CN-114305593-B - Novel multi-functional blunt shape separation plier

Abstract

The invention provides a novel multifunctional blunt separating clamp, and relates to the technical field of medical appliances. The clamp comprises a clamp rod, a clamp handle, a clamp head and a traction rod, wherein the clamp handle freely slides along the clamp rod, a locking piece used for limiting the clamp handle to a preset position of the clamp rod is arranged on the clamp rod, the traction rod is arranged at one end, far away from the clamp handle, of the clamp rod in a sliding mode, the clamp handle is connected with the traction rod in a traction mode through steel wires, the clamp head comprises two clamp flaps hinged with the end portions of the clamp rod, and the clamp flaps of each clamp are hinged with the traction rod through connecting rods, so that the clamp flaps can be opened and closed freely. According to the separating forceps, the forceps handle is slid backwards, the steel wire between the forceps handle and the traction rod is utilized to pull the traction rod backwards, so that the traction rod drives the connecting rod to enable the forceps petals on two sides to be opened with the forceps petals with larger force, hard separation of the forceps petals to tissues is achieved, rapid stripping and safety of an submucosal stripping (ESD) are guaranteed, and the separating forceps has unique advantages in the aspects of avoiding perforation and bleeding.

Inventors

• HU BING
• GAO YUAN
• HE JUN
• MOU YI
• WU CHUNCHENG

Assignees

• 四川大学华西医院

Dates

Publication Date

20260512

Application Date

20220221

Claims (3)

1. 1. The novel multifunctional blunt separating clamp is characterized by comprising a clamp rod (1), a clamp handle (2), a clamp head (3) and a traction rod (4), wherein the clamp handle (2) freely slides along the clamp rod (1), a locking piece (8) used for limiting the clamp handle (2) to a preset position of the clamp rod (1) is arranged on the clamp rod (1), the traction rod (4) is slidably arranged at one end, far away from the clamp handle (2), of the clamp rod (1), and the clamp handle (2) is connected with the traction rod (4) through steel wire traction; The clamp head (3) comprises two clamp petals (301) hinged with the end part of the clamp rod (1), each clamp petal (301) is hinged with the traction rod (4) through a connecting rod (302), so that the clamp petals (301) can be opened and closed freely, and a plurality of blunt teeth (303) are arranged on the outer edge surface of the clamp petals (301); The clamp rod (1) comprises a guide section (101) and an extension section (102), a guide through groove (5) in a shape of a Chinese character 'kou' is arranged along the length direction of the guide section (101), and the clamp handle (2) is configured to be limited to slide in the guide through groove (5); The outer wall of the guide section (101) is provided with threads, and the locking piece (8) is a locking nut which is connected with the extension section (102) in a threaded manner; the outer wall of the guide section (101) is provided with scale marks along the length direction of the extension section (102); The extension section (102) is provided with a through hole along the central axis, and the traction rod (4) and the steel wire are both arranged in the through hole; one end of the traction rod (4) far away from the steel wire is exposed out of the through hole, a transverse plate (6) used for hinging the connecting rod (302) is arranged at the end part of the traction rod (4), and a reset spring (9) is sleeved on the traction rod (4) between the transverse plate (6) and the extension section (102).
2. 2. The novel multifunctional blunt separating forceps as claimed in claim 1, wherein the forceps handle (2) is integrally formed with two finger loops (201).
3. 3. The novel multifunctional blunt separating forceps as claimed in claim 1, wherein the end of the guiding section (101) is integrally formed with a hanging ring (7).

Description

Novel multi-functional blunt shape separation plier Technical Field The invention relates to the technical field of medical instruments, in particular to a novel multifunctional blunt separating clamp. Background The endoscopic submucosal dissection (Endoscopic submucosal dissection, ESD) is a rapid operation developed under the digestive endoscopy, and because the required medical resource investment is small, the operation effect is good, so that wide endoscopists can develop, more early digestive tract cancers can be completely resected under the endoscope at one time, the pain of the open surgery and the resection of organs are avoided, and the same treatment effect of the surgical operation can be achieved by the ESD resected tumor. ESD is mainly used for treating digestive tract diseases such as (1) early cancer of digestive tract, (2) large flat polyp, (3) submucosal tumor, and (4) cardiac achalasia and slow POME operation. Although the operation is mature, the quick and safe peeling of submucosal peeling, in particular how to avoid perforation and bleeding, has a certain difficulty. It is therefore important to design a specific tool for rapid and safe tissue removal. Disclosure of Invention The invention aims to provide a novel multifunctional blunt separating clamp which can rapidly and safely strip tissues in an ESD tumor resection operation. Embodiments of the present invention are implemented as follows: The novel multifunctional blunt separating forceps comprise a forceps rod, forceps handles, forceps heads and a traction rod, wherein the forceps handles freely slide along the forceps rod, a locking piece used for limiting the forceps handles to the preset positions of the forceps rod is arranged on the forceps rod, the traction rod is arranged at one end, far away from the forceps handles, of the forceps rod in a sliding mode, and the forceps handles are connected with the traction rod through steel wire traction; the forceps head comprises two forceps petals hinged with the end part of the forceps rod, and each forceps petal and the traction rod are hinged with each other through a connecting rod, so that the forceps petals can be opened and closed freely. Compared with the prior art, the invention has at least the following advantages or beneficial effects: By using the separating forceps, the forceps handles are slid backwards, and the steel wires between the forceps handles and the traction rods are utilized to pull the traction rods backwards, so that the traction rods drive the connecting rods to enable the forceps petals on two sides to be opened with larger force, hard separation of the forceps petals to tissues is realized, rapid stripping and safety of submucosal stripping (ESD) are guaranteed, and the separating forceps have unique advantages especially in the aspect of avoiding perforation and bleeding. In some embodiments of the present invention, the clamp bar includes a guide section and an extension section, a guide channel shaped like a Chinese character 'kou' is provided along a length direction of the guide section, and the clamp handle is configured to be limited to slide in the guide channel. Based on the design, through being provided with the direction through groove at the guide section of pincers pole, with pincers handle cooperation restriction in the slip of direction through groove to play the guide effect to the removal of pincers handle, guarantee that pincers handle can do rectilinear motion along the pincers pole, and not skew. In some embodiments of the invention, the grip is integrally formed with two finger loops. Based on the design, the finger ring sleeve is arranged on the forceps valve, so that the medical staff can conveniently put fingers into the finger ring sleeve to move the forceps handle, and the operation is very convenient. In some embodiments of the invention, the outer wall of the guide section is provided with threads, and the locking member is a locking nut threadedly coupled to the extension section. Based on the design, through set up the screw thread at the outer wall of guide section to with locking piece with locking nut's form threaded connection in the guide section, thereby be convenient for in the operation in-process, through adjusting locking nut to paste with the pincers handle mutually, restriction pincers handle slides at will, thereby can maintain the operation in-process, the opening angle of pincers arm guarantees going on smoothly of operation. In some embodiments of the invention, the outer wall of the guide section is provided with scale markings along the length of the extension section. Based on the design, through setting up the scale marking at the outer wall of guide section, can know clearly whether the pincers handle slides to predetermineeing the position. In some embodiments of the invention, the end of the guide section is integrally formed with a hanging ring. Based on the design, the hanging separating clamp i