CN211723265U - A quantitative adjustable puncture sampler for medical examination - Google Patents

Abstract

The utility model discloses a puncture sampler with adjustable medical science inspection is with ration, the sampling tube section of thick bamboo of making including transparent material, sampling tube section of thick bamboo bottom intercommunication has the sample syringe needle, and sampling tube section of thick bamboo top has cup jointed the plunger rod, and the plunger rod is at sampling tube section of thick bamboo internal motion extraction sampling, and the joint has annular quantitative stopper between plunger rod body and the sampling tube section of thick bamboo inner wall, and the rigid coupling has the ration sighting rod on the annular quantitative stopper, and the ration sighting rod is along sampling tube section of thick bamboo axial motion, and the ration sighting rod drives annular quantitative stopper and takes a sample the ration and adjust. The utility model provides a sampler can't realize the problem that the ration was adjusted when the puncture sample.

Description

A quantitative adjustable puncture sampler for medical examination

technical field

The utility model belongs to the technical field of medical inspection and sampling, and relates to a quantitative adjustable puncture sampler for medical inspection.

Background technique

Medical testing is the testing of microbiology, immunology, biochemistry, genetics, hematology, cytology and other aspects of materials taken from the human body. Usually, various types of samples need to be collected during the medical testing process. The sample types include common samples such as blood, urine, and feces, as well as rare types such as cerebrospinal fluid, amniotic fluid, bone marrow, tissue fluid, and organ effusion. Sample collection is inseparable from samplers. There are many types of samplers on the market today, which can basically meet people's needs. However, there are still some problems. Especially for puncture sampling of rare types of precious samples, the main problems in sampling are as follows: First, it is generally difficult for traditional samplers to realize the quantitative adjustment function during puncture sampling, which affects the convenience of the sampler; Precious samples in certain parts require a certain degree of accuracy during puncture sampling, and the sampling results will be affected if micro-adjustment is not possible. Finally, the traditional sampler generally does not have a sampling depth indication function during puncture sampling, so that the operator cannot accurately judge. The penetration depth of the puncture needle brings difficulty to sampling and brings pain to the patient.

Utility model content

The purpose of the utility model is to provide a quantitatively adjustable puncture sampler for medical examination, which solves the problem that the sampler cannot realize quantitative adjustment during puncture sampling.

The technical scheme adopted by the utility model is that a quantitative adjustable puncture sampler for medical examination comprises a sampling tube made of transparent material, the bottom end of the sampling tube is connected with a sampling needle, and the top of the sampling tube is sleeved with a piston Needle rod, the piston needle rod moves in the sampling tube to extract samples, a ring-shaped quantitative plug is clamped between the piston needle rod and the inner wall of the sampling tube, and a quantitative benchmark is fixed on the annular quantitative plug, and the quantitative benchmark is along the sampling tube. Axial movement, the quantitative benchmark rod drives the annular quantitative plug to perform quantitative adjustment of sampling.

The utility model is also characterized in that:

The quantitative benchmark is a transparent threaded rod with a scale inside. The top of the sampling tube is provided with a threaded hole. One end of the transparent threaded rod is fixed with the annular quantitative plug, and the other end is connected with the threaded hole. The threaded rod rotates in the threaded hole along the Axial movement of the sample tube.

The side surface of the annular quantitative plug is provided with a groove along the circumferential direction, and a universal roller is hinged inside the groove, and the annular quantitative plug slides along the inner wall of the sampling tube through the universal roller.

A fine-tuning screw barrel is detachably connected to the outside of the top of the sampling tube, and a fine-tuning screw is connected to the inner thread of the fine-tuning screw. One end of the fine-tuning screw is located inside the sampling tube and is fixedly connected with the piston needle rod. The screw barrel is provided with a rotation scale along the circumferential direction, and the fine adjustment screw drives the movement of the piston needle rod to perform micro-adjustment through rotation.

The outer side of the top of the sampling tube and the fine-tuning screw can be detachably connected by an arc-shaped buckle. The outer side of the top of the sampling tube is evenly spaced with a plurality of arc-shaped slots, and the fine-tuning screw is fixed with a plurality of arcs. Buckles, each arc-shaped buckle is correspondingly clamped in an arc-shaped clip slot, and the arc length between each adjacent two arc-shaped clip slots is greater than the arc length of one arc-shaped clip.

The sampling needle is provided with a scale along the axial direction, the sampling needle is horizontally sleeved with a bracket, the bracket moves on the sampling needle through the adjustment component, and the two ends of the bracket are provided with placement grooves on the side facing the sampling needle, and the top wall of the placement groove is fixedly connected There is a touch-sensing light sheet, a balloon is connected between two walls of the placement groove, and the center line of the touch-sensing light sheet coincides with the center line of the balloon.

The adjustment assembly includes a threaded clamping groove opened on the sampling needle in the axial direction, and the bracket is connected to the sampling needle through the adjustment screw in cooperation with the threaded clamping groove to adjust the position.

The beneficial effect of the present utility model is,

(1) a kind of quantitative adjustable puncture sampler for medical examination of the present utility model is provided with an annular quantitative plug and a quantitative benchmark, and the quantitative benchmark moves axially along the sampling tube to drive the annular quantitative plug to move up and down along the inner sidewall of the sampling tube, To realize the quantitative adjustment function of the sampler when sampling, and improve the convenience of the sampler;

(2) A quantitative adjustable puncture sampler for medical inspection of the present utility model is provided with a fine-tuning screw barrel and a fine-tuning screw, and the piston rod can be moved up and down in a small amount in the sampling barrel by rotating the rotating handle, thereby realizing the sampler. the accuracy of sampling;

(3) A quantitative adjustable puncture sampler for medical examination of the present utility model is provided with a bracket and a balloon on it, and a touch sensor light sheet is used, and the sampling needle is used to puncture and sample, and the balloon is squeezed by the skin to make the The touch-sensitive light sheet illuminates to indicate that the puncture has reached the preset depth, thus realizing the indication function of the sampling depth.

Description of drawings

1 is a cross-sectional view of a quantitative adjustable puncture sampler for medical examination of the present utility model;

2 is a schematic diagram of the connection between the fine-tuning screw barrel and the tube barrel in a quantitatively adjustable puncture sampler for medical testing of the present invention;

FIG. 3 is a partial enlarged view of part A of FIG. 1 .

In the figure, 1. Sampling tube, 2. Piston needle rod, 3. Annular quantitative plug, 4. Groove, 5. Quantitative benchmark, 6. Rotating scale, 7. Fine-tuning screw barrel, 8. Rotating handle, 9. Arc Snap, 901. Arc-shaped slot, 11. Fine adjustment screw, 12. Universal roller, 14. Placement slot, 15. Sampling needle, 18. Bracket, 19. Balloon, 21. Touch sensor light sheet, 22 . Thread slot, 23. Adjusting screw.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

The structure of a quantitatively adjustable puncture sampler for medical inspection of the present invention is shown in Figure 1, comprising a sampling tube 1 made of transparent material, the bottom end of the sampling tube 1 is connected with a sampling needle 15, and the top of the sampling tube 1 is connected A piston needle rod 2 is sleeved, the piston needle rod 2 moves in the sampling tube 1 to extract samples, and an annular quantitative plug 3 is clamped between the piston needle rod 2 and the inner wall of the sampling tube 1, and the annular quantitative plug 3 is fixed on the A quantitative benchmark rod 5 is connected, the quantitative benchmark rod 5 moves axially along the sampling tube 1, and the quantitative benchmark rod 5 drives the annular quantitative plug 3 to perform quantitative adjustment of sampling.

Further, the quantitative benchmark 5 is a transparent threaded rod with a scale inside, and the top of the sampling tube 1 is provided with a threaded hole, one end of the transparent threaded rod is fixedly connected with the annular quantitative plug 3, and the other end is cooperatively connected with the threaded hole, and the threaded rod passes through. Rotation in the threaded hole moves axially along the sampling tube 1 .

Preferably, in order to make the annular quantitative plug 3 move better in the sampling tube 1 under the driving of the quantitative benchmark 5, a groove 4 is provided on the side of the annular quantitative plug 3 along the circumferential direction, and a universal roller 12 is hinged inside the groove 4. , the annular quantitative plug 3 slides along the inner wall of the sampling tube 1 through the universal roller 12 .

Further, as shown in FIG. 2 , a fine-tuning screw barrel 7 is detachably connected to the outside of the top end of the sampling tube 1, and a fine-tuning screw 11 is threaded in the fine-tuning screw barrel 7. One end of the fine-tuning screw 11 is located inside the sampling tube 1 and is connected with the piston needle. The rod 2 is fixedly connected, the other end of the fine-tuning screw 11 is fixedly connected with a rotating handle 8, and the fine-tuning screw barrel 7 is provided with a rotation scale 6 along the circumferential direction.

Preferably, in order to make the connection between the sampling tube 1 and the fine-tuning screw barrel 7 firm and easy to disassemble, the outer top of the sampling tube 1 and the fine-tuning screw 7 are detachably connected through an arc-shaped buckle 9, and the outer side of the top of the sampling tube 1 There are a plurality of arc-shaped clip slots 901 evenly spaced on the upper surface, and a plurality of arc-shaped clips 9 are fixedly connected to the fine adjustment screw barrel 7. In order to facilitate the arc-shaped clips 9 to be smoothly clamped into an arc-shaped slot 901, the arc-shaped clips 9 should first fall between each adjacent arc-shaped slot 901 and then rotate into the arc-shaped slot 901. The arc length between each adjacent two arc-shaped clip slots 901 is greater than that of one arc-shaped clip 9 .

Further, as shown in FIG. 3 , the sampling needle 15 is provided with a scale along the axial direction, the sampling needle 15 is sleeved with a bracket 18 horizontally, the bracket 18 moves on the sampling needle 15 through the adjustment assembly, and both ends of the bracket 18 face the sampling needle. One side of the 15 is provided with a placement slot 14, the top wall of the placement slot 14 is fixed with a touch sensing light sheet 21, and a balloon 19 is connected between the two walls of the placement slot 14. The touch-sensitive light sheet 21 does not deflect when it is in full contact, and the center line of the touch-sensitive light sheet 21 coincides with the center line of the balloon 19 .

Preferably, the adjustment assembly includes a threaded groove 22 provided on the sampling needle 15 in the axial direction, and the bracket 18 is connected to the sampling needle 15 through the adjustment screw 23 in cooperation with the threaded groove 22 to adjust the position.

The working principle of the quantitative adjustable puncture sampler for medical examination of the present utility model is as follows: by rotating the quantitative benchmark rod 5, it moves along the axial direction of the sampling tube 1 to drive the annular quantitative plug 3 fixed to it along the sampling tube. The inner side wall of 1 moves up and down to the position required for quantification. When moving, the friction force when the annular quantitative plug 3 moves up and down is reduced by the rolling cooperation of the groove 4 and the universal roller 12, so as to realize the quantitative adjustment function of the sampler when sampling. By rotating the fine-tuning screw barrel 7, the arc-shaped buckle 9 at its bottom is in contact with the surface between the adjacent arc-shaped clip grooves 901, and then the fine-tuning screw barrel 7 is rotated after the contact, so that the arc-shaped buckle 9 is stuck into the arc The inside of the slot 901 fixes the fine-tuning screw barrel 7, and then rotates the rotating handle 8 to drive the piston needle rod 2 to move up slightly, so as to realize the micro-adjustment function when the sampler is sampling; The surface of the groove 22 is loosened, and then the sliding bracket 18 is moved to the desired depth along the sampling needle 15, and then the adjusting screw 23 is rotated to fix it. Then, when the sampler is sampling, the sampling needle 15 reaches the preset value when the needle is punctured. When the depth is reached, the pressure of the balloon 19 and the patient's skin causes the balloon 19 to move upward to contact the touch-sensitive light sheet 21 on the surface of the placement groove 14 and cause it to light up to indicate the sampling depth.

Claims (7)

1. A quantitatively adjustable puncture sampler for medical examination, characterized in that it comprises a sampling tube (1) made of a transparent material, and the bottom end of the sampling tube (1) is communicated with a sampling needle (15), so The top of the sampling tube (1) is sleeved with a piston needle rod (2), the piston needle rod (2) moves in the sampling tube (1) to extract samples, and the piston needle rod (2) shaft is connected to the sampling tube (1). An annular quantitative plug (3) is clamped between the inner walls of the tube (1), and a quantitative benchmark (5) is fixed on the annular quantitative plug (3). 1) Axial movement, the quantitative benchmark (5) drives the annular quantitative plug (3) to perform quantitative adjustment of sampling. 2. A kind of quantitative adjustable puncture sampler for medical examination according to claim 1, characterized in that, the quantitative benchmark (5) is a transparent threaded rod with a scale inside, and the sampling tube (1) The top end is provided with a threaded hole, one end of the transparent threaded rod is fixedly connected with the annular quantitative plug (3), and the other end is connected with the threaded hole, and the threaded rod rotates in the threaded hole along the sampling tube (3). 1) Axial movement. 3. A kind of quantitative adjustable puncture sampler for medical examination according to claim 1, characterized in that, a groove (4) is provided on the side of the annular quantitative plug (3) along the circumferential direction, and the groove ( 4) A universal roller (12) is hinged inside, and the annular quantitative plug (3) slides along the inner wall of the sampling tube (1) through the universal roller (12). 4. A kind of quantitative adjustable puncture sampler for medical examination according to claim 1, characterized in that, a fine-tuning screw barrel (7) is detachably connected to the outer side of the top of the sampling tube (1), and the fine-tuning screw The inner thread of the barrel (7) is connected with a fine-tuning screw (11). One end of the fine-tuning screw (11) is located inside the sampling tube barrel (1) and is fixedly connected with the piston needle rod (2). The fine-tuning screw (11) The other end is fixedly connected with a rotating handle (8), the fine adjustment screw barrel (7) is provided with a rotation scale (6) along the circumferential direction, and the fine adjustment screw (11) drives the piston needle rod (2) to move for micro-adjustment through rotation. adjust. 5. A kind of quantitative adjustable puncture sampler for medical examination according to claim 4, characterized in that, an arc-shaped buckle ( 9) For detachable connection, a plurality of arc-shaped clip slots (901) are evenly spaced on the outer side of the top end of the sampling tube (1), and a plurality of arc-shaped clips are fixedly connected to the fine adjustment screw barrel (7). Buckles (9), each of the arc-shaped buckles (9) is correspondingly clamped in an arc-shaped slot (901), and the arc length between each adjacent two arc-shaped slots (901) is greater than The arc length of an arc buckle (9). 6 . The quantitatively adjustable puncture sampler for medical inspection according to claim 1 , wherein the sampling needle (15) is provided with a scale along the axial direction, and the sampling needle (15) is sleeved horizontally. 7 . There is a bracket (18), the bracket (18) moves on the sampling needle (15) through the adjusting assembly, and the two ends of the bracket (18) are provided with placement grooves (14) on the side facing the sampling needle (15), A touch-sensitive light sheet (21) is fixedly connected to the top wall of the placement groove (14), a balloon (19) is connected between two walls of the placement groove (14), and the touch-sensitive light sheet (21) ) coincides with the centerline of the balloon (19). 7. The quantitatively adjustable puncture sampler for medical inspection according to claim 6, wherein the adjustment assembly comprises a threaded groove (22) opened along the axial direction on the sampling needle (15), so that the The bracket (18) is connected to the sampling needle (15) through the adjustment screw (23) in cooperation with the threaded clamping groove (22) to adjust the position.

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