CN219516382U - Continuous sampling endoscope biopsy forceps - Google Patents

Abstract

The utility model belongs to the technical field of medical equipment, and in particular relates to a continuous sampling endoscope biopsy forceps, wherein a forceps frame comprises a second connecting pipe, the second connecting pipe is positioned in a first connecting pipe, and brackets are symmetrically arranged on the second connecting pipe; the clamping device comprises a clamping head, a connecting rod, a pull rod and a cylinder, wherein the clamping head, the connecting rod, the pull rod and the cylinder are symmetrically arranged, the end part of the connecting rod is fixedly connected with the clamping head, the middle part of the connecting rod is connected with a support pin shaft, the other end part of the connecting rod is connected with the pull rod pin shaft, the cylinder is positioned in a second connecting pipe, a ring groove is formed in the cylinder, a column bar is connected in the ring groove in a sliding manner, the column bar is rotationally connected with the pull rod, a third connecting pipe is arranged at the bottom of the cylinder, and the third connecting pipe is positioned in the second connecting pipe; the trachea is located the third connecting pipe, trachea and cylinder threaded connection, tracheal tip and suction nozzle fixed connection, the lateral wall and the support fixed connection of suction nozzle for solve current biopsy forceps because binding clip sample storage space is narrow and small, can only be used to the problem of a small amount of samplings of single.

Description

Continuous sampling endoscope biopsy forceps

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a continuous sampling endoscope biopsy forceps.

Background

Biopsy forceps are a tool for performing biting and sampling on focus parts in the abdominal cavity of a human body, and are generally matched with an endoscope for use. In the endoscopy, when a pathological examination is required to be performed on a lesion, a biopsy forceps is fed into a patient through an endoscope forceps channel, and tissue of the lesion is grasped.

In the jaw assembly of the existing biopsy forceps, two jaws are hinged to a jaw frame by the same rivet. The clamp head assembly is limited by the narrow sample storage space in the clamp head assembly, and can be only used for single small-amount sampling; moreover, the clamp head of the existing biopsy clamp cannot be loosened after biting the sample, and the sample is easy to fall off from the clamp head after being loosened. In conventional endoscopy, a lesion or a biopsy usually needs to take about 3 to 4 specimens, the biopsy forceps need to be used for advancing and retreating the forceps about 3 to 4 times respectively through the forceps channel of the endoscope, and an objective lens of the endoscope and the forceps head of the biopsy forceps need to be adjusted after each forceps advancing, so that the operation is time-consuming and labor-consuming. Furthermore, the wound surface of each sampling test can start to have a small amount of bleeding within a few seconds after sampling test, and can stop automatically after 1-5 minutes. Such small amount of bleeding can contaminate the lesion, affect the field of view, and reduce the accuracy of subsequent retrieval.

Disclosure of Invention

In view of the above, the utility model aims to provide a biopsy forceps for a continuous sampling endoscope, which solves the problem that the existing biopsy forceps can only be used for sampling a small amount of sample at a time due to the small sample storage space of the forceps head.

The utility model solves the technical problems by the following technical means:

the forceps for the continuous sampling endoscope comprise a forceps head component and a first connecting pipe, wherein the forceps head component is arranged at the end part of the first connecting pipe and comprises a forceps frame, a forceps holder, an air pipe and a suction nozzle; the clamping device comprises a clamping head, a connecting rod, a pull rod and a cylinder which are symmetrically arranged, wherein the end part of the connecting rod is fixedly connected with the clamping head, the middle part of the connecting rod is connected with a support pin shaft, the other end part of the connecting rod is connected with the pull rod pin shaft, the cylinder is positioned in a second connecting pipe, an annular groove is formed in the cylinder, a column bar is connected in a sliding manner in the annular groove, the column bar is rotationally connected with the pull rod, a threaded hole is formed in the middle part of the cylinder, a third connecting pipe is arranged at the bottom of the cylinder, and the third connecting pipe is positioned in the second connecting pipe; the air pipe is positioned in the third connecting pipe, the air pipe is in threaded connection with the column body, the end part of the air pipe is fixedly connected with the suction nozzle, and the side wall of the suction nozzle is fixedly connected with the bracket.

Based on the technical scheme, the utility model also improves the following steps:

further, the suction nozzle comprises a storage cabin and a horn mouth, the bottom of the storage cabin is communicated with the air pipe, the top of the storage cabin is in a thin mouth shape, and the thin mouth end of the horn mouth is fixedly connected with the storage cabin. Preventing the sample from falling off the suction nozzle.

Further, the tip of the flare is arc-shaped. The sample is conveniently clamped.

Further, the second connecting pipe is in threaded connection with the first connecting pipe. The second connecting pipe is rotated to enable the clamp head assembly to be attached to the first connecting pipe. The clamp head assembly can slide in the clamp channel conveniently.

Further, the clamping heads are in a shell shape formed by a semi-cylinder and a quarter sphere, and when the two clamping heads are closed, a cylinder shape with a ball head is formed. The clamp head assembly can slide in the clamp channel conveniently.

The utility model has the beneficial effects that: the air pipe is rotated, and the cylinder moves along the air pipe and pulls the pull rod under the limit action of the clamp frame, so that the clamp head is closed, the sampling function is realized, and the air pipe is connected with the cylinder rod through threads, so that the opening and closing layering degree of the clamp head can be stably and accurately controlled; when the sample is clamped, under tracheal suction effect, the suction nozzle can hold the sample, and after the sample is clamped, under tracheal continuous suction, the sample can inwards move along the suction nozzle, even the chuck is loosened, the sample can not drop down to can take a sample many times in succession, the sample is convenient and fast more.

Drawings

The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic perspective view of a biopsy forceps according to an embodiment of the utility model;

FIG. 2 is a schematic perspective view of a binding clip assembly according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a binding clip assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic illustration of the mating of the air tube with the nozzle in an embodiment of the utility model;

FIG. 5 is a schematic view of the structure of a jaw in an embodiment of the utility model;

FIG. 6 is a schematic view of the engagement of the jaws with a first connecting tube according to an embodiment of the present utility model;

FIG. 7 is an enlarged view of a portion of FIG. 3 at A;

the device comprises a 1-first connecting pipe, a 2-clamp frame, a 21-second connecting pipe, a 22-bracket, a 3-clamp, a 31-clamp head, a 32-connecting rod, a 33-pull rod, a 34-column body, a 35-ring groove, a 36-column bar, a 37-threaded hole, a 38-third connecting pipe, a 4-air pipe, a 5-suction nozzle, a 51-storage cabin and a 52-horn mouth.

Detailed Description

The utility model will be described in detail below with reference to the attached drawings and specific examples:

as shown in fig. 1 to 7

The continuous sampling endoscope biopsy forceps comprise a forceps head assembly and a first connecting pipe 1, wherein the forceps head assembly is arranged at the end part of the first connecting pipe 1 and comprises a forceps frame 2, forceps clamps 3, an air pipe 4 and a suction nozzle 5; the clamp frame 2 comprises a second connecting pipe 21, the second connecting pipe 21 is positioned in the first connecting pipe 1, and brackets 22 are symmetrically arranged on the second connecting pipe 21; the clamp 3 comprises a clamping head 31, a connecting rod 32, a pull rod 33 and a column 34 which are symmetrically arranged, wherein the end part of the connecting rod 32 is fixedly connected with the clamping head 31, the middle part of the connecting rod 32 is in pin shaft connection with a bracket 22, the other end part of the connecting rod 32 is in pin shaft connection with the pull rod 33, the clamping head 31 can be opened or closed by pulling the pull rod 33, the column 34 is positioned in the second connecting pipe 21, an annular groove 35 is formed in the column 34, a column bar 36 is slidably connected in the annular groove 35, the column bar 36 can slide along the annular groove 35, the column bar 36 is rotationally connected with the pull rod 33, a threaded hole 37 is formed in the middle part of the column 34, a third connecting pipe 38 is arranged at the bottom of the column 34, and the third connecting pipe 38 is positioned in the second connecting pipe 21; the trachea 4 is located third connecting pipe 38, and trachea 4 passes screw hole 37, and trachea 4 and cylinder 34 threaded connection, and the afterbody of trachea 4 is used for being connected with the negative pressure device, under the effect of negative pressure device, can make trachea 4 inhale, and tracheal 4's tip and suction nozzle 5 fixed connection, suction nozzle 5 are located between chuck 31, and suction nozzle 5 is used for absorbing and storing the sample, and suction nozzle 5's lateral wall and support 22 fixed connection, and trachea 4, third connecting pipe 38, second connecting pipe 21 and the length of first connecting pipe 1 reduce in proper order.

Because the air pipe 4 is in threaded connection with the column 34, when the air pipe 4 is rotated, the column 34 moves along the air pipe 4 under the limit action of the clamp frame 2, so that the pull rod 33 is pulled, the clamping head 31 is further closed, the sampling function is realized, and the air pipe 4 is in threaded connection with the column bar 36, so that the opening and closing layering degree of the clamping head 31 can be stably and accurately controlled; when the sample is clamped, under the suction effect of the air pipe 4, the suction nozzle 5 can suck the sample, after the sample is clamped, the sample can move inwards along the suction nozzle 5 under the continuous suction of the air pipe 4, and even if the clamping head 31 is loosened under the suction of the air pipe 4, the sample can not fall down, so that the sample can be sampled continuously and repeatedly, and the sampling is more convenient and quick.

Specifically, the suction nozzle 5 includes a storage compartment 51 and a flare 52, the bottom of the storage compartment 51 is communicated with the air pipe 4, the top of the storage compartment 51 is in a thin mouth shape, the thin mouth end of the flare 52 is fixedly connected with the storage compartment 51, and when a sample is sucked into the storage compartment 51 from the flare 52, the sample does not fall from the storage compartment 51 even if there is no suction of the air pipe 4.

Specifically, the top end of the bell mouth 52 is arc-shaped, and the arc-shaped is matched with the opening and closing path of the chuck 31, when the chuck 31 is closed, the outer end of the bell mouth 52 just abuts against the inner wall of the chuck 31, so that a sample is conveniently clamped.

Specifically, the second connecting pipe 21 is in threaded connection with the first connecting pipe 1, when the clamping head 31 is closed, the second connecting pipe 21 is rotated to enable the clamp frame 2 to be received in the first connecting pipe 1, the bottom of the clamping head 31 abuts against the end part of the first connecting pipe 1, and the clamp head assembly can conveniently slide in the clamp channel.

Specifically, the clamping heads 31 are in a shell shape formed by half cylinders and quarter spheres, when the two clamping heads 31 are closed, a cylinder 34 with a ball head is formed, and the closed clamping heads 31 in the shape of the ball head cylinder 34 are convenient for the end part of the first connecting pipe 1 to be attached, and are also more convenient for the clamp head assembly to slide in the clamp channel.

The application method of the utility model is as follows: the trachea 4 is rotated, the cylinder 34 moves along the trachea 4 under the limiting action of the clamp frame 2, so that the pull rod 33 is pulled, the clamping head 31 is closed, then the clamp head assembly is inserted into the abdominal cavity focus of a patient along the clamp channel of the endoscope, the trachea 4 is reversed, the clamping head 31 is opened, the suction nozzle 5 is close to the sampling position, the suction nozzle 5 is used for sucking a sample, then the trachea 4 is rotated in the positive direction again, the clamping head 31 is closed to take down the sample, after the sample is taken down, the sample moves inwards along the suction nozzle 5 under the continuous suction of the trachea 4, and the sample cannot fall under the suction of the trachea 4 even if the clamping head 31 is loosened, so that the sample can be sampled continuously and repeatedly, and the sample is more convenient and quick.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims (5)

1. A continuous sampling endoscope biopsy forceps, includes binding clip subassembly and first connecting pipe (1), the binding clip subassembly install in the tip of first connecting pipe (1), its characterized in that: the clamp head assembly comprises a clamp frame (2), clamp clamps (3), an air pipe (4) and a suction nozzle (5), wherein the clamp frame (2) comprises a second connecting pipe (21), the second connecting pipe (21) is positioned in the first connecting pipe (1), and brackets (22) are symmetrically arranged on the second connecting pipe (21);

the clamping device comprises a clamping head (31), a connecting rod (32), a pull rod (33) and a column body (34) which are symmetrically arranged, wherein the end part of the connecting rod (32) is fixedly connected with the clamping head (31), the middle part of the connecting rod (32) is in pin shaft connection with a bracket (22), the other end part of the connecting rod (32) is in pin shaft connection with the pull rod (33), the column body (34) is positioned in the second connecting pipe (21), an annular groove (35) is formed in the column body (34), a column bar (36) is connected in a sliding manner in the annular groove (35), the column bar (36) is in rotary connection with the pull rod (33), a threaded hole (37) is formed in the middle part of the column body (34), a third connecting pipe (38) is arranged at the bottom of the column body (34), and the third connecting pipe (38) is positioned in the second connecting pipe (21).

The air pipe (4) is located in the third connecting pipe (38), the air pipe (4) is in threaded connection with the cylinder (34), the end part of the air pipe (4) is fixedly connected with the suction nozzle (5), and the side wall of the suction nozzle (5) is fixedly connected with the support (22).

2. A continuous sampling endoscopic biopsy forceps according to claim 1, wherein: the suction nozzle (5) comprises a storage cabin (51) and a horn mouth (52), wherein the bottom of the storage cabin (51) is communicated with the air pipe (4), the top of the storage cabin (51) is in a thin mouth shape, and the thin mouth end of the horn mouth (52) is fixedly connected with the storage cabin (51).

3. A continuous sampling endoscopic biopsy forceps according to claim 2, wherein: the top end of the horn mouth (52) is arc-shaped.

4. A continuous sampling endoscopic biopsy forceps according to claim 3, wherein: the second connecting pipe (21) is in threaded connection with the first connecting pipe (1).

5. A continuous sampling endoscopic biopsy forceps according to claim 4, wherein: the clamping heads (31) are in a shell shape formed by half cylinders and quarter spheres, and when the two clamping heads (31) are closed, a cylinder (34) with a ball head is formed.