CN117679085B - Bone marrow puncturing device - Google Patents
Bone marrow puncturing device Download PDFInfo
- Publication number
- CN117679085B CN117679085B CN202410150517.2A CN202410150517A CN117679085B CN 117679085 B CN117679085 B CN 117679085B CN 202410150517 A CN202410150517 A CN 202410150517A CN 117679085 B CN117679085 B CN 117679085B
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- Prior art keywords
- needle
- tube
- bone marrow
- handle
- shell
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- 210000001185 bone marrow Anatomy 0.000 title claims abstract description 36
- 241000463219 Epitheca Species 0.000 claims abstract description 10
- 240000005002 Erythronium dens canis Species 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 238000005070 sampling Methods 0.000 abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000009583 bone marrow aspiration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Abstract
The invention relates to the technical field of bone marrow sampling equipment. In particular to a bone marrow puncturing device. The novel needle tube type needle tube assembling device comprises a handle, an upper shell is arranged on the upper portion of the handle in a detachable mode, a front portion and a rear portion of the upper shell are all opened, an upper rotating tube is connected to the upper shell in a rotating mode, a spring chuck is arranged at the front end of the upper rotating tube, the spring chuck is in a round table shape, a chuck nut is connected to the front end of the upper rotating tube in a threaded mode, the shape of the front portion of the inner side of the chuck nut is matched with the spring chuck, the spring chuck is used for clamping a needle tube, a needle core is connected to the needle tube in a sliding mode, a needle core fixing device is arranged on the upper rotating tube, and an upper rotating tube driving device is arranged in the handle. The convenient operation such as take a sample, adjustment under the condition of not tearing down the needle tubing, reduce the operating time of marrow puncture art, reduce patient's misery, simultaneously, the epitheca is detachable design, conveniently carries out independent disinfection to the epitheca.
Description
Technical Field
The invention relates to the technical field of bone marrow sampling equipment.
In particular to a bone marrow puncturing device.
Background
Bone marrow aspiration is a technique that uses bone marrow fluid. Commonly selected puncture sites include the anterior superior iliac spine, the posterior superior iliac spine, and the like. When puncturing, firstly, skin disinfection is carried out, then, a puncture needle is penetrated, after the puncture needle enters a bone marrow cavity, a needle core is pulled out, and a syringe is used for extracting bone marrow liquid for examination or bone marrow culture; finally, the needle core is inserted, and the puncture needle is pulled out. Currently, bone marrow aspiration often uses a power tool to drive the needle into rotation to penetrate the bone marrow cavity.
The prior art has the following disadvantages: after the puncture needle enters the bone marrow cavity, the puncture needle needs to be detached from the electric tool, then the needle core is pulled out for sampling, the operation time is long, the pain of a patient is increased, and especially when the bone marrow fluid cannot be pumped, the needle core needs to be reinserted, the puncture needle is installed on the electric tool for puncture and adjustment again, the puncture needle is repeatedly detached, and the operation is more complicated.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a marrow puncturing device which is convenient for sampling without detaching a needle tube.
The aim of the invention is achieved by the following technical measures: the utility model provides a marrow puncture device, includes the handle, handle upper portion is provided with the epitheca with detachable mode, the front and back of epitheca all openly sets up, the inside rotation of epitheca is connected with the change pipe that goes up, it is provided with the collet chuck to go up change tub front end, the shape of collet chuck is round platform shape, it has the collet nut to go up change tub front end threaded connection, the shape of collet nut inboard front portion suits with the collet chuck, the collet chuck is used for the centre gripping needle tubing, sliding connection has the needle core in the needle tubing, upward be provided with needle core fixing device on the change pipe, be provided with change pipe drive arrangement in the handle.
As an improvement: the rear end of the needle core is provided with a needle core cap, the needle core cap is connected with a needle tube rear sheath, and the front part of the needle tube rear sheath is detachably connected with the rear end of the needle tube.
As an improvement: the needle core fixing device comprises a needle core limiting cover in threaded connection with the upper rotating tube, and the bottom of the inner side of the needle core limiting cover can be propped against the rear part of the needle core cap.
As an improvement: the upper rotating pipe driving device comprises a motor which is vertically arranged, a driving bevel gear is arranged at the output end of the motor, a lower rotating shaft is rotationally connected to the handle, a driven bevel gear meshed with the driving bevel gear is arranged on the lower rotating shaft, a lower gear is arranged on the lower rotating shaft, an upper gear meshed with the lower gear is arranged on the upper rotating pipe, and a safety device used for preventing the upper gear from rotating is arranged on the upper shell.
As an improvement: square hole and bar hole have been seted up on epitheca upper portion, bar hole link up mutually with square hole rear portion, sliding connection has the connecting rod in the bar hole, the connecting rod outside is provided with the push button, the size of push button is greater than square hole, the connecting rod inboard is provided with the limiting plate, the size of limiting plate is less than square hole, safeties is including the safety device that can stretch into between the upper gear dogtooth, safety device sets up in the limiting plate is inboard.
As an improvement: the front part of the upper shell is provided with a front shell mounting pipe, the front shell mounting pipe is connected with a front shell in a threaded manner, and the front part of the front shell is provided with a needle passing hole through which the needle containing tube passes.
As an improvement: the middle section of the needle tube is provided with a clamping part, and the diameter of the clamping part is larger than that of the front section of the needle tube and the rear section of the needle tube.
As an improvement: the upper part of the handle is provided with a plurality of positioning holes, the positioning holes are step holes, the lower part of the upper shell is provided with a plurality of positioning columns which can be matched with the positioning holes, and the positioning columns are connected with positioning screws in a threaded manner after penetrating through the positioning holes.
As an improvement: the left side and the right side of the upper part of the handle are respectively provided with a side plate which is vertically arranged, the inner sides of the side plates are respectively provided with a positioning bulge, and the left side and the right side of the upper shell are respectively provided with a positioning groove which can be matched with the positioning bulge.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that: the convenient operation such as take a sample, adjustment under the condition of not tearing down the needle tubing, reduce the operating time of marrow puncture art, reduce patient's misery, simultaneously, the epitheca is detachable design, conveniently carries out independent disinfection to the epitheca.
The invention is further described below with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic diagram of a bone marrow puncturing device according to the present invention.
FIG. 2 is a schematic view showing the exploded state of the bone marrow puncturing device according to the present invention.
Fig. 3 is a schematic top view of the grip of the bone marrow puncturing device according to the present invention.
Fig. 4 is a schematic view showing the bottom view of the upper shell of the bone marrow puncturing device according to the present invention.
Fig. 5 is a schematic top view of the upper shell and a schematic structure of the safety device of the bone marrow puncturing device.
Fig. 6 is an enlarged schematic view of a safety device in a bone marrow puncturing device according to the present invention.
Fig. 7 is a schematic view showing the internal structure of a bone marrow puncturing device according to the present invention.
FIG. 8 is a schematic view showing the internal structure of the bone marrow puncturing device according to the present invention in an exploded state.
Fig. 9 is an enlarged schematic view of the portion a in fig. 7.
Fig. 10 is an enlarged schematic view of a portion B in fig. 7.
Fig. 11 is an enlarged schematic view of the section C-C in fig. 7.
Fig. 12 is an enlarged schematic view of the section D-D in fig. 7.
Fig. 13 is an enlarged schematic view of the section E-E in fig. 7.
In the figure: 1-a handle; 2-an upper shell; 3-front shell; 4-needle tube; 5-a clamping part; 6-a needle core; 7-a needle core cap; 8-a needle tube front sheath; 9-a needle tube rear sheath; 10-buttons; 11-push button; 12-connecting rod; 13-limiting plates; 14-a safety barrier; 15-positioning columns; 16-set screw; 17-side plates; 18-positioning protrusions; 19-positioning grooves; 20-a lower opening; 21-upper opening; 22-positioning holes; 23-lower gear; 24-lower rotating shaft; 25-upper gear; 26-up-turning the tube; 27-square holes; 28-bar-shaped holes; 29-front shell mounting tube; 30-passing through a pinhole; 31-a collet; 32-a collet nut; 33-a needle core limiting cover; 34-drive bevel gear; 35-a passive bevel gear; 36-motor.
Detailed Description
As shown in fig. 1 to 13, a bone marrow puncture device comprises a handle 1, wherein a button 10 is arranged on the handle 1, an upper shell 2 is arranged at the upper part of the handle 1 in a detachable manner, a front part and a rear part of the upper shell 2 are both in open arrangement, an upper rotating tube 26 is connected in the upper shell 2 in a rotating way, a spring chuck 31 is arranged at the front end of the upper rotating tube 26, the spring chuck 31 is in a round table shape, a chuck nut 32 is connected at the front end of the upper rotating tube 26 in a threaded way, the shape of the front part of the inner side of the chuck nut 32 is matched with the spring chuck 31, the spring chuck 31 is used for clamping a needle tube 4, a needle core 6 is connected in a sliding way in the needle tube 4, a needle core fixing device is arranged on the upper rotating tube 26, and an upper rotating tube driving device is arranged in the handle 1.
When the device is used, firstly, the upper shell 2 is arranged on the handle 1, the needle tube 4 is arranged on the collet 31, the collet nut 32 is screwed to fix the needle tube 4, and the needle core fixing device is fixed, wherein, the collet 31 and the collet nut 32 are used for fixing cylindrical objects in the prior art, and the description is omitted herein; then, the upper rotating tube driving device is started, and the upper rotating tube 26 and the needle tube 4 are rotated to perform bone marrow puncture. Specifically, the operator holds and pushes the handle 1, and then pushes the needle tube 4 to move forwards, and simultaneously, the upward rotating tube 26 and the needle tube 4 rotate, so that the method of rotating the needle tube 4 during manual puncture can be simulated, the operator can save more labor when pushing the handle 1, and the puncture efficiency is improved. After the puncture is finished, loosening the needle core fixing device, pulling out the needle core 6, connecting the needle tube 4 with an injector, and sampling; if the bone marrow is not extracted, reinserting the needle core 6, fixing the needle core fixing device, loosening the needle core fixing device after adjustment, extracting the needle core 6, and re-sampling; if bone marrow is extracted, the handle 1 is held by hand, and the needle tube 4 is extracted.
After use, first, the chuck nut 32 is loosened and the needle tube 4 is removed; then, the upper case 2 is removed, and the upper case 2 is sterilized.
The operation such as convenient sample, adjustment under the condition of not tearing down needle tubing 4 reduces the operating time of marrow puncture art, reduces patient's misery, simultaneously, upper shell 2 is detachable design, conveniently carries out independent disinfection to upper shell 2.
The front end of the needle tube 4 is sleeved with a needle tube front sheath 8, the rear end of the needle tube 6 is provided with a needle tube cap 7, the needle tube rear sheath 9 is connected to the needle tube cap 7, the front part of the needle tube rear sheath 9 is detachably connected with the rear end of the needle tube 4, and specifically, the front part of the needle tube rear sheath 9 is sleeved with the rear end of the needle tube 4 in a threaded connection or interference fit.
The needle tube front sheath 8 is used for protecting the front end of the needle tube 4, and the needle tube front sheath 8 is taken down before bone marrow puncture is carried out. The needle tube rear sheath 9 is used for protecting the rear end of the needle tube 4 and the needle core 6.
The needle core fixing device comprises a needle core limiting cover 33 in threaded connection with the upper rotating tube 26, and the bottom of the inner side of the needle core limiting cover 33 can be propped against the rear part of the needle core cap 7.
When in use, the bottom of the inner side of the needle core limiting cover 33 can be propped against the rear part of the needle core cap 7, so as to ensure the fixation of the needle core 6 in the bone marrow puncture process.
The upper rotating pipe driving device comprises a motor 36 which is vertically arranged, a driving bevel gear 34 is arranged at the output end of the motor 36, a lower rotating shaft 24 is rotationally connected to the grip 1, a driven bevel gear 35 meshed with the driving bevel gear 34 is arranged on the lower rotating shaft 24, a lower gear 23 is arranged on the lower rotating shaft 24, a lower opening 20 corresponding to the position of the lower gear 23 is arranged on the upper portion of the grip 1, an upper gear 25 meshed with the lower gear 23 is arranged on the upper rotating pipe 26, an upper opening 21 corresponding to the position of the upper gear 25 is arranged on the lower portion of the upper shell 2, and a safety device for preventing the upper gear 25 from rotating is arranged on the upper shell 2.
When the upper shell 2 is mounted, the upper gear 25 is aligned with the lower gear 23, and if the engagement is not in place, the upper rotating tube 26 is rotated to adjust. When in use, the motor 36 is started, the motor 36 drives the lower gear 23 and the upper gear 25 to rotate, and then drives the needle tube 4 to rotate, and the upper shell 2 has no electronic component, so that the disinfection is convenient. When the needle tube 4 is installed or sampling is performed, the safety device is fixed, the upper rotating tube 26 is prevented from rotating, and the operation is convenient.
Square hole 27 and bar hole 28 have been seted up on epitheca 2 upper portion, bar hole 28 link up with square hole 27 rear portion mutually, sliding connection has connecting rod 12 in bar hole 28, the connecting rod 12 outside is provided with push button 11, push button 11's size is greater than square hole 27, connecting rod 12 inboard is provided with limiting plate 13, limiting plate 13's size is less than square hole 27, the safety device is including the safety device 14 that can stretch into between the gear 25 dogtooth, safety device 14 sets up in limiting plate 13 inboard.
When the needle tube 4 is installed or sampling is carried out, the limiting plate 13 is placed into the upper shell 2 through the square hole 27, the push button 11 is pushed, the safety baffle 14 stretches into between the convex teeth of the upper gear 25 to prevent the upper rotating tube 26 from rotating, and if the safety baffle 14 is not matched with the convex teeth of the upper gear 25 in place, the upper rotating tube 26 or the handle 1 is rotated to carry out adjustment.
The front part of the upper shell 2 is provided with a front shell mounting tube 29, the front shell mounting tube 29 is connected with a front shell 3 in a threaded manner, and the front part of the front shell 3 is provided with a needle passing hole 30 through which the needle containing tube 4 passes.
When the front shell 3 is used for shielding moving parts such as the chuck nut 32 and the like, the damage to a patient is reduced, and the front shell 3 is disposable and more sanitary.
The middle section of the needle tube 4 is provided with a clamping part 5, and the diameter of the clamping part 5 is larger than that of the front section of the needle tube 4 and the rear section of the needle tube 4.
When in use, the diameter of the middle section of the needle tube 4 is larger, the clamping of the spring chuck 31 is facilitated, and the mechanical strength is higher.
The upper part of the handle 1 is provided with a plurality of positioning holes 22, the positioning holes 22 are step holes, the lower part of the upper shell 2 is provided with a plurality of positioning columns 15 which can be matched with the positioning holes 22, and the positioning columns 15 are connected with positioning screws 16 in a threaded manner after passing through the positioning holes 22.
When the upper shell 2 is installed, the positioning column 15 is aligned with the positioning hole 22, and then the positioning screw 16 is installed, so that the upper shell 2 is convenient to install and detach.
The left and right sides of the upper part of the handle 1 are respectively provided with a side plate 17 which is vertically arranged, the inner side of the side plate 17 is provided with a positioning bulge 18, and the left and right sides of the upper shell 2 are respectively provided with a positioning groove 19 which can be matched with the positioning bulge 18.
When the upper shell 2 is installed, the upper shell 2 is pressed between the two side plates 17, and the two side plates 17 elastically fix the upper shell 2, so that the upper shell 2 is convenient to install and detach.
A method of using the bone marrow puncturing device of example 1, comprising the steps of:
s1, mounting an upper shell 2 on a grip 1;
s2, mounting the needle tube 4 on the spring chuck 31 to fix the needle core fixing device;
s3, starting an up-rotation tube driving device to perform bone marrow puncture;
s4, loosening the needle core fixing device, pulling out the needle core 6, sampling, reinserting the needle core 6 if bone marrow is not pulled out, fixing the needle core fixing device, loosening the needle core fixing device after adjustment, pulling out the needle core 6, and re-sampling.
The operation such as convenient sample, adjustment under the condition of not tearing down needle tubing 4 reduces the operating time of marrow puncture art, reduces patient's misery, simultaneously, upper shell 2 is detachable design, conveniently carries out independent disinfection to upper shell 2.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (6)
1. A bone marrow puncturing device, comprising a handle (1), characterized in that: the upper part of the handle (1) is provided with an upper shell (2) in a detachable mode, the front part and the rear part of the upper shell (2) are both opened, an upper rotating tube (26) is connected in the upper shell (2) in a rotating mode, the front end of the upper rotating tube (26) is provided with a collet chuck (31), the shape of the collet chuck (31) is in a truncated cone shape, the front end of the upper rotating tube (26) is in threaded connection with a collet nut (32), the shape of the front part of the inner side of the collet nut (32) is matched with the collet chuck (31), the collet chuck (31) is used for clamping a needle tube (4), a needle core (6) is connected in a sliding mode in the needle tube (4), a needle core fixing device is arranged on the upper rotating tube (26), and an upper rotating tube driving device is arranged in the handle (1);
the rear end of the needle core (6) is provided with a needle core cap (7), the needle core cap (7) is connected with a needle tube rear sheath (9), and the front part of the needle tube rear sheath (9) is detachably connected with the rear end of the needle tube (4);
the needle core fixing device comprises a needle core limiting cover (33) in threaded connection with the upper rotating pipe (26), and the bottom of the inner side of the needle core limiting cover (33) can be propped against the rear part of the needle core cap (7);
the upper rotating tube driving device comprises a motor (36) which is vertically arranged, a driving bevel gear (34) is arranged at the output end of the motor (36), a lower rotating shaft (24) is rotationally connected to the grip (1), a driven bevel gear (35) which is meshed with the driving bevel gear (34) is arranged on the lower rotating shaft (24), a lower gear (23) is arranged on the lower rotating shaft (24), an upper gear (25) which can be meshed with the lower gear (23) is arranged on the upper rotating tube (26), and a safety device which is used for preventing the upper gear (25) from rotating is arranged on the upper shell (2).
2. The bone marrow puncturing device according to claim 1, wherein: square hole (27) and bar hole (28) have been seted up on epitheca (2) upper portion, bar hole (28) link up with square hole (27) rear portion mutually, sliding connection has connecting rod (12) in bar hole (28), the connecting rod (12) outside is provided with pushes away button (11), the size of pushing away button (11) is greater than square hole (27), connecting rod (12) inboard is provided with limiting plate (13), the size of limiting plate (13) is less than square hole (27), safeties is including safety barrier (14) that can stretch into between the dogtooth of upper gear (25), safety barrier (14) set up in limiting plate (13) inboard.
3. The bone marrow puncturing device according to claim 1, wherein: the front part of the upper shell (2) is provided with a front shell installation tube (29), the front shell installation tube (29) is connected with a front shell (3) in a threaded manner, and the front part of the front shell (3) is provided with a needle passing hole (30) through which the needle containing tube (4) passes.
4. The bone marrow puncturing device according to claim 1, wherein: the middle section of the needle tube (4) is provided with a clamping part (5), and the diameter of the clamping part (5) is larger than that of the front section of the needle tube (4) and the rear section of the needle tube (4).
5. The bone marrow puncturing device according to claim 1, wherein: a plurality of locating holes (22) are formed in the upper portion of the handle (1), the locating holes (22) are step holes, a plurality of locating columns (15) which can be matched with the locating holes (22) are arranged on the lower portion of the upper shell (2), and the locating columns (15) penetrate through the locating holes (22) and are connected with locating screws (16) in a threaded mode.
6. The bone marrow puncturing device according to claim 5, wherein: the left side and the right side of the upper part of the handle (1) are respectively provided with a side plate (17) which is vertically arranged, the inner side of the side plate (17) is provided with a positioning bulge (18), and the left side and the right side of the upper shell (2) are respectively provided with a positioning groove (19) which can be matched with the positioning bulge (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410150517.2A CN117679085B (en) | 2024-02-02 | 2024-02-02 | Bone marrow puncturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410150517.2A CN117679085B (en) | 2024-02-02 | 2024-02-02 | Bone marrow puncturing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117679085A CN117679085A (en) | 2024-03-12 |
| CN117679085B true CN117679085B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410150517.2A Active CN117679085B (en) | 2024-02-02 | 2024-02-02 | Bone marrow puncturing device |
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| Country | Link |
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| CN (1) | CN117679085B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007020630A (en) * | 2005-07-12 | 2007-02-01 | Mizuho Co Ltd | Puncture needle for sampling bone marrow and cancellous bone agitation needle used for the same |
| CN114305523A (en) * | 2021-12-24 | 2022-04-12 | 上海市胸科医院 | Semi-automatic biopsy needle and puncture system for endoscope |
| CN114668428A (en) * | 2022-03-31 | 2022-06-28 | 四川大学华西医院 | Bone marrow puncture device |
| CN217244525U (en) * | 2022-04-22 | 2022-08-23 | 苏州市美新迪斯医疗科技有限公司 | Bone marrow biopsy device |
| CN114983491A (en) * | 2022-06-10 | 2022-09-02 | 苏州市美新迪斯医疗科技有限公司 | Biopsy needle, biopsy needle set, and bone marrow biopsy device |
| CN217611167U (en) * | 2022-03-25 | 2022-10-21 | 中国人民解放军火箭军特色医学中心 | Electric bone marrow aspiration biopsy needle |
-
2024
- 2024-02-02 CN CN202410150517.2A patent/CN117679085B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007020630A (en) * | 2005-07-12 | 2007-02-01 | Mizuho Co Ltd | Puncture needle for sampling bone marrow and cancellous bone agitation needle used for the same |
| CN114305523A (en) * | 2021-12-24 | 2022-04-12 | 上海市胸科医院 | Semi-automatic biopsy needle and puncture system for endoscope |
| CN217611167U (en) * | 2022-03-25 | 2022-10-21 | 中国人民解放军火箭军特色医学中心 | Electric bone marrow aspiration biopsy needle |
| CN114668428A (en) * | 2022-03-31 | 2022-06-28 | 四川大学华西医院 | Bone marrow puncture device |
| CN217244525U (en) * | 2022-04-22 | 2022-08-23 | 苏州市美新迪斯医疗科技有限公司 | Bone marrow biopsy device |
| CN114983491A (en) * | 2022-06-10 | 2022-09-02 | 苏州市美新迪斯医疗科技有限公司 | Biopsy needle, biopsy needle set, and bone marrow biopsy device |
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| Publication number | Publication date |
|---|---|
| CN117679085A (en) | 2024-03-12 |
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