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CN-115363656-B - Novel surgical threading device

CN115363656BCN 115363656 BCN115363656 BCN 115363656BCN-115363656-B

Abstract

The invention provides a novel surgical threading device which solves the problems that the threading device is inconvenient to guide a plurality of groups of suture lines and the like, and comprises two threading device main bodies which are respectively connected with threading rods, the end of the wire passing rod is provided with an offset part which is bent relative to the wire passing rod, the bending directions of the offset parts of the wire passing device main body are opposite, the end of the offset part is provided with a wire clamping assembly used for clamping a plurality of groups of suture lines, and the wire passing device main body is internally provided with a linkage assembly which drives the wire clamping assembly to open and close. The invention has the advantages of convenient threading, stable structure and the like.

Inventors

  • WU YAN
  • SHEN WEILIANG
  • MO XIANAN
  • WANG CANLONG

Assignees

  • 浙江大学

Dates

Publication Date
20260508
Application Date
20220805

Claims (6)

  1. 1. The novel surgical thread passing device comprises two thread passing device bodies (1), wherein the thread passing device bodies (1) are respectively connected with thread passing rods (2), the end heads of the thread passing rods (2) are provided with offset parts (21) which are bent relative to the thread passing rods (2), the offset parts (21) of the two thread passing device bodies (1) are opposite in bending direction, the novel surgical thread passing device is characterized in that thread clamping assemblies (3) used for clamping a plurality of groups of suture threads are arranged at the end heads of the offset parts (21), linkage assemblies (4) are arranged in the thread passing device bodies (1), the thread passing rods (2) are rotatably arranged at the end heads of the thread passing device bodies (1), adjusting assemblies (7) which limit the circumferential angles of the offset parts (21) relative to the central axes of the thread passing rods (2) are arranged between the thread passing rods (2) and the thread passing device bodies (1), the detachable assemblies are connected with the thread passing device bodies (1) through detachable assemblies, the detachable assemblies comprise thread passing device bodies (1) which are arranged at the end heads of the thread passing device bodies (1), the thread passing device bodies (2) are arranged at the positions of the thread passing rods (2) and the two ends (2) are provided with locking grooves (23) which are arranged in the thread passing device bodies (23), the locking handle (25) is provided with a stirring part (26) extending to the outer side of the thread passing device main body (1) and a rotating part (27) rotatably arranged in the thread passing device main body (1), an elastic element is arranged between the rotating part (27) and the thread passing device main body (1), the rotating part (27) is provided with a reset block (28) pressed against the end of the locking block (24), a guide inclined surface (29) for driving the locking block (24) to mutually approach is arranged between the reset block (28) and the locking block (24), the adjusting assembly (7) comprises an adjusting groove (71) distributed along the circumferential outer side of the thread passing rod (2), the adjusting groove (71) is used for inserting the locking block (24), an adjusting tooth (72) meshed with the adjusting groove (71) is arranged between the locking block (24), one side of the locking block (24) opposite to a mounting opening port is provided with a guide cambered surface (73) for guiding the thread passing rod (2) to be inserted between the locking blocks (24), the thread clamping assembly (3) comprises a plurality of needle clamping bodies (31) which are arranged on the opposite axial sides of the needle clamping bodies (31) and the needle clamping bodies (31) which are arranged along the axial direction of the needle clamping bodies (31), the thread passing needle body (31) is connected with a traction rod (33) which is arranged in the thread passing rod (2) in a penetrating way and made of a ductile material, and the traction rod (33) is in transmission connection with the linkage assembly (4).
  2. 2. The novel surgical threading device according to claim 1, wherein the linkage assembly (4) comprises a linkage disc (41) rotatably mounted in the threading device main body (1), an elastic element is arranged between the linkage disc (41) and the threading device main body (1), the linkage disc (41) is connected with a linkage handle (42) extending to the outer side of the threading device main body (1), the linkage disc (41) is in meshed transmission with a linkage gear (43) rotatably mounted in the threading device main body (1), the linkage gear (43) is in meshed transmission with a linkage rack (44), a clamping assembly (5) for connecting a traction rod (33) is arranged on the linkage rack (44), and a limiting assembly (6) for adjusting the sliding range of the linkage rack (44) is arranged between the linkage rack (44) and the threading device main body (1).
  3. 3. The novel surgical threading device according to claim 2, wherein the clamping assembly (5) comprises a pair of clamping blocks (51) arranged at the end of the linkage rack (44), the clamping blocks (51) are made of elastic materials and are separated from each other under the action of elastic force, the clamping blocks (51) are slidably sleeved with a binding sleeve (52) outside to keep the clamping blocks (51) clamped and attached to each other, a clamping groove (53) is reserved between the clamping blocks (51), a clamping ball (54) used for clamping and fixing in the clamping groove (53) is arranged at the end of the traction rod (33), the binding sleeve (52) is slidably connected with the linkage rack (44) through a binding rod (55), an elastic element is arranged between the linkage rack (44) and the binding rod (55), and the binding rod (55) is provided with a binding protruding portion (56) extending to the outer side of the threading device body (1).
  4. 4. The novel surgical thread passing device according to claim 3, wherein the limiting assembly (6) comprises a first limiting boss (61) arranged on the side face of the linkage gear (43), a limiting hand wheel (62) with the center matched with the linkage gear (43) is rotatably arranged on the outer side of the thread passing device main body (1), a second limiting boss (63) is arranged on one side, opposite to the linkage gear (43), of the limiting hand wheel (62), a limiting sliding groove (64) for inserting and sliding the first limiting boss (61) and the second limiting boss (63) is formed in the side face of the thread passing device main body (1), a plurality of one-to-one limiting protruding points (65) and limiting grooves (66) are arranged between the inner side of the limiting hand wheel (62) and the thread passing device main body (1), and an elastic element for laminating and compacting the limiting hand wheel (62) and the thread passing device main body (1) is arranged inside the thread passing device main body (1).
  5. 5. The novel surgical threading device according to claim 1, wherein the threading device body (1) comprises symmetrically spliced outer shells (11), the outer shells (11) are connected through embedded splicing components, a sealing component is arranged at a joint of the outer shells (11), and the threading device body (1) is provided with a holding part (12) with a through hole and an extension part (13) connected with the threading rod (2).
  6. 6. The novel surgical threading device according to claim 5, wherein the embedded splicing assembly comprises a splicing groove (14) arranged on the inner side of the edge of the outer shell (11), a splicing buckle (15) inserted into the splicing groove (14) is arranged on the inner side of the edge of the other outer shell (11), a threaded piece is arranged between the outer shells (11), the sealing assembly comprises a sealing strip (16) arranged on the inner side of the edge of the outer shell (11), and a sealing film (17) is coated on the outer side of the threading device main body (1).

Description

Novel surgical threading device Technical Field The invention belongs to the technical field of medical instruments, and particularly relates to a novel surgical threading device. Background Surgical sutures refer to special threads used for ligature hemostasis and suture hemostasis as well as tissue suturing, either during surgery or during trauma treatment. The separation into absorbable and non-absorbable lines. After tissue incision, the repair and reconstruction are all needed to be sutured, so suturing is one of the basic technologies of operation. Various suturing methods such as intermittent suturing and continuous suturing, tension-reducing suturing for enhancing the closing force of each layer of the incision, stumps after appendectomy embedding, purse string suturing for closing the perforated intestinal tract, etc. can be applied according to the circumstances. The stitching should be performed exactly and correctly according to the layers. The superficial layers cannot be sutured alone leaving dead space to avoid intracavitary hematocele, which not only prevents healing but also can cause infection. The skin should be slightly raised after suturing, the tightness of the ligature is proper, the suture density is determined according to factors such as the position, the tension and the beautiful appearance, and the size and the quality of the operation cannot be judged only from the number of suture needles. In the operation process, the suture is generally needed to be used for threading the tissues, and the conventional threading device cannot meet the threading requirements of a plurality of groups of suture. In addition, the suture thread is separated in the threading process. In order to solve the defects existing in the prior art, long-term exploration is performed, and various solutions are proposed. For example, chinese patent literature discloses a thread passing device [202022494798.3] for a posterior cruciate ligament reconstruction surgery, which comprises an operation handle, wherein one side of the operation handle is fixed with a thread passing sleeve, the front end of the operation handle is fixed with a thread passing sleeve, the thread passing sleeve is coaxially arranged with the operation handle, a thread pushing device is inserted into the thread passing sleeve, the thread pushing device is connected with a pushing mechanism arranged in the operation handle, the thread pushing device extends out or retracts from the thread passing sleeve under the push-pull action of the pushing mechanism, and the front end of the thread pushing device extends out from the thread passing sleeve and then bends towards one side of the pushing mechanism of the thread passing sleeve. The scheme solves the problem of falling off in the suture line pulling process to a certain extent, but the scheme still has a plurality of defects, such as inconvenient realization of multi-group suture line puncture and the like. Disclosure of Invention The invention aims at providing a novel surgical threading device which is reasonable in design and convenient for multi-group suture line puncture. The novel surgical thread passing device comprises two thread passing device bodies, wherein the thread passing device bodies are respectively connected with thread passing rods, the end parts of the thread passing rods are provided with offset parts which are bent relative to the thread passing rods, the bending directions of the offset parts of the thread passing device bodies are opposite, the end parts of the offset parts are provided with thread clamping assemblies for clamping multiple groups of suture threads, and the thread passing device bodies are internally provided with linkage assemblies for driving the thread clamping assemblies to open and close. The wire clamping component is arranged in the offset part of the wire passing device main body and can clamp a plurality of groups of suture lines, and an operator can control the wire clamping component to open and close by the equipped linkage component, so that tissue threading is realized. In the novel surgical thread passing device, the thread passing rod is rotatably arranged at the end of the thread passing device body, an adjusting component for limiting the circumferential angle of the offset part relative to the central shaft of the thread passing rod is arranged between the thread passing rod and the thread passing device body, and the thread passing rod is connected with the thread passing device body through a detachable component. The wire passing rod and the wire clamping assembly thereof with proper specifications can be selected according to actual needs, thereby meeting the suture line traction requirements of different operations. In the novel surgical threading device, the detachable component comprises a dismounting hole which is arranged at the end of the threading device main body and is used for inserting a threading rod, locking grooves