CN210408484U - Dual-purpose cell brush - Google Patents

Abstract

The utility model provides a dual-purpose cell brush, including brush head, outer tube, protecting sleeve, slider and bracelet, the slider is inside to have the cavity, and the cavity includes sheath embedding chamber, transitional chamber and the injection embedding chamber that connects gradually, injection embedding chamber length be less than syringe injection head length, the injection head of syringe stretches into the injection embedding chamber and with transitional chamber interference fit; the protective sleeve in then have outer lumen and boosting chamber of through connection in proper order, the boosting chamber correspond to set up and be connected one side with the slider, the outer tube corresponds boosting chamber position department outsourcing and has the boosting pipe, boosting pipe length is less than boosting chamber length, and boosting pipe external diameter is greater than outer lumen diameter and is less than boosting chamber diameter. The utility model has the advantages of reasonable design, the boosting pipe is spacing good, can not block into the outer tube, simultaneously take out the brush head after, can cooperate the grafting syringe to be used for injecting or wash the operation, and a thing is dual-purpose, enlarges the application scope of cytobrush.

Description

Dual-purpose cell brush

Technical Field

The utility model relates to a medical instrument especially cytobrush technical field especially relates to a dual-purpose type cytobrush.

Background

In clinic, the collection of living tissues and cells under endoscope is generally realized by a cell brush. The cytobrush commonly used at present generally comprises a brush head, a protective sleeve, a sliding block, a boosting tube, a hand ring and the like. In use, through handheld slider and rotate the bracelet and realize driving the tip brush head and take a sample the back, the slider is usually made for hard material. The ordinary cell brush has a single function and only has a sampling function, and in clinic, injection, flushing and the like are needed to be carried out under the inner diameter, and other equipment needs to be matched for use.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: in order to overcome the defects of the prior art, the utility model provides a boosting is good, the boosting pipe is spacing good, and a dual-purpose cytobrush can be used in cooperation with the injection of an injector after normal sampling.

The utility model provides a technical scheme that its technical problem adopted is: a dual-purpose cell brush can be used for cell sampling and used for inserting an injector, and comprises a brush head, an outer tube, a protective sleeve, a sliding block and a hand ring, wherein a cavity is formed in the sliding block and is used for the outer tube to penetrate through, the cavity in the sliding block comprises a protective sleeve embedding cavity, a transition cavity and an injection embedding cavity which are sequentially connected, the brush head is fixed at the end part of the outer tube extending out of the protective sleeve embedding cavity side, the hand ring and the end part of the outer tube extending out of the injection embedding cavity side are fixed, the protective sleeve is fixed on the end surface of the sliding block corresponding to the protective sleeve embedding cavity, the protective sleeve is wrapped on the peripheral surface of the outer tube, and the connecting end of the protective; the length of the injection embedding cavity is smaller than that of an injection head of the injector, and the injection head of the injector extends into the injection embedding cavity and is in interference fit with the transition cavity; the protective sleeve in then have outer lumen and boosting chamber of through connection in proper order, the boosting chamber correspond to set up and be connected one side with the slider, the outer tube corresponds boosting chamber position department outsourcing and has the boosting pipe, boosting pipe length is less than boosting chamber length, and boosting pipe external diameter is greater than outer lumen diameter and is less than boosting chamber diameter.

In above-mentioned scheme, ingenious design the slider, use the brush head sample as required and finish the back, take out the brush head to correspond the slider and connect the syringe, make the boosting chamber and the outer lumen of protecting pipe become the extension of the injection head of syringe, the liquid that flows out in the follow injection head flows out through boosting chamber and outer lumen, has integrateed injection washing function on the cytobrush.

Correspondingly, in order to facilitate the interference fit of the injection head of the injector and the transition cavity, the sliding block is made of an elastomer material, and the injection head of the injector is connected with the inner wall of the transition cavity in an elastic fit manner.

The beneficial effects of the utility model are that, the utility model provides a pair of dual-purpose type cytobrush, structural design is reasonable, and the boosting pipe is spacing good, can not block into the outer tube, and the slider tail end can cooperate the syringe to use simultaneously, takes out the brush head back, can cooperate the grafting syringe to be used for the injection or wash the operation, and a thing is dual-purpose, enlarges the application scope of cytobrush.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.

Fig. 2 is a cross-sectional view a-a of fig. 1.

Fig. 3 is a schematic structural view of the integrated syringe of the present invention.

In the figure, the toothbrush comprises a toothbrush head 1, an outer tube 3, a protective sleeve 4, a sliding block 5, a hand ring 6, a boosting tube 7, an injector 8, an injection head 9, a protective sleeve embedding cavity 10, a transition cavity 11, an injection embedding cavity 12, an outer tube cavity 13 and a boosting cavity.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1 to 3 show a dual-purpose cell brush, which is the preferred embodiment of the present invention, and can be used for cell sampling and for plugging a syringe 7, including a brush head 1, an outer tube 2, a sheath tube 3, a slider 4 and a hand ring 5. Slider 4 inside have the cavity and supply outer tube 2 to run through and pass through, 4 inside cavities of slider are including the sheath embedding chamber 9 that connects gradually, transition chamber 10 and injection embedding chamber 11, brush head 1 fix the tip that outer tube 2 stretches out sheath embedding chamber 9 side, bracelet 5 and outer tube 2 stretch out the tip of injection embedding chamber 11 side fixed, slider 4 correspond 9 terminal surfaces in sheath embedding chamber and be fixed with protecting pipe 3, protecting pipe 3 parcel is on the 2 outer peripheral faces of outer tube, protecting pipe 3 and slider 4's link stretch into and fix on 9 inner walls in sheath embedding chamber.

Sheath 3 in then have outer lumen 12 and the boosting chamber 13 of through connection in proper order, boosting chamber 13 correspond and set up and be connected one side with slider 4, outer tube 2 corresponds boosting chamber 13 position department outsourcing has boosting pipe 6, boosting pipe 6 length is less than boosting chamber 13 length, and boosting pipe 6 external diameter is greater than outer lumen 12 diameter and is less than boosting chamber 13 diameter, is promoting brush head 1 forward in-process promptly, boosting pipe 6 offsets with outer lumen 12 terminal surface to can not produce the condition in boosting pipe 6 embedding outer tube 2. Simultaneously, the length of boosting pipe 6 also can design according to human hand type, and after human hand held cell brush's slider 4 and bracelet 5, the hand opened to the biggest, predicts this data, then corresponds the length of design boosting pipe 6, makes boosting pipe 6 open the hand and also can not pull out from slider 4 when the biggest, avoids causing brush head 1 and outer tube 2 to take place to be difficult to the bending that recovers after pulling out.

In order to integrate the injection function on the cell brush, a structure for correspondingly inserting the injection head 8 of the injector 7 is required to be designed on the slide block 4, namely the injection cavity and the transition cavity 10 in the slide block 4 in the scheme. The length of the injection embedding cavity 11 is smaller than that of the injection head 8 of the injector 7, and the injection head 8 of the injector 7 extends into the injection embedding cavity 11 and is in interference fit with the transition cavity 10. In order to facilitate the interference fit between the injection head 8 of the injector 7 and the transition cavity 10, the sliding block 4 is made of an elastomer material, and the injection head 8 of the injector 7 is elastically matched and connected with the inner wall of the transition cavity 10.

The dual-purpose cell brush designed in this way is reasonable in structural design and skillfully designs the sliding block 4. When in use, the brush head 1 can be used for sampling according to the requirement. After sampling, if physiological saline needs to be injected, the brush head 1 can be drawn out and connected with the injector 7 corresponding to the slide block 4, so that the boosting cavity 13 and the outer cavity 12 of the sheath tube 3 become the extension of the injection head 8 of the injector 7. Because the slider 4 is an elastomer, the cooperation between the injection head 8 and the transition chamber 10 becomes a seal, and the liquid flowing out from the injection head 8 flows out through the boosting chamber 13 and the outer tube chamber 12. So can be on the cytobrush integrated the injection and wash the function, the boosting tube 6 is spacing good simultaneously, can not block into outer tube 2, also can not pulled out in the hand open range, and 4 tail ends of slider can cooperate the syringe 7 to use simultaneously, take out brush head 1 after, can cooperate grafting syringe 7 to be used for the injection or wash the operation, and the cytobrush can be one thing dual-purpose, and application scope enlarges.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (2)

1. A dual-purpose cell brush, can be used to the cell sample and be used for grafting syringe (7), its characterized in that: the toothbrush comprises a brush head (1), an outer tube (2), a protective sleeve (3), a slider (4) and a bracelet (5), wherein a cavity is formed inside the slider (4) and is used for the outer tube (2) to penetrate through, the cavity inside the slider (4) comprises a sheath embedding cavity (9), a transition cavity (10) and an injection embedding cavity (11) which are sequentially connected, the brush head (1) is fixed at the end part of the outer tube (2) extending out of the sheath embedding cavity (9), the bracelet (5) is fixed with the end part of the outer tube (2) extending out of the injection embedding cavity (11), the protective sleeve (3) is fixed on the end face of the slider (4) corresponding to the sheath embedding cavity (9), the protective sleeve (3) is wrapped on the outer peripheral surface of the outer tube (2), and the connecting end of the protective sleeve (3) and the slider (4) extends into and is fixed on the inner wall of the sheath embedding; the length of the injection embedding cavity (11) is smaller than that of an injection head (8) of the injector (7), and the injection head (8) of the injector (7) extends into the injection embedding cavity (11) and is in interference fit with the transition cavity (10); sheath pipe (3) in then have outer lumen (12) and the boosting chamber (13) of through connection in proper order, boosting chamber (13) correspond to set up and be connected one side with slider (4), outer tube (2) correspond boosting chamber (13) position department outsourcing has boosting pipe (6), boosting pipe (6) length is less than boosting chamber (13) length, and boosting pipe (6) external diameter is greater than outer lumen (12) diameter and is less than boosting chamber (13) diameter.

2. A dual-purpose cytobrush as defined in claim 1, wherein: the sliding block (4) is made of an elastomer material, and an injection head (8) of the injector (7) is elastically matched and connected with the inner wall of the transition cavity (10).

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