CN215534632U - Bone marrow tissue collecting needle - Google Patents
Bone marrow tissue collecting needle Download PDFInfo
- Publication number
- CN215534632U CN215534632U CN202121912075.9U CN202121912075U CN215534632U CN 215534632 U CN215534632 U CN 215534632U CN 202121912075 U CN202121912075 U CN 202121912075U CN 215534632 U CN215534632 U CN 215534632U
- Authority
- CN
- China
- Prior art keywords
- needle
- outer needle
- bone marrow
- sleeve
- marrow tissue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000001185 bone marrow Anatomy 0.000 title claims abstract description 34
- 210000001519 tissue Anatomy 0.000 title claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000003306 harvesting Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002798 bone marrow cell Anatomy 0.000 description 1
- 238000010322 bone marrow transplantation Methods 0.000 description 1
- 238000002659 cell therapy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009168 stem cell therapy Methods 0.000 description 1
- 238000009580 stem-cell therapy Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of medical instruments, and relates to a bone marrow tissue collecting needle which comprises a solid inner needle core and a tubular outer needle sleeve, wherein the inner needle core is inserted into the outer needle sleeve and is detachably connected with the outer needle sleeve, the tip end of the inner needle core can extend out of the outer needle sleeve, the inner side of the front end of the outer needle sleeve is provided with a barb part, and the tip end of the inner needle core can be tightly matched with the barb part after extending out of the outer needle sleeve. The bone marrow tissue collecting needle provided by the utility model has the advantages that the barb part is arranged at the front end of the outer needle sleeve, so that bone marrow tissue entering the outer needle sleeve is limited by the barb part and is not easy to slip off in the extraction process after collection, the single collection amount of the bone marrow tissue collecting needle is effectively ensured, the pain of multiple collection of a patient is relieved, the medical cost is saved, and the workload of an operator is reduced.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and particularly relates to a bone marrow tissue collecting needle.
Background
Bone marrow harvesting is a basic technology required for bone marrow transplantation, bone marrow cell therapy and bone marrow stem cell therapy, and the site of harvesting bone marrow and the type of bone marrow are required to be different depending on the therapy. Traditional marrow puncture is to be connected the pjncture needle with ordinary syringe and then punctures, mainly is applied to the extraction of marrow liquid, and to the marrow tissue, it has certain quality, and current pjncture needle is extracting the in-process after gathering, can't make it effectual stop in the cylinder, leads to the single volume of gathering not enough, can't gather even, causes to need to extract the marrow many times, has increased patient's misery, medical cost and operator work load.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to a bone marrow tissue collecting needle, which aims to solve the problems of bone marrow tissue slipping and insufficient collecting amount in a single collecting process.
In order to achieve the above objects, the present invention provides a bone marrow tissue collecting needle, which comprises a solid inner needle core and a tubular outer needle sheath, wherein the inner needle core is inserted into the outer needle sheath and detachably connected thereto, and a tip end thereof can extend out from the outer needle sheath, a barb portion is arranged on the inner side of the front end of the outer needle sheath, and the tip end of the inner needle core can be tightly fitted with the barb portion after extending out of the outer needle sheath.
Further, the outer needle hub has a cutting edge at its tip.
Furthermore, the outer needle sleeve is also sleeved with a limiting sleeve for limiting the insertion depth of the outer needle sleeve, and the limiting sleeve is provided with a screw which can be locked on the outer needle sleeve.
Further, the outer needle handle arranged on the outer needle sleeve and the inner needle handle arranged on the inner needle core are respectively and oppositely provided with a pin hole and a bolt on the mutually corresponding surfaces.
Furthermore, a synchronizing mechanism which is used for achieving limiting support and driving the inner needle core to rotate together after retracting relative to the outer needle sleeve and is arranged between the outer needle handle and the inner needle handle is arranged, the synchronizing mechanism is composed of a limiting turning plate and a jack which are arranged correspondingly to each other, the jack is arranged on the outer needle handle, the limiting turning plate is arranged on the inner needle handle through a hinge, and the two limiting turning plates are arranged and are respectively positioned on two sides of the inner needle handle.
Further, the hinge is a hinge.
The utility model has the beneficial effects that: the bone marrow tissue collecting needle provided by the utility model has the advantages that the barb part is arranged at the front end of the outer needle sleeve, so that bone marrow tissue entering the outer needle sleeve is limited by the barb part and is not easy to slip off in the extraction process after collection, the single collection amount of the bone marrow tissue collecting needle is effectively ensured, the pain of multiple collection of a patient is relieved, the medical cost is saved, and the workload of an operator is reduced.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a side view of the needle for collecting bone marrow tissue;
FIG. 2 is a schematic sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the core needle of FIG. 2 shown in a retracted state relative to the outer sheath;
reference numerals: the novel needle comprises an inner needle core 1, an outer needle sleeve 2, a barb part 3, a limiting sleeve 4, an outer needle handle 5, a jack 6, an inner needle handle 7, a hinge 8, a limiting turning plate 9, a bolt 10 and a pin hole 11.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1-3, the bone marrow tissue collecting needle of the present embodiment comprises a solid inner needle core 1 and a tubular outer needle cover 2, wherein the inner needle core 1 is inserted into the outer needle cover 2 and detachably connected thereto, and the tip thereof can extend out from the outer needle cover 2, the inner side of the front end of the outer needle cover 2 is provided with a barb portion 3, and the tip of the inner needle core 1 can be tightly fitted with the barb portion 3 after extending out of the outer needle cover 2, so that bone marrow tissue entering the outer needle cover is restricted by the barb portion and is not easy to slip off in the process of pulling out after collection, thereby effectively ensuring the single collection amount of the bone marrow tissue collecting needle, alleviating the pain of multiple collection of patients, saving medical cost and reducing the workload of operators.
The barb 3 formed on the inner side of the distal end of the outer hub 2 in this embodiment may be formed by machining or molding, or may be formed by welding. Meanwhile, the outer hub 2 has a cutting edge at its top end to facilitate the outer hub to follow the inner core for puncturing.
The outer needle sleeve 2 in this embodiment is further sleeved with a limiting sleeve 4 which can be used for limiting the insertion depth of the outer needle sleeve 2 so as to facilitate visual observation of an operator, and meanwhile, the limiting sleeve 4 is provided with a screw (not marked) which can be locked on the outer needle sleeve 2, and the position of the limiting sleeve 4 relative to the outer needle sleeve 2 is adjusted through the screw so as to adapt to different patient requirements.
In this embodiment, the pin hole 11 and the plug pin 10 are respectively and oppositely arranged on the mutually corresponding surfaces between the outer needle handle 5 arranged on the outer needle sleeve 2 and the inner needle handle 7 arranged on the inner needle core 1. So that when the inner needle core 1 is inserted into the outer needle sleeve 2 and intermittently extends out of the outer needle sleeve 2, and in the process of puncture operation, the inner needle core 1 and the outer needle sleeve 2 can rotate together, so that the inner needle core 1 drives the outer needle sleeve 2 to enter bone marrow, and a good puncture effect is obtained.
Be equipped with between outer needle handle 5 in this embodiment and the interior needle handle 7 and be used for playing spacing support and drive the two synchronous mechanism that rotates jointly after the needle core 1 contracts for outer needle cover 2, this synchronous mechanism is turned over the board 9, jack 6 by the spacing board that turns over that corresponds the setting each other and is constituteed, jack 6 sets up on outer needle handle 5, spacing board 9 that turns over sets up on interior needle handle 7 through hinge 8, and spacing board 9 that turns over sets up to two, be located interior needle handle 7 both sides respectively, hinge 8 adopts the hinge. Therefore, after the inner needle core 1 and the outer needle sleeve 2 enter the bone marrow, when the outer needle sleeve 2 is required to collect the bone marrow, the inner needle core 1 can retract, limit and synchronously rotate with the outer needle sleeve 2 by utilizing the synchronous mechanism.
The following describes in detail the manner of use of the bone marrow tissue puncture needle: firstly, the inner needle core 1 is inserted into the outer needle sleeve 2, the tip end of the inner needle core extends out of the outer needle sleeve 2, and the tip end of the inner needle core is tightly matched with a barb part 3 arranged on the outer needle sleeve 2; then, the inner needle handle 7 and the outer needle handle 5 which are mutually limited by the inner needle core 1 and the outer needle sleeve 2 are rotated to drive the outer needle sleeve 2 to enter the bone marrow of the patient together by utilizing the sharp end of the inner needle core 1; then, the inner needle core 1 is pulled backwards, and the limiting turning plates 9 at the two sides of the inner needle core are released to be inserted into the insertion hole 6 of the outer needle sleeve 2, so that the limiting and synchronous rotating effects between the inner needle core and the outer needle sleeve are formed; then, the operator continues to rotate the inner needle handle 7 and the outer needle handle 5 which are mutually restricted by the inner needle core 1 and the outer needle sleeve 2, so that the outer needle sleeve 2 is further penetrated, and the bone marrow is led into the outer needle sleeve 2; finally, the bone marrow tissue in the outer needle sleeve 2 is smoothly collected out of the body by the rotary extraction mode and the assistance of the barb part 3 of the outer needle sleeve 2, so that the effective amount collection work of the single bone marrow tissue is realized.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (6)
1. Bone marrow tissue sampling needle, including a solid inner stylet (1) and a tubular outer needle cover (2), the inner stylet is inserted into the outer needle cover and detachably connected thereto, and the tip can extend from the outer needle cover, characterized in that, the inner side of the front end of the outer needle cover is provided with a barb part (3), the tip of the inner stylet can be closely matched with the barb part after extending out of the outer needle cover.
2. The bone marrow tissue harvesting needle as claimed in claim 1, wherein the outer needle sheath has a cutting edge at a tip thereof.
3. The bone marrow tissue collecting needle as claimed in claim 1, wherein a limiting sleeve (4) is further sleeved on the outer needle sleeve for limiting the insertion depth of the outer needle sleeve, and a screw capable of being locked on the outer needle sleeve is arranged on the limiting sleeve.
4. The bone marrow tissue collecting needle according to claim 1, characterized in that a pin hole (11) and a plug pin (10) are respectively oppositely arranged on the mutually corresponding surfaces between the outer needle handle arranged on the outer needle sleeve and the inner needle handle arranged on the inner needle core.
5. The bone marrow tissue collecting needle as claimed in claim 4, wherein a synchronizing mechanism for spacing and supporting the inner needle core after retracting relative to the outer needle sheath and driving the inner needle core and the outer needle sheath to rotate together is arranged between the outer needle handle and the inner needle handle, the synchronizing mechanism comprises a spacing turning plate (9) and a jack (6) which are correspondingly arranged, the jack is arranged on the outer needle handle, the spacing turning plate is arranged on the inner needle handle through a hinge (8), and the two spacing turning plates are respectively positioned at two sides of the inner needle handle.
6. The needle according to claim 5, wherein the hinge is a hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121912075.9U CN215534632U (en) | 2021-08-16 | 2021-08-16 | Bone marrow tissue collecting needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121912075.9U CN215534632U (en) | 2021-08-16 | 2021-08-16 | Bone marrow tissue collecting needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215534632U true CN215534632U (en) | 2022-01-18 |
Family
ID=79835963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121912075.9U Expired - Fee Related CN215534632U (en) | 2021-08-16 | 2021-08-16 | Bone marrow tissue collecting needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215534632U (en) |
-
2021
- 2021-08-16 CN CN202121912075.9U patent/CN215534632U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220118 |