0019] Figure 5Schematic diagram of the present invention for treating a situation where the two ends of the vas deferens have different diameters;
[0020] Figure 6 It is a schematic diagram of the structure of the clamp in the present invention;
[0021] Figure 7 It is a schematic diagram of the structure of the fixing clip in the present invention.
[0022] Among them, 1. the first main body; 2. the second main body; 3. the barb; 4. the connecting seat; 5. the first groove; 6. the retaining edge; 7. the connecting plug; 8. the anti-dropping clamp, 9. the second groove; 10. the vas deferens; 11. the vas deferens bracket; 12. the fixing clamp; 1201. the splint; 1202. the clamp arm; 13. the clamp. DETAILED DESCRIPTION
[0023] The present invention is described in detail below with reference to the accompanying drawings and embodiments.
[0024] like Figures 1 to 7 As shown, a vas deferens anastomosis device comprises a first main body 1 and a second main body 2 connected by a locking mechanism; the first main body 1 and the second main body 2 are both hollow tubular structures; the locking mechanism comprises a connecting seat 4 located at one end of the first main body 1 and a connecting plug 7 located at one end of the second main body 2; the inner walls of the first main body 1 and the second main body 2 are both formed with evenly arranged barbs 3; the vas deferens anastomosis device also includes a clamp used therewith, the clamp comprises a fixing clamp 12 and a clamp 13; the fixing clamp 12 comprises two arc-shaped clamps 1201, one end of the two clamps 1201 is hinged to each other, and the other end is connected to a clamp arm 1202; the clamp 13 comprises a hand-held portion and a clamping portion connected to each other, the free end of the clamping portion is a hollow structure, and the clamp arm 1202 is inserted into the free end of the clamping portion.
[0025] The inner diameters of the first body 1 and the second body 2 are 0.5 mm to 10 mm, and the wall thickness is 0.05 to 10 mm. The first body 1 and the second body 2 of the present invention can have multiple models according to different inner diameters. The outer diameters of the first body 1 and the second body 2 of different models are the same. In actual operation, the model with the closest size parameters is selected according to the patient's needs.
[0026] One end of the first main body 1 is enlarged to form a connecting seat 4. The connecting seat 4 is cylindrical in structure and the inner diameter of the remaining end is enlarged. The edge of the inner wall of the enlarged diameter portion of the connecting seat protrudes toward the center of the connecting seat to form an annular rib 6. A first groove 5 is formed between the rib 6 and the neck portion of the connecting seat; the rib 6 is perpendicular to the side wall of the connecting seat 4.
[0027] One end of the second body 2 is enlarged to form a connecting plug 7, and the outer wall of the remaining end of the connecting plug 7 forms an anti-dropping clamp 8, and the outer diameter of the anti-dropping clamp 8 gradually retracts toward the end of the connecting plug 7 and finally becomes consistent with the outer diameter of the connecting plug 7; the remaining end of the connecting plug 7 forms a surrounding second groove 9 inwardly, and the opening direction of the second groove 9 is consistent with the direction in which the connecting plug 7 is inserted into the connecting seat 4.
[0028] The inner wall of the connection base 4 is tightly fitted with the outer wall of the connection plug 7 .
[0029] The barbs 3 in the first body 1 face one side of the connection base 4 , and the barbs 3 in the second body 2 face one side of the connection plug 7 .
[0030] The first body 1 and the second body 2 are both made of one or more of biodegradable polymer materials, polylactic acid and polylactic-co-glycolic acid (PLGA).
[0031] The inner surface of the clamping plate 1201 of the fixing clamp 12 is sandblasted or frosted to achieve the purpose of anti-slip, so as to avoid slipping when the fixing clamp 12 clamps the first body 1 and the second body 2.
[0032] The principle and method of use of the present invention are:
[0033] The first body 1 and the second body 2 are made of absorbable polylactic acid or polylactic-co-glycolic acid (PLGA). The two can be firmly connected through a connection seat 4 and a connection plug 7. Both bodies have barbs 3 facing the connection part to firmly fix the vas deferens 10 at both ends to prevent slipping.
[0034] Figure 4 It is a real structural diagram of the present invention applied to vas deferens anastomosis. The two ends of the vas deferens 10 are respectively implanted into the two main bodies of the stapler, and the vas deferens 10 at the joint end is trimmed neatly, and then the connecting plug 7 can be inserted into the connecting seat 4. In the specific operation, a stitch can be used to sew the end of the vas deferens 10 to guide it into the two main bodies of the stapler. After implantation, the two ends of the vas deferens 10 are trimmed neatly, and then the connecting plug 7 is inserted into the connecting seat 4.
[0035] When the connection plug 7 is inserted into the connection seat 4, the outer diameter of the front end of the connection plug 7 is equal to the inner diameter of the connection seat 4 at the beginning, so it will not affect the insertion; then the outer wall of the connection plug 7 is squeezed by the inner wall of the connection seat 4, which will cause deformation, thereby compressing the second groove 9, so that the connection plug 7 can be fully inserted into the connection seat 4. Finally, the anti-dropping clamp ring 8 is stuck in the first groove 5 and blocked by the retaining edge 6, so that the second body 2 cannot be pulled out of the first body 1, thereby ensuring the reliability of the connection.
[0036] exist Figure 5A case where the two ends of the vas deferens have different diameters is described in the figure. After the vasectomy, the end near the testicle is usually thicker and expanded, while the end near the abdominal cavity is thinner. Therefore, in this embodiment, the first body 1 and the second body 2 with different inner diameters are selected to cooperate with each other. Although the inner diameters of the first body 1 and the second body 2 are different, the outer diameters are the same and the connecting plug 7 can be inserted into the connecting seat 4 to cooperate with each other, so that the connection is firm.
[0037] In summary, the connection base 4 and the connection plug 7 of the present invention have the same radius from the main body axis, and when the inner diameters of the first main body 1 and the second main body 2 are different, the connection base 4 and the connection plug 7 still have the same radius from the main body axis. Therefore, the present invention is applicable to the case where the two ends of the vas deferens have the same diameter, and is also applicable to the case where the two ends of the vas deferens have different diameters due to obstruction.
[0038] When using the absorbable vas deferens anastomosis device of the present invention, a vas deferens stent 11 can be placed, and the vas deferens stent 11 can use an absorbable stent or a non-absorbable stent. After the non-absorbable stent is placed, it passes through the vas deferens wall and then passes outside the skin, and is pulled out after a period of time.
[0039] Since the outer diameter of the stapler is small and it is inconvenient to hold it directly by hand, a matching clamp is also designed for it, including a fixed clamp 12 and a clamp 13. Among them, the appearance and operation method of the clamp 13 are similar to those of ordinary pliers. The only difference is that one end of its clamping part is a hollow structure, and when the clamping part is clamped, the outer walls of the two clamping parts are completely fitted. The clamps 1201 of the two fixed clamps 12 clamp the first body 1 and the second body 2 respectively. After clamping, the two clamp arms 1202 of each fixed clamp 12 are closed and fit each other. The two fixed clamps 12 with the clamp arms 1202 closed are respectively inserted into the free ends of the clamp 13, so that the fixed clamp 12 and the clamp 13 are integrated. At this time, holding the clamp 13 and clamping it will make the first body 1 and the second body 2 clamped by the fixed clamp 12 approach each other, and finally make the connecting plug 7 inserted into the connecting seat 4, thereby realizing the connection of the two ends of the stapler. After completion, the fixing clip 12 is taken out and opened to release the first body 1 and the second body 2 from the clamping plate 1201 .
[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.
[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0043] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.
Claims
1. A vas deferens stapler, characterized in that: The vas deferens stapler comprises a first body (1) and a second body (2) connected by a locking mechanism; the first body (1) and the second body (2) are both hollow tubular structures; the locking mechanism comprises a connecting seat (4) located at one end of the first body (1) and a connecting plug (7) located at one end of the second body (2); the inner walls of the first body (1) and the second body (2) are both formed with evenly arranged barbs (3); the vas deferens stapler also comprises a clamp used in conjunction therewith, the clamp comprising a fixing clamp (12) and a clamp (13); the fixing clamp (12) comprises two arc-shaped clamps (1201), one end of the two clamps (1201) is hinged to each other, and the other end is connected to a clamp arm (1202); the clamp (13) comprises a hand-held portion and a clamping portion connected to each other, the free end of the clamping portion is a hollow structure, and the clamp arm (1202) is inserted into the free end of the clamping portion; One end of the first body (1) is enlarged to form a connecting seat (4); the connecting seat (4) is cylindrical in structure and the inner diameter of the free end thereof is enlarged; the inner wall edge of the enlarged diameter portion of the connecting seat protrudes toward the center of the connecting seat to form an annular rib (6); a first groove (5) is formed between the rib (6) and the neck portion of the connecting seat; One end of the second body (2) is enlarged to form a connecting plug (7), and the outer wall of the remaining end of the connecting plug (7) forms an anti-dropping clamp (8), the outer diameter of the anti-dropping clamp (8) gradually retracts toward the end of the connecting plug (7) and eventually becomes consistent with the outer diameter of the connecting plug (7); the remaining end of the connecting plug (7) forms a surrounding second groove (9) inwardly, and the opening direction of the second groove (9) is consistent with the direction in which the connecting plug (7) is inserted into the connecting seat (4); The barbs (3) in the first body (1) face one side of the connection seat (4); and the barbs (3) in the second body (2) face one side of the connection plug (7).
2. A vas deferens stapler as claimed in claim 1, characterized in that: The inner diameters of the first body (1) and the second body (2) are both 0.5 mm-10 mm, and the wall thicknesses are both 0.05-10 mm.
3. A vas deferens stapler as claimed in claim 1, characterized in that: The inner side wall of the connection seat (4) is tightly fitted with the outer side wall of the connection plug (7).
4. A vas deferens stapler as claimed in claim 1, characterized in that: The first body (1) and the second body (2) are both made of one or more of the biodegradable polymer materials polylactic acid and polylactic acid-glycolic acid copolymer.
5. A vas deferens stapler as claimed in claim 1, characterized in that: The inner surface of the clamping plate (1201) of the fixing clamp (12) is sandblasted or frosted.