CN217090779U - Medical clinical tumour sampling device - Google Patents

Abstract

The utility model discloses a medical clinical tumour sampling device, including sampling tube and sample chamber, the detachable main sleeve pipe of installing in top of sampling tube, the inside of main sleeve pipe switches on from top to bottom and is provided with the suction chamber, the internally mounted in suction chamber has the piston, and the pull rod is installed on the top of piston, main sheathed tube is side surface mounting has the stopper, and installs spacing guiding mechanism between the side of stopper and pull rod, the sampling tube bottom in the sample chamber outside is provided with the suction pore, the inside movable mounting in sample chamber has the thief rod, the top of thief rod and the bottom swing joint of piston, and install rotatory sampling mechanism on the thief rod. The utility model discloses a be provided with a series of structures for this medical clinical tumour sampling device, but disposable has the negative pressure suction and bores the function of getting, can realize that blood water and tumour tissue separation, liquid cell separation and solid-state tissue bore and get the operation, just going on of convenient sample and follow-up processing operation.

Description

Medical clinical tumour sampling device

Technical Field

The utility model relates to a tumour sampling technical field specifically is a medical clinical tumour sampling device.

Background

Tumor is an inevitable topic in modern medicine, is a genetic disease, but is not inherited, is a disease formed by long-term abnormal proliferation of a certain part of tissue cells in a body, and can be divided into benign tumor and malignant tumor according to the structure of tumor cells and the size of harm to a human body. In clinical medicine, a tumor needs to be sampled by a sampling device in order to perform medical activities such as diagnosis of the tumor.

In the market, there are many types of tumor sampling devices, such as a simple liquid cell aspiration sampling device, which has a simple structure and can only sample liquid tumor cells, and the sample often contains unnecessary substances such as blood and the like. If carry out the sample of solid state tissue, if bone tumour sample, then still need operate with the help of other instruments, and this type of instrument often needs the motor as the basis, does benefit to and bores the operation of getting to bone tumour region, causes equipment cost height from this, can't satisfy disposable sample demand, and the actual operation is got up also comparatively complicacy, is unfavorable for clinical medical practitioner to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical clinical tumour sampling device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a medical clinical tumour sampling device, includes the sampling tube and sets up the sample chamber in the sampling tube bottom, the detachable main sleeve pipe of installing in top of sampling tube, the inside of main sleeve pipe switches on from top to bottom and is provided with the suction chamber, the internally mounted in suction chamber has the piston, and the pull rod is installed on the top of piston, main sheathed tube is side surface mounting has the stopper, and installs spacing guiding mechanism between the side of stopper and pull rod, the sampling tube bottom in the sample chamber outside is provided with the suction pore, the suction pore upwards extends to the top of sampling tube, and the suction pore switches on with the suction chamber, the inside movable mounting in sample chamber has the thief rod, the top of thief rod and the bottom swing joint of piston, and install rotatory sampling mechanism on the thief rod.

Preferably, spacing guiding mechanism includes activity spacing part, guide chi and activity hole, switches on the inside that sets up at the stopper from top to bottom in the activity hole, and guide chi movable mounting is inside the activity hole, and the top and the pull rod top side fixed surface of guide chi are connected, and the surface equipartition of guide chi has the latch, and activity spacing part is installed at the surface of stopper, and activity spacing part extends to the activity downthehole portion.

Preferably, the movable limiting part comprises a control ring, a clamping block and a return spring, the clamping block is movably mounted on the surface of the limiting block through a through hole, the inner side end of the clamping block is matched with the clamping teeth, the return spring is mounted on the surface of the clamping block close to the inner side end, the return spring is tightly propped against the inner wall of the movable hole far away from the guide ruler, and the control ring is mounted on the surface of the outer side end of the clamping block.

Preferably, rotatory sampling mechanism includes helical tooth, bearing spare and guide screw, and the bearing spare is installed in the junction of piston bottom and sampling rod, and the guide screw sets up in the top intermediate position department of sampling tube, and the sampling rod is through the activity from top to bottom of guide screw, and the inboard sampling rod surface mounting of guide screw has the helical tooth.

Preferably, the bottom of the sampling rod is provided with a micro-drill.

Preferably, the bottom end of the sampling tube at one side of the suction duct is provided with a positioning tooth.

Preferably, the sampling tube is in threaded connection with the main sleeve, and a buckle piece is installed at the connection position of the outer side surface between the sampling tube and the main sleeve.

Preferably, the surfaces of the main sleeves on the two sides of the limiting block are provided with handles.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this medical clinical tumour sampling device, effect through sampling tube and main sleeve pipe separation, can realize the relative dismantlement effect between the two, can transport the sampling tube alone after the sample, do benefit to the tumour cell or the tissue with its inside sample and take out, make things convenient for follow-up use, and with the help of the main sleeve pipe, be similar to injection needle tube structure, only need carry out the up-and-down motion with the help of pull rod pulling piston, make the inside negative pressure suction that produces of main sleeve pipe, aspirate liquid tumour cell or tissue fluid etc. with the help of the suction pore, when doing benefit to and carrying out liquid sample, can carry out the suction of effects such as bloody water, the blood cell mixes with tumour cell when avoiding the sample and causes subsequent inconvenient operation, when subsequent sample is derived, only need to make the piston reset just can realize actual effect.

2. This medical clinical tumour sampling device, through the bearing spare, can drive the piston at the pull rod and carry out the up-and-down motion in-process, make whole thief rod only receive the spacing of up-and-down motion, and with the help of the guide screw, under the condition that has the helical tooth on guaranteeing the thief rod, thief rod up-and-down motion can be by helical tooth and the effect that the guide screw realized rotary motion, make whole thief rod carry out rotary motion, and then can sample to some solid-state or hardness tumour tissue of handing over greatly, do benefit to actual operation, and avoid the use of motor class equipment, the one-time use is with low costs.

3. This medical clinical tumour sampling device through the stopper, can carry out spacing guide to the motion of guide chi, and then carries out spacing guide to the motion of pull rod to combine the control ring, can carry out spacing fixed to guide chi up-and-down motion to a certain position after, avoid guide chi and even pull rod to carry out the up-and-down motion, prevent the motion that leads to the piston under the exogenic action after the sample is accomplished, protect the sample of sample.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic top view of the main casing according to the present invention;

fig. 3 is a schematic top view of the control ring of the present invention;

fig. 4 is a schematic diagram of the internal structure of the present invention.

In the figure: 1. a sampling tube; 2. a main bushing; 3. a control loop; 4. clamping teeth; 5. a pull rod; 6. a limiting block; 7. a guide ruler; 8. a fastener; 9. a handle; 10. a movable hole; 11. a clamping block; 12. a return spring; 13. positioning teeth; 14. a suction duct; 15. helical teeth; 16. a piston; 17. a suction lumen; 18. a bearing member; 19. a guide screw hole; 20. a sampling rod; 21. a micro-drill.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the medical clinical tumor sampling device of the embodiment includes a sampling tube 1 and a sampling cavity disposed at the bottom of the sampling tube 1, the sampling cavity has only a lower opening and an upper opening facing the tumor cells or tissues to be sampled, the top end of the sampling tube 1 is detachably mounted with a main sleeve 2, the interior of the main sleeve 2 is vertically communicated with a suction cavity 17, the whole structure of the main sleeve 2 is cylindrical, the suction cavity 17 is internally mounted with a piston 16 similar to a rubber piston in an injection syringe, and can be forced to move up and down along the suction cavity 17, the top end of the piston 16 is mounted with a pull rod 5, the pull rod 5 has a larger length and can be driven by a human to move up and down, so that the lower part of the suction cavity 17 generates a negative pressure effect, the side surface of the main sleeve 2 is mounted with a stopper 6, the stopper 6 is vertically disposed and has a moderate length, and a limit guide mechanism is arranged between the limit block 6 and the side edge of the pull rod 5 for limiting and guiding the movement of the pull rod 5, the bottom end of the sampling tube 1 at the outer side of the sampling cavity is provided with a suction pore channel 14, the suction pore channel 14 extends upwards to the top end of the sampling tube 1 and can be used as a movable channel and a storage channel for sampling blood or fluid tumor cells in the actual sampling process, the suction pore channel 14 is communicated with a suction cavity 17, under the condition that negative pressure is formed at the bottom of the suction cavity 17, the interior of the suction pore channel 14 is negative pressure and can suck external liquid, the sampling effect is favorably realized, a sampling rod 20 is movably arranged in the sampling cavity, the sampling rod 20 extends up and down, the top end of the sampling rod 20 is movably connected with the bottom end of the piston 16 and can move up and down along with the piston 16, the movable sampling effect is realized, and a rotary sampling mechanism is arranged on the sampling rod 20, solid or hard tumor tissue is sampled.

Specific, spacing guiding mechanism is including the spacing part of activity, guide chi 7 and activity hole 10, the inside of setting at stopper 6 is switched on from top to bottom in activity hole 10, use as upper and lower spacing passageway, guide chi 7 movable mounting is inside activity hole 10, and guide chi 7's top and 5 top side fixed surface of pull rod are connected, guide chi 7 structural strength is big, and carry out the up-and-down motion along with pull rod 5, and it is itself carried on spacingly by activity hole 10, consequently, can produce spacing motion's effect to pull rod 5, guide chi 7's surface equipartition has latch 4, latch 4 is the tooth body of indent, the surface at stopper 6 is installed to the spacing part of activity, the spacing part of activity extends to inside activity hole 10, it is spacing to carry out guide chi 7.

Further, the movable limiting component comprises a control ring 3, a clamping block 11 and a return spring 12, the clamping block 11 is movably mounted on the surface of the limiting block 6 through a through hole, the clamping block 11 can enter or be led out of the movable hole 10 under stress, the inner side end of the clamping block 11 is matched with the latch 4 to form a limiting and clamping effect, the guide ruler 7 is prevented from moving, the return spring 12 is mounted on the surface of the clamping block 11 close to the inner side end, the return spring 12 is tightly propped against the inner wall of the movable hole 10 far away from the guide ruler 7, the control ring 3 is mounted on the outer side end surface of the clamping block 11, when the pull rod 5 needs to be manually driven to move up and down under normal conditions, the control ring 3 needs to be pulled out by the other hand of a person, the elastic force of the return spring 12 is overcome, the clamping block 11 is separated from the latch 4, the whole guide ruler 7 can be stressed to move up and down along the movable hole 10, and reaches a certain position, in order to avoid overflow of sucked samples and the like caused by the movement of a subsequent piston 16, need the manual work to loosen control ring 3, reset spring 12 drives fixture block 11 card and goes into the inside spacing effect that forms of latch 4, satisfies the spacing to guide chi 7 and even pull rod 5 from this, under the circumstances of guaranteeing structural stability and intensity, can lay two sets of spacing guide mechanism around relatively.

Further, the rotary sampling mechanism comprises a spiral tooth 15, a bearing piece 18 and a guide screw hole 19, the bearing piece 18 is arranged at the joint of the bottom end of the piston 16 and the sampling rod 20, the bearing on the inner side of the bearing piece 18 can limit the sampling rod 20 up and down, the rotary motion of the sampling rod is not limited, and the sampling rod 20 can move up and down when the pull rod 5 drives the piston 16, the guide screw hole 19 is arranged at the middle position of the top of the sampling tube 1 and is of an internal thread hole body structure which is communicated up and down, the sampling rod 20 moves up and down through the guide screw hole 19, at the moment, the guide screw hole 19 can guide the sampling rod 20 to move movably, the surface of the sampling rod 20 on the inner side of the guide screw hole 19 is provided with the spiral tooth 15, the spiral tooth 15 is in threaded fit with the guide screw hole 19, and by virtue of the thread fit characteristic, the spiral tooth 15 and the guide screw hole 19 can realize the rotary motion effect when the sampling rod 20 moves up and down, the whole sampling rod 20 is promoted to rotate to drill, so that the sampling can be performed on some solid or hard tumor tissues, the actual operation is facilitated, the use of motor equipment is avoided, and the one-time use cost is low.

Furthermore, the bottom of the sampling rod 20 is provided with a micro drill bit 21 which is a concave threaded drill structure designed in a certain rotation direction, and the micro drill bit 21 can be driven to drill a solid sample downwards under the condition that the sampling rod 20 rotates, and the sample is retained in a thread groove by broken sample powder and the like, so that the sampling effect is realized.

Furthermore, the bottom end of the sampling tube 1 on one side of the suction pore channel 14 is provided with two positioning teeth 13, the surface area of the bottom end is small, the stress intensity is large, the sampling tube can act on the skin and other parts of a human body, the anti-skid positioning effect is realized, and the use of the whole sampling device is facilitated.

Further, through threaded connection between sampling tube 1 and the main casing 2, and install buckle spare 8 in the outside surface junction between sampling tube 1 and the main casing 2, buckle spare 8 is new-type for the structure of a dop and a buckle, and after sampling tube 1 and main casing 2 passed through threaded connection to a certain position, the dop can be blocked in the buckle and form spacing joining in marriage, improves the stability that the two is connected.

Furthermore, the surfaces of the main sleeves 2 on the two sides of the limiting block 6 are provided with handles 9, so that acting force can be applied to the whole main sleeve 2 conveniently and manually.

When the sampling device is used, it should be noted that, under the condition of a small sampling dose, in order to avoid the fluid in the suction duct 14 from entering the suction cavity 17, it is necessary to ensure that the sampling tube 1 and the main casing 2 are both transparent components, which is convenient for manually observing the liquid level condition inside the suction duct 14 at any time, if the sampling dose is large or only the blood is sucked, the operation is not considered, and under the condition of taking out the sample subsequently, only the pull rod 5 needs to push the piston 16 to move downwards, and then the liquid substance in the suction duct 14 is pushed out or the sampling rod 20 is made to move downwards, which is beneficial to the subsequent collection operation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a medical clinical tumour sampling device, includes sampling tube (1) and sets up the sample chamber in sampling tube (1) bottom, its characterized in that: the top end of the sampling tube (1) is detachably provided with a main sleeve (2), the interior of the main sleeve (2) is communicated with a suction cavity (17) up and down, a piston (16) is arranged in the suction cavity (17), a pull rod (5) is arranged at the top end of the piston (16), a limiting block (6) is arranged on the outer side surface of the main sleeve (2), and a limit guide mechanism is arranged between the limit block (6) and the side edge of the pull rod (5), a suction duct (14) is arranged at the bottom end of the sampling tube (1) outside the sampling cavity, the suction duct (14) extends up to the top end of the sampling tube (1), and the suction pore channel (14) is communicated with the suction cavity (17), a sampling rod (20) is movably arranged in the sampling cavity, the top end of the sampling rod (20) is movably connected with the bottom end of the piston (16), and a rotary sampling mechanism is arranged on the sampling rod (20).

2. The medical clinical tumor sampling device of claim 1, wherein: spacing guide mechanism switches on the inside that sets up at stopper (6) including activity spacing part, guide chi (7) and activity hole (10) from top to bottom in activity hole (10), guide chi (7) movable mounting is inside activity hole (10), and the top and pull rod (5) top side fixed surface of guide chi (7) are connected, the surperficial equipartition of guide chi (7) has latch (4), the surface at stopper (6) is installed to the spacing part of activity, the spacing part of activity extends to inside activity hole (10).

3. The medical clinical tumor sampling device of claim 2, wherein: the movable limiting part comprises a control ring (3), a clamping block (11) and a reset spring (12), the clamping block (11) is movably mounted on the surface of the limiting block (6) through a through hole, the inner side end of the clamping block (11) is matched with the clamping tooth (4), the surface of the clamping block (11) close to the inner side end is provided with the reset spring (12), the reset spring (12) is tightly pressed against the inner wall of a movable hole (10) far away from the guide ruler (7), and the control ring (3) is mounted on the surface of the outer side end of the clamping block (11).

4. The medical clinical tumor sampling device of claim 1, wherein: rotatory sampling mechanism includes helical tooth (15), bearing spare (18) and guide screw (19), and bearing spare (18) are installed in the junction of piston (16) bottom and thief rod (20), and guide screw (19) set up in the top intermediate position department of sampling tube (1), and thief rod (20) are through guide screw (19) activity from top to bottom, and guide screw (19) inboard thief rod (20) surface mounting has helical tooth (15).

5. The medical clinical tumor sampling device of claim 1, wherein: the bottom of the sampling rod (20) is provided with a micro drill bit (21).

6. The medical clinical tumor sampling device of claim 1, wherein: and a positioning tooth (13) is arranged at the bottom end of the sampling tube (1) on one side of the suction pore channel (14).

7. The medical clinical tumor sampling device of claim 1, wherein: the sampling tube (1) is connected with the main sleeve (2) through threads, and a buckle piece (8) is installed at the joint of the outer side surface between the sampling tube (1) and the main sleeve (2).

8. The medical clinical tumor sampling device of claim 1, wherein: handles (9) are arranged on the surfaces of the main sleeves (2) on the two sides of the limiting block (6).

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