CN109381226B

CN109381226B - Bone marrow puncture and extraction device for hematology department

Info

Publication number: CN109381226B
Application number: CN201811516900.6A
Authority: CN
Inventors: 王岩
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2018-07-30
Filing date: 2018-12-12
Publication date: 2021-01-26
Anticipated expiration: 2038-12-12
Also published as: CN109381226A

Abstract

The invention discloses a bone marrow puncture and extraction device for hematology department, which comprises an outer cylinder body and a chassis, wherein the inner cylinder body is fixedly connected inside the outer cylinder body, a first piston is slidably connected between the inner surface of the outer cylinder body and the outer surface of the inner cylinder body, a push cylinder is fixedly connected to the top of the first piston and sleeved outside the inner cylinder body, the top end of the push cylinder extends to the outside of the outer cylinder body, and a first push plate is fixedly connected to the top end of the push cylinder. This hematology department marrow puncture draw-out device, syringe needle and outer syringe needle use in setting up outer barrel and interior barrel cooperation, the internal anaesthetic of being used for of urceolus, the internal marrow sample of depositing that is used for of inner tube, can not contain the anaesthetic in the marrow that makes the extraction, can not influence the quality of marrow, and can promote first piston and second piston slip respectively through pushing away a section of thick bamboo and cross push rod and be used for injecting the anaesthetic and extracting the marrow, can not mutual interference, convenient to use.

Description

Bone marrow puncture and extraction device for hematology department

Technical Field

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

Background

Bone marrow is a hematopoietic tissue in the human body and is located in the medullary cavity and all cancellous bone of long bones. Adult bone marrow is divided into two types: red bone marrow and yellow bone marrow. Red bone marrow produces red blood cells, platelets and various white blood cells. The blood platelet has hemostatic effect, and the leukocyte can kill and inhibit various pathogens, including bacteria, virus, etc.; certain lymphocytes are capable of producing antibodies. Thus, bone marrow is not only a hematopoietic tissue, but it is also an important immune tissue. Bone marrow aspiration is a routine diagnostic technique for clinical bone marrow extraction, and a bone marrow puncture needle is a necessary medical instrument during the bone marrow aspiration. In the prior art, when a conventional bone marrow puncture needle is used for extracting bone marrow, an injection needle is needed to perform anesthesia puncture at a puncture point, then the bone marrow puncture needle is used for puncturing and extracting the bone marrow at the same position, the anesthesia puncture and the marrow puncture are performed separately, and because small deviation exists in the needle inserting angles of the marrow puncture and the anesthesia puncture, periosteum multi-point anesthesia is needed during anesthesia, the puncture frequency is high, and the pain of a patient is increased.

In order to relieve the pain of bone marrow extraction, some novel extraction devices are provided, but some problems also exist, for example, the extraction device shown in the authorization notice number CN 205041448, an annular baffle is arranged to control the insertion depth of a needle so as to avoid the problem that a doctor exerts too much force, and the needle is inserted too deeply to cause more pain, but in the operation process, the needle is inserted into muscle, the baffle of the device can only adjust one height and is only suitable for extraction steps, the inner and outer baffles for quantification are fixed, different people such as adults and children and the like have different extracted bone marrow quantities, and the fixed baffles can not meet the quantitative requirement.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a bone marrow puncture and extraction device for a blood internal medicine, which solves the problems that functions realized by some structures in the prior art are insufficient in practicability and can not meet more requirements.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: hematology department bone marrow puncture draw-out device, including outer barrel and chassis, the bottom fixedly connected with cushion on chassis, the top on chassis is rotated and is connected with the carousel, the top difference fixedly connected with threaded rod and the scale slide bar of carousel, the surface from the top down of scale slide bar has first limiting plate and second limiting plate through sliding sleeve sliding connection in proper order, the equal fixedly connected with in the left and right sides of first limiting plate and second limiting plate is fixed the cover, the inside of fixed cover is rotated and is connected with adjusting bolt, and adjusting bolt's internal surface and the surface threaded connection of threaded rod, the equal fixedly connected with cutting in the left and right sides of outer barrel, the spacing groove with cutting looks adaptation is seted up to the inside of first limiting plate.

The utility model discloses a cylinder, including outer barrel, barrel in the inside fixedly connected with of outer barrel, sliding connection has first piston between the internal surface of outer barrel and the surface of interior barrel, the top fixedly connected with ejector sleeve of first piston, and the ejector sleeve cover is established in the outside of barrel, the top of ejector sleeve extends to the outside of outer barrel, and the first push pedal of top fixedly connected with of ejector sleeve, the inside sliding connection of interior barrel has the second piston, the top fixedly connected with cross push rod of second piston, and the top of cross push rod extends to the outside of interior barrel, the top fixedly connected with second push pedal of cross push rod.

Preferably, threaded rod and scale slide bar all are provided with two, and evenly distributed is at the top of carousel, chassis, carousel, first limiting plate and second limiting plate are all established in the outside of barrel outward.

Preferably, syringe needle fixed block in the center fixedly connected with of outer barrel bottom, and the top of interior syringe needle fixed block and the bottom intercommunication of interior barrel, the outside intercommunication that the bottom of outer barrel just is located interior syringe needle fixed block has the intercommunication piece, and the bottom intercommunication of intercommunication piece has outer syringe needle fixed block.

Preferably, the bottom intercommunication of interior syringe needle fixed block has interior syringe needle, the bottom of interior syringe needle runs through intercommunication piece and outer syringe needle fixed block in proper order and extends to the below of outer syringe needle fixed block, the bottom intercommunication of outer syringe needle fixed block has outer syringe needle, and the outside at interior syringe needle is established to outer syringe needle cover.

Preferably, the bottom end of the surface of the inner needle head is provided with a first needle hole, and the bottom end of the surface of the outer needle head is provided with a second needle hole.

Preferably, the top end of the inner cylinder body is clamped with a threaded sleeve, the inner thread of the threaded sleeve is connected with a threaded stop block, the threaded stop block is sleeved outside the cross push rod, and a cross groove matched with the cross push rod is formed in the threaded stop block.

Preferably, a connecting ring is clamped between the threaded rod and the top end of the scale slide rod, and the connecting ring is sleeved outside the outer cylinder body.

Preferably, the top on chassis just is located the equal fixedly connected with stopper of the left and right sides of carousel, the spring groove has been seted up at the top of stopper internal surface, the inside from the top down sliding connection in proper order in spring groove has spring and steel ball, the bottom of steel ball runs through the spring groove and extends to the top of carousel, and the top of carousel set up with the recess of steel ball looks adaptation.

(III) advantageous effects

The invention provides a bone marrow puncture and extraction device for hematology department. Compared with the prior art, the method has the following beneficial effects:

(1) the bone marrow puncture and extraction device for the hematology department is characterized in that a rotary disc is rotatably connected to the top of a base plate, a threaded rod and a scale slide rod are fixedly connected to the top of the rotary disc respectively, the surface of the scale slide rod is sequentially and slidably connected with a first limiting plate and a second limiting plate through a sliding sleeve from top to bottom, the base plate, the rotary disc, the first limiting plate and the second limiting plate are sleeved outside an outer barrel body, the left side and the right side of the first limiting plate and the right side of the second limiting plate are fixedly connected with fixed sleeves, adjusting bolts are rotatably connected inside the fixed sleeves, the inner surfaces of the adjusting bolts are in threaded connection with the outer surfaces of the threaded rods, inserting strips are fixedly connected to the left side and the right side of the outer barrel body, limiting grooves matched with the inserting strips are formed inside the first limiting plate, the heights of the first limiting plate and the second limiting plate can be freely adjusted by matching the threaded rods with, and then can make the outer cylinder locate at the muscular layer while injecting, locate in bone while withdrawing the bone marrow, needn't prick the needle twice, easy to use, and reducible patient's agony, can be according to different crowd's group at the same time, adjust different heights, the serviceability is strong.

(2) This blood internal medicine marrow puncture draw-out device, there is the thread bush through the top joint of barrel including, the inside threaded connection of thread bush has the screw thread dog, the outside at cross push rod is established to screw thread dog cover, and the inside of screw thread dog sets up the cross recess with cross push rod looks adaptation, utilize the cross push rod can drive the screw thread dog and rotate, and then the screw-thread fit between usable and the thread bush, make the screw thread dog go up and down, and then the displacement of steerable second piston, can avoid doctor's strength too big and extract too much marrow, and can adjust different capacity according to patient's difference, high durability and convenient use.

(3) The bone marrow puncture and extraction device for the hematology department is characterized in that an inner barrel is fixedly connected inside an outer barrel, a first piston is connected between the inner surface of the outer barrel and the outer surface of the inner barrel in a sliding manner, a push barrel is fixedly connected to the top of the first piston, a first push plate is fixedly connected to the top of the push barrel, a second piston is connected inside the inner barrel in a sliding manner, a cross push rod is fixedly connected to the top of the second piston, a second push plate is fixedly connected to the top of the cross push rod, an inner needle fixing block is fixedly connected to the center of the bottom of the outer barrel, the top of the inner needle fixing block is communicated with the bottom of the inner barrel, a communicating block is communicated with the bottom of the outer barrel and positioned outside the inner needle fixing block, an outer needle is communicated with the bottom of the communicating block, an inner needle is communicated with the bottom of the inner needle fixing block, and outer syringe needle cover is established in the outside of interior syringe needle, sets up syringe needle and outer syringe needle use in outer barrel and the cooperation of interior barrel, and the internal anaesthetic that is used for depositing of urceolus, and the internal marrow sample that is used for depositing of inner tube makes can not contain the anaesthetic in the marrow of drawing, can not influence the quality of marrow, and can promote first piston and second piston slip respectively through pushing away a section of thick bamboo and cross push rod and be used for injecting the anaesthetic and extracting the marrow, can not mutual interference, convenient to use.

(4) This hematology department bone marrow puncture draw-out device through including the bottom on syringe needle surface seted up first pinhole, the second pinhole has been seted up to the bottom on outer syringe needle surface, utilize the second pinhole that outer syringe needle surface set up, make outer syringe needle can be to injecting anesthetic all around, compare in the syringe needle on current inclined plane, the dispersion is faster, anesthesia speed is faster, and utilizes the first pinhole on syringe needle surface in, the speed of syringe needle extraction bone marrow in the multiplicable, convenient to use.

(5) This blood internal medicine marrow puncture draw-out device, through the top on the chassis and be located the equal fixedly connected with stopper in the left and right sides of carousel, the spring groove has been seted up at the top of stopper internal surface, the inside from the top down sliding connection in proper order in spring groove has spring and steel ball, the bottom of steel ball runs through the spring groove and extends to the top of carousel, and the top of carousel set up with the recess of steel ball looks adaptation, utilize the spring can be when the recess removes to the steel ball below, in popping into the recess with the steel ball is automatic, only need hear the sound alright confirm that the carousel has rotated 90 degrees, be convenient for fix a position cutting and spacing groove, high durability and convenient use.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the outer cylinder according to the present invention;

FIG. 3 is a schematic view of the inner and outer needles of the present invention;

FIG. 4 is a schematic view of the internal structure of the inner cylinder according to the present invention;

FIG. 5 is a partial sectional view of the inner barrel of the present invention;

FIG. 6 is a top view of the thread stop block construction of the present invention;

FIG. 7 is a cross-sectional view of the stop block structure of the present invention;

FIG. 8 is a top view of a first push plate construction of the present invention.

In the figure, 1-outer cylinder, 2-chassis, 3-inner cylinder, 4-first piston, 5-push cylinder, 6-first push plate, 7-second piston, 8-cross push rod, 9-second push plate, 10-inner needle head fixing block, 11-communicating block, 12-outer needle head fixing block, 13-inner needle head, 14-outer needle head, 15-thread stop block, 16-cross groove, 17-first needle hole, 18-second needle hole, 19-rotary table, 20-threaded rod, 21-scale slide rod, 22-sliding sleeve, 23-first limiting plate, 24-second limiting plate, 25-fixing sleeve, 26-adjusting bolt, 27-inserting strip, 28-limiting groove, 29-thread sleeve, 30-connecting ring, 31-a limiting block, 32-a spring groove, 33-a spring, 34-a steel ball and 35-a groove.

Detailed Description

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.

Referring to fig. 1 to 8, an embodiment of the present invention provides a technical solution: a bone marrow puncture and extraction device for hematology department comprises an outer barrel 1 and a chassis 2, an inner needle fixing block 10 is fixedly connected at the center of the bottom of the outer barrel 1, the top of the inner needle fixing block 10 is communicated with the bottom of an inner barrel 3, an inner needle 13 is communicated with the bottom of the inner needle fixing block 10, a first needle hole 17 is formed at the bottom of the surface of the inner needle 13, a second needle hole 18 is formed at the bottom of the surface of an outer needle 14, the second needle hole 18 formed in the surface of the outer needle 14 is utilized to enable the outer needle 14 to inject anesthetic to the periphery, compared with the existing inclined needle, the dispersion is faster, the anesthesia speed is faster, the first needle hole 17 on the surface of the inner needle 13 is utilized to increase the bone marrow extraction speed of the inner needle 13, the use is convenient, the bottom of the inner needle 13 sequentially penetrates through a communicating block 11 and the outer needle fixing block 12 and extends to the lower part of the outer needle fixing block 12, the bottom of the outer needle fixing, the outer needle 14 is sleeved outside the inner needle 13, the outer barrel 1 and the inner barrel 3 are arranged to be matched with the inner needle 13 and the outer needle 14 for use, anesthetic is stored in the outer barrel 1, a bone marrow sample is stored in the inner barrel 3, so that the extracted bone marrow does not contain anesthetic, the quality of the bone marrow is not affected, the first piston 4 and the second piston 7 can be respectively pushed to slide through the push barrel 5 and the cross push rod 8 for injecting anesthetic and extracting the bone marrow without mutual interference, the use is convenient, the bottom of the outer barrel 1 and the outer part of the inner needle fixing block 10 are communicated with the communicating block 11, the bottom of the communicating block 11 is communicated with the outer needle fixing block 12, the top of the chassis 2 and the left and right sides of the turntable 19 are fixedly connected with the limiting blocks 31, the top of the inner surface of the limiting block 31 is provided with the spring groove 32, and the spring 33 and the steel balls 34 are sequentially connected in a sliding manner from top to bottom inside of, the bottom of the steel ball 34 penetrates through the spring groove 32 and extends to the top of the rotary disc 19, the top of the rotary disc 19 is provided with a groove 35 matched with the steel ball 34, when the groove 35 is moved to the position below the steel ball 34 by utilizing the spring 33, the steel ball 34 is automatically bounced into the groove 35, the rotation of the rotary disc 19 by 90 degrees can be determined only by hearing sound, the positioning of the inserting strip 27 and the limiting groove 28 is convenient, the use is convenient, the bottom of the chassis 2 is fixedly connected with a cushion which is attached to the skin of a patient, so that the patient is more comfortable, the top of the chassis 2 is rotatably connected with the rotary disc 19, the top of the rotary disc 19 is respectively and fixedly connected with a threaded rod 20 and a scale slide rod 21, the surface society of the scale slide rod 21 is graduated and convenient for quantitative control, the threaded rod 20 and the scale slide rod 21 are respectively provided with two numbers and uniformly distributed on the top of the rotary disc 19, the surface of the scale slide bar 21 is sequentially connected with a first limit plate 23 and a second limit plate 24 in a sliding way from top to bottom through a sliding sleeve 22, the left side and the right side of the first limit plate 23 and the second limit plate 24 are fixedly connected with fixing sleeves 25, the inner part of the fixing sleeves 25 is rotatably connected with an adjusting bolt 26, the inner surface of the adjusting bolt 26 is in threaded connection with the outer surface of a threaded rod 20, the left side and the right side of the outer cylinder 1 are fixedly connected with inserting strips 27, the inner part of the first limit plate 23 is provided with limit grooves 28 matched with the inserting strips 27, the heights of the first limit plate 23 and the second limit plate 24 can be freely adjusted by utilizing the matching between the threaded rod 20 and the adjusting bolt 26, the first limit plate 23 and the second limit plate 24 can respectively block the outer cylinder 1 by utilizing the inserting strips 27, so that the head of the outer cylinder 1 can be positioned in a muscle layer when injecting bone marrow is extracted without twice, convenient to use, and can reduce patient's misery, can adjust different heights according to the crowd of difference simultaneously, the suitability is strong.

The inner cylinder body 3 is fixedly connected to the inner part of the outer cylinder body 1, the threaded sleeve 29 is clamped at the top end of the inner cylinder body 3, the threaded stop block 15 is connected to the inner thread of the threaded sleeve 29 in a threaded manner, the threaded stop block 15 is sleeved on the outer part of the cross push rod 8, the cross groove 16 matched with the cross push rod 8 is formed in the threaded stop block 15, the threaded stop block 15 can be driven to rotate by the cross push rod 8, the threaded stop block 15 can be lifted by utilizing thread fit with the threaded sleeve 29, the moving distance of the second piston 7 can be controlled, excessive bone marrow extraction caused by overlarge force of a doctor can be avoided, different capacities can be adjusted according to differences of patients, the use is convenient, the first piston 4 is connected between the inner surface of the outer cylinder body 1 and the outer surface of the inner cylinder body 3 in a sliding manner, the push cylinder 5 is fixedly connected to the top of the first piston 4, the top of a push cylinder 5 extends to the outside of the outer cylinder body 1, the first push plate 6 of the top fixedly connected with of the push cylinder 5, the second piston 7 is connected to the inside of the inner cylinder body 3 in a sliding mode, the cross push rod 8 is fixedly connected to the top of the second piston 7, the top of the cross push rod 8 extends to the outside of the inner cylinder body 3, and the second push plate 9 is fixedly connected to the top of the cross push rod 8.

When the anesthesia machine is used, the outer needle 14 is inserted into an anesthetic bottle to extract anesthetic, the adjusting bolt 26 is rotated according to the thickness of fat and muscle of a patient to drive the first push plate 6 and the second piston 7 to proper heights, then the outer needle 14 is inserted into the patient, when the chassis 2 is attached to the skin of the patient and the bottom of the insertion strip 27 is attached to the top of the first push plate 6, the bottom end of the outer needle 14 is positioned in the muscle layer and cannot be continuously lowered, the push cylinder 5 can be pushed at the moment, the anesthetic is injected into the patient for anesthesia by using the first piston 4, the threaded rod 20 and the scale slide rod 21 can be rotated 90 degrees after the anesthesia effect is achieved, the rotating disc 19 is driven to rotate 90 degrees together with the first limiting plate 23 and the second limiting plate 24, when the sound generated when the steel ball 34 is clamped into the groove 35 indicates that the steel ball is rotated 90 degrees, the limiting groove 28 is rotated to the position below the insertion strip 27, and the outer cylinder 1 can be continuously, the outer needle 14 is inserted into the bone, at this time, the second stopper plate 24 blocks the insertion strip 27 to prevent the outer barrel 1 from further descending, at this time, the cross push rod 8 can be pulled to lift the second piston 7, so that the bone marrow is drawn into the inner barrel 3 through the outer needle 14 and the inner needle 13, and then the outer needle 14 can be pulled out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Hematology internal medicine marrow puncture draw-out device, including outer barrel (1) and chassis (2), its characterized in that: the bottom of the chassis (2) is fixedly connected with a soft cushion, the top of the chassis (2) is rotatably connected with a turntable (19), the top of the turntable (19) is respectively fixedly connected with a threaded rod (20) and a scale slide rod (21), the surface of the scale slide bar (21) is sequentially connected with a first limit plate (23) and a second limit plate (24) in a sliding way through a sliding sleeve (22) from top to bottom, the left side and the right side of the first limit plate (23) and the second limit plate (24) are both fixedly connected with a fixed sleeve (25), the inner part of the fixed sleeve (25) is rotatably connected with an adjusting bolt (26), and the inner surface of the adjusting bolt (26) is in threaded connection with the outer surface of the threaded rod (20), the left side and the right side of the outer cylinder body (1) are both fixedly connected with inserting strips (27), a limiting groove (28) matched with the inserting strip (27) is formed in the first limiting plate (23);

barrel (3) in the inside fixedly connected with of outer barrel (1), sliding connection has first piston (4) between the internal surface of outer barrel (1) and the surface of interior barrel (3), the top fixedly connected with push cylinder (5) of first piston (4), and push cylinder (5) cover establish the outside at interior barrel (3), the top of push cylinder (5) extends to the outside of outer barrel (1), and the first push pedal (6) of top fixedly connected with of push cylinder (5), the inside sliding connection of interior barrel (3) has second piston (7), the top fixedly connected with cross push rod (8) of second piston (7), and the top of cross push rod (8) extends to the outside of interior barrel (3), the top fixedly connected with second push pedal (9) of cross push rod (8).

2. The hematology department bone marrow puncture extraction device of claim 1, characterized in that: threaded rod (20) and scale slide bar (21) all are provided with two, and evenly distributed is at the top of carousel (19), the outside at outer barrel (1) is all established to chassis (2), carousel (19), first limiting plate (23) and second limiting plate (24) cover.

3. The hematology department bone marrow puncture extraction device of claim 1, characterized in that: outer syringe needle fixed block (10) in the center fixedly connected with of barrel (1) bottom, and the top of interior syringe needle fixed block (10) and the bottom intercommunication of interior barrel (3), the outside intercommunication that the bottom of outer barrel (1) just is located interior syringe needle fixed block (10) has intercommunication piece (11), and the bottom intercommunication of intercommunication piece (11) has outer syringe needle fixed block (12).

4. A hematology department bone marrow puncture extraction device according to claim 3, characterized in that: the bottom intercommunication of interior syringe needle fixed block (10) has interior syringe needle (13), the bottom of interior syringe needle (13) runs through intercommunication piece (11) and outer syringe needle fixed block (12) in proper order and extends to the below of outer syringe needle fixed block (12), the bottom intercommunication of outer syringe needle fixed block (12) has outer syringe needle (14), and outside including syringe needle (13) are established to outer syringe needle (14) cover.

5. The hematology department bone marrow puncture extraction device of claim 4, wherein: a first needle hole (17) is formed in the bottom end of the surface of the inner needle head (13), and a second needle hole (18) is formed in the bottom end of the surface of the outer needle head (14).

6. The hematology department bone marrow puncture extraction device of claim 1, characterized in that: the top joint of interior barrel (3) has thread bush (29), the inside threaded connection of thread bush (29) has screw thread dog (15), the outside at cross push rod (8) is established in screw thread dog (15) cover, and screw thread dog (15) inside offer with cross push rod (8) looks adaptation cross groove (16).

7. The hematology department bone marrow puncture extraction device of claim 1, characterized in that: the threaded rod (20) and the top end of the scale slide rod (21) are clamped with a connecting ring (30), and the connecting ring (30) is sleeved outside the outer barrel body (1).

8. The hematology department bone marrow puncture extraction device of claim 1, characterized in that: the top of chassis (2) just is located the equal fixedly connected with stopper (31) of the left and right sides of carousel (19), spring groove (32) have been seted up at the top of stopper (31) internal surface, the inside from the top down sliding connection in proper order of spring groove (32) has spring (33) and steel ball (34), the bottom of steel ball (34) runs through spring groove (32) and extends to the top of carousel (19), and recess (35) with steel ball (34) looks adaptation are seted up at the top of carousel (19).