CN111494727A - A sterile specimen collector connected to a negative pressure suction device - Google Patents

Abstract

The invention relates to a sample aseptic collector connected to a negative pressure suction device, comprising a three-way, a filter tube and a double-way connector. A first switch valve is arranged between the third inlet and outlet, and a second switch valve is arranged between the first inlet and outlet and the second inlet and outlet. The filter tube includes a pipe cover inlet and outlet and a filter tube bottom inlet and outlet. The device includes a fourth inlet and a fifth inlet; the first inlet and outlet are connected to the arthroscopic suction device, the second inlet and outlet are connected to the inlet and outlet of the tube cover of the filter tube, the third inlet and outlet are connected to the waste liquid bucket, and the The fourth inlet and outlet are connected with the inlet and outlet at the bottom of the filter tube, and the fifth inlet and outlet are also connected with the waste liquid bucket.

Description

A sterile specimen collector connected to a negative pressure suction device

technical field

The invention relates to the technical field of medical devices, in particular to a sterile specimen collector connected to a negative pressure suction device.

Background technique

Currently, arthroscopic surgery is the first-line surgical treatment for some diseases in sports medicine and orthopaedics. These diseases include reconstruction after knee cruciate ligament rupture, knee synovial lesions, repair after knee meniscus injury, shoulder injury, etc. At present, the discarded tissue during the operation is mainly taken out through the original channel after arthroscopic clamping, and then the arthroscopic forceps are sent into the joint cavity through the skin opening to continue the operation. While this procedure increases the time and steps involved in the procedure, it also increases the likelihood of intra-articular infection.

In the prior art, most of the specimens are taken out directly from the entrance and exit of the endoscope, which is troublesome to operate and easily causes secondary infection. For example, the document CN201821392914.7 discloses an endoscopic pathological specimen collector, which collects specimens from different patients through a replaceable insert. However, this method cannot meet sterility requirements, and there may be cross-contamination of specimens between different patients. It is only suitable for pathological diagnosis, and cannot be used for autologous tissue reuse and cell separation.

Document CN201120403861.6 discloses a specimen collection device for excision under endoscope, which is mainly used for gastroscope. During the collection process, specimens are collected in different grids, and volume measurement cannot be performed.

Document CN201620352355.1 discloses a device for collecting finely divided specimens during surgery. The device cannot measure the volume of the collected specimens, and the specimens will continue to be impacted by liquid during the operation.

SUMMARY OF THE INVENTION

The present invention aims to provide an aseptic specimen collector connected with a negative pressure suction device, and the technical problem to be solved at least includes how to realize aseptic collection of tissue under the condition of avoiding repeated entry and exit of arthroscopic forceps into the opening.

In order to achieve the above purpose, the present invention provides a sterile specimen collector connected to a negative pressure suction device, comprising a tee, a filter tube and a double-way connector, wherein the tee includes a first inlet, a second inlet and a third outlet The inlet and outlet, a first switch valve is arranged between the first inlet and outlet and the third inlet and outlet, and a second switch valve is arranged between the first inlet and outlet and the second inlet and outlet. The two-way connector includes a fourth inlet and a fifth inlet; the first inlet and outlet are connected to the arthroscopic suction device, the second inlet and outlet are connected to the tube cover inlet and outlet of the filter tube, and the third inlet and outlet are connected to waste liquid. The fourth inlet and outlet are connected to the inlet and outlet at the bottom of the filter tube, and the fifth inlet and outlet are also connected to the waste liquid barrel.

The inlet and outlet of the tube cover are Luer ports.

The inlet and outlet at the bottom of the filter tube are Luer ports.

The filter pipe includes a threaded pipe cover, and the pipe cover is connected to one end of the filter pipe through threads.

The pipe cover inlet and outlet are arranged on the pipe cover.

A filter element is arranged inside the filter tube, and the inlet of the filter element is communicated with the inlet and outlet of the pipe cover; a filter screen is arranged at the outlet of the filter element.

A baffle plate is also arranged inside the filter element, and the baffle plate is connected to the inner side of the tube cover, and is used for buffering the liquid and samples entering the filter element through the inlet and outlet of the tube cover on the tube cover.

A volume scale is marked on the tube wall of the filter element.

The filter tube wall of the filter tube is marked with a volume scale and a marking coating for patient information recording.

The filter tube also includes a plurality of Luer joints, and the Luer joints are used to respectively close the inlet and outlet of the tube cover and the inlet and outlet of the bottom of the filter tube after the specimen is collected.

beneficial effect

Compared with the prior art, the beneficial effects of the present invention are: the sterile specimen collector connected to the negative pressure suction device of the present invention is a sterile, disposable product with low cost. The filtration realizes the collection of tissue specimens, thereby avoiding the direct taking out of the specimens from the entrance and exit of the endoscope, which can avoid the possibility of cross-contamination that may exist in different patients in the prior art. In addition to being used for the collection of pathological specimens, the sterile environment in the present invention ensures that the collected specimens can also be used for the reuse of autologous tissue or the separation of cells in the tissue. The side wall of the filter element of the sterile specimen collector of the present invention contains a scale, which can measure the volume of the specimen. At the same time, the baffle on the filter cover can buffer the pressure of the liquid in the suction tube to protect the specimen.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the specification. They are used to explain the technical solutions of the present invention together with the specific embodiments of the present application, and do not limit the technical solutions of the present invention.

FIG. 1 is a schematic structural diagram of the tee according to the present invention.

FIG. 2 is a schematic structural diagram of the filter tube of the present invention.

FIG. 3 is a schematic view of the structure of the double-way connector of the present invention.

Detailed ways

The present invention is described in more detail below to facilitate understanding of the present invention.

As shown in FIG. 1 to FIG. 3 , the sterile specimen collector connected to the negative pressure suction device according to the present invention includes a tee 1 , a filter tube 2 and a double-way connector 3 , and the tee 1 includes a first inlet and outlet. 111, the second inlet and outlet 112 and the third inlet and outlet 13, between the first inlet and outlet 111 and the third inlet and outlet 13 is provided with a first switch valve 11, between the first inlet and outlet 111 and the second inlet and outlet 112 is provided with a second switch valve 12, The filter tube 2 includes a tube cover inlet and outlet 22 and a filter tube bottom inlet and outlet 27, the double-pass connector 3 includes a fourth outlet 31 and a fifth outlet 32; the first outlet 111 is connected to the arthroscopic suction device ( That is, a negative pressure suction device), the second outlet 112 is connected to the pipe cover inlet 22 of the filter tube 2, the third outlet 13 is connected to the waste liquid bucket, and the fourth outlet 31 is connected to the filter tube bottom outlet 27. , the fifth port 32 is also connected to the waste liquid tank.

The tube cover inlet and outlet 22 are Luer ports.

The inlet and outlet 27 at the bottom of the filter tube are Luer ports.

The filter pipe 2 includes a threaded pipe cover 21 , and the pipe cover 21 is connected to one end of the filter pipe 2 through threads.

The pipe cover inlet 22 is provided on the pipe cover 21 .

The filter tube 2 is provided with a filter core 24, and the inlet of the filter core 24 is communicated with the pipe cover inlet and outlet 22; the outlet of the filter core 24 is provided with a filter screen 25.

The filter element 24 is also provided with a baffle plate 23. The baffle plate 23 is connected to the inner side of the tube cover 21, and is used for the liquid and specimens entering the filter core 24 through the tube cover inlet and outlet 22 on the tube cover 21. buffer.

A volume scale is marked on the pipe wall of the filter element 24 .

The filter tube wall 26 of the filter tube 2 is marked with a volume scale and a marking coating for patient information recording.

The filter tube 2 further includes a plurality of Luer connectors 28, and the Luer connectors 28 are used to respectively close the tube cover inlet and outlet 22 and the filter tube bottom inlet 27 after the specimen is collected.

In a preferred embodiment, the filter core 24 is disposed inside the filter tube wall 26 along the axial direction of the filter tube; the baffle 23 is arc-shaped and faces the filter core 24 from the tube cover 21 The inside of the filter element extends obliquely; the filter element 24 is a spiral filter element, and the filter screen 25 is divided into different pore sizes and specifications. The filter core 24 and the filter screen 25 can be nested in the tube body of the filter tube 2 , and at the same time, it is ensured that the tube cover 21 is not affected to tighten the nozzle of the filter tube 2 .

When collecting the specimen, the sterile specimen collector connected to the negative pressure suction device according to the present invention closes the first switch valve 11 and opens the second switch valve 12 . The specimen reaches the baffle 23 through the inlet and outlet 22 of the tube cover of the filter tube 2 along with the saline flushing liquid. The baffle 23 acts as a buffer for the liquid and the specimen, and then the specimen reaches the filter screen 25 and stays in the filter tube, and the liquid passes through the filter tube. The bottom port 27 reaches the double-way connector 3 and finally enters the waste liquid bucket.

After the specimen is collected, the first switch valve 11 is opened, and the second switch valve 12 is closed. The liquid enters the waste liquid tank through the third outlet 13 of the tee 1 .

After the specimen is collected, rotate the tee 1 to separate the second inlet 112 from the filter tube 2, rotate the fourth inlet 31 of the double-way connector to separate it from the body of the filter tube 2, and finally use the luer connector 28 to separate the filter tube 2. The cover port 22 and the filter tube bottom port 27 are closed.

The preferred embodiments of the present invention have been described above, but are not intended to limit the present invention. Modifications and variations of the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.

Claims (10)

1. A specimen sterile collector connected with a negative pressure aspirator is characterized by comprising a tee joint, a filter pipe and a two-way connector, wherein the tee joint comprises a first inlet, a second inlet and a third inlet, a first switch valve is arranged between the first inlet and the third inlet, a second switch valve is arranged between the first inlet and the second inlet, the filter pipe comprises a pipe cover inlet and a filter pipe bottom inlet, and the two-way connector comprises a fourth inlet and a fifth inlet; the first access and exit are connected with an arthroscope aspirator, the second access and exit are connected with the access and exit of the tube cover of the filter tube, the third access and exit are connected with a waste liquid barrel, the fourth access and exit are connected with the access and exit at the bottom of the filter tube, and the fifth access and exit are also connected with the waste liquid barrel.

2. The specimen sterile collector connected with the negative pressure aspirator according to claim 1, wherein the tube cap inlet and outlet is a luer.

3. The sterile specimen collector connected with a negative pressure aspirator according to claim 1, wherein the inlet and outlet at the bottom of the filter tube is a luer.

4. The specimen sterile collector of claim 1, wherein the filter tube comprises a threaded cap that is threadably attached to an end of the filter tube.

5. The specimen sterile collector connected to the negative pressure aspirator according to claim 4, wherein the tube cap inlet/outlet is provided on the tube cap.

6. The sterile specimen collector connected with the negative pressure aspirator according to claim 5, wherein a filter element is arranged inside the filter tube, and an inlet of the filter element is communicated with an inlet and an outlet of the tube cover; a filter screen is arranged at the outlet of the filter core.

7. The sterile specimen collector connected with the negative pressure aspirator according to claim 5, wherein a baffle is further arranged inside the filter element, and the baffle is connected to the inner side of the tube cover and is used for buffering liquid and specimens entering the filter element through the tube cover inlet and outlet on the tube cover.

8. The sterile specimen collector connected with the negative pressure aspirator according to claim 1, wherein the tube wall of the filter element is marked with volume scales.

9. The sterile specimen collector connected with the negative pressure aspirator according to claim 1, wherein the wall of the filter tube is marked with volume scales and a marking coating for patient information recording.

10. The specimen sterile collector connected with the negative pressure suction apparatus according to claim 1, wherein the filter tube further comprises a plurality of luer fittings for respectively closing the tube cover inlet and the filter tube bottom inlet and the outlet after the specimen is collected.

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