CN219645837U - Sleeve suitable for intra-osseous injection - Google Patents
Sleeve suitable for intra-osseous injection Download PDFInfo
- Publication number
- CN219645837U CN219645837U CN202320681594.1U CN202320681594U CN219645837U CN 219645837 U CN219645837 U CN 219645837U CN 202320681594 U CN202320681594 U CN 202320681594U CN 219645837 U CN219645837 U CN 219645837U
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- Prior art keywords
- needle tube
- inner core
- section
- intra
- needle
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Links
- 238000002347 injection Methods 0.000 title claims abstract description 26
- 239000007924 injection Substances 0.000 title claims abstract description 26
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 22
- 239000003814 drug Substances 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 13
- 230000035515 penetration Effects 0.000 abstract description 12
- 208000010392 Bone Fractures Diseases 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 208000006670 Multiple fractures Diseases 0.000 abstract description 3
- 238000001802 infusion Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a cannula suitable for intraosseous injection, which comprises a cannula body, wherein the cannula body comprises a needle tube and an inner core, the inner core is arranged in the needle tube and is used for blocking a needle tube hole of the needle tube, the inner core is detachably connected with the needle tube, and the inner core is non-rotatably connected with the needle tube; the sleeve body is also provided with an external connecting part which is used for being detachably connected with the external connecting piece; the outer connecting piece is a handle or an electric drill; the one end that the external connection portion was kept away from to the inner core is provided with the piston, the needle tubing includes needle tubing section and first linkage segment, the inner core includes inner core section and second linkage segment. The utility model adopts a single tool consisting of the needle tube and the inner core to complete bone penetration and intra-bone injection, thereby not only avoiding broken bones from blocking the needle tube during bone penetration, but also realizing the completion of intra-bone liquid medicine injection without removing the needle tube after bone penetration, having simple structure, convenient and reliable operation and high speed, and greatly improving the efficiency and effect of intra-bone liquid medicine injection.
Description
Technical Field
The utility model relates to the technical field of medical infusion apparatuses, in particular to a sleeve suitable for intraosseous injection.
Background
In the existing intraosseous infusion technology, firstly, holes are drilled at positions needing infusion through a Kirschner wire, the Kirschner wire is pulled out after the holes are drilled, and then an injector is inserted into the drilled holes to inject liquid medicine; however, as the bone perforation and the intraosseous injection of the liquid medicine are completed by two different tools, the operation of the process is complicated, and the liquid medicine is inconvenient to be rapidly injected into the bone.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the sleep posture correction device for the flat head syndrome, which adopts a single tool consisting of the needle tube and the inner core to complete bone penetration and intra-osseous injection, so that broken bones are avoided to block the needle tube during bone penetration, intra-osseous liquid injection is completed under the condition that the needle tube is not pulled out after bone penetration, the structure is simple, the operation is convenient, reliable and quick, and the efficiency and effect of intra-osseous liquid injection are greatly improved.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
the sleeve is characterized in that the sleeve body comprises a needle tube and an inner core, the inner core is arranged in the needle tube and used for blocking a needle tube hole of the needle tube, the inner core is detachably connected with the needle tube, and the inner core is non-rotatably connected with the needle tube;
the sleeve body is also provided with an external connecting part which is used for being detachably connected with the external connecting piece; the outer connecting piece is a handle or an electric drill; and a piston is arranged at one end of the inner core, which is far away from the outer connecting part.
Preferably, the needle tube comprises a needle tube section and a first connecting section, and the needle tube section and the first connecting section are of an integrated structure; the inner core comprises an inner core section and a second connecting section, and the inner core section and the second connecting section are of an integrated structure;
the inner core section is in clearance fit with the needle tube section, and the first connecting section and the second connecting section form the outer connecting part.
Preferably, a first mounting hole is formed in the first connecting section, and the first mounting hole is communicated with a needle tube hole of the needle tube; a second mounting hole is formed in the second connecting section; the second connecting section is arranged in the first mounting hole and is detachably connected with the outer connecting piece through the second mounting hole.
Preferably, the first mounting hole and the second mounting hole are both of an inner polygonal hole structure, and the outer contour of the second connecting section is correspondingly arranged with the first mounting hole.
Preferably, a rubber sleeve is arranged in the second mounting hole.
Preferably, the needle tube is a hollow steel needle, and the inner core is a Kirschner wire.
Preferably, the length of the needle tube segment is equal to or greater than the length of the inner core segment.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model adopts a single tool consisting of the needle tube and the inner core to complete bone penetration and intra-bone injection, thereby not only avoiding broken bones from blocking the needle tube during bone penetration, but also realizing the completion of intra-bone liquid medicine injection without removing the needle tube after bone penetration, having simple structure, convenient and reliable operation and high speed, and greatly improving the efficiency and effect of intra-bone liquid medicine injection.
Drawings
FIG. 1 is an exploded view of a three-dimensional structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a schematic view of the cross-sectional structure A-A in FIG. 2;
FIG. 4 is a schematic view of the cross-sectional structure B-B in FIG. 2;
wherein: the cannula body 1, the needle cannula 2, the inner core 3, the outer connecting piece 4, the piston 5, the outer connecting part 11, the needle tube section 21, the first connecting section 22, the inner core section 31, the second connecting section 32, the first mounting hole 221 and the second mounting hole 321.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The utility model will be further described with reference to the accompanying drawings and detailed description below:
1-4, a cannula suitable for intraosseous injection comprises a cannula body 1, wherein the cannula body 1 comprises a needle tube 2 and an inner core 3, the inner core 3 is arranged in the needle tube 2 and is used for blocking a needle tube hole of the needle tube 2, the inner core 3 is detachably connected with the needle tube 2, and the inner core 3 and the needle tube 2 are in non-rotatable connection;
the sleeve body 1 is also provided with an outer connecting part 11, and the outer connecting part 11 is used for being detachably connected with the outer connecting piece 4; the outer connecting piece 4 is a handle or an electric drill; the end of the inner core 3 remote from the outer connection 11 is provided with a piston 5.
In this embodiment, the outer connector 4 is a handle or a drill; the inner core 3 which can be pulled out and detached and can not rotate mutually is arranged in the needle tube 2, and the needle tube hole of the needle tube 2 is plugged through the inner core 3; when in use, the inner core 3 is firstly arranged in the needle tube 2, and then an electric drill is arranged on the outer connecting part 11, so that the injection ends of the rotating needle tube 2 and the whole inner core 3 act on the position where the bone needs to be penetrated, thereby realizing bone penetration; after the bone penetrating is finished, the electric drill is disassembled, the handle is assembled, the inner core 3 is pulled out through the handle, then the medicine is added into the needle tube 2, the inner core 3 is inserted back, and the inner core 3 is pushed by the handle, so that the injection of the bone liquid medicine is realized.
The structure adopts a single tool consisting of the needle tube 2 and the inner core 3 to complete the bone penetration and the intra-bone injection of the liquid medicine, not only avoids the broken bone from blocking the needle tube 2 when the bone is penetrated, but also completes the intra-bone injection of the liquid medicine under the condition that the needle tube 2 is not pulled out after the bone penetration is realized, has simple structure, is convenient and reliable to operate and quick, and greatly improves the efficiency and the effect of the intra-bone injection of the liquid medicine.
Further, as shown in fig. 3 and 4, the needle tube 2 includes a needle tube section 21 and a first connecting section 22, and the needle tube section 21 and the first connecting section 22 are integrally formed; the inner core 3 comprises an inner core section 31 and a second connecting section 32, wherein the inner core section 31 and the second connecting section 32 are of an integral structure;
the inner core segment 31 is in clearance fit with the needle tube segment 21, and the first connecting segment 22 and the second connecting segment 32 form the outer connecting portion 11.
In this embodiment, when the inner core 3 is disposed in the needle tube 2, the inner core section 31 is disposed in the needle tube section 21, and the second connecting section 32 is disposed in the first connecting section 22, and because the needle tube section 21 and the first connecting section 22 are integrally structured, the inner core section 31 and the first connecting section 22 are integrally structured, so that the inner core 3 and the needle tube 2 cooperate to achieve the overall strength of the sleeve body 1, and the reliability of use is greatly improved.
Further, as shown in fig. 3 and 4, a first mounting hole 221 is formed in the first connecting section 22, and the first mounting hole 221 is communicated with a needle hole of the needle tube 2; a second mounting hole 321 is formed in the second connecting section 32; the second connecting section 32 is disposed in the first mounting hole 221, and the second connecting section 32 is detachably connected with the outer connecting member 4 through the second mounting hole 321.
Further, the first mounting hole 221 and the second mounting hole 321 are both of an inner polygonal hole structure, and the outer contour of the second connecting section 32 is disposed corresponding to the first mounting hole 221.
In this embodiment, the first mounting hole 221 and the second mounting hole 321 are designed to have an inner polygonal hole structure, so that the second connecting section 32 is non-rotatably in clearance fit with the first connecting section 22, and the outer connecting member 4 is non-rotatably connected with the second connecting section 32, so as to realize interlocking when the electric drill is connected with a bone penetrating tool.
Further, a rubber sleeve (not shown in the drawings) is disposed in the second mounting hole 321.
In this embodiment, the above structure improves the connection strength of the connection end of the external connection member 4 and the second mounting hole 321, effectively preventing the external connection member 4 from being separated from the sleeve body 1 when rotating.
Further, the needle tube 2 is a hollow steel needle, and the inner core 3 is a Kirschner wire.
In the embodiment, the Kirschner wire is a solid steel wire, the solid steel wire is in clearance fit with the hollow steel wire, and the piston 5 is arranged at the end part of the solid steel wire, so that the medicine is injected into the bone and the hollow steel wire is prevented from being blocked by bone fragments when the bone is penetrated, and the practicability and the reliability are greatly improved.
Further, the length of the needle tube segment 21 is equal to or greater than the length of the inner core segment 31.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.
Claims (7)
1. The sleeve is characterized in that the sleeve body comprises a needle tube and an inner core, the inner core is arranged in the needle tube and used for blocking a needle tube hole of the needle tube, the inner core is detachably connected with the needle tube, and the inner core is non-rotatably connected with the needle tube;
the sleeve body is also provided with an external connecting part which is used for being detachably connected with the external connecting piece; the outer connecting piece is a handle or an electric drill; and a piston is arranged at one end of the inner core, which is far away from the outer connecting part.
2. A cannula suitable for intra-osseous injection according to claim 1, characterized in that the needle cannula comprises a needle tube section and a first connecting section, which are of unitary construction; the inner core comprises an inner core section and a second connecting section, and the inner core section and the second connecting section are of an integrated structure;
the inner core section is in clearance fit with the needle tube section, and the first connecting section and the second connecting section form the outer connecting part.
3. The cannula for intraosseous injection according to claim 2, wherein a first mounting hole is formed in the first connecting section, and the first mounting hole is communicated with a needle hole of a needle tube; a second mounting hole is formed in the second connecting section; the second connecting section is arranged in the first mounting hole and is detachably connected with the outer connecting piece through the second mounting hole.
4. A cannula for intra-osseous injection according to claim 3, wherein the first and second mounting holes are of an inner polygonal hole structure, and the outer contour of the second connecting section is arranged corresponding to the first mounting hole.
5. The cannula for intraosseous injection according to claim 4, wherein a rubber sleeve is provided in the second mounting hole.
6. A cannula suitable for intra-osseous injection according to claim 1, wherein the needle tube is a hollow steel needle and the inner core is a k-wire.
7. A cannula suitable for intra-osseous injection according to claim 2, wherein the length of the needle tube segment is equal to or larger than the length of the inner core segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320681594.1U CN219645837U (en) | 2023-03-31 | 2023-03-31 | Sleeve suitable for intra-osseous injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320681594.1U CN219645837U (en) | 2023-03-31 | 2023-03-31 | Sleeve suitable for intra-osseous injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219645837U true CN219645837U (en) | 2023-09-08 |
Family
ID=87875981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320681594.1U Active CN219645837U (en) | 2023-03-31 | 2023-03-31 | Sleeve suitable for intra-osseous injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219645837U (en) |
-
2023
- 2023-03-31 CN CN202320681594.1U patent/CN219645837U/en active Active
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| GR01 | Patent grant |