CN216317729U - Marrow puncture extraction device for blood internal medicine - Google Patents

Abstract

The utility model relates to the technical field of medical instruments and discloses a bone marrow puncture and extraction device for the blood internal medicine, which comprises a needle tube and a fixed block, wherein a plunger is movably connected in the needle tube, an operating rod is fixedly installed on the upper side of the plunger, a circular groove is formed in the fixed block, a through groove is formed in the lower inner wall of the circular groove, a needle head of the needle tube is inserted into a patient body through the through groove, the needle tube moves downwards, when a moving ring contacts the arc surfaces of two sliding blocks, the two sliding blocks are driven to move towards the directions away from each other by continuously moving downwards, when the moving ring contacts the lower inner wall of the circular groove, the two sliding blocks are driven to move towards the directions close to each other by the resilience of two pressure springs, so that the lower sides of the two sliding blocks are attached to the upper side of the moving ring to fix the moving ring, and the needle tube is prevented from shaking to increase the pain of the patient when a sample is extracted, meanwhile, the puncture depth can be limited by adjusting the position of the moving ring.

Description

Marrow puncture extraction device for blood internal medicine

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a bone marrow puncture and extraction device for a blood internal medicine.

Background

Prior publication No. CN205041448U discloses a bone marrow puncture and aspiration device for hematology department. The inner needle comprises an inner puncture needle, an outer puncture needle is sleeved outside the inner puncture needle, an anesthetic liquid cavity is formed between the outer puncture needle and the inner puncture needle, the inner puncture needle is fixed on an inner needle base, the outer puncture needle is fixed on an outer needle base, the inner needle base is fixedly connected with the outer needle base, the inner puncture needle is communicated with an inner needle cylinder which is inserted at the tail part of the inner needle base, an inner piston is arranged in the inner needle cylinder, the inner piston is connected with an inner push rod, the outer puncture needle is communicated with an outer needle cylinder which is sleeved outside the inner needle cylinder, an annular cavity is formed between the outer needle cylinder and the inner needle cylinder, an annular outer piston is arranged in the annular cavity, the annular outer piston is connected with an outer push rod, an inner stop block capable of blocking the inner push rod to slide is arranged on the inner wall of the inner needle cylinder, and an outer stop block capable of blocking the outer push rod to slide is arranged on the inner wall of the outer needle cylinder. Has the advantages that: reasonable in design, simple structure.

Most of the existing bone marrow puncture and extraction devices are manually operated by medical staff to perform bone marrow puncture and extraction treatment on patients, so that after a needle tube of the bone marrow puncture device is inserted into the body of the patient, the needle tube of the bone marrow puncture device shakes due to the error of the medical staff, and the pain of the patient is increased.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a bone marrow puncture extracting device for a blood internal medicine, which has the advantages of avoiding the phenomenon that a needle tube shakes to increase the pain of a patient when a sample is extracted, and simultaneously limiting the puncture depth by adjusting the position of a moving ring, and the like, and solves the problem that most of bone marrow puncture extracting devices are manually operated by medical personnel to extract the bone marrow of the patient, so that after the needle tube of the bone marrow puncture device is inserted into the body of the patient, the needle tube of the bone marrow puncture device shakes to increase the pain of the patient due to the error of the medical personnel.

(II) technical scheme

In order to avoid the problem that the needle tube shakes to increase the pain of a patient when a sample is extracted and simultaneously limit the puncture depth by adjusting the position of the moving ring, the utility model provides the following technical scheme: the utility model provides a marrow puncture draw-out device for hematology department, including needle tubing and fixed block, swing joint has the chock in the needle tubing, chock upside fixed mounting has the control pole, the circular slot has been seted up on the fixed block, logical groove has been seted up to the lower inner wall of circular slot, fixed cover has connect fixed pipe on the needle tubing, fixed pipe and logical groove swing joint, the shift ring has been cup jointed in the activity on the fixed pipe, the screw thread has been seted up to the shift ring inside wall, fixed pipe lateral wall is seted up threadedly, the shift ring is connected with the shift ring meshing, two spouts have been seted up to the circular slot inside wall, equal fixed mounting has pressure spring in two spouts, the equal fixed mounting of one end that two pressure spring are close to each other has the slider, one side that two sliders are close to each other is the arcwall.

Preferably, the needle tubing upper end fixed mounting has solid fixed ring, and swing joint has the rotating tube in the solid fixed ring, and the rotating tube lateral wall is seted up threadedly, and gu fixed ring inside wall is seted up threadedly, the rotating tube is connected with solid fixed ring meshing.

Preferably, a circular plate is fixedly mounted at the lower end of the rotating pipe, and the circular plate is movably sleeved on the control rod.

Preferably, the rotating pipe is fixedly sleeved with a round pipe, the upper side of the round pipe is fixedly provided with a small strip, and the small strip is attached to the control rod.

Preferably, the lower side of the fixing block is provided with an arc-shaped groove.

(III) advantageous effects

Compared with the prior art, the utility model provides a bone marrow puncture and extraction device for a blood internal medicine, which has the following beneficial effects:

1. the bone marrow puncture extracting device for the blood internal medicine is characterized in that the lower side of a fixed block is attached to the skin of a part needing puncturing by a patient, then the fixed block is fixed on a sickbed, and then a moving ring is rotated, so that the moving ring can move up and down to adjust the position of the moving ring, after the position of the moving ring is adjusted, a needle head of a needle tube is inserted into the body of the patient through a through groove, the needle tube moves downwards along with the needle tube, when the moving ring contacts the arc surfaces of two sliding blocks, the two sliding blocks are driven to move towards the direction away from each other by continuously moving downwards, when the moving ring contacts the lower inner wall of a circular groove, the two pressure springs rebound respectively drive the two sliding blocks to move towards the direction close to each other, so that the lower sides of the two sliding blocks are attached to the upper side of the moving ring to fix the moving ring, and further avoid the pain of the patient caused by the shaking of the needle tube when a sample is extracted, meanwhile, the puncture depth can be limited by adjusting the position of the moving ring.

2. This bone marrow puncture draw-out device for hematology department just can drive the plectane through rotatory rotating tube and reciprocate to can adjust the position of plectane, when the upward movement control lever drove chock rebound and draw the sample, the chock will stop moving when removing plectane department, thereby can restrict the volume of drawing the sample through the position of adjustment plectane.

3. This marrow puncture draw-out device for blood internal medicine can avoid the rotatory pipe of user to be damaged by the screw thread on the rotatory pipe through the pipe, can be through setting up the scale on will controlling the pole simultaneously, then judge the volume of restriction absorption through the position of small strip, can improve the stability that fixed block and patient skin laminating effect improve device through the arc wall of fixed block downside.

Drawings

FIG. 1 is a schematic front perspective view of the present invention;

FIG. 2 is a schematic front sectional perspective view of the present invention;

FIG. 3 is a schematic cross-sectional front perspective view of the fixing block of FIG. 1 according to the present invention;

FIG. 4 is a perspective view of the needle cannula of FIG. 1 according to the present invention.

In the figure: 1. a needle tube; 2. a fixed block; 3. a fixed tube; 4. a circular groove; 5. a fixing ring; 6. rotating the tube; 7. a circular tube; 8. a control lever; 9. small strips; 10. a moving ring; 11. a circular plate; 12. a chute; 13. a pressure spring; 14. a slider; 15. a through groove; 16. an arc-shaped slot; 17. and (6) a chock block.

Detailed Description

The present invention will be described in further detail with reference to the drawings, wherein like elements are designated by like reference numerals, wherein the terms "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular element.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-4, the present invention provides a technical solution: a bone marrow puncture extracting device for a blood internal medicine comprises a needle tube 1 and a fixed block 2, wherein a chock 17 is movably connected in the needle tube 1, a control rod 8 is fixedly installed on the upper side of the chock 17, a circular groove 4 is formed in the fixed block 2, a through groove 15 is formed in the lower inner wall of the circular groove 4, a fixed tube 3 is fixedly sleeved on the needle tube 1, the fixed tube 3 is movably connected with the through groove 15, a movable ring 10 is movably sleeved on the fixed tube 3, a thread is formed in the inner side wall of the movable ring 10, a thread is formed in the outer side wall of the fixed tube 3, the movable ring 10 is meshed and connected with the movable ring 10, two sliding grooves 12 are formed in the inner side wall of the circular groove 4, pressure springs 13 are fixedly installed in the two sliding grooves 12, a sliding block 14 is fixedly installed at one end, which is close to each other, one side, which is close to each other, of the two sliding blocks 14 is an arc-shaped surface, and the lower side of the fixed block 2 is attached to the skin of a part, which needs puncture of a patient, then fixing the fixed block 2 on the sickbed, rotating the moving ring 10 to move the moving ring 10 up and down to adjust the position of the moving ring 10, inserting the needle of the needle tube 1 into the patient through the through slot 15 after the position of the moving ring 10 is adjusted, moving the moving ring 10 downward along with the needle tube 1, moving the two sliders 14 in the direction away from each other when the moving ring 10 contacts the arc surfaces of the two sliders 14, moving the two sliders 14 in the direction approaching each other when the moving ring 10 contacts the lower inner wall of the circular slot 4, respectively driving the two sliders 14 to move in the direction approaching each other by the resilience of the two pressure springs 13, so that the lower sides of the two sliders 14 are attached to the upper side of the moving ring 10 to fix the moving ring 10, thereby fixing the needle tube 1 to avoid the phenomenon that the needle tube 1 shakes to increase the pain of the patient when a sample is extracted, and limiting the depth of puncture by adjusting the position of the moving ring 10, fixed ring 5 is fixed to 1 upper end of needle tubing, swing joint has rotating tube 6 in the fixed ring 5, 6 lateral walls of rotating tube have been seted up threadedly, 5 inside walls of fixed ring have been seted up threadedly, rotating tube 6 is connected with the meshing of fixed ring 5, the lower extreme fixed mounting of rotating tube 6 has plectane 11, plectane 11 activity cup joints at control lever 8, just can drive plectane 11 through rotatory rotating tube 6 and reciprocate, thereby can adjust the position of plectane 11, when upwards remove control lever 8 drives plug block 17 rebound and extracts the sample, plug block 17 will stop moving when removing plectane 11 department, thereby can restrict the volume of absorbing the sample through the position of adjustment plectane 11.

In use, the first step: the lower side of the fixed block 2 is attached to the skin of a part needing to be punctured by a patient, then the fixed block 2 is fixed on a sickbed, and then the moving ring 10 is rotated, so that the moving ring 10 can move up and down to adjust the position of the moving ring 10, after the position of the moving ring 10 is adjusted, the needle head of the needle tube 1 is inserted into the patient through the through groove 15, along with the downward movement of the needle tube 1, when the moving ring 10 contacts the arc surfaces of the two sliders 14, the downward movement is continued to drive the two sliders 14 to move towards the direction away from each other, when the moving ring 10 contacts the lower inner wall of the circular groove 4, the rebounding of the two pressure springs 13 respectively drive the two sliders 14 to move towards the direction close to each other, so that the lower sides of the two sliders 14 are attached to the upper side of the moving ring 10 to fix the moving ring 10, thus the needle tube 1 can be fixed, thereby avoiding the pain increase of the patient caused by the needle tube 1 when a sample is extracted, while the depth of penetration can be limited by adjusting the position of the shift ring 10.

The second step is that: the circular plate 11 can be driven to move up and down by rotating the rotating pipe 6, so that the position of the circular plate 11 can be adjusted, when the plug block 17 is driven to move up to extract a sample by moving the operating rod 8 upwards, the plug block 17 stops moving when moving to the circular plate 11, and the amount of the sample absorbed can be limited by adjusting the position of the circular plate 11.

Example two

Please refer to fig. 1-4 on the basis of embodiment one, the pipe 7 has been cup jointed to the last fixed of rotatory pipe 6, 7 upside fixed mounting of pipe have little 9, little 9 and the laminating of control lever 8, arc wall 16 has been seted up to the downside of fixed block 2, can avoid the user to be damaged by the screw thread on the rotatory pipe 6 when rotatory pipe 6 through pipe 7, simultaneously can be through setting up the scale on the control lever 8, then judge the volume of restriction absorption through the position of little 9, arc wall 16 through the 2 downside of fixed block can improve the stability of fixed block 2 and patient's skin laminating effect improving means.

When using, can avoid the rotatory screw thread damage on the rotatory pipe 6 of user by the rotatory pipe 6 through pipe 7, can be through setting up the scale on the control lever 8 simultaneously, then judge the volume of restriction absorption through the position of strip 9, can improve the stability that fixed block 2 and patient skin laminating effect improve device through arc wall 16 of fixed block 2 downside.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a bone marrow puncture draw-out device for hematology dept, includes needle tubing (1) and fixed block (2), swing joint has chock (17) in needle tubing (1), and chock (17) upside fixed mounting has control lever (8), its characterized in that: seted up circular slot (4) on fixed block (2), logical groove (15) have been seted up to the lower inner wall of circular slot (4), fixed cup joints fixed pipe (3) on needle tubing (1), fixed pipe (3) and logical groove (15) swing joint, shift ring (10) have been cup jointed in the activity on fixed pipe (3), screw thread has been seted up to shift ring (10) inside wall, fixed pipe (3) lateral wall has seted up the screw thread, shift ring (10) are connected with shift ring (10) meshing, two spout (12) have been seted up to circular slot (4) inside wall, equal fixed mounting has pressure spring (13) in two spout (12), the equal fixed mounting of one end that two pressure spring (13) are close to each other has slider (14), one side that two slider (14) are close to each other is the arcwall face.

2. The bone marrow puncture extracting device for hematology department according to claim 1, characterized in that: needle tubing (1) upper end fixed mounting has solid fixed ring (5), and swing joint has rotating tube (6) in solid fixed ring (5), and rotating tube (6) lateral wall is seted up threadedly, and solid fixed ring (5) inside wall is seted up threadedly, and rotating tube (6) are connected with solid fixed ring (5) meshing.

3. The bone marrow puncture extracting device for hematology department according to claim 2, characterized in that: the lower end of the rotating pipe (6) is fixedly provided with a circular plate (11), and the circular plate (11) is movably sleeved on the operating rod (8).

4. The bone marrow puncture extracting device for hematology department according to claim 2, characterized in that: the rotary pipe (6) is fixedly sleeved with a round pipe (7), a small strip (9) is fixedly mounted on the upper side of the round pipe (7), and the small strip (9) is attached to the control rod (8).

5. The bone marrow puncture extracting device for hematology department according to claim 1, characterized in that: an arc-shaped groove (16) is formed in the lower side of the fixing block (2).

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