A circumcision device

Abstract

A circumcision device relates to a surgical instrument, specifically to a circumcision device, comprising an inner ring, an outer ring and a cutting line with contraction ability, wherein the outer ring is provided with an axial through hole, the inner ring is provided on the inner side of the outer ring, the outer surface of the inner ring is provided with a groove, the cutting line is provided between the outer ring and the inner ring, the cutting line is knotted to form a movable knot, the movable knot of the cutting line is provided in the through hole, the two ends of the cutting line are divided into an active end and a passive end, a single-strand cutting line is provided between the active end and the passive end, when the active end is pulled, the cutting line can be bound in the groove, by adopting a single-strand cutting line with contraction ability, the effective area of ​​the cutting line on the foreskin is further controlled, the blood vessel can be completely cut off from supplying blood to the distal foreskin, so that the distal foreskin is necrotic, the movable knot is convenient for knotting, and the loosening of the cutting line is avoided, the invention is easy to carry, and the situation of falling off due to movement is avoided.

Description

Technical Field

[0001] The invention relates to a surgical instrument, in particular to a circumcision device used in urology. Background Art

[0002] Circumcision refers to the removal of excess foreskin on the penis to expose the glans penis. It is an effective treatment for phimosis, prepuce excess and prevent their complications. The operation takes about 20 to 30 minutes and generally does not require hospitalization. The risk of the operation is relatively low. The equipment commonly used in circumcision surgery is the circumcision device.

[0003] At present, there are two types of circumcision devices on the market. One type is the circumcision device disclosed in patent CN201020212582.7. This type of circumcision device is also divided into two types. One type is that the outer ring adopts a sharp blade. When the outer ring is buckled into a perfect circle, the foreskin is cut off. This type of circumcision device causes a wound, and when suturing, it cannot ensure that the fine blood vessels on the foreskin are completely sutured, and it is easy to cause bleeding and suppuration during the recovery period. On the basis of the above, some circumcision devices have been improved, and the blade of the outer ring is blunted. The principle is to use a blade to squeeze the skin instead of cutting it, causing the distal end of the foreskin to necrotize and fall off due to lack of blood supply. However, this improved circumcision device also has its disadvantages. As the circumcision device squeezes the foreskin, the foreskin coming out of the circumcision device gradually becomes thinner, making it impossible for the blade to completely cut off the blood supply to the blood vessels, causing adhesion of the foreskin, greatly prolonging the time the patient has to wear the circumcision device, and even causing the foreskin to remain attached. In addition, the circumcision device has a certain size, and during treatment, it is easy to fall off due to movement and other reasons, resulting in failure of the operation.

[0004] Another type of circumcision device is a device such as patent CN200710147073.3, which uses an elastic rope instead of a cutter to facilitate carrying. However, this type of circumcision device has too many turns of the elastic rope, resulting in a wide cutting surface of the ligature, which can easily cause the foreskin tissue to be embedded in the seam, adhesion when the foreskin is necrotic, delayed ring removal, and uneven cross-section; and manual tying is inconvenient to operate, and the elastic rope is likely to loosen when tying a knot. Summary of the invention

[0005] In order to overcome the drawbacks of existing circumcision devices, the present invention discloses a circumcision device which has the characteristics of being easy to operate, easy to carry and having a regular cutting surface.

[0006] The technical solution adopted by the invention is: a circumcision device, comprising an inner ring, an outer ring and a cutting wire with contraction ability, the outer ring is provided with a through hole, preferably, the through hole is arranged in the axial direction of the outer ring, the inner ring is arranged on the inner side of the outer ring, the outer surface of the inner ring is provided with a groove, the cutting wire is arranged between the outer ring and the inner ring, the cutting wire is knotted to form a movable knot, the movable knot of the cutting wire is arranged in the through hole, the two ends of the cutting wire are divided into an active end and a passive end, a single-strand cutting wire is between the active end and the passive end, and when the active end is pulled, the cutting wire can be restrained in the groove.

[0007] In the present technical solution, by adopting the form of a movable knot, manual knotting is avoided, and the situation of the knot loosening and causing the rope loop to expand will not occur. Moreover, during the operation, the size of the rope loop can be determined by pulling the active end, and the rope loop can be fixed by pulling the passive end, which is easy to operate. The groove on the outer surface of the inner ring can provide a limit for the cutting line to prevent the cutting line from being offset during the bundling process or the wearing process.

[0008] The cutting line with contraction ability can contract toward the penis as the foreskin becomes necrotic, and continuously apply tightening force to the foreskin, thus avoiding the situation in which products such as CN201020212582.7 cannot continuously apply tightening force and cause adhesion.

[0009] In addition, the cutting line is in the form of a single strand, which also avoids the foreskin adhesion caused by multiple strands of cutting wires and the irregular "cutting" surface, resulting in a jagged incision, which is more beautiful.

[0010] As a further improvement of the present invention, the movable knot is a live knot.

[0011] As a further improvement of the present invention, the movable rope knot is a human knot.

[0012] In the above two schemes, examples are given of the types of movable knots. Both movable knots are divided into an active end and a passive end. When the active end is pulled, the size of the rope loop is determined, and when the passive end is pulled, the size of the rope loop is tightened to prevent the rope loop from expanding due to loosening.

[0013] As a further improvement of the present invention, the cross section of the groove is V-shaped.

[0014] In the present technical solution, the groove is changed from the common U-shape to a V-shape. The closed tip of the V-shaped groove can fix the cutting line, which avoids the situation that the cutting line can roll at the bottom of the U-shape during use, causing uncertainty in the incision position, prolonging the wearing time, and even causing the distal foreskin to not be completely necrotized. The present technical solution is combined with a single-strand cutting line, which can completely fix the cutting line in the groove, thereby making the wound surface smooth and reducing the wearing time. In other words, the use of a single-strand cutting line in conjunction with a U-shaped groove can complete foreskin necrosis, but it is easy to cause adhesion and an uneven wound surface. Further, by continuously fixing the cutting line through the V-shaped groove, a smooth cut can be completed. The function of the V-shaped groove is to fix the cutting line, and the further effect of fixing the cutting line is a smooth wound surface.

[0015] As a further improvement of the present invention, a hollow tube is provided at the through hole, the other end of the hollow tube is detachably connected with an end cap, and the active end and the passive end of the cutting line are fixed on the end cap.

[0016] In this technical solution, a hollow tube is provided at the through hole, and an end cap is provided at the other end of the hollow tube. When the end cap is pulled, the active end and the passive end of the cutting line can be pulled out. At this time, the active end and the passive end are adjusted to complete the determination and tightening of the rope ring, and the connection between the active end and the passive end and the end cap is cut off. The cutting line contracts under the action of elastic force, and the passive end is locked to the active end. There is no need to tie a knot manually, which avoids the situation of loosening. By providing a hollow tube, the doctor's hand will not block the line of sight during the operation, and various situations during the operation can be clearly observed.

[0017] As a further improvement of the present invention, a retaining member is provided in an annular array on the inner wall of the outer ring, and the retaining member includes symmetrically arranged retaining members, and a first protrusion is provided on the top of the side surface of the retaining member, and the first protrusions of two retaining members are arranged opposite to each other, and the distance between the two first protrusions is smaller than the diameter of the cutting line, and the distance from the highest point of the retaining member to the center of the outer ring is larger than the diameter of the inner ring, and the cutting line (3) is located between the first protrusion and the outer ring.

[0018] In the present technical solution, a retaining piece is provided, and the function of the retaining piece is to fix the cutting line between the inner ring and the outer ring, so as to facilitate the cutting line to be put on the penis during surgery.

[0019] As a further improvement of the present invention, a recessed portion is provided on the inner side of the outer ring, and second raised portions are provided in groups of two on the inner wall of the recessed portion. The second raised portions in each group are spaced apart, and the spacing distance is less than the diameter of the cutting line. The cutting line (3) is located between the second raised portions and the outer ring.

[0020] This technical solution is another form of fixing the cutting wire between the inner ring and the outer ring.

[0021] As a further improvement of the present invention, the cross section of the inner ring in the axial direction shows a trend of first decreasing and then increasing, and the inner ring is provided with a handle for holding, and the handle is detachably connected to the end face of the inner ring.

[0022] In the present technical solution, in order to facilitate the placement and fixation of the inner ring, a handle is provided on the inner ring, and the handle and the inner ring are connected in a detachable manner. This detachable manner is relatively common. Its purpose is to separate the inner ring from the handle so that the patient does not need to wear the handle at the same time when wearing the inner ring, which is light and convenient.

[0023] As a further improvement of the present invention, a accommodating groove for accommodating the glans frenulum is provided on the side wall of the inner ring at the largest cross-section.

[0024] Due to the characteristics of the inner ring structure, the inner ring has a certain volume. When fixed, the inner ring will rub against the glans frenulum and cause bleeding, etc. Therefore, a accommodating groove for accommodating the glans frenulum is provided on the side wall at the largest transmission cross-section of the inner ring to avoid the occurrence of the aforementioned situation.

[0025] The beneficial effects of the present invention are as follows: by adopting a single-strand cutting line with contraction ability, the effective area of ​​the cutting line on the foreskin is further controlled, so that the blood supply to the distal foreskin by the blood vessels can be completely cut off, causing necrosis of the distal foreskin; the movable knot is convenient for knotting, and the loosening of the cutting line is avoided; the present invention is easy to carry and avoids falling off due to movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0027] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0028] Figure 2 is a longitudinal cross-sectional view of the outer ring, the hollow tube and the end cap;

[0029] Figure 3 It is a schematic diagram of the coordination between the positioning piece and the cutting line;

[0030] Figure 4 is a schematic structural diagram of a second embodiment of an outer ring;

[0031] Figure 5 It is a schematic diagram of the shape of the inner ring;

[0032] Figure 6 It is a cross-sectional view of the inner ring and the handle. DETAILED DESCRIPTION

[0033] Embodiment 1:

[0034] like Figure 1 , 2 A circumcision device shown in , 3, 5, and 6 comprises an inner ring 1, an outer ring 2, and a cutting line 3 with contraction capability, wherein the inner ring 1 is sleeved inside the outer ring 2, and the aforementioned cutting line 3 is arranged between the inner ring 1 and the outer ring 2, and the cutting line 3 is knotted by means of a movable knot to form a rope ring for binding, and the movable knot (not shown in the figure) has the following characteristics: first, the rope ring formed by the cutting line 3 through the movable knot is a single-strand rope ring; second, the cutting line 3 forming the movable knot has an active end and a passive end, wherein when the active end is pulled, the rope ring can be tightened, and when the passive end is pulled, the active end can be tightened to fix the size of the rope ring and prevent the size of the rope ring formed by the active end from changing. The aforementioned movable knot includes but is not limited to a live knot and a weighing knot. Since the cutting line 3 has contraction capability, the active knot will not become loose when the active end is tightened.

[0035] The outer surface of the inner ring 1 is provided with a groove, and the function of the groove is to accommodate and limit the cutting line 3 in the contracted state. When the active end is pulled, the rope loop formed by the cutting line 3 will be tied to the inner ring 1 and limited and fixed by the groove. The groove can help the doctor to quickly locate during the operation, and can also prevent the cutting line 3 from deviating during the treatment.

[0036] In the technical solution, the groove is V-shaped. Compared with the conventional U-shaped groove, the closed tip of the V-shaped groove is close to and forms a vertex angle, which can better fix the cutting line 3 and prevent the cutting line 3 from rolling back and forth on the bottom surface of the conventional U-shaped groove, which cannot continuously cut off the blood supply and shortens the wearing time. In addition, the V-shaped groove has a guiding effect, so that the cutting line 3 slides toward the closed tip under the action of elastic force.

[0037] For further improvement, a through hole 21 is provided in the radial direction of the outer ring 2, the through hole 21 passes through the side wall of the outer ring 2, the aforementioned active knot is located in the through hole 21, and a hollow tube 4 is also provided at the through hole 21, the axial direction of the hollow tube 4 is the same as the radial direction of the appearance. An end cap 41 is provided at the other end of the hollow tube 4, and the end cap 41 is detachably connected to the hollow tube 4. Preferably, the hollow tube 4 and the end cap 41 are screwed or clamped.

[0038] The active end and the passive end pass through the hollow tube 4 and are connected to the end cap 41 .

[0039] When setting the cutting line 3, the rope loop formed by the cutting line 3 is attached to the inner wall of the outer ring 2 and the movable knot is located in the through hole 21. In order to facilitate the cutting line 3 to be attached to the inner wall of the outer ring 2, a clamping member 22 is provided on the inner wall of the outer ring 2. The clamping member 22 is arranged on the inner wall of the outer ring 2 in a circular array. The clamping member 22 can be arranged continuously or indirectly. In this embodiment, the clamping member 22 is indirectly arranged. The clamping member 22 and the outer ring 2 can be glued or integrally formed. The clamping member 22 includes two symmetrically arranged clamping members 221, and the top of the side of the clamping member 221 is provided with a first protrusion 222. The first protrusions 222 of the two clamping members 221 are arranged oppositely, and the distance between the two clamping members 221 is greater than the diameter of the cutting line 3, and the distance between the two first protrusions 222 is less than the diameter of the cutting line 3. The clamping member 22 is made of plastic material. The lower end of the second protrusion 231 and the surface of the clamping member 221 are chamfered to facilitate the tying rope clamped in the clamping member 22 to slide out.

[0040] In order to prevent the doctor from touching the glans penis when placing the inner ring 1 and from blocking the doctor's vision when placing the inner ring 1 with his hands, the inner ring 1 is arranged as follows Figure 6 structure.

[0041] like Figure 6 A handle 131 is provided on the end surface of the inner ring 1, and the handle 131 is detachably connected to the inner ring 1. This detachable connection can be achieved by using existing technology.

[0042] Specifically, the cross section of the inner ring 1 in the axial direction shows a trend of first decreasing and then increasing. Preferably, a accommodating groove for accommodating the glans frenulum is provided on the side wall of the inner ring 1 at the largest cross section.

[0043] Embodiment 2:

[0044] like Figure 4 As shown, this embodiment also discloses another structure for setting the cutting line 3 on the inner wall of the outer ring 2. Figure 4 The knot formed by the cutting line 3 is not drawn in the figure. A recessed portion 23 is provided on the inner side of the outer ring 2. The recessed portion 23 is recessed toward the inside of the outer ring 2. The recessed portion 23 is connected to the through hole 21. A group of second protrusions 231 is provided on the inner wall of the recessed portion 23. The second protrusions 231 in each group are arranged opposite to each other and are spaced apart. The spacing distance is less than the diameter of the cutting line 3. Six groups of second protrusions 231 are provided in this embodiment. The cutting line 3 is restricted in the recessed portion 23 by the second protrusions 231, and when an external force is applied, the cutting line 3 can move toward the inner ring 1 and finally be tied in the groove of the inner ring 1. The second protrusions 231 and the recessed portion 23 are chamfered.

[0045] Method of use of the present invention:

[0046] Put the outer ring 2 on the patient's penis and move it to the proximal end of the penis (i.e. the end close to the human body), then turn the foreskin and use Figure 6 The inner ring 1 and the handle 131 shown are held, the inner ring 1 is put on the penis and moved toward the proximal end of the penis, so that the inner ring 1 is close to the glans groove, and the foreskin is turned to reset. At this time, from the outside to the inside, the foreskin, the inner ring 1 and the penis are respectively; after the inner ring 1 is fixed, the outer ring 2 is moved toward the distal end of the penis until the inner ring 1 and the outer ring 2 are in the same vertical plane or approximately in the same vertical plane. At this time, the inner ring 1 and the outer ring 2 are coaxial or approximately coaxial. At this time, the end cap 41 is pulled, the active end in the end cap 41 is pulled, the size of the rope ring and the force of the rope ring on the foreskin are adjusted, and after proper adjustment, the passive end is pulled to fix the active end to prevent the rope ring from loosening. At this time, from the outside to the inside, the outer ring 2, the cutting line 3, the foreskin, the inner ring 1 and the penis are respectively. Then, the connection between the active end and the end cap 41, the passive end and the end cap 41 is cut off, the outer ring 2 is removed and the handle 131 is disassembled. At this time, the patient only needs to wear the inner ring 1 and the cutting line 3 wound around the inner ring 1.

[0047] In addition, the "cutting" mentioned in this article should not be understood in a narrow sense as cutting with a blade, but should include cutting caused by various methods.

[0048] The above description is only a preferred embodiment of the present invention and does not constitute a limitation on the protection scope of the present invention.

Claims

1. A circumcision device, characterized in that: The invention comprises an inner ring (1), an outer ring (2) and a cutting line (3) with contraction capability, wherein the outer ring (2) is provided with a through hole (21), the inner ring (1) is arranged on the inner side of the outer ring (2), the outer surface of the inner ring (1) is provided with a groove, the cutting line (3) is arranged between the outer ring (2) and the inner ring (1), the cutting line (3) is knotted to form a movable knot, the movable knot of the cutting line (3) is arranged in the through hole (21), the two ends of the cutting line (3) are divided into an active end and a passive end, the cutting line (3) is a single strand between the active end and the passive end, and when the active end is pulled, the cutting line (3) can be bound in the groove; A retaining member (22) is provided in an annular array on the inner wall of the outer ring (2), the retaining member (22) comprising symmetrically arranged retaining members (221), a first protrusion (222) being provided at the top end of the side surface of the retaining member (221), the first protrusions (222) of the two retaining members (221) being arranged facing each other, the distance between the two first protrusions (222) being smaller than the diameter of the cutting line (3), the distance from the highest point of the retaining member (221) to the center of the outer ring (2) being larger than the diameter of the inner ring (1), and the cutting line (3) being located between the first protrusion (222) and the outer ring (2).

2. The circumcision device according to claim 1, characterized in that: The movable rope knot is a live rope knot.

3. The circumcision device according to claim 1, characterized in that: The movable rope knot is a human knot.

4. The circumcision device according to claim 1, characterized in that: The cross section of the groove is V-shaped.

5. The circumcision device according to claim 4, characterized in that: A hollow tube (4) is provided at the through hole (21), the other end of the hollow tube (4) is detachably connected to an end cap (41), and the active end and the passive end of the cutting wire (3) are fixed on the end cap (41).

6. The circumcision device according to claim 1, characterized in that: A recessed portion (23) is provided on the inner side of the outer ring (2), and second raised portions (231) are provided in groups of two on the inner wall of the recessed portion (23), and each group of second raised portions (231) is spaced apart, with the spacing distance being less than the diameter of the cutting line (3), and the cutting line (3) is located between the second raised portions (231) and the outer ring (2).

7. The circumcision device according to claim 1, characterized in that: The cross section of the inner ring (1) in the axial direction shows a trend of first decreasing and then increasing. The inner ring (1) is provided with a handle (131) for holding. The handle (131) is detachably connected to the end face of the inner ring (1).

8. The circumcision device according to claim 7, characterized in that: The inner ring (1) is provided with a receiving groove for receiving the glans frenulum on the side wall at the largest cross section.

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