CN109223054B - Take marrow puncture draw-out device of locating rack - Google Patents
Take marrow puncture draw-out device of locating rack Download PDFInfo
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- CN109223054B CN109223054B CN201811021667.4A CN201811021667A CN109223054B CN 109223054 B CN109223054 B CN 109223054B CN 201811021667 A CN201811021667 A CN 201811021667A CN 109223054 B CN109223054 B CN 109223054B
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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 bone marrow puncture extraction device with a positioning frame, which comprises a bone marrow puncture extraction needle and a puncture positioning frame for auxiliary positioning in a puncture process, wherein the bone marrow puncture extraction needle comprises a cylindrical shell, a puncture needle core assembly, an anesthetic needle and a medullary withdrawal needle, 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 medullary withdrawal needle comprises a medullary withdrawal needle cylinder, a piston and a push-pull rod, the anesthetic needle cylinder and the medullary withdrawal needle cylinder are respectively arranged in the other two channels of a rotary cover in a penetrating manner, and the puncture positioning frame comprises a rectangular frame body, a positioning block, a puncture block, a longitudinal positioning bar. The bone marrow puncture needle of the invention not only can solve the problem of reducing puncture times, but also is provided with the positioning frame, thereby facilitating the puncture and bone marrow fluid extraction operation of medical personnel.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a bone marrow puncture and extraction device with a positioning frame.
Background
The conventional bone marrow puncture needle is similar to a general medical puncture needle and is mainly characterized by comprising a needle seat and a tube-type needle body which are used for connecting with a syringe. The needle seat is fixedly connected with the needle body, and the cavity in the needle seat is used for communicating the needle body with a syringe tube. When the bone marrow is punctured, an injection needle is needed to perform anesthesia puncture at a puncture point, then a bone marrow puncture needle is used to puncture and extract the bone marrow at the same position, the anesthesia puncture and the marrow taking puncture are performed separately, the puncture frequency is high, 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 bone marrow puncture and extraction device with a positioning frame, which not only can solve the problem of reducing puncture times, but also is provided with the positioning frame, so that medical staff can conveniently perform puncture and bone marrow fluid extraction operations.
In order to solve the technical problems, the invention provides the following technical scheme: a bone marrow puncture extraction device with a positioning frame comprises a bone marrow puncture extraction needle and a puncture positioning frame for auxiliary positioning in the puncture process;
the marrow puncture needle comprises a cylindrical shell, a puncture needle core assembly, an anesthetic needle and a medullary withdrawal needle, wherein 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, the puncture needle with a hollow structure is arranged at the through hole position on the outer side of the closed end plate of the cylindrical shell corresponding to the middle position, a rotary sleeve is sleeved outside the central shaft, a linkage disc is fixedly sleeved on the rotary sleeve, 3 circular through holes are uniformly distributed on the linkage disc around the rotary sleeve, the rotary cover comprises a cover body buckled on the cylindrical shell and a positioning disc arranged on the, the positions of the 3 cylindrical channels correspond to the positions of the 3 circular through holes on the linkage disc, the puncture needle core assembly comprises a needle core body and a puncture control handle, the puncture control handle is arranged in one of the cylindrical channels on the rotary cover in a penetrating manner, the tail end of the needle core body is connected with the puncture control handle, and the head end of the needle core body penetrates through the corresponding circular through hole of the linkage disc;
the puncture positioning frame comprises a rectangular frame body, a positioning block, a puncture block, a longitudinal positioning strip, a transverse positioning strip and four supporting legs, wherein the four supporting legs are fixedly arranged at four corners of the rectangular frame body, the inner sides of two short sides of the rectangular frame body are provided with longitudinal sliding grooves, the inner sides of two long sides of the rectangular frame body are provided with the transverse sliding grooves, the horizontal positions of the longitudinal sliding grooves are higher than the transverse sliding grooves, two ends of the longitudinal positioning strip are respectively clamped in the two longitudinal sliding grooves, two ends of the transverse positioning strip are respectively clamped in the two transverse sliding grooves, the longitudinal positioning strip and the transverse positioning strip are both provided with strip-shaped through holes, the through holes of the longitudinal positioning strip and the transverse positioning strip are crossed to form positioning holes, the positioning block and the puncture block comprise a clamping block and a base body block which are integrally connected, the shape of the clamping block is suitable, the fixture block can be clamped in the positioning hole, an infrared emission lamp is embedded in the center of the outer end face of the fixture block of the positioning block, the fixture block and the base block of the puncture block are provided with an integrally communicated through hole, and the inner diameter of the through hole is suitable for the outer diameter of the cylindrical shell of the bone marrow puncture needle.
As a further optimization of the bone marrow puncture extraction device with the positioning frame of the invention: the puncture control handle outer wall symmetry of pjncture needle core subassembly is provided with two flanks, and the cylindrical passageway inner wall symmetry that the swivel cap corresponds the puncture needle core 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 the inner wall of this cylindrical passageway is located 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 in the spacing annular.
As a further optimization of the bone marrow puncture extraction device with the positioning frame of the invention: 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.
As a further optimization of the bone marrow puncture extraction device with the positioning frame of the invention: 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.
As a further optimization of the bone marrow puncture extraction device with the positioning frame of the invention: and sealing rubber plugs are arranged at the through holes on the two sides of the closed end plate.
Advantageous effects
Firstly, the marrow puncture extraction device of the invention can perform anesthesia injection and marrow extraction in sequence through one puncture, during the puncture operation, the rotating cover is rotated to lead the axes of the puncture needle core and the puncture needle to be superposed, and the head end of the puncture needle core is pushed to penetrate into the puncture needle, then puncture operation is carried out, when a large resistance is met in the puncture process, the head end of the puncture needle core can be judged to be propped against the ilium, at the moment, the puncture needle core is drawn out and the rotary cover is rotated again, so that the axis between the anesthetic needle and the puncture needle is superposed, the head end of the anesthetic needle is pushed to penetrate into the puncture needle, performing anesthesia injection operation, after the operation is finished, penetrating the puncture needle core into the puncture needle again, the motor drives the needle core to rotate, the needle core is helped to puncture the ilium, the puncture needle core is drawn out after the needle core penetrates into the ilium, and the marrow drawing needle is placed into the puncture needle, so that the marrow drawing operation can be carried out. 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;
the bone marrow puncture and extraction device is provided with the positioning frame, and due to the unique structure and the use method of the puncture needle, the puncture needle needs to be rotated and pulled for many times in the puncture and extraction processes, so that the puncture needle can be matched with the positioning frame to be used in order to keep the puncture state in the operation process, and the effect is better. After the puncture position is selected, the mounting position of the puncture needle cylinder is just above the puncture position through the matching of the longitudinal positioning strip and the transverse positioning strip on the positioning frame, the puncture needle is mounted in the puncture position of the positioning frame, and the support force can be provided for medical staff in the puncture process so as to smoothly complete the whole puncture and bone marrow fluid extraction work.
Drawings
FIG. 1 is a schematic view showing an external structure of a bone marrow puncture extracting needle (puncture state) in the bone marrow puncture extracting apparatus according to the present invention;
FIG. 2 is a schematic view showing an external structure of a bone marrow puncturing and extracting needle (in a state of extracting marrow) in the bone marrow puncturing and extracting apparatus according to the present invention;
FIG. 3 is a schematic view of a split structure of a bone marrow aspiration needle of the bone marrow aspiration device of the present invention;
FIG. 4 is a schematic view of the configuration of the puncture needle core of the bone marrow aspiration needle of the present invention;
FIG. 5 is a schematic view of an anesthetic needle of the bone marrow aspiration needle of the present invention;
FIG. 6 is a schematic view showing the connection of the linkage assemblies (rotary sleeve, rotary cap, linkage disk and positioning disk) of the bone marrow aspiration needle of the present invention;
FIG. 7 is a schematic view of the cylindrical housing of the bone marrow aspiration needle of the present invention;
FIG. 8 is a schematic view showing the relationship between the position of the limiting ring groove and the sliding groove of the bone marrow aspiration needle of the present invention;
FIG. 9 is a schematic structural view of a puncture positioning frame (positioning state) in the bone marrow puncture extracting apparatus according to the present invention;
FIG. 10 is a schematic view of a puncturing positioning frame (puncturing state) of the bone marrow puncturing and extracting device according to the present invention;
FIG. 11 is a schematic view of a positioning block of the bone marrow aspiration device of the present invention;
FIG. 12 is a schematic view of a piercing block of the bone marrow aspiration device of 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 stylet body, 13, a puncture control handle, 14, a rectangular frame body, 15, a positioning block, 16, a puncture block, 17, a longitudinal positioning strip, 18, a transverse positioning strip, 19, support legs, 20, side wings, 21, sliding grooves, 22 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 bone marrow puncture extraction device with a positioning frame comprises a bone marrow puncture extraction needle and a puncture positioning frame for assisting in positioning in a puncture process.
The marrow puncture extraction needle comprises a cylindrical shell 1, a puncture needle 2, a puncture needle core component, an anesthetic needle 3 and an extraction marrow 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 auxiliary 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 20, the inner wall of the cylindrical channel of the puncture needle core corresponding to the rotary cover 6 is symmetrically provided with two sliding grooves 21 arranged along the length direction, the two side wings 20 of the puncture control handle 13 are respectively arranged in the two sliding grooves 21, the upper and lower ends of the inner wall of the cylindrical channel 21 are respectively provided with a limit ring groove 22, the limit ring grooves 22 are mutually communicated with the sliding grooves 21, so that the side wings 20 of the puncture control handle 13 can slide into the limit ring grooves 22, the two limit ring grooves 22 represent two states of the puncture control handle 13, when the side wings 20 of the puncture control handle 13 slide into the limit ring grooves 22 at the lower end, the puncture needle core extends into the puncture needle 2, the puncture operation state is at the moment, when the side wings 20 of the puncture control handle 13, 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. In order to make the puncture needle penetrate the cortex of the periosteum bone more easily, a micro motor can be 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.
The puncture locating rack comprises a rectangular frame body 14, a locating block 15, a puncture block 16, a longitudinal locating strip 17, a transverse locating strip 18 and four supporting legs 19, the four supporting legs 19 are fixedly arranged at four corners of the rectangular frame body 14, the four supporting legs 19 are used for placing the whole puncture locating rack on a sickbed, the rectangular frame body 14 is positioned right above a patient, the supporting legs 19 adopt a telescopic structure, the telescopic structure of the supporting legs in the prior art is more, and detailed description is not performed any more. The inner sides of two short sides of the rectangular frame body 14 are provided with longitudinal sliding grooves, the inner sides of two long sides of the rectangular frame body 14 are provided with transverse sliding grooves, the horizontal positions of the longitudinal sliding grooves are higher than the transverse sliding grooves, the difference of the horizontal positions is to ensure that the mutual movement of the longitudinal positioning strip 17 and the transverse positioning strip 18 is not interfered, two ends of the longitudinal positioning strip 17 are respectively clamped in the two longitudinal sliding grooves, two ends of the transverse positioning strip 18 are respectively clamped in the two transverse sliding grooves, the longitudinal positioning strip 17 and the transverse positioning strip 18 are both provided with strip-shaped through holes, the through holes of the longitudinal positioning strip 17 and the transverse positioning strip 18 are crossed to form positioning holes, the positioning block 15 and the puncture block 16 both comprise a clamping block and a base block which are integrally connected, the shape of the clamping block is suitable for the shape of the positioning holes, the size of the base block is larger than that of the, the longitudinal positioning strip 17 and the transverse positioning strip 18 can not move any more, so that the positioning block 19 is fixed, the infrared emission lamp is embedded in the center of the outer end face of the clamping block of the positioning block 15, and when the point of the infrared rays emitted by the infrared emission lamp on the skin of a patient is adjusted to coincide with the selected puncture point, the adjustment of the positioning frame is completed. The fixture block and the base block of the puncture block 16 are provided with an integrally communicated through hole, the inner diameter of the through hole is suitable for the outer diameter of the cylindrical shell 1 of the bone marrow puncture needle, and after the positioning is finished, the bone marrow puncture extraction needle penetrates through the through hole to perform subsequent operation.
The use method of the bone marrow puncture and extraction device comprises the following steps:
1. preparation before puncture
The puncture needle is disinfected, the anesthetic needle is pushed to move downwards, the needle head of the anesthetic needle penetrates out of the sealing rubber plug, 2% lidocaine is generally selected for anesthetic absorption without skin test, and then the anesthetic needle moves upwards to be 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. Adjusting and positioning frame
The puncture positioning frame is prevented from being arranged above a patient, the longitudinal positioning strip and the transverse positioning strip are moved through visual observation, the positioning hole is approximately positioned above the puncture point, then the positioning block is placed, the red point and the puncture point are observed, then the positioning block is taken down and is finely adjusted again, finally the red point and the puncture point are superposed, the puncture block is placed, and a bone marrow puncture extraction needle is inserted into a through hole in the puncture block to prepare for puncture operation;
4. 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.
5. 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.
6. 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.
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 (5)
1. The utility model provides a take marrow puncture draw-out device of locating rack which characterized in that: comprises a marrow puncture extraction needle and a puncture positioning frame for auxiliary positioning in the puncture process;
the marrow puncture extraction needle comprises a cylindrical shell (1), a puncture needle (2), a puncture needle core assembly, an anesthetic needle (3) and a marrow extraction needle (4), wherein 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), a central shaft (7) is arranged in the cylindrical shell (1) along the axis direction, 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), the puncture needle (2) with a hollow structure is arranged at the position of the outer side of the closed end plate (5) of the cylindrical shell (1) corresponding to the through hole at the middle position, a rotary sleeve (8) is sleeved outside the central shaft (7), and a linkage disc (9) is fixedly, 3 circular through holes are uniformly distributed on the linkage disc (9) around the rotary sleeve (8), the rotary 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, 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), the head end of the needle core body (12) penetrates through the corresponding circular through hole of the linkage disc (9), and the anesthetic needle (3) comprises an anesthetic needle cylinder, The piston and the push-pull rod are arranged in the anesthesia needle cylinder, the medullary extracting needle (4) comprises a medullary extracting needle cylinder, the piston and the push-pull rod which are arranged in the medullary extracting needle cylinder, the anesthesia needle cylinder and the medullary extracting needle cylinder are respectively arranged in the other two channels of the rotary cover (6) in a penetrating manner, and the head ends of the anesthesia needle cylinder and the medullary extracting needle cylinder are respectively arranged through the corresponding circular through holes on the linkage disc (9);
the puncture positioning frame comprises a rectangular frame body (14), a positioning block (15), a puncture block (16), a longitudinal positioning strip (17), a transverse positioning strip (18) and four supporting legs (19), wherein the four supporting legs (19) are fixedly arranged at four corners of the rectangular frame body (14), the inner sides of two short sides of the rectangular frame body (14) are provided with longitudinal sliding grooves, the inner sides of two long sides of the rectangular frame body (14) are provided with transverse sliding grooves, the horizontal position of each longitudinal sliding groove is higher than that of each transverse sliding groove, the two ends of each longitudinal positioning strip (17) are respectively clamped in the two longitudinal sliding grooves, the two ends of each transverse positioning strip (18) are respectively clamped in the two transverse sliding grooves, the longitudinal positioning strip (17) and the transverse positioning strip (18) are respectively provided with elongated through holes, the through holes of the longitudinal positioning strip (17) and the transverse positioning strip (18) are crossed to form positioning holes, and the positioning block (15) and the puncture block (16) comprise a clamping, the shape of the clamping block is suitable for the shape of the positioning hole, the size of the base body block is larger than that of the clamping block, the clamping block can be clamped in the positioning hole, an infrared emission lamp is embedded in the center of the outer end face of the clamping block of the positioning block (15), the clamping block and the base body block of the puncture block (16) are provided with an integrally communicated through hole, and the inner diameter of the through hole is suitable for the outer diameter of the cylindrical shell (1) of the bone marrow puncture needle.
2. The bone marrow aspiration device with the locating rack of claim 1, wherein: puncture control handle (13) outer wall symmetry of pjncture needle core subassembly is provided with two flank (20), the cylindrical passageway inner wall symmetry that rotatory lid (6) correspond the puncture needle core is equipped with two spout (21) that set up along its length direction, two flank (20) of puncture control handle (13) are arranged in two spout (21) respectively, the upper and lower both ends that the inner wall of this cylindrical passageway is located spout (21) still are provided with spacing annular (22) respectively, spacing annular (22) communicate each other with spout (21), make flank (20) of puncture control handle (13) can slide in spacing annular (22).
3. The bone marrow aspiration device with the locating rack of 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.
4. The bone marrow aspiration device with the locating rack of 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.
5. The bone marrow aspiration device with the locating rack of claim 1, wherein: and sealing rubber plugs are arranged at the through holes on the two sides of the closed end plate (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021667.4A CN109223054B (en) | 2018-09-03 | 2018-09-03 | Take marrow puncture draw-out device of locating rack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811021667.4A CN109223054B (en) | 2018-09-03 | 2018-09-03 | Take marrow puncture draw-out device of locating rack |
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| CN109223054A CN109223054A (en) | 2019-01-18 |
| CN109223054B true CN109223054B (en) | 2021-03-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109965916A (en) * | 2018-10-12 | 2019-07-05 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Negative pressure suction device for aspiration biopsy |
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