CN212661779U

CN212661779U - Novel biopsy cap suitable for endoscope

Info

Publication number: CN212661779U
Application number: CN202020676810.XU
Authority: CN
Inventors: 张文辉; 王艳玲; 马传辉; 李敬
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-03-09
Anticipated expiration: 2030-04-28

Abstract

The utility model provides a novel biopsy cap suitable for an endoscope, which is detachably arranged on the endoscope, the endoscope comprises a forceps opening of an endoscope operation part, a water feeding opening and an insertion part biopsy channel, wherein the forceps opening is communicated with the water feeding opening, the common output port of the forceps opening is communicated with the biopsy channel, arc convex grooves are uniformly distributed on the biopsy channel, and the arc convex grooves are water guide grooves; the extending end of the water feeding port is a pagoda-shaped interface and is connected with the water feeding device through a hose; the extending end of the forceps opening is a biopsy forceps inlet channel, wherein an anti-overflow device is arranged in the forceps opening, so that water can be ensured not to leak from the forceps opening while water is delivered. The biopsy forceps can be matched with the anti-overflow device to prevent leakage, the front section of the biopsy forceps is mostly thin and can pass through the anti-overflow device without obstruction, and the rear section of the biopsy forceps is thick and can be tightly attached to the opening of the anti-overflow device. The utility model discloses can not only prevent that the liquid in the body cavity is excessive, guarantee operator's safe in utilization, can also send water in the biopsy, very big make things convenient for the operation.

Description

Novel biopsy cap suitable for endoscope

Technical Field

The utility model relates to a medical electron endoscopy field, concretely relates to novel biopsy cap suitable for endoscope.

Background

An electronic endoscope is used as a common examination device of a digestive system, and is used for carrying out operations such as examination, biopsy and operation on a plurality of patients, however, when biopsy is carried out under the endoscope, if the visual field of a focus part in a body cavity is not clear due to mucus, water feeding and flushing are needed, at the moment, a biopsy forceps is required to be taken out from an endoscope biopsy channel, then a water feeding device is connected with a forceps port, and a water feeding function is realized by utilizing a forceps channel. However, this operation is complicated, and the water feeding operation cannot be performed at the same time as the biopsy, and the position of the lens may be changed by reinserting the biopsy forceps, so that the lens is no longer aligned with the lesion position, and the posture of the endoscope needs to be readjusted, which is time-consuming and labor-consuming.

Therefore, many endoscope manufacturers increase an auxiliary water supply pipeline, namely, a water supply channel is added in the original endoscope insertion tube, but the diameter of the endoscope insertion tube is further increased due to the design, and the examination of a patient is painful. Therefore, there is a need for a new endoscope and biopsy forceps that can perform both water feeding and biopsy simultaneously without increasing the diameter of the endoscope.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a novel biopsy cap suitable for endoscope can realize sending water when endoscope biopsy operation, the very big operation that has made things convenient for to can effectively prevent water leakage and the internal liquid of coelom excessive, guarantee operator's personal safety.

The utility model provides a novel biopsy cap suitable for endoscope, demountable installation is on the endoscope, the endoscope includes endoscope operation portion, endoscope portion of inserting and endoscope leaded light plug portion, the endoscope portion of inserting is provided with the biopsy channel, the biopsy cap sets up on endoscope operation portion, the biopsy cap includes pincers mouth, send the mouth of a river, endoscope operation portion respectively with endoscope portion of inserting, endoscope leaded light plug portion are linked together, the pincers mouth is linked together with sending the mouth of a river, forms unified output port, output port and biopsy channel intercommunication.

Preferably, the cross section of the biopsy channel is in the shape of a circular ring and arc-shaped convex grooves uniformly distributed on the circular ring.

Preferably, an anti-overflow device is arranged inside the forceps opening.

Preferably, the anti-overflow device is a cone-shaped elastic body with a flange, the upper end of the cone-shaped elastic body is thicker in diameter, the lower end of the cone-shaped elastic body is thinner in diameter, and a hole is formed in the central axis.

Preferably, the inner wall of the pincer opening is provided with two annular positioning grooves for being matched with and installed on a flange of the anti-overflow device.

Preferably, the extending end of the water delivery port is a pagoda-shaped pipe connector used for connecting a hose of a water delivery device.

Preferably, also comprisesThe biopsy forceps comprise a plurality of biopsy forceps which are connected in sequenceA small diameter section, a large diameter section and an operation part, wherein the small diameter section is an elongated pipeline inserted into the biopsy channel, and the large diameter section has a diameter equivalent to the diameter of the hole of the anti-overflow device.

The utility model discloses a beneficial effect:

the utility model provides a pair of novel biopsy cap suitable for endoscope can realize sending the water operation when the biopsy, and easy operation is convenient, because of the endoscope size does not change, can not increase patient's inspection misery to can prevent that liquid or gaseous edge biopsy channel from spilling over in vitro when the biopsy operation, increased the security of operation.

Drawings

Fig. 1 is a schematic view of an endoscope according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a pincer opening and a water feeding opening of the embodiment of the present invention along the axial direction;

FIG. 3 is a cross-sectional view of a biopsy channel of an insertion portion of an endoscope of the present invention;

FIG. 4 is a schematic view of a biopsy forceps used with the forceps opening of the present invention;

fig. 5 is a schematic structural view of an operation portion according to a second embodiment of the present invention;

FIG. 6 is a cross-sectional view of the second jaw and the water feeding port of the embodiment of the present invention along the axial direction;

FIG. 7 is a sectional view of the pincer opening and the water feeding opening of the third embodiment of the present invention along the axial direction;

fig. 8(a) (b) are schematic cross-sectional views of the sealing cap of the pliers opening and the water feeding opening of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and embodiments.

Example one

As shown in fig. 1 to 4, the present embodiment provides a novel biopsy cap suitable for an endoscope, the endoscope includes an endoscope operation portion 1, an endoscope insertion portion 2 and an endoscope light guide plug portion 3, the endoscope insertion portion 2 is provided with a biopsy channel 6, the biopsy cap is disposed on the endoscope operation portion 1, the biopsy cap includes a forceps opening 501 and a water feeding opening 502, the endoscope operation portion 1 is respectively communicated with the endoscope insertion portion 2 and the endoscope light guide plug portion 3, the forceps opening 501 is communicated with the water feeding opening 502 to form a uniform output port 508, and the output port 508 is communicated with the biopsy channel 6.

The biopsy cap of this embodiment is detachably mounted on the endoscope, and including forceps mouth 501, water feeding mouth 502, anti-overflow device 503, can realize the biopsy and carry out the water feeding operation simultaneously, easy operation is convenient, because of endoscope size does not change, can not increase patient's inspection misery to can prevent that liquid or gaseous in the body cavity from overflowing outside along the biopsy channel when the biopsy operation, increased the security of operation.

Referring to fig. 1, the overall layout of the endoscope in this embodiment is that a forceps opening 501 and a water supply opening 502 are arranged on the operation portion, and extend out to the outer end, and the sectional view along the axis is shown in fig. 2, the forceps opening 501 is a metal pipeline, the outer layer is wrapped by a plastic shell integrally formed with the operation portion, and the metal inner wall is provided with two annular positioning grooves 506. The overflow preventing device 503 is made of an elastomer (such as TPU) through injection molding, and has certain elasticity. The overflow preventing device 503 is cone-shaped, the upper part has a larger diameter and a flange, the lower part has a smaller diameter, a hole 509 is arranged in the middle, the upper flange part is matched and assembled with the annular positioning groove 506, and the diameter of the flange is slightly larger than that of the annular positioning groove, so that the flange surface 507 can be tightly attached to the positioning groove surface 506. The extended end of the water supply hole 502 is designed into a pagoda shape and is connected with a water supply hose, wherein the water supply device is provided with a one-way valve to ensure that the liquid cannot flow back into the water supply device. The other end of the water supply hole 502 is communicated with the pincer opening 501, the communication position is below the anti-overflow device, and the water supply hole 502 and the pincer opening 501 can be integrally formed by casting and the like. The extended end of the clamp opening 501 is provided with a groove 504 to facilitate the assembly with the cap. The other end of the forceps opening is fixed to the operation portion main body frame by means of bolts or welding, and is communicated with the insertion portion biopsy channel 6. The biopsy channel is about 1.5m long and is a plastic extruded pipeline (such as teflon material), the cross section of the biopsy channel is shaped as shown in fig. 3, four arc bulges (or one or more arc bulges) are uniformly distributed on the biopsy channel, and the structure is used for guiding the water to flow, so that the water can be ejected more smoothly at the tip of the tail end of the endoscope.

Referring to fig. 4, the biopsy forceps 7 used with the forceps opening includes a small diameter section 701, a large diameter section 702 and an operation portion 703, wherein the small diameter section 701 is an elongated tube inserted into the biopsy channel, and has a length corresponding to the length of the biopsy channel, about 1.5m, and a diameter slightly smaller than the minimum diameter of the opening 509 of the overflow preventing device 503 in the forceps opening, typically less than 3mm, so as to ensure that the small diameter section can be inserted into the biopsy channel without any obstacle. The large diameter section 702 is a flexible tube with a length of about 20cm, and the diameter of the large diameter section is equivalent to the maximum diameter of the opening 509 of the anti-overflow device 503 in the jaw opening, and is generally more than 4 mm. The small diameter section 701 and the large diameter section 702 are connected in a transition manner with gradually changing diameters. The operation unit 703 is a part for controlling opening and closing of the bioptome, and has the same principle as that of a general bioptome. The small diameter section 701 can be inserted into the biopsy channel without any obstruction, when the small diameter section 701 is inserted completely, the end of the biopsy forceps just extends out of the end of the forceps channel, at the moment, the biopsy forceps are inserted continuously, the large diameter section 702 is in contact with the opening 509 of the overflow preventing device 503, and due to the elastic effect of the overflow preventing device, the opening 509 tightly wraps the large diameter section 702 to play a role in sealing.

Referring to fig. 8(a), (b), the forceps mouth cover cap 9 and the water feeding port cover cap 10 are made of elastomer (such as TPU), the lower

end groove structures

903 and 904 of the forceps mouth cover cap 9 are matched with the forceps mouth groove 504, and the water feeding port cover cap 10 is directly sleeved on the pagoda-shaped interface.

Example two

Referring to fig. 5 and 6, the present embodiment differs from the first embodiment in that: the clamp opening 501 and the water feeding opening 502 are independently arranged on the operation part in parallel, the clamp opening 501 and the water feeding opening 502 are made of metal materials, are made into independent parts respectively through casting and other modes, are connected with the main body frame of the operation part through bolts or welding, and are wrapped with plastic layers integrally formed with the operation part. The forceps opening 501 and the water feeding opening 502 are respectively communicated with the biopsy channel 6 through pipelines.

EXAMPLE III

Referring to fig. 7, the present embodiment is different from the above embodiments in that: the pincer port 801 and the water delivery port 802 communicate at a position below the anti-overflow device, but their common output end is separate from the operating portion and is a disposable component that can be assembled and disassembled. The output end groove 808 of the endoscope can be matched and assembled with the original forceps opening of the endoscope. The clamp mouth 801 is made of elastomer (such as TPU), the water feeding port 802 is made of hard plastic (such as ABS), the front end of the clamp mouth is in a pagoda-shaped structure, and the water feeding port 802 and the clamp mouth 801 can be connected in a plastic welding mode. The overflow prevention means 803 is integrally formed with the jaw opening 801, and is also made of an elastomer material, and has an opening in the middle. The

jaw opening caps

804 and 805 are formed integrally with the jaw opening 801, and the nozzle cap 806 is formed separately from an elastic material.

In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel biopsy cap suitable for endoscope, demountable installation on the endoscope, its characterized in that, the endoscope includes endoscope operation portion (1), endoscope portion of inserting (2) and endoscope leaded light plug portion (3), endoscope portion of inserting (2) is provided with biopsy channel (6), the biopsy cap sets up on endoscope operation portion (1), the biopsy cap includes pincers mouth (501), send mouth of a river (502), endoscope operation portion (1) respectively with endoscope portion of inserting (2), endoscope leaded light plug portion (3) are linked together, pincers mouth (501) are linked together with sending mouth of a river (502), form unified output port (508), output port (508) and biopsy channel (6) intercommunication.

2. The new biopsy cap for endoscopes according to claim 1, characterized in that the biopsy channel (6) has a cross-sectional shape of a ring (602) and arc-shaped tongues (601) evenly distributed on the ring.

3. The new biopsy cap for endoscopes according to claim 1, characterized in that an anti-overflow device (503) is provided inside the forceps mouth.

4. The new biopsy cap for endoscope according to claim 3 characterized by that, the overflow prevention device is cone shaped elastomer with flange (507), its upper end diameter is thicker and its lower end diameter is thinner, and it has hole (509) on the central axis.

5. The biopsy cap according to claim 4, wherein the inner wall of the forceps opening is provided with two annular positioning grooves (506) for fitting with a flange (507) of an anti-overflow device.

6. The new biopsy cap for endoscope according to claim 1, characterized in that the water delivery port (502) has a protruding end with a pagoda-shaped tube interface (505) for connection to a water delivery device hose.

7. The novel biopsy cap suitable for use with an endoscope according to claim 4, further comprising a biopsy forceps (7), wherein the biopsy forceps (7) comprises a small diameter section (701), a large diameter section (702) and an operation part (703) which are connected in sequence, wherein the small diameter section (701) is an elongated pipeline inserted into the biopsy channel, and the large diameter section (702) has a diameter corresponding to the diameter of the hole (509) of the anti-overflow device (503).