CN109567878B - Marrow aspiration biopsy device - Google Patents
Marrow aspiration biopsy device Download PDFInfo
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- CN109567878B CN109567878B CN201811528513.4A CN201811528513A CN109567878B CN 109567878 B CN109567878 B CN 109567878B CN 201811528513 A CN201811528513 A CN 201811528513A CN 109567878 B CN109567878 B CN 109567878B
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- needle tube
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- 238000001574 biopsy Methods 0.000 title claims abstract description 15
- 210000001519 tissue Anatomy 0.000 claims description 31
- 230000000149 penetrating effect Effects 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 7
- 238000009583 bone marrow aspiration Methods 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 238000005070 sampling Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002980 postoperative effect Effects 0.000 abstract 1
- 210000000988 bone and bone Anatomy 0.000 description 3
- 210000001185 bone marrow Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007470 bone biopsy Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000003394 haemopoietic effect Effects 0.000 description 1
- 208000018706 hematopoietic system disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Rheumatology (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Sampling And Sample Adjustment (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses a marrow aspiration biopsy device, and mainly relates to the field of medical instruments. Including the needle tubing, the needle tubing includes hollow first needle tubing portion that communicates each other, second needle tubing portion, the toper point end is established to the one end of first needle tubing portion, the activity is established in first needle tubing portion and is portable to the tissue on the lateral wall of needle tubing opposite side and cut the device, needle tubing support frame is established in the needle tubing outer activity, needle tubing support frame includes the layer board, two articulated dwangs in layer board bottom, the montant is established to the layer board bottom is located between two dwangs, the regulation pole is established to the montant both sides, establish the regulating plate on the regulation pole, establish the mounting panel between the dwang, establish the spout on the mounting panel, establish the slide in the spout, the slide is connected with the dwa. The invention has the beneficial effects that: can solve the problem that exists among the prior art, be convenient for cut off the tissue, be convenient for take out the sample at the postoperative, reduce patient's misery, improve sampling efficiency.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a marrow aspiration biopsy device.
Background
Bone marrow fills the marrow cavity and cancellous bone mesh, and is the main hematopoietic organ of the human body, and abnormalities in the quality and quantity of blood cells are important pathological changes of hematopathy. Bone biopsy and bone marrow examination can be used for diagnosis of hematopoietic diseases, and are common diagnostic examination methods which are easy to popularize and effective in clinic. When a patient is subjected to such medical examination, the patient may suffer great pain during and after the operation because a part of the tissue is extracted or cut from the living body to perform the test and examination. Particularly, in the operation process, due to the structure of the existing puncture biopsy instrument and the particularity of puncture and sample acquisition in the operation, particularly when a needle tube is adopted for bone biopsy and sample taking, after the puncture instrument is inserted into the body of a patient, the stability of the needle tube is controlled by the hand strength of a doctor when sampling, the requirement on the physical strength of the doctor is high, and the needle tube is not beneficial to maintaining the physical strength for the doctor who may need to perform a plurality of operations in one day; after the device enters the body of a patient, the needle tube needs to be rotated and shaken in a reciprocating manner, so that the connection between the sample tissue in the needle tube and the tissue outside the needle tube is cut off by the needle tube, and then the needle tube is pulled out, so that the pain of the surgical part of the patient is aggravated, and the surgical part is damaged more; after the operation is completed, the residual sample in the puncture biopsy instrument can not be effectively taken out, and the sampling efficiency is reduced.
Disclosure of Invention
The invention aims to provide a bone marrow aspiration biopsy device which can solve the problems in the prior art, help doctors to maintain the operation stability, save physical strength, conveniently cut off tissues, conveniently take out samples after operation, reduce the pain of patients and improve the sampling efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a marrow puncture aspiration biopsy device comprises a needle tube, wherein the needle tube comprises a hollow first needle tube part and a hollow second needle tube part connected with the first needle tube part, the first needle tube part is communicated with the second needle tube part, one end of the first needle tube part is provided with a conical tip, a tissue cut-off device which can move to the side wall of the opposite side of the needle tube is movably arranged on the side wall of the first needle tube part close to the tip, a needle tube support frame is movably arranged outside the needle tube and comprises an arc-shaped support plate matched with the needle tube, the bottom of the support plate is hinged with two rotating rods, the bottom of the support plate is positioned between the two rotating rods and is provided with a vertical rod, both sides of the vertical rod are provided with adjusting rods, the adjusting rods are provided with adjusting plates, the adjusting plates can push the rotating rods along the adjusting, the improved positioning device is characterized in that a sliding plate matched with the sliding groove is arranged in the sliding groove and connected with the rotating rod, a plurality of positioning holes are formed in the sliding groove, a plurality of auxiliary positioning holes matched with the positioning holes are formed in the sliding plate, and a bolt is movably arranged between the positioning holes and the auxiliary positioning holes.
The tissue cuts the device including setting up the hole of passing through on the lateral wall of first syringe section, it is located and is close to most advanced position department to pass through the hole, be equipped with first removal hole on the lateral wall of first syringe section, first removal hole with pass through the hole intercommunication, be equipped with the second on the lateral wall of second syringe section and remove the hole, the second removes hole and first removal hole intercommunication, first removal hole removes the hole with the second and constitutes and remove the chamber, it is equipped with elasticity and cuts the board to remove the intracavity activity, cut the board and can follow first removal hole and remove and stretch out to pass through the hole and leave the hole to passing through, cut the one end cross section that is close to of board and passes through the hole and reduce gradually.
The cutting plate is provided with a limiting groove, a rotating support is arranged at the joint of the first moving hole and the penetrating hole, a rotating shaft matched with the limiting groove is arranged on the rotating support, and the rotating shaft can penetrate through the limiting groove.
The tissue cut-off device comprises a through hole arranged on the side wall of the first needle tube part, the through hole is communicated with the hollow part of the first needle tube part, a first spring is arranged in the penetrating hole, a cutting plate is arranged at one end of the first spring close to the first needle tube part, the cross section of one end of the cutting plate close to the penetrating hole is gradually reduced, a sliding groove is arranged on the side wall of the first needle cannula part close to the penetrating hole, a blocking plate is arranged in the sliding groove, the blocking plate can move along the sliding groove to close the penetration hole, an installation cavity is arranged on the side wall of the first needle tube part, the mounting cavity is communicated with the sliding groove, two supporting blocks are arranged in the mounting cavity, a lead screw is arranged between the two supporting blocks, the lead screw is connected with a motor, the motor is connected with a controller, a screw nut is arranged on the lead screw, and a connecting rod is arranged between the screw nut and the interception plate.
The cutting plate comprises a bottom mounting block and a cutting end arranged on the bottom mounting block, a moving groove is formed in the bottom mounting block, a second spring is arranged in the moving groove, and one end, far away from the moving groove, of the second spring is connected with the cutting end.
The needle tube cutting device is characterized in that a positioning groove is formed in the side wall of the first needle tube portion, the cutting plate can stretch into the positioning groove, a jacking plate is arranged in the positioning groove, the length of the jacking plate is slightly smaller than that of the positioning groove, and a pushing spring is arranged between one end, far away from the cutting plate, of the jacking plate and the positioning groove.
Compared with the prior art, the invention has the beneficial effects that:
through set up the needle tubing support frame bottom the needle tubing, can be after the doctor advances the needle, hold up the needle tubing, the help keeps needle tubing stability, make things convenient for the doctor to operate, save physical power, cut the device through setting up the tissue on the needle tubing, can be after the needle tubing gets into, cut off the tissue as required, it is painful to reduce the patient, and simultaneously, set up the needle tubing into first needle tubing portion and second needle tubing portion, can be after the operation, take off second needle tubing portion, make whole needle tubing length shorten, be convenient for take out the sample from first needle tubing portion, and the sampling efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the needle cannula support of the present invention;
FIG. 4 is an enlarged schematic view of portion A of the present invention;
FIG. 5 is an enlarged schematic view of part B of the present invention.
The reference numbers in the drawings: 1. a needle tube; 2. a first needle cannula part; 3. a second needle tube portion; 4. a tip; 5. a needle tube support frame; 6. a support plate; 7. rotating the rod; 8. a vertical rod; 9. adjusting a rod; 10. an adjusting plate; 11. mounting a plate; 12. a chute; 13. a slide plate; 14. positioning holes; 15. auxiliary positioning holes; 16. a bolt; 17. an exit aperture; 18. a first moving hole; 19. a second moving hole; 20. a moving chamber; 21. cutting off the plate; 22. a limiting groove; 23. rotating the bracket; 24. a rotating shaft; 25. a first spring; 26. a sliding groove; 27. a interception plate; 28. a mounting cavity; 29. a support block; 30. a lead screw; 31. a nut; 32. a connecting rod; 33. a bottom mounting block; 34. cutting off the end; 35. a moving groove; 36. a second spring; 37. positioning a groove; 38. a jacking plate; 39. pushing the spring.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it is understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope defined in the present application.
The invention relates to a marrow puncture aspiration biopsy device, which comprises a needle tube 1, wherein the needle tube 1 comprises a hollow first needle tube part 2 and a hollow second needle tube part 3 connected with the first needle tube part 2, the first needle tube part 2 is communicated with the second needle tube part 3, the first needle tube part is detachably connected with the second needle tube part, after the operation is finished, the needle tube can be disassembled into two parts, the length of the needle tube is shortened, a doctor can take out a collected sample from the first needle tube part closer to a sampling part conveniently, preferably, the first needle tube part and the second needle tube part can be clamped or in threaded connection, the operation is simple and convenient, one end of the first needle tube part 2 is provided with a conical tip 4 which is convenient for the needle tube to enter, the side wall of the first needle tube part 2 close to the tip 4 is movably provided with a tissue cut-off device which can move to the side wall at the opposite side of the needle tube, and the tissue, be convenient for cuting the tissue as required, alleviate patient's misery, needle tubing 1 is outer to be moved and is equipped with needle tubing support frame 5, needle tubing support frame 5 includes curved layer board 6 with needle tubing 1 matched with, and the layer board supports in the needle tubing below, after the doctor promoted the needle tubing and gets into the required position, provides the holding power for the needle tubing, and the doctor of being convenient for carries out other operations, and saves doctor's physical power, layer board 6 bottom articulates two dwang 7, layer board 6 bottom is located and is equipped with montant 8 between two dwang 7, montant 8 both sides all are equipped with regulation pole 9, be equipped with regulating plate 10 on regulating pole 9, regulating plate 10 can promote dwang 7 along adjusting pole 9 rotation, and the regulating plate can be more accurate enlarge or reduce the distance between two regulating plates and adjust the distance between two dwang, and then adjust the distance of layer board apart from, two be equipped with mounting panel 11 between dwang 7, be equipped with spout 12 on the mounting panel 11, be equipped with the slide 13 that suits with spout 12 in the spout 12, slide 13 is connected with dwang 7, be equipped with a plurality of locating holes 14 in the spout 12, be equipped with a plurality of auxiliary positioning holes 15 with locating hole 14 matched with on the slide 13, the activity is equipped with bolt 16 between locating hole 14 and the auxiliary positioning hole 15, and through the further position of convenient fixed dwang of bolt, the dwang is avoided producing when not needing and is removed. Preferably, the auxiliary mounting plate is movably arranged at the bottom of the mounting plate, the tightening bolt is arranged between the auxiliary mounting plate and the mounting plate, and the mounting plate is fixedly arranged above the bed plate through the auxiliary mounting plate and the tightening bolt, so that the supporting stability is further improved.
When the device is used, a patient is disinfected, draped and anesthetized, a needle tube on the device is inserted into a bone for puncture, a needle tube support frame is supported below the needle tube after the device reaches a required position, a tissue cutting device is used for cutting off a tissue, bone marrow is extracted, a bone marrow sample is obtained, and then the needle is pulled out.
In order to facilitate tissue cutting, the tissue cutting device comprises a penetrating hole 17 arranged on the side wall of the first needle tube part 2, the penetrating hole 17 is located at a position close to the tip 4, a first moving hole 18 is arranged on the side wall of the first needle tube part 2, the first moving hole 18 is communicated with the penetrating hole 17, a second moving hole 19 is arranged on the side wall of the second needle tube part 3, the second moving hole 19 is communicated with the first moving hole 18, the first moving hole 18 and the second moving hole 19 form a moving cavity 20, an elastic cutting plate 21 is movably arranged in the moving cavity 20, the cutting plate 21 can move towards the penetrating hole 17 along the first moving hole 18 and extend out of the penetrating hole 17, the cross section of one end, close to the penetrating hole 17, of the cutting plate 21 is gradually reduced, when needed, a doctor pushes the cutting plate to move towards the first moving hole from the second moving hole and extend out of the penetrating hole, the tissue is cut off through the relatively sharp end part of the cutting-off plate, and the requirement of cutting off the tissue is met.
In order to better control the movement of the cutting plate and avoid the deflection, a limiting groove 22 is formed in the cutting plate 21, a rotating support 23 is arranged at the joint of the first moving hole 18 and the penetrating hole 17, a rotating shaft 24 matched with the limiting groove 22 is arranged on the rotating support 23, the rotating shaft 24 can penetrate through the limiting groove 22, and the movement track of the cutting plate is limited through the matching of the limiting groove in the cutting plate and the rotating shaft, so that the better control of the movement of the cutting plate is facilitated.
In order to meet the requirement of tissue truncation, the tissue truncation device comprises a perforation hole 17 formed in the side wall of the first needle tube portion 2, the perforation hole 17 is communicated with the hollow portion of the first needle tube portion 2, a first spring 25 is arranged in the perforation hole 17, a truncation plate 21 is arranged at one end, close to the first needle tube portion 2, of the first spring 25, the cross section of one end, close to the perforation hole 17, of the truncation plate 21 is gradually reduced, the truncation plate is pushed to move out through the elasticity of the first spring and to cut off the tissue, a sliding groove 26 is formed in the side wall of the first needle tube portion 2, close to the perforation hole 17, of the sliding groove 26, a truncation plate 27 is arranged in the sliding groove 26, the truncation plate 27 can close the perforation hole 17 through moving of the sliding groove 26, the truncation plate closes the perforation hole, so that the truncation plate stays in the perforation hole, when the truncation plate moves to expose the perforation hole, the truncation plate moves out and cuts off the tissue under the action, the side wall of the first needle tube part 2 is provided with a mounting cavity 28, the mounting cavity 28 is communicated with the sliding groove 26, two supporting blocks 29 are arranged in the mounting cavity 28, a lead screw 30 is arranged between the two supporting blocks 29, the lead screw 30 is connected with a motor, the motor is connected with a controller, a nut 31 is arranged on the lead screw 30, a connecting rod 32 is arranged between the nut 31 and the intercepting plate 27, and the connecting rod is controlled to drive the intercepting plate to move by controlling the motor to work, so that the through hole is closed or exposed, and the intercepting plate is controlled to move. Cut off the bottom storehouse board that the board constitutes first syringe portion simultaneously, the sample that the help was taken more completely remains in first syringe portion, avoids the appearance of the circumstances such as landing that probably appears at the removal in-process.
In order to shorten the length of cutting plate and help the better pop-up of cutting plate and cut the tissue, cutting plate 21 includes bottom installation piece 33 and the end 34 of cutting of setting on bottom installation piece 33, be equipped with shifting chute 35 on bottom installation piece 33, be equipped with second spring 36 in the shifting chute 35, the one end that shifting chute 35 was kept away from to second spring 36 is connected with end 34 of cutting, and through the assistance of second spring, the strength that increases the pop-up of cutting plate, the tissue that cuts that can be better.
For the convenience of better fixed tissue that shifts out cuts the device help and seals first syringe portion, be equipped with constant head tank 37 on the lateral wall of first syringe portion 2, cut off board 21 and can stretch into in the constant head tank 37, be equipped with the tight board 38 in the constant head tank 37, tight board 38 length in top slightly is less than the length of constant head tank 37, be equipped with between the one end of the disconnected board 21 of keeping away from of top tight board 38 and the constant head tank 37 and promote spring 39, when cutting the board downstream to being close to the constant head tank, the tight board in top is cut the board and is promoted the rearward movement, and the tight board that cuts is pasted tightly under the effect that promotes spring simultaneously, constitutes a comparatively inclosed bottom, is convenient for seal the sample of gathering, the preferred, and the one end that is close to the disconnected board of top tight board is the inclined plane that suits with cutting the board, can be better with.
Example 1:
a marrow puncture aspiration biopsy device comprises a needle tube 1, wherein the needle tube 1 comprises a hollow first needle tube part 2 and a hollow second needle tube part 3 connected with the first needle tube part 2, the first needle tube part 2 is communicated with the second needle tube part 3, the first needle tube part is in threaded connection with the second needle tube part, one end of the first needle tube part 2 is provided with a conical tip 4, a tissue intercepting device which can move to the side wall of the opposite side of the needle tube is movably arranged on the side wall of the first needle tube part 2 close to the tip 4, the tissue intercepting device comprises a through hole 17 arranged on the side wall of the first needle tube part 2, the through hole 17 is positioned at the position close to the tip 4, a first moving hole 18 is arranged on the side wall of the first needle tube part 2, the first moving hole 18 is communicated with the through hole 17, a second moving hole 19 is arranged on the side wall of the second needle tube part 3, and the second moving hole 19 is communicated with the first moving hole 18, the first moving hole 18 and the second moving hole 19 form a moving cavity 20, an elastic cut-off plate 21 is movably arranged in the moving cavity 20, the cut-off plate 21 can move towards the penetrating hole 17 along the first moving hole 18 and extend out of the penetrating hole 17, the cross section of one end, close to the penetrating hole 17, of the cut-off plate 21 is gradually reduced, a limiting groove 22 is formed in the cut-off plate 21, a rotating support 23 is arranged at the joint of the first moving hole 18 and the penetrating hole 17, a rotating shaft 24 matched with the limiting groove 22 is arranged on the rotating support 23, the rotating shaft 24 can penetrate through the limiting groove 22, a positioning groove 37 is formed in the side wall of the first needle tube part 2, the cut-off plate 21 can extend into the positioning groove 37, a puller plate 38 is arranged in the positioning groove 37, the length of the puller plate 38 is slightly smaller than that of the positioning groove 37, a pushing spring 39 is arranged between one end, far away from the cut-off plate 21, of the puller plate 38 and the, the needle tube 1 is movably provided with a needle tube support frame 5, the needle tube support frame 5 comprises an arc-shaped support plate 6 matched with the needle tube 1, the bottom of the support plate 6 is hinged with two rotating rods 7, a vertical rod 8 is arranged between the two rotating rods 7 at the bottom of the support plate 6, two sides of the vertical rod 8 are respectively provided with an adjusting rod 9, an adjusting plate 10 is arranged on the adjusting rod 9, the adjusting plate 10 can push the rotating rods 7 by rotating along the adjusting rod 9, the adjusting plate can accurately enlarge or reduce the distance between the two adjusting plates to adjust the distance between the two rotating rods, so as to adjust the distance between the support plate and a bed plate, a mounting plate 11 is arranged between the rotating rods 7, a chute 12 is arranged on the mounting plate 11, a sliding plate 13 matched with the chute 12 is arranged in the chute 12, the sliding plate 13 is connected with the rotating, the sliding plate 13 is provided with a plurality of auxiliary positioning holes 15 matched with the positioning holes 14, a bolt 16 is movably arranged between the positioning hole 14 and the auxiliary positioning hole 15, an auxiliary mounting plate is movably arranged at the bottom of the mounting plate, and a tightening bolt is arranged between the auxiliary mounting plate and the mounting plate.
Example 2:
a marrow puncture aspiration biopsy device comprises a needle tube 1, wherein the needle tube 1 comprises a hollow first needle tube part 2 and a hollow second needle tube part 3 connected with the first needle tube part 2, the first needle tube part 2 is communicated with the second needle tube part 3, the first needle tube part is in threaded connection with the second needle tube part, one end of the first needle tube part 2 is provided with a conical tip 4, a tissue cut-off device capable of moving to the side wall of the opposite side of the needle tube is movably arranged on the side wall of the first needle tube part 2 close to the tip 4, the tissue cut-off device comprises a through hole 17 arranged on the side wall of the first needle tube part 2, the through hole 17 is communicated with the hollow part of the first needle tube part 2, a first spring 25 is arranged in the through hole 17, one end, close to the first needle tube part 2, of the first spring 25 is provided with a cut-off plate 21, and the cross section of one end, close to the through, the cutting plate 21 comprises a bottom mounting block 33 and a cutting end 34 arranged on the bottom mounting block 33, a moving groove 35 is arranged on the bottom mounting block 33, a second spring 36 is arranged in the moving groove 35, one end, far away from the moving groove 35, of the second spring 36 is connected with the cutting end 34, a sliding groove 26 is arranged on the side wall of the first needle tube part 2, close to the through hole 17, a blocking plate 27 is arranged in the sliding groove 26, the blocking plate 27 can move along the sliding groove 26 to close the through hole 17, a mounting cavity 28 is arranged on the side wall of the first needle tube part 2, the mounting cavity 28 is communicated with the sliding groove 26, two supporting blocks 29 are arranged in the mounting cavity 28, a lead screw 30 is arranged between the two supporting blocks 29, the lead screw 30 is connected with a motor, the motor is connected with a controller, a screw 31 is arranged on the lead screw 30, a connecting rod 32 is arranged between the screw 31 and the blocking plate 27, the needle tube comprises a first needle tube part 2, and is characterized in that a positioning groove 37 is formed in the side wall of the first needle tube part 2, a cutting plate 21 can extend into the positioning groove 37, a tightening plate 38 is arranged in the positioning groove 37, the length of the tightening plate 38 is slightly smaller than that of the positioning groove 37, a pushing spring 39 is arranged between one end of the tightening plate 38, which is far away from the cutting plate 21, and the positioning groove 37, a needle tube support frame 5 is movably arranged outside the needle tube 1, the needle tube support frame 5 comprises a curved support plate 6 matched with the needle tube 1, the bottom of the support plate 6 is hinged with two rotating rods 7, a vertical rod 8 is arranged between the two rotating rods 7 at the bottom of the support plate 6, adjusting rods 9 are arranged on two sides of the vertical rod 8, an adjusting plate 10 is arranged on the adjusting rod 9, the adjusting plate 10 can push, be equipped with the slide 13 that suits with spout 12 in the spout 12, slide 13 is connected with dwang 7, be equipped with a plurality of locating holes 14 in the spout 12, be equipped with a plurality of auxiliary positioning holes 15 with locating hole 14 matched with on the slide 13, the activity is equipped with bolt 16 between locating hole 14 and the auxiliary positioning hole 15, sets up supplementary mounting panel in the activity of mounting panel bottom, sets up the bolt of screwing up between supplementary mounting panel and mounting panel.
Claims (4)
1. The utility model provides a marrow aspiration biopsy device, includes needle tubing (1), characterized by: the needle tube (1) comprises a hollow first needle tube part (2) and a hollow second needle tube part (3) connected with the first needle tube part (2), the first needle tube part (2) is communicated with the second needle tube part (3), one end of the first needle tube part (2) is provided with a conical tip (4), the side wall, close to the tip (4), of the first needle tube part (2) is movably provided with a movable tissue cut-off device which can move to the side wall on the opposite side of the needle tube, the needle tube (1) is movably provided with a needle tube support frame (5), the needle tube support frame (5) comprises a curved support plate (6) matched with the needle tube (1), the bottom of the support plate (6) is hinged with two rotating rods (7), the bottom of the support plate (6) is arranged between the two rotating rods (7) and is provided with a vertical rod (8), both sides of the vertical rod (8) are provided with adjusting rods (9), and an, the adjusting plate (10) can push the rotating rods (7) by rotating along the adjusting rod (9), a mounting plate (11) is arranged between the two rotating rods (7), a sliding groove (12) is formed in the mounting plate (11), a sliding plate (13) matched with the sliding groove (12) is arranged in the sliding groove (12), the sliding plate (13) is connected with the rotating rods (7), a plurality of positioning holes (14) are formed in the sliding groove (12), a plurality of auxiliary positioning holes (15) matched with the positioning holes (14) are formed in the sliding plate (13), and a bolt (16) is movably arranged between the positioning holes (14) and the auxiliary positioning holes (15);
the tissue cutting device comprises a penetration hole (17) arranged on the side wall of the first needle tube part (2), the penetration hole (17) is positioned at a position close to the tip (4), the side wall of the first needle tube part (2) is provided with a first moving hole (18), the first moving hole (18) is communicated with the penetrating hole (17), the side wall of the second needle tube part (3) is provided with a second moving hole (19), the second moving hole (19) is communicated with the first moving hole (18), the first moving hole (18) and the second moving hole (19) form a moving cavity (20), an elastic cut-off plate (21) is movably arranged in the moving cavity (20), the cut-off plate (21) can move towards the through hole (17) along the first moving hole (18) and extend out of the through hole (17), the cross section of one end of the cutting plate (21) close to the through hole (17) is gradually reduced;
be equipped with spacing groove (22) on cutting board (21), first removal hole (18) is equipped with rotation support (23) with the junction of penetrating hole (17), be equipped with on rotation support (23) with spacing groove (22) matched with axis of rotation (24), spacing groove (22) can be passed in axis of rotation (24).
2. The bone marrow aspiration biopsy device of claim 1, wherein: the tissue cut-off device comprises a through hole (17) formed in the side wall of a first needle tube part (2), the through hole (17) is communicated with the hollow of the first needle tube part (2), a first spring (25) is arranged in the through hole (17), one end, close to the first needle tube part (2), of the first spring (25) is provided with a cut-off plate (21), the cross section, close to the through hole (17), of one end of the cut-off plate (21) is gradually reduced, a sliding groove (26) is arranged on the side wall of the first needle tube part (2) close to the position of the through hole (17), a blocking plate (27) is arranged in the sliding groove (26), the blocking plate (27) can move along the sliding groove (26) and can be closed to form the through hole (17), an installation cavity (28) is formed in the side wall of the first needle tube part (2), the installation cavity (28) is communicated with the sliding groove (26), two supporting blocks (29) are arranged in the installation cavity (28, a lead screw (30) is arranged between the two supporting blocks (29), the lead screw (30) is connected with a motor, the motor is connected with a controller, a screw nut (31) is arranged on the lead screw (30), and a connecting rod (32) is arranged between the screw nut (31) and the interception plate (27).
3. The bone marrow aspiration biopsy device of claim 2, wherein: cut off board (21) including bottom installation piece (33) and cut off end (34) of setting on bottom installation piece (33), be equipped with shifting chute (35) on bottom installation piece (33), be equipped with second spring (36) in shifting chute (35), the one end that shifting chute (35) were kept away from in second spring (36) is connected with cut off end (34).
4. A bone marrow aspiration biopsy device according to claim 1 or 2, characterized in that: be equipped with constant head tank (37) on the lateral wall of first syringe portion (2), cut off board (21) and can stretch into in constant head tank (37), be equipped with in constant head tank (37) and push up tight board (38), push up tight board (38) length slightly is less than the length of constant head tank (37), be equipped with between the one end of cutting off board (21) and constant head tank (37) of keeping away from of tight board (38) and promote spring (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811528513.4A CN109567878B (en) | 2018-12-13 | 2018-12-13 | Marrow aspiration biopsy device |
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| CN109567878B true CN109567878B (en) | 2021-06-15 |
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| CN112294372B (en) * | 2019-11-28 | 2022-11-08 | 欧阳登洁 | surgical biopsy scalpel |
| CN111956270B (en) * | 2020-08-28 | 2022-10-21 | 南京德文医学科技有限公司 | Biopsy needle and using method thereof |
| CN113017720B (en) * | 2021-03-15 | 2022-11-11 | 黄思琴 | Physical therapeutic instrument for bleeding |
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| CN201213810Y (en) * | 2008-06-24 | 2009-04-01 | 王海燕 | Lung biopsy puncture needle |
| CN102462871A (en) * | 2010-11-18 | 2012-05-23 | 刘大志 | Device and method for establishing bone marrow liquid passage |
| CN205094628U (en) * | 2015-11-08 | 2016-03-23 | 曾居华 | Operating room hydraulic pressure lift foot bench |
| HK1210569A2 (en) * | 2015-12-17 | 2016-04-22 | 太津治有限公司 | Surgical device |
| CN205626391U (en) * | 2016-04-12 | 2016-10-12 | 张家薇 | Electric lift formula surgery operation table |
| CN206526120U (en) * | 2016-08-30 | 2017-09-29 | 王淼 | A kind of surgical console |
| CN207532426U (en) * | 2017-04-04 | 2018-06-26 | 刘艳 | Lumbar puncture needle |
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