CN218960798U

CN218960798U - Sampling forceps with adjustable opening

Info

Publication number: CN218960798U
Application number: CN202222973633.3U
Authority: CN
Inventors: 冯莉; 张晓红; 钱燕青; 李欢庆
Original assignee: Central Hospital Of Minhang District Shanghai
Current assignee: Central Hospital Of Minhang District Shanghai
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-05-05
Anticipated expiration: 2032-11-09

Abstract

The utility model provides an adjustable opening sampling forceps, which comprises a handle and an endoscope hose, wherein the endoscope hose is arranged at the right end of the handle, the right end of the endoscope hose is provided with a sampling forceps body, the sampling forceps body comprises a forceps barrel, forceps clamps, a connecting rope and a central column, two sides of the forceps barrel are provided with open slots, the middle sections of the forceps clamps which are intersected are hinged at two sides in the forceps barrel through a rotating column and a twisting spring, the two clamp bodies of the clamp are movable in the open grooves at the two sides, the right ends of the two clamp bodies of the clamp are fixedly connected to the left end of the center column through a connecting rope, an adjusting boss is arranged on the outer side of the middle section of the center column, an induction convex ring is axially and uniformly arranged on the inner wall of the clamp cylinder, and the right end of the center column passes through an endoscope hose through a stay cord and is connected to the right end of the handle; according to the utility model, the induction convex ring is added in the clamp cylinder of the sampling clamp body to be matched with the central column, so that the adjustment of the clamp opening is achieved, the controllability is strong, and the judgment operability is provided for an operator.

Description

Sampling forceps with adjustable opening

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to a sampling clamp capable of adjusting an opening, which is particularly used for a digestive endoscope.

Background

The sampling forceps under the digestive endoscope are matched with the endoscope, enter through the forceps channel holes of the gastrointestinal endoscope and are used for forceps to take the living tissue samples of the digestive tract and the respiratory tract, and are an indispensable tool for taking pathological specimens in the endoscopic examination; the conventional biopsy forceps consist of biopsy forceps petals, a connecting spring tube, a connecting steel wire, PE plastic coating and an operating handle, and are sent into a sampling position through a forceps channel hole under an endoscope, and the handle performs up-and-down pulling action to drive the forceps petals to open and close so as to sample tissues. According to different pathological demands, individual differences of patients, matching demands of sampling positions and equipment, the biopsy forceps have various characteristics, but the existing biopsy forceps only have some differences in the size, shape and thickness of forceps petals.

According to different sampling requirements in the clinic at present, a great part of sampling needs that two forceps petals of a biopsy forceps can control the opening size and the tissue depth of sampling when being opened; the opening size of the conventional biopsy forceps can only be sensed by the push-pull force of the handle, the accurate control cannot be realized, and the depth of sampling cannot be accurately controlled by the forward force of the endoscope and the forward pushing force of the biopsy forceps.

The patent application number 202123120218.5 is as follows: the utility model discloses a biopsy forceps capable of being adjusted in a rotating mode, which comprises a handle, a sliding handle, a traction rope and a forceps head, wherein the sliding handle is arranged on the handle in a sliding mode, a rotating mechanism is arranged in the sliding handle and comprises a rotating sleeve and a control handle, the control handle is connected to the outer side wall of the rotating sleeve, the rotating sleeve is sleeved on the handle and is connected with the sliding handle in a rotating mode, an adjusting hole through which the control handle passes is formed in the side wall of the sliding handle, a first connecting portion is arranged in the rotating sleeve, a yielding hole through which the first connecting portion passes is formed in the side wall of the handle, one end of the traction rope is connected with the first connecting portion, and the other end of the traction rope is connected with the forceps head. Compared with the prior art, the rotary adjusting device has a simple structure, can rotate and adjust the direction of the clamp head, and is convenient and quick to operate.

The above patent, although realizing the rotation adjustment of the jaw part, still cannot accurately control the opening size of the jaw, has poor controllability for operators and low use flexibility.

Disclosure of Invention

The utility model aims to solve the effects in the background art, and provides an adjustable opening sampling forceps.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides an adjustable open-ended sampling clamp, includes handle and scope hose, the scope hose is installed at the handle right-hand member, the sampling clamp body is installed to scope hose right-hand member, the sampling clamp body includes a pincers section of thick bamboo, pincers clamp, connecting rope and center post, open there is the opening in pincers section of thick bamboo both sides, the middle section that pincers clamp crossed passes through column spinner and hank spring and articulates both sides in a pincers section of thick bamboo, two clamp bodies of pincers clamp are movable in the opening of both sides, two clamp body right-hand members of pincers clamp are through connecting rope fixed connection at the center post left end, the center post middle section outside is provided with the regulation boss, pincers section of thick bamboo inner wall axial evenly is provided with the response bulge loop, the center post is located the external diameter of adjusting boss department and the internal diameter cooperation of pincers section of thick bamboo, the internal diameter size of response bulge loop is located between the internal diameter size of pincers section of thick bamboo and the external diameter size of adjusting boss, the center post right-hand member is passed through the stay cord hose through the stay cord and is connected to the handle right-hand member, the opening of pincers clamp drives the stay cord through the handle and pulls the center post and adjusts.

Preferably, the handle comprises a handle, a scale adjusting column and a telescopic column, the right end of the telescopic column is movably mounted in the handle through a pressure spring, the telescopic column stretches out leftwards, the scale adjusting column is sleeved outside the middle section of the telescopic column, an adjusting ring is mounted at the right end of the scale adjusting column, a plurality of scale rings are uniformly distributed on the left half part of the inner ring of the handle, the inner diameter of each scale ring is smaller than the outer diameter of the adjusting ring, the outer diameter of the adjusting ring is matched with the inner diameter of the handle, and the telescopic column drives the scale adjusting column to realize telescopic adjustment of controllable scales in the handle.

Preferably, the scale adjusting column surface is provided with scale marks.

Preferably, the scale interval of the scale adjusting column in the handle is matched with the interval of the central column in the induction convex ring.

Preferably, the elastic quantity of the pressure spring meets the expansion quantity required by the expansion column to pull the clamp to open and close.

Preferably, the outer diameter of the scale adjusting column is smaller than the outer diameter of the adjusting ring.

Preferably, the plurality of sensing convex rings and the scale ring are soft rubber rings.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the induction convex ring is added in the clamp cylinder of the sampling clamp body to be matched with the central column, so that the regulation of the clamp opening is realized, the controllability is strong, and the judgment operability is provided for an operator; meanwhile, in order to match with better and more visual opening adjustment at the sampling forceps body, the utility model is matched with the scale ring with the same interval at the handle to match with the interval adjustment of the central column in the induction convex ring, thus realizing the adjustment of the opening of the sampling forceps by the touch sense of the hand and the visual observation of eyes, having simple principle, the pressure spring rebound state in the handle pulls the telescopic column and the pull rope to drive the forceps holder to be in a clamping state, when the forceps holder is led into the sampling position through an endoscope channel, the size of the scale mark can be observed when the telescopic column is pulled at the handle position, the central column of the hand passes through the rubber induction convex ring, the light and slight vibration can be penetrated to the handle position, the same adjusting ring also passes through the scale ring, the forceps holder realizes the adjustment of the interval size, and the forceps holder can be continuously adjusted by adopting the same mode to achieve the required opening distance of the forceps holder.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a body of a sampling clamp in accordance with an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a handle in an embodiment of the utility model;

the embodiment of the utility model mainly comprises the following element symbols:

the hand shank-1, grip-11, scale ring-12, pressure spring-13, scale adjusting column-14, adjusting ring-15, scale mark-16, telescopic column-17, endoscope hose-2, pull rope-3, sampling forceps body-4, forceps barrel-41, notch-42, sensing convex ring-43, forceps holder-44, connecting rope-45, center column-46, adjusting boss-47.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1 to 3, an adjustable open-ended sampling forceps comprises a handle 1 and an endoscope hose 2, wherein the endoscope hose 2 is arranged at the right end of the handle 1, a sampling forceps body 4 is arranged at the right end of the endoscope hose 2, the sampling forceps body 4 comprises a forceps barrel 41, forceps jaws 44, a connecting rope 45 and a central column 46, two sides of the forceps barrel 41 are provided with a notch 42, a middle section of the forceps jaws 44 crossing is hinged to two sides in the forceps barrel 41 through a rotating column and a twisting spring, two clamp bodies of the forceps jaws 44 move in the notch 42 at two sides, the right ends of the two clamp bodies of the forceps jaws 44 are fixedly connected to the left end of the central column 46 through the connecting rope 45, an adjusting boss 47 is arranged at the outer side of the middle section of the central column 46, an inner wall of the forceps barrel 41 is axially and uniformly provided with an inductive convex ring 43, the inner diameter of the inductive convex ring 43 is positioned between the inner diameter of the forceps barrel 41 and the outer diameter of the adjusting boss 47, and the central column 46 is in the size of the diameter of the forceps barrel 41, and the right end of the forceps barrel 4 is pulled by the pulling rope 3 through the connecting rope 3 to the right end of the opening of the forceps handle 46, and the right end of the forceps handle 4 is pulled by the pulling rope 1 through the opening of the handle 4.

As shown in fig. 4, the handle 1 includes a grip 11, a scale adjusting column 14 and a telescopic column 17, the right end of the telescopic column 17 is movably mounted in the grip 11 through a pressure spring 13, the telescopic column 17 extends leftwards, the scale adjusting column 14 is sleeved outside the middle section of the telescopic column 17, an adjusting ring 15 is mounted at the right end of the scale adjusting column 14, a plurality of scale rings 12 are uniformly distributed on the left half part of the inner ring of the grip 11, the inner diameters of the plurality of scale rings 12 are smaller than the outer diameter of the adjusting ring 15, the outer diameter of the adjusting ring 15 is matched with the inner diameter of the grip 11, and the telescopic column 17 drives the scale adjusting column 14 to realize telescopic adjustment of controllable scales in the grip 11.

The surface of the scale adjusting column 14 is provided with scale marks 16.

The utility model achieves the adjustment of the opening of the clamp 44 by adding the induction convex ring 43 and the central column 46 in the clamp cylinder 41 of the sampling clamp body 4, has strong controllability and provides the operator with judging operability; meanwhile, in order to match with better and more visual opening adjustment of the sampling forceps body 4, the utility model matches with the scale ring 12 with the same interval at the handle 1 to match with the interval adjustment of the central column 46 in the induction convex ring 43, thus achieving the aim of controlling the opening adjustment of the sampling forceps from the touch sense of the hand and the visual observation of eyes, and having simple principle.

The scale interval of the scale adjusting column 14 in the grip 11 is matched with the interval of the central column 46 in the induction convex ring 43, so that the adjustment of the handle 1 is consistent with the adjustment and matching of the sampling forceps.

The amount of resilience of the pressure spring 13 is sufficient to provide the amount of telescoping required for the telescoping post 17 to pull the jaws 44 open and closed.

The outer diameter of the scale adjusting column 14 is smaller than that of the adjusting ring 15, so that the outer side of the scale adjusting column 14 is prevented from interfering with the scale ring 12, and controllable adjustment of the handle 1 is prevented from being affected.

The sensing convex rings 43 and the scale ring 12 are soft rubber rings.

When the utility model is used, after the clamp head is led into a sampling position through an endoscope channel, the size of a scale mark 16 can be observed while the telescopic column 17 is pulled by the position of the handle 1, after the central column 46 of the hand passes through a rubber sensing convex ring 43, the light and slight vibration can be dynamically penetrated to the position of the handle 1, the adjusting ring 15 also passes through a scale ring 12, the clamp 44 realizes the adjustment of a spacing size, and the adjustment is continued in the same way to achieve the required opening distance of the clamp 44.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. The utility model provides an adjustable open-ended sampling forceps, includes handle and scope hose, scope hose installs at the handle right-hand member, its characterized in that: the utility model provides a pair of inner tube, including inner tube hose, including the inner tube hose, the inner tube hose is connected to the inner tube hose, the sample tong body is installed at the inner tube hose right-hand member, the sample tong body includes a pincers section of thick bamboo, pincers clamp, connecting rope and center post, open the pincers section of thick bamboo both sides has the slot, the middle section of clamp crossing passes through the column spinner and the hinge is articulated in pincers section of thick bamboo both sides, two clamp bodies of clamp are movable in the slot of both sides, two clamp body right-hand members of clamp pass through connecting rope fixed connection at the center post left end, the center post middle section outside is provided with the regulation boss, pincers section of thick bamboo inner wall axial evenly is provided with the response bulge loop, the center post is located the external diameter cooperation of adjusting boss department and pincers section of thick bamboo, the internal diameter size of response bulge loop is located between the external diameter size of pincers section of thick bamboo and the regulation boss, the center post right-hand member passes the inner tube hose through the stay cord and is connected to the handle right-hand member, the opening of clamp drives stay cord through the handle and pulls the center post and adjusts.

2. An adjustable opening sampling forceps according to claim 1, wherein: the handle comprises a handle, a scale adjusting column and a telescopic column, wherein the right end of the telescopic column is movably arranged in the handle through a pressure spring, the telescopic column stretches out leftwards, the scale adjusting column is sleeved outside the middle section of the telescopic column, an adjusting ring is arranged at the right end of the scale adjusting column, a plurality of scale rings are uniformly distributed at the left half part of the inner ring of the handle, the inner diameter of each scale ring is smaller than the outer diameter of the adjusting ring, the outer diameter of the adjusting ring is matched with the inner diameter of the handle, and the telescopic column drives the scale adjusting column to realize telescopic adjustment of controllable scales in the handle.

3. An adjustable opening sampling forceps according to claim 2, wherein: and the surface of the scale adjusting column is provided with scale marks.

4. An adjustable opening sampling forceps according to claim 3, wherein: the scale interval of the scale adjusting column in the handle is matched with the interval of the central column in the induction convex ring.

5. The adjustable opening sampling forceps of claim 4, wherein: the elastic quantity of the pressure spring meets the expansion quantity required by the expansion column to pull the clamp to open and close.

6. The adjustable opening sampling forceps of claim 5, wherein: the outer diameter of the scale adjusting column is smaller than that of the adjusting ring.

7. The adjustable opening sampling forceps of claim 6, wherein: the sensing convex rings and the scale rings are soft rubber rings.