CN216535368U

CN216535368U - Suction device for tissues in bladder

Info

Publication number: CN216535368U
Application number: CN202123008446.3U
Authority: CN
Inventors: 邹义华; 陈晓峰; 张威
Original assignee: First Peoples Hospital of Chenzou
Current assignee: First Peoples Hospital of Chenzou
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-17
Anticipated expiration: 2031-12-01

Abstract

The utility model relates to the technical field of medical appliances, in particular to a suction device for tissues in a bladder, which comprises a needle cylinder, a conduit and a conical head, wherein the conduit comprises a mounting part and a bending part which are connected with each other, the mounting part and the bending part are arranged in an obtuse angle, the mounting part is communicated with the needle cylinder, the conical head is of a hollow structure with two open ends, the conical head is mounted on the bending part and communicated with the bending part, the conical head is used for abutting against tumor tissues, and the needle cylinder is used for extracting air in the conical head through the conduit so that the tumor tissues are sucked into the conical head. The utility model forms a negative pressure environment in the conical head by a syringe suction mode, and sucks the tumor tissue in the bladder into the conical head by negative pressure, thereby achieving the effect of quickly and smoothly taking out the tumor tissue.

Description

Suction device for tissues in bladder

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a suction device for tissues in a bladder.

Background

Bladder cancer is one of the most common malignant tumors in urology surgery of I, non-muscle invasive bladder cancer accounts for 70% of initial bladder cancer, and transurethral cystectomy with a cystoscope is the main treatment method of the non-muscle invasive bladder cancer, and the resection method comprises a block resection method and a whole block resection method. Compared with the block excision method, the whole block excision method can excise more detrusor tissues in the deep layer of the tumor basal part, can obtain higher-quality pathological specimens, and further obtain more accurate pathological diagnosis and postoperative diagnosis and treatment schemes. However, due to the limited diameter of the cystoscope, the larger tumor tissue excised in one piece is often difficult to be completely removed and still needs to be removed after being cut in parts, thereby destroying the integrity of the specimen and possibly causing the bias of pathological diagnosis.

Disclosure of Invention

The utility model provides a suction device for tissues in a bladder, which can easily and smoothly suck out a whole tumor tissue in the bladder.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a suction device for tissues in a bladder, which comprises a needle cylinder, a catheter and a conical head, wherein the catheter comprises a mounting part and a bending part which are connected with each other, the mounting part and the bending part are arranged in an obtuse angle mode, the mounting part is communicated with the needle cylinder, the conical head is of a hollow structure with two open ends, the conical head is mounted on the bending part and communicated with the bending part, the conical head is used for abutting against tumor tissues, and the needle cylinder is used for extracting air in the conical head through the catheter so that the tumor tissues are sucked into the conical head.

Furthermore, a communicating hole is formed in the front end of the needle cylinder, the diameter of the communicating hole is 9-10.5mm, the mounting part is arranged in the communicating hole, and the interior of the needle cylinder is communicated with the mounting part; and a sealing structure is arranged between the mounting part and the needle cylinder.

Further, the angle between the mounting part and the bending part is 140-155 degrees.

Further, the length of the mounting part is 11.5-13mm, and the length of the bending part is 7.5-9 mm.

Furthermore, conical head cover is located the kink, the outside of conical head is provided with the sealing washer, the sealing washer is used for the conical head is fixed to the kink.

Furthermore, the length of the conical head is 1.5-3mm, the diameter of the bent part is 9-10.5mm, and the diameter of one end of the conical head, which is far away from the bent part, is 5.5-6.5 mm.

Further, the installation part and the bending part are integrally formed through injection molding.

Furthermore, the outer side of one end of the conical head, which is far away from the bending part, is provided with an arc surface.

The utility model has the beneficial effects that: the utility model forms a negative pressure environment in the conical head by a syringe suction mode, and sucks the tumor tissue in the bladder into the conical head by negative pressure, thereby achieving the effect of quickly and smoothly taking out the tumor tissue.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic view of the bit of the present invention.

Reference numerals: the device comprises a needle cylinder, a guide pipe, a conical head, a communicating hole, a push handle, a piston, a cylinder, a mounting part, a bent part, a cambered surface and a sealing ring, wherein the needle cylinder is 1, the guide pipe is 2, the conical head is 3, the communicating hole is 11, the push handle is 12, the piston is 13, the cylinder is 14, the mounting part is 21, the bent part is 22, and the cambered surface is 31 and the sealing ring is 32.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.

As shown in fig. 1 and 2, the suction device for tissues in bladder provided by the present invention comprises a needle cylinder 1, a catheter 2 and a conical head 3, wherein the catheter 2 comprises a mounting portion 21 and a bending portion 22 which are connected with each other, the mounting portion 21 and the bending portion 22 form an obtuse angle, the mounting portion 21 is communicated with the needle cylinder 1, the conical head 3 is a hollow structure with two open ends, the conical head 3 is mounted on the bending portion 22 and communicated with the bending portion 22, the conical head 3 is used for abutting against tumor tissues, and the needle cylinder 1 is used for extracting air inside the conical head 3 through the catheter 2 so as to suck the tumor tissues into the conical head 3.

In actual use, the syringe 1 comprises a barrel 14, a push handle 12 and a piston 13, the mounting part 21 is communicated with the barrel 14, and the piston 13 is movably arranged in the barrel 14 and is abutted against the inner side wall of the barrel 14, so that air leakage is prevented; the pushing handle 12 is connected to the piston 13 for controlling the piston 13 to move back and forth in the cylinder 14.

Namely, the use mode of the utility model is as follows: after the whole bladder tumor is cut off, the front end of the inner sheath is aligned to the cut tumor tissue in the bladder under the direct vision of an endoscope, then the obturator is withdrawn, the conical head 3 is hermetically connected with the inner sheath, and then the medical assistant sucks the needle cylinder 1, and the whole tissue in the bladder (namely the tumor tissue) is sucked out in a negative pressure mode, so that the sucking effect is achieved.

In addition, the utility model can also extract blood clots in the bladder, thereby achieving the cleaning effect.

In this embodiment, the front end of the syringe 1 is provided with a communication hole 11, the diameter of the communication hole 11 is 9-10.5mm, the mounting part 21 is arranged in the communication hole 11, and the inside of the syringe 1 is communicated with the mounting part 21; a seal (not shown) is provided between the mounting portion 21 and the cylinder 1.

During the in-service use, seal structure can be by setting up in the boss of installation department 21 lateral wall and set up in the recess of intercommunicating pore 11 inside wall and constitute, perhaps directly adopts the sealing ring to seal to guarantee can not take place gas leakage phenomenon between syringe 1 and the installation department 21, guaranteed the suction effect.

In the present embodiment, the angle between the mounting portion 21 and the bending portion 22 is 140 ° and 155 °. That is, the obtuse angle is formed between the mounting portion 21 and the bending portion 22, so that when the syringe 1 is placed horizontally, the bending portion 22 can tilt to smoothly point to the corresponding position of the bladder, and the use of the utility model is more in line with the laws of human mechanics, thereby enabling the operation of medical assistants to be more convenient and stable.

In this embodiment, the length of the mounting portion 21 is 11.5-13mm, and the length of the bending portion 22 is 7.5-9 mm. The installation part 21 and the bending part 22 are arranged in the length, so that the strength of the installation part and the bending part is ensured, namely, the installation part and the bending part are not deformed by the oppression of the internal tissues of the patient during use, and the positioning is convenient.

In this embodiment, the conical head 3 is sleeved on the bent portion 22, and a sealing ring 32 is disposed on an outer side of the conical head 3, and the sealing ring 32 is used to fix the conical head 3 to the bent portion 22. The sealing ring 32 is used for tightly hooping the conical head 3 on the bending part 22 to ensure that the conical head 3 and the bending part 22 cannot be separated from each other, and air leakage cannot occur between the conical head 3 and the bending part 22, so that tumor tissue can be more reliably sucked.

In this embodiment, the length of the conical head 3 is 1.5-3mm, the diameter of the bent portion 22 is 9-10.5mm, and the diameter of the end of the conical head 3 away from the bent portion 22 is 5.5-6.5 mm. The cone is similar to a truncated cone, that is, the diameter of the bottom of the cone head 3 is adapted to the diameter of the bending part 22, and the diameter of the head is enough to ensure that the taken tumor cells have enough integrity for later sample reservation and analysis.

In the present embodiment, the mounting portion 21 and the bending portion 22 are integrally formed by injection molding, that is, the connection between the mounting portion 21 and the bending portion 22 is very firm, so as to avoid separation.

In this embodiment, an outer side of one end of the conical head 3 away from the bending portion 22 has an arc surface 31, so that the conical head 3 does not puncture tumor tissue when colliding with the tumor tissue.

That is, the present embodiment can extract the tumor tissue with a length of about 8mm to 25mm by means of suction, and the tumor tissue with a length of less than 8mm can be washed away by water.

Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. An aspiration device for tissues within the bladder, comprising: including cylinder, pipe and conical head, the pipe includes interconnect's installation department and kink, the installation department with the kink is the obtuse angle setting, the installation department with the cylinder intercommunication, conical head is both ends open-ended hollow structure, conical head install in the kink and with kink intercommunication, conical head is used for contradicting with tumour tissue, the cylinder warp the pipe is used for extracting the inside air of conical head is so that tumour tissue is inhaled in the conical head.

2. The aspiration device of the tissues inside the bladder of claim 1, characterized in that: the front end of the needle cylinder is provided with a communicating hole, the diameter of the communicating hole is 9-10.5mm, the mounting part is arranged in the communicating hole, and the interior of the needle cylinder is communicated with the mounting part; and a sealing structure is arranged between the mounting part and the needle cylinder.

3. The aspiration device of the tissues inside the bladder of claim 1, characterized in that: the angle between the installation part and the bending part is 140-155 degrees.

4. The aspiration device of the tissues inside the bladder of claim 1, characterized in that: the length of the installation part is 11.5-13mm, and the length of the bending part is 7.5-9 mm.

5. The aspiration device of the tissues inside the bladder of claim 1, characterized in that: the conical head is sleeved on the bent portion, a sealing ring is arranged on the outer side of the conical head, and the sealing ring is used for fixing the conical head to the bent portion.

6. The aspiration device of the tissues inside the bladder of claim 1, characterized in that: the length of the conical head is 1.5-3mm, the diameter of the bent part is 9-10.5mm, and the diameter of one end of the conical head, which is far away from the bent part, is 5.5-6.5 mm.

7. The aspiration device of the tissues inside the bladder of claim 1, characterized in that: the installation department with the kink is through moulding plastics integrated into one piece.

8. The aspiration device of tissues inside the bladder according to claim 1, characterized in that: the outer side of one end of the conical head, which is far away from the bending part, is provided with an arc surface.