WO2021249331A1 - 一种可分离连接且连接力可变的夹子装置 - Google Patents

一种可分离连接且连接力可变的夹子装置 Download PDF

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Publication number
WO2021249331A1
WO2021249331A1 PCT/CN2021/098588 CN2021098588W WO2021249331A1 WO 2021249331 A1 WO2021249331 A1 WO 2021249331A1 CN 2021098588 W CN2021098588 W CN 2021098588W WO 2021249331 A1 WO2021249331 A1 WO 2021249331A1
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WO
WIPO (PCT)
Prior art keywords
release
clamp arm
side clamp
clamping
connection
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Application number
PCT/CN2021/098588
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English (en)
French (fr)
Inventor
唐志
范茗侨
Original Assignee
南微医学科技股份有限公司
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Application filed by 南微医学科技股份有限公司 filed Critical 南微医学科技股份有限公司
Priority to JP2022566424A priority Critical patent/JP2023523831A/ja
Priority to DE112021001625.3T priority patent/DE112021001625T5/de
Priority to US17/921,817 priority patent/US20230190270A1/en
Publication of WO2021249331A1 publication Critical patent/WO2021249331A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/08—Wound clamps or clips, i.e. not or only partly penetrating the tissue ; Devices for bringing together the edges of a wound
    • A61B17/083—Clips, e.g. resilient
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122—Clamps or clips, e.g. for the umbilical cord
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/10—Surgical instruments, devices or methods, e.g. tourniquets for applying or removing wound clamps, e.g. containing only one clamp or staple; Wound clamp magazines
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
    • A61B17/12013—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot for use in minimally invasive surgery, e.g. endoscopic surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/128—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips
    • A61B17/1285—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for applying or removing clamps or clips for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets 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, e.g. tourniquets
    • A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding

Definitions

  • This application relates to the technical field of endoscopic medical devices, and in particular to a clip device that can be detachably connected and has a variable connection force.
  • the tissue clipping device is a minimally invasive surgical instrument, which is often used to stop bleeding from wounds in the patient's body, such as hemostasis in the digestive tract.
  • the tissue clipping device can be delivered to the surgical site of the patient through the endoscope clamp channel, and the clipping operation can be performed outside the body to complete the hemostatic treatment.
  • a typical tissue clipping device includes a clamping part, a conveying part, and an operating part.
  • the clamping part and the conveying part can be sent into the digestive tract of the patient through the endoscope clamp channel, so that the clamping part reaches the predetermined surgical position in the patient's body, and then the operation is performed through the operating parts, and the performed operation is then transported
  • the part is transmitted to the clamping part, so that the clamping part generates an action response, and performs hemostasis or clamping operation on the surgical wound.
  • the closing of the clamping part and the separation of the clamping part and the conveying part are realized by the drag action applied to the control line by the operating part to the proximal end.
  • the entire drag action can be divided into two force processes.
  • the first force is When the clamping part is closed, in order to allow the clamping part to clamp the tissue, a larger connection force is required between the clamping part and the conveying part to ensure that the force applied by the operator can be effectively transmitted to the clamping part ;
  • the second force is when the clamping part is closed, the clamping part needs to be separated from the conveying part.
  • the detachable connection force is also greater at this time.
  • the detachable connection undergoes deformation after reaching a certain force value, thereby separating the clamping part from the conveying part.
  • a certain force value For example, using a structure with a thick at both ends and a thin middle or a J-shaped hook, in the actual application process, when the clamping part performs a clamping action in the human body, when the handle is moved proximally with one or both hands, the slight The axial stroke cannot be sensed, and when the clamping part clamps larger or hard tissues, even if the clamping action has not been completed, the clamping part will not continue to move due to resistance.
  • the design of the clamping part has certain rigidity.
  • the clamping part needs to control the force transmitted by the wire during the process from opening to closing. It is very large, but when the distance between the clamping part and the operating part exceeds 2m, and the natural bending of the human body, the connection between the clamping part and the conveying part will bend, so that the force state of the control line has positive pressure.
  • the detachable connecting force at the distal end of the holding part is transmitted to the operating part and will be magnified several times, exceeding the force limit of the operator, and even the release force of the holding part is too large, which makes it impossible to effectively release the holding part through the operating part.
  • the clamping part is forcibly pulled off, causing bleeding damage to the patient.
  • the present application provides a clip device with a separable connection and a variable connection force to solve the problem that the clamping part and the conveying part are separated in advance when the clamping action of the traditional clamping device is not completed, causing the clamping action to fail, and to avoid The release force of the clamping part is too large, which makes it impossible to effectively release the clamping part through the operating member.
  • the present application provides a clip device with a detachable connection and variable connection force, comprising: a clamping part and a conveying part, the proximal end of the clamping part and the distal end of the conveying part are detachably connected; the clamping part includes at least two side clamping arms And a clamp base; the conveying part includes a handle, a control line and a sheath tube, the proximal end of the sheath tube is connected to the handle, and the control line is set inside the sheath tube;
  • the side clamp arm is arranged in the clamp base, and the proximal end of the side clamp arm is connected to the control line;
  • the handle drives the control line to move in the protective sleeve to move the side clamp arm relative to the clamp base to realize the opening and closing of the side clamp arm;
  • a fixed connector and a separate connector are provided on the upper part, a releaser is provided at the distal end of the control line, and the end of the side clamp arm is connected to the releaser;
  • the fixed connection piece restricts the separation action between the releaser and the end of the side clamp arm, so that the end of the side clamp arm and the releaser are in a fixed connection state;
  • the separating connecting piece is adapted to the releaser or the side clamp arm, so that the end of the side clamp arm and the releaser are in a detachable connection state.
  • connection force between the end of the side clamp arm and the release is a detachable connection force
  • connection force between the end of the side clamp arm and the release is a fixed connection force
  • the fixed connection force is greater than the detachable connection force, and the detachable connection force is greater than or equal to 5N.
  • connection between the releaser and the end of the side clamp arm is a deformable connection; when the end of the side clamp arm is at the distal end of the clamping part, the fixed connecting piece restricts the end of the side clamp arm or the releaser is deformed so that the end of the side clamp arm is connected to the The release is in a fixed connection state;
  • the control wire drives the release device or the end of the side clamp arm to disengage from the fixed connecting piece, so as to realize the separation of the end of the side clamp arm from the release device.
  • the fixed connection piece is a sliding groove structure
  • the separation connection piece is a release cavity
  • the groove width of the sliding groove is smaller than the width of the separation connection piece
  • the fixed connection piece and the separation connection piece form a stepped groove.
  • the release is provided with a first connection hole, the first connection hole is connected to the first connection shaft at the end of the side clamp arm, and the distal end of the first connection hole is provided with a first release port;
  • the first release opening is squeezed and deformed and releases the first connection shaft.
  • a guide bar is provided in the fixed connecting piece, a guide groove is provided on the release, and the guide groove is clamped to the guide bar.
  • the end of the side clamp arm is provided with a second connecting hole, the second connecting hole is connected to the second connecting shaft on the release, and the proximal side of the second connecting hole is provided with a second release port;
  • a clamping block is provided, and the clamping block is clamped in the fixed connection piece. After the clamping block moves from the fixed connection piece to the separation connection piece, the second release opening is squeezed and deformed and the second connection shaft is released.
  • the fixed connecting piece is a buckle
  • the buckle is connected to the releaser to limit the deformation of the releaser, so that the end of the side clamp arm and the releaser are in a fixed connection state
  • the proximal end of the clamping part blocks the movement of the buckle to the proximal end of the clamping part, so that the buckle is separated from the release device, so that the end of the side clamp arm and the release device are in a detachable connection state.
  • connection between the releaser and the end of the side clamp arm is clipped; when the end of the side clamp arm is at the distal end of the clamping part, the fixed connector is connected to the end of the side clamp arm, and the release is clamped to make the end of the side clamp arm It is in a fixed connection state with the release device;
  • the separation connecting piece is matched with the releaser, and the end of the side clamp arm and the releaser are in a detachable connection state.
  • the fixed connecting piece is two arc-shaped clamping walls arranged at the end of the side clamp arm, and the third release opening formed between the two arc-shaped clamping walls is a separation connecting piece;
  • the release is provided with a third Connecting shaft, the diameter of the third connecting shaft is larger than the opening size of the third release port;
  • the third connecting shaft is at the third release port, and the end of the side clamp arm is in a detachable connection state with the releaser.
  • the fixed connecting piece is a fourth connecting shaft provided at the end of the side clamp arm, an arc-shaped sliding groove is provided on the release, and the fourth releasing opening reserved for the arc-shaped sliding groove is a separating connecting piece, and the fourth connecting shaft
  • the diameter is larger than the opening size of the fourth release port; when the end of the side clamp arm is at the distal end of the clamping part, the fourth connecting shaft is clamped to the arc-shaped sliding groove, so that the end of the side clamp arm is in a fixed connection state with the release;
  • the fourth connecting shaft is at the fourth release opening, and the end of the side clamp arm is in a detachable connection state with the releaser.
  • the fixed connecting piece is a clip strip, and the end of the side clamp arm and the release are provided with a hole for clamping the clip strip;
  • the separation connecting piece includes an elastic piece and an elastic block, and the elastic piece is connected to the elastic block; the end of the side clamp arm When at the distal end of the clamping part, the clamp strip passes through and clamps the clamp hole at the end of the side clamp arm and the clamp hole on the release, so that the end of the side clamp arm and the release are in a fixed connection state;
  • the elastic block pushes the clip strip out of the hole of the releaser, and the end of the side clamp arm and the releaser are in a detachable connection state.
  • a hook is provided at the end of the side clamp arm, and a retaining wall and a fifth release port are provided at the distal end of the release; wherein the fixed connection piece is a retaining wall, and the separation connection piece is a fifth release port;
  • the clamp seat is provided with a protrusion
  • the side of the releaser is also provided with a spiral groove matching the protrusion; when the end of the side clamp arm is at the far end of the clamping part, the hook is clamped to the retaining wall, so that the end of the side clamp arm and the releaser are in a fixed position Connection Status;
  • the fifth release opening rotates to the hook, and the end of the side clamp arm and the releaser are in a detachable connection state.
  • a pin shaft is provided on the clamp base, and a movement sliding groove is arranged on the side clamping arm, and the pin shaft can slide relative to the movement sliding groove to control the opening and closing of the side clamping arm.
  • the clamping part further includes a separating claw connected to the clamping base;
  • the separating claw includes a traction part connected to the control line, and a plurality of deformable connecting claws arranged on the traction part;
  • the clamp base is provided with a plurality of holes for fixing the connecting claws and separating the connecting claws from the clamping base when the pulling force of the control wire increases to the deformation limit of the connecting claws.
  • the end of the side clamp arm Separate the end of the arm to make the end of the side clamp arm and the releaser in a fixed connection state to ensure that the side clamp arm has a greater grip; when the end of the side clamp arm is at the proximal end of the clamping part, separate the connector from the releaser or the side clamp arm Correspondingly, to ensure that the control line exerts a small drag force, the end of the side clamp arm can be separated from the release.
  • the embodiment of the present application provides a detachable connection and variable connection force clip device.
  • the fixing connector restrains the release device
  • the separation action between the end of the side clamp arm and the end of the side clamp arm makes the end of the side clamp arm and the releaser in a fixed connection state.
  • the side clamp arm can exert a greater grasping force on the clamped tissue, ensuring that the side clamp arm is in the process of grasping the tissue.
  • the side clamp arm can grasp the tissue; during the release process, the end of the side clamp arm is at the proximal end of the clamping part, and the separation connector is adapted to the release or the side clamp arm to make the side clamp.
  • the end of the arm and the releaser are in a detachable connection state to ensure that the control line exerts a small drag force to realize the separation of the end of the side clamp arm and the releaser, which is convenient for the operation of the operator.
  • FIG. 1 is a schematic diagram of the overall structure of a clip device with a detachable connection and a variable connection force provided by an embodiment of the application;
  • FIG. 2 is a schematic diagram of the structure of the pin shaft and the moving chute provided in an embodiment of the application;
  • FIG. 3 is a schematic structural diagram of an implementation manner A-1-1 provided by an embodiment of the application.
  • Figure 4 is a schematic diagram of the structure of the side clamp arm and the release in the separated state of Figure 3 of this application
  • Figure 5 is a schematic structural diagram of implementation A-1-2 provided by an embodiment of the application.
  • FIG. 6 is a schematic structural diagram of an implementation manner A-1-3 provided by an embodiment of the application.
  • FIG. 7 is a schematic structural diagram of implementation A-2 provided by an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of an implementation manner B-1 provided by an embodiment of this application.
  • FIG. 9 is a schematic diagram of another structure of implementation manner B-1 provided by an embodiment of the application.
  • FIG. 10 is a schematic structural diagram of an implementation manner B-2 provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of an implementation manner B-3 provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of an implementation manner B-4 provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a state where the clamping part and the input part are completely separated according to an embodiment of the application;
  • FIG. 14 is a schematic diagram of the matching structure of the separating claw and the connecting pipe provided by an embodiment of the application.
  • 1-clamping part 11-side clamp arm, 111-first connecting shaft, 112-second connecting hole, 113-second release port, 114-clamping block, 115-moving chute, 116-hook , 12-Clamp seat, 121-Pin, 122-Protrusion, 13-Fixed connecting piece, 131-Guide strip, 14-Separation connecting piece, 15-Separation claw, 151-Traction part, 152-Connecting claw, 2- Conveying part, 21-handle, 22-control line, 23-sheathing tube, 24-releaser, 241-first connecting hole, 242-first release port, 243-guide groove, 244-second connecting shaft, 245 -The third connecting shaft, 246-arc chute, 247-spiral groove.
  • the distal end the end where the clip is inserted into the human body
  • the distal end is mainly used to perform surgical actions on tissues in the body
  • the end outside the body is called the proximal end
  • the proximal end is mainly used for the operation of the operator.
  • the distal end of each component refers to the end close to the internal body
  • the proximal end of each component refers to the end close to the external body.
  • an embodiment of the present application provides a detachable and variable connecting force clip device, which includes a clamping portion 1 and a conveying portion 2. The proximal end of the clamping portion 1 and the conveying portion 2 The remote end can be detachably connected.
  • the clamping portion 1 includes at least two side clamping arms 11 and a clamping seat 12;
  • the conveying portion 2 includes a handle 21, a control wire 22, and a sheath tube 23, and the proximal end of the sheath tube 23 is connected to the handle 21.
  • the control wire 22 is arranged inside the sheath tube 23.
  • the side clamp arm 11 is arranged in the clamp base 12, and the proximal end of the side clamp arm 11 is connected to the control wire 22; the handle 21 drives the control wire 22 to move in the sheath 23 to make the side clamp
  • the arm 11 moves relative to the clamp base 12 to realize the opening and closing of the side clamp arm 11.
  • the handle 21 is used to perform surgical operations and is a direct control component of the surgical operator.
  • the handle 21 drives the control line 22 to move to control the side clamp arms 11 of the clamping portion 1 Open and close.
  • the proximal end of the sheath tube 23 is connected to the handle 21.
  • the sheath tube 23 adopts a soft round tube structure, such as a plastic hose.
  • a spirally extending support spring is arranged inside the sheath tube 23 to ensure that the sheath tube 23 can withstand the squeezing of the tissues of the sidewall of the digestive tract, and to prevent the compression from affecting the actions of the internal components of the sheath tube 23.
  • the length of the sheath 23 provided in the embodiment of the present application should meet the distance for the handle 21 to perform surgical operations outside the body.
  • the clamp base 12 is provided with a pin 121
  • the side clamp arm 11 is provided with a sliding groove 115.
  • the pin shaft 121 continuously passes through the movement sliding grooves 115 of the two side clamping arms 11 and can slide relative to the movement sliding groove 115 to control the opening and closing of the side clamping arms 11.
  • the pin 121 is fixedly arranged on the clamp base 12, and the moving sliding groove 115 moves relative to the clamp base 12.
  • the moving chute 115 may be L-shaped, obtuse-angled, arc-shaped, or the like.
  • the three-arm clamp taking the three-arm clamp as an example, it can include two side clamp arms 11 and a middle clamp arm. Under the action of the pin 121 and the moving slide groove 115, the side clamp arm 11 generates a clamp relative to the middle clamp arm. Hold the action to clamp the tissue. Further, as shown in FIG. 1, the side clamp arm 11 and the middle clamp arm are also provided with clamping teeth to enhance the tissue clamping ability of the side clamp arm 11 and the middle clamp arm.
  • the embodiment of the application provides a clip with a large holding force and a small release force, which can be a three-arm clip or a non-three-arm clip. As shown in Figure 1, the three-arm clip and The view of the arms clamp.
  • the clamping portion 1 is further provided with a fixed connection member 13 and a separation connection member 14, a release device 24 is provided at the distal end of the control wire 22, and the end of the side clamping arm 11 is connected to the release device 24.
  • control line 22 drives the side clamp arm 11 to clamp the thick tissue during the closing process, that is, when the end of the side clamp arm 11 is at the distal end of the clamping portion 1, the side clamp arm 11 has not been completely closed, and the clamped thick tissue will also produce greater resistance to the closing of the side clamp arm 11.
  • the control line 22 drives the side clamp arm 11 to continue to close, and the fixed connector 13
  • the restraining effect of restricts the separation action between the release 24 and the end of the side clamp arm 11, and prevents the side clamp arm 11 from being separated from the control line 22 before the side clamp arm 11 is completely closed
  • the separation action between the side clamp arm 11 and the control line 22 is realized in the physical structure of the separation action between the side clamp arm 11 and the release 24, and the realized function is to make the control line 22 and the The control relationship between the side clamp arms 11 is separated.
  • the separation between the control line 22 and the side clamp arms 11 mentioned below refers to the physical structure separating the side clamp arms 11 and the release 24.
  • the fixed connecting member 13 can restrict the release of the release 24 and the end of the side clip arm 11 by restricting the release 24 or restricting the side clip arm 11, and the restriction can be restricting the release 24 or the side clamp arm 11 deforms, it may also limit the position of the release 24 or the side clamp arm 11, so that the end of the release 24 and the side clamp arm 11 cannot reach the separated state, that is, The end of the side clamp arm 11 and the release 24 are in a fixed connection state. At this time, the release 24 and the end of the side clamp arm 11 are inseparable to ensure that the side clamp arm 11 can bear the control line. 22 is a relatively large drag force, so that the side clamp arm 11 can exert a large grasping force on the clamped tissue without the side clamp arm 11 being separated from the control wire 22.
  • the handle 21 drives the control wire 22 to move in the sheath 23 to move the side clamp arm 11 relative to the clamp base 12, and the end of the side clamp arm 11 is remotely During the movement of the end to the proximal end, the opening of the side clamping arm 11 gradually becomes smaller until the end of the side clamping arm 11 is at the proximal end of the clamping portion 1, and the side clamping arm 11 is completely closed.
  • the separation connector 14 is adapted to the release 24 or the side clamp arm 11, so that the end of the side clamp arm 11 and the release 24 are in a separable connection state.
  • the external operating end can be
  • the drawn-out length of the control line 22 determines that the side clamp arm 11 has been closed, and only a small force is applied to the side clamp arm 11 through the control line 22 to realize the side clamp arm The end of 11 is separated from the release 24.
  • the position of the separation connecting piece 14 corresponds to the position of the release 24 or the side clamp arm 11, or it may be that the separation connecting piece 14 cooperates with the position of the side clamp arm 11.
  • the releaser 24 moves so that the releaser 24 and the side clamp arm 11 are in a separated state.
  • the separation connecting member 14 causes the releaser 24 or the side clamp arm 11 to disengage The limitation of the fixed connecting member 13.
  • the connection force between the end of the side clamp arm 11 and the release 24 is a detachable connection
  • the connection force between the end of the side clamp arm 11 and the release 24 is a fixed connection force
  • the fixed connection force is greater than the The detachable connection force is greater than or equal to 5N.
  • the size of the detachable connection force can be adaptively changed according to the use of the clip device, for example, by changing the rigidity of the release 24 to adjust the size of the detachable connection force.
  • Method for testing the fixed connection force move the handle 21 so that the end of the side clamp arm 11 is at the distal end of the clamping portion 1. At this time, the side clamp arm 11 is in an open state, and the fixed connector 13 restricts the release 24 and the side clamp The separation action between the ends of the arms 11 makes the end of the side clamp arm 11 and the release 24 in a fixed connection state; the clamp base 12 is fixed on the upper clamping end of the tensile machine, and then the side clamp arm is opened A clamping object is placed in the clamping area 11 so that the opened side clamping arm 11 cannot be closed, so as to ensure that the end of the side clamping arm 11 and the release 24 are in a fixed connection state.
  • the detachable connection force test method move the handle 21 so that the end of the side clamp arm 11 is at the proximal end of the clamping portion 1. At this time, the side clamp arm 11 is in the closed state, and the connector 14 is separated from the release 24 or the The side clamp arm 11 is adapted to make the end of the side clamp arm 11 and the release 24 in a detachable connection state. Fix the clamping base 12 on the upper clamping end of the tensile machine, and the side clamping arm 11 is in the closed state at this time.
  • connection between the release 24 and the end of the side clamp arm 11 is deformable Connection; the end of the side clamp arm 11 or the release of the release is restricted by the fixed connecting member 13 to ensure that the end of the side clamp arm 11 forms a fixed connection with the release 24; the control line 22 drives the The release 24 or the end of the side clamp arm 11 is separated from the fixed connecting member 13, and the end of the side clamp arm 11 or the release 24 is deformed, so that the end of the side clamp arm 11 is separated from the release 24 .
  • the fixed connecting member 13 can be set as a sliding groove structure, the separating connecting piece 14 is set as a release cavity, and the groove width of the sliding groove is ensured to be smaller than the width of the separating connecting piece 14, so that the fixed connection The piece 13 and the separating connecting piece 14 form a stepped groove.
  • the release 24 is provided with The first connecting hole 241 is connected to the first connecting shaft 111 at the end of the side clamp arm 11, and a first release port 242 is provided on the distal side of the first connecting hole 241.
  • the release 24 is clamped in the fixed connection member 13, and after the release 24 moves from the inside of the fixed connection member 13 to the inside of the separation connection member 14, the first release opening 242 is squeezed Deform and release the first connecting shaft 111.
  • one side of the first connecting hole 241 is not closed, and the first release opening 242 is opened, so that the side of the first connecting hole 241 can be deformed.
  • the side of the connecting hole 241 is clamped in the fixed connecting member 13, and the first connecting hole 241 is connected to the first connecting shaft 111. As shown in FIG. 4,
  • the fixed connecting member 13 restricts the first connecting shaft 111 from escaping from the first connecting hole 241 to avoid the
  • the side clamp arm 11 is separated from the control wire 22 in advance, and when the end of the side clamp arm 11 is at the proximal end of the clamping portion 1, the release 24 is separated from the restriction of the fixed connecting member 13 and enters the separation Inside the connecting member 14, at this time, the side wall of the first connecting hole 241 can be deformed, so that the first connecting shaft 111 slides out of the first release opening 242, and the side clamp arm 11 is realized. Separation from the control line 22.
  • the fixed connection member 13 has a better guiding effect to limit the movement of the release device 24, as shown in FIG. 5, in the implementation mode A-1-2, the fixed connection member 13 A guide strip 131 is provided in the release device 24, and a guide groove 243 is provided on the release 24.
  • the guide groove 243 is clamped to the guide strip 131, and the guide groove 243 is clamped through the guide strip 131 to ensure the release The sliding of the device 24 is more stable.
  • the end of the side clamp arm 11 is provided with a second The connecting hole 112 is connected to the second connecting shaft 244 on the release 24, and a second releasing port 113 is provided on the proximal side of the second connecting hole 112.
  • the side clamp arm 11 is also provided with a clamping block 114, the clamping block 114 is clamped in the fixed connecting piece 13, and the clamping block 114 moves from the fixed connecting piece 13 to the fixed connecting piece 13. After separating the connecting member 14, the second release opening 113 is squeezed and deformed and releases the second connecting shaft 244.
  • the fixed connecting member 13 restrains the release device 24 from being separated from the end of the side clamp arm 11, as shown in FIG. 7, in the implementation mode A-2, the fixed connecting member 13 is a buckle ,
  • the separation connector 14 is a clamping block, the clamping block is arranged at the proximal end of the clamping portion 1, and the position of the clamping block is adapted to the separation position of the releaser 24, that is, the releaser 24 During the movement from the distal end to the proximal end of the clamping portion 1, after passing through the blocking block, it reaches the separation position of the release 24 and the side clamping arm 11.
  • the release 24 is clamped by the buckle and follows the movement of the release 24 to limit the deformation of the release 24, thereby making The end of the side clamp arm 11 forms a fixed connection with the release 24.
  • the blocking block forms a blocking effect on the buckle, so that the buckle is separated from the release 24, and the drag force is continued to be applied on the control line 22 After that, the release device 24 is pulled off and deformed, so that the end of the side clamp arm 11 is separated from the release device 24.
  • connection mode of the release 24 and the end of the side clamp arm 11 is a card
  • the fixed connector 13 is connected to the end of the side clamp arm 11, and the release 24 is clamped so that the side clamp arm
  • the end of the side clamp arm 11 is in a fixed connection state with the release 24; when the end of the side clamp arm 11 is at the proximal end of the clamping portion 1, the separation connecting piece 14 cooperates with the release 24, and the side clamp arm
  • the end of 11 and the release 24 are in a detachable connection state.
  • the The fixed connecting member 13 is two arc-shaped clamping walls arranged at the end of the side clamping arm 11, and the third release opening formed between the two arc-shaped clamping walls is the separation connecting member 14; on the release 24 A third connecting shaft 245 is provided, and the diameter of the third connecting shaft 245 is larger than the opening size of the third release port.
  • the third connecting shaft 245 moves in the arc-shaped clamping wall area on one side, and the end of the side clamp arm 11 is It forms a fixed connection with the release 24.
  • the third connecting shaft 245 moves to the third release opening between the two arc-shaped clamping walls, and continues to apply drag on the control line 22 After the pulling force, the third connecting shaft 245 is extruded from the third release port, so as to realize the separation of the end of the side clamp arm 11 and the releaser 24. It should be noted that in order to ensure that the third connecting shaft 245 can be smoothly extruded from the fourth release port without causing the third connecting shaft 245 to naturally fall off from the third release port.
  • the diameter of the third connecting shaft 245 is set to be slightly larger than the third release port. The opening size of the mouth.
  • FIGS. 8 and 9 two deformation structures are provided in FIGS. 8 and 9.
  • the arc-shaped retaining wall is provided on a side surface of the end of the side clamp arm 11.
  • the arc-shaped clamping wall is provided in the hollow structure at the end of the side clamp arm 11.
  • the fixed connecting member 13 is a fourth connecting shaft provided at the end of the side clamp arm 11, and the release 24 is provided with an arc sliding Slot 246, the fourth release opening reserved by the arc-shaped sliding groove 246 is the separation connector 14, the diameter of the fourth connecting shaft is larger than the opening size of the fourth release opening; the end of the side clamp arm 11 is at the At the distal end of the clamping portion 1, the fourth connecting shaft moves along the arc-shaped sliding groove 246 to form a fixed connection between the end of the side clamp arm 11 and the release 24 through a clamping action.
  • the fourth connecting shaft moves to the fourth release port, and the end of the side clamp arm 11 is detachable from the release 24 Connection Status.
  • the fourth connecting shaft is extruded from the fourth release port, thereby realizing the separation of the end of the side clamp arm 11 from the release 24.
  • the diameter of the fourth connecting shaft is set slightly larger than the diameter of the fourth release port. Opening size of the fourth release port
  • the fixed connecting member 13 is a clip strip, and the end of the side clamp arm 11 and the release 24 are provided with a clip for clamping the clip strip.
  • the card hole; the separation connecting member 14 includes an elastic member 141 and an elastic block 142, the elastic member 141 is connected to the elastic block 142, specifically, the elastic member 141 can be a spring.
  • the clip strip passes through the hole on the end of the side clamp arm 11 and the hole on the release 24 in sequence, and the clamping action , So that the end of the side clamp arm 11 and the release 24 form a fixed connection.
  • the end of the side clamp arm 11 is provided with a hook 116, and the distal end of the release 24 is provided with a retaining wall and a fifth release port; wherein, the The fixed connecting piece 13 is a retaining wall, and the separating connecting piece 14 is a fifth release port; the clamp base 12 is provided with a protrusion 122, and the side of the release 24 is also provided with a spiral that cooperates with the protrusion 122. Slot 247; when the end of the side clamp arm 11 is at the distal end of the clamping portion 1, the hook 116 is clamped to the retaining wall, so that the end of the side clamp arm 11 and the release 24 are in a fixed connection state .
  • the fifth release opening rotates to the hook 116, and the end of the side clamp arm 11 is in a detachable connection state with the release 24 .
  • the hook 116 is clamped to the retaining wall, and the end of the side clamp arm 11 is fixedly connected to the release 24.
  • the hook 116 is clamped to the retaining wall here means that the hook body at the tail of the hook 116 is clamped to the retaining wall, and the hook 116 is adapted to the fifth release port, which means The hook body at the tail of the hook 116 can be released from the fifth release port.
  • the spiral groove 247 contacts and clamps the protrusion 122, and is pressed by the protrusion 122, and the release 24 rotates
  • the control wire 22 continues to apply a drag force, and the hook 116 is released from the fifth release port, thereby realizing the end of the side clamp arm 11 and The release of the release 24.
  • the clamping portion 1 further includes a connection with the clamp The separation pawl 15 of the seat 12; the separation pawl 15 includes a traction portion 151 connected to the control line 22, and a plurality of deformable connecting pawls 152 arranged on the traction portion 151; the clamp seat 12 is provided with A plurality of holes are used for fixing the connecting claw 152 and separating the connecting claw 152 from the clamp base 12 when the pulling force of the control wire 22 increases to the deformation limit of the connecting claw 152.
  • the control wire 22 is provided with a connecting tube 221, and the control wire 22 penetrates the connecting tube 221; the connecting tube 221 contacts the pulling part 151 to pull the separating claw 15.
  • the separation pawl 15 has a plurality of connecting pawls 152 in the circumferential direction.
  • the connecting pawls 152 can be combined with the holes on the clamp base 12 and the sheath tube 23, and any part of the traction part 151 is simultaneously connected to the control wire 22 When connected, the connecting claw 152 is deformed under the pulling force of the control wire 22 to separate from the clamp base 12 and the sheath tube 23, so as to realize the effective separation of the clamp base 12 and the sheath tube 23.

Abstract

一种可分离连接且连接力可变的夹子装置，包括夹持部（1）和输送部（2）；夹持部（1）包括至少两个侧夹臂（11）以及夹座（12）；侧夹臂（11）设置在夹座（12）中，侧夹臂（11）近端连接控制线（22）；夹持部（1）上设置有固定连接件（13）和分离连接件（14），控制线（22）远端设置有释放器（24），侧夹臂（11）末端连接释放器（24）。在夹取过程中，使侧夹臂（11）能够对被夹组织施加较大的抓力；在释放过程中，保证控制线（22）施加较小的拖拽力，实现侧夹臂（11）末端与释放器（24）的分离。

Description

一种可分离连接且连接力可变的夹子装置
本申请要求在2020年6月12日提交中国专利局、申请号为202010534802.6、发明名称为“一种大抓力小释放力的夹子”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及内镜医疗器械技术领域，尤其涉及一种可分离连接且连接力可变的夹子装置。
背景技术
组织夹闭装置是一种微创手术器械，常用于患者体内创面止血，例如消化道止血等。组织夹闭装置可通过内窥镜钳道送入患者体内的手术位置，并在体外实施夹闭操作，完成止血治疗。
典型的组织夹闭装置包括夹持部、输送部以及操作部件。实际应用中，夹持部和输送部可通过内窥镜钳道送入患者消化道，使夹持部到达患者体内的预定手术位置，再通过操作部件实施手术动作，实施的手术动作再通过输送部传递至夹持部，使夹持部产生动作响应，对手术创面进行止血或夹闭操作。
夹持部闭合以及夹持部和输送部的分离都是通过操作部件对控制线施加向近端的拖拽动作实现，整个拖拽动作可以分为两次受力过程，第一次受力是夹持部闭合时受力，为了能让夹持部夹紧组织，在夹持部及输送部之间，需要较大的连接力，以保证手术人员施加的作用力可以有效传递到夹持部；第二次受力是当夹持部闭合后，夹持部需要与输送部分离，传统组织夹闭装置，当第一次受力较大时，此时可分离连接力也就更大。
一方面，由于这种分离方式的采用的一种固定的额定连接断裂力设计，可分离连接承受的作用力达到一定力值后，发生变形，从而使得夹持部与输送部分离。例如，采用两端粗中间细的结构或者是J形钩，在实际应用过程中，夹持部在人体内实施夹闭动作时，由于单手或双手操作手柄向近端进行移动时，微小的轴向行程无法感应，会出现夹持部夹住较大组织或者较硬组织时，即使还未完成夹闭动作，但是，夹持部也会由于阻力无法继续动作。而此时，如果操作者没有及时发现夹持部的异常，继续通过体外的操作部件对夹持部施加较大的作用力，使可分离连接部分承受较大的作用力发生变形，导致夹闭动作未完成时，夹持部与输送部提前发生分离，致使夹闭动作失败。
另一方面，为了使夹持部具备较高的夹持力，夹持部的设计具有一定的刚性，实际操作过程中，夹持部在从张开到闭合的过程中控制线传递的力需要很大，但是在分离时，由于夹持部与操作部件之间的距离超出2m，且人体自然弯曲会使夹持部与输送部连接处发生弯曲，从而控制线受力状态具有正压力，夹持部远端的可分离连接力传递到操作部件会放大几倍，超出了手术人员的受力极限，甚至出现夹持部释放力过大，导致无法通过操作部件有效释放夹持部，只有将夹持部 强行拔下，对患者造成出血损伤。
发明内容
本申请提供了一种可分离连接且连接力可变的夹子装置，以解决传统夹闭装置在夹闭动作未完成时，夹持部与输送部提前发生分离，致使夹闭动作失败，以及避免夹持部释放力过大，导致无法通过操作部件有效释放夹持部。
本申请提供一种可分离连接且连接力可变的夹子装置，包括：夹持部和输送部，夹持部近端与输送部远端可分离连接；夹持部包括至少两个侧夹臂以及夹座；输送部包括手柄、控制线以及护套管，护套管的近端连接手柄，控制线设置在护套管内部；
侧夹臂设置在夹座中，侧夹臂近端连接控制线；手柄带动控制线在护套管中运动，以使侧夹臂相对于夹座运动，实现侧夹臂开合；夹持部上设置有固定连接件和分离连接件，控制线远端设置有释放器，侧夹臂末端连接释放器；
侧夹臂末端处于夹持部远端时，固定连接件约束释放器与侧夹臂末端之间的分离动作，使侧夹臂末端与释放器处于固定连接状态；
侧夹臂末端处于夹持部近端时，分离连接件与释放器或侧夹臂相适应，使侧夹臂末端与释放器处于可分离连接状态。
可选的，所述侧夹臂末端与所述释放器处于可分离连接状态时，所述侧夹臂末端与释放器之间的连接力为可分离连接力；
所述侧夹臂末端与所述释放器处于固定连接状态时，所述侧夹臂末端与释放器之间的连接力为固定连接力；
所述固定连接力大于所述可分离连接力，所述可分离连接力大于或等于5N。
可选的，释放器与侧夹臂末端的连接方式为可变形连接；侧夹臂末端处于夹持部远端时，固定连接件限制侧夹臂末端或者释放器变形，使侧夹臂末端与释放器处于固定连接状态；
侧夹臂末端处于夹持部近端时，控制线带动释放器或侧夹臂末端脱离固定连接件，以实现侧夹臂末端与释放器的分离。
可选的，固定连接件为滑槽结构，分离连接件为释放腔，滑槽的槽宽小于分离连接件的宽度，固定连接件与分离连接件构成阶梯槽。
可选的，释放器上设置有第一连接孔，第一连接孔连接侧夹臂末端的第一连接轴，第一连接孔的远端一侧设置有第一释放口；释放器卡接在固定连接件中，在释放器从固定连接件中运动至分离连接件中后，第一释放口受挤压变形并释放第一连接轴。
可选的，固定连接件中设置有导向条，释放器上设置有导向槽，导向槽卡接导向条。
可选的，侧夹臂末端设置有第二连接孔，第二连接孔连接释放器上的第二连接轴，第二连接孔的近端一侧设置有第二释放口；侧夹臂上还设置有卡接块，卡接块卡接在固定连接件中，在卡接块从固定连接件中运动至分离连接件中后，第二释放口受挤压变形并释放第二连接轴。
可选的，固定连接件为卡扣，卡扣卡接释放器，以限制释放器变形，使侧夹臂末端与 释放器处于固定连接状态；分离连接件为卡块，卡块设置在夹持部近端，阻挡卡扣向夹持部近端运动，以使卡扣脱离释放器，使侧夹臂末端与释放器处于可分离连接状态。
可选的，释放器与侧夹臂末端的连接方式为卡接；侧夹臂末端处于夹持部远端时，固定连接件连接侧夹臂末端，且卡接释放器，使侧夹臂末端与释放器处于固定连接状态；
侧夹臂末端处于夹持部近端时，分离连接件与释放器配合，侧夹臂末端与释放器处于可分离连接状态。
可选的，固定连接件为设置在侧夹臂末端的两段圆弧状卡墙，两段圆弧状卡墙之间形成的第三释放口为分离连接件；释放器上设置有第三连接轴，第三连接轴直径大于第三释放口的开口尺寸；侧夹臂末端处于夹持部远端时，固定连接件卡接第三连接轴，使侧夹臂末端与释放器处于固定连接状态；
侧夹臂末端处于夹持部近端时，第三连接轴处于第三释放口处，侧夹臂末端与释放器处于可分离连接状态。
可选的，固定连接件为设置在侧夹臂末端的第四连接轴，释放器上设置有弧形滑槽，弧形滑槽预留的第四释放口为分离连接件，第四连接轴直径大于第四释放口的开口尺寸；侧夹臂末端处于夹持部远端时，第四连接轴卡接弧形滑槽，使侧夹臂末端与释放器处于固定连接状态；
侧夹臂末端处于夹持部近端时，第四连接轴处于第四释放口处，侧夹臂末端与释放器处于可分离连接状态。
可选的，固定连接件为卡条，侧夹臂末端与释放器上设置有用于卡接卡条的卡孔；分离连接件包括弹性件和弹块，弹性件连接弹块；侧夹臂末端处于夹持部远端时，卡条穿过并卡接侧夹臂末端的卡孔与释放器上的卡孔，使侧夹臂末端与释放器处于固定连接状态；
侧夹臂末端处于夹持部近端时，弹块将卡条顶出释放器的卡孔，侧夹臂末端与释放器处于可分离连接状态。
可选的，侧夹臂末端设置有挂钩，释放器远端设置有挡墙和第五释放口；其中，固定连接件为挡墙，分离连接件为第五释放口；
夹座上设置有凸起，释放器侧面还设置有与凸起配合的螺旋槽；侧夹臂末端处于夹持部远端时，挂钩卡接挡墙，使侧夹臂末端与释放器处于固定连接状态；
侧夹臂末端处于夹持部近端时，第五释放口旋转至挂钩处，侧夹臂末端与释放器处于可分离连接状态。
可选的，夹座上设有销轴，侧夹臂上设有运动滑槽，销轴可相对于运动滑槽滑动，以控制侧夹臂开闭。
可选的，夹持部还包括连接夹座的分离爪；分离爪包括连接控制线的牵引部，以及设置在牵引部上的多个可形变连接爪；
夹座上设有多个孔，用于固定连接爪，以及在控制线拉力增大到连接爪的形变极限时，使连接爪与夹座分离。由以上技术方案可知，本申请提供的一种可分离连接且连接力可变的夹子装置，在实际应用中，侧夹臂末端处于夹持部远端时，固定连接件约束释放器与侧夹臂末端分离，使侧夹臂末端与释放器处于固定连接状态，保证侧夹臂具备较大的抓力； 侧夹臂末端处于夹持部近端时，分离连接件与释放器或侧夹臂相适应，保证控制线施加较小的拖拽力，即可实现侧夹臂末端与释放器的分离。
由以上技术方案可知，本申请实施例提供的一种可分离连接且连接力可变的夹子装置，在夹取过程中，侧夹臂末端处于夹持部远端时，固定连接件约束释放器与侧夹臂末端之间的分离动作，使侧夹臂末端与释放器处于固定连接状态，侧夹臂能够对被夹组织施加较大的抓力，保证在夹取组织过程中，侧夹臂不会出现打崩现象，使得侧夹臂一定可以夹取到组织；在释放过程中，侧夹臂末端处于夹持部近端，分离连接件与释放器或侧夹臂相适应，使侧夹臂末端与释放器处于可分离连接状态，保证控制线施加较小的拖拽力，即可实现侧夹臂末端与释放器的分离，便于手术人员的操作。
附图说明
为了更清楚地说明本申请的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种可分离连接且连接力可变的夹子装置整体结构示意图；
图2为本申请实施例提供的销轴与运动滑槽配合的结构示意图；
图3为本申请实施例提供的实现方式A-1-1的结构示意图；
图4为本申请图3侧夹臂与释放器分离状态的结构示意图
图5为本申请实施例提供的实现方式A-1-2的结构示意图；
图6为本申请实施例提供的实现方式A-1-3的结构示意图；
图7为本申请实施例提供的实现方式A-2的结构示意图；
图8为本申请实施例提供的实现方式B-1的一种结构示意图；
图9为本申请实施例提供的实现方式B-1的另一种结构示意图；
图10为本申请实本申请实施例提供的实现方式B-2的结构示意图；
图11为本申请实本申请实施例提供的实现方式B-3的结构示意图；
图12为本申请实本申请实施例提供的实现方式B-4的结构示意图；
图13为本申请实施例提供的夹持部与输入部完全分离状态的结构示意图；
图14为本申请实施例提供的分离爪与连接管配合结构示意图。
图示说明：
其中，1-夹持部，11-侧夹臂，111-第一连接轴，112-第二连接孔，113-第二释放口，114-卡接块，115-运动滑槽，116-挂钩，12-夹座，121-销轴，122-凸起，13-固定连接件，131-导向条，14-分离连接件，15-分离爪，151-牵引部，152-连接爪，2-输送部，21-手柄，22-控制线，23-护套管，24-释放器，241-第一连接孔，242-第一释放口，243-导向槽，244-第二连接轴，245-第三连接轴，246-弧形滑槽，247-螺旋槽。
具体实施方式
需要说明的是，本申请提供的技术方案中，为了便于描述，将夹子置入人体内的一端称为远端，远端主要用于对体内组织实施手术动作；位于体外的一端称为近端，近端主要用于手术实施者进行操作。本申请除另有说明外，各部件所称的远端都是靠近体内一侧的一端，各部件所称的近端都是指靠近体外一侧的一端。
为了避免组织夹闭装置在夹闭动作未完成时，夹持部与输送部提前发生分离，致使夹闭动作失败，以及避免夹持部释放力过大，导致无法通过操作部件有效释放夹持部。如图1所示，本申请实施例提供的一种可分离连接且连接力可变的夹子装置，包括夹持部1和输送部2，所述夹持部1近端与所述输送部2远端可分离连接。
所述夹持部1包括至少两个侧夹臂11以及夹座12；所述输送部2包括手柄21、控制线22以及护套管23，所述护套管23的近端连接所述手柄21，所述控制线22设置在所述护套管23内部。所述侧夹臂11设置在所述夹座12中，所述侧夹臂11近端连接所述控制线22；所述手柄21带动控制线22在护套管23中运动，以使侧夹臂11相对于夹座12运动，实现侧夹臂11的开合。
其中，手柄21用于实施手术操作，是手术操作人员的直接操控部件，在实际应用过程中，通过所述手柄21带动控制线22运动，以控制所述夹持部1的侧夹臂11张开和闭合。
护套管23的近端连接所述手柄21，为了适应人体消化道结构，以及内镜钳道形状，护套管23采用软质圆管结构，例如塑料软管。且其内部设有螺旋延伸的支撑弹簧，保证所述护套管23能够承受消化道侧壁组织的挤压，避免挤压作用影响护套管23内部器件的动作。本申请实施例提供的护套管23的长度应满足手柄21在体外进行手术操作的距离。
为了实现所述侧夹臂11相对于所述夹座12的运动，如图2所示，所述夹座12上设有销轴121，所述侧夹臂11上设有运动滑槽115，所述销轴121连续穿过两个侧夹臂11的运动滑槽115，可相对于所述运动滑槽115滑动，以控制侧夹臂11开闭。
需要说明的是，在实际应用过程中，所述销轴121固定设置在所述夹座12上，所述运动滑槽115相对于所述夹座12运动。所述运动滑槽115为了实现夹臂的闭合，可以为L形、钝角形、圆弧形等结构。实际应用过程中，以三臂夹为例，可以包括两个侧夹臂11和一个中间夹臂，侧夹臂11在销轴121和运动滑槽115的作用下，相对于中间夹臂产生夹持动作，以夹持组织。进一步地，如图1所示，所述侧夹臂11和中间夹臂上还设有夹闭齿，以增强侧夹臂11与中间夹臂对组织的夹持能力。
需要说明的是，本申请实施例提供大抓力小释放力的夹子，可以为三臂夹，也可以是非三臂夹，如图1所示，在虚线框中展示的分别是三臂夹和双臂夹的视图。
所述夹持部1中还设置有固定连接件13和分离连接件14，所述控制线22远端设置有释放器24，所述侧夹臂11末端连接所述释放器24。
在实际应用过程中，所述控制线22带动所述侧夹臂11夹持厚组织闭合过程中，即所述侧夹臂11末端处于所述夹持部1远端时，所述侧夹臂11还未完全闭合，被夹持的厚组 织也会对侧夹臂11的闭合产生较大的阻力，此时，控制线22带动所述侧夹臂11继续闭合，由所述固定连接件13的约束作用，限制所述释放器24与所述侧夹臂11末端之间的分离动作，避免所述侧夹臂11未完全闭合前，所述侧夹臂11与所述控制线22提前分离，需要说明的是，侧夹臂11与控制线22的分离动作，在实体结构上实现的是侧夹臂11与释放器24之间的分离动作，实现的功能是使得控制线22与所述侧夹臂11之间的控制关系分离，下文中所说的控制线22与所述侧夹臂11之间的分离，均是指实体结构上使侧夹臂11与释放器24之间分离，这里所述固定连接件13可以通过约束所述释放器24或者约束所述侧夹臂11，限制所述释放器24与所述侧夹臂11末端的分离动作，约束可以是限制所述释放器24或者所述侧夹臂11变形，也可以是限制所述释放器24或者所述侧夹臂11的位置，使得所述释放器24和所述侧夹臂11末端无法达到分离状态，即，所述侧夹臂11末端与所述释放器24处于固定连接状态，此时，所述释放器24与所述侧夹臂11末端不可分离，保证所述侧夹臂11能够承受所述控制线22较大的拖拽力，从而使所述侧夹臂11能够对被夹组织施加较大的抓力，而不会出现所述侧夹臂11与所述控制线22分离的情况。
在所述侧夹臂11进一步闭合过程中，所述手柄21带动控制线22在护套管23中运动，以使侧夹臂11相对于夹座12运动，所述侧夹臂11末端从远端向近端运动过程中，侧夹臂11的开口逐渐变小，直至所述侧夹臂11末端处于所述夹持部1近端时，所述侧夹臂11完全闭合，此时，所述分离连接件14与所述释放器24或所述侧夹臂11相适应，使所述侧夹臂11末端与所述释放器24处于可分离连接状态，此时，体外操作端，可以根据所述控制线22的抽出长度，确定所述侧夹臂11已经闭合，只需要通过所述控制线22对所述侧夹臂11再施加较小的作用力，即可实现所述侧夹臂11末端与所述释放器24的分离。
需要所说明的是，这里所说的相适应，可以是分离连接件14的位置与所述释放器24或所述侧夹臂11位置相对应，也可以是，所述分离连接件14配合所述释放器24运动，使得所述释放器24与所述侧夹臂11处于分离状态的位置，还可以是，所述分离连接件14使所述释放器24或者所述侧夹臂11，脱离所述固定连接件13的限制。
由以上技术方案可知，本申请实施例提供的一种可分离连接且连接力可变的夹子装置，在夹取过程中，所述侧夹臂11末端处于所述夹持部1远端时，所述固定连接件13约束所述释放器24与所述侧夹臂11末端之间的分离动作，使所述侧夹臂11末端与所述释放器24处于固定连接状态，所述侧夹臂11能够对被夹组织施加较大的抓力，保证在夹取组织过程中，侧夹臂11不会出现打崩现象，使得侧夹臂11一定可以夹取到组织；在释放过程中，所述侧夹臂11末端处于所述夹持部1近端，所述分离连接件14与所述释放器24或所述侧夹臂11相适应，使所述侧夹臂11末端与所述释放器24处于可分离连接状态，保证所述控制线22施加较小的拖拽力，即可实现所述侧夹臂11末端与所述释放器24的分离，便于手术人员的操作。
进一步的，在本申请实施例中，所述侧夹臂11末端与所述释放器24处于可分离连接状态时，所述侧夹臂11末端与释放器24之间的连接力为可分离连接力；所述侧夹臂11末端与所述释放器24处于固定连接状态时，所述侧夹臂11末端与释放器24之间的连接力为固定连接力；所述固定连接力大于所述可分离连接力，所述可分离连接力大于或等于5N。需要说明的是，在实际应用过程中，所述可分离连接力的大小，可根据夹子装置的用 途进行适应性的变化，例如，通过改变释放器24的刚性，调整可分离连接力的大小。
在本申请实施例中，为了测试固定连接力以及可分离连接力的大小，分别采用以下方法进行测试。
固定连接力测试方法：移动手柄21，使侧夹臂11末端处于所述夹持部1远端，此时侧夹臂11处于张开状态，固定连接件13约束所述释放器24与侧夹臂11末端之间的分离动作，使所述侧夹臂11末端与所述释放器24处于固定连接状态；将夹座12固定在拉力机的上夹持端，然后在张开的侧夹臂11的夹持区域放置夹持物，使张开的侧夹臂11无法闭合，以确保侧夹臂11末端与所述释放器24处于固定连接状态。然后将释放器24固定在拉力机的下夹持端，打开拉力机，采用拉力机的拉伸模式，设置拉力机的速度为50mm/min，启动测试程序直至释放器24和夹座12分离，记录下释放器24和夹座12的最大分离力。
可分离连接力测试方法：移动手柄21，使侧夹臂11末端处于所述夹持部1近端，此时侧夹臂11处于闭合状态，分离连接件14与所述释放器24或所述侧夹臂11相适应，使所述侧夹臂11末端与所述释放器24处于可分离连接状态。将夹座12固定在拉力机的上夹持端，此时侧夹臂11处于闭合状态。然后将释放器24固定在拉力机的下夹持端，打开拉力机，采用拉力机的拉伸模式，设置拉力机的速度为50mm/min，启动测试程序直至释放器24和夹座2分离，记录下释放器24和夹座12的最大分离力。
为了实现所述侧夹臂11末端与所述释放器24的连接与分离，在本申请的一种实现方式A中，所述释放器24与所述侧夹臂11末端的连接方式为可变形连接；通过所述固定连接件13限制所述侧夹臂11末端或者所述释放器变形，保证所述侧夹臂11末端与所述释放器24形成固定连接；所述控制线22带动所述释放器24或所述侧夹臂11末端脱离所述固定连接件13，所述侧夹臂11末端或者所述释放器24发生变形，使所述侧夹臂11末端与所述释放器24分离。
具体的，为了实现所述固定连接件13约束所述释放器24与所述侧夹臂11末端分离，如图3、图4、图5和图6所示，在实现方式A-1中，可以将所述固定连接件13设置为滑槽结构，将所述分离连接件14设置为释放腔，并保证所述滑槽的槽宽小于所述分离连接件14的宽度，使所述固定连接件13与所述分离连接件14构成阶梯槽。
在具体实现过程中，可以采用多种方式实现所述释放器24与所述侧夹臂11末端的可变形连接，例如，在实现方式A-1-1中，所述释放器24上设置有第一连接孔241，所述第一连接孔241连接所述侧夹臂11末端的第一连接轴111，所述第一连接孔241的远端一侧设置有第一释放口242。
所述释放器24卡接在所述固定连接件13中，在所述释放器24从所述固定连接件13内部运动至所述分离连接件14内部后，所述第一释放口242受挤压变形并释放所述第一连接轴111。
其中，如图4所示，所述第一连接孔241的一侧未闭合，开设有所述第一释放口242，使得所述第一连接孔241的侧边可以发生变形，所述第一连接孔241的侧边卡接在所述固定连接件13中，且所述第一连接孔241连接所述第一连接轴111。如图3所示，所述侧夹臂11末端处于所述夹持部1远端时，所述固定连接件13限制所述第一连接轴111脱离所 述第一连接孔241，避免所述侧夹臂11与所述控制线22提前分离，所述侧夹臂11末端处于所述夹持部1近端时，所述释放器24脱离所述固定连接件13的限制，进入所述分离连接件14的内部，此时，所述第一连接孔241的侧壁能够发生变形，使得所述第一连接轴111从所述第一释放口242中滑出，实现所述侧夹臂11与所述控制线22的分离。
进一步的，为了保证所述固定连接件13具备更好的导向作用，以限制所述释放器24的运动，如图5所示，在实现方式A-1-2中，所述固定连接件13中设置有导向条131，所述释放器24上设置有导向槽243，所述导向槽243卡接所述导向条131，通过所述导向条131卡接所述导向槽243，保证所述释放器24的滑行更稳定。
为了实现所述释放器24与所述侧夹臂11末端的可变形连接，又例如，如图6所示，在实现方式A-1-3中，所述侧夹臂11末端设置有第二连接孔112，所述第二连接孔112连接所述释放器24上的第二连接轴244，所述第二连接孔112的近端一侧设置有第二释放口113。所述侧夹臂11上还设置有卡接块114，所述卡接块114卡接在所述固定连接件13中，在所述卡接块114从所述固定连接件13中运动至所述分离连接件14中后，所述第二释放口113受挤压变形并释放所述第二连接轴244。
在实现方式A-1-3中，所述侧夹臂11末端处于所述夹持部1远端时，所述固定连接件13通过卡接所述卡接块114，限制所述第二连接轴244脱离所述第二连接孔112，避免所述侧夹臂11与所述控制线22提前分离，在所述侧夹臂11到达分离位置时，所述卡接块114脱离所述固定连接件13的限制，进入所述分离连接件14中，此时，所述第二连接孔112的侧壁可以发生变形，使得所述第二连接轴244从所述第二释放口113中滑出，实现所述侧夹臂11与所述控制线22的分离。
具体的，为了实现所述固定连接件13约束所述释放器24与所述侧夹臂11末端分离，如图7所示，在实现方式A-2中，所述固定连接件13为卡扣，所述分离连接件14为卡块，所述卡块设置在夹持部1近端，所述卡块设置的位置与所述释放器24的分离位置想适应，即，所述释放器24从夹持部1远端向近端运动过程中，经过所述卡块后，到达所述释放器24与所述侧夹臂11的分离位置。
所述侧夹臂11末端处于所述夹持部1远端时，通过所述卡扣卡接所述释放器24，并跟随所述释放器24运动，限制所述释放器24变形，从而使得所述侧夹臂11末端与所述释放器24形成固定连接。
所述侧夹臂11末端处于所述夹持部1近端时，所述卡块对卡扣形成阻挡作用，使所述卡扣脱离所述释放器24，在控制线22继续施加拖拽力后，所述释放器24被拉脱变形，从而实现所述侧夹臂11末端与所述释放器24的分离。
为了实现所述侧夹臂11末端与所述释放器24的连接与分离，在本申请的另一种实现方式B中，所述释放器24与所述侧夹臂11末端的连接方式为卡接；所述侧夹臂11末端处于所述夹持部1远端时，所述固定连接件13连接所述侧夹臂11末端，且卡接所述释放器24，使所述侧夹臂11末端与所述释放器24处于固定连接状态；所述侧夹臂11末端处于所述夹持部1近端时，所述分离连接件14与所述释放器24配合，所述侧夹臂11末端与所述释放器24处于可分离连接状态。
在具体实现过程中，可以采用多种方式实现所述释放器24与所述侧夹臂11末端的卡接，例如，如图8和图9所示，在实现方式B-1中，所述固定连接件13为设置在所述侧夹臂11末端的两段圆弧状卡墙，两段圆弧状卡墙之间形成的第三释放口为分离连接件14；所述释放器24上设置有第三连接轴245，所述第三连接轴245直径大于所述第三释放口的开口尺寸。
所述侧夹臂11末端处于所述夹持部1远端时，所述第三连接轴245在一侧圆弧状卡墙区域内运动，通过卡接配合，使所述侧夹臂11末端与所述释放器24形成固定连接。
所述侧夹臂11末端处于所述夹持部1近端时，所述第三连接轴245运动到两段圆弧状卡墙之间的第三释放口处，在控制线22继续施加拖拽力后，所述第三连接轴245从第三释放口中挤出，从而实现所述侧夹臂11末端与所述释放器24的分离，需要说明的是，为了保证所述第三连接轴245能够顺利从第四释放口中挤出，同时又不会造成所述第三连接轴245从第三释放口中自然脱落，将所述第三连接轴245的直径设置的略大于所述第三释放口的开口尺寸。
具体的，在实现方式B-1中，图8和图9中提供了两种变形结构，在图8中，所述圆弧状卡墙是设置在所述侧夹臂11末端的一侧表面。图9中，所述圆弧状卡墙设置在所述侧夹臂11末端的镂空结构。
又例如，如图10所示，在实现方式B-2中，所述固定连接件13为设置在所述侧夹臂11末端的第四连接轴，所述释放器24上设置有弧形滑槽246，所述弧形滑槽246预留的第四释放口为分离连接件14，所述第四连接轴直径大于所述第四释放口的开口尺寸；所述侧夹臂11末端处于所述夹持部1远端时，所述第四连接轴沿着所述弧形滑槽246运动，通过卡接作用，使所述侧夹臂11末端与所述释放器24形成固定连接。
所述侧夹臂11末端处于所述夹持部1近端时，所述第四连接轴运动至所述第四释放口处，所述侧夹臂11末端与所述释放器24处于可分离连接状态。在控制线22继续施加拖拽力后，所述第四连接轴从第四释放口中挤出，从而实现所述侧夹臂11末端与所述释放器24的分离，需要说明的是，为了保证所述第四连接轴能够顺利从第四释放口中挤出，同时又不会造成所述第四连接轴从第四释放口中自然脱落，将所述第四连接轴的直径设置的略大于所述第四释放口的开口尺寸
又例如，如图11所示，在实现方式B-3中，所述固定连接件13为卡条，所述侧夹臂11末端与所述释放器24上设置有用于卡接所述卡条的卡孔；所述分离连接件14包括弹性件141和弹块142，所述弹性件141连接所述弹块142，具体的，所述弹性件141可采用弹簧。
所述侧夹臂11末端处于所述夹持部1远端时，所述卡条依次穿过所述侧夹臂11末端的卡孔与所述释放器24上的卡孔，通过卡接作用，使所述侧夹臂11末端与所述释放器24形成固定连接。
所述侧夹臂11末端处于所述夹持部1近端时，所述卡条一端运动到所述弹块142的位置，所述弹块142受到弹性件141的挤压作用，将所述卡条顶出所述释放器24的卡孔，在所述弹块142靠近所述侧夹臂11的一侧，设置有斜面，在控制线22继续施加拖拽力后， 所述释放器24上的卡孔边沿挤压斜面，使得所述弹块脱离所述释放器24的卡孔中，从而实现所述侧夹臂11末端与所述释放器24的分离。
又例如，如图12所示，在实现方式B-4中，所述侧夹臂11末端设置有挂钩116，所述释放器24远端设置有挡墙和第五释放口；其中，所述固定连接件13为挡墙，所述分离连接件14为第五释放口；所述夹座12上设置有凸起122，所述释放器24侧面还设置有与所述凸起122配合的螺旋槽247；所述侧夹臂11末端处于所述夹持部1远端时，所述挂钩116卡接所述挡墙，使所述侧夹臂11末端与所述释放器24处于固定连接状态。
所述侧夹臂11末端处于所述夹持部1近端时，所述第五释放口旋转至所述挂钩116处，所述侧夹臂11末端与所述释放器24处于可分离连接状态。所述侧夹臂11末端处于所述夹持部1远端时，所述挂钩116卡接所述挡墙，所述侧夹臂11末端与所述释放器24为固定连接。
需要说明的是，这里所说的挂钩116卡接所述挡墙，是指所述挂钩116尾部的钩体与挡墙卡接，所述挂钩116与所述第五释放口相适应，是指所述挂钩116尾部的钩体可以从所述第五释放口中释放。
所述侧夹臂11末端处于所述夹持部1近端时，所述螺旋槽247接触并卡接所述凸起122，受所述凸起122的挤压，所述释放器24进行旋转，在所述第五释放口旋转至所述挂钩116的位置后，控制线22继续施加拖拽力，所述挂钩116从所述第五释放口释放，从而实现所述侧夹臂11末端与所述释放器24的分离。
为了实现夹持部4与所述护套管23之间的可分离连接，如图13和图14所示，在本申请的部分实施例中，所述夹持部1还包括连接所述夹座12的分离爪15；所述分离爪15包括连接所述控制线22的牵引部151，以及设置在所述牵引部151上的多个可形变连接爪152；所述夹座12上设有多个孔，用于固定所述连接爪152，以及在控制线22拉力增大到连接爪152的形变极限时，使所述连接爪152与夹座12分离。
所述控制线22上设有连接管221，所述控制线22贯穿所述连接管221；所述连接管221接触所述牵引部151以牵引所述分离爪15。本实施例中，分离爪15具有圆周方向的多个连接爪152，连接爪152可以与夹座12及护套管23上的孔部相结合，牵引部151的任意部位同时与控制线22相连接，在控制线22受拉力作用下连接爪152产生形变从而脱离夹座12与护套管23，以实现夹座12与护套管23的有效分离。
由以上技术方案可知，本申请实施例提供的一种可分离连接且连接力可变的夹子装置，在夹取过程中，所述侧夹臂11末端处于所述夹持部1远端时，所述固定连接件13约束所述释放器24与所述侧夹臂11末端之间的分离动作，使所述侧夹臂11末端与所述释放器24处于固定连接状态，所述侧夹臂11能够对被夹组织施加较大的抓力，保证在夹取组织过程中，侧夹臂11不会出现打崩现象，使得侧夹臂11一定可以夹取到组织；在释放过程中，所述侧夹臂11末端处于所述夹持部1近端，所述分离连接件14与所述释放器24或所述侧夹臂11相适应，使所述侧夹臂11末端与所述释放器24处于可分离连接状态，保证所述控制线22施加较小的拖拽力，即可实现所述侧夹臂11末端与所述释放器24的分离，便于手术人员的操作。
本申请提供的实施例之间的相似部分相互参见即可，以上提供的具体实施方式只是本申请总的构思下的几个示例，并不构成本申请保护范围的限定。对于本领域的技术人员而言，在不付出创造性劳动的前提下依据本申请方案所扩展出的任何其他实施方式都属于本申请的保护范围。

Claims (15)

  1. 一种可分离连接且连接力可变的夹子装置，包括：夹持部(1)和输送部(2)，所述夹持部(1)近端与所述输送部(2)远端可分离连接；
    所述夹持部(1)包括至少两个侧夹臂(11)以及夹座(12)；所述输送部(2)包括手柄(21)、控制线(22)以及护套管(23)，所述护套管(23)的近端连接所述手柄(21)，所述控制线(22)设置在所述护套管(23)内部；
    所述侧夹臂(11)设置在所述夹座(12)中，所述侧夹臂(11)近端连接所述控制线(22)；所述手柄(21)带动控制线(22)在护套管(23)中运动，以使侧夹臂(11)相对于夹座(12)运动，实现侧夹臂开合；
    其特征在于：
    夹持部(1)上设置有固定连接件(13)和分离连接件(14)，控制线(22)远端设置有释放器(24)，所述侧夹臂(11)末端连接所述释放器(24)；
    所述侧夹臂(11)末端处于所述夹持部(1)远端时，所述固定连接件(13)约束所述释放器(24)与所述侧夹臂(11)末端之间的分离动作，使所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态；
    所述侧夹臂(11)末端处于所述夹持部(1)近端时，所述分离连接件(14)与所述释放器(24)或所述侧夹臂(11)相适应，使所述侧夹臂(11)末端与所述释放器(24)处于可分离连接状态。
  2. 根据权利要求1所述的大抓力小释放力的夹子，其特征在于，所述侧夹臂(11)末端与所述释放器(24)处于可分离连接状态时，所述侧夹臂(11)末端与释放器(24)之间的连接力为可分离连接力；
    所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态时，所述侧夹臂(11)末端与释放器(24)之间的连接力为固定连接力；
    所述固定连接力大于所述可分离连接力，所述可分离连接力大于或等于5N。
  3. 根据权利要求1所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述释放器(24)与所述侧夹臂(11)末端的连接方式为可变形连接；
    所述侧夹臂(11)末端处于所述夹持部(1)远端时，所述固定连接件(13)限制所述侧夹臂(11)末端或者所述释放器(24)变形，使所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态；
    所述侧夹臂(11)末端处于所述夹持部(1)近端时，所述控制线(22)带动所述释放器(24)或所述侧夹臂(11)末端脱离所述固定连接件(13)，以实现所述侧夹臂(11)末端与所述释放器(24)的分离。
  4. 根据权利要求3所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述固定连接件(13)为滑槽结构，所述分离连接件(14)为释放腔，滑槽的槽宽小于所述分离连接件(14)的宽度，所述固定连接件(13)与所述分离连接件(14)构成阶梯槽。
  5. 根据权利要求2-4任一项所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述释放器(24)上设置有第一连接孔(241)，所述第一连接孔(241)连接所述 侧夹臂(11)末端的第一连接轴(111)，所述第一连接孔(241)的远端一侧设置有第一释放口(242)；
    所述释放器(24)卡接在所述固定连接件(13)中，在所述释放器(24)从所述固定连接件(13)中运动至所述分离连接件(14)中后，所述第一释放口(242)受挤压变形并释放所述第一连接轴(111)。
  6. 根据权利要求2-4任一项所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述固定连接件(13)中设置有导向条(131)，所述释放器(24)上设置有导向槽(243)，所述导向槽(243)卡接所述导向条(131)。
  7. 根据权利要求2-4任一项所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述侧夹臂(11)末端设置有第二连接孔(112)，所述第二连接孔(112)连接所述释放器(24)上的第二连接轴(244)，所述第二连接孔(112)的近端一侧设置有第二释放口(113)；
    所述侧夹臂(11)上还设置有卡接块(114)，所述卡接块(114)卡接在所述固定连接件(13)中，在所述卡接块(114)从所述固定连接件(13)中运动至所述分离连接件(14)中后，所述第二释放口(113)受挤压变形并释放所述第二连接轴(244)。
  8. 根据权利要求3所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述固定连接件(13)为卡扣，所述卡扣卡接所述释放器(24)，以限制所述释放器(24)变形，使所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态；
    所述分离连接件(14)为卡块，所述卡块设置在夹持部(1)近端，阻挡所述卡扣向所述夹持部(1)近端运动，以使所述卡扣脱离所述释放器(24)，使所述侧夹臂(11)末端与所述释放器(24)处于可分离连接状态。
  9. 根据权利要求1所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述释放器(24)与所述侧夹臂(11)末端的连接方式为卡接；
    所述侧夹臂(11)末端处于所述夹持部(1)远端时，所述固定连接件(13)连接所述侧夹臂(11)末端，且卡接所述释放器(24)，使所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态；
    所述侧夹臂(11)末端处于所述夹持部(1)近端时，所述分离连接件(14)与所述释放器(24)配合，所述侧夹臂(11)末端与所述释放器(24)处于可分离连接状态。
  10. 根据权利要求1或9所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述固定连接件(13)为设置在所述侧夹臂(11)末端的两段圆弧状卡墙，两段圆弧状卡墙之间形成的第三释放口为分离连接件(14)；所述释放器(24)上设置有第三连接轴(245)，所述第三连接轴(245)直径大于所述第三释放口的开口尺寸；
    所述侧夹臂(11)末端处于所述夹持部(1)远端时，所述固定连接件(13)卡接所述第三连接轴(245)，使所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态；
    所述侧夹臂(11)末端处于所述夹持部(1)近端时，所述第三连接轴(245)处于所述第三释放口处，所述侧夹臂(11)末端与所述释放器(24)处于可分离连接状态。
  11. 根据权利要求1或9所述的一种可分离连接且连接力可变的夹子装置，其特征在 于，所述固定连接件(13)为设置在所述侧夹臂(11)末端的第四连接轴，所述释放器(24)上设置有弧形滑槽(246)，所述弧形滑槽(246)预留的第四释放口为分离连接件(14)，所述第四连接轴直径大于所述第四释放口的开口尺寸；
    所述侧夹臂(11)末端处于所述夹持部(1)远端时，所述第四连接轴卡接所述弧形滑槽(246)，使所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态；
    所述侧夹臂(11)末端处于所述夹持部(1)近端时，所述第四连接轴处于所述第四释放口处，所述侧夹臂(11)末端与所述释放器(24)处于可分离连接状态。
  12. 根据权利要求1或9所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述固定连接件(13)为卡条，所述侧夹臂(11)末端与所述释放器(24)上设置有用于卡接所述卡条的卡孔；所述分离连接件(14)包括弹性件(141)和弹块(142)，所述弹性件(141)连接所述弹块(142)；
    所述侧夹臂(11)末端处于所述夹持部(1)远端时，所述卡条穿过并卡接所述侧夹臂(11)末端的卡孔与所述释放器(24)上的卡孔，使所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态；
    所述侧夹臂(11)末端处于所述夹持部(1)近端时，所述弹块(142)将所述卡条顶出所述释放器(24)的卡孔，所述侧夹臂(11)末端与所述释放器(24)处于可分离连接状态。
  13. 根据权利要求1或9所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述侧夹臂(11)末端设置有挂钩(116)，所述释放器(24)远端设置有挡墙和第五释放口；其中，所述固定连接件(13)为挡墙，所述分离连接件(14)为第五释放口；
    所述夹座(12)上设置有凸起(122)，所述释放器(24)侧面还设置有与所述凸起(122)配合的螺旋槽(247)；
    所述侧夹臂(11)末端处于所述夹持部(1)远端时，所述挂钩(116)卡接所述挡墙，使所述侧夹臂(11)末端与所述释放器(24)处于固定连接状态；
    所述侧夹臂(11)末端处于所述夹持部(1)近端时，所述第五释放口旋转至所述挂钩(116)处，所述侧夹臂(11)末端与所述释放器(24)处于可分离连接状态。
  14. 根据权利要求1所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述夹座(12)上设有销轴(121)，所述侧夹臂(11)上设有运动滑槽(115)，所述销轴(121)可相对于所述运动滑槽(115)滑动，以控制侧夹臂(11)开闭。
  15. 根据权利要求1所述的一种可分离连接且连接力可变的夹子装置，其特征在于，所述夹持部(1)还包括连接所述夹座(12)的分离爪(15)；所述分离爪(15)包括连接所述控制线(22)的牵引部(151)，以及设置在所述牵引部(151)上的多个可形变连接爪(152)；
    所述夹座(12)上设有多个孔，用于固定所述连接爪(152)，以及在控制线(22)拉力增大到连接爪(152)的形变极限时，使所述连接爪(152)与夹座(12)分离。
PCT/CN2021/098588 2020-06-12 2021-06-07 一种可分离连接且连接力可变的夹子装置 WO2021249331A1 (zh)

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