CN217338732U

CN217338732U - Soft tissue clamp with traction function

Info

Publication number: CN217338732U
Application number: CN202220081923.4U
Authority: CN
Inventors: 刘富忠; 孙德政; 鲁学恒
Original assignee: Shenyang Shangxian Medical System Co ltd
Current assignee: Shenyang Shangxian Medical System Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-09-02
Anticipated expiration: 2032-01-13

Abstract

The utility model relates to a soft tissue clamp with traction function, which comprises a traction component and an operation component which are connected; the front end of the traction assembly is symmetrically provided with two elastic metal claws which are butted, the rear end of the traction assembly is provided with a sleeve, the rear ends of the metal claws are inserted into the sleeve after being closed and are connected with a metal claw connecting piece, and the metal claw connecting piece is positioned in the sleeve and is connected with a unhooking device; the tail end of the metal claw is provided with a clamping protrusion, the rear end of the sleeve is provided with a metal claw clamping hole, and the clamping protrusion is in clamping fit with the metal claw clamping hole; a ring is connected to one of the metal claws, and the outer circumference of the ring is tangent to the metal claw through a clamping part; the operating assembly includes a flexible tube, a flexible wire, and a handle assembly. The soft tissue clamp is accurate in positioning, has the ring with the traction function, is convenient to position and pull when the instrument is used for surgical treatment under an endoscope, provides a wide visual field for treatment, increases the safety of the operation and improves the operation efficiency.

Description

Soft tissue clamp with traction function

Technical Field

The invention relates to a soft tissue clamp with a traction function, and relates to the technical field of digestive tract endoscopic treatment.

Background

The endoscope technology is a technology for visually checking and treating an endoscope sent into a cavity of a human body. It is divided into non-traumatic and traumatic. The former means that an endoscope is directly inserted into the endoscope to examine the lumen (such as digestive tract, respiratory tract, urinary tract, etc.) communicating with the outside; the latter is used to examine closed body cavities (e.g., thoracic, abdominal, joint, etc.) by introducing an endoscope through an incision. Endoscopic treatment is a minimally invasive type, and the spatial position thereof has certain limitations on surgical treatment.

Disclosure of Invention

The invention provides a soft tissue clamp with a traction function, which is accurate in positioning and is provided with a ring with a traction function, so that the soft tissue clamp can be conveniently positioned and pulled when an operation is performed through an instrument under an endoscope, a wide visual field is provided for the treatment, the operation safety is improved, and the operation efficiency is improved.

In order to solve the problems, the invention creates the following specific technical scheme: a soft tissue clamp with a traction function comprises a traction assembly and an operation assembly which are connected; the front end of the traction assembly is symmetrically provided with two elastic metal claws which are oppositely closed, the rear end of the traction assembly is provided with a sleeve, the rear end of each metal claw is inserted into the sleeve after being closed and is connected with a metal claw connecting piece, and the metal claw connecting piece is positioned in the sleeve and is connected with the unhooking device; the tail end of the metal claw is provided with a clamping protrusion, the rear end of the sleeve is provided with a metal claw clamping hole, and the clamping protrusion is in clamping fit with the metal claw clamping hole; one of the metal claws is provided with a connecting ring, and the outer circumference of the ring is tangent to the metal claw through a clamping part; the operation assembly comprises a flexible pipe, a flexible wire and a handle assembly, the handle assembly is connected with the outer end part of the flexible wire, a hook is arranged at the front end part of the flexible wire, and the hook penetrates through the unhooking device to be connected with a connecting hole in the metal claw connecting piece.

The unhooking device consists of an inner connecting buckle and a connecting column, wherein the front end part of the connecting column is provided with an inserting ring, the outer wall of the inserting ring is coaxially matched with the inner wall of the sleeve, and the end surface of the connecting column is in contact fit with the rear end surface of the sleeve; an inner connecting buckle is coaxially matched in the connecting column, two positioning through holes are symmetrically formed in the circumference of the inner connecting buckle, a bending edge is arranged on the sleeve barrel at the position corresponding to the positioning through holes, and the bending edge is lapped on the front end face of the positioning through hole; the rear end of the inner connecting buckle is provided with a convex edge, and the end surface of the convex edge is clamped with the rear end surface of the inserting ring; the rear end part of the connecting column is connected with the flexible pipe through the welding column.

The rear end of the metal claw is of an inwards-concave arc-shaped structure, a rectangular hole is formed in the tail end of the arc-shaped structure, the upper surface and the lower surface of the front end of the metal claw connecting piece are symmetrically provided with fixing columns respectively, and the rectangular holes in the tail ends of the two metal claws are sleeved on the fixing columns in corresponding positions respectively.

The front ends of the metal claws are of downward hook structures, the end faces of the hook structures are provided with tooth-shaped structures, and the two metal claws are meshed with each other in a tooth shape after being closed.

The transition part of the arc-shaped structure and the metal claw body is provided with a strip-shaped rib.

The handle assembly comprises a sliding ring, a sliding rod and a rotating handle, the sliding rod is of a hollow structure, the front end part of the sliding rod is coaxially matched with the rear end of the flexible pipe, a long-strip-shaped slideway parallel to the axis is arranged on the outer circumference of the sliding rod, the sliding ring is coaxially matched with the outer circumference of the sliding rod and is in sliding fit with the long-strip-shaped slideway, and the rear end of the flexible wire penetrates into a hollow inner cavity of the sliding rod and then is connected with the sliding ring; the outer end part of the sliding rod is connected with a rotating handle.

This application has adopted the structure that sets up the ring on the claw to set up unhooking device in the sleeve, realized the function that the claw breaks away from with the rear after the location, another soft tissue clamp of being convenient for stimulates the ring on the preceding metal clip, provides broad field of vision space for the cutting of target tissue.

Drawings

Figure 1 is an overall perspective view of a soft tissue clip with traction.

Figure 2 is a partial perspective view of a soft tissue clip having a distraction function.

Fig. 3 is a schematic view of a metal claw with a ring.

Fig. 4 is a schematic structural diagram of a metal connecting member.

Fig. 5 is a cross-sectional view of the unhooking device.

FIG. 6 is a partial cross-sectional view of the handle assembly.

Fig. 7 is a view of a soft tissue clip holding a target tissue.

FIG. 8 is a view of a soft tissue clip loosening target tissue.

Figure 9 is a schematic view of the unhooking apparatus of the soft tissue clip disengaged from the pulling assembly.

Figure 10 is a schematic view of another new soft tissue clip positioned in connection with an existing ring.

Detailed Description

As shown in fig. 1 to 4, the soft tissue clamp with the traction function comprises a traction assembly 1 and an operation assembly 2 which are connected; the front end of the traction assembly 1 is symmetrically provided with two elastic metal claws 3 which are oppositely closed, the rear end of the traction assembly 1 is provided with a sleeve 5, the rear end of each metal claw 3 is inserted into the sleeve 5 after being closed and is connected with a metal claw connecting piece 4, and the metal claw connecting piece 4 is positioned in the sleeve 5 and is connected with a unhooking device; a clamping protrusion 3f is arranged at the tail end of the metal claw 3, a metal claw clamping hole 5c is formed in the rear end of the sleeve 5, and the clamping protrusion 3f is in clamping fit with the metal claw clamping hole 5 c; a ring 3a is connected to one of the metal claws 3, the outer circumference of the ring 3a is tangent to the metal claw 3 through a clamping part 3c, and the ring 3a is made of elastic material, the material of the ring is not limited to silica gel, and the shape of the ring is not limited to annular, square or other shapes; the operating assembly 2 comprises a flexible pipe 8, a flexible wire 9 and a handle assembly 10, wherein the handle assembly 10 is connected with the outer end part of the flexible wire 9, the front end part of the flexible wire 9 is provided with a hook 9a, and the hook 9a penetrates through the unhooking device to be connected with a connecting hole 4c on the metal claw connecting piece 4.

As shown in fig. 5, the unhooking device is composed of an inner connecting buckle 6 and a connecting column 7, wherein the front end of the connecting column 7 is provided with an inserting ring 7c, the outer wall of the inserting ring 7c is coaxially matched with the inner wall of the sleeve 5, and the end face 7b of the connecting column 7 is in contact fit with the rear end face of the sleeve 5; an inner connecting buckle 6 is coaxially matched in the connecting column 7, two positioning through holes are symmetrically formed in the circumference of the inner connecting buckle 6, a bending edge 5b is arranged at the corresponding position of the positioning through hole on the sleeve 5, and the bending edge 5b is lapped on the front end face of the positioning through hole; the rear end of the inner connecting buckle 6 is provided with a convex edge, and the end surface of the convex edge is clamped with the rear end surface of the inserting ring 7 c; as shown in fig. 4, in order to ensure that the rear end of the metal claw connecting member 4 can smoothly contact with the front end surface of the inner connecting buckle 6, the rear end portion 4d of the metal claw connecting member 4 has a smaller width than the front end portion and is transited by the inclined surface 4 b; the rear end portion of the connection post 7 is connected to the flexible tube 8 through a welding post 8 a. The protruding edge of 6 rear ends of interior connector link can be spacing to plug-in ring 7c rear end face to through positioning hole and 5b joints of buckling, guaranteed to be connected with sleeve 5, after connector link 6 received the extreme pulling force of metal claw connecting piece 4 including, 5b of buckling can unhook with positioning hole, accomplish the unhook function. The insertion ring 7c is located between the sleeve 5 and the inner connecting buckle 6, and realizes the relative movement of the sleeve 5 and the connecting column 7, when the metal claw 3 rotates, the sleeve 5 rotates along with the rotation, and the connecting column 7 and the flexible pipe 8 do not rotate.

As shown in fig. 3, the rear end of the metal claw 3 is an inwardly concave arc-shaped structure 3g, and the two arc-shaped structures 3g are involutory to make the metal claw have elastic reserve, and the metal claw 3 is expanded under the elastic action when extending out of the sleeve 5; rectangular holes 3e are formed in the tail ends of the arc-shaped structures 3g, fixing columns 4a are symmetrically arranged on the upper surface and the lower surface of the front end of the metal claw connecting piece 4 respectively, and the rectangular holes 3e in the tail ends of the two metal claws 3 are sleeved on the fixing columns 4a in the corresponding positions respectively. The front ends of the metal claws 3 are downward hook structures 3b, the end faces of the hook structures 3b are provided with tooth-shaped structures, and the two metal claws 3 are meshed with each other in a tooth shape after being closed, so that the target tissue can be clamped conveniently. The transition part of the arc-shaped structure 3g and the metal claw 3 is provided with a long-strip-shaped rib 3d, and the long-strip-shaped rib 3d is added to increase the rigidity and elasticity of the metal claw 3, so that the metal claw can freely extend and retract in the sleeve 5.

As shown in fig. 6, the handle assembly 10 includes a sliding ring 10a, a sliding rod 10b and a rotating handle 10c, the sliding rod 10b is a hollow structure, and the front end of the sliding rod 10b is coaxially matched with the rear end of the flexible tube 8, an elongated slide way parallel to the axis is arranged on the outer circumference of the sliding rod 10b, the sliding ring 10a is coaxially matched with the outer circumference of the sliding rod 10b and is in sliding fit with the elongated slide way, and the rear end of the flexible wire 9 penetrates into the hollow inner cavity of the sliding rod 10b and then is connected with the sliding ring 10 a; a rotary handle 10c is connected to an outer end portion of the slide bar 10 b.

The method for clamping the soft tissue by adopting the soft tissue clamp comprises the following steps:

1) the sliding ring 10a is pulled backwards, and the two metal claws 3 are driven to be closed and retracted into the cavity channel 5a in the sleeve 5 through the flexible wires 9 and the metal claw connecting pieces 4;

2) after the endoscope enters the internal environment of human body detection, the soft tissue clip and the ring 3a are placed in the endoscope and extend out of the port of the endoscope, the slip ring 10a is pushed forward, and the two metal claws 3 are driven to open through the flexible wires 9 and the metal claw connecting pieces 4;

3) when the endoscope observes a target tissue, the sliding ring 10a is pulled backwards, the two metal claws 3 clamp the target tissue in the closing process, if the clamping position is found to be inaccurate, the sliding ring 10a and the rotating sliding rod 10b can be repeatedly moved to open, close and rotate the metal claws 3 until the clamping position of the metal claws 3 is accurate, as shown in fig. 7 and 8;

4) when the sliding ring 10a is pulled backwards to reach the limit position, the clamping protrusion 3f arranged at the tail end of the metal claw 3 is clamped with the metal claw clamping hole 5c of the sleeve 5, the metal claw 3 is completely positioned, and permanent closing is achieved, as shown in fig. 9;

5) the slip ring 10a is continuously pulled, the hook 9a of the flexible wire 9 is continuously stressed to be straightened, so that the hook is separated from the metal claw connecting piece 4, and meanwhile, the sleeve 5 is separated from the unhooking device;

6) the former unhooked operating assembly 2 is withdrawn from the endoscope channel and then another new soft tissue clamp is inserted until the traction assembly 1 appears in the endoscope field of vision, the sliding ring 10a in the handle assembly 10 is pushed to open the metal claws 3, wherein the metal claws without the ring 3a are sleeved on the ring 3a of the metal claw 3 in the former step and pulled to the position required to position, and the former ring 3a is used as the auxiliary positioning and traction base of the latter metal claw 3, as shown in fig. 10.

Claims

1. The utility model provides a soft tissue presss from both sides with traction function which characterized in that: comprises a traction component (1) and an operation component (2) which are connected;

the front end of the traction assembly (1) is symmetrically provided with two elastic metal claws (3) which are abutted, the rear end of the traction assembly (1) is provided with a sleeve (5), the rear end of each metal claw (3) is inserted into the sleeve (5) after being closed and is connected with a metal claw connecting piece (4), and the metal claw connecting piece (4) is positioned in the sleeve (5) and is connected with a unhooking device; a clamping protrusion (3 f) is arranged at the tail end of the metal claw (3), a metal claw clamping hole (5 c) is formed in the rear end of the sleeve (5), and the clamping protrusion (3 f) is clamped and matched with the metal claw clamping hole (5 c); a ring (3 a) is connected to one of the metal claws (3), and the outer circumference of the ring (3 a) is tangent to the metal claw (3) through a clamping part (3 c);

the operation assembly (2) comprises a flexible pipe (8), a flexible wire (9) and a handle assembly (10), the handle assembly (10) is connected with the outer end part of the flexible wire (9), a hook (9 a) is arranged at the front end part of the flexible wire (9), and the hook (9 a) penetrates through a unhooking device to be connected with a connecting hole (4 c) in the metal claw connecting piece (4).

2. The soft tissue clip with traction function of claim 1, wherein: the unhooking device consists of an inner connecting buckle (6) and a connecting column (7), wherein the front end part of the connecting column (7) is provided with an inserting ring (7 c), the outer wall of the inserting ring (7 c) is coaxially matched with the inner wall of the sleeve (5), and the end surface (7 b) of the connecting column (7) is in contact fit with the rear end surface of the sleeve (5); an inner connecting buckle (6) is coaxially matched in the connecting column (7), two positioning through holes are symmetrically formed in the circumference of the inner connecting buckle (6), a bending edge (5 b) is arranged at the position, corresponding to the positioning through holes, of the sleeve (5), and the bending edge (5 b) is lapped on the front end face of each positioning through hole; the rear end of the inner connecting buckle (6) is provided with a convex edge, and the end surface of the convex edge is clamped with the rear end surface of the inserting ring (7 c); the rear end of the connecting column (7) is connected with the flexible pipe (8) through a welding column (8 a).

3. The soft tissue clip with traction function of claim 1, wherein: the rear end of the metal claw (3) is of an inwards-concave arc-shaped structure (3 g), a rectangular hole (3 e) is formed in the tail end of the arc-shaped structure (3 g), the upper surface and the lower surface of the front end of the metal claw connecting piece (4) are symmetrically provided with fixing columns (4 a) respectively, and the rectangular holes (3 e) in the tail ends of the two metal claws (3) are sleeved on the fixing columns (4 a) in corresponding positions respectively.

4. The soft tissue clip with traction function of claim 1, wherein: the front end of the metal claw (3) is a downward hook structure (3 b), the end face of the hook structure (3 b) is provided with a tooth-shaped structure, and the two metal claws (3) are meshed with each other after being closed.

5. The soft tissue clip with traction function of claim 3, wherein: and elongated ribs (3 d) are arranged at the transition positions of the arc-shaped structures (3 g) and the metal claw bodies (3).

6. The soft tissue clip with traction function of claim 1, wherein: the handle assembly (10) comprises a sliding ring (10 a), a sliding rod (10 b) and a rotating handle (10 c), the sliding rod (10 b) is of a hollow structure, the front end part of the sliding rod (10 b) is coaxially matched with the rear end of the flexible pipe (8), a long strip-shaped slideway parallel to the axis is arranged on the outer circumference of the sliding rod (10 b), the sliding ring (10 a) is coaxially matched with the outer circumference of the sliding rod (10 b) and is in sliding fit with the long strip-shaped slideway, and the rear end of the flexible wire (9) penetrates into a hollow inner cavity of the sliding rod (10 b) and is connected with the sliding ring (10 a); the outer end part of the sliding rod (10 b) is connected with a rotating handle (10 c).