A bendable angle-adjustable surgical hook needle structure
By designing a flexible and adjustable surgical hook structure, and utilizing the combination of a nickel-titanium alloy part and a traction line, the problem of the inability to adjust the angle of traditional hooks is solved, enabling adaptive adjustment of the hook tip and reducing the complexity of surgical procedures and the risk of tissue puncture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN XIAOLAN PEOPLES HOSPITAL
- Filing Date
- 2025-05-08
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional surgical hooks are straight rods with no adjustable angle, which increases the complexity of surgical procedures, especially in laparoscopic high ligation of the processus vaginalis, where they are prone to puncturing tissue.
A flexible, adjustable surgical hook structure was designed. Through the cooperation of the nickel-titanium alloy part and the traction line, the angle of the hook tip can be adjusted by using the threaded connection of the adjusting rotating part and the grip handle.
It enables adaptive angle adjustment of the hook tip, reduces the complexity of surgical procedures, avoids tissue punctures, and improves ease of use.
Smart Images
Figure CN224572783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surgical medical device technology, and in particular to a surgical hook structure with an adjustable angle. Background Technology
[0002] During laparoscopic high ligation of the processus vaginalis, the surgeon manipulates a hook needle and guides the ligation suture through the internal inguinal ring. Traditional hook needles are straight and cannot be bent to adjust the angle. This requires the surgeon to repeatedly lift the tissue with laparoscopic forceps as the hook needle passes through the internal inguinal ring to avoid puncturing the tissue. This obviously increases the complexity of the surgeon's operation.
[0003] In addition, the Chinese utility model patent with patent number ZL201920774934.9 and patent name: Hook needle for surgical treatment of pediatric inguinal hernia specifically discloses the following technical solution: A hook needle for surgical treatment of pediatric inguinal hernia, including a hook needle body, the hook needle body including a needle body part and a hand-held part, the curved part of the needle body part being close to the free end of the needle body part; the needle body part is inserted into the hand-held part, and the needle body part and the hand-held part are connected by interference fit or threaded connection.
[0004] It should be noted that, for the hook needles used for surgical treatment of pediatric inguinal hernias, although the free end of the needle body is a curved structure, it still cannot be angled when used for ligation, that is, it cannot be adjusted to adapt to the angle of the patient's tissue passage. Utility Model Content
[0005] The purpose of this invention is to provide a flexible and adjustable surgical hook structure to address the shortcomings of existing technologies. This flexible and adjustable surgical hook structure has a novel design, strong adjustability, and can be adaptively adjusted according to the patient's tissue channels.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution.
[0007] A flexible and adjustable surgical hook structure includes a hook rod body, a grip handle fastened to the rear end of the hook rod body, and a needle eye for passing through the front end of the hook rod body. The crochet hook body includes a front end rod, a nickel-titanium alloy part, and a rear end rod connected sequentially from front to back. The eye of the hook is opened at the front end of the front end rod, and the grip handle is securely installed at the rear end of the rear end rod. The rear end of the front rod has a binding hole, the front end of the rear rod has a front threading hole, and the rear end of the rear rod has a rear threading hole on the front side of the handle. An adjusting rotating part is rotatably mounted at the rear end of the grip handle, and the adjusting rotating part has a wire binding groove; The flexible and adjustable surgical hook structure also includes a pull line. One end of the pull line passes through the binding hole of the front rod and is fixed to the front rod. The other end of the pull line is fixed in the binding groove of the adjusting rotating part. The pull line passes through the front threading hole and the rear threading hole of the rear rod in sequence.
[0008] The handle has a rear-facing internal threaded hole at its rear end. The adjusting rotating component includes a screw part and a wire-binding part located at the rear end of the screw part. The screw part and the wire-binding part are an integral structure. The screw part is screwed into the internal threaded hole of the handle. The wire-binding groove is located in the wire-binding part of the adjusting rotating component.
[0009] The grip handle has an outwardly opening and an axially penetrating handle wire-holding groove, and the wire-binding part of the adjusting rotating component has a rotating component wire-holding groove that communicates with the wire-binding groove. The pull wire passes through the handle wire-holding groove and the rotating component wire-holding groove.
[0010] The rear end of the front rod has a rearward-opening front connection hole, and the front end of the rear rod has a forward-opening rear connection hole. The front end of the nickel-titanium alloy part is inserted into and welded to the front end connection hole of the front end rod, and the rear end of the nickel-titanium alloy part is inserted into and welded to the rear end connection hole of the rear end rod.
[0011] The front end and the rear end are both stainless steel rods.
[0012] The grip handle and the adjusting rotating component are both made of rigid plastic.
[0013] Compared with existing technologies, this invention has the following advantages: Specifically, during use, the rotating component is adjusted by rotation, which pulls the traction line. The rotating component, through the traction line, pulls the position of the binding hole on the front end of the rod. During this process, the nickel-titanium alloy part is bent by external force, causing the front end of the rod to deflect relative to the rear end of the rod and thus achieving angle adjustment. Therefore, the flexible, angle-adjustable surgical hook structure of this invention can adaptively adjust the angle according to the patient's tissue passage, possessing the advantages of novel structural design and strong adjustability. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a structural schematic diagram from another perspective of the present invention.
[0017] exist Figure 1 and Figure 2 This includes: 1-Crochet hook body; 11-Hook eye; 12-Front end; 121-Tying hole; 122-Front end connecting hole; 13-Ni-titanium alloy part; 14-Rear end; 141-Front threading hole; 142-Rear threading hole; 143-Rear end connecting hole; 2-Holding handle; 21-Internal threaded hole; 22-Handle thread-holding groove; 3-Adjusting rotating part; 31-Tying groove; 32-Screw part; 33-Tying part; 34-Rotating part thread-holding groove; 4-Pull line. Detailed Implementation
[0018] The present invention will now be described in conjunction with specific embodiments.
[0019] Example 1, as Figure 1 and Figure 2 As shown, a flexible and adjustable surgical hook structure includes a hook rod 1 and a grip handle 2 that is fastened to the rear end of the hook rod 1. The front end of the hook rod 1 has a needle eye 11 for the ligation suture to pass through.
[0020] Among them, such as Figure 1 and Figure 2 As shown, the crochet hook body 1 includes a front end rod 12, a nickel-titanium alloy part 13, and a rear end rod 14 connected sequentially from front to back. The needle eye 11 is opened at the front end of the front end rod 12, and the grip handle 2 is fixedly installed at the rear end of the rear end rod 14.
[0021] Furthermore, such as Figure 1 and Figure 2 As shown, the rear end of the front rod 12 is provided with a binding hole 121, the front end of the rear rod 14 is provided with a front threading hole 141, and the rear end of the rear rod 14 is provided with a rear threading hole 142 on the front side of the grip handle 2.
[0022] Furthermore, such as Figure 1 and Figure 2 As shown, an adjusting rotating part 3 is rotatably installed at the rear end of the grip handle 2, and the adjusting rotating part 3 has a binding groove 31.
[0023] In addition, the flexible and adjustable surgical hook structure also includes a pull line 4. One end of the pull line 4 passes through the binding hole 121 of the front end rod 12 and is fixed to the front end rod 12. The other end of the pull line 4 is fixed in the binding groove 31 of the adjusting rotating member 3. The pull line 4 passes through the front threading hole 141 and the rear threading hole 142 of the rear end rod 14 in sequence.
[0024] It should be explained that the front rod 12 and the rear rod 14 can be stainless steel rods, and the handle 2 and the adjusting rotating part 3 can be hard plastic parts.
[0025] During the use of the flexible and adjustable surgical hook structure in this embodiment, the surgeon can adaptively adjust the angle of the front end of the hook rod 1 according to the patient's tissue passage. The specific adjustment operation is as follows: the adjusting rotating part 3 is rotated so that the adjusting rotating part 3 rotates relative to the grip handle 2. Since the rear end of the traction line 4 is fixed in the binding groove 31 of the adjusting rotating part 3, when the adjusting rotating part 3 is rotated, the adjusting rotating part 3 pulls the traction line 4, and the adjusting rotating part 3 pulls the binding hole 121 of the front rod 12 of the hook rod 1 through the traction line 4. During this process, the nickel-titanium alloy part 13 is bent by external force, thereby causing the front rod 12 to deflect relative to the rear rod 14 and achieve angle adjustment.
[0026] It should be noted that in this embodiment, the traction wire 4 passes through the front suture hole 141 and the rear suture hole 142 of the rear end rod 14 in sequence. This structural design can effectively make the traction wire 4 close to the rear end rod 14, so as to avoid the traction wire 4 deviating from the rear end rod 14 when adjusting the angle and causing obstruction of the surgical view, thereby improving the convenience of use.
[0027] In summary, the flexible and adjustable surgical hook structure of this embodiment has the advantages of novel structural design and strong adjustability, and can be adaptively adjusted according to the patient's tissue channel.
[0028] Example 2, as Figure 1 and Figure 2 As shown, the difference between this embodiment 2 and embodiment 1 is that: the rear end of the grip handle 2 is provided with an internally threaded hole 21 that opens to the rear; the adjusting rotating component 3 includes a screw part 32 and a binding part 33 provided at the rear end of the screw part 32; the screw part 32 and the binding part 33 are an integral structure; the screw part 32 is screwed into the internally threaded hole 21 of the grip handle 2; and the binding groove 31 is provided in the binding part 33 of the adjusting rotating component 3.
[0029] It should be explained that, since the screw part 32 of the adjusting rotating part 3 is connected to the internal threaded hole 21 of the grip handle 2 by a thread, when adjusting the angle of the front rod part 12, the adjusting rotating part 3 is rotated. At this time, the adjusting rotating part 3 will move axially backward relative to the grip handle 2, thereby causing the adjusting rotating part 3 to pull the pull line 4.
[0030] Example 3, as Figure 1 and Figure 2As shown, the difference between this embodiment 3 and embodiment 2 is that: the handle 2 has an outwardly open and axially penetrating handle wire slot 22, and the wire binding part 33 of the adjusting rotating part 3 has a rotating part wire slot 34 that communicates with the wire binding slot 31. The pull wire 4 passes through the handle wire slot 22 and the rotating part wire slot 34.
[0031] During the rotation operation to adjust the rotating component 3, the handle wire slot 22 and the rotating component wire slot 34 will pull the wire 4 to limit its movement, so as to prevent the wire 4 from rotating synchronously with the adjusting rotating component 3, thereby improving the stability of the adjusting rotating component 3 pulling the wire 4.
[0032] Example 4, as Figure 1 and Figure 2 As shown, the difference between this embodiment four and embodiment one is that the rear end of the front end rod 12 is provided with a rearward opening front end connection hole 122, and the front end of the rear end rod 14 is provided with a frontward opening rear end connection hole 143.
[0033] The front end of the nickel-titanium alloy part 13 is inserted into and welded to the front end connection hole 122 of the front end rod part 12, and the rear end of the nickel-titanium alloy part 13 is inserted into and welded to the rear end connection hole 143 of the rear end rod part 14.
[0034] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A flexible and adjustable surgical hook structure, comprising a hook rod (1) and a grip handle (2) fastened to the rear end of the hook rod (1), wherein the front end of the hook rod (1) is provided with a needle eye (11) for the ligation suture to pass through. characterized in that The crochet hook body (1) includes a front end rod (12), a nickel-titanium alloy part (13), and a rear end rod (14) connected sequentially from front to back. The eyelet (11) is opened at the front end of the front end rod (12), and the grip handle (2) is securely installed at the rear end of the rear end rod (14). The rear end of the front rod (12) is provided with a binding hole (121), the front end of the rear rod (14) is provided with a front threading hole (141), and the rear end of the rear rod (14) is provided with a rear threading hole (142) on the front side of the grip handle (2). An adjusting rotating part (3) is rotatably installed at the rear end of the grip handle (2), and the adjusting rotating part (3) has a binding groove (31). The flexible and adjustable angle surgical hook structure also includes a pull line (4). One end of the pull line (4) passes through the binding hole (121) of the front end rod (12) and is fixed to the front end rod (12). The other end of the pull line (4) is fixed in the binding groove (31) of the adjusting rotating part (3). The pull line (4) passes through the front thread hole (141) and the rear thread hole (142) of the rear end rod (14) in sequence.
2. A flexible angle-adjustable surgical hook structure according to claim 1, characterized in that: The rear end of the grip handle (2) is provided with an internal threaded hole (21) that opens to the rear. The adjusting rotating part (3) includes a screw part (32) and a binding part (33) provided at the rear end of the screw part (32). The screw part (32) and the binding part (33) are an integral structure. The screw part (32) is screwed into the internal threaded hole (21) of the grip handle (2). The binding groove (31) is provided in the binding part (33) of the adjusting rotating part (3).
3. A flexible angle-adjustable surgical hook structure according to claim 2, characterized in that: The grip handle (2) has an outward-opening and axially penetrating handle wire slot (22), and the wire binding part (33) of the adjusting rotating part (3) has a rotating part wire slot (34) that communicates with the wire binding slot (31). The pull wire (4) passes through the handle wire slot (22) and the rotating part wire slot (34).
4. The surgical hook structure with an adjustable angle according to claim 1, characterized in that: The rear end of the front end rod (12) is provided with a rearward opening front connection hole (122), and the front end of the rear end rod (14) is provided with a front opening rear connection hole (143). The front end of the nickel-titanium alloy part (13) is inserted into and welded to the front end connection hole (122) of the front end rod part (12), and the rear end of the nickel-titanium alloy part (13) is inserted into and welded to the rear end connection hole (143) of the rear end rod part (14).
5. The flexible angle-adjustable surgical hook structure according to claim 1, wherein: The front end rod (12) and the rear end rod (14) are both stainless steel rods.
6. The flexible angle-adjustable surgical hook structure according to claim 1, wherein: The grip handle (2) and the adjusting rotating part (3) are both made of hard plastic.