Skull-dura mater anastomosis nail and rapid anastomosis device

Abstract

The utility model relates to the technical field of skull-dura mater anastomosis, in particular to a skull-dura mater anastomosis nail and a rapid anastomosis device.The skull-dura mater anastomosis nail comprises an upper nail body and a lower nail body, and the upper nail body is sequentially provided with a first skull anastomosis part, a first inserting part and a first dura mater anastomosis part; the lower nail body is sequentially provided with a second skull anastomosis part, a second inserting part and a second dura mater anastomosis part, the first inserting part is detachably connected with the second inserting part, the first skull anastomosis part is opposite to the second skull anastomosis part, and the first dura mater anastomosis part is also opposite to the second dura mater anastomosis part; the first skull anastomosis part and the second skull anastomosis part are connected with the skull from the two sides of the skull respectively, and the first dura mater anastomosis part penetrates through the dura mater and then is detachably connected with the second dura mater anastomosis part. A user can rapidly suture the skull and the dura mater through the anastomosis nail.

Description

Technical Field

[0001] The utility model relates to the technical field of skull-dura mater anastomosis, and more specifically to a skull-dura mater anastomosis nail and a rapid anastomosis device. Background Art

[0002] In neurosurgery such as intracerebral hematoma removal and decompressive craniectomy, separating and opening the dura mater from the skull is a necessary step for intracranial surgery, but how to deal with the opened dura mater when the skull is closed at the end of the operation has always been a controversial problem. In the past, it was believed that suturing the dura mater after cranial surgery was the key to reducing postoperative complications such as pseudomeningocele, cerebrospinal fluid leakage, hydrocephalus and infection. However, clinical studies have shown that rapid skull closure without tight dura mater suture is a safe measure. Rapid skull closure is not associated with a high incidence of surgical complications (spinal fluid leakage, wound infection, brain abscess or subgaleal effusion), and it can also shorten the operation time and reduce the cost of surgery without increasing complications.

[0003] However, regardless of whether the dura mater is sutured or not, because the dura mater and skull are separated for a long time, when the skull defect is repaired after surgery, the patient's dura mater tends to sink downward, which can lead to one of the most serious complications after skull repair, namely, hematoma and effusion under the dura mater repair material, causing serious consequences for the patient.

[0004] Currently, the commonly used skull-dura mater suturing technique is needle and thread suturing, but needle and thread suturing requires making a hole in the skull and repeatedly pulling up the dura mater. The steps are cumbersome and time-consuming, the suturing and fixation efficiency is not high, the dura mater is separated from the skull for a long time, and there is a risk of dura mater collapse. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art and provide a skull-dura mater anastomosis nail, which can quickly sew the dura mater and the skull.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] Provided is a skull-dura mater anastomosis nail, comprising an upper nail body and a lower nail body, wherein the upper nail body is sequentially provided with a first skull anastomosis portion, a first plug portion and a first dura mater anastomosis portion, and the lower nail body is sequentially provided with a second skull anastomosis portion, a second plug portion and a second dura mater anastomosis portion, wherein the first plug portion and the second plug portion are detachably connected, the first skull anastomosis portion and the second skull anastomosis portion are arranged opposite to each other, and the first dura mater anastomosis portion and the second dura mater anastomosis portion are also arranged opposite to each other; the first skull anastomosis portion and the second skull anastomosis portion are respectively connected to the skull from both sides of the skull, and the first dura mater anastomosis portion is detachably connected to the second dura mater anastomosis portion after passing through the dura mater.

[0008] The first skull anastomosis part, the first plug part and the first dura mater anastomosis part are integrally formed, and the second skull anastomosis part, the second plug part and the second dura mater anastomosis part are also integrally formed. With this arrangement, when performing skull-dura mater suturing, the operator only needs to split the skull-dura mater anastomosis nail into an upper nail body and a lower nail body, and make the skull between the first skull anastomosis part and the second skull anastomosis part, and make the dura mater between the first dura mater anastomosis part and the second dura mater anastomosis part, and then press the upper nail body and the lower nail body to make the first plug part and the second plug part plug, and the first skull anastomosis part and the second skull anastomosis part clamp and fix the skull, and the first dura mater anastomosis part and the second dura mater anastomosis part pass through the dura mater to connect and fix the dura mater, thereby completing the fixed connection between the skull and the dura mater. Compared with the traditional needle and thread suturing method, this method does not require opening a hole in the skull, and does not require repeatedly pulling the dura mater when guiding the thread, which greatly improves the suturing efficiency and suturing safety and reduces the risk of dura mater collapse.

[0009] Preferably, opposite sides of the first skull anastomotic part and the second skull anastomotic part are provided with anastomotic teeth.

[0010] Through this arrangement, the anastomotic teeth can increase the friction between the first skull anastomotic part, the second skull anastomotic part and the skull, and further enhance the clamping and fixing effect of the first skull anastomotic part and the second skull anastomotic part on the skull.

[0011] Preferably, the exteriors of the first skull anastomosis part and the second skull anastomosis part are both arc-shaped structures.

[0012] This arrangement can reduce the rejection reaction between the skull-dura mater suture staples and the human body after suturing. The arc-shaped structure can buffer the pressure and help reduce the occurrence of complications such as effusion.

[0013] Preferably, the first plug-in part is a tube structure, the second plug-in part is a column structure, and the second plug-in part can be inserted into the first plug-in part for plugging. With this arrangement, the user can insert the second plug-in part into the first plug-in part for plugging, so that the upper nail body and the lower nail body are tightly connected.

[0014] Preferably, a clamping protrusion is provided in the first plug-in portion, and a clamping groove corresponding to the clamping protrusion is provided on the second plug-in portion.

[0015] Through this arrangement, when the second plug-in part is inserted into the first plug-in part, the snap-in protrusion can be embedded in the snap-in groove, so that the second plug-in part and the first plug-in part are limited to prevent relative displacement between the two, thereby greatly improving the stability of the connection between the upper nail body and the lower nail body.

[0016] Preferably, a dura mater nail is provided on the first dura mater anastomosis portion, and a connecting hole corresponding to the dura mater nail is provided on the second dura mater anastomosis portion, and the dura mater nail can be inserted into the connecting hole and fixedly connected to the connecting hole.

[0017] With this arrangement, when suturing is performed, the dura mater nail is inserted into the connecting hole after passing through the dura mater, and the dura mater nail is fixed in the connecting hole, so that the dura mater is fixed and the stability of the suturing is improved.

[0018] Furthermore, the length of the dura mater nail is greater than the height of the second plug-in portion of the column structure. Through this arrangement, it can be ensured that when the second plug-in portion is plugged into the first plug-in portion, the dura mater nail is connected to the connecting hole.

[0019] Furthermore, the dura mater nail can pass through the connection hole and be bent outside the connection hole, thereby being fixedly connected to the connection hole.

[0020] A quick anastomosis device comprises a first support rod, a second support rod, a third support rod and a rotating shaft. The first support rod and the third support rod are rotatably connected by the rotating shaft to form a clamp-shaped structure. The second support rod is located between the first support rod and the third support rod, and is rotatably connected to the first support rod and the third support rod through the rotating shaft passing through the end of the second support rod; a first elastic member is also provided between the first support rod and the second support rod, and the first elastic member connects the first support rod and the second support rod; a pressure nail plate is provided at the end of the first support rod, a first groove for placing an upper nail body is provided on the second support rod, a through hole is provided at the end of the first groove, and a second groove for a lower nail body is provided on the third support rod; the upper nail body can pass through the through hole and be connected to the lower nail body under the action of the pressure nail plate.

[0021] In order to facilitate the description of the positional relationship, the position of the rotating shaft is divided into the following: the side where the first support rod, the second support rod and the third support rod are all located is the nail pressing part, and the side where only the first support rod and the third support rod are located is the holding part. With this arrangement, when suturing is performed, a plurality of nail rows consisting of upper nail bodies arranged in parallel can be placed in the first groove, and there is a certain degree of connectivity between the upper nail bodies in the nail row; then the lower nail body is placed in the second groove, and the through hole is aligned with the part to be sutured, the operator holds the first support rod and the third support rod in the holding part, the first support rod and the third support rod in the nail pressing part rotate towards each other, and the first support rod compresses the first elastic member, thereby pushing the second support rod to rotate toward the third support rod; after the second support rod and the third support rod abut against each other, the first support rod further compresses the first elastic member, so that the nail pressing plate enters the first groove, pushes the upper nail body above the through hole to separate from the nail row, and the separated upper nail body passes through the through hole and is connected to the lower nail body in the second groove; then the operator separates the first support rod and the third support rod of the holding part, the second support rod moves with the first support rod under the action of the first elastic member, the second support rod and the third support rod are separated, and the anastomosis nail remains on the anastomosis object, completing the anastomosis of the skull and the dura mater.

[0022] Preferably, a second elastic member and an upper push plate are also provided in the first groove, and the upper push plate is slidably arranged in the first groove, one end of the second elastic member is connected to the end of the first groove away from the through hole, and the other end is connected to the upper push plate; a third elastic member and a lower push plate are also provided in the second groove, and the lower push plate is slidably arranged in the second groove, one end of the third elastic member is connected to the second groove, and the other end is connected to the lower push plate.

[0023] With this arrangement, the upper push plate away from the second elastic member on one side and the first groove forms an accommodating space for placing the upper nail body, and the lower push plate away from the third elastic member on one side and the second groove forms an accommodating space for placing the lower nail body; when a nail row consisting of upper nail bodies is placed in the first groove, the second elastic member pushes the upper push plate to squeeze the nail row and move it toward the through hole, and when the nail pressing plate presses the upper nail body in the first position down into the through hole, under the action of the upper push plate, the upper nail body behind the nail row will automatically fill the gap above the through hole; similarly, multiple lower nail bodies are placed in the second groove, and the third elastic member can push the lower nail body to move downward through the through hole via the lower push plate, and the user can continuously press the first support rod and the third support rod to continuously connect the lower nail body with the upper nail body, thereby quickly completing the suturing work.

[0024] Preferably, a first limiting groove matching with the bottom of the upper nail body is provided at the bottom of the first groove, and a second limiting groove matching with the top of the lower nail body is provided at the bottom of the second groove.

[0025] Through this arrangement, when the upper push plate pushes the upper nail body and the lower push plate pushes the lower nail body to move, it can ensure that the upper nail body and the lower nail body move along the first limiting groove and the second limiting groove respectively, avoiding the upper nail body and the lower nail body from offsetting during the movement.

[0026] Preferably, an inclined platform is further provided at the end of the second groove close to the through hole.

[0027] Through this arrangement, under the action of the lower push plate, the lower nail body located directly below the through hole will be pushed onto the inclined platform, so that the second plug-in portion of the lower nail body protrudes from the edge of the second groove, thereby making it easier to connect the upper nail body and the lower nail body, and facilitating the detachment of the lower nail body from the second groove after the matching is completed.

[0028] Preferably, a fourth elastic member for resetting the first support rod and the third support rod is further provided between the first support rod and the third support rod, and the fourth elastic member can be installed at the gripping portion.

[0029] With this arrangement, after the user completes an anastomosis operation, the user releases the first support rod and the third support rod. Under the action of the fourth elastic member, the first support rod and the third support rod will automatically reset, thereby improving the user's operational convenience.

[0030] Compared with the prior art, the beneficial effects of the utility model are:

[0031] (1) Provided is a skull-dura mater anastomosis stapler, which does not require opening a hole in the skull and repeated threading. The skull and dura mater are clamped from both the upper and lower sides by means of a split upper and lower stapler body. The double anastomosis structure can reduce the risk of dura mater falling off the skull, and also reduce the probability of epidural hematoma and effusion, thereby greatly improving suturing efficiency and safety, and reducing the risk of dura mater collapse.

[0032] (2) A rapid anastomosis device is provided, which enables the user to quickly connect the upper nail body with the lower nail body and anastomose the dura mater with the skull through the upper nail body and the lower nail body, thereby solving the technical problem of dura mater contraction and depression after craniotomy, reducing the occurrence of postoperative complications, and greatly improving surgical efficiency and shortening surgical time.

[0033] (3) By setting the first groove and the second groove on the rapid anastomosis device, the user can load multiple upper nail bodies and lower nail bodies at one time, and can perform rapid suturing operations continuously, greatly improving the suturing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 The utility model is a schematic diagram of the structure of a skull-dura mater anastomosis stapler.

[0035] Figure 2 The utility model is a schematic diagram of the anastomosis of a skull-dura mater anastomosis staple.

[0036] Figure 3 The utility model is a schematic diagram of the connection between a skull-dura mater anastomosis nail and a skull and a dura mater.

[0037] Figure 4 This is a schematic diagram of a first embodiment of a rapid anastomosis device of the utility model from a first viewing angle.

[0038] Figure 5 This is a schematic diagram of a first embodiment of a rapid anastomosis device of the utility model from a second viewing angle.

[0039] Figure 6 It is a structural schematic diagram of a second embodiment of a rapid anastomosis device of the utility model.

[0040] Figure 7 It is a working schematic diagram of a second embodiment of a rapid anastomosis device of the utility model.

[0041] Figure 8 The utility model is a schematic diagram of the internal structure of a rapid anastomosis device.

[0042] The illustrations are as follows:

[0043] 1. Upper nail body; 11. First skull anastomosis part; 111. Anastomosis teeth; 12. First plug-in part; 121. Snap-on protrusion; 13. First dura mater anastomosis part; 131. Dura mater nail; 2. Lower nail body; 21. Second skull anastomosis part; 22. Second plug-in part; 221. Snap-on groove; 23. Second dura mater anastomosis part; 231. Connecting hole; 3. First support rod; 31. Pressing nail plate; 312. Fourth elastic member; 4. Second support rod; 41. First elastic member; 42. First groove; 421. Through hole; 422. Second elastic member; 423. Upper push plate; 5. Third support rod; 51. Second groove; 511. Third elastic member; 512. Lower push plate; 513. Inclined platform; 6. Rotating shaft; 7. Skull; 8. Dura mater. DETAILED DESCRIPTION

[0044] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0045] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0046] Example 1

[0047] like Figures 1 to 3The figure shows a first embodiment of a skull-dura mater anastomosis nail of the utility model, comprising an upper nail body 1 and a lower nail body 2. The upper nail body 1 is sequentially provided with a first skull anastomosis portion 11, a first plug portion 12 and a first dura mater anastomosis portion 13, and the lower nail body 2 is sequentially provided with a second skull anastomosis portion 21, a second plug portion 22 and a second dura mater anastomosis portion 23. The first plug portion 12 and the second plug portion 22 are detachably connected. The first skull anastomosis portion 11 and the second skull anastomosis portion 21 are arranged opposite to each other, and the first dura mater anastomosis portion 13 is also arranged opposite to the second dura mater anastomosis portion 23; the first skull anastomosis portion 11 and the second skull anastomosis portion 21 are respectively connected to the skull 7 from both sides of the skull 7, and the first dura mater anastomosis portion 13 is detachably connected to the second dura mater anastomosis portion 23 after passing through the dura mater 8.

[0048] With this arrangement, when performing skull-dura mater suturing, the operator only needs to split the skull-dura mater anastomosis nail into an upper nail body 1 and a lower nail body 2, and position the skull 7 between the first skull anastomosis part 11 and the second skull anastomosis part 21, and position the dura mater 8 between the first dura mater anastomosis part 13 and the second dura mater anastomosis part 23, and then press the upper nail body 1 and the lower nail body 2 to plug the first plug part 12 with the second plug part 22, so that the first skull anastomosis part 11 and the second skull anastomosis part 21 clamp and fix the skull 7, and the first dura mater anastomosis part 13 and the second dura mater anastomosis part 23 clamp and fix the dura mater 8, thereby completing the fixed connection between the skull 7 and the dura mater 8. Compared with the traditional needle and thread suturing method, this method does not require opening a hole in the skull 7, and does not require repeatedly pulling the dura mater 8 when guiding the wire, which greatly improves the suturing efficiency and suturing safety.

[0049] As an embodiment of the present invention, a plurality of anastomotic teeth 111 are disposed on opposite sides of the first skull anastomotic part 11 and the second skull anastomotic part 21 .

[0050] Through this arrangement, the anastomotic teeth 111 can increase the friction between the first skull anastomotic part 11, the second skull anastomotic part 21 and the skull 7, further improving the clamping and fixing effect of the first skull anastomotic part 11 and the second skull anastomotic part 21 on the skull 7.

[0051] As an embodiment of the present invention, the exteriors of the first skull anastomosis part 11 and the second skull anastomosis part 21 are both arc-shaped structures.

[0052] This arrangement can reduce the rejection reaction between the skull-dura mater suture staples and the human body after suturing. The arc-shaped structure can buffer the pressure and help reduce the occurrence of complications such as effusion.

[0053] As an embodiment of the present invention, the first plug-in portion 12 is a tube structure, and the second plug-in portion 22 is a column structure, and the second plug-in portion 22 can be inserted into the first plug-in portion 12 for plugging. Within the scope of knowledge of those skilled in the art, the first plug-in portion 12 can also be set as a column structure, and the second plug-in portion 22 can be set as a corresponding tube structure.

[0054] As an embodiment of the present utility model, a clamping protrusion 121 is provided in the first plug-in portion 12 , and a clamping groove 221 corresponding to the clamping protrusion 121 is provided on the second plug-in portion 22 .

[0055] Through this arrangement, when the second plug-in portion 22 is inserted into the first plug-in portion 12, the snap-in protrusion 121 can be embedded in the snap-in groove 221, so that the second plug-in portion 22 and the first plug-in portion 12 are limited, avoiding relative displacement between the second plug-in portion 22 and the first plug-in portion 12 after insertion, thereby greatly improving the stability of the connection between the upper nail body 1 and the lower nail body 2.

[0056] As an embodiment of the present invention, a dura mater nail 131 is provided on the first dura mater anastomosis part 13, and a connecting hole 231 corresponding to the dura mater nail 131 is provided on the second dura mater anastomosis part 23, and the dura mater nail 131 can be inserted into the connecting hole 231 for plugging.

[0057] With this arrangement, when suturing is performed, the dura mater nail 131 passes through the dura mater 8 and then is inserted into the connecting hole 231, so that the dura mater 8 is fixed and the stability of the suturing is improved.

[0058] As an embodiment of the present invention, the length of the dura mater nail 131 is greater than the height of the second plug-in portion 22 of the column structure. This arrangement ensures that when the second plug-in portion 22 is plugged into the first plug-in portion 12, the dura mater nail 131 is connected to the connecting hole 231.

[0059] Example 2

[0060] like Figure 4 and Figure 5The second embodiment of a quick anastomosis device of the utility model is shown, comprising a first support rod 3, a second support rod 4, a third support rod 5 and a rotating shaft 6, wherein the first support rod 3 and the third support rod 5 are rotatably connected via the rotating shaft 6 to form a clamp-shaped structure; the second support rod 4 is located between the first support rod 3 and the third support rod 5, and the second support rod 4 is rotatably connected to the first support rod 3 and the third support rod 5 by passing through the end of the second support rod 4 via the rotating shaft 6; a first elastic member 41 is further provided between the first support rod 3 and the second support rod 4, and the first elastic member 41 connects the first support rod 3 and the second support rod 4; a pressure nail plate 31 is provided at the end of the first support rod 3, a first groove 42 for accommodating an upper nail body 1 is provided on the second support rod 4, a through hole 421 is provided at the end of the first groove 42, and a second groove 51 for accommodating a lower nail body 2 is provided on the third support rod 5, and the upper nail body 1 can pass through the through hole 421 and be connected to the lower nail body 2 under the action of the pressure nail plate 31.

[0061] In order to facilitate the description of the positional relationship, the first support rod 3, the second support rod 4 and the third support rod 5 are divided according to the position of the rotating shaft 6. The first support rod 3, the second support rod 4 and the third support rod 5 are all on one side as the pressing nail part, and only the side where the first support rod 3 and the third support rod 5 are located is the gripping part. With this arrangement, when suturing is performed, a nail row consisting of a plurality of upper nail bodies 1 arranged in parallel can be placed in the first groove 42, and there is a certain degree of connectivity between the upper nail bodies 1 in the nail row; the lower nail body 2 is placed in the second groove 51, and the through hole 421 is aligned with the part to be sutured, the operator holds the first support rod 3 and the second support rod 4 in the gripping portion, the first support rod 3 and the third support rod 5 in the nail pressing portion rotate towards each other, and the first support rod 3 pushes the second support rod 4 to rotate toward the third support rod 5 until the first elastic member 41 is compressed to the limit, the nail pressing plate 31 enters the first groove 42, and pushes the upper nail body 1 above the through hole 421 to separate from the nail row, and the separated upper nail body 1 passes through the through hole 421 and is connected to the lower nail body 2 in the second groove 51; then the operator releases the first support rod 3 and the third support rod 5 of the gripping portion, the second support rod 4 and the third support rod 5 are separated under the action of the first elastic member 41, and the staples remain on the anastomosis object, completing the anastomosis of the skull 7 and the dura mater 8.

[0062] Example 3

[0063] like Figures 6 to 8 The second embodiment of a rapid anastomosis device of the utility model is shown. This embodiment is similar to the second embodiment, except that the internal structures of the first support rod 3, the second support rod 4 and the third support rod 5 are different.

[0064] As an embodiment of the utility model, a second elastic member 422 and an upper push plate 423 are also provided in the first groove 42. The upper push plate 423 is slidably arranged in the first groove 42. One end of the second elastic member 422 is connected to the end of the first groove 42 away from the through hole 421, and the other end is connected to the upper push plate 423.

[0065] With this arrangement, multiple upper nail bodies 1 can be placed in the first groove 42 at one time, and the second elastic member 422 pushes the upper push plate 423 to squeeze the upper nail body 1 to move toward the through hole 421. When the nail pressing plate 31 presses the upper nail body 1 located in the first position down into the through hole 421, under the action of the upper push plate 423, the upper nail body 1 behind will automatically fill the gap above the through hole 421, and the user can continuously press the first support rod 3 and the third support rod 5 to quickly complete the suturing work.

[0066] As an embodiment of the utility model, a third elastic member 511 and a lower push plate 512 are further provided in the second groove 51 . The lower push plate 512 is slidably installed in the second groove 51 . One end of the third elastic member 511 is connected to the second groove 51 , and the other end is connected to the lower push plate 512 .

[0067] Through this arrangement, multiple lower nail bodies 2 can be placed in the second groove 51 at one time, and the third elastic member 511 can push the lower nail body 2 to move below the through hole 421 through the lower push plate 512, so that the lower nail body 2 can be continuously connected to the upper nail body 1, allowing the operator to quickly complete the suturing work.

[0068] As an embodiment of the present utility model, a first limiting groove matching with the bottom of the upper nail body 1 is provided at the bottom of the first groove 42 , and a second limiting groove matching with the top of the lower nail body 2 is provided at the bottom of the second groove 51 .

[0069] Through this setting, when the upper push plate 423 pushes the upper nail body 1 and the lower push plate 512 pushes the lower nail body 2 to move, it can ensure that the upper nail body 1 and the lower nail body 2 move along the first limiting groove and the second limiting groove respectively, avoiding the upper nail body 1 and the lower nail body 2 from offsetting during the movement.

[0070] As an embodiment of the present invention, an inclined platform 513 is further provided at the end of the second groove 51 close to the through hole 421 .

[0071] With this arrangement, under the action of the lower push plate 512, the underground nail body 2 located directly below the through hole will be pushed onto the inclined platform 513, causing the second plug-in portion 22 of the lower nail body 2 to protrude from the edge of the second groove 51, thereby making it easier to connect the upper nail body 1 with the lower nail body 2, and facilitating the detachment of the lower nail body 2 from the second groove 51 after the matching is completed.

[0072] A fourth elastic member 312 is further disposed between the first support rod 3 and the third support rod 5 for returning the first support rod 3 and the third support rod 5 to their original positions.

[0073] With this arrangement, after the user completes an anastomosis operation, he loosens the first support rod 3 and the third support rod 5. Under the action of the fourth elastic member 312, the first support rod 3 and the third support rod 5 will automatically reset, thus facilitating the user's operation.

[0074] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A skull-dura mater anastomosis stapler, used for connecting a skull (7) and a dura mater (8); characterized in that: The invention comprises an upper nail body (1) and a lower nail body (2), wherein the upper nail body (1) is provided with a first skull anastomosis part (11), a first plug part (12) and a first dura mater anastomosis part (13) in sequence, and the lower nail body (2) is provided with a second skull anastomosis part (21), a second plug part (22) and a second dura mater anastomosis part (23) in sequence, wherein the first plug part (12) and the second plug part (22) are detachably connected, the first skull anastomosis part (11) and the second skull anastomosis part (21) are arranged opposite to each other, and the first dura mater anastomosis part (13) and the second dura mater anastomosis part (23) are also arranged opposite to each other; the first skull anastomosis part (11) and the second skull anastomosis part (21) are connected to the skull (7) from both sides of the skull (7) respectively, and the first dura mater anastomosis part (13) is detachably connected to the second dura mater anastomosis part (23) after passing through the dura mater (8).

2. The skull-dura mater anastomosis stapler according to claim 1, characterized in that: A plurality of anastomotic teeth (111) are provided on opposite sides of the first skull anastomotic part (11) and the second skull anastomotic part (21).

3. The skull-dura mater anastomosis stapler according to claim 2, characterized in that: The exteriors of the first skull anastomosis part (11) and the second skull anastomosis part (21) are both arc-shaped structures.

4. The skull-dura mater anastomosis stapler according to claim 1, characterized in that: The first plug-in portion (12) is a tube structure, the second plug-in portion (22) is a column structure, and the second plug-in portion (22) can be inserted into the first plug-in portion (12) for plugging.

5. The skull-dura mater anastomosis stapler according to claim 4, characterized in that: A clamping protrusion (121) is provided in the first plug-in portion (12), and a clamping groove (221) corresponding to the clamping protrusion (121) is provided on the second plug-in portion (22).

6. The skull-dura mater anastomosis stapler according to any one of claims 1 to 5, characterized in that: The first dura mater anastomosis portion (13) is provided with a dura mater nail (131), and the second dura mater anastomosis portion (23) is provided with a connection hole (231) corresponding to the dura mater nail (131), and the dura mater nail (131) can be inserted into the connection hole (231) and fixedly connected to the connection hole (231).

7. A rapid anastomosis device, using the skull-dura mater anastomosis staple according to any one of claims 1 to 6, characterized in that: The invention comprises a first support rod (3), a second support rod (4), a third support rod (5) and a rotating shaft (6); the first support rod (3) and the third support rod (5) are rotatably connected via the rotating shaft (6) to form a clamp-shaped structure; the second support rod (4) is located between the first support rod (3) and the third support rod (5); the rotating shaft (6) passes through the end of the second support rod (4) so ​​that the second support rod (4) is rotatably connected with the first support rod (3) and the third support rod (5); a first elastic member ( 41), the first elastic member (41) connects the first support rod (3) and the second support rod (4); a nail pressing plate (31) is provided at the end of the first support rod (3), a first groove (42) for accommodating an upper nail body (1) is provided on the second support rod (4), a through hole (421) is provided at the end of the first groove (42), and a second groove (51) for accommodating a lower nail body (2) is provided on the third support rod (5), and the upper nail body (1) can pass through the through hole (421) and be connected to the lower nail body (2) under the action of the nail pressing plate (31).

8. The rapid anastomosis device according to claim 7, characterized in that: A second elastic member (422) and an upper push plate (423) are also provided in the first groove (42), and the upper push plate (423) is slidably arranged in the first groove (42), and one end of the second elastic member (422) is connected to the end of the first groove (42) away from the through hole (421), and the other end is connected to the upper push plate (423); a third elastic member (511) and a lower push plate (512) are also provided in the second groove (51), and the lower push plate (512) is slidably arranged in the second groove (51), and one end of the third elastic member (511) is connected to the second groove (51), and the other end is connected to the lower push plate (512).

9. The rapid anastomosis device according to claim 8, characterized in that: An inclined platform (513) is also provided at the end of the second groove (51) close to the through hole (421).

10. The rapid anastomosis device according to any one of claims 7 to 9, characterized in that: A fourth elastic member (312) is also provided between the first support rod (3) and the third support rod (5) for resetting the first support rod (3) and the third support rod (5).

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