Circumcision stapler

Abstract

A circumcision stapler comprises: an inner ring; an outer ring comprising at least two arc segments, at least one of the arc segments having a piercing portion at its radial inner end, the piercing portion protruding radially inwardly along the arc segment; the outer ring is adapted to: achieve a disconnected state by disconnecting at least two of the arc segments, in which the inner ring can be inserted into the outer ring; and, from the disconnected state, define a circular ring state by connecting all the arc segments in sequence, so that the outer ring is encircled by the inner ring and the piercing portion is inserted into the inner ring. During the operation, a wound is formed so that the cells of the inner and outer plates of the foreskin are in direct contact, thereby forming a new wound surface. This method can accelerate the formation of the wound surface and shorten the healing period.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a circumcision stapler. Background Art

[0002] Disposable circumcision anastomosis is currently the international leading technology for circumcision. The circumcision anastomosis device is a necessary medical device in circumcision anastomosis. The existing circumcision anastomosis device in clinical practice includes: an inner ring and an outer ring. The outer ring includes two arc segments, and the two arc segments are connected by rotation at one end, and the other end of each arc segment can be opened and closed, and the shape of the ring is limited when closed.

[0003] The foreskin has an inner plate that is attached to the penis and an outer plate that is exposed to the outside. The working principle of the circumcision stapler is:

[0004] First, the inner ring is placed inside the inner plate of the foreskin. The inner ring embraces the penis and holds up the foreskin. The foreskin part on the side of the inner ring close to the glans penis is redundant foreskin.

[0005] Next, the other ends of the two arc segments in the outer ring are disconnected to achieve a disconnected state, limiting a larger accommodating space. This can achieve the arrangement of the two arc segments of the outer ring around the inner ring, with the inner ring and the two arc segments separated by a foreskin, and the inner ring is accommodated in the larger accommodating space.

[0006] Next, the other ends of the two arc segments in the outer ring are gradually closed to a defined circular ring shape. During this process, the accommodation space defined by the two segments gradually shrinks to form a closed outer ring. The outer ring wraps around the outer plate of the foreskin and buckles the inner ring, and the outer ring and the inner ring clamp the foreskin.

[0007] Finally, a portion of the excess foreskin is cut off. During this process, the inner and outer rings clamp the foreskin, blocking the blood circulation in the remaining excess foreskin, avoiding heavy bleeding, and promoting the residual excess foreskin to atrophy due to ischemia and fall off naturally.

[0008] After the operation, the blood flow is blocked by the clamping pressure of the inner and outer rings on the foreskin to form a wound surface. However, it is difficult to completely block the blood flow in clinical practice, so the wound surface takes a long time to form, and there is a problem of delayed healing. Summary of the invention

[0009] The problem solved by the present invention is that the existing circumcision stapler has the risk of delayed healing after surgery.

[0010] In order to solve the above problems, the present invention provides a circumcision stapler. The circumcision stapler comprises: an inner ring;

[0011] The outer ring comprises at least two arc segments, wherein the radial inner end of at least one of the arc segments is provided with a piercing portion, and the piercing portion protrudes radially inwardly along the arc segment where it is located;

[0012] The outer ring is suitable for:

[0013] A disconnected configuration is achieved by disconnecting at least two of the arc segments, wherein the inner ring can be inserted into the outer ring in the disconnected configuration; and

[0014] From the disconnected state, a circular ring shape is defined by connecting all the arc segments in sequence, so that the outer ring is encircled by the inner ring and the piercing portion is inserted into the inner ring.

[0015] Optionally, a piercing portion is provided at the radial inner end of each arc segment.

[0016] Optionally, along the radial direction, an end of the piercing portion away from the radial inner end is designed as a knife tip.

[0017] Optionally, the piercing portion is in the shape of a pyramid, and the apex of the pyramid serves as the knife tip.

[0018] Optionally, the outer ring further comprises: a hemostasis portion;

[0019] The hemostatic portion is provided corresponding to each arc segment, and the hemostatic portion extends along the circumference of the corresponding arc segment and is connected to the corresponding arc segment;

[0020] Inwardly along the radial direction of the corresponding arc segment, the hemostatic portion is higher than the inner circumferential surface of the corresponding arc segment.

[0021] Optionally, for the arc segment having the piercing portion, the piercing portion is radially opposite to the hemostatic segment, or the piercing portion passes through a portion of the thickness of the hemostatic segment.

[0022] Optionally, for the arc segment having the piercing portion, the hemostatic portion is provided on at least one axial side of the arc segment, and the hemostatic portion is axially opposite to all the piercing portions.

[0023] Optionally, along the radial direction of the arc segment, the piercing portion has a tip portion away from the radial inner end; along the axial direction of the arc segment, the hemostatic portion has a protrusion that at least protrudes toward the tip portion until it contacts the tip portion.

[0024] Optionally, the inner circumferential surface of the arc segment has a first groove;

[0025] The hemostasis part comprises:

[0026] A base segment, wherein the hemostatic portion is clamped in the first groove of the corresponding arc segment through the base segment;

[0027] The hemostasis segment is connected to the base segment and is located outside the first groove to be suitable for compression and hemostasis.

[0028] Optionally, for the arc segment with the piercing portion, there are two first grooves, which are respectively located on both sides of the axial direction of all the piercing portions along the arc segment;

[0029] The piercing portion is radially opposite to the hemostatic segment, or the piercing portion passes through a portion of the thickness of the hemostatic segment;

[0030] The base body segments are provided with two, which are respectively connected with the hemostasis segments and are clamped in the two first grooves.

[0031] Optionally, the material of the base segment is a rigid material, and the material of the hemostatic segment is a flexible material.

[0032] The present invention also provides a circumcision stapler. The circumcision stapler comprises:

[0033] Inner ring;

[0034] An outer ring as described above;

[0035] In the circular ring form, the inner ring is sleeved within the circular ring defined by all the arc segments, and the piercing portion is inserted into the inner ring.

[0036] Optionally, the radial outer end of the inner ring has a receiving portion, and in the annular shape, the piercing portion is suitable for being inserted into the receiving portion.

[0037] Optionally, the inner ring includes:

[0038] Two axially opposite sub-rings;

[0039] A plurality of connecting parts connecting two of the sub-rings, all of the connecting parts being arranged along the circumferential direction;

[0040] Two of the connecting portions adjacent to each other in the circumferential direction define a piercing hole to serve as the receiving portion.

[0041] Optionally, the inner ring has an outer peripheral surface;

[0042] The outer peripheral surface has a second groove to serve as the receiving portion.

[0043] Optionally, the bottom wall of the second groove has a hole;

[0044] From the disconnected configuration to the annular configuration, the piercing portion is adapted to be inserted into the second groove and the hole.

[0045] Optionally, along the axial direction of the inner ring, the second groove has side walls that are oppositely arranged and a bottom wall connecting the two side walls;

[0046] Each of the side walls has a supporting portion; along the depth direction of the second groove, the supporting portion has a supporting surface facing away from the bottom wall.

[0047] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0048] The outer ring includes at least two arc segments, and the radial inner end of at least one of the arc segments is provided with a piercing portion, which protrudes inwardly along the radial direction of the arc segment. In the annular shape, the outer ring has a plurality of piercing portions distributed circumferentially. In circumcision anastomosis, all arc segments are connected to define an outer ring in an annular shape, the outer ring wraps around the inner plate of the foreskin and buckles the inner ring, and the piercing portion pierces the inner and outer plates of the foreskin and is inserted into the inner ring. The piercing portion pierces the foreskin to form a wound, so that the cells of the inner and outer plates of the foreskin are in direct contact, thereby forming a new wound surface. This method can accelerate the formation of the wound surface and shorten the healing period.

[0049] Moreover, the inner ring and the outer ring are connected together, and the outer ring is restricted by the foreskin through the piercing portion, which can prevent the circumcision stapler from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 is a plan view of the outer ring of the circumcision stapler in a specific embodiment of the present invention in a disconnected state, and the plan view is obtained by looking along the axial direction;

[0051] Figure 2 yes Figure 1 A three-dimensional view of the piercing portion provided in the arc segment in the outer ring shown;

[0052] Figure 3 yes Figure 1 A cross-sectional view of a hemostatic portion of an embodiment of the outer ring shown, wherein the cross section of the cross-sectional view passes through the center of the corresponding arc segment;

[0053] Figure 4 yes Figure 1 A plan view of the radially inner end of an arc segment in the outer ring;

[0054] Figure 5 yes Figure 1 A cross-sectional view of a hemostatic portion of another embodiment of the outer ring, wherein the cross section of the cross-sectional view passes through the center of the corresponding arc segment;

[0055] Figure 6 is a stereoscopic view of an inner ring of a circumcision stapler according to a specific embodiment of the present invention;

[0056] Figure 7 is a three-dimensional diagram of an inner ring of a modified example of a circumcision stapler in a specific embodiment of the present invention;

[0057] Figure 8 It is a stereoscopic view of the inner ring of another modified example in the circumcision stapler according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0058] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0059] The circumcision stapler used for circumcision anastomosis may include: an inner ring and an outer ring.

[0060] Reference Figure 1 The outer ring 1 may have at least two arc segments, and the radial inner end of at least one arc segment is provided with a piercing portion 10, and the piercing portion 10 protrudes inwardly along the radial direction of the arc segment;

[0061] The outer ring 1 is suitable for:

[0062] A disconnected configuration is achieved by disconnecting at least two arc segments, in which the inner ring can be inserted into the outer ring 1; and

[0063] From the disconnected state, a circular ring shape is defined by connecting all arc segments 11 , 12 in sequence, so that the outer ring 1 is looped around the inner ring and the piercing portion 10 is inserted into the inner ring.

[0064] The outer ring 1 may include two arc segments 11 and 12, and the radial inner ends of the two arc segments 11 and 12 are each provided with a piercing portion 10, and the piercing portion 10 protrudes inwardly along the radial direction of the arc segment, such as the piercing portion 10 on the arc segment 11 protrudes inwardly along the radial direction of the arc segment 11, and the piercing portion 10 on the arc segment 12 protrudes inwardly along the radial direction of the arc segment 12. When the two arc segments 11 and 12 are connected together to form a circular ring, the circumferential directions of the two arc segments 11 and 12 are combined into the same circumferential direction, and the radial inner end of the outer ring is provided with a plurality of piercing portions 10 distributed along the circumferential direction.

[0065] When used for circumcision anastomosis, the inner ring and the outer ring 1 are adapted as follows:

[0066] First, through the foreskin mouth plug inner ring to the coronal sulcus;

[0067] Next, the outer ring 1 is operated to be in a disconnected state, and all the arc segments 11 and 12 define a larger accommodation space 1a, which can easily arrange all the arc segments 11 and 12 around the inner ring. At this time, the arc segments 11 and 12 are opposite to the inner ring along the radial direction of the inner ring, and the inner ring is accommodated in this larger accommodation space 1a, and the piercing portion 10 is aligned with the outer plate of the foreskin;

[0068] Next, the arc segments 11 and 12 are connected together to define the outer ring 1 in the shape of a circular ring. In this process, the accommodation space 1a defined by the arc segments 11 and 12 gradually shrinks, so that the piercing portion 10 pierces the outer plate of the foreskin and the inner plate of the foreskin in sequence. After reaching the circular ring shape, the outer ring 1 presses the outer plate of the foreskin, the inner ring is fixed in the outer ring 1, the inner ring and the outer ring 1 clamp the foreskin, and at the same time the piercing portion 10 is inserted into the inner ring in the radial direction, so that the inner ring and the outer ring 1 are connected together.

[0069] Finally, use surgical scissors to cut off the excess foreskin.

[0070] The piercing portion 10 pierces the foreskin to form a wound, so that the cells of the inner and outer plates of the foreskin are in direct contact, thereby forming a new wound surface. This method can accelerate the formation of the wound surface and shorten the healing period. Moreover, since the inner ring and the outer ring 1 are connected by the piercing portion 10, the piercing portion 10 pierces the inner and outer plates of the foreskin, and the inner ring and the outer ring 1 are both restricted by the foreskin, which reduces the risk of the circumcision stapler falling off.

[0071] In the present technical solution, a piercing portion 10 is provided at the radial inner end of at least one of the arc segments, which includes: the radial inner end of each arc segment has a piercing portion 10, and further, the radial inner end of each arc segment can be provided with a plurality of piercing portions 10 arranged along the circumferential direction; or, the radial inner ends of a plurality of arc segments have a plurality of piercing portions 10. In any case, in the circular ring form, the radial inner end of the outer ring 1 has a plurality of piercing portions 10 to ensure that an effective wound surface is formed during the operation.

[0072] In the annular form, a plurality of piercing portions 10 are arranged around the inner ring, and more piercing portions 10 can be densely arranged along the circumferential direction. After surgery, a plurality of piercing portions 10 can effectively accelerate wound healing and better shorten the postoperative healing period. Moreover, this can make the wound morphology consistent and enhance the aesthetics of the wound. Therefore, the number of piercing portions, the arrangement density and other parameters can be reasonably selected and are not necessarily limited to the present technical solution.

[0073] In the radial direction, the end of the piercing portion 10 away from the radial inner end is designed as a knife tip 100, which is conducive to easily piercing the outer plate and the inner plate of the foreskin. Figure 2 The piercing portion 10 may be in the shape of a pyramid, with the apex of the pyramid serving as the blade tip 100 .

[0074] Thus, the piercing portion 10 is pyramid-shaped and has a plurality of side edges 101, and two adjacent side edges 101 intersect at an edge line. Each edge line can be regarded as a sharp edge, which is conducive to cutting the foreskin, so that the piercing portion 10 can easily pierce the foreskin.

[0075] Reference Figure 1, the outer ring 1 may include two arc segments 11 and 12, and one end of the two arc segments 11 and 12 along their respective circumferences (respectively, the first end a1 of the arc segment 11 and the first end a2 of the arc segment 12) is rotationally connected and shares a rotation axis 18. The other ends of the two arc segments 11 and 12 along their respective circumferences (respectively, the second end b1 of the arc segment 11 and the second end b2 of the arc segment 12) can be disconnected and closed. In the disconnected form, the second ends b1 and b2 of the two arc segments 11 and 12 are disconnected, and the two arc segments 11 and 12 are respectively opened outward around the rotation axis 18, which can form a larger accommodating space 1a. From the disconnected form to the circular ring form, the two arc segments 11 and 12 can be buckled inward in the opposite direction around the rotation axis, so that the two second ends b1 and b2 are closed, thereby achieving the purpose of limiting the circular ring form.

[0076] In the annular form, the second ends b1 and b2 of the arc segments 11 and 12 are respectively connected by snap-fit. For example, the second end b1 has a first connecting portion 13, and the first connecting portion 13 has a mounting hole 13a; the second end b2 has a second connecting portion 14, and the second connecting portion 14 has an insertion portion 14a. In the annular form, the first connecting portion 13 and the second connecting portion 14 are axially opposite, and the insertion portion 14a is inserted into the mounting hole 13a and clamped in the mounting hole 13a, connecting the first connecting portion 13 and the second connecting portion 14, and realizing the closure of the two second ends b1 and b2. In the present technical solution, the first connecting portion 13 is provided with two mounting holes 13a, and the second connecting portion 14 is provided with two corresponding insertion portions 14a, and the insertion portion 14a and the mounting hole 13a correspond one to one, and a snap-fit ​​connection can be formed. In addition, each of the first connecting portion and the second connecting portion is provided with a mounting hole and an insertion portion, and the insertion portion of each of the two connecting portions is inserted into the mounting hole on the other connecting portion.

[0077] Each arc segment has circumferential protrusions at both ends of the circumference. The first end a1 and the second end b1 of the arc segment 11 have first protrusions 110 respectively, and the first end a2 and the second end b2 of the arc segment 12 have second protrusions 120 respectively. In the disconnected form, the first protrusion 110 of the first end a1 and the second protrusion 120 of the first end a2 are separated, and the first protrusion 110 of the second end b1 and the second protrusion 120 of the second end b2 are separated. In the annular form, the first protrusion 110 of the first end a1 and the second protrusion 120 of the first end a2 can overlap in the axial direction, and the first protrusion 110 of the second end b1 and the second protrusion 120 of the second end b2 can overlap in the axial direction, which can avoid the formation of a gap in the outer ring 1 in the circumferential direction, resulting in the inability to effectively block the blood flow in the redundant foreskin, resulting in slow healing.

[0078] The outer ring 1 may further include: a hemostatic portion 15. A hemostatic portion 15 is provided for each arc segment, and the hemostatic portion 15 extends along the circumference of the corresponding arc segment and is connected to the corresponding arc segment; along the radial direction inward of the corresponding arc segment, the hemostatic portion 15 is higher than the inner circumference of the corresponding arc segment. For example, a hemostatic portion 15 is provided for the corresponding arc segment 11, and the hemostatic portion 15 extends along the circumference of the arc segment 11 and is connected to the arc segment 11; along the radial direction inward of the arc segment 11, the hemostatic portion 15 is higher than the inner circumference of the arc segment 11. This can be analogized to the arc segment 12 and the hemostatic portion 15 thereon.

[0079] This can achieve the following effects: during the operation, the outer ring 1 and the inner ring clamp the foreskin, and the hemostatic part 15 can compress the foreskin. When the piercing part 10 pierces the foreskin and circumcises the excess foreskin, bleeding is induced, and the hemostatic part 15 provides a compression hemostasis effect, which can stop bleeding in time and prevent heavy bleeding. Moreover, the hemostatic part 15 is integrated with the arc segments 11 and 12, so there is no need to perform additional compression hemostasis during the operation, thereby improving the efficiency of the operation.

[0080] In the disconnected form, the two hemostatic parts 15 corresponding to the two arc segments 11 and 12 are also disconnected; in the ring form, the two hemostatic parts 15 can be combined into a ring, and compression and hemostasis can be performed along a circle, with a better hemostatic effect. Figure 1 , a hemostatic portion 15 is provided on at least one axial side of the corresponding arc segment, which includes: a hemostatic portion 15 is provided on one axial side of the corresponding arc segment; or a hemostatic portion 15 is provided on both axial sides of the corresponding arc segment. Taking arc segment 11 as an example, the hemostatic portion 15 can be provided on at least one axial side of arc segment 11, and the same is true for arc segment 12.

[0081] For the arc segment 11 with the piercing portion 10, the hemostatic portion 15 is axially opposite to all the piercing portions 10. During the operation, when the piercing portion 10 pierces the foreskin, the hemostatic portion 15 is compressed and deformed to achieve the purpose of timely and effective hemostasis. This can be analogized to the relative position relationship between the arc segment 12 and the hemostatic portion 15.

[0082] In the natural state, the hemostatic part 15 is higher than the piercing part 10 in the radial direction, which means higher than the blade tip 100. During the operation, from the disconnected form to the circular ring form, the hemostatic part 15 can first contact the foreskin and gradually compress the foreskin; after the outer ring 1 is fixed to the inner ring, the hemostatic part 15 can provide the effect of compressing and stopping bleeding.

[0083] Reference Figure 3 Combined with Figure 1, along the radial direction of the arc segment 11, the piercing portion 10 has a tip portion (the end where the blade tip 100 is located) away from the radial inner end of the arc segment 11; along the axial direction of the arc segment 11, the hemostatic portion 15 has a protrusion 150 that at least protrudes toward the tip portion until it contacts the tip portion. The protrusion 150 contacts the tip portion of the piercing portion 10, and when the piercing portion 10 pierces the foreskin, the protrusion 150 can compress the wound and stop bleeding in time. When the hemostatic portion 15 is provided on both axial sides of the corresponding arc segment 11, the protrusions 150 of the two hemostatic portions 15 are axially opposite and can wrap the piercing portion 10.

[0084] Combined with reference Figure 4 , the inner circumference of the arc segment 11 has a first groove 11a;

[0085] The hemostatic part 15 may include:

[0086] A base segment 16, wherein the hemostatic portion 15 is clamped in the first groove 11a of the arc segment 11 through the base segment 16;

[0087] The hemostatic segment 17 is connected to the base segment 16 and is located outside the first groove 11a so as to be suitable for compression and hemostasis.

[0088] In the hemostatic part 15, the base section 16 and the hemostatic section 17 can be split, and the two are manufactured separately and then connected together. In this case, the base section 16 can be made of a rigid material and can be stably clamped in the first groove 11a. The rigid material can be hard plastic.

[0089] The hemostatic segment 17 can be made of a flexible material suitable for compression deformation to avoid damage to the foreskin. For example, the hemostatic segment 17 can be a sponge pad. The base segment 16 and the hemostatic segment 17 can be connected by bonding.

[0090] In addition, the base section 16 and the hemostasis section 17 can be an integral piece, which is manufactured by integral molding, and both of them can be sponge pads.

[0091] The first groove 11a extends along the circumference of the arc segment 11 and is arc-shaped. Accordingly, the base segment 16 can be arc-shaped, adapted to the shape of the first groove 11a, and is integrally clamped in the first groove 11a. In addition, the base segment 16 can include a plurality of separate independent parts, and the plurality of independent parts are simultaneously clamped in the first groove 11a, which can also play a positioning effect. The hemostatic segment 17 is arc-shaped (refer to Figure 1 ), which is beneficial for compressing and stopping bleeding around the foreskin.

[0092] The inner circumference of the arc segment 11 is provided with two first grooves 11a, which are respectively distributed on both sides of the axial direction of all the piercing parts 10 along the arc segment 11. In this way, two hemostatic parts 15 can be respectively provided at both ends of the axial direction of the arc segment 11 corresponding to the two first grooves 11a, and the hemostatic sections 17 of the two hemostatic parts 15 are two independent parts. During the operation, compression hemostasis is performed from both sides of the axial direction of the arc segment 11, and the hemostatic effect is good. In addition, the hemostatic part can be provided only on one side of the axial direction of the corresponding arc segment.

[0093] For other alternatives, refer to Figure 5 Combined with Figure 2 The present invention also provides another hemostatic portion 15'. Using this hemostatic portion 15', the piercing portion 10 can be arranged to be radially opposite to the hemostatic portion 15', or the piercing portion 10 can pass through a portion of the thickness of the hemostatic portion 15'.

[0094] Specifically, in such a hemostatic portion 15', the base segment 16' may have two, which are respectively connected to the hemostatic segment 17' and are clamped in the two first grooves 11a (refer to Figure 4 ). In this solution, the hemostatic segment 17′ is connected to two base segments 16′ at the same time, and the two base segments 16′ support one hemostatic segment 17′ at the same time. In particular, for the arc segment 11 with the piercing portion 10, all the piercing portions 10 on the arc segment 11 can be radially opposite to the hemostatic segment 17′, or the piercing portion 10 can pass through the hemostatic segment 17′ of a partial thickness. In this case, before the operation, the hemostatic segment 17′ hides the tip 100 of the piercing portion 10. This can prevent the doctor from piercing the skin with the piercing portion 10 when installing the outer ring 1, which is beneficial to protecting the patient. In this way, the hemostatic segment 17′ can timely and effectively compress and stop bleeding on the wound surface formed by the piercing portion 10, and the effect is remarkable.

[0095] In addition to using the first groove 11 a to connect the hemostatic part 15 , the hemostatic part may be directly bonded to one axial end surface or both axial end surfaces of the corresponding arc segment.

[0096] The arrangement of the arc segment 11 and the hemostatic portion 15 thereon and the connection therebetween can be analogized to the arrangement of the arc segment 12 and the hemostatic portion 15 thereon and the connection therebetween.

[0097] Reference Figure 6 Combined with Figure 1 The radial outer end of the inner ring 2 may have a receiving portion, and in the form of a circular ring, the piercing portion 10 is suitable for inserting into the receiving portion. This can bring the following technical effects:

[0098] On the one hand, during the operation, the piercing portion 10 first contacts the outer plate of the foreskin. Since the foreskin has a certain elasticity, the foreskin, supported by the edge of the opening of the receiving portion, will first press the foreskin to gradually deform from the opening of the receiving portion to the inside of the receiving portion until it reaches a tight state. In the tight state, the piercing portion 10 can easily pierce the foreskin. Therefore, the receiving portion is conducive to the piercing portion 10 piercing the foreskin, improving the efficiency and success rate of the operation.

[0099] On the other hand, during and after the operation, the piercing portion 10 can be retained in the receiving portion, reducing the radial gap between the outer ring 1 and the inner ring 2, allowing the outer ring 1 and the inner ring 2 to clamp the foreskin, effectively avoiding excess blood flow in the foreskin, and facilitating the healing rate.

[0100] The inner ring 2 may include: two axially opposite sub-rings 20;

[0101] A plurality of connecting portions 21 connecting two sub-rings 20, all of which are arranged along the circumferential direction;

[0102] Two circumferentially adjacent connection portions 21 define a piercing hole 2a to serve as the receiving portion.

[0103] The piercing holes 2a and the piercing parts 10 may correspond one to one, and the corresponding piercing parts 10 may be inserted into the piercing holes 2a and retained therein. This may bring the following technical effects:

[0104] On the one hand, during the operation, the outer ends of the connecting portion 21 and the sub-ring 20 can support the foreskin until the foreskin is elastically deformed to a tight state;

[0105] On the other hand, the piercing portion 10 passes through the inner and outer plates of the foreskin, and the tip of the knife tip 100 is stuck in the piercing hole 2a of the inner ring 2, so that the piercing portion 10 is tightly connected with the inner ring 2. This can enhance the fixing effect of the circumcision stapler on the foreskin and better prevent the circumcision stapler from falling off.

[0106] As an alternative, refer to Figure 7 Combined with Figure 1 The inner ring 2' has an outer peripheral surface, and the outer peripheral surface has a second groove 2b as the receiving portion. During the operation, at the opening position of the second groove 2b, the side wall of the second groove 2b can support the foreskin, so that the foreskin is tightened to a tight state.

[0107] The second groove 2b has a bottom wall 22, and the bottom wall 22 may have a hole 2c. From the disconnected form to the annular form, the piercing portion 10 may be inserted into the second groove 2b and the hole 2c, so that the tip of the knife tip 100 is stuck in the hole 2c, thereby enhancing the fixing effect.

[0108] The second groove 2b is annular and surrounds the inner ring 2' in a circumferential direction. As a variation, the second groove can be a plurality of independent grooves arranged in a circumferential direction of the inner ring, and the piercing portion can be inserted into the corresponding grooves.

[0109] As another alternative, refer to Figure 8 Combined with Figure 1 The second groove 2d has axially opposite side walls 23 and a bottom wall 24 connecting the two side walls 23. Each side wall 23 has a support portion 25, and along the depth direction of the second groove 2d, the support portion 25 has a support surface 250 facing away from the bottom wall 24. From the disconnected form to the annular form, the support surface 250 can support the foreskin and promote the foreskin to reach a taut state.

[0110] Along the depth direction of the second groove 2d, the second groove 2d is divided into a first section d1 and a second section d2, and the first section d1 is closer to the bottom wall 24 than the second section d2. Each side wall 23 of the second groove 2d includes a side wall portion located in the first section d1 and a side wall portion located in the second section d2, and the bottom wall 24 of the second groove 2d is the bottom wall of the first section d1. The distance between the axial side walls of the first section d1 is smaller than the distance between the axial side walls of the second section d2, so that the axial side walls of the first section d1 can serve as the support portion 25, and the second section d2 has a bottom wall as the support surface 250.

[0111] This provides a feasible solution for the support portion 25. In other feasible solutions, along the depth direction of the second groove, the second groove can be divided into three sections, namely, a bottom section, a middle section and a top section, and the bottom section is deeper than the top section. The distance between the axial side walls of the middle section is smaller than the distance between the axial side walls of the top section and the bottom section, and the middle section can serve as a support portion. Alternatively, in addition to this, the side wall at the opening position of the second groove can be designed to be turned inward to form an inner flange, and the inner flange can serve as a support portion.

[0112] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A circumcision stapler, characterized in that: include: Inner ring; The outer ring comprises at least two arc segments, at least one of the arc segments has a piercing portion at its radial inner end, the piercing portion protrudes inwardly in the radial direction of the arc segment; along the radial direction, the end of the piercing portion away from the radial inner end is designed as a knife tip, and the piercing portions are densely arranged along the circumferential direction; the piercing portion is used to pierce the foreskin to form a wound, so that the cells of the inner and outer plates of the foreskin are in direct contact, forming a wound surface different from that of shearing the foreskin; The outer ring is suitable for: A disconnected configuration is achieved by disconnecting at least two of the arc segments, wherein the inner ring can be inserted into the outer ring in the disconnected configuration; and From the disconnected state, a circular ring shape is defined by connecting all the arc segments in sequence, so that the outer ring is encircled by the inner ring and the piercing portion is inserted into the inner ring; the radial outer end of the inner ring has a receiving portion, and in the circular ring shape, the piercing portion is suitable for inserting into the receiving portion, so that the inner ring and the outer ring are connected together; after the inner ring and the outer ring are connected together, the excess foreskin is cut off; The circumcision stapler is used to clamp the foreskin during the circumcision operation and form a wound surface different from the shearing foreskin through the piercing part, so as to shorten the healing period of the circumcision anastomosis; The circumcision stapler further comprises: a hemostatic portion connected to the corresponding arc segment; the inner circumferential surface of the arc segment is provided with two first grooves, which are respectively located on both sides of the piercing portion along the axial direction of the arc segment; The hemostatic part comprises: a base segment, the hemostatic part is clamped in the first groove of the corresponding arc segment through the base segment; and a hemostatic segment, connected to the base segment, located outside the first groove to be suitable for compression hemostasis; The piercing portion is radially opposite to the hemostatic segment, or the piercing portion passes through a portion of the thickness of the hemostatic segment; the base segment has two, which are respectively connected to the hemostatic segment and are clamped in the two first grooves; The material of the base segment is a rigid material, and the material of the hemostatic segment is a flexible material.

2. The circumcision stapler according to claim 1, characterized in that: The piercing portion is in the shape of a pyramid, and the apex of the pyramid serves as the knife tip.

3. The circumcision stapler according to claim 1, characterized in that: The hemostatic portion is provided corresponding to each arc segment, and the hemostatic portion extends along the circumference of the corresponding arc segment; Inwardly along the radial direction of the corresponding arc segment, the hemostatic portion is higher than the inner circumferential surface of the corresponding arc segment.

4. The circumcision stapler according to claim 3, characterized in that: Along the radial direction of the arc segment, the piercing portion has a tip portion away from the radial inner end; along the axial direction of the arc segment, the hemostatic portion has a protrusion that at least protrudes toward the tip portion until it contacts the tip portion.

5. The circumcision stapler according to claim 1, characterized in that: The inner ring includes: Two axially opposite sub-rings; A plurality of connecting parts connecting two of the sub-rings, all of the connecting parts being arranged along the circumferential direction; Two of the connecting portions adjacent to each other in the circumferential direction define a piercing hole to serve as the receiving portion.

6. The circumcision stapler according to claim 1, characterized in that: The inner ring has an outer peripheral surface; The outer peripheral surface has a second groove to serve as the receiving portion.

7. The circumcision stapler according to claim 6, characterized in that: The bottom wall of the second groove has a hole; From the disconnected configuration to the annular configuration, the piercing portion is adapted to be inserted into the second groove and the hole.

8. The circumcision stapler according to claim 6, characterized in that: Along the axial direction of the inner ring, the second groove has side walls that are arranged opposite to each other and a bottom wall connecting the two side walls; Each of the side walls has a supporting portion; along the depth direction of the second groove, the supporting portion has a supporting surface facing away from the bottom wall.

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