CN213714844U - A clinical sampling device for pathological medicine - Google Patents

Abstract

Translated fromChinese

本实用新型公开了一种病理医学临床用取样装置，包括针筒，针筒的底部连通有穿刺针，针筒内滑动连接有活塞，针筒内从底部向上设置有限位滑条，活塞的外壁开设有与限位滑条配合滑动连接的限位滑槽，针筒内于限位滑条的上端设置有连接塞，贯穿连接塞开设有螺纹孔，螺纹孔内螺纹连接有螺纹推杆，螺纹推杆的下端与活塞转动连接，活塞的下端连接有取样针，取样针设置于穿刺针内且与之滑动连接，取样针远离活塞一端的侧边向内开设有取样槽，取样槽的下侧设置有斜向上的倒钩。本实用新型将取样针通过旋转的方式推进或推出取样，操作方便顺手，易于控制精度。

The utility model discloses a clinical sampling device for pathological medicine, comprising a needle cylinder, a puncture needle is communicated with the bottom of the needle cylinder, a piston is slidably connected in the needle cylinder; A limit chute is provided for sliding connection with the limit slider, a connecting plug is arranged on the upper end of the limit slider in the needle cylinder, a threaded hole is opened through the connecting plug, and a threaded push rod is threaded in the threaded hole. The lower end of the push rod is rotatably connected with the piston, the lower end of the piston is connected with a sampling needle, the sampling needle is arranged in the puncture needle and is slidably connected with it, a sampling groove is opened inward from the side of one end of the sampling needle away from the piston, and the lower side of the sampling groove Provided with barbs that are inclined upward. In the utility model, the sampling needle is pushed or pushed out for sampling by means of rotation, the operation is convenient and the precision is easy to be controlled.

Description

Clinical sampling device that uses of pathological medicine

Technical Field

The utility model relates to the technical field of medical equipment, in particular to clinical sampling device that uses of pathological medicine.

Background

Pathological examination is a pathomorphological method for examining pathological changes in organs, tissues or cells of the body. In order to study the disease process of organs, tissues or cells, some kind of pathological morphological examination method can be used to examine the pathological changes of them, study the cause, pathogenesis and the process of pathological changes, and finally make pathological diagnosis. The pathological morphological examination method is that the pathological change of the general specimen is observed, then the pathological tissue with certain size is cut out, the pathological section is made by the pathological histological method, and the pathological change is further examined by a microscope.

The sampling of pathological tissue mostly adopts the mode of puncture to take a sample, wherein puncture sample adopts and to have a sampling needle that has the barb to take a sample in pjncture needle endotheca, but among the prior art, the wearing out or the indentation of sampling needle relative pjncture needle are difficult to control, can only rely on the direct hand propulsion or the ejecting of doctor, and it is not smooth during the operation to be difficult to control the operation precision.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a clinical sampling device that uses of pathological medicine impels or releases the sample through rotatory mode with the sampling needle, and convenient operation is handy, easily control accuracy.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a clinical sampling device that uses of pathological medicine, includes the cylinder, the bottom intercommunication of cylinder has the pjncture needle, sliding connection has the piston in the cylinder, upwards be provided with spacing draw runner from the bottom in the cylinder, the outer wall of piston seted up with spacing draw runner cooperation sliding connection's spacing spout, in the cylinder in the upper end of spacing draw runner is provided with the connecting plug, runs through connecting plug set up threaded hole, threaded hole female connection has the screw thread push rod, the lower extreme of screw thread push rod with the piston rotates to be connected, the lower extreme of piston is connected with the sample needle, the sample needle set up in just sliding connection with it in the pjncture needle, the sample needle is kept away from the sample groove has inwards been seted up to the side of piston one end, the downside in sample groove is provided with the ascending barb.

Through adopting above-mentioned technical scheme, during the puncture sample, at first rotate the screw thread push rod, in retreating the pjncture needle with the sampling needle, penetrate patient's pathological change tissue department through the pjncture needle afterwards, rotate the screw thread push rod, release the pjncture needle with the sampling needle, the in-process of rotating the screw thread push rod, because the cooperation of spacing draw runner and spacing spout makes the piston can not rotate, can only advance or retreat, prevent that the sampling needle from rotating and bring the unnecessary damage for the patient, after the sampling needle is worn out completely in the sample groove, it makes the sample needle retreat to rotate the screw thread push rod, drive the barb and catch on the sample tissue, and bring it into the pjncture needle along with the sample groove, extract the pjncture needle, just can obtain the.

The utility model discloses a further set up to: the top of the piston is downwards provided with a rotating hole with an inverted T-shaped section, and the lower end of the threaded push rod is provided with a rotating connector which is rotatably connected with the rotating hole and has an inverted T-shaped section.

The utility model discloses a further set up to: the tip ends of the puncture needle and the sampling needle are provided with oblique planes which are coincident with each other.

The utility model discloses a further set up to: and a push handle is arranged at the upper end of the threaded push rod.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses a screw thread push rod releases the sampling needle or moves back into the pjncture needle, and the doctor operates more handy to be convenient for control release moves back into the degree of depth, makes the sampling needle can not rotate at flexible in-process through the cooperation of spacing draw runner and spacing spout simultaneously, prevents effectively that the sampling needle from rotating and bring the unnecessary damage for the patient.

Drawings

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

fig. 2 is a partial cross-sectional view of the present invention;

fig. 3 is a sectional view for showing the connection relationship of the piston and the threaded push rod.

In the figure: 1. a needle cylinder; 11. a limiting slide bar; 2. puncturing needle; 3. a piston; 31. a limiting chute; 32. hole turning; 4. a connecting plug; 5. a threaded push rod; 51. rotating the connector; 52. a push handle; 6. a sampling needle; 61. a sampling groove; 62. and (6) barb.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The embodiment is a clinical sampling device for pathological medicine, and referring to fig. 1-3, the clinical sampling device comprises a needle cylinder 1, the bottom of the needle cylinder 1 is communicated with apuncture needle 2, apiston 3 is connected in the needle cylinder 1 in a sliding manner, fourlimiting slide bars 11 are arranged in the needle cylinder 1 from the bottom upwards, and fourlimiting slide grooves 31 which are matched and connected with thelimiting slide bars 11 in a sliding manner are arranged on the outer wall of thepiston 3. A connecting plug 4 is arranged at the upper end of thelimiting slide bar 11 in the needle cylinder 1, a threaded hole (not shown) is formed in the connecting plug 4 in a penetrating way, a threadedpush rod 5 is connected with the threaded hole in an internal thread mode, and apush handle 52 is arranged at the upper end of the threadedpush rod 5; the lower end of the threadedpush rod 5 is rotatably connected with thepiston 3, the top of thepiston 3 is downwards provided with arotating hole 32 with an inverted T-shaped section, and the lower end of the threadedpush rod 5 is provided with arotating connector 51 which is rotatably connected with the rotatinghole 32 and has an inverted T-shaped section. The lower extreme ofpiston 3 is connected with asampling needle 6, andsampling needle 6 sets up inpjncture needle 2 and sliding connection with it, andsampling needle 6 keeps away from the side ofpiston 3 one end and inwards has seted up asample groove 61, and the downside ofsample groove 61 is provided with anascending barb 62 in slant, and the pointed end ofpjncture needle 2 andsampling needle 6 all is provided with the scarf of coincidence mutually.

The use method comprises the following steps: during the puncture sample, at first rotate screwthread push rod 5, withdraw intopjncture needle 2 withsampling needle 6 in, penetrate patient's pathological change tissue department throughpjncture needle 2 afterwards, rotate screwthread push rod 5, releasepjncture needle 2 withsampling needle 6, the in-process of rotating screwthread push rod 5, because the cooperation of spacingdraw runner 11 and spacingspout 31 makespiston 3 can not rotate, can only advance or retreat, prevent thatsampling needle 6 from rotating and bring unnecessary damage for the patient, aftersampling groove 61 worn outsampling needle 6 completely, it makessampling needle 6 retreat to rotate screwthread push rod 5, drivebarb 62 and catch on the sample tissue, and bring it intopjncture needle 2 along withsampling groove 61, extractpjncture needle 2, just can obtain the sample tissue after pushing outsampling groove 61.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (4)

1. A clinical sampling device that uses of pathological medicine, includes cylinder (1), its characterized in that: the bottom of the needle cylinder (1) is communicated with a puncture needle (2), a piston (3) is connected in the needle cylinder (1) in a sliding manner, a limiting sliding strip (11) is upwards arranged in the needle cylinder (1) from the bottom, a limiting sliding chute (31) which is matched and slidably connected with the limiting sliding strip (11) is formed in the outer wall of the piston (3), a connecting plug (4) is arranged at the upper end of the limiting sliding strip (11) in the needle cylinder (1), a threaded hole penetrates through the connecting plug (4) and is provided with a threaded push rod (5), the lower end of the threaded push rod (5) is rotatably connected with the piston (3), the lower end of the piston (3) is connected with a sampling needle (6), the sampling needle (6) is arranged in the puncture needle (2) and is slidably connected with the puncture needle, a side edge of one end, far away from the piston (3), of the sampling needle (6) is inwards provided with a, an upward inclined barb (62) is arranged on the lower side of the sampling groove (61).

2. The clinical sampling device of pathological medicine according to claim 1, wherein: the top of the piston (3) is downwards provided with a rotating hole (32) with an inverted T-shaped section, and the lower end of the threaded push rod (5) is provided with a rotating connector (51) which is rotatably connected with the rotating hole (32) and has an inverted T-shaped section.

3. The clinical sampling device of pathological medicine according to claim 1, wherein: the tips of the puncture needle (2) and the sampling needle (6) are provided with oblique planes which are overlapped.

4. The clinical sampling device of pathological medicine according to claim 1, wherein: the upper end of the threaded push rod (5) is provided with a push handle (52).

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