CN211049441U

CN211049441U - Side-push type cervical sampler

Info

Publication number: CN211049441U
Application number: CN201920906712.8U
Authority: CN
Inventors: 王小平
Original assignee: Shenzhen Medico Technology Co ltd
Current assignee: Shenzhen Medico Technology Co ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-07-21
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a side-push type cervical sampler, which comprises an insertion tube, a power component and a sampling rod; the power component comprises a shell, a push plate, a sector gear and a rack which are connected with the insertion pipe into a whole, the axis of the sector gear is rotationally connected in the shell, the sector gear comprises a first sector gear part and a second sector gear part which are arranged around the axis, the first sector gear part and the second sector gear part are respectively arranged at two sides of the axis, and the radius of the first sector gear part is smaller than the size of the second sector gear part; the rack is arranged in the shell along the axial direction, and one end of the rack is detachably connected with the sampling rod; the first fan-tooth part is partially exposed outside the shell, and the exposed part of the first fan-tooth part is meshed and connected with the push plate; the second sector-tooth part is meshed and connected with the rack. When promoting can realize the flexible of sampling rod through the scallop during push pedal, this technical structure is simple relatively for it is more convenient to operate.

Description

Side-push type cervical sampler

Technical Field

The utility model belongs to the technical field of the sample thief technique and specifically relates to a side pushing-type cervical sample thief.

Background

When a doctor examines diseases such as gynecological inflammation and cervical cancer of a female patient, a cervical sampler is usually needed. At present, the sampling of the exfoliated cervical cells is carried out in a treatment room of a medical health institution hospital and a physical examination center, under the help of doctors, the exfoliated cervical cells/secretions of the cervical are inserted into a vagina through a vaginal dilator and dilated, and the exposed cervical is collected by using a scraping blade or a cervical brush. The detection method generally needs to be carried out in a hospital or a detection center processing room, and the doctor and other professionals collect samples, so that the doctor has large workload and limited patients are detected and sampled every day, the outpatient examination patients are blocked, and the cervical cancer screening is seriously hindered.

For example, the patent number Z L201520829565.0, namely a technical disclosure of the cervical sampler, discloses a cervical sampler, which comprises a hollow handle and an insertion tube, wherein the hollow handle is communicated with the inner cavity of the insertion tube, the free end of the insertion tube is open, the cervical sampler further comprises a sampling part and a power part, the power part is connected with the sampling part, the power part is used for driving the movement of the sampling part, and the sampling part is movably sleeved in the hollow handle and the inner cavity of the insertion tube.

Therefore, the above technical problem needs to be solved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a side pushing type cervical sampler, which aims to provide a new structure and realize the expansion and contraction of the sampling head of the side-rotating mode control cervical sampler.

In order to solve the technical problem, the utility model provides a basic technical scheme does:

a side-push type cervical sampler comprises an insertion tube and a power component, wherein a sampling component is arranged in an inner cavity formed by the insertion tube and the power component, the sampling component comprises a sampling rod, the first end of the sampling rod is connected with the power component, the second end of the sampling rod is connected with a sampling head, and the insertion tube is provided with an opening communicated with the outside and the inner cavity so that the sampling head can be stretched and retracted in the inner cavity and the outside in a reciprocating manner;

the power component comprises a shell, a push plate, a sector gear and a rack which are connected with the inserting pipe into a whole, the axis of the sector gear is rotatably connected in the shell, the sector gear comprises a first sector gear part and a second sector gear part which are arranged around the axis, the first sector gear part and the second sector gear part are respectively arranged at two sides of the axis, and the radius of the first sector gear part is smaller than the size of the second sector gear part;

the rack is arranged in the shell along the axial direction, and one end of the rack is detachably connected with the sampling rod;

the first fan-tooth part is partially exposed outside the shell, and the exposed part of the first fan-tooth part is meshed and connected with the push plate; the second sector-tooth part is meshed and connected with the rack.

Further, the ratio of the radius of the first scalloped portion to the radius of the second scalloped portion is: 1: 2.

furthermore, the lower end face of push pedal have be used for with the teeth of a cogwheel of first fan tooth part meshing and set up the thread slipping on teeth of a cogwheel both sides, the thread slipping cooperates with the spout of shell side in order to realize the sliding connection of push pedal and shell, can drive when the push pedal of sliding first fan tooth part rotates.

Furthermore, one end of the rack close to the sampling rod is provided with a connecting plate which is arranged on the same side as the gear, and the connecting plate is detachably connected with the sampling rod.

Furthermore, the connecting plate is provided with a slot matched with the first end of the sampling rod, and the first end of the sampling rod is inserted into the slot.

Furthermore, the sampling rod is provided with a sliding ring on the peripheral side, and the sliding ring is in sliding contact fit with the inner cavity side wall of the insertion tube.

Furthermore, the insertion pipe is connected with the shell in an inserting mode.

Furthermore, the bottom of the rack is provided with a clamping groove arranged along the axial direction, and the clamping groove is connected with a guide rail fixed on the inner wall of the shell in a matching way.

Furthermore, the section of the clamping groove is in a fan shape with a central angle larger than 180 degrees.

Furthermore, the inner wall of the shell is provided with a first limiting block and a second limiting block which are arranged at intervals along the axial direction, and the first limiting block and the second limiting block are positioned on two sides of the rack and used for limiting the displacement of the rack.

The utility model has the advantages that:

the technical scheme of the utility model is that the side-push cervical sampler comprises an insertion tube and a power component, wherein a sampling component is arranged in an inner cavity formed by the insertion tube and the power component, the sampling component comprises a sampling rod, the first end of the sampling rod is connected with the power component, the second end of the sampling rod is connected with a sampling head, and the insertion tube is provided with an opening communicated with the outside and the inner cavity so that the sampling head can be stretched and retracted in the inner cavity and the outside in a reciprocating manner; the power component comprises a shell, a push plate, a sector gear and a rack which are connected with the inserting pipe into a whole, the axis of the sector gear is rotatably connected in the shell, the sector gear comprises a first sector gear part and a second sector gear part which are arranged around the axis, the first sector gear part and the second sector gear part are respectively arranged at two sides of the axis, and the radius of the first sector gear part is smaller than the size of the second sector gear part; the rack is arranged in the shell along the axial direction, and one end of the rack is detachably connected with the sampling rod; the first fan-tooth part is partially exposed outside the shell, and the exposed part of the first fan-tooth part is meshed and connected with the push plate; the second sector-tooth part is meshed and connected with the rack. When promoting can realize the flexible of sampling rod through the scallop during push pedal, this technical structure is simple relatively for it is more convenient to operate.

Drawings

Fig. 1 is a schematic external view of a side-push cervical sampler of the present invention;

FIG. 2 is a cross-sectional view of a side-pushing cervical sampler;

FIG. 3 is a partial enlarged view of FIG. 2A;

fig. 4 is a schematic structural diagram of the sampling rod and the slot.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 4, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

Referring to fig. 1 to 4, the side-push cervical sampler of the present embodiment includes an insertion tube 1 and a power unit 2, a sampling unit 3 is disposed in an inner cavity formed by the insertion tube 1 and the power unit 2, the sampling unit 3 includes a sampling rod 31, a first end of the sampling rod 31 is connected to the power unit 2, a second end of the sampling rod 31 is connected to a sampling head 32, the insertion tube 1 has an opening 11 communicating with the outside and the inner cavity for the sampling head 32 to reciprocally extend and retract between the inner cavity and the outside; the power part 2 comprises a shell 21, a push plate 22, a sector gear 23 and a rack 24 which are connected with the insertion tube 1 into a whole, wherein the axis 231 of the sector gear 23 is rotatably connected in the shell 21, the sector gear 23 comprises a first sector gear part 232 and a second sector gear part 233 which are arranged around the axis, the first sector gear part 232 and the second sector gear part 233 are respectively arranged at two sides of the axis 231, and the radius of the first sector gear part 232 is smaller than that of the second sector gear part 233; the rack 24 is arranged inside the housing 21 along the axial direction, and one end of the rack 24 is detachably connected with the sampling rod 31; wherein, the first fan-tooth part 232 is partially exposed outside the housing 21, and the exposed part of the first fan-tooth part 232 is engaged with the push plate 22; the second sector portion 233 is in meshing engagement with the rack 24.

In the present embodiment, the first sector portion 232 and the first sector portion 233 of the sector teeth 23 are disposed around the shaft center 231, that is, during the rotation of the sector teeth 23, the first sector portion 232 and the second sector portion 233 rotate synchronously. When the first sector-shaped portion 232 rotates, the second sector-shaped portion 233 is driven to rotate, so as to drive the rack 24 to slide, and the rack 24 drives the sampling head 32 to extend and retract at the opening 11 during the sliding process. It should be understood that, due to the structure of the push plate 22, it is very convenient during the whole using process of the cervical sampler, and the sampling head 32 at the sampling rod 31 can be controlled to extend and retract back and forth at the opening 11 by only pushing the push plate 22 back and forth with force. Compared with the traditional cervical sampler with a rotary bottom, the sampler has simpler structure and more convenient and free operation.

In the present technology, the radius of the first scalloped portion 232 is smaller than that of the second scalloped portion 233, so when the first scalloped portion 232 is pushed by the push plate 22 to rotate, an amplification effect is generated at the second scalloped portion 233, that is, when the push plate 22 moves by one unit length, the distance of the rack 24 moving is greater than one unit length. Specifically, in the present embodiment, the ratio of the radius of the first scalloped portion 232 to the radius of the second scalloped portion 233 is 1: 2, when the push plate 22 moves one unit distance, the rack 24 will move two unit distances. Of course, the present disclosure is not limited thereto, and the ratio of the radius of the first scalloped portion 232 to the radius of the second scalloped portion 233 may be any suitable ratio.

In detail, the lower end surface of the push plate 22 has a gear tooth 221 for engaging with the first sector portion 232 and a slide fastener 222 provided at both sides of the gear tooth, and the gear tooth 221 can engage with the first sector portion 232, and the first sector portion 232 can rotate when the push plate 22 is slid. In addition, the sliding buckle 222 cooperates with the sliding slot 214 on the side of the housing 21 to realize the sliding connection between the pushing plate 22 and the housing 21, and the first sector-tooth portion 232 can be driven to rotate when the pushing plate 22 is slid. Namely, after the sliding buckle 222 is matched with the sliding groove 214, on one hand, the sliding connection of the push plate 22 is realized, and on the other hand, the push plate 22 can be ensured to be meshed with the first sector-tooth part 232 at any time. Of course, the sliding connection of the push plate 22 can be accomplished otherwise as is known in the art.

In this scheme, shell 21 can be designed for different shapes according to the demand, preferably adopts square shell or cylindrical shell. In order to better hold the side-push cervical sampler, a finger-like structure may be provided on the circumferential side of the housing 21. In addition, the insertion tube 1 and the housing 21 are connected by plugging.

In order to realize the connection between the rack 24 and the sampling rod 31, one end of the rack 24 close to the sampling rod 31 is provided with a connecting plate 25 arranged on the same side as the sector teeth 23, and the connecting plate 25 is detachably connected with the sampling rod 31. The detachable connection of the connection board 25 and the sampling rod 31 can be various, and as shown in fig. 3, the connection board 25 has a slot 251 matched with the first end 312 of the sampling rod 31, and the first end of the sampling rod 31 is plugged in the slot 251. The sampling rod 31 is matched in shape to the socket 251, preferably in the shape of a cross, and is implemented by interference fit when assembled. In addition, the detachable fastening can also be realized in other ways, for example by screwing.

In this embodiment, in order to ensure the stability of the sliding process of the rack 24, a locking groove 241 is disposed at the bottom of the rack 24 along the axial direction, and the locking groove 241 is connected to the guide rail 211 fixed on the inner wall of the housing 21 in a matching manner. Therefore, the rack 24 can slide along the direction of the guide rail 211 in the sliding process, and the displacement is avoided in the moving process. Specifically, the cross section of the locking groove 241 is a sector with a central angle larger than 180 °, and the cross section corresponding to the guide rail 211 is also a sector with a central angle larger than 180 °.

Meanwhile, in order to limit the distance that the rack 24 slides back and forth, the inner wall of the housing 21 has a first stopper 212 and a second stopper 213 that are arranged at intervals in the axial direction, and the first stopper 212 and the second stopper 213 are located at both sides of the rack 24 to limit the displacement of the rack 24. When the rack 24 moves to meet the first stopper 212 and the second stopper 213, the rack is restricted from further movement.

Also in order to ensure the stability of the sampling rod 31 during sliding, the sampling rod 31 has a slip ring 311 on the circumferential side, and the slip ring 311 is in sliding contact with the inner cavity side wall of the insertion tube 1. When the sampling rod 31 slides, the slide ring 311 slides along the inner wall of the insertion tube 1, ensuring stability.

When the lateral-pushing cervical sampler is used, the lateral-pushing cervical sampler is held by hand, the push plate 22 is pushed, the sector teeth 23 rotate, the sector teeth 23 are meshed with the rack 24, so that the rack 24 is driven to move along the axial direction in the rotation process of the sector teeth 23, the sampling rod 31 is driven to move along the axial direction in the movement process of the rack 24, and finally the sampling head 32 is stretched and retracted at the opening 11.

This scheme has realized the drive to sampling rod 31 owing to adopted the combination cooperation of push pedal 22, sector tooth 23 and rack 24, convenient operation, convenient user's user demand of having satisfied.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A side-push type cervical sampler comprises an insertion tube (1) and a power component (2), wherein a sampling component (3) is arranged in an inner cavity formed by the insertion tube (1) and the power component (2), the sampling component (3) comprises a sampling rod (31), the first end of the sampling rod (31) is connected with the power component (2), the second end of the sampling rod is connected with a sampling head (32), the insertion tube (1) is provided with an opening (11) which is communicated with the outside and the inner cavity so that the sampling head (32) can be extended and retracted in the inner cavity and the outside in a reciprocating manner; the method is characterized in that:

the power part (2) comprises a shell (21) connected with the insertion pipe (1) into a whole, a push plate (22), fan teeth (23) and a rack (24), wherein the axis (231) of the fan teeth (23) is rotationally connected in the shell (21), the fan teeth (23) comprise a first fan tooth part (232) and a second fan tooth part (233) which are arranged around the axis, the first fan tooth part (232) and the second fan tooth part (233) are respectively arranged on two sides of the axis (231), and the radius of the first fan tooth part (232) is smaller than the size of the second fan tooth part (233);

the rack (24) is arranged inside the shell (21) along the axial direction, and one end of the rack (24) is detachably connected with the sampling rod (31);

wherein the first fan-tooth part (232) is partially exposed outside the shell (21), and the exposed part of the first fan-tooth part (232) is in meshing connection with the push plate (22); the second sector-tooth part (233) is meshed with the rack (24).

2. The side-push cervical sampler of claim 1, wherein:

the ratio of the radius of the first scalloped portion (232) to the radius of the second scalloped portion (233) is 1: 2.

3. the side-push cervical sampler of claim 1, wherein:

the lower end face of the push plate (22) is provided with a gear tooth (221) meshed with the first sector-tooth part (232) and a sliding buckle (222) arranged on two sides of the gear tooth, the sliding buckle (222) is matched with a sliding groove (214) on the side face of the shell (21) to realize sliding connection of the push plate (22) and the shell (21), and the first sector-tooth part (232) can be driven to rotate when the push plate (22) slides.

4. The side-push cervical sampler of claim 1, wherein:

one end of the rack (24) close to the sampling rod (31) is provided with a connecting plate (25) arranged on the same side as the sector gear (23), and the connecting plate (25) is detachably connected with the sampling rod (31).

5. The side-push cervical sampler of claim 4, wherein:

the connecting plate (25) is provided with a slot (251) matched with the first end of the sampling rod (31), and the first end of the sampling rod (31) is plugged in the slot (251).

6. The side-push cervical sampler of claim 1, wherein:

the periphery of the sampling rod (31) is provided with a slip ring (311), and the slip ring (311) is in sliding contact fit with the inner cavity side wall of the insertion tube (1).

7. The side-push cervical sampler of claim 1, wherein:

the insertion tube (1) is connected with the shell (21) in an inserting mode.

8. The side-push cervical sampler of claim 1, wherein:

the bottom of the rack (24) is provided with a clamping groove (241) arranged along the axial direction, and the clamping groove (241) is matched and connected with a guide rail (211) fixed on the inner wall of the shell (21).

9. The side-push cervical sampler of claim 8, wherein:

the section of the clamping groove (241) is in a fan shape with a central angle larger than 180 degrees.

10. The side-push cervical sampler of claim 1, wherein:

the inner wall of the shell (21) is provided with a first limiting block (212) and a second limiting block (213) which are arranged at intervals along the axial direction, and the first limiting block (212) and the second limiting block (213) are positioned at two sides of the rack (24) and used for limiting the displacement of the rack (24).