CN109009249B - Rotary bone marrow puncture needle for hematology department - Google Patents
Rotary bone marrow puncture needle for hematology department Download PDFInfo
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- CN109009249B CN109009249B CN201811020483.6A CN201811020483A CN109009249B CN 109009249 B CN109009249 B CN 109009249B CN 201811020483 A CN201811020483 A CN 201811020483A CN 109009249 B CN109009249 B CN 109009249B
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- 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
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- 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 relates to a rotary type marrow puncture needle for hematology, which comprises a cylindrical shell, a puncture needle core assembly, an anesthetic needle and a marrow extracting needle, wherein a central shaft is arranged in the cylindrical shell, a rotary sleeve is sleeved outside the central shaft, a linkage disc is fixedly sleeved on the rotary sleeve, 3 cylindrical channels are uniformly distributed on a positioning disc and a cover body around the center, the positions of the 3 cylindrical channels correspond to the positions of 3 circular through holes on the linkage disc, the puncture needle core assembly comprises a needle core body and a puncture control handle, the anesthetic needle comprises an anesthetic needle cylinder, a piston and a push-pull rod, the piston and the push-pull rod are arranged in the anesthetic needle cylinder, the piston and the push-pull rod are arranged in the marrow extracting needle cylinder, and the anesthetic needle cylinder and the marrow extracting needle cylinder are respectively arranged in the other two channels. The bone marrow puncture needle of the invention not only can solve the problem of reducing puncture times, but also can avoid the problems of blocking the puncture needle and polluting samples in the puncture process.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a rotary type bone marrow puncture needle for hematology department.
Background
The hematology department is a branch of medicine that mainly treats problems of the hematopoietic system. The hematology department may also provide professional services for many hematological problems other than hematological diseases and conduct multiple technical tests. Common erythrocytic diseases such as anemia, iron deficiency anemia, aplastic anemia, hemoglobinopathy, and porphyria. Bone marrow puncture is a common diagnostic technique for collecting bone marrow fluid, and the bone marrow puncture fluid is usually used for blood cell morphology examination in clinic, and can also be used for hematopoietic stem cell culture, cytogenetic analysis, pathogenic biology examination and the like to assist clinical diagnosis, observation of curative effect, judgment of prognosis and the like. The existing bone marrow puncture extraction device needs to firstly use an injection needle to perform anesthesia puncture at a puncture point, then use a bone marrow puncture needle to puncture and extract bone marrow at the same part, the anesthesia puncture and the marrow taking puncture are performed separately, the puncture frequency is more, and the pain of a patient is increased. The invention patent with patent number 201810131112.9 in the prior art discloses a bone marrow puncture extraction device for a blood internal medicine, wherein an anesthesia needle cylinder and a bone marrow needle cylinder are connected through a U-shaped pipe, anesthesia injection and bone marrow extraction can be carried out sequentially by puncture once, the puncture times can be obviously reduced, and the pain of a patient is reduced. The applicant has however perceived that the patent is still deficient. On one hand, the puncture needle of the device is a hollow needle body, and no needle core is arranged in the puncture process, so that the puncture needle is easily blocked in the early puncture process, and the subsequent anesthesia and bone marrow extraction operation are influenced. On the other hand, the anesthetic injection and the bone marrow aspiration of the device have a common channel, and the anesthetic remaining in the puncture needle is easily aspirated away together when the bone marrow is aspirated, thereby risking contamination of the sample.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a rotary type marrow puncture needle for hematology department, which can solve the problem of reducing puncture times and can also avoid the problems of blocking the puncture needle and polluting samples in the puncture process.
In order to solve the technical problems, the invention provides the following technical scheme: a rotary marrow puncture needle for hematology department comprises a cylindrical shell, a puncture needle core component, an anesthetic needle and a marrow extracting needle;
one end of the cylindrical shell is provided with a closed end plate, the other end of the cylindrical shell is provided with a rotary cover, a central shaft is arranged in the cylindrical shell along the axis direction of the cylindrical shell, one end of the central shaft is fixedly connected with the closed end plate of the cylindrical shell, 3 circular through holes are uniformly distributed on the closed end plate around the central shaft, and a puncture needle with a hollow structure is arranged at the position, corresponding to the through hole at the middle position, of the outer side of the closed end plate of the cylindrical shell;
the central shaft is sleeved with a rotating sleeve, the rotating sleeve is fixedly sleeved with a linkage disk, 3 circular through holes are uniformly distributed on the linkage disk around the rotating sleeve, the rotating cover comprises a cover body buckled on the cylindrical shell and a positioning disk arranged on the inner side of the cover body, 3 cylindrical channels are uniformly distributed on the positioning disk and the cover body around the center, and the positions of the 3 cylindrical channels correspond to the positions of the 3 circular through holes on the linkage disk;
the puncture needle core assembly comprises a needle core body and a puncture control handle, the puncture control handle is arranged in one cylindrical channel of the rotary cover in a penetrating mode, the tail end of the needle core body is connected with the puncture control handle, the head end of the needle core body penetrates through the circular through hole corresponding to the linkage disc, the anesthetic needle comprises an anesthetic needle cylinder, a piston and a push-pull rod, the piston and the push-pull rod are arranged in the anesthetic needle cylinder, the medulla extracting needle comprises a medulla extracting needle cylinder, a piston and a push-pull rod, the piston and the push-pull rod are arranged in the medulla extracting needle cylinder, the anesthetic needle cylinder and the medulla extracting needle cylinder are arranged in the other two channels of the rotary cover in a penetrating mode respectively, and the head ends of the.
The invention relates to a further optimization of a bone marrow puncture needle for rotary hematology: the position that the lid outer wall of rotatory lid corresponds puncture needle core, anesthesia needle and take out the broach is provided with sign A, B and C respectively, the position that the lateral wall of cylinder shell corresponds the pjncture needle is equipped with sign D, when rotatory lid rotates when sign A aligns with sign D, the axis coincides each other between puncture needle core and the pjncture needle, when rotatory lid rotates when sign B aligns with sign D, the axis coincides each other between anesthesia needle and the pjncture needle, when rotatory lid rotates when sign C aligns with sign D, take out the broach and the pjncture needle between the axis coincide each other.
The invention relates to a further optimization of a bone marrow puncture needle for rotary hematology: the puncture control handle outer wall symmetry of puncture nook closing member is provided with two flanks, and the cylindrical passageway inner wall symmetry that the swivel cap corresponds the puncture nook closing member is equipped with two spouts that set up along its length direction, and two flanks of puncture control handle are arranged in two spouts respectively, and the upper and lower both ends that this cylindrical passageway's inner wall lies in the spout still are provided with spacing annular respectively, and spacing annular communicates each other with the spout, makes the flank of puncture control handle can slide into in the spacing annular.
The invention relates to a further optimization of a bone marrow puncture needle for rotary hematology: the diameter of the circular through hole corresponding to the anesthetic needle on the linkage disc is larger than the outer diameter of the anesthetic needle cylinder, an elastic ring is arranged in the circular through hole, and the inner diameter of the elastic ring is slightly smaller than the outer diameter of the anesthetic needle cylinder.
The invention relates to a further optimization of a bone marrow puncture needle for rotary hematology: the diameter of a circular through hole corresponding to the medullary extracting needle on the linkage disc is larger than the outer diameter of the medullary extracting needle cylinder, an elastic ring is arranged in the circular through hole, and the inner diameter of the elastic ring is slightly smaller than the outer diameter of the medullary extracting needle cylinder.
The invention relates to a further optimization of a bone marrow puncture needle for rotary hematology: and sealing rubber plugs are arranged at the through holes on the two sides of the closed end plate.
The invention relates to a further optimization of a bone marrow puncture needle for rotary hematology: the puncture needle comprises a cylindrical part and a sharp part which are integrally connected, and the puncture needle is fixed on a closed end plate of the cylindrical shell through the cylindrical part.
The invention relates to a further optimization of a bone marrow puncture needle for rotary hematology: a micro motor is arranged in the puncture control handle, the tail end of the puncture needle core is connected with an output shaft of the micro motor, and a switch of the micro motor is arranged at the tail end of the puncture control handle.
Advantageous effects
1. The bone marrow puncture needle can perform anesthesia injection and bone marrow extraction in sequence through one puncture, when the puncture operation is performed, the rotating cover is rotated to enable the axis between the puncture needle core and the puncture needle to coincide, the puncture needle core is pushed to enable the head end to penetrate into the puncture needle, then the puncture operation is performed, when large resistance is met in the puncture process, the head end of the puncture needle core can be judged to be against the ilium, at the moment, the puncture needle core is extracted and rotated again, the axis between the anesthesia needle and the puncture needle coincides, the head end of the anesthesia needle is pushed to penetrate into the puncture needle, the anesthesia injection operation is performed, after the operation is finished, the puncture needle core is penetrated into the puncture needle again, the motor drives the needle core to rotate to help the ilium, after the needle core penetrates into the ilium, the puncture needle core is extracted, and the marrow extraction needle is placed into the puncture needle, and then the marrow extraction operation can be. Of course, the anesthesia needle can be directly placed into the puncture needle for puncture before use, and the puncture needle core is replaced for iliac puncture after anesthesia injection is finished, which can be adjusted according to actual puncture requirements. The puncture needle can reduce the puncture times in the process of bone marrow extraction and reduce the pain of patients;
2. the bone marrow puncture needle of the invention is provided with the puncture needle core, therefore, the puncture needle can not be blocked in the puncture process, and the anesthesia injection and the bone marrow extraction can be respectively carried out by penetrating the puncture needle through respective needle heads, thus causing no pollution to each other.
Drawings
FIG. 1 is a schematic view showing the external structure of a bone marrow puncture needle (puncture state) according to the present invention;
FIG. 2 is a schematic view showing the external structure of the bone marrow puncture needle (in a state of extracting the marrow) according to the present invention;
FIG. 3 is a schematic view showing a split structure of the bone marrow puncture needle according to the present invention;
FIG. 4 is a schematic structural view of a puncture needle core in the bone marrow puncture needle of the present invention;
FIG. 5 is a schematic view of the structure of an anesthetic needle of the bone marrow puncture needle according to the present invention;
FIG. 6 is a schematic view showing the connection relationship of the linkage assemblies (rotary sleeve, rotary cap, linkage disk and positioning disk) in the bone marrow puncture needle according to the present invention;
FIG. 7 is a schematic view showing the structure of a cylindrical casing in the bone marrow puncture needle according to the present invention;
FIG. 8 is a schematic diagram showing the positional relationship between a limiting ring groove and a sliding groove in the bone marrow puncture needle according to the present invention;
the labels in the figure are: 1. the device comprises a cylindrical shell, 2, a puncture needle, 3, an anesthetic needle, 4, a medullary withdrawal needle, 5, a closed end plate, 6, a rotary cover, 7, a central shaft, 8, a rotary sleeve, 9, a linkage disc, 10, a cover body, 11, a positioning disc, 12, a needle core body, 13, a puncture control handle, 14, a side wing, 15, a sliding groove, 16 and a limiting ring groove.
Detailed Description
The following detailed description of the preferred embodiments will be made with reference to the accompanying drawings.
Example 1
As shown in the figure: a rotary marrow puncture needle for hematology department comprises a cylindrical shell 1, a puncture needle 2, a puncture needle core component, an anesthetic needle 3 and a marrow extracting needle 4, wherein the puncture needle 2 is a main puncture component, and the puncture needle core component can extend into the puncture needle 2 to play a role in assisting puncture. One end of the cylindrical shell 1 is provided with a closed end plate 5, the other end of the cylindrical shell 1 is provided with a rotary cover 6, and the rotary cover 6 only rotates and does not move along the axial direction of the cylindrical shell 1. A central shaft 7 is arranged in the cylindrical shell 1 along the axial direction, one end of the central shaft 7 is fixedly connected with a closed end plate 5 of the cylindrical shell 1, the central shaft 7 is used for providing a rotary support for a rotary sleeve 8, 3 circular through holes are uniformly distributed on the closed end plate 5 around the central shaft 7, wherein, the through hole positioned in the middle position is a shared channel of the puncture needle core component, the anesthetic needle 3 and the medullary withdrawal needle 4, therefore, the diameter of the through hole is larger than the outer diameter of the needle cylinder of the anesthetic needle 3 and the medullary needle 4, the other two through holes only need to be penetrated by the needle heads of the anesthetic needle 3 and the medullary withdrawal needle 4, the diameter can be a little smaller, the two through holes are provided with the sealing rubber plugs, the thickness of the sealing rubber plugs does not need to be too thick, the sealing rubber plugs can be isolated, and the needles of the anesthesia needle 3 and the medullary needle 4 can conveniently pierce the sealing rubber plugs. A puncture needle 2 with a hollow structure is arranged at a through hole corresponding to the middle position on the outer side of the closed end plate 5 of the cylindrical shell 1, the puncture needle 2 comprises a cylindrical part and a sharp part which are integrally connected, and the puncture needle 2 is fixed on the closed end plate 5 of the cylindrical shell 1 through the cylindrical part. 7 overcoat of center pin of cylinder shell 1 is equipped with swivel casing 8, fixed cover is equipped with linkage dish 9 on swivel casing 8, it has 3 circular through-holes to surround 8 evenly distributed of swivel casing on the linkage dish 9, swivel cover 6 is including detaining lid 10 and the positioning disk 11 of setting in lid 10 inboard established on cylinder shell 1, swivel casing 8's one end fixed connection is on positioning disk 11, when swivel cover 6 pivoted, drive swivel casing 8 and rotate, and then drive linkage dish 9 and rotate, the outer lane of linkage dish 9 can set up round elastic rubber ring, make and produce certain frictional force between linkage dish 9 and the cylinder shell 1, make swivel cover 6 can not rotate easily, can keep certain stability. 3 cylindrical passages are uniformly distributed on the positioning disc 11 and the cover body 10 around the center, and the positions of the 3 cylindrical passages correspond to the positions of the 3 circular through holes on the linkage disc 9. The puncture needle core assembly comprises a needle core body 12 and a puncture control handle 13, the puncture control handle 13 is arranged in one of the cylindrical channels on the rotary cover 6 in a penetrating mode, the tail end of the needle core body 12 is connected with the puncture control handle 13, the head end of the needle core body 12 penetrates through the circular through hole corresponding to the linkage disc 9, the anesthetic needle 3 comprises an anesthetic needle cylinder, a piston and a push-pull rod, the piston and the push-pull rod are arranged in the anesthetic needle cylinder, the medullary withdrawal needle 4 comprises a medullary withdrawal needle cylinder, a piston and a push-pull rod, the piston and the push-pull rod are arranged in the medullary withdrawal needle cylinder, the anesthetic needle cylinder and the medullary withdrawal needle cylinder are arranged in the other two channels of the rotary cover 6 in a penetrating mode respectively, and the. In order to facilitate the rotating operation of an operator, the outer wall of the cover body 10 of the rotating cover 6 corresponds to the stylet body 12, the positions of the anesthetic needle 3 and the medullary withdrawal needle 4 are respectively provided with marks A, B and C, the position of the side wall of the cylindrical shell 1 corresponding to the puncture needle 2 is provided with a mark D, when the rotating cover 6 rotates to align the mark A and the mark D, the axes of the puncture stylet and the puncture needle 2 coincide with each other, when the rotating cover 6 rotates to align the mark B and the mark D, the axes of the anesthetic needle 3 and the puncture needle 2 coincide with each other, when the rotating cover 6 rotates to align the mark C and the mark D, the axes of the medullary withdrawal needle 4 and the puncture needle 2 coincide with each other. In order to prevent the puncture needle core from axially moving with the puncture needle 2 in the puncture process, the outer wall of the puncture control handle 13 of the puncture needle core assembly is symmetrically provided with two side wings 14, the inner wall of the cylindrical channel of the rotary cover 6 corresponding to the puncture needle core is symmetrically provided with two sliding grooves 15 arranged along the length direction, the two side wings 14 of the puncture control handle 13 are respectively arranged in the two sliding grooves 15, the inner wall of the cylindrical channel is positioned at the upper end and the lower end of the sliding grooves 15 and is also respectively provided with a limit ring groove 16, the limit ring grooves 16 are mutually communicated with the sliding grooves 15, so that the side wings 14 of the puncture control handle 13 can slide into the limit ring grooves 16, the two limit ring grooves 16 represent two states of the puncture control handle 13, when the side wings 14 of the puncture control handle 13 slide into the limit ring grooves 16 at the lower end, the puncture needle core extends into the puncture needle 2, at the puncture operation state, when the side wings 14, the core is removed from the needle 2 and the needle 3 or the needle 4 can be transferred to the needle 2. In order to ensure that the anesthetic needle 3 and the medullary withdrawal needle 4 do not easily displace after moving to the required positions in the axial direction, the diameter of the circular through hole corresponding to the anesthetic needle 3 on the linkage disk 9 is larger than the outer diameter of the anesthetic needle cylinder, an elastic ring is arranged in the circular through hole, and the inner diameter of the elastic ring is slightly smaller than the outer diameter of the anesthetic needle cylinder. The diameter of the circular through hole corresponding to the medullary needle 4 on the linkage disc 9 is larger than the outer diameter of the medullary needle cylinder, an elastic ring is arranged in the circular through hole, the inner diameter of the elastic ring is slightly smaller than the outer diameter of the medullary needle cylinder, and certain friction force is generated between the elastic ring and the outer walls of the anesthetic needle 3 and the medullary needle 4, so that when the anesthetic needle 3 and the medullary needle 4 move to a required position, the anesthetic needle and the medullary needle are not easy to move again due to other external forces.
The invention relates to a method for using a rotary type marrow puncture needle for hematology, which comprises the following steps:
1. preparation before puncture
The puncture needle is disinfected, the anesthesia needle is pushed to move downwards, the needle head of the anesthesia needle penetrates out of the sealing rubber plug, anesthetic is sucked (2% lidocaine is generally selected for anesthesia and is not used for skin test), and then the anesthesia needle is moved upwards and is withdrawn into the shell.
2. Selecting a puncture point
Let the patient lie well, let it feel comfortable as far as possible, choose the posterior superior iliac spine more, the patient takes the lateral position or prone position all can, confirm the point of puncture, make cross indentation mark with the nail, and disinfect.
3. Anaesthesia
The rotating cover is rotated to enable the axis between the puncture needle core and the puncture needle to coincide, the puncture control handle is pushed to move downwards, the side wing reaches the limiting ring groove at the lower end, then the puncture control handle is rotated to enable the side wing to slide into the limiting ring groove, at the moment, the puncture needle core extends into the puncture needle, the puncture needle can be vertically punctured from a puncture point, only subcutaneous and subperiosteal of a key anesthesia puncture position is needed, after resistance is obviously met, the puncture needle core is drawn out, the rotating cover is rotated to enable the axis between the anesthesia needle and the puncture needle to coincide, the anesthesia needle cylinder is pushed downwards, the anesthesia needle head is enabled to extend out of the puncture.
4. Puncture needle
The rotating cover is rotated to enable the axis between the puncture needle core and the puncture needle to coincide, the puncture control handle is pushed to move downwards, the side wing reaches the limiting ring groove at the lower end, then the puncture control handle is rotated to enable the side wing to slide into the limiting ring groove, at the moment, the puncture needle core extends into the puncture needle, downward force is manually applied, and the puncture needle penetrates through periosteum cortex lycii to reach cancellous bone full of bone marrow.
5. Marrow extraction device
Rotating the rotary cover to enable the axial line between the marrow extracting needle and the puncture needle to coincide, pushing the marrow extracting needle cylinder downwards to enable the marrow extracting needle head to extend out of the puncture needle, then extracting marrow liquid, rotating the marrow back and forth after the marrow extraction is finished, extracting the puncture needle, and transferring the marrow liquid to the sampling box. After the needle hole is pulled out, the needle hole is pressed with sterile gauze for several seconds to several minutes to prevent the needle hole from bleeding, and then the needle hole is covered with sterile gauze or a patch.
Example 2
The whole structure of the puncture needle of the present embodiment is the same as that of embodiment 1, except that:
a micro motor is arranged in the puncture control handle 13, the tail end of the puncture needle core is connected with an output shaft of the micro motor, and a switch of the micro motor is arranged at the tail end of the puncture control handle 13. In the puncture operation process, the rotating cover is rotated to enable the axis between the puncture needle core and the puncture needle to coincide, the puncture control handle is pushed to move downwards, the side wing reaches the limiting ring groove at the lower end, then the puncture control handle is rotated to enable the side wing to slide into the limiting ring groove, at the moment, the puncture needle core extends into the puncture needle, the switch of the motor is started to enable the puncture needle core to rotate, downward force is manually applied to match the rotation of the puncture needle, and then the puncture needle can penetrate through the cortical bone of the bone more easily to reach the cancellous bone full of bone marrow.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A rotation type is bone marrow pjncture needle for hematology branch of academic or vocational study which characterized in that: comprises a cylindrical shell (1), a puncture needle (2), a puncture needle core component, an anesthetic needle (3) and a medullary withdrawal needle (4);
a closed end plate (5) is arranged at one end of the cylindrical shell (1), a rotary cover (6) is arranged at the other end of the cylindrical shell (1), a central shaft (7) is arranged in the cylindrical shell (1) along the axis direction of the cylindrical shell, one end of the central shaft (7) is fixedly connected with the closed end plate (5) of the cylindrical shell (1), 3 circular through holes are uniformly distributed on the closed end plate (5) around the central shaft (7), and puncture needles (2) with a hollow structure are arranged at the positions, corresponding to the through holes in the middle, of the outer side of the closed end plate (5) of the cylindrical shell (1);
a rotating sleeve (8) is sleeved outside the central shaft (7), a linkage disc (9) is fixedly sleeved on the rotating sleeve (8), 3 circular through holes are uniformly distributed on the linkage disc (9) around the rotating sleeve (8), the rotating cover (6) comprises a cover body (10) buckled on the cylindrical shell (1) and a positioning disc (11) arranged on the inner side of the cover body (10), 3 cylindrical channels are uniformly distributed on the positioning disc (11) and the cover body (10) around the center, and the positions of the 3 cylindrical channels correspond to the positions of the 3 circular through holes on the linkage disc (9);
the puncture needle core assembly comprises a needle core body (12) and a puncture control handle (13), the puncture control handle (13) is arranged in one of the cylindrical channels on the rotary cover (6) in a penetrating manner, the tail end of the needle core body (12) is connected with the puncture control handle (13), and the head end of the needle core body (12) penetrates through the corresponding circular through hole of the linkage disc (9) to be arranged; the anesthetic needle (3) comprises an anesthetic needle cylinder, a piston and a push-pull rod which are arranged in the anesthetic needle cylinder, the medullary extracting needle (4) comprises a medullary extracting needle cylinder, a piston and a push-pull rod which are arranged in the medullary extracting needle cylinder, the anesthetic needle cylinder and the medullary extracting needle cylinder are respectively arranged in the other two channels of the rotary cover (6) in a penetrating mode, and the head ends of the anesthetic needle cylinder and the medullary extracting needle cylinder are respectively arranged through corresponding circular through holes in the linkage disc (9);
marks A, B and C are respectively arranged at the positions, corresponding to the needle core body (12), the anesthetic needle (3) and the medullary withdrawal needle (4), of the outer wall of the cover body (10) of the rotary cover (6), a mark D is arranged at the position, corresponding to the puncture needle (2), of the side wall of the cylindrical shell (1), when the rotary cover (6) rotates until the mark A and the mark D are aligned, the axes of the puncture needle core and the puncture needle (2) are mutually overlapped, when the rotary cover (6) rotates until the mark B and the mark D are aligned, the axes of the anesthetic needle (3) and the puncture needle (2) are mutually overlapped, and when the rotary cover (6) rotates until the mark C and the mark D are aligned, the axes of the medullary withdrawal needle (4) and the puncture needle (2) are mutually overlapped;
puncture control handle (13) outer wall symmetry of pjncture needle core subassembly is provided with two flank (14), the cylindrical passageway inner wall symmetry that rotatory lid (6) corresponds the puncture needle core is equipped with two spout (15) that set up along its length direction, two flank (14) of puncture control handle (13) are arranged in two spout (15) respectively, the upper and lower both ends that the inner wall of this cylindrical passageway is located spout (15) still are provided with spacing annular (16) respectively, spacing annular (16) communicate with spout (15) each other, make flank (14) of puncture control handle (13) can slide in spacing annular (16).
2. A rotary hematological bone marrow puncture needle according to claim 1 wherein: the diameter of a circular through hole corresponding to the anesthetic needle (3) on the linkage disc (9) is larger than the outer diameter of the anesthetic needle cylinder, an elastic ring is arranged in the circular through hole, and the inner diameter of the elastic ring is slightly smaller than the outer diameter of the anesthetic needle cylinder.
3. A rotary hematological bone marrow puncture needle according to claim 1 wherein: the diameter of a circular through hole corresponding to the medullary extracting needle (4) on the linkage disc (9) is larger than the outer diameter of the medullary extracting needle cylinder, an elastic ring is arranged in the circular through hole, and the inner diameter of the elastic ring is slightly smaller than the outer diameter of the medullary extracting needle cylinder.
4. A rotary hematological bone marrow puncture needle according to claim 1 wherein: and sealing rubber plugs are arranged at the through holes on the two sides of the closed end plate (5).
5. A rotary hematological bone marrow puncture needle according to claim 1 wherein: the puncture needle (2) comprises a cylindrical part and a sharp part which are integrally connected, and the puncture needle (2) is fixed on a closed end plate (5) of the cylindrical shell (1) through the cylindrical part.
6. A rotary hematological bone marrow puncture needle according to claim 1 wherein: a micro motor is arranged in the puncture control handle (13), the tail end of the puncture needle core is connected with an output shaft of the micro motor, and a switch of the micro motor is arranged at the tail end of the puncture control handle (13).
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| CN201811020483.6A CN109009249B (en) | 2018-09-03 | 2018-09-03 | Rotary bone marrow puncture needle for hematology department |
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| CN201811020483.6A CN109009249B (en) | 2018-09-03 | 2018-09-03 | Rotary bone marrow puncture needle for hematology department |
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| CN109009249B true CN109009249B (en) | 2021-02-09 |
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| CN112075958A (en) * | 2019-06-13 | 2020-12-15 | 上海交通大学医学院附属第九人民医院 | Puncture sampling device |
| CN110403641A (en) * | 2019-06-26 | 2019-11-05 | 江苏省肿瘤医院 | A kind of puncture needle with anaesthetic function of injection |
| CN114668428B (en) * | 2022-03-31 | 2023-05-09 | 四川大学华西医院 | Bone marrow puncture device |
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