CN213156089U - Biopsy forceps under scope - Google Patents

Abstract

The utility model discloses a biopsy forceps under endoscope, relating to the technical field of medical equipment, comprising a pull rod, wherein the front end of the pull rod is connected with two connecting rods, the other ends of the two connecting rods are respectively connected with two forceps heads which are arranged in a crossed way, and the two forceps heads are connected with each other at the crossed point through a first rotating shaft; the rear end of the pull rod is connected with a push plate; the pull rod is sleeved with an outer sleeve, the pull rod penetrates through the outer sleeve and is connected with the push plate, and the two tong heads are connected to the front end of the outer sleeve through a first rotating shaft; an operating pipe is sleeved outside the rear end of the outer sleeve, a protruding part is arranged in the operating pipe, an elastic part is arranged between the protruding part and the push plate, and the elastic part is sleeved on the pull rod; the push pedal rear side is equipped with the lock piece, and the lock piece rear side is equipped with matched with pressure bar spare, and lock piece and pressure bar spare overcoat are equipped with matched with guide rail spare, and guide rail spare is fixed to be set up in the control tube, and the outer tube overcoat is equipped with the direction regulator. The utility model discloses a press the button action and accomplish opening and closing of pliers, guarantee the stability of operative hand, simplify the operation more.

Description

Biopsy forceps under scope

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to biopsy forceps under scope.

Background

At present, biopsy forceps under an endoscope can enter a patient body through the endoscope to inspect internal diseases and clamp lesion tissues, so that pathological bases are provided for diagnosis. Tissue biopsy needs two professional cooperations to accomplish at least under current scope, because art person and assistant thinking are asynchronous, often increases the operation difficulty, uses this apparatus can art person and accomplish under the scope tissue excision alone, reduces manpower resources, and biopsy forceps can't convenient regulation direction under the scope of using clinically, needs art person to twist reverse the health and look for suitable art district field of vision many times, hardly carries out operation on next step under the position of awkward.

Disclosure of Invention

The utility model provides a biopsy forceps under endoscope, which comprises a forceps head, a connecting rod, a pull rod, an outer sleeve, an operating tube, a direction regulator, an elastic part, a locking part, a pressing rod part and a guide rail part;

the front end of the pull rod is connected with two connecting rods, the other ends of the two connecting rods are respectively connected with two cross tong heads, and the two cross tong heads are connected at a cross point through a first rotating shaft;

the rear end of the pull rod is connected with a push plate;

the outer sleeve is sleeved outside the pull rod, the pull rod penetrates through the outer sleeve and is connected with the push plate, and the connecting rod and the clamp rod of the clamp head are arranged in the front end of the outer sleeve;

the two tong heads are connected to the front end of the outer sleeve through a first rotating shaft;

an operating pipe is sleeved outside the rear end of the outer sleeve, a protruding part is arranged in the operating pipe, an elastic part is arranged between the protruding part and the push plate, and the elastic part is sleeved on the pull rod;

the rear side of the push plate is provided with a locking piece, the rear side of the locking piece is provided with a matched pressing rod piece, the locking piece and the pressing rod piece are sleeved with matched guide rail pieces, the guide rail pieces are fixedly arranged in the operating pipe, the rear end of each pressing rod piece extends out of one part of the rear end of the operating pipe, and the pressing rod pieces are matched with the locking piece through the guide rail pieces to control the movement of the locking piece;

the outer sleeve is sleeved with a direction regulator.

Furthermore, the outer wall of the guide rail part is fixedly connected with the inner wall of the operation pipe, the inner wall of the guide rail part is provided with a slide rail, and the bottom of the slide rail is an inclined plane;

the rear end of the locking piece is provided with a plurality of indexing claws, each indexing claw comprises a deep groove and a shallow groove, the two grooves are arranged in a staggered mode, and the tops of the deep grooves and the shallow grooves are inclined planes;

the front end of the pressing rod piece is provided with a sliding claw matched with the indexing claw;

the locking piece and the pressing rod piece are both provided with sliding grooves matched with the sliding rails, and the sliding rails slide in the sliding grooves;

the pressing rod piece slides in the sliding groove and the deep groove of the indexing claw through the sliding rail to rotate the locking piece;

and a part of the rear end of the pressing rod piece extending out of the rear end of the operating pipe is a pressing rod, and the pressing rod penetrates through the rear wall of the operating pipe.

Furthermore, a first through hole matched with the pressing rod is formed in the rear wall of the pressing rod piece, and the pressing rod slides in the first through hole;

the main body sections of the pressing rod piece and the locking piece are both of circular structures, and the inner diameter of the first through hole is smaller than the section diameter of the main body of the pressing rod piece.

Furthermore, the two connecting rods are hinged through a second rotating shaft, and the second rotating shaft is connected with the pull rod.

Furthermore, a first groove matched with the second rotating shaft is formed in the inner wall of the outer sleeve, and the second rotating shaft slides in the first groove.

The outer sleeve is provided with a third through hole, and the first rotating shaft passes through the third through hole and acts on the intersection point of the two tong heads;

and a second through hole matched with the tong head and the connecting rod is formed in the outer sleeve, and the tong head and the connecting rod slide in the second through hole.

Furthermore, a second groove is formed in the operating pipe, the direction regulator is arranged in the second groove, and the direction regulator is connected with the second groove in a sliding mode.

Furthermore, both sides of the top of the second groove are inclined planes, the diameter of the direction regulator is smaller than that of the operating pipe, and the height of the top of the direction regulator exceeds the bottom end of the inclined plane at the top of the second groove.

Furthermore, the outer sleeve is externally provided with a high-frequency electrotome connecting end which is electrically connected with the outer wall of one side of the operating tube;

the outer layer of the front end of the outer sleeve is wrapped with an insulating material layer.

The utility model has the advantages that:

the utility model provides a biopsy forceps under scope, through the lock piece, the presser bar spare, the cooperation of guide rail spare, make can be simple the button action accomplish opening and the closure of pliers, guarantee the stability of operative hand, it is meticulous to ensure to operate in the art, avoid vice damage, improve the operation security, simplify the operation more, through the direction regulator, make need art person need not twist reverse the health and can look for the suitable art district field of vision, conveniently carry out operation on next step, the electrical equipment port has been increased, can realize the tissue cutting, hemostatic function.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

FIG. 1 is a schematic view of the opening of the binding clip of the present invention;

FIG. 2 is a schematic view of the closing of the binding clip of the present invention;

fig. 3 is a schematic view of the locked state of the present invention;

FIG. 4 is a schematic view of a locking member according to the present invention;

fig. 5 is a schematic structural view of the pressing bar member of the present invention;

fig. 6 is a schematic structural view of a rail member according to the present invention;

FIG. 7 is a schematic view of a partial structure of the outer sleeve according to the present invention;

fig. 8 is a schematic structural view of the binding clip of the present invention.

Reference numerals:

1-is a binding clip, 2-connecting rod, 3-pull rod, 4-outer sleeve, 5-operation tube, 6-direction regulator, 7-elastic piece, 8-locking piece, 9-pressing rod piece, 10-guide rail piece, 11-high frequency electrotome connecting end;

101-a first rotating shaft, 201-a second rotating shaft and 301-a push plate;

401-first recess, 402-second through hole, 403-third through hole;

501-a protruding piece, 502-a second groove, 503-a first through hole;

801-indexing claw, 802-sliding groove, 901-sliding claw, 902-pressing rod and 1001-sliding rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 8, an endoscopic biopsy forceps comprises a forceps head 1, a connecting rod 2, a pull rod 3, an outer sleeve 4, an operating tube 5, a direction regulator 6, an elastic member 7, a locking member 8, a pressing rod member 9 and a guide rail member 10;

the front end of the pull rod 3 is connected with two connecting rods 2, the two connecting rods 2 are hinged through a second rotating shaft 201, the second rotating shaft 201 is fixedly connected with the pull rod 3, the other ends of the two connecting rods 2 are respectively hinged with two pliers heads 1 which are arranged in a crossed mode, and the two pliers heads 1 are hinged through a first rotating shaft 101 at the crossed point;

the rear end of the pull rod 3 is fixedly connected with a push plate 301;

an outer sleeve 4 is sleeved outside the pull rod 3, the pull rod 3 penetrates through the outer sleeve 4 and is fixedly connected with the push plate 301, and the connecting rod 2 and the clamp rod of the clamp head 1 are arranged in the front end of the outer sleeve 4;

the two tong heads 1 are hinged at the front end of the outer sleeve 4 through a first rotating shaft 101; the front end of the outer sleeve 4 is provided with a third through hole 403, and the first rotating shaft 101 passes through the third through hole 403 and acts on the intersection point of the two tong heads 1;

the outer sleeve 4 is provided with a second through hole 402 matched with the tong head 1 and the connecting rod 2, and the tong rod part of the tong head 1 and the connecting rod 2 slide in the second through hole 402;

the inner wall of the outer sleeve 4 is provided with a first groove 401 matched with the second rotating shaft 201, and the second rotating shaft 201 slides in the first groove 401;

an operating pipe 5 is sleeved outside the rear end of the outer sleeve 4, a protruding part 501 is arranged in the operating pipe 5, an elastic part 7 is arranged between the protruding part 501 and the push plate 301, the elastic part 7 is sleeved on the pull rod 3, the elastic part 7 is preferably a spring, the diameter of the elastic part 7 is larger than that of the protruding part 501, and the diameter of the elastic part 7 is smaller than that of the push plate 301, so that the normal use of the elastic part is facilitated;

a locking piece 8 is arranged at the rear side of the push plate 301, a matched pressure bar piece 9 is arranged at the rear side of the locking piece 8, a matched guide rail piece 10 is sleeved outside the locking piece 8 and the pressure bar piece 9, the guide rail piece 10 is fixedly arranged in the operating pipe 5, a part of the rear end of the pressure bar piece 9 extends out of the rear end of the operating pipe 5, and the pressure bar piece 9 is matched with the locking piece 8 through the guide rail piece 10 to control the movement of the locking piece 8;

the outer wall of the guide rail part 10 is fixedly connected with the inner wall of the operation tube 5, the inner wall of the guide rail part 10 is provided with a slide rail 1001, and the bottom of the slide rail 1001 is an inclined plane;

the rear end of the locking piece 8 is provided with a plurality of indexing claws 801, each indexing claw 801 comprises a deep groove and a shallow groove, the two grooves are arranged in a staggered manner, and the tops of the deep grooves and the shallow grooves are inclined planes;

the front end of the compression bar piece 9 is provided with a sliding claw 901 matched with the indexing claw 801;

the locking piece 8 and the pressing rod piece 9 are both provided with a sliding groove 802 matched with the sliding rail 1001, and the sliding rail 1001 slides in the sliding groove 802;

the pressing rod piece 9 rotates the locking piece 8 through the sliding of the sliding rail 1001 on the sliding chute 802 and the indexing claw 801;

the part of the rear end of the pressing rod piece 9 extending out of the rear end of the operation tube 5 is a pressing rod 902, and the pressing rod 902 penetrates through the rear wall of the operation tube 5.

The direction regulator 6 is sleeved outside the outer sleeve 4.

The utility model provides a biopsy forceps under scope, operation is pressed depression bar 902 and is driven presser bar 9, presser bar 9 drives locking piece 8 and moves along slide rail 1001 of guide rail spare 10 forward, locking piece 8 is to pushing away pulling the power, it moves to drive pull rod 3 to stretch out forward, pull rod 3 drives second pivot 201 and slides forward in first recess 401, thereby drive the interval grow of two articulated connecting rod 2 other ends, two connecting rod 2 drive the jaw bar interval grow of two jaw 1, make two jaw 1 that articulate at the crosspoint through first pivot 101 open; due to the action of the protruding piece 501 and the push plate 301, the elastic piece 7 is compressed, the compressed elastic piece 7 needs to be reset, the locking piece 8 is always attached to the sliding rail 1001, the elastic piece 7, the pressing rod piece 9 and the guide rail piece 10 jointly act, the locking piece 8 rotates, the pressing rod piece 9 is pressed to slide along the sliding rail 1001, the locking piece 8 moves along the sliding rail 1001 of the guide rail piece 10 and slides to a certain distance, the sliding rail 1001 enters the deep groove of the indexing claw 801 from the sliding groove 802, the pull rod 3 extends out and is locked, and the two forceps heads 1 are always in an open state; the rotation direction regulator 6 drives the outer sleeve 4 to rotate and drives the forceps head 1 to rotate, so that the forceps tip direction of the forceps head 1 is regulated to be beneficial to clamping tissues at a proper angle; continuing to operate the pressing rod 902 to drive the pressing rod member 9, so that the pressing rod member 9 drives the locking member 8 to move forwards along the sliding rail 1001 of the guide rail member 10 and slide to a certain distance, the sliding rail 1001 is separated from the deep groove of the indexing claw 801 and enters the shallow groove of the indexing claw 801, the pressing rod member 9 is released, and due to the action of the elastic member 7, the sliding rail 1001 slides into the sliding groove 802 from the inclined surface of the shallow groove, so that the pull rod 3 retracts; the locking piece 8 is driven to rotate by utilizing the sliding of the inclined plane, so that the extension and the retraction of the pull rod are realized; the pull rod 3 drives the second rotating shaft 201 to slide backwards in the first groove 401, so that the distance between the other ends of the two hinged connecting rods 2 is reduced, the distance between the two connecting rods 2 drives the two tong heads 1 to be reduced, and the two tong heads 1 hinged at the intersection through the first rotating shaft 101 are closed; the two clamp rods of the two clamp heads 1 and the two connecting rods 2 slide in the second through holes 402 when being opened and closed.

The utility model discloses an in one embodiment, the depression bar piece 9 back wall is equipped with the first through-hole 503 with depression bar 902 assorted, when pressing operation depression bar 902, and depression bar 902 is reciprocal in first through-hole 503 and slides, and the main part cross-section of depression bar piece 9 and locking piece 8 is circular structure, and the internal diameter of first through-hole 503 is less than the cross-sectional diameter of the 9 main parts of depression bar piece, avoids the depression bar piece 9 to break away from handling tube 5.

In an embodiment of the present invention, the front portion of the operation tube 5 is provided with a second groove 502, the direction adjuster 6 is disposed in the second groove 502, the direction adjuster 6 is slidably connected to the second groove 502 to limit the position of the direction adjuster 6, and the position of the outer sleeve 4 is limited because the direction adjuster 6 is fixedly connected to the outer sleeve 4, so that the outer sleeve 4 can only be operated and rotated by the direction adjuster 6 without play; the two sides of the top of the second groove 502 are inclined planes, so that a structure with a trapezoidal section is formed, the trapezoid is reverse, one long bottom edge is called as a lower bottom, one short bottom edge is called as an upper bottom, the diameter of the direction regulator 6 is smaller than that of the operating tube 5, the top of the direction regulator 6 exceeds a part of the bottom end of the inclined plane at the top of the second groove 502, namely the top of the direction regulator 6 exceeds a part of the upper bottom of the trapezoid structure, the diameter of the direction regulator 6 is smaller than that of the operating tube 5, so that the position of the direction regulator 6 is conveniently limited, the top of the direction regulator 6 exceeds a part of the bottom end of the inclined plane at the top of the second groove 502, so that a user can conveniently operate the direction regulator 6, and when the direction regulator 6 needs to rotate, the part, beyond which the direction regulator 6 exceeds, is rotated from the inclined plane at; the regulation rotation of the binding clip 1 is completed.

In an embodiment of the utility model, the operation tube 5 is an operation part for the operator to work and keeps not rotating, the outer sleeve 4 and the forceps head 1 are made of conductive materials, the outer sleeve 4 is externally provided with an electrically connected high-frequency electrotome connecting end 11, so that the specimen is conveniently taken in the operation or the tissue is conveniently and directly electrically cauterized when the tissue is cut off, after the two forceps heads 1 are closed to clamp the tissue, the tissue is cut off and electrically coagulated by foot, and the high-frequency electrotome connecting end 11 acts on the two forceps heads 1; the high-frequency electrotome connecting end 11 penetrates through the outer wall of one side of the operating tube 5, is wrapped on the outer sleeve 4 through a coil sleeve, is electrically connected with the outer sleeve 4, does not interfere the rotation of the outer sleeve 4, and limits the position of the high-frequency electrotome connecting end 11, so that the high-frequency electrotome connecting end 11 does not rotate when the outer sleeve 4 rotates, and the wire is prevented from being wound by hands; the outer layer of the front end of the outer sleeve 4 is wrapped with an insulating material layer, namely, the region of the outer sleeve 4 exposed outside the operating pipe 5 is wrapped with the insulating material layer; when the high-frequency electrotome is used, the connecting end 11 of the high-frequency electrotome is connected with the positive electrode of the high-frequency electrotome, and the negative electrode of the high-frequency electrotome is contacted with a human body through the negative electrode plate; a high-frequency electric knife is an electric surgical instrument for replacing a mechanical scalpel to cut tissues. It heats the tissue when the high-frequency high-voltage current that it produced through the tip of effective electrode contacts with the organism, realizes the separation and the solidification to organism tissue to play cutting and hemostatic purpose, in the high-frequency electrotome operation, the electric current flows into the human body from the pen-knife, then flows out at the negative plate.

The utility model provides a biopsy forceps under scope, through lock piece 8, hold-down member 9, the cooperation of guide rail spare 10, make opening and the closure of pliers be accomplished in the button action that can be simple, guarantee the stability of operative hand, it is meticulous to ensure to operate in the art, avoid vice damage, improve the operation security, simplify the operation more, through direction regulator 6, make the needs art person need not twist reverse the health and can look for the suitable art district field of vision, conveniently carry out operation on next step, the electrical equipment port has been increased, can realize the tissue cutting, hemostatic function.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. Biopsy forceps under an endoscope are characterized by comprising a forceps head (1), a connecting rod (2), a pull rod (3), an outer sleeve (4), an operating tube (5), a direction regulator (6), an elastic piece (7), a locking piece (8), a pressing rod piece (9) and a guide rail piece (10);

the front end of the pull rod (3) is connected with two connecting rods (2), the other ends of the two connecting rods (2) are respectively connected with two crosswise arranged tong heads (1), and the two tong heads (1) are connected at a cross point through a first rotating shaft (101);

the rear end of the pull rod (3) is connected with a push plate (301);

an outer sleeve (4) is sleeved outside the pull rod (3), the pull rod (3) penetrates through the outer sleeve (4) to be connected with the push plate (301), and the connecting rod (2) and the clamp rod of the clamp head (1) are arranged in the front end of the outer sleeve (4);

the two tong heads (1) are connected to the front end of the outer sleeve (4) through a first rotating shaft (101);

an operating pipe (5) is sleeved outside the rear end of the outer sleeve (4), a protruding part (501) is arranged in the operating pipe (5), an elastic part (7) is arranged between the protruding part (501) and the push plate (301), and the elastic part (7) is sleeved on the pull rod (3);

a locking piece (8) is arranged on the rear side of the push plate (301), a matched pressure rod piece (9) is arranged on the rear side of the locking piece (8), a matched guide rail piece (10) is sleeved outside the locking piece (8) and the pressure rod piece (9), the guide rail piece (10) is fixedly arranged in the operating pipe (5), the rear end of the pressure rod piece (9) extends out of one part of the rear end of the operating pipe (5), and the pressure rod piece (9) is matched with the locking piece (8) through the guide rail piece (10) to control the movement of the locking piece (8);

and a direction regulator (6) is sleeved outside the outer sleeve (4).

2. An endoscopic biopsy forceps according to claim 1, wherein the outer wall of the rail member (10) is fixedly connected with the inner wall of the operation tube (5), the inner wall of the rail member (10) is provided with a slide rail (1001), and the bottom of the slide rail (1001) is an inclined surface;

the rear end of the locking piece (8) is provided with a plurality of indexing claws (801), each indexing claw (801) comprises a deep groove and a shallow groove, the two grooves are arranged in a staggered mode, and the tops of the deep grooves and the shallow grooves are inclined planes;

the front end of the compression bar piece (9) is provided with a sliding claw (901) matched with the indexing claw (801);

the locking piece (8) and the pressing rod piece (9) are respectively provided with a sliding groove (802) matched with the sliding rail (1001), and the sliding rail (1001) slides in the sliding groove (802);

the pressing rod piece (9) slides in the deep grooves of the sliding groove (802) and the indexing claw (801) through the sliding rail (1001) to rotate the locking piece (8);

one part of the rear end of the pressure bar piece (9) extending out of the rear end of the operating pipe (5) is a pressure bar (902), and the pressure bar (902) penetrates through the rear wall of the operating pipe (5).

3. An endoscopic biopsy forceps according to claim 2, characterized in that the rear wall of the compression bar member (9) is provided with a first through hole (503) matched with the compression bar (902), and the compression bar (902) slides in the first through hole (503);

the cross sections of the main bodies of the compression bar piece (9) and the locking piece (8) are both circular structures, and the inner diameter of the first through hole (503) is smaller than the cross section diameter of the main body of the compression bar piece (9).

4. Endoscopic biopsy forceps according to claim 1, characterized in that the two links (2) are hinged by a second rotation shaft (201), the second rotation shaft (201) being connected to the pull rod (3).

5. Endoscopic biopsy forceps according to claim 4, characterized in that the inner wall of the outer sleeve (4) is provided with a first groove (401) for cooperating with the second shaft (201), the second shaft (201) sliding in the first groove (401).

6. An endoscopic biopsy forceps according to claim 1, characterized in that the outer sleeve (4) is provided with a third through hole (403), and the first rotating shaft (101) passes through the third through hole (403) and acts on the intersection point of the two forceps heads (1);

and a second through hole (402) matched with the tong head (1) and the connecting rod (2) is formed in the outer sleeve (4), and the tong head (1) and the connecting rod (2) slide in the second through hole (402).

7. An endoscopic biopsy forceps according to claim 1, wherein the operation tube (5) is provided with a second groove (502), the direction adjuster (6) is arranged in the second groove (502), and the direction adjuster (6) is slidably connected with the second groove (502).

8. An endoscopic biopsy forceps according to claim 7, wherein the top of the second groove (502) is provided with an inclined surface at two sides, the diameter of the direction adjuster (6) is smaller than that of the operation tube (5), and the top height of the direction adjuster (6) exceeds the bottom end of the inclined surface at the top of the second groove (502).

9. An endoscopic biopsy forceps according to claim 1, wherein the outer sleeve (4) is externally provided with a high-frequency electric knife connecting end (11) which is electrically connected with the outer wall of one side of the operation tube (5), and the high-frequency electric knife connecting end (11) penetrates through the outer wall of one side of the operation tube (5);

the outer layer of the front end of the outer sleeve (4) is wrapped with an insulating material layer.

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