CN211325446U - Sternal puncture needle base assembly and sternal puncture needle - Google Patents
Sternal puncture needle base assembly and sternal puncture needle Download PDFInfo
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- CN211325446U CN211325446U CN201922114913.7U CN201922114913U CN211325446U CN 211325446 U CN211325446 U CN 211325446U CN 201922114913 U CN201922114913 U CN 201922114913U CN 211325446 U CN211325446 U CN 211325446U
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- base
- needle
- assembly
- connecting sleeve
- puncture needle
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Abstract
The utility model discloses a sternum puncture needle base component and sternum puncture needle, the base component comprises an auxiliary needle component, a connecting sleeve and a base, two ends of the connecting sleeve are respectively matched with the auxiliary needle component and the base in a splicing way in a sliding way, a first guide post is arranged on the sliding matching surface of the connecting sleeve and the auxiliary needle component, a first axial chute and a first inclined chute which are matched with the first guide post are arranged on the sliding matching surface of the auxiliary needle component and the connecting sleeve, the first inclined chute is inclined downwards from one end communicated with the first axial chute, and the first axial chute is communicated with the first inclined chute; when the auxiliary needle assembly moves downwards relative to the base, the connecting sleeve rotates relative to the auxiliary needle assembly and the base to enable the first guide column to slide into the first axial chute from the first inclined chute, and the connecting sleeve and the mounting seat and the base of the auxiliary needle assembly are matched with each other to enclose a closed cavity for accommodating the auxiliary needle assembly and the puncture part of the main needle assembly, so that the puncture parts of the main needle assembly and the auxiliary needle assembly are prevented from being damaged and bacterial contamination.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a breastbone puncture needle base assembly and a breastbone puncture needle.
Background
Split type sternum pjncture needle generally comprises trigger device and the base subassembly of complex with it, trigger device can reuse, use trigger device and base subassembly combination back when the puncture, because main needle and the auxiliary needle of puncture usefulness all are located the base subassembly, and at the puncture in-process, main needle and auxiliary needle all need carry out rectilinear movement for other parts, consequently avoid main needle and auxiliary needle to expose outside when guaranteeing the base subassembly function, become the important technical problem that technical staff in the field had a urgent need to solve.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a sternum puncture needle base assembly, which provides a sealed environment for the puncture sites of the primary needle and the secondary needle, and protects the puncture sites of the primary needle and the secondary needle to avoid bacterial contamination and injury.
Another object of the utility model is to provide a sternum puncture needle comprising the above sternum puncture needle base assembly.
In order to achieve the above object, the utility model provides a following technical scheme:
a sternal puncture needle base assembly comprises an auxiliary needle assembly, a connecting sleeve and a base, wherein two ends of the connecting sleeve are respectively in sliding fit with the auxiliary needle assembly and the base in an inserting manner, a first guide column is arranged on a sliding fit surface of the connecting sleeve matched with the auxiliary needle assembly, a first axial sliding groove and a first inclined sliding groove which are matched with the first guide column are arranged on a sliding fit surface of the auxiliary needle assembly matched with the connecting sleeve, and the first axial sliding groove is communicated with the first inclined sliding groove;
when the secondary needle assembly descends relative to the base, the connecting sleeve rotates relative to the secondary needle assembly and the base so that the first guide column slides into the first axial chute from the first inclined chute.
Preferably, a second guide column is arranged on a sliding fit surface of the connecting sleeve matched with the base, a second axial sliding chute and a second inclined sliding chute matched with the second guide column are arranged on a sliding fit surface of the base matched with the connecting sleeve, and the second axial sliding chute is communicated with the second inclined sliding chute;
when the secondary needle assembly descends relative to the base, the connecting sleeve rotates relative to the secondary needle assembly and the base so that the second guide column slides into the second axial sliding groove from the second inclined sliding groove.
Preferably, the first guide column and the second guide column are respectively provided with at least two guide columns, and each guide column is uniformly distributed along the circumferential direction of the connecting sleeve.
Preferably, the sub-needle assembly and the base are respectively provided with a slot matched with the connecting sleeve, and the two slots are matched with each other to accommodate part or all of the connecting sleeve so as to hide the connecting sleeve in the sternum puncture needle base assembly when the sub-needle assembly moves downwards.
Preferably, the base is provided with a positioning arc surface and a main needle through hole for a sternum puncture needle to pass through, the positioning arc surface is matched with the sternum notch, the center of the main needle through hole is positioned on the extension line of the perpendicular line of the tangent line of the lowest point of the positioning arc surface, and the distance between the lowest point of the positioning arc surface and the center of the main needle through hole is equal to the distance between the sternum notch and the thickest point of the sternum.
Preferably, the base bilateral symmetry is provided with the location cambered surface, the main needle via hole set up in two between the location cambered surface.
Preferably, still include the main needle subassembly, the main needle subassembly passes the vice needle subassembly stretches into in the main needle via hole on the base, just the main needle subassembly passes through the fixing base to be fixed on the vice needle subassembly, the fixing base with between the vice needle subassembly and the fixing base with be sealed cooperation between the main needle subassembly.
Preferably, a clamping groove used for clamping and matching with the infusion hose is arranged on the base.
Preferably, the base is provided with an adsorption piece for adsorbing the base to the sternum skin.
A sternum puncture needle comprises a firing component and a base component matched with the firing component, wherein the base component is the sternum puncture needle base component as described above.
In order to achieve the above object, the utility model provides a sternal puncture needle base component, which comprises an auxiliary needle component, a connecting sleeve and a base, wherein, the two ends of the connecting sleeve are respectively matched with the auxiliary needle component and the base in a splicing way in a sliding way, the sliding comprises axial and circumferential sliding, a first guide post is arranged on the sliding matching surface of the connecting sleeve and the auxiliary needle component, a first axial chute and a first inclined chute which are matched with the first guide post are arranged on the sliding matching surface of the auxiliary needle component and the connecting sleeve, the first inclined chute inclines downwards from one end communicated with the first axial chute, and the first axial chute is communicated with the first inclined chute; when the auxiliary needle assembly descends relative to the base, the connecting sleeve rotates relative to the auxiliary needle assembly and the base so that the first guide column slides into the first axial chute from the first inclined chute; the auxiliary needle assembly of the base assembly is connected to the base through the connecting sleeve, in an initial state, if the base is stored and transported, the first guide column is located in the first inclined chute, the connecting sleeve is matched with the mounting seat and the base of the auxiliary needle assembly to form a closed cavity for accommodating the auxiliary needle assembly and the puncture position of the main needle assembly, the puncture positions of the main needle assembly and the auxiliary needle assembly are prevented from being damaged in storage and transportation, bacterial pollution is avoided, when the base is used, the auxiliary needle assembly moves downwards, the inner wall of the first inclined chute is in contact fit with the first guide column, the connecting sleeve rotates along the trend, the first guide column enters the first axial chute, the puncture action is completed, the matching structure between the auxiliary needle assembly and the connecting sleeve guarantees the puncture function of the auxiliary needle assembly, the auxiliary needle assembly is prevented from being separated from the connecting sleeve, and storage and transportation are facilitated.
The utility model also provides a sternum puncture needle, including the percussion subassembly and with percussion subassembly matched with base subassembly, base subassembly is as above arbitrary sternum puncture needle base subassembly, because sternum puncture needle base subassembly has above-mentioned beneficial effect, then adopt this sternum puncture needle base subassembly's sternum puncture needle also should have the same technological effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a sternal puncture needle base assembly provided in an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a sternal puncture needle base assembly provided in an embodiment of the present invention;
fig. 3 is a schematic structural view of an auxiliary needle assembly in a sternum puncture needle base assembly provided by the embodiment of the present invention;
fig. 4 is a schematic structural view of a connecting sleeve in a sternum puncture needle base component provided by the embodiment of the invention;
fig. 5 is a schematic view of a matching structure between a connection sleeve and a base in a sternum puncture needle base assembly provided by the embodiment of the present invention.
In the figure:
1 is a sub-needle assembly; 110 is an auxiliary needle seat; 120 is a secondary needle; 111 is a first axial chute; 112 is a first inclined chute; 2 is a fixed seat; 3 is a main needle component; 310 is a main needle; 320 is a transfusion hose; 4 is a connecting sleeve; 410 is a first guide post; 420 is a second guide post; 5 is a base; 510 is a positioning arc surface; 520 is a secondary pin through hole; 530 is a main pin via hole; 6 is an adsorption piece; and 7 is a clamping groove.
Detailed Description
One of the cores of the utility model is to provide a sternum puncture needle base component, the structural design of which can provide an airtight environment for the puncture parts of the main needle and the auxiliary needle, and the puncture parts of the main needle and the auxiliary needle are protected to avoid bacterial contamination and damage.
The other core of the utility model is to provide a sternum puncture needle comprising the above sternum puncture needle base component.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, fig. 1 is a front view of a sternum puncture needle base component provided in an embodiment of the present invention, fig. 2 is a cross-sectional view of the sternum puncture needle base component provided in an embodiment of the present invention, fig. 3 is a schematic structural view of an auxiliary needle component in the sternum puncture needle base component provided in an embodiment of the present invention, and fig. 4 is a schematic structural view of a connection sleeve in the sternum puncture needle base component provided in an embodiment of the present invention.
The embodiment of the utility model provides a sternum puncture needle base 5 subassembly, including vice needle subassembly 1, adapter sleeve 4 and base 5.
The two ends of the connecting sleeve 4 are respectively in plug-in fit with the sub-needle assembly 1 and the base 5 in a sliding manner, the sliding manner comprises axial and circumferential sliding, a first guide column 410 is arranged on a sliding fit surface where the connecting sleeve 4 is matched with the sub-needle assembly 1, a first axial sliding groove 111 and a first inclined sliding groove 112 which are matched with the first guide column 410 are arranged on a sliding fit surface where the sub-needle assembly 1 is matched with the connecting sleeve 4, the sub-needle assembly 1 comprises a sub-needle base 110 and a sub-needle 120, the sub-needle 120 is arranged on the sub-needle base 110, the first axial sliding groove 111 and the first inclined sliding groove 112 are both arranged on the sub-needle base 110, the first inclined sliding groove 112 is inclined downwards from one end communicated with the first axial sliding groove 111, and the first axial sliding groove 111 is communicated with the first inclined; when the sub-needle assembly 1 descends relative to the base 5, the connecting sleeve 4 rotates relative to the sub-needle assembly 1 and the base 5 to make the first guide column 410 slide into the first axial sliding groove 111 from the first inclined sliding groove 112.
Compared with the prior art, the sub-needle assembly 1 of the sternum puncture needle base 5 assembly provided by the utility model is connected to the base 5 through the connecting sleeve 4, in the initial state, such as during storage and transportation, the first guide post 410 is located in the first inclined chute 112, the connecting sleeve 4, the mounting seat of the sub-needle assembly 1 and the base 5 are mutually matched to form a closed cavity for accommodating the puncture parts of the sub-needle assembly 1 and the main needle assembly 3, so as to avoid the damage of the puncture parts of the main needle assembly 3 and the sub-needle assembly 1 during storage and transportation and bacterial contamination, when in use, the sub-needle assembly 1 descends, the inner wall of the first inclined chute 112 is in contact fit with the first guide post 410, the connecting sleeve 4 rotates along with the trend, so that the first guide post 410 enters the first axial chute 111 to complete the puncture action, the matching structure between the sub-needle assembly 1 and the connecting sleeve 4 ensures the puncture function of the sub-needle assembly 1, the separation of the auxiliary needle assembly 1 from the connecting sleeve 4 is avoided, and the storage and the transportation are convenient.
Preferably, as shown in fig. 5, a second guide post 420 is disposed on a sliding fit surface where the connecting sleeve 4 is fitted with the base 5, a second axial sliding slot and a second inclined sliding slot that are fitted with the second guide post 420 are disposed on a sliding fit surface where the base 5 is fitted with the connecting sleeve 4, and the second axial sliding slot is communicated with the second inclined sliding slot; when the sub-needle assembly 1 moves downwards relative to the base 5, the connecting sleeve 4 rotates relative to the sub-needle assembly 1 and the base 5 to enable the second guide column 420 to slide into the second axial chute from the second inclined chute, and the connecting sleeve 4, the sub-needle assembly 1 and the base 5 are in an interlocking state by arranging a matching structure between the connecting sleeve 4 and the base 5, so that separation is avoided, and the upper end and the lower end of the connecting sleeve 4 can be simultaneously stressed.
Further optimize above-mentioned technical scheme, first guide post 410 and second guide post 420 are provided with at least two respectively, and each first guide post 410 and each second guide post 420 respectively along the circumference equipartition of adapter sleeve 4, certainly, corresponding with a plurality of first guide post 410, still be provided with a plurality of first axial spout 111 and first oblique spout 112 on the sub-needle subassembly 1, corresponding with a plurality of second guide post 420, still be provided with a plurality of second axial spout and second oblique spout on the base 5, thereby make adapter sleeve 4 evenly atress in circumference.
Preferably, the sub-needle assembly 1 and the base 5 are respectively provided with a slot matched with the connecting sleeve 4, and the two slots are mutually matched to be capable of accommodating part or all of the connecting sleeve 4 so as to hide the connecting sleeve 4 in the sternal puncture needle base 5 assembly when the sub-needle assembly 1 descends.
The base 5 is provided with a positioning cambered surface 510 and a main needle through hole 530 for the main needle component 3 to pass through, the positioning cambered surface 510 is matched with a sternum notch, the center of the main needle through hole 530 is positioned on an extension line of a perpendicular line of a tangent line of the lowest point of the positioning cambered surface 510, and the distance A between the lowest point of the positioning cambered surface 510 and the center of the main needle through hole 530 is equal to the distance between the sternum notch and the thickest point of the sternum.
As shown in fig. 5, the two positioning arcs 510 are symmetrically distributed on two sides of the main needle passing hole 530, so that when a user uses the sternum puncture needle, the user does not need to adjust the position of the sternum puncture needle deliberately, and the use is convenient.
The base 5 is also provided with an auxiliary needle through hole 520 for the auxiliary needle assembly 1 to pass through around the central main needle through hole 530, in order to keep the base 5 sealed, a vulnerable membrane can be arranged in the auxiliary needle through hole 520 and the main needle through hole 530, the vulnerable membrane can be used for connecting the auxiliary needle through hole 520 and the main needle through hole 530, and the vulnerable membrane cannot influence the puncture of the main needle assembly 3 and the auxiliary needle assembly 1.
Further optimize above-mentioned technical scheme, during main needle subassembly 3 passed vice needle subassembly 1 and stretches into main needle via hole 530 on base 5, and main needle subassembly 3 passes through fixing base 2 to be fixed on vice needle subassembly 1, be sealed cooperation between fixing base 2 and vice needle subassembly 1 and between fixing base 2 and the main needle subassembly 3, this fixing base 2 can enough fix main needle subassembly 3, can also play sealed effect.
In the embodiment of the present invention, the main needle assembly 3 includes a main needle 310 and an infusion hose 320 sleeved outside the main needle 310, and after the puncture is completed, the main needle 310, the sub-needle assembly 1 and the connection sleeve 4 are driven by the trigger device to leave the infusion hose 320 and the base 5 for infusion.
Preferably, in order to prevent the infusion hose 320 from moving due to external force during the infusion process, in the embodiment of the present invention, the base 5 is provided with a slot 7 for engaging with the infusion hose 320, and the infusion hose 320 can be engaged with the slot 7 for fixation when in use.
For the convenience of fixing the base 5, an adsorbing member 6 for adsorbing the base 5 to the sternum skin may be disposed on the base 5, specifically, in the embodiment of the present invention, the adsorbing member 6 is a double-sided adhesive tape, when in use, the double-sided adhesive tape is adhered to the surface of the base 5 facing to the sternum skin, and after the base 5 is fixed, the base 5 may be directly adhered to the sternum skin through the double-sided adhesive tape.
Of course, the suction member 6 is not limited to the double-sided adhesive tape, and may also be in the form of a suction cup or a combination of a suction cup and a double-sided adhesive tape, which is not limited herein.
Based on the above sternum puncture needle base 5 component, the embodiment of the present invention further provides a sternum puncture needle, which comprises a trigger component and a base 5 component matched with the trigger component, wherein the base 5 component is the above sternum puncture needle base 5 component, and since the above sternum puncture needle base 5 component has the above technical effects, please refer to the above embodiment for the technical effects of the sternum puncture needle using the above sternum puncture needle base 5 component.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A sternum puncture needle base component is characterized by comprising an auxiliary needle component, a connecting sleeve and a base, wherein two ends of the connecting sleeve are respectively in sliding fit with the auxiliary needle component and the base in an inserting manner, a first guide column is arranged on a sliding fit surface of the connecting sleeve matched with the auxiliary needle component, a first axial sliding groove and a first inclined sliding groove which are matched with the first guide column are arranged on a sliding fit surface of the auxiliary needle component matched with the connecting sleeve, and the first axial sliding groove is communicated with the first inclined sliding groove;
when the secondary needle assembly descends relative to the base, the connecting sleeve rotates relative to the secondary needle assembly and the base so that the first guide column slides into the first axial chute from the first inclined chute.
2. The sternal puncture needle base assembly according to claim 1, wherein a second guide post is arranged on a sliding fit surface of the connecting sleeve, which is fitted with the base, a second axial sliding groove and a second inclined sliding groove, which are fitted with the second guide post, are arranged on a sliding fit surface of the base, which is fitted with the connecting sleeve, and the second axial sliding groove is communicated with the second inclined sliding groove;
when the secondary needle assembly descends relative to the base, the connecting sleeve rotates relative to the secondary needle assembly and the base so that the second guide column slides into the second axial sliding groove from the second inclined sliding groove.
3. The sternal puncture needle base assembly according to claim 2, wherein there are at least two first guide posts and at least two second guide posts, and each first guide post and each second guide post are uniformly distributed along the circumferential direction of the connecting sleeve.
4. The sternal puncture needle base component according to any one of claims 1 to 3, wherein the sub-needle component and the base are respectively provided with a slot which is matched with the connecting sleeve, and the two slots are mutually matched to accommodate part or all of the connecting sleeve so as to hide the connecting sleeve in the sternal puncture needle base component when the sub-needle component descends.
5. The sternal puncture needle base assembly according to any one of claims 1 to 3, wherein the base is provided with a positioning arc surface and a main needle through hole for the sternal puncture needle to pass through, the positioning arc surface is matched with the sternal notch, the center of the main needle through hole is located on the extension line of the perpendicular line of the tangent line of the lowest point of the positioning arc surface, and the distance between the lowest point of the positioning arc surface and the center of the main needle through hole is equal to the distance between the sternal notch and the thickest point of the sternum.
6. The sternal puncture needle base assembly of claim 5, wherein the positioning arc surfaces are symmetrically arranged on both sides of the base, and the main needle passing hole is arranged between the two positioning arc surfaces.
7. The sternal puncture needle base assembly of any one of claims 1 to 3 and 6, further comprising a primary needle assembly, wherein the primary needle assembly passes through the secondary needle assembly and extends into the primary needle through hole on the base, and the primary needle assembly is fixed on the secondary needle assembly through a fixing seat, and the fixing seat and the secondary needle assembly and the fixing seat and the primary needle assembly are in sealing engagement.
8. The sternal puncture needle base assembly according to any one of claims 1 to 3 and 6, wherein the base is provided with a groove for snap-fitting with an infusion hose.
9. The sternal puncture needle base assembly of any one of claims 1 to 3 and 6, wherein the base is provided with an adsorption member for adsorbing the base to the skin of the sternum.
10. A sternal puncture needle comprising a firing assembly and a base assembly cooperating with the firing assembly, wherein the base assembly is the sternal puncture needle base assembly according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114913.7U CN211325446U (en) | 2019-11-28 | 2019-11-28 | Sternal puncture needle base assembly and sternal puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922114913.7U CN211325446U (en) | 2019-11-28 | 2019-11-28 | Sternal puncture needle base assembly and sternal puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211325446U true CN211325446U (en) | 2020-08-25 |
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ID=72100711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922114913.7U Active CN211325446U (en) | 2019-11-28 | 2019-11-28 | Sternal puncture needle base assembly and sternal puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211325446U (en) |
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2019
- 2019-11-28 CN CN201922114913.7U patent/CN211325446U/en active Active
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