CN112168303A - Bone marrow puncture needle for hematology department - Google Patents
Bone marrow puncture needle for hematology department Download PDFInfo
- Publication number
- CN112168303A CN112168303A CN202011117944.9A CN202011117944A CN112168303A CN 112168303 A CN112168303 A CN 112168303A CN 202011117944 A CN202011117944 A CN 202011117944A CN 112168303 A CN112168303 A CN 112168303A
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- China
- Prior art keywords
- fixedly connected
- shell
- puncture needle
- bone marrow
- screw rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3472—Trocars; Puncturing needles for bones, e.g. intraosseus injections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
- A61B2010/0258—Marrow samples
Abstract
The invention discloses a hematology bone marrow puncture needle, which comprises a shell and a puncture needle, wherein a motor is fixedly connected to the upper surface of the shell, a screw rod is fixedly connected to the bottom of an output shaft on the motor, the surface of the screw rod penetrates through the shell and is rotatably connected with the shell, a threaded sleeve is screwed on the surface of the screw rod, a transmission ring is fixedly connected to the side surface of the threaded sleeve, a limiting rod is fixedly connected to the top of the inner wall of the shell, the surface of the limiting rod penetrates through the transmission ring and is slidably connected with the transmission ring, a sliding plate is fixedly connected to the right side of the transmission ring, a through groove for the sliding plate to slide up and down is formed in the right side of the shell, and a. The invention solves the problems that in the actual use process, the operation of puncturing the puncture needle into the human body is complex, the physical strength is consumed, and accidents are easy to happen under the condition that the working experience of doctors is insufficient, so that the inconvenience is brought to the use.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a bone marrow puncture needle for hematology department.
Background
Bone marrow puncture is a common diagnostic technique for collecting marrow fluid, and the clinical bone marrow puncture is also commonly used for blood cell morphology examination, hematopoietic stem cell collection, culture, cytogenetic analysis, pathogenic biology examination and the like, and a collecting tool for collecting the marrow fluid usually takes a bone puncture needle as a main part, the orientation of the commonly used bone puncture needle is inaccurate during puncture, and the needle head of the bone puncture needle can slide into one side of an ilium and can not enter a marrow cavity or penetrate the marrow cavity and then pass out of the marrow cavity; the utility model discloses a bone marrow volume control inaccuracy of drawing simultaneously, the puncture degree of depth also can't accurate the control, has can not disinfect, the location is not accurate and take inconvenient shortcoming, proposes a pjncture needle for this people, for a hematology department's bone marrow pjncture needle disclosed in chinese patent CN210112744U relates to medical equipment technical field, specifically is a hematology department's bone marrow pjncture needle, including the equipment storehouse, one side fixedly connected with fixed bolster in equipment storehouse, one side fixedly connected with fixed plate in equipment storehouse is kept away from to the fixed bolster, the one end swing joint of fixed plate has the disinfection bottle, the inside of fixed plate is pegged graft and is had first disinfection pipe, the disinfection bottle is through first disinfection pipe fixedly connected with one-way pressure valve. The hematology department marrow puncture needle can be combined with the arrangement of the first disinfection tube and the second disinfection tube when the puncture needle is used through the arrangement of the disinfection bottle, so that a worker can be combined with the one-way pressure valve to disinfect the equipment before and after use, the problem that the equipment is difficult to disinfect after use is solved, the working strength of the worker is greatly reduced, the occurrence of cross infection can be prevented, and the occurrence of various infections is greatly reduced;
however, in the actual use process, the operation of puncturing the puncture needle into the human body is complex, the physical strength is consumed, and accidents are easy to happen under the condition that the working experience of doctors is insufficient, so that inconvenience is brought to the use.
Disclosure of Invention
The invention aims to provide a bone marrow puncture needle for hematology, which improves the traditional device and solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a hematology department marrow pjncture needle, includes casing and pjncture needle, the last fixed surface of casing is connected with the motor, the bottom fixedly connected with screw rod of output shaft on the motor, the surface of screw rod runs through the casing and rotates with the casing and be connected, the surperficial spiro union of screw rod has the thread bush.
The side of the thread bushing is fixedly connected with a transmission ring, the top of the inner wall of the shell is fixedly connected with a limiting rod, the surface of the limiting rod penetrates through the transmission ring and is in sliding connection with the transmission ring, the right side of the transmission ring is fixedly connected with a sliding plate, the right side of the shell is provided with a through groove for the sliding plate to slide up and down, the right side of the sliding plate is fixedly connected with a bevel block, the bottom of the screw rod is fixedly connected with a turntable, the lower surface of the turntable is fixedly connected with an arc-shaped rack, the two sides of the shell are provided with through holes and are in limited rotation through the through holes, the surface of the transmission rod is fixedly connected with a gear, the gear is meshed with teeth on the arc-shaped rack, the surface of the transmission rod close to the left end is fixedly connected with a first ring, the inner wall of the shell is fixedly connected with a, the left end of transfer line has seted up the rectangular hole, the inner wall sliding connection in rectangular hole has the rectangle pole, the left end of rectangle pole and the right-hand member fixed connection of pjncture needle, the right-hand member fixed connection of rectangle pole has the pressure disk, the inclined plane sliding connection on the surface of pressure disk and the sloping block, the last surface cover that is close to the right-hand member of rectangle pole has the pressure spring.
Preferably, a shock pad is fixedly connected to the lower surface of the housing.
Preferably, the lower surface of the shell is fixedly connected with a sucker, and the sucker penetrates through the shock pad and is movably connected with the shock pad.
Preferably, the number of the sucking discs is not less than four, and the sucking discs are uniformly distributed on the shock absorption pad.
Preferably, the surface of the motor is sleeved with a reinforcing frame, and the bottom of the shock pad is fixedly connected with the upper surface of the shell.
Preferably, the number of the limiting rods is two, and the two limiting rods are symmetrically arranged by using the vertical central line of the screw rod.
Preferably, opposite sides of the two limiting rods are fixedly connected with circular ring sleeves, and rubber pads are fixed on the inner walls of the circular ring sleeves.
Compared with the prior art, the invention has the following beneficial effects:
the motor is connected with a power supply and the switch is turned on, the output shaft on the motor drives the screw rod to rotate, and the limiting rod penetrates through the transmission ring to limit the motion track of the transmission ring, so that the transmission ring can only slide up and down in the shell, and the threaded sleeve on the transmission ring and the screw rod rotate relatively;
the thread sleeve can drive the transmission ring to move up and down on the limiting rod by changing the rotation direction of the screw rod, the bevel block can move up and down along with the thread sleeve through the transmission of the sliding plate, when the bevel block moves down, the bevel on the bevel block can slide relative to the surface of the pressure plate, the pressure plate drives the rectangular rod to move left under the guidance of the bevel, the puncture needle synchronously moves left along with the left movement of the rectangular rod by placing the puncture part of the patient at the left end of the puncture needle, and then the puncture needle enters the puncture part of the patient; similarly, when the inclined plane block moves upwards, the pressure plate drives the rectangular rod to move rightwards under the action of the elastic force of the pressure spring, and the puncture needle is separated from the puncture part of the patient;
the synchronous rotation of the turntable and the arc-shaped rack on the turntable is driven by the rotation of the screw rod, the teeth on the arc-shaped rack are contacted and meshed with the teeth on the gear along with the rotation of the arc-shaped rack, the synchronous rotation of the gear can be driven by the rotation of the arc-shaped rack after meshing, the transmission rod drives the ring to synchronously rotate after overcoming the elasticity of the torsion spring during the meshing of the gear and the arc-shaped rack, the teeth on the transmission rod are separated from the contact with the gear along with the continuous rotation of the arc-shaped rack, the driving of the gear is released, and the ring drives the transmission rod to rapidly reset and rotate under the action of the elasticity of the torsion spring;
after the turntable drives the arc-shaped rack to continuously rotate, the transmission rod can continuously rotate in a reciprocating manner, and the puncture needle can move leftwards and simultaneously rotate in a reciprocating manner by matching with the left movement of the rectangular rod, so that the puncture needle can be easier to puncture into the body of a patient, the workload of doctors is reduced, and accidents caused by insufficient working experience of the doctors are avoided;
thirdly, the invention solves the problems that in the actual use process, the operation of puncturing the puncture needle into the human body is complex, the physical strength is consumed, and accidents are easy to happen under the condition that the working experience of doctors is insufficient, so that the inconvenience is brought to the use.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a front cross-sectional view of the shell of the present invention;
FIG. 3 is a bottom view of the turntable of the present invention;
fig. 4 is a left side view of the transfer bar of the present invention.
In the figure: 1-shell, 2-puncture needle, 3-motor, 4-screw, 5-thread bushing, 6-transmission ring, 7-limiting rod, 8-sliding plate, 9-through groove, 10-inclined block, 11-rotary table, 12-arc rack, 13-transmission rod, 14-gear, 15-ring I, 16-ring II, 17-torsion spring, 18-rectangular hole, 20-pressure plate, 21-pressure spring, 22-shock pad, 23-suction cup, 24-reinforcing frame and 25-ring bushing.
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 4, the present invention provides a technical solution: a bone marrow puncture needle for hematology department comprises a shell 1 and a puncture needle 2, wherein a shock pad 22 is fixedly connected to the lower surface of the shell 1, and the shock pad 22 on the shell 1 can play a shock absorption role, so that the puncture needle 2 is not easy to shake during puncture to influence the puncture;
the lower surface of the shell 1 is fixedly connected with a sucker 23, the sucker 23 penetrates through the shock pad 22 and is movably connected with the shock pad 22, the shell 1 can be further fixed through the arrangement of the sucker 23, and a better shock absorption effect can be achieved by matching with the shock pad 22;
the number of the suckers 23 is not less than four, the suckers are uniformly distributed on the shock pad 22, and the suckers 23 are not less than four and uniformly distributed on the shock pad 22, so that the stress of the shell 1 is more balanced;
the motor 3 is fixedly connected to the upper surface of the shell 1, the reinforcing frame 24 is sleeved on the surface of the motor 3, the bottom of the shock pad 22 is fixedly connected with the upper surface of the shell 1, and the motor 3 can be reinforced in installation and use through the arrangement of the reinforcing frame 24 on the motor 3, so that the motor 3 and the shell 1 are stronger in integration;
the bottom of an output shaft on the motor 3 is fixedly connected with a screw rod 4, the motor 3 is connected with a power supply and turns on a switch, and the output shaft on the motor drives the screw rod 4 to rotate; the surface of the screw rod 4 penetrates through the shell 1 and is rotationally connected with the shell 1, and the surface of the screw rod 4 is in threaded connection with a threaded sleeve 5;
the side surface of the threaded sleeve 5 is fixedly connected with a transmission ring 6, the top of the inner wall of the shell 1 is fixedly connected with two limiting rods 7, the number of the limiting rods 7 is two, the two limiting rods 7 are symmetrically arranged along the vertical central line of the screw rod 4, and the left and right stress of the transmission ring 6 is more balanced through the arrangement of the two limiting rods 7 on the transmission ring 6, so that the transmission ring 6 can be lifted more stably and smoothly;
the limiting rod 7 penetrates through the transmission ring 6, so that the motion track of the transmission ring 6 is limited, the transmission ring 6 can only slide up and down in the shell 1, and the threaded sleeve 5 on the transmission ring 6 and the screw rod 4 rotate relatively;
the surface of the limiting rod 7 penetrates through the transmission ring 6 and is in sliding connection with the transmission ring 6, the right side of the transmission ring 6 is fixedly connected with a sliding plate 8, the right side of the shell 1 is provided with a through groove 9 for the sliding plate 8 to slide up and down, the right side of the sliding plate 8 is fixedly connected with a bevel block 10, the bottom of the screw rod 4 is fixedly connected with a turntable 11, opposite sides of the two limiting rods 7 are fixedly connected with ring sleeves 25, rubber pads are fixed on the inner walls of the ring sleeves 25, and vibration generated when the arc-shaped rack 12 is in contact collision with the gear 14 can be filtered and absorbed through the arrangement of the ring sleeves 25 and the rubber pads on the inner walls of the ring sleeves 25, so that the overall; the lower surface of the rotary table 11 is fixedly connected with an arc-shaped rack 12, two sides of the shell 1 are provided with through holes and are limited to rotate by the through holes, a transmission rod 13 is arranged on the through holes, a gear 14 is fixedly connected to the surface of the transmission rod 13, the gear 14 is meshed with teeth on the arc-shaped rack 12, a first ring 15 is fixedly connected to the surface of the transmission rod 13 close to the left end, a second ring 16 is fixedly connected to the inner wall of the shell 1, a torsion spring 17 is sleeved on the surface of the transmission rod 13, two ends of the torsion spring 17 are fixedly connected with the opposite sides of the first ring 15 and the second ring 16, the rotary table 11 and the arc-shaped rack 12 on the rotary table 11 are driven to synchronously rotate by the rotation of the screw rod 4, the teeth on the arc-shaped rack 12 are contacted and meshed with the teeth on the gear 14 along with the rotation of the arc-shaped rack 12, the synchronous rotation of the gear 14 can be driven by the rotation of the, with the continuous rotation of the arc-shaped rack 12, the teeth on the arc-shaped rack are separated from the contact with the gear 14, the driving of the gear 14 is released, and the first ring 15 can drive the transmission rod 13 to rapidly reset and rotate under the action of the elastic force of the torsion spring 17;
after the turntable 11 drives the arc-shaped rack 12 to continuously rotate, the transmission rod 13 can continuously rotate in a reciprocating manner, and the puncture needle 2 can move leftwards and simultaneously rotate in a reciprocating manner by matching with the left movement of the rectangular rod 19, so that the puncture needle 2 can be easier to puncture into the body of a patient, the workload of doctors is reduced, and accidents caused by insufficient working experience of the doctors are avoided;
the left end of the transmission rod 13 is provided with a rectangular hole 18, the inner wall of the rectangular hole 18 is connected with a rectangular rod 19 in a sliding manner, the left end of the rectangular rod 19 is fixedly connected with the right end of the puncture needle 2, the right end of the rectangular rod 19 is fixedly connected with a pressure plate 20, the threaded sleeve 5 can drive the transmission ring 6 to move up and down on the limiting rod 7 by changing the rotating direction of the screw rod 4, the inclined block 10 is driven by the sliding plate 8 to move up and down, when the inclined block 10 moves down, the inclined plane on the inclined block 10 can slide relative to the surface of the pressure plate 20, and under the guidance of the inclined plane, the pressure plate 20 drives the rectangular rod 19 to move left, and the puncture needle 2 moves left synchronously by placing the puncture part of the patient at the left end of the puncture needle 2 along with the left movement of the rectangular rod 19, and then the puncture enters the puncture part; similarly, when the inclined plane block 10 moves upwards, the pressure plate 20 can drive the rectangular rod 19 to move rightwards under the action of the elastic force of the pressure spring 21, and the puncture needle 2 is separated from the puncture part of the patient;
the surface of the pressure plate 20 is connected with the inclined surface of the inclined surface block 10 in a sliding way, and the surface of the rectangular rod 19 close to the right end is sleeved with a pressure spring 21.
The working principle is as follows: when the hematology bone marrow puncture needle is used, the power supply is switched on through the motor 3, the switch is turned on, the output shaft on the motor drives the screw rod 4 to rotate, and the limiting rod 7 penetrates through the transmission ring 6 to limit the motion track of the transmission ring 6, so that the transmission ring 6 can only slide up and down in the shell 1, and the threaded sleeve 5 on the transmission ring 6 and the screw rod 4 rotate relatively; the threaded sleeve 5 can drive the transmission ring 6 to move up and down on the limiting rod 7 by changing the rotation direction of the screw rod 4, the inclined plane block 10 is driven by the sliding plate 8 to move up and down, when the inclined plane block 10 moves down, the inclined plane on the inclined plane block 10 can slide relative to the surface of the pressure plate 20, and the pressure plate 20 drives the rectangular rod 19 to move left under the guidance of the inclined plane, so that the puncture needle 2 synchronously moves left along with the left movement of the rectangular rod 19 by placing the puncture part of the patient at the left end of the puncture needle 2, and then the puncture needle enters the puncture part of the patient; similarly, when the inclined plane block 10 moves upwards, the pressure plate 20 can drive the rectangular rod 19 to move rightwards under the action of the elastic force of the pressure spring 21, and the puncture needle 2 is separated from the puncture part of the patient; the rotation of the screw rod 4 drives the synchronous rotation of the rotary table 11 and the arc-shaped rack 12 on the rotary table 11, along with the rotation of the arc-shaped rack 12, teeth on the arc-shaped rack 12 are contacted and meshed with teeth on the gear 14, after meshing, the synchronous rotation of the gear 14 can be driven through the rotation of the arc-shaped rack 12, during the meshing of the gear 14 and the arc-shaped rack 12, the transmission rod 13 can drive the ring one 15 to synchronously rotate after overcoming the elastic force of the torsion spring 17, along with the continuous rotation of the arc-shaped rack 12, the teeth on the transmission rod can be separated from the contact with the gear 14, the driving of the gear 14 is released, and under the elastic force of the torsion spring 17, the ring one 15 can drive the transmission rod 13 to rapidly reset and rotate; after the turntable 11 drives the arc-shaped rack 12 to continuously rotate, the transmission rod 13 can continuously rotate in a reciprocating manner, and the puncture needle 2 can move leftwards and simultaneously rotate in a reciprocating manner by matching with the left movement of the rectangular rod 19, so that the puncture needle 2 can be easier to puncture into the body of a patient, the workload of doctors is reduced, and accidents caused by insufficient working experience of the doctors are avoided;
through the cooperation use between the above-mentioned structure, solved in the in-service use process, because the pjncture needle pierces human operation comparatively complicacy, and consumes physical power, under the condition that doctor's experience is not enough, very easily meet accident, the problem of inconvenience is brought for the use.
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 (7)
1. A hematology department bone marrow puncture needle is characterized in that: the puncture needle comprises a shell (1) and a puncture needle (2), wherein the upper surface of the shell (1) is fixedly connected with a motor (3), the bottom of an output shaft on the motor (3) is fixedly connected with a screw rod (4), the surface of the screw rod (4) penetrates through the shell (1) and is rotatably connected with the shell (1), and the surface of the screw rod (4) is screwed with a threaded sleeve (5);
the side of the thread bushing (5) is fixedly connected with a transmission ring (6), the top of the inner wall of the shell (1) is fixedly connected with a limiting rod (7), the surface of the limiting rod (7) penetrates through the transmission ring (6) and is in sliding connection with the transmission ring (6), the right side of the transmission ring (6) is fixedly connected with a sliding plate (8), the right side of the shell (1) is provided with a through groove (9) for the sliding plate (8) to slide up and down, the right side of the sliding plate (8) is fixedly connected with a bevel block (10), the bottom of the screw rod (4) is fixedly connected with a turntable (11), the lower surface of the turntable (11) is fixedly connected with an arc-shaped rack (12), the two sides of the shell (1) are provided with through holes and are in limited rotation through the through holes to form a transmission rod (13), the surface of the transmission rod (13) is fixedly connected with a gear (14), the utility model discloses a puncture needle, including transfer line (13), the inner wall fixed connection of casing (1) has ring two (16), the surface cover of transfer line (13) has torsional spring (17), the both ends of torsional spring (17) and the opposite side fixed connection who encircles one (15) and ring two (16), rectangular hole (18) have been seted up to the left end of transfer line (13), the inner wall sliding connection of rectangular hole (18) has rectangular pole (19), the left end of rectangular pole (19) and the right-hand member fixed connection of pjncture needle (2), the right-hand member fixedly connected with pressure disk (20) of rectangular pole (19), the inclined plane sliding connection on the surface of pressure disk (20) and inclined plane piece (10), the surface cover that is close to the right-hand member on rectangular pole (19) has pressure spring (21).
2. The hematological bone marrow puncture needle according to claim 1, wherein: the lower surface of the shell (1) is fixedly connected with a shock pad (22).
3. The hematological bone marrow puncture needle according to claim 1, wherein: the lower surface fixed connection of casing (1) has sucking disc (23), sucking disc (23) run through shock pad (22) and with shock pad (22) swing joint.
4. The hematological bone marrow puncture needle according to claim 3, wherein: the number of the suckers (23) is not less than four, and the suckers are uniformly distributed on the shock pad (22).
5. The hematological bone marrow puncture needle according to claim 1, wherein: the surface of the motor (3) is sleeved with a reinforcing frame (24), and the bottom of the shock pad (22) is fixedly connected with the upper surface of the shell (1).
6. The hematological bone marrow puncture needle according to claim 1, wherein: the number of the limiting rods (7) is two, and the two limiting rods (7) are symmetrically arranged by using the vertical central line of the screw rod (4).
7. The hematological bone marrow puncture needle according to claim 1, wherein: opposite sides of the two limiting rods (7) are fixedly connected with circular ring sleeves (25), and rubber pads are fixed on the inner walls of the circular ring sleeves (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117944.9A CN112168303A (en) | 2020-10-19 | 2020-10-19 | Bone marrow puncture needle for hematology department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117944.9A CN112168303A (en) | 2020-10-19 | 2020-10-19 | Bone marrow puncture needle for hematology department |
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| CN112168303A true CN112168303A (en) | 2021-01-05 |
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| CN202011117944.9A Withdrawn CN112168303A (en) | 2020-10-19 | 2020-10-19 | Bone marrow puncture needle for hematology department |
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| CN111040929A (en) * | 2019-12-31 | 2020-04-21 | 青岛市海慈医疗集团 | Gene capturing kit for capturing related genes of hematopathy |
| CN211355790U (en) * | 2020-01-13 | 2020-08-28 | 重庆市南川区中医医院(重庆市南川区西城街道社区卫生服务中心) | Puncture needle for orthopedic surgery |
| CN111481305A (en) * | 2020-04-21 | 2020-08-04 | 朱凤堂 | Shank mounting fixture for orthopedic surgery |
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Application publication date: 20210105 |