A cell brush for pleural brushing and a method of use thereof

Abstract

The invention discloses a cell brush for pleural brushing and a method for using the same, relates to the technical field of medical devices, and solves the problem that there is currently no cell brush specifically used for pleural brushing in the field. A few literature reports use bronchoscope cell brushes, which have the problems of being too long, not matching with existing pleural biopsy syringes, being difficult to send out and retract, and being prone to artificial pneumothorax. The main points of the technical solution are: comprising a sleeve and a needle core plugged into the sleeve, and also comprising a sealing tube and a cell brush body movably connected to the sealing tube, wherein the sealing tube is sealedly connected to the sleeve; a cell brush head is provided at one end of the cell brush body, and a cell brush handle is provided at the other end; a clamping body is fixedly connected to the end of the sealing tube close to the cell brush handle, and the cell brush body is movably connected to the clamping body, which has the effects of making the sending out and retracting of the cell brush simple, facilitating pleural brushing, increasing the number of tumor cells in pleural effusion, and improving the diagnostic positive rate of malignant effusion.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a cell brush for pleural brushing and a use method thereof. Background Art

[0002] Pleural effusion exfoliative cytology is a widely used examination method in the diagnosis of malignant pleural effusion; the number of tumor exfoliated cells in pleural effusion is the key limiting factor for the positive diagnosis rate of malignant pleural effusion.

[0003] Currently, there is no cell brush specifically for pleural brushing in the field of medical devices. The few literature reports on pleural brushing generally use a disposable fiber bronchoscope cell brush, which is inserted into the chest cavity through the core of a pleural biopsy needle for pleural brushing.

[0004] The existing pleural brushing examination has the following defects:

[0005] 1. The cell brush of the disposable fiber bronchoscope is too long and inconvenient for practical operation;

[0006] 2. The disposable fiber bronchoscope brush needs to be matched with the existing pleural biopsy sleeve, otherwise it cannot enter the pleural cavity;

[0007] 3. The cell brush is difficult to send out and retract, which may easily lead to artificial pneumothorax. Summary of the invention

[0008] The purpose of the present invention is to provide a cell brush for pleural brushing, which makes the sending and retracting of the cell brush simple, facilitates pleural brushing, increases the number of tumor cells in pleural effusion, and improves the diagnostic positive rate of malignant effusion.

[0009] The above technical objectives of the present invention are achieved through the following technical solutions: a cell brush for pleural brush examination, comprising a sleeve and a needle core plugged into the sleeve, and also comprising a sealing tube and a cell brush body movably connected to the sealing tube, the sealing tube being sealed and connected to the sleeve; a cell brush head is provided at one end of the cell brush body, and a cell brush handle is provided at the other end; a clamping body is fixedly connected to the end of the sealing tube close to the cell brush handle, and the cell brush body is movably connected to the clamping body.

[0010] By adopting the above technical scheme, the sealing tube and the sleeve are sealed and connected to prevent outside air from entering the pleural cavity, thereby reducing the occurrence of artificial pneumothorax during pleural brushing. The cell brush handle and the clamping body are used to simplify the operation of sending out and retracting the cell brush. This facilitates pleural brushing, increases the number of tumor cells in pleural effusion, and improves the diagnostic positive rate of malignant pleural effusion.

[0011] The present invention is further configured as follows: a first card body is provided at the end of the needle core, a card slot is provided at the end of the sleeve for the first card body to be engaged; and a second card body is provided at the end of the sealing tube close to the clamping body to be engaged with the card slot.

[0012] By adopting the above technical solution, the first card body and the second card body are connected with the card slot to avoid the situation where the needle core and the sealing tube are completely placed in the sleeve, so that the installation and removal operations of the needle core and the sealing tube are convenient.

[0013] The present invention is further configured as follows: a scale is provided on the side wall of the cell brush body, and the scale is extended along the length direction of the cell brush body.

[0014] By adopting the above technical solution and using a ruler, it is convenient to accurately adjust the length of the cell brush head extending into the pleural cavity.

[0015] The present invention is further configured such that: the sealing tube is a rubber tube.

[0016] By adopting the technical solution and utilizing the rubber tube, the sealing performance of the connection between the sealing tube and the sleeve is improved.

[0017] The present invention is further configured as follows: the cell brush body is a stainless steel wire.

[0018] By adopting the above technical solution and using stainless steel wire, it is avoided that the products of the oxidation reaction of the cell brush remain in the pleural cavity.

[0019] The present invention is further configured as follows: the length of the cell brush body is 10-15 cm, and the length of the cell brush head is 4-5 cm.

[0020] By adopting the above technical solution, it is avoided that the cell brush is too long to affect the delivery and retraction of the cell brush head.

[0021] Another object of the present invention is to provide a method for using a cell brush for pleural brushing, which simplifies the operation of sending out and retracting the cell brush, facilitates pleural brushing, increases the number of tumor cells in pleural effusion, and improves the diagnostic positivity rate of malignant effusion.

[0022] The above technical objectives of the present invention are achieved through the following technical solutions: A method for using a cell brush for pleural brush examination, comprising the following steps:

[0023] S1: After the sleeve enters the pleural cavity, remove the needle core from the sleeve;

[0024] S2: insert the sealing tube into the sleeve to make the sealing tube and the sleeve sealed and connected;

[0025] S3: Hold the cell brush handle and the clamping body, shorten the distance between the cell brush handle and the clamping body, and the cell brush body sends the cell brush head from the sealed tube into the pleural cavity;

[0026] S4: Rotate the sleeve, and perform pleural brushing after the cell brush head contacts the pleura; in the process of rotating the sleeve, adjust the length of the cell brush in the pleural cavity to achieve sectoral brushing of the pleura;

[0027] S5: After the pleural brushing is completed, the distance between the cell brush handle and the clamping body is lengthened, and the cell brush body receives the cell brush head into the sealing tube, and then the sealing tube and the sleeve are taken out in turn for cleaning.

[0028] By adopting the above technical solution, external air is prevented from entering the pleural cavity, and the occurrence of artificial pneumothorax is reduced during the pleural brushing process; the sending out and retracting of the cell brush are simplified; the pleural brushing is facilitated, the number of tumor cells in the pleural effusion is increased, and the diagnostic positive rate of malignant effusion is improved.

[0029] In summary, the present invention has the following beneficial effects: utilizing a sealing tube and a sleeve to seal and connect, thereby preventing outside air from entering the pleural cavity, and reducing the occurrence of artificial pneumothorax during pleural brushing; utilizing a cell brush handle and a clamping body, making the sending out and retracting of the cell brush simple; facilitating pleural brushing, increasing the number of tumor cells in pleural effusion, and improving the diagnostic positive rate of malignant pleural effusion; utilizing the first card body and the second card body to engage with the card slot, thereby avoiding the situation where the needle core and the sealing tube are completely placed in the sleeve; utilizing a graduated ruler, thereby facilitating the precise adjustment of the length of the cell brush head extending into the pleural cavity, and increasing the area of ​​pleural brushing; and avoiding the situation where the cell brush is too long and affects the sending in and retracting of the cell brush head. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present invention;

[0031] Figure 2 This is a flow chart of Embodiment 2 of the present invention.

[0032] In the figure: 1, sleeve; 11, slot; 2, needle core; 21, first card body; 3, cell brush head; 4, sealing tube; 5, cell brush body; 6, second card body; 7, clamping body; 8, scale; 9, cell brush handle. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-2 The present invention is described in further detail.

[0034] Example 1: A cell brush for pleural brushing, such as Figure 1As shown, it includes a sleeve 1 and a needle core 2 plugged with the sleeve 1. During the process of inserting the sleeve 1 into the pleural cavity, the needle core 2 is plugged with the sleeve 1. It also includes a sealing tube 4 and a cell brush body 5 plugged with the sealing tube 4, and the sealing tube 4 is sealed and connected with the sleeve 1. A cell brush head 3 is provided at one end of the cell brush body 5, and a cell brush handle 9 is provided at the other end. A clamping body 7 is fixedly connected to the end of the sealing tube 4 close to the cell brush handle 9, and the cell brush body 5 is plugged with the clamping body 7. The sealing tube 4 is sealed and connected with the sleeve 1 to prevent external air from entering the pleural cavity, thereby reducing the occurrence of artificial pneumothorax during the pleural brushing process. The cell brush handle 9 and the clamping body 7 make it easy to send out and retract the cell brush. It is convenient to perform pleural brushing, increase the number of tumor cells in pleural effusion, and improve the diagnostic positive rate of malignant pleural effusion.

[0035] like Figure 1 As shown, the end of the needle core 2 is provided with a first card body 21, and the end of the sleeve 1 is provided with a card groove 11 for the first card body 21 to be engaged. The end of the sealing tube 4 close to the clamping body 7 is provided with a second card body 6 engaged with the card groove 11. By using the first card body 21 and the second card body 6 to engage with the card groove 11, the needle core 2 and the sealing tube 4 are prevented from being completely placed in the sleeve 1, so that the installation and removal operations of the needle core 2 and the sealing tube 4 are convenient.

[0036] like Figure 1 As shown, a scale 8 is provided on the side wall of the cell brush body 5, and the scale 8 is extended along the length direction of the cell brush body 5. The scale 8 is used to accurately adjust the length of the cell brush head 3 extending into the pleural cavity.

[0037] like Figure 1 As shown, the sealing tube 4 in this embodiment is a rubber tube, and the outer diameter of the rubber tube is 1.5mm-1.7mm. The rubber tube is used to improve the sealing performance of the connection between the sealing tube 4 and the sleeve 1.

[0038] like Figure 1 As shown, the cell brush body 5 in this embodiment is made of stainless steel wire. The use of stainless steel wire can prevent the product of the cell brush body 5 from remaining in the pleural cavity after the oxidation reaction occurs.

[0039] like Figure 1 As shown, the length of the cell brush body 5 is 10-15 cm, and the length of the cell brush head 3 is 4-5 cm, so as to avoid the situation that the cell brush is too long and affects the delivery and retraction of the cell brush head 3.

[0040] Example 2: A method for using a cell brush for pleural brushing, such as Figure 1 and Figure 2 As shown, the following steps are included:

[0041] Step 1: After the sleeve 1 enters the pleural cavity, the needle core 2 is taken out from the sleeve 1.

[0042] Step 2: insert the sealing tube 4 into the sleeve 1 so that the sealing tube 4 and the sleeve 1 are sealed and connected.

[0043] Step 3: Hold the cell brush handle 9 and the clamping body 7, shorten the distance between the cell brush handle 9 and the clamping body 7, and the cell brush body 5 delivers the cell brush head 3 from the sealing tube 4 into the pleural cavity.

[0044] Step 4: Rotate the sleeve 1, and the cell brush head 3 contacts the pleura to perform pleural brushing. During the rotation of the sleeve 1, the length of the cell brush in the pleural cavity is adjusted to achieve sectoral brushing of the pleura.

[0045] Step 5: After the pleural brushing is completed, the distance between the cell brush handle 9 and the clamping body 7 is lengthened, and the cell brush body 5 receives the cell brush head 3 into the sealing tube 4, and then the sealing tube 4 and the sleeve 1 are taken out in turn for cleaning.

[0046] Working principle: The sealing tube 4 is sealed and connected with the sleeve 1 to prevent the outside air from entering the pleural cavity, and reduce the occurrence of artificial pneumothorax during the pleural brushing process. The cell brush handle 9 and the clamping body 7 make the sending and retracting of the cell brush simple. It is convenient to perform pleural brushing, increase the number of tumor cells in pleural effusion, and improve the positive diagnosis rate of malignant pleural effusion.

[0047] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A cell brush for pleural brushing, comprising a sleeve (1) and a needle core (2) plugged into the sleeve (1), characterized in that: It also comprises a sealing tube (4) and a cell brush body (5) movably connected to the sealing tube (4), wherein the sealing tube (4) is sealingly connected to the sleeve (1); one end of the cell brush body (5) is provided with a cell brush head (3), and the other end is provided with a cell brush handle (9); the end of the sealing tube (4) close to the cell brush handle (9) is fixedly connected to a clamping body (7), and the cell brush body (5) is movably connected to the clamping body (7); The end of the needle core (2) is provided with a first card body (21), and the end of the sleeve (1) is provided with a card slot (11) for the first card body (21) to be engaged; the end of the sealing tube (4) close to the clamping body (7) is provided with a second card body (6) engaged with the card slot (11); The side wall of the cell brush body (5) is provided with a scale (8), and the scale (8) is extended along the length direction of the cell brush body (5); The sealing tube (4) is a rubber tube; The cell brush body (5) is a stainless steel wire; The length of the cell brush body (5) is 10-15 cm, and the length of the cell brush head (3) is 4-5 cm.

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