CN215129160U

CN215129160U - Cervical cell sampler

Info

Publication number: CN215129160U
Application number: CN202120717960.5U
Authority: CN
Inventors: 吴红军; 张祝妹
Original assignee: Guangdong Kangnaixin Biomedical Technology Co ltd
Current assignee: Guangdong Kangnaixin Biomedical Technology Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-12-14
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a cervical cell sample thief, locate including both ends open-ended barrel and cover the body of rod in the barrel, body of rod one end be connected with the sampling head, the body of rod the external screw thread has, the outer wall of the body of rod is equipped with and has the internal screw thread facing, the body of rod is relative the rotatory flexible of facing, the facing locate in the barrel and can drive the body of rod is relative together barrel rotary motion. The utility model discloses in, thereby the body of rod stretches out the sampling head or withdraws the sampling head at the internal spiral of facing, thereby the facing drives the body of rod for the rotatory sampling of barrel at the barrel internal rotation, avoids the barrel to bring the discomfort for the user at internal rotation, or can not effectively drive the body of rod rotatory when the barrel is rotatory to the sampling is insufficient.

Description

Cervical cell sampler

Technical Field

The utility model relates to a self-checking sampler, in particular to a disposable cervical cell sampler, belonging to the technical field of medical instruments.

Background

Clinically, examination of anus and cervical lesions, examination of HPV virus, and the like, needs to collect exfoliated cell specimens, and usually, professional medical technicians in medical institutions expand expanders to expand anus and vagina, insert samplers into the expanders to collect specimens, and then carry out inspection and diagnosis. This sampling method is not only limited in efficiency, but also at the cost of privacy exposure. There is therefore a need for a cervical sampler that enables autonomous sampling by a patient.

Secondly cervical cell sampling brush that appears in the existing market has many-sided not enough, specifically embodies: the operation is complex, the speed and the probing depth are not controllable, the rotary vibration amplitude is too large, the sampling displacement and the specimen collection can not meet the requirements, and the patients are suffered from discomfort and even injury. The reason is as follows: the sampling brush rod and the brush sleeve are not concentric, the brush head is not accurately controlled in stretching and retracting, and the brush stem connected with the brush head and the brush sleeve can not rotate or rotate eccentrically. The concrete expression is as follows: patent No. CN208677453U discloses a cervical cell sampling brush, in which a brush rod can rotate in a brush barrel, and belongs to a push rod type, the brush rod has a first station, a second station and a stop position, and a counting reference part is a fixed protrusion, a counting trigger part is an elastic protrusion, and the two contact are interference contact and generate sound by friction. This structure will cause: the push rod can be blocked, cannot be at a constant speed, is eccentric and is suspended in rotation when being pushed in, pulled out and rotated, so that a user feels uncomfortable or is injured. For another example: patent publication No. CN 203914962U; CN202191314U is that the brush head is extended and contracted by the rotation of the inner core along the nesting, but the whole nesting can only be sampled by rotating around the outer diameter, so that the swing and the amplitude are large, the large-amplitude displacement is caused, the material taking and positioning are not accurate, the result is that the material taking of the brush head does not reach the standard, the diagnosis is influenced, and the touch sense of two users is uncomfortable, even the organs are seriously injured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to make up the defects of the prior art, and provides a cervical cell sampler which can rotate in stages and does not generate displacement phenomena such as rod body stretching and eccentric displacement, wherein the primary rotation of the sampler is used for rotating the rod body to drive the sampling head to stretch; the second-stage rotation is the rotation of the tooth socket to realize that the body of rod and the tooth socket are connected in the barrel and rotate around a concentric shaft to drive the brush head to rotate for sampling.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

cervical cell sample thief is located including both ends open-ended barrel and cover the body of rod in the barrel, body of rod one end be connected with the sampling head, the body of rod have the external screw thread, its characterized in that the outer wall of the body of rod is equipped with and has the internal screw thread facing, the body of rod is relative the rotatory flexible of facing, the facing locate in the barrel and can drive the body of rod is relative together barrel rotary motion.

The cervical cell sampler is characterized in that the inner wall of the cylinder body is provided with a boss, and the outer wall of the tooth socket is circumferentially provided with a rotary convex rib which can be abutted against the boss.

The cervical cell sampler is characterized in that a fixing sleeve is arranged between the cylinder body and the tooth socket, and the fixing sleeve and the lug boss are matched to form a rotating track for the rotating convex rib to rotate.

The cervical cell sampler is characterized in that one end of the rod body connected with the sampling head is circumferentially provided with a concentric positioning rib, and the inner wall of the cylinder body is provided with a conical inner wall which can be matched with the concentric positioning rib to prevent circumferential eccentricity of the rod body after the sampling head extends out.

The cervical cell sampler as described above, wherein the rod body is provided with at least one protrusion.

The cervical cell sampler is characterized in that the end part of the tooth socket is provided with a limiting groove for limiting the convex stop position.

The cervical cell sampler as described above, wherein the stopper groove is located below the upper edge of the mouthpiece, and the protrusion has a lead slope extending radially outward from the circumferential wall of the mouthpiece in an axial direction.

The cervical cell sampler is characterized in that the connecting end of the sampling head is provided with a breaking position.

The cervical cell sampler is characterized in that the outer wall of the tooth socket is sleeved with a rotating sleeve which is positioned and connected with the tooth socket.

The cervical cell sampler is characterized in that the inner wall of the cylinder body is provided with at least one positioning block, and the end part of the fixing sleeve adjacent to the rotary convex rib is provided with a yielding groove and a clamping groove for embedding the positioning block.

Compared with the prior art, the utility model, there is following advantage:

the utility model discloses in, thereby the body of rod stretches out the sampling head or withdraws the sampling head at the internal spiral of facing, thereby the facing drives the body of rod for the rotatory sampling of barrel at the barrel internal rotation, avoids the barrel to bring the discomfort for the user at internal rotation, or can not effectively drive the body of rod rotatory when the barrel is rotatory to the sampling is insufficient.

Drawings

FIG. 1 is a three-dimensional structure diagram of the sampling state of the present invention;

fig. 2 is a partial exploded view of the sampling state of the present invention;

FIG. 3 is a perspective view showing a sectional structure of the barrel of the present invention;

FIG. 4 is a perspective view showing a cross-sectional structure of the rotary sleeve of the present invention;

fig. 5 is a partial exploded view of the exposed broken position of the present invention;

fig. 6 is a three-dimensional structure diagram of the present invention in the broken position exposed state.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

as shown in fig. 1-6, the cervical cell sampler comprises a barrel 1 with two open ends and a rod 2 sleeved in the barrel 1, wherein one end of the rod 2 is connected with a sampling head 3, the rod 2 has an external thread, the outer wall of the rod 2 is provided with a tooth socket 4 with an internal thread, the rod 2 is rotationally telescopic relative to the tooth socket 4, and the tooth socket 4 is arranged in the barrel 1 and can drive the rod 2 to rotate relative to the barrel 1. The relative facing 4 spiral rotations of the body of rod 2 realizes the flexible of the 2 front end sampling heads 3 of the body of rod, for the one-level is rotatory, after the barrel 1 is stretched out to the sampling head 3, rotatory facing 4 can drive the body of rod 2 and rotate the sampling together, belongs to the second grade rotation. In the process, the cylinder body 1 is kept in an immovable state in vivo, the rotating tooth socket 4 and the rod body 2 can complete full sampling, and discomfort brought to a user when the cylinder body rotates is avoided.

Preferably, 1 inner wall of barrel is equipped with

boss

11, and 4 outer wall circumference of facing is equipped with the rotatory protruding muscle 41 that can offset with boss 11, and the facing 4 of being convenient for drives the body of rod 2 and steadily rotates when, also prevents that the body of rod 2 excessively from getting into the internal damage that brings. More preferably, a fixing sleeve 5 is arranged between the cylinder 1 and the tooth socket 4, and the fixing sleeve 5 and the boss 11 cooperate to form a rotating track for the rotating convex rib 41 to rotate. The rotary convex rib 41 is limited in the axial direction and rotates in the rotary track, so that the tooth socket 4 drives the rod body 2 to rotate more smoothly, and the sampling is prevented from being influenced by the extension of the rod body 2. And, the body of rod 2 and barrel 1, facing 4 and fixed cover 5 are all with the coaxial assembly, guarantee to form fixed concentric shaft rotating member behind the body of rod 2 assembly barrel 1, avoid the body of rod 2 to lead to the fact the discomfort for the user when 1 internal rotation of barrel eccentrically.

Further, one end of the rod body 2 connected with the sampling head 3 is circumferentially provided with a concentric positioning rib 22, and the inner wall of the cylinder body 1 is provided with a conical inner wall 13 which can be matched with the concentric positioning rib 22 to prevent circumferential eccentricity of the rod body 2 after the sampling head 3 extends out, as shown in fig. 2-3. Like this body of rod 2 axial upwards has two concentric fixed parts of circumference with barrel 1 at least, and is more stable when the body of rod 2 and the integrative rotatory sampling of facing 4, can not sway and rock. More preferably, the end of the barrel 1 extending out of the sampling head 3 is conical, and the conical inner wall 13 is a transition part between the conical front end of the barrel 1 and the rear part of the main body, so as to leave room for further extending out of the rod body 2 to break off the sampling head 3.

Preferably, the rod body 2 is provided with at least one protrusion 21 capable of abutting against the edge of the tooth socket 4, so that the extension length of the rod body 2 is prompted and limited, and the injury to a patient is avoided.

The utility model discloses a preferred embodiment, body of rod 2 are the injection molding, and the tip of facing 4 is equipped with spacingly protruding 21 stop position's spacing groove 42. The limiting groove 42 is positioned below the upper edge of the tooth socket 4, and the limiting groove 42 is matched with the bulge 21 in shape to accommodate the bulge 21 and prevent the bulge 21 from being stressed. The protrusion 21 has a guiding slope 211 extending radially outward from the circumferential wall of the mouthpiece 4 in the axial direction, i.e. the lower surface of the protrusion 21 is a guiding slope, which facilitates the protrusion 21 to be caught into the limiting groove 42 from the upper edge of the mouthpiece 4. When the sampling head 3 is completely extended out of the cylinder body 1, the bulge 21 of the rod body 2 is abutted against the stop edge of the tooth socket 4 to prompt a user to sample, when the tooth socket 4 is rotated, the rod body 2 is simultaneously rotated, the sampling head 3 samples, and after the sampling head 3 is taken out and needs to be broken, as shown in fig. 5-6, the rod body 2 is further rotated to enable the bulge 21 to be screwed into the tooth socket 4 and enter the limiting groove 42 under the guide of the guide inclined plane 211, so that the sampling head 3 is further extended out, the rod body 2 is prevented from retracting, the breaking operation is facilitated, and the sampling head 3 is broken into a cell preservation liquid bottle. More preferably, the connection end of the sampling head 3 is provided with a breaking position 31, so that the sampling head 3 can be broken conveniently and rapidly.

Further preferably, the outer wall of the tooth socket 4 is sleeved with a rotary socket 6 which is connected with the tooth socket in a positioning mode, and the rotary socket 6 and the tooth socket 4 are assembled coaxially. When beautifying the tooth socket 4, the user can rotate the rotary sleeve 6 to drive the tooth socket 4 to rotate along the same axis, so as to prevent radial eccentric displacement. 4-5, the outer wall of the tooth socket 4 is provided with at least one fixed salient point 43, the inner wall of the rotary socket 6 is provided with at least one communicated deep groove 61 and shallow groove 62, the deep groove 61 extends to the nesting port of the rotary socket 6, and the shallow groove 62 does not extend to the port of the rotary socket 6. Facing 4 is the injection molding, and its fixed bump 43 has certain elastic deformation nature, and during the rotatory cover of suit 6, can the tight fit slip behind fixed bump 43 entering shallow slot 62, when moving to deep groove 61 position, during fixed bump 43 stretched into deep groove 61, pressure when the fitting timing disappeared, and fixed bump 43 resumes the extension state to fixed rotatory cover 6 of circumference and facing 4.

The utility model discloses in further preferred, 1 inner wall of barrel is equipped with at least one locating piece 12, and rotatory protruding muscle 41 is equipped with corresponding breach 411, can let a locating piece 12 during the installation. One end of the fixing sleeve 5 adjacent to the rotary convex rib 41 is provided with a relief groove 51 and a clamping groove 52 for embedding the positioning block 12. Let down groove 51 and fixed cover 5's lower port communicate with each other, it leads to the groove to be the axial bar, draw-in groove 52 is for the logical groove or the recess that matches locating piece 12, let down groove 51 through locating piece 12 when fixed cover 5 stretches into in the barrel 1, then rotatory fixed cover 5, it is rotatory to make the 12 tight adaptations of locating piece, then embedding draw-in groove 52, thereby with fixed cover 5 and barrel 1 fixed connection, the end of stretching into of fixed cover 5 forms rotatory track with boss 11, at this moment, the rotatory protruding muscle 41 of facing 4 is located this rotatory track, be coaxial device with barrel 1 and fixed cover 5, can steadily and smoothly rotate.

The utility model discloses during the use, barrel 1 stretches into internally, facing 4 is kept away from to the arch 21 of the body of rod 2, the handheld facing 4 of user or swivel mount 6, the rotatory body of rod 2 of another hand offsets to the top edge of arch 21 with facing 4, sampling head 3 stretches out barrel 1 completely, then stop the operation to the body of rod 2, rotate swivel mount 6, drive facing 4 and body of rod 2 along with the integrative rotation of axle center axial, after the abundant sample, take out barrel 1, further rotatory body of rod 2 makes arch 21 get into spacing groove 42, make the rupture position 31 of sampling head 3 expose, the axial displacement of the spacing body of rod 2 simultaneously, accomplish the cell sample promptly with the rupture of sampling head 3 in the bottle that is equipped with cell preservation liquid.

Claims

1. Cervical cell sample thief is located including both ends open-ended barrel (1) and cover body of rod (2) in barrel (1), body of rod (2) one end be connected with sampling head (3), body of rod (2) external screw thread, its characterized in that have: the outer wall of the rod body (2) is provided with a tooth socket (4) with an internal thread, the rod body (2) is relative, the tooth socket (4) is rotationally telescopic, the tooth socket (4) is arranged in the barrel body (1) and can drive the rod body (2) to move together in a rotating mode, and the barrel body (1) rotates.

2. The cervical cell sampler according to claim 1, wherein the inner wall of the barrel (1) is provided with a boss (11), and the outer wall of the tooth socket (4) is circumferentially provided with a rotary rib (41) capable of abutting against the boss (11).

3. The cervical cell sampler according to claim 2, wherein a fixing sleeve (5) is disposed between the barrel (1) and the tooth socket (4), and the fixing sleeve (5) and the boss (11) cooperate to form a rotation track for the rotation of the rotation rib (41).

4. The cervical cell sampler according to claim 1, wherein the end of the rod (2) connected to the sampling head (3) is circumferentially provided with a concentric positioning rib (22), and the inner wall of the cylinder (1) is provided with a conical inner wall (13) which can match with the concentric positioning rib (22) to prevent circumferential eccentricity of the rod (2) when the sampling head (3) is extended.

5. Cervical cell sampler according to claim 1, characterized in that the shaft (2) is provided with at least one protrusion (21).

6. The cervical cell sampler according to claim 5, wherein the end of the mouthpiece (4) is provided with a stopper groove (42) for stopping the stop of the protrusion (21).

7. The cervical cell sampler according to claim 6, wherein the stopper groove (42) is located below the upper edge of the mouthpiece (4), and the protrusion (21) has a lead slope (211) extending radially upward and outward from the circumferential wall of the mouthpiece (4).

8. Cervical cell sampler according to claim 1, characterized in that the connecting end of the sampling head (3) is provided with a break (31).

9. The cervical cell sampler as claimed in claim 1, wherein the outer wall of the mouthpiece (4) is provided with a rotary sleeve (6) which is connected with the outer wall in a positioning manner.

10. The cervical cell sampler according to claim 3, wherein the inner wall of the barrel (1) is provided with at least one positioning block (12), and the end of the fixing sleeve (5) adjacent to the rotary rib (41) is provided with a relief groove (51) and a clamping groove (52) for embedding the positioning block (12).