[go: up one dir, main page]

CN119548215B - Surgical scissors controlled under endoscope - Google Patents

Surgical scissors controlled under endoscope Download PDF

Info

Publication number
CN119548215B
CN119548215B CN202510124445.9A CN202510124445A CN119548215B CN 119548215 B CN119548215 B CN 119548215B CN 202510124445 A CN202510124445 A CN 202510124445A CN 119548215 B CN119548215 B CN 119548215B
Authority
CN
China
Prior art keywords
chain
rigid
handle
scissors
rigid chain
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202510124445.9A
Other languages
Chinese (zh)
Other versions
CN119548215A (en
Inventor
李兵
肖行远
柴帅帅
周袁成
许康祥
梁超启
徐玉节
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongnan Hospital of Wuhan University
Original Assignee
Zhongnan Hospital of Wuhan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongnan Hospital of Wuhan University filed Critical Zhongnan Hospital of Wuhan University
Priority to CN202510124445.9A priority Critical patent/CN119548215B/en
Publication of CN119548215A publication Critical patent/CN119548215A/en
Application granted granted Critical
Publication of CN119548215B publication Critical patent/CN119548215B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/3201—Scissors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A61B2017/00305—Constructional details of the flexible means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A61B2017/00318—Steering mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A61B2017/003—Steerable
    • A61B2017/00318—Steering mechanisms
    • A61B2017/00323—Cables or rods

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pathology (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention relates to the field of surgical scissors, in particular to surgical scissors controlled under a endoscope, which comprises a scissors head, a scissors rod and a scissors handle which are sequentially connected, wherein the scissors rod comprises a rigid chain, a rigid sleeve and a push rod, the rigid chain keeps a straight posture by penetrating through the rigid chain and tightening a pull rope through an elastic traction device, the rigid sleeve can slide along the length direction of the rigid chain, the push rod can push out a top bending device at the front end of the rigid sleeve, and the top bending device is used for pushing and bending the rigid chain. The doctor can push the movable sleeve into the target depth, then the ejector rod is operated to enable the ejector rod to extend out of the preset length at the target position, and the rigid chain is bent at the joint of the target chain link for a preset angle, so that the bending position and the bending angle of the shear bar are conveniently adjusted, and the flexibility and the accuracy of the operation are improved.

Description

Surgical scissors controlled under endoscope
Technical Field
The invention relates to the field of surgical scissors, in particular to surgical scissors controlled under a endoscope.
Background
In laparoscopic surgery, the conventional surgical scissors are difficult to flexibly enter a ureteral stenosis part to perform fine cutting operation due to a rigid structure thereof, and such limitation not only increases the difficulty of the operation, but also may lengthen the operation time and increase the risk of a patient, so that there is an urgent need for a ureteral surgical scissors capable of being flexibly operated in laparoscopic surgery to improve the accuracy and efficiency of the operation and reduce the damage to the patient.
In response to this need, flexible surgical scissors have been developed that can adjust the angle according to the surgical needs, thereby bypassing the operation of some organs to directly reach the ureteral stenosis position, can reduce invasive injury to the patient, and improve the success rate and the security of operation.
However, the conventional bendable surgical scissors are complex in structure, the maintenance and sterilization difficulties of the surgical scissors are high, particularly dirt and germs are easy to accumulate at the bending part of the scissors rod, the infection risk is increased, and the scissors rod can only be bent at one hinge, so that the flexibility is insufficient.
Disclosure of Invention
The invention aims to provide surgical scissors controlled under a cavity mirror, which are used for solving the problems that a scissors rod of the traditional surgical scissors can only be bent at one pivot and has insufficient flexibility.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
A surgical scissors controlled under a cavity mirror comprises a scissors head, a scissors rod and a scissors handle which are sequentially connected; the scissors rod comprises a flexible sleeve, wherein one end of the flexible sleeve is abutted with the scissors handle, the other end of the flexible sleeve is abutted with the scissors head, and the flexible sleeve can be freely bent; the rigid chain is arranged in the flexible sleeve and comprises a plurality of chain links which are hinged in sequence, the chain links can only bend in the same direction, one end of the rigid chain is aligned and abutted with the end part of the scissor handle, and the other end of the rigid chain is aligned and abutted with the scissor head; the device comprises a rigid chain, a shear handle, a pull rope, an elastic traction device, a push rod, a jack rod, a bending device and a bending device, wherein one end of the pull rope is fixedly connected with the chain links on the rigid chain, which are close to one end of the shear head, the other end of the pull rope penetrates through all the chain links along the length direction of the rigid chain and extends to the scissor handle, the elastic traction device is arranged in a cavity of the scissor handle and fixedly connected with the scissor handle and one end of the pull rope, which penetrates through the rigid chain, the elastic traction device always applies pulling force for pulling the chain links at two ends of the rigid chain to each other to enable the rigid chain to keep a straight posture, the rigid sleeve is arranged at the back of the rigid chain in the bending direction along the length direction of the rigid chain and is restrained between the flexible sleeve and the rigid chain, one end of the rigid sleeve can slide out of the end of the flexible sleeve along the surface of the scissor handle, the push rod can slide inside the rigid sleeve, one end of the push rod can extend out of the rigid sleeve towards the scissor handle, the other end of the push rod is connected with the bending device, the bending device can be tied in the bending device, and each bending device is arranged at the bending joint of the bending device, the top bender has an elastic force that naturally bends in the same direction as the bending direction of the rigid chain, so that the top bender can abut and push the top bender to move, thereby bending the rigid chain at the joints of the links that are abutted by the top bender.
Further, a spring is arranged on one side of the rigid sleeve, which faces the rigid chain, the spring is in a minor arc shape protruding towards the rigid chain, the spring can be clamped between the top bending parts of two adjacent chain links, and the spring can elastically deform towards the inside of the rigid sleeve when being stressed so as to avoid the top bending parts, so that the rigid sleeve does not move along the length direction of the rigid chain when no external force acts, and can move along the length direction of the rigid chain when the external force acts.
Further, the ejector rod is a round rod, an external thread is arranged on the outer peripheral surface of the ejector rod, a knob is coaxially connected to one end, close to the scissor handle, of the ejector rod, the ejector rod is rotatably and coaxially connected with the top bender, the ejector rod and the top bender can synchronously move axially, and the ejector rod is in threaded connection with the rigid sleeve.
The rigid sleeve further comprises an inner prismatic cylinder, an inner threaded cylinder and an inner threaded cylinder, wherein the inner prismatic cylinder is provided with a prismatic hole penetrating in the length direction and is used for being connected with the bending jacking device in a sliding mode and preventing the bending jacking device from rotating, the inner threaded cylinder is connected with the ejector rod in a spiral mode, so that the ejector rod moves along the axis direction of the ejector rod when rotating, the inner prismatic cylinder and the inner threaded cylinder are connected coaxially, the inner prismatic cylinder is close to the scissor head, and the inner threaded cylinder is close to the scissor handle.
Further, a plurality of force reducing grooves are formed in one side, facing away from the rigid chain, of the top bender.
The chain link further comprises a chain link plate, a chain pin shaft, a shoulder, a shaft hole, a shoulder groove and a shoulder groove, wherein the chain pin shaft is vertically and fixedly connected to one corner of the chain link plate, the shoulder is arranged at one corner of the chain link plate, the shaft hole vertically penetrates through one corner of the chain link plate and is used for being connected with the chain pin shaft of the other chain link, the shoulder groove is arranged at one corner of the chain link plate and is used for being inserted into the shoulder of the other chain link, the chain pin shaft and the shoulder groove are positioned at two corners of the same side of the chain link plate, and the shaft hole and the shoulder groove are arranged at the opposite sides of the chain link plate with the chain pin shaft and the shoulder groove.
Further, one corner of the link plate provided with the shoulder groove extends outwards to form a top bending part, and one end of the top bending device, which faces the rigid chain, is provided with a groove matched with the top bending part.
Further, the elastic traction device comprises a sliding rod which can be connected with the scissor handle in a sliding manner along the length direction of the rigid chain, one end of the sliding rod is fixedly connected with one end of the pull rope close to the scissor handle, the other end of the sliding rod is arranged at one end of the scissor handle far away from the rigid chain, one end of the spring is fixedly connected with the scissor handle, and the other end of the spring is fixedly connected with one end of the sliding rod far away from the rigid chain, so that acting force which enables the rigid chain to shrink inwards to tighten is exerted on the pull rope through the sliding rod.
Further, the scissor head comprises a fixed cutter head and a movable cutter head, the scissor handle comprises a fixed cutter handle and a movable cutter handle, the fixed cutter head and the fixed cutter handle are respectively and fixedly connected to two ends of the rigid chain, the movable cutter head is rotatably connected with the fixed cutter head, the movable cutter handle is rotatably or slidably connected with the fixed cutter handle, and the movable cutter head is connected with the movable cutter handle through an operation part, so that a user can open and close the movable cutter head through operation of the movable cutter handle.
Further, the fixed tool bit with the movable tool bit is connected through the pivot, fixed tool bit with install the elastic component between the movable tool bit, the elastic component is used for providing for fixed tool bit and movable tool bit and makes both open or make the elasticity that closes, and fixed handle of a knife and movable handle of a knife pass through slide rail connection, movable handle of a knife pass through the operating portion is applyed to the movable tool bit overcomes the reaction force of the elasticity of elastic component, makes the scissors head can be operated in order to carry out the action of opening and shutting.
Compared with the prior art, the application has the following beneficial effects:
According to the surgical scissors controlled under the endoscope, a doctor can push the movable sleeve into a proper depth according to the operation requirement, then the ejector rod is operated to enable the ejector rod to extend out of a preset length at a target position, so that the rigid chain bends at a joint of a target chain link by a preset angle, the bending position and the bending angle of the scissors rod are conveniently adjusted, the flexibility and the accuracy of the operation are improved, meanwhile, the rigid chain can keep a straight posture under the action of the elastic traction device, the stability of the scissors in the operation process is ensured, and the force transmission loss caused by bending is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a perspective view showing an internal structure of an embodiment of the present invention;
FIG. 3 is an exploded view of an embodiment of the present invention;
FIG. 4 is a top view of an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along the direction A-A of FIG. 4;
FIG. 6 is an exploded view of a rigid chain according to an embodiment of the present invention;
Reference numerals in the drawings are respectively as follows:
1-scissor head, 11-fixed scissor head, 12-movable scissor head, 13-rotating shaft, 14-elastic piece, 2-scissor bar, 21-chain link, 211-chain link, 212-chain pin, 213-shoulder, 214-shaft hole, 215-shoulder groove, 216-top bending part, 22-stay cord, 23-elastic traction device, 231-sliding bar, 232-spring, 24-rigid sleeve, 241-inner prismatic tube, 242-inner threaded tube, 25-ejector rod, 251-knob, 26-top bending device, 261-groove, 262-force reducing groove, 27-flexible sleeve, 3-scissor handle, 31-fixed knife handle, 32-movable knife handle, 33-sliding rail and 4-operation part.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The traditional bendable surgical scissors are complex in structure, the maintenance and disinfection difficulties of the surgical scissors are high, dirt and germs are easy to accumulate in the bending part of the scissors rod 2, the infection risk is increased, the scissors rod 2 can only be bent at one hinge, and the flexibility is insufficient.
In order to solve the above problems, the present embodiment provides a surgical scissors operated under a endoscope.
Fig. 1 shows a perspective view of a surgical scissors, fig. 2 shows an internal construction view of the surgical scissors, fig. 3 shows an exploded view of the surgical scissors, and the surgical scissors comprise a scissor head 1, a scissor lever 2 and a scissor handle 3 connected in sequence in combination with fig. 1, fig. 2 and fig. 3.
The scissor lever 2 comprises a flexible sleeve 27, a rigid chain, a pull rope 22, an elastic retractor 23, a rigid sleeve 24 and a push rod 25.
One end of the flexible sleeve 27 is abutted with the scissor handle 3, the other end is abutted with the scissor head 1, the flexible sleeve 27 can be freely bent, the flexible sleeve 27 is used for shielding the internal structure of the scissor rod 2, the pollution degree of the inside of the scissor rod 2 is reduced, and meanwhile, the bending action of the scissor rod 2 is prevented from damaging tissues of a patient.
The rigid chain is arranged in the flexible sleeve 27 as a main body of the scissor rod 2, the rigid chain comprises a plurality of chain links 21 which are hinged in sequence, the chain links 21 can only bend towards the same direction, one end of the rigid chain is aligned and abutted with the end part of the scissor handle 3, and the other end of the rigid chain is aligned and abutted with the scissor head 1.
The pull cord 22 penetrates all the links 21 along the length direction of the rigid chain, one end of the pull cord 22 is fixedly connected to the link 21 at one end of the rigid chain, and one end of the pull cord 22 penetrates the link 21 at the other end of the rigid chain.
The elastic pulling device 23 is provided in the scissor handle 3, and fixedly connects the scissor handle 3 and the pulling rope 22 to penetrate one end of the rigid chain, and the elastic pulling device 23 has an elastic force for pulling the pulling rope 22 out of the rigid chain, so that the pulling rope 22 always maintains a pulling force for pulling the links 21 at both ends of the rigid chain to approach each other.
The pull cord 22 and the elastic retractor 23 work together to keep the rigid chain in a straightened position, thereby ensuring the stability of the surgical scissors during operation and avoiding the loss of force transmission caused by bending.
The rigid sleeve 24 is disposed on the back of the rigid chain in the direction in which the rigid chain can bend along the length direction of the rigid chain and is constrained between the flexible sleeve 27 and the rigid chain, and one end of the rigid sleeve 24 can slide along the surface of the scissor handle 3 beyond the end of the flexible sleeve 27.
The ejector rod 25 is slidably disposed inside the rigid sleeve 24, one end of the ejector rod can extend out of the rigid sleeve 24 toward the scissor handle 3, the other end of the ejector rod is connected with a top bender 26, the top bender 26 can be converged in the rigid sleeve 24, a top bender 216 is disposed at the joint of each chain link 21, the top bender 26 has elastic force of naturally bending toward the same direction of the bending direction of the rigid chain, so that the top bender 26 can abut and push the top bender 216 to move, and the rigid chain is bent at the joint of the chain link 21 abutted by the top bender 26.
The rigid sleeve 24, the ejector rod 25 and the ejector bender 26 work together to bend the rigid chain at a target position by a target angle without affecting the stability of the rigid chain itself.
The operation method of the surgical scissors is specifically described as follows:
when bending at a certain joint is required, the rigid sleeve 24 is manually moved from the end part of the flexible sleeve 27 (above the scissor handle 3) so that the inner end of the rigid sleeve 24 is positioned at the corresponding joint, and then the ejector rod 25 is pushed inwards, so that the ejector 26 at the inner end of the ejector rod 25 is pushed out of the rigid sleeve 24, and under the action of releasing the restraint, the ejector 26 automatically generates partial bending deformation (namely, the ejector 26 is in a partial bending state in a normal state) in the bending direction of the rigid chain, and the deformation degree is such that the end part of the ejector 26 is exactly aligned with the end part of the ejector bending part 216.
After the top bender 26 is aligned with the top bending portion 216, the push rod 25 is continuously pushed inwards, the top bender 26 can be continuously bent under the action of external force, and bending force is generated on the chain link 21 through the top bender 26 and the top bending portion 216, so that bending of any target position of the rigid chain is realized.
In order to enable the ejector 26 to align with the ejector curve 216 during ejection, the end of the ejector rod 25 is moved at a distance from the end of the ejector curve 216 at the joint by at least one ejector 26, so as to reserve the action distance by which the ejector 26 is ejected.
The initial position of the rigid sleeve 24 is preferably located entirely within the flexible sleeve 27, and its rigidity characteristics also help to maintain the stability of the rigid chain in the normal state, and to be withdrawn outwardly when bending is required.
To facilitate handling of the rigid sleeve 24, an operating handle may be provided at the outer end of the rigid sleeve 24, and the operating handle may not enter the flexible sleeve 27, the operating handle not being shown.
The top bending portion 216 is preferably configured to have a shape with a certain curvature in the bending direction, so as to cooperate with the top bender 26 to better transmit the bending force.
Further, since the channel formed between the inner wall of the flexible sleeve 27 and the rigid chain through which the rigid sleeve 24 can move is flexible, which makes it difficult for the rigid sleeve 24 to move along the length direction of the scissor rod 2 all the time, in order to ensure the correctness of the moving direction of the rigid sleeve 24, the rigid sleeve 24 is designed into a shape slidingly connected with the straightened rigid chain, for example, a dovetail-shaped sliding block is arranged on the side, facing the rigid chain, of the rigid sleeve 24, and a dovetail-shaped sliding groove is arranged on the side, facing the rigid sleeve 24, of the rigid chain, and the moving direction of the rigid sleeve 24 is constrained by the rigid chain through the connection of the dovetail-shaped sliding block and the dovetail-shaped sliding groove, meanwhile, the structural strength of the rigid chain can be enhanced through the rigid sleeve 24, so that the possibility of damage of the instrument during the operation is reduced.
In addition, the scissor head 1 comprises a fixed cutter head 11 and a movable cutter head 12, the scissor handle 3 comprises a fixed cutter handle 31 and a movable cutter handle 32, the fixed cutter head 11 and the fixed cutter handle 31 are respectively and fixedly connected to two ends of a rigid chain, the movable cutter head 12 is rotatably connected to the fixed cutter head 11, the movable cutter handle 32 is rotatably or slidably connected to the fixed cutter handle 31, and the movable cutter head 12 and the movable cutter handle 32 are connected through an operation part 4, so that a user can open and close the movable cutter head 12 by operating the movable cutter handle 32.
Specifically, the fixed cutter head 11 and the movable cutter head 12 are connected through the rotating shaft 13, an elastic piece 14 is installed between the fixed cutter head 11 and the movable cutter head 12, the elastic piece 14 is preferably a torsion spring, the torsion spring is used for providing elastic force for opening or closing the fixed cutter head 11 and the movable cutter head 12, the fixed cutter handle 31 and the movable cutter handle 32 are connected through the sliding rail 33, the movable cutter handle 32 and the movable sleeve head are connected through the traction rope, the traction rope is used for applying reaction force for overcoming the elastic force of the torsion spring to the movable cutter head 12, and the scissor head 1 can execute opening and closing actions under the operation of a user.
Bending the rigid chain at any angle at any position does not affect the manipulation of the scissor head 1 by the scissor handle 3.
Further, fig. 4 shows a top view of the surgical scissors, and fig. 5 shows an internal cross-sectional view of the surgical scissors, in combination with fig. 4 and 5.
The spring 243 is arranged on one side of the rigid sleeve 24, which faces the rigid chain, and the spring 243 is in a minor arc shape protruding towards the rigid chain, the spring 243 can be clamped between the top bent parts 216 of two adjacent chain links 21, and the spring 243 can elastically deform towards the inside of the rigid sleeve 24 to avoid the top bent parts 216 when being stressed, so that the rigid sleeve 24 does not move along the length direction of the rigid chain when no external force acts, and the rigid sleeve 24 can move along the length direction of the rigid chain when the external force acts.
The width of the reed 243 is equal to the distance between two adjacent top bending parts 216, so that when the reed 243 is clamped by the top bending parts 216, the position of the rigid sleeve 24 inside the flexible sleeve 27 is fixed, and a doctor can judge whether the reed 243 is clamped by the two top bending parts 216 through the hand feeling of pushing in or pulling out the rigid sleeve 24.
Further, graduations may be provided on the outside of the rigid sleeve 24 to allow the physician to determine the bending position of the rigid chain by visually inspecting the graduations of the rigid sleeve 24 exposed outside the flexible sleeve 27.
The elastic retractor 23 may be any elastic structure capable of making the pulling rope in a straightened state, such as a spring, a rubber string, a stretcher, etc., and this embodiment is preferably an example in which the elastic retractor 23 includes a slide bar 231 and a spring 232.
The slide bar 231 is connected to the fixed handle 31, and the slide bar 231 can slide along the length direction of the rigid chain, one end of the slide bar 231 is fixedly connected to one end of the pull rope 22, which is close to the scissor handle 3, and the other end of the slide bar 231 is arranged at one end of the scissor handle 3, which is far away from the rigid chain.
One end of the spring 232 is fixedly connected to the fixed knife handle 31, the other end of the spring 232 is fixedly connected to one end of the sliding rod 231 far away from the rigid chain, and the spring 232 is used for applying elastic force to the sliding rod 231 far away from the rigid chain, so that the sliding rod 231 generates a pulling rope 22, and the pulling rope 22 further generates a force for enabling the rigid chain to shrink inwards to tighten.
The rigid sleeve 24 comprises an inner prismatic cylinder 241 and an inner threaded cylinder 242, wherein the inner prismatic cylinder 241 and the inner threaded cylinder 242 are coaxially connected, the inner prismatic cylinder 241 being close to the scissor head 1 and the inner threaded cylinder 242 being close to the scissor handle 3.
The inner cylinder 241 has a prism hole penetrating itself in the longitudinal direction, and is configured to slidably connect the ejector 26 and prevent the ejector 26 from rotating.
The ejector rod 25 is a round rod, an external thread is arranged on the outer circumferential surface of the ejector rod 25, and an internal thread cylinder 242 is connected to the ejector rod 25 in a screwed manner, so that the ejector rod 25 moves in a screwed manner along the axis direction of the ejector rod 25 when rotating.
The ejector rod 25 and the top bender 26 are rotatably connected through a revolute pair, so that the spiral movement of the ejector rod 25 can drive the top bender 26 to axially move, but the spiral of the ejector rod 25 cannot drive the top bender 26 to rotate.
The knob 251 is coaxially connected to one end of the ejector rod 25 near the scissor handle 3, and when the knob 251 is rotated by an operator, the ejector rod 25 is spirally advanced or retreated, and the ejector bender 26 axially moves accordingly, thereby completing the movement of pushing the ejector bender 216 by extending from the inside of the rigid sleeve 24, or the movement of retracting the inside of the rigid sleeve 24.
Further, FIG. 6 shows an assembled view of the rigid chain, and in connection with FIG. 6, the links 21 include link plates 211, chain pins 212, shoulders 213, shaft holes 214, shoulder grooves 215.
The chain pin 212 is vertically and fixedly connected to a corner of the link plate 211, the shoulder 213 is provided at a corner of the link plate 211, the shaft hole 214 vertically penetrates through a corner of the link plate 211, the shaft hole 214 is used for connecting the chain pin 212, the shoulder slot 215 is provided at a corner of the link plate 211, and the shoulder slot 215 is used for inserting the shoulder 213.
Wherein the chain pin 212 and the shoulder groove 215 are located at both corners of the same side of the link plate 211, the shaft hole 214 and the shoulder 213 are provided at opposite sides of the link plate 211 having the chain pin 212 and the shoulder groove 215, the chain pin 212 and the shaft hole 214 are located at both corners of the same side of the link plate 211, and the shoulder 213 and the shoulder groove 215 are located at both corners of the same side of the link plate 211.
The principle of the rigid chain is that one link plate 211 is connected to the shaft hole 214 of the other link plate 211 through the chain pin 212 so that the two link plates 211 can rotate relatively, and when the shoulder 213 of one link plate 211 is inserted into the shoulder groove 215 of the other link plate 211, the two link plates 211 cannot rotate, and at this time, the two links 21 form a rigid chain that can be bent only in one direction.
In the process that the top bender 26 drives one top bender 216 to move, the rigid chain bends at the position where the top bender 216 is located, at this time, the pull rope 22 is lengthened, so that the sliding rod 231 is pulled by the pull rope 22 to move towards the rigid chain, the spring 232 is compressed, the parts except the bending part of the rigid chain are kept in a straightened state under the influence of the elasticity of the spring 232, and the bending part of the rigid chain always generates a reaction force to the top bender 26, so that the bending angle of the rigid chain is unchanged.
Preferably, the link plates 211 are provided in two, and the two link plates 211 are symmetrical in parallel to each other, and the shoulder groove 215 and the shoulder 213 are each provided between the two link plates 211.
Preferably, in order to facilitate the top bending device 26 to bend the rigid chain, a corner of the link plate 211 provided with the shoulder groove 215 extends outwards to form the top bending portion 216, one end of the top bending device 26 facing the outer side of the rigid sleeve 24 is provided with the groove 261 matching with the top bending portion 216, and after the top bending portion 216 and the groove 261 match, the top bending device 26 is difficult to separate from the link plate 211 when the link plate 211 performs a rotational movement.
In addition, a plurality of force reducing grooves 262 are arranged on the side, facing away from the rigid chain, of the top bender 26, and the force reducing grooves 262 are used for reducing the difficulty in bending the top bender 26 towards the rigid chain, so that the top bender 26 can be more easily bent under the action of self elasticity after extending out of the rigid sleeve 24.
The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this invention will occur to those skilled in the art, and it is intended to be within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1.一种腔镜下操控的手术剪刀，其特征在于，1. A surgical scissors controlled under laparoscope, characterized in that: 包括顺序连接的剪刀头（1）、剪刀杆（2）和剪刀柄（3）；It comprises a scissor head (1), a scissor rod (2) and a scissor handle (3) which are connected in sequence; 其中，所述剪刀杆（2）包括：Wherein, the scissor lever (2) comprises: 柔性套管（27），一端与剪刀柄（3）抵接，另一端与剪刀头（1）抵接，且所述柔性套管（27）能够自由弯曲；A flexible sleeve (27), one end of which abuts against the scissors handle (3) and the other end of which abuts against the scissors head (1), and the flexible sleeve (27) can be bent freely; 刚性链，设置于所述柔性套管（27）内，所述刚性链包括若干依次铰接的链节（21），所述链节（21）能够且只能向同一方向弯曲，且所述刚性链的一端与所述剪刀柄（3）的端部对齐抵接，另一端与所述剪刀头（1）对齐抵接；a rigid chain, arranged in the flexible sleeve (27), the rigid chain comprising a plurality of chain links (21) hinged in sequence, the chain links (21) being able to and only being able to bend in the same direction, and one end of the rigid chain being aligned and abutted against an end of the scissors handle (3), and the other end being aligned and abutted against the scissors head (1); 拉绳（22），所述拉绳（22）的一端固定连接于所述刚性链上靠近剪刀头（1）一端的所述链节（21），另一端沿着所述刚性链的长度方向贯通所有的所述链节（21）并延伸至所述剪刀柄（3）；a pull rope (22), one end of the pull rope (22) being fixedly connected to the chain link (21) on the rigid chain near one end of the scissors head (1), and the other end of the pull rope (22) passing through all the chain links (21) along the length direction of the rigid chain and extending to the scissors handle (3); 弹性牵拉器（23），设置于所述剪刀柄（3）的空腔内，并且固定连接所述剪刀柄（3）和所述拉绳（22）贯通所述刚性链的一端，所述弹性牵拉器（23）始终对所述拉绳（22）施加牵引所述刚性链两端的所述链节（21）相互靠近的拉力，进而使所述刚性链保持绷直姿态；An elastic puller (23) is disposed in the cavity of the scissors handle (3) and is fixedly connected to the scissors handle (3) and one end of the pull rope (22) passing through the rigid chain. The elastic puller (23) always applies a pulling force to the pull rope (22) to pull the chain links (21) at both ends of the rigid chain closer to each other, thereby keeping the rigid chain in a straight position; 刚性套筒（24），沿所述刚性链的长度方向设置在所述刚性链能够弯曲的方向的背部，并被约束在所述柔性套管（27）与所述刚性链之间，且所述刚性套筒（24）的一端能够沿所述剪刀柄（3）表面滑动伸出柔性套管（27）的端部；A rigid sleeve (24) is arranged along the length direction of the rigid chain at the back of the rigid chain in the direction in which the rigid chain can be bent, and is constrained between the flexible sleeve (27) and the rigid chain, and one end of the rigid sleeve (24) can slide along the surface of the scissors handle (3) and extend out of the end of the flexible sleeve (27); 顶杆（25），能够滑动地设置在所述刚性套筒（24）的内部，所述顶杆（25）的一端能够向所述剪刀柄（3）的方向伸出所述刚性套筒（24），另一端连接有一顶弯器（26），所述顶弯器（26）能够被收束在所述刚性套筒（24）内，在每个所述链节（21）的关节处设置有顶弯部（216），所述顶弯器（26）具有朝所述刚性链弯曲方向的相同方向自然弯曲的弹力，使得所述顶弯器（26）能够抵接并且推动所述顶弯部（216）移动，从而使得所述刚性链在被所述顶弯器（26）抵靠的所述链节（21）的关节处弯曲。A push rod (25) is slidably arranged inside the rigid sleeve (24); one end of the push rod (25) can extend out of the rigid sleeve (24) in the direction of the scissors handle (3); the other end is connected to a push bender (26); the push bender (26) can be gathered inside the rigid sleeve (24); a push bending portion (216) is arranged at the joint of each of the chain links (21); the push bender (26) has an elastic force that naturally bends in the same direction as the bending direction of the rigid chain, so that the push bender (26) can abut against and push the push bending portion (216) to move, thereby causing the rigid chain to bend at the joint of the chain link (21) abutted by the push bender (26). 2.根据权利要求1所述的一种腔镜下操控的手术剪刀，其特征在于，2. The laparoscopically controlled surgical scissors according to claim 1, characterized in that: 所述刚性套筒（24）朝向所述刚性链的一侧设置有簧片（243），所述簧片（243）是朝向所述刚性链凸出的劣弧形状，所述簧片（243）能够被相邻的两个所述链节（21）的所述顶弯部（216）夹持在中间，所述簧片（243）受力时能够朝向所述刚性套筒（24）的内部弹性形变以避让所述顶弯部（216），从而使得无外力作用时所述刚性套筒（24）不沿着所述刚性链的长度方向移动，并且在有外力作用时所述刚性套筒（24）能够沿着所述刚性链的长度方向移动。A leaf spring (243) is provided on one side of the rigid sleeve (24) facing the rigid chain. The leaf spring (243) is in the shape of a minor arc protruding toward the rigid chain. The leaf spring (243) can be clamped in the middle by the top bends (216) of two adjacent chain links (21). When a force is applied to the leaf spring (243), the leaf spring (243) can elastically deform toward the inside of the rigid sleeve (24) to avoid the top bends (216), so that the rigid sleeve (24) does not move along the length direction of the rigid chain when no external force is applied, and can move along the length direction of the rigid chain when an external force is applied. 3.根据权利要求1所述的一种腔镜下操控的手术剪刀，其特征在于，3. The laparoscopically controlled surgical scissors according to claim 1, characterized in that: 所述顶杆（25）为圆杆，所述顶杆（25）的外周面设置有外螺纹，所述顶杆（25）靠近所述剪刀柄（3）的一端同轴连接有旋钮（251），所述顶杆（25）与所述顶弯器（26）可旋转地同轴连接，并且所述顶杆（25）与所述顶弯器（26）能够同步地轴向移动，所述顶杆（25）与所述刚性套筒（24）螺纹连接。The push rod (25) is a round rod, and an outer peripheral surface of the push rod (25) is provided with an external thread. One end of the push rod (25) close to the scissors handle (3) is coaxially connected to a knob (251). The push rod (25) and the top bender (26) are rotatably coaxially connected, and the push rod (25) and the top bender (26) can move axially synchronously. The push rod (25) is threadedly connected to the rigid sleeve (24). 4.根据权利要求3所述的一种腔镜下操控的手术剪刀，其特征在于，4. The laparoscopically controlled surgical scissors according to claim 3, characterized in that: 所述刚性套筒（24）包括：The rigid sleeve (24) comprises: 内棱柱筒（241），具备沿长度方向贯通的棱柱孔，用于滑动连接所述顶弯器（26），并阻止所述顶弯器（26）旋转；The inner prism tube (241) is provided with a prism hole penetrating along the length direction, and is used for slidably connecting the top bender (26) and preventing the top bender (26) from rotating; 内螺纹筒（242），螺旋连接于所述顶杆（25），使所述顶杆（25）旋转时沿自身轴线方向移动；其中，所述内棱柱筒（241）和所述内螺纹筒（242）同轴连接，所述内棱柱筒（241）靠近所述剪刀头（1），所述内螺纹筒（242）靠近所述剪刀柄（3）。The internal threaded cylinder (242) is spirally connected to the push rod (25), so that the push rod (25) moves along its own axis when rotating; wherein the internal prismatic cylinder (241) and the internal threaded cylinder (242) are coaxially connected, the internal prismatic cylinder (241) is close to the scissors head (1), and the internal threaded cylinder (242) is close to the scissors handle (3). 5.根据权利要求4所述的一种腔镜下操控的手术剪刀，其特征在于，5. The laparoscopically controlled surgical scissors according to claim 4, characterized in that: 所述顶弯器（26）背向所述刚性链的一侧设置有若干减力槽（262）。A plurality of force reducing grooves (262) are provided on the side of the top bender (26) facing away from the rigid chain. 6.根据权利要求1所述的一种腔镜下操控的手术剪刀，其特征在于，6. The laparoscopically controlled surgical scissors according to claim 1, characterized in that: 所述链节（21）包括：The chain link (21) comprises: 链板（211）；Chain plate (211); 链条销轴（212），垂直并固定连接于所述链板（211）的一角；A chain pin (212) is vertically and fixedly connected to a corner of the chain plate (211); 台肩（213），设置于所述链板（211）的一角；A shoulder (213) is provided at a corner of the chain plate (211); 轴孔（214），垂直贯通所述链板（211）的一角，用于连接另一个所述链节（21）的所述链条销轴（212）；An axial hole (214) vertically passes through a corner of the chain plate (211) and is used to connect the chain pin (212) of another chain link (21); 肩槽（215），设置于所述链板（211）的一角，用于插入另一个所述链节（21）的所述台肩（213）；A shoulder groove (215) is provided at a corner of the chain plate (211) and is used for inserting the shoulder (213) of another chain link (21); 其中，所述链条销轴（212）和所述肩槽（215）位于所述链板（211）的同一边的两角，所述轴孔（214）和所述台肩（213）设置于所述链板（211）具备所述链条销轴（212）和所述肩槽（215）的对边。The chain pin (212) and the shoulder groove (215) are located at two corners of the same side of the chain plate (211), and the shaft hole (214) and the shoulder (213) are arranged on opposite sides of the chain plate (211) having the chain pin (212) and the shoulder groove (215). 7.根据权利要求6所述的一种腔镜下操控的手术剪刀，其特征在于，7. The laparoscopically controlled surgical scissors according to claim 6, characterized in that: 所述链板（211）具备所述肩槽（215）的一角向外延伸形成顶弯部（216），所述顶弯器（26）朝向所述刚性链的一端具备与所述顶弯部（216）吻合的凹槽（261）。The link plate (211) has a corner of the shoulder groove (215) extending outward to form a top bend (216), and the top bend (26) has a groove (261) that matches the top bend (216) at one end facing the rigid chain. 8.根据权利要求1所述的一种腔镜下操控的手术剪刀，其特征在于，8. The laparoscopically controlled surgical scissors according to claim 1, characterized in that: 所述弹性牵拉器（23）包括：The elastic retractor (23) comprises: 滑动杆（231），可沿着所述刚性链的长度方向滑动地连接于所述剪刀柄（3），一端固定连接于所述拉绳（22）靠近所述剪刀柄（3）的一端，另一端设置在所述剪刀柄（3）远离所述刚性链的一端；A sliding rod (231) is slidably connected to the scissors handle (3) along the length direction of the rigid chain, one end of which is fixedly connected to an end of the pull rope (22) close to the scissors handle (3), and the other end of which is arranged at an end of the scissors handle (3) away from the rigid chain; 弹簧（232），一端固定连接于所述剪刀柄（3），另一端固定连接于所述滑动杆（231）远离所述刚性链的一端，从而通过所述滑动杆（231）向所述拉绳（22）施加使所述刚性链向内收缩以绷紧的作用力。A spring (232) has one end fixedly connected to the scissors handle (3) and the other end fixedly connected to an end of the sliding rod (231) away from the rigid chain, so that a force is applied to the pull rope (22) through the sliding rod (231) to cause the rigid chain to contract inwardly and be tightened. 9.根据权利要求1-8中任一项所述的一种腔镜下操控的手术剪刀，其特征在于，9. A laparoscopically controlled surgical scissors according to any one of claims 1 to 8, characterized in that: 所述剪刀头（1）包括固定刀头（11）和活动刀头（12），所述剪刀柄（3）包括固定刀柄（31）和活动刀柄（32），所述固定刀头（11）和所述固定刀柄（31）分别固定连接于所述刚性链的两端，所述活动刀头（12）可旋转地连接于所述固定刀头（11），所述活动刀柄（32）可旋转或滑动地连接于所述固定刀柄（31），所述活动刀头（12）和所述活动刀柄（32）之间通过操作部（4）连接，使用户能够通过操作所述活动刀柄（32）开合所述活动刀头（12）。The scissor head (1) comprises a fixed blade head (11) and a movable blade head (12); the scissor handle (3) comprises a fixed blade handle (31) and a movable blade handle (32); the fixed blade head (11) and the fixed blade handle (31) are respectively fixedly connected to two ends of the rigid chain; the movable blade head (12) is rotatably connected to the fixed blade head (11); the movable blade handle (32) is rotatably or slidably connected to the fixed blade handle (31); the movable blade head (12) and the movable blade handle (32) are connected via an operating portion (4), so that a user can open and close the movable blade head (12) by operating the movable blade handle (32). 10.根据权利要求9所述的一种腔镜下操控的手术剪刀，其特征在于，10. The laparoscopically controlled surgical scissors according to claim 9, characterized in that: 所述固定刀头（11）和所述活动刀头（12）通过转轴（13）连接，所述固定刀头（11）和所述活动刀头（12）之间安装有弹性件（14），弹性件（14）用于为固定刀头（11）和活动刀头（12）提供使两者开启或者使两者关闭的弹力，固定刀柄（31）和活动刀柄（32）通过滑轨（33）连接，所述活动刀柄（32）通过所述操作部（4）向活动刀头（12）施加克服所述弹性件（14）的弹力的反作用力，使剪刀头（1）能够被操作以执行开合动作。The fixed blade head (11) and the movable blade head (12) are connected via a rotating shaft (13); an elastic member (14) is installed between the fixed blade head (11) and the movable blade head (12); the elastic member (14) is used to provide an elastic force for the fixed blade head (11) and the movable blade head (12) to open or close the fixed blade head (11) and the movable blade head (12); the fixed blade handle (31) and the movable blade handle (32) are connected via a slide rail (33); the movable blade handle (32) applies a reaction force to the movable blade head (12) through the operating portion (4) to overcome the elastic force of the elastic member (14), so that the scissors head (1) can be operated to perform an opening and closing action.
CN202510124445.9A 2025-01-26 2025-01-26 Surgical scissors controlled under endoscope Active CN119548215B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202510124445.9A CN119548215B (en) 2025-01-26 2025-01-26 Surgical scissors controlled under endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202510124445.9A CN119548215B (en) 2025-01-26 2025-01-26 Surgical scissors controlled under endoscope

Publications (2)

Publication Number Publication Date
CN119548215A CN119548215A (en) 2025-03-04
CN119548215B true CN119548215B (en) 2025-04-11

Family

ID=94766979

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202510124445.9A Active CN119548215B (en) 2025-01-26 2025-01-26 Surgical scissors controlled under endoscope

Country Status (1)

Country Link
CN (1) CN119548215B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102440820A (en) * 2010-09-30 2012-05-09 上海创亿医疗器械技术有限公司 Minimally invasive surgical apparatus provided with chain joints
CN102525595A (en) * 2011-11-14 2012-07-04 杭州好克光电仪器有限公司 Bendable and visible surgical clamp

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004154164A (en) * 2002-11-01 2004-06-03 Mizuho Co Ltd Multi-degree-of-freedom type treating instrument
US8940005B2 (en) * 2011-08-08 2015-01-27 Gyrus Ent L.L.C. Locking flexible surgical instruments
CN106308937B (en) * 2016-08-31 2019-01-01 北京术锐技术有限公司 A kind of flexible operation tool system that distal end can be curved to any direction
JP2021058224A (en) * 2017-12-25 2021-04-15 ジョンソン・エンド・ジョンソン株式会社 Joint member, treatment instrument and bending control method of treatment instrument
CN112545584B (en) * 2020-12-08 2022-02-18 中国人民解放军空军军医大学 A bending device and surgical instrument
CN114209369A (en) * 2021-12-10 2022-03-22 江苏集萃微纳自动化系统与装备技术研究所有限公司 An axial dynamic system suitable for flexible bending
CN218279596U (en) * 2022-08-05 2023-01-13 湖南省华芯医疗器械有限公司 Front end module and endoscope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102440820A (en) * 2010-09-30 2012-05-09 上海创亿医疗器械技术有限公司 Minimally invasive surgical apparatus provided with chain joints
CN102525595A (en) * 2011-11-14 2012-07-04 杭州好克光电仪器有限公司 Bendable and visible surgical clamp

Also Published As

Publication number Publication date
CN119548215A (en) 2025-03-04

Similar Documents

Publication Publication Date Title
US12053178B2 (en) End effectors, surgical stapling devices, and methods of using same
US9642603B2 (en) Articulable surgical instrument
CN108784769B (en) Surgical loading unit including an articulated end effector
US6733514B2 (en) Jaw assembly for endoscopic instruments
US9033982B2 (en) De-tensioning mechanism for articulation drive cables
US9333001B2 (en) Articulable laparoscopic instrument
US20130186929A1 (en) Curved Guide Member for Articulating Instruments
US20110022052A1 (en) Method and Devices for Force-Limiting Trigger Mechanism
JP2009066400A (en) Articulating joint for surgical instruments
US11723660B2 (en) Surgical loading unit including an articulating end effector
JP5707575B2 (en) Flexible endoscopic instrument and acupuncture forceps
CN119548215B (en) Surgical scissors controlled under endoscope
CN211409251U (en) Cavity mirror right angle pliers that binding clip can buckle
CN106890013B (en) Hysteroscope surgical operation seaming and cutting device
CN217566159U (en) Endoscope cutting closer with tip capable of adjusting bending angle
CN205234555U (en) Device is cut with seam to chamber mirror surgery operation
US9566081B2 (en) Actuation grip for a microsurgical instrument, and microsurgical instrument
CN113729818A (en) Simple knotting forceps for laparoscope
CN221411262U (en) Fixed knot constructs and has its laparoscopic surgery apparatus
CN118303953B (en) Hand-held pistol-shaped multi-angle bendable surgical instrument
JP2024163108A (en) Surgical Staples
CN119257690A (en) A foldable minimally invasive surgical forceps with bistable performance
CN119655810A (en) Stapler
CN119523576A (en) A basket clamp
CN115634030A (en) Novel pedicle screw suitable for spine percutaneous internal fixation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant