CN209316695U - A kind of transfusion needle of stereotactic puncture - Google Patents
A kind of transfusion needle of stereotactic puncture Download PDFInfo
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- CN209316695U CN209316695U CN201821048668.3U CN201821048668U CN209316695U CN 209316695 U CN209316695 U CN 209316695U CN 201821048668 U CN201821048668 U CN 201821048668U CN 209316695 U CN209316695 U CN 209316695U
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- needle stand
- needle
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- core
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Abstract
A kind of transfusion needle of stereotactic puncture, is related to a kind of the field of medical instrument technology, and compared with prior art, due to being provided with the oriented structure being oriented for internal needle stand in puncture direction between interior needle stand and outer needle stand, and oriented structure can limit interior needle stand rotation.In assembly, the direction in the needle point cutting face of needle core is oriented to a fixed-direction of convenient vascular puncture, and the direction in needle point cutting face will not change after assembly.When operating puncture, the direction in needle point cutting face will not change medical staff, ensure that clinic punctures effect, reduce the working strength of medical staff.After the completion of puncture, it will not deflect in needle core fallback procedures.
Description
Technical field
The invention is related to the field of medical instrument technology, and in particular to a kind of transfusion needle of stereotactic puncture.
Background technique
Venous detaining needle is also known as vein sheath needle, it generally comprises inner assembly and outer component, outer component include outer needle stand,
Casing and preceding hose, preceding hose are fixed on the front end of outer needle stand, and the front end of casing is connect with the rear end of outer needle stand, so that
Casing, outer needle stand and preceding hose is obtained to be sequentially communicated.Inner assembly includes needle core, interior needle stand and inner flexible tube, and needle core is the steel needle of hard,
The rear end of needle core is fixedly connected with the front end of interior needle stand, and the front end of inner flexible tube is connect with the rear end of interior needle stand, so that
Inner flexible tube, interior needle stand and needle core are sequentially communicated, and inner flexible tube is through in described sleeve pipe.Under original state, interior needle stand is in outer needle stand
It is interior, it is pierced by before needle core is applied in hose and from the front end of preceding hose.When puncture, medical staff pushes needle core together with preceding hose
It is pierced into blood vessel, after puncturing successfully, medical staff pulls inner flexible tube, allows interior needle stand, inner flexible tube and needle core to retreat, so that needle
Core is detached from the preceding hose.There are two types of modes for hose before needle core is detached from, and are completely withdrawn from and throw aside one is inner assembly, after casing
End connection infusion apparatus is infused.Another kind is that inner assembly is retreated to casing, and soft preceding hose is left to remain in blood vessels, inside
The rear end of hose connects infusion apparatus, and liquid, which successively passes through the preceding hose of the interior needle stand-outer needle stand-of needle core-casing-of inner flexible tube-, to carry out
Infusion.Due to be retained in intravenous preceding hose be it is soft, avoid damage of the needle body to blood vessel, patient can be slight with needle
Activity.Venous detaining needle is suitable for the puncture at multiple positions, and one-time puncture can be continuous or be spaced use in multiple, more days, mitigates
The pain that patient punctures repeatedly, alleviates the workload of nursing staff, clinically it is deep suffered from by shield welcome, while saving big
The medical treatment and nursing manpower and material resources of amount have great medical economics meaning.Certain this remaining needle can also be used as conventional one
Secondary property transfusion needle uses.
One skilled in the art will appreciate that the tip portion of the needle core for venipuncture, which is provided with, cuts for the ease of puncturing
Bevel.Have on direction between the needle point cutting face of needle core and blood vessel for the availability for meeting remaining needle clinical transfusion when puncturing
It is required that the back in i.e. needle point cutting face is close to skin penetrating such as blood vessel.However, the infusion of existing remaining needle or non-indwelling
Needle, needle core can drop back displacement, and needle core be located in interior needle stand be it is rotatable, which results in assembly, needle core
The direction in needle point cutting face is uncertain, and the direction in needle point cutting face is easy to happen change after assembly.Medical staff is grasping
When puncturing, needs the direction in extra care adjustment needle point cutting face to be punctured again, the requirement of clinical puncture can be met.
There is the hidden danger for puncturing and not being able to satisfy clinical requirement in the working strength for increasing medical staff.
Summary of the invention
For the prior art there are above-mentioned technical problem, the utility model, which provides one kind, can be avoided needle core deflection, be convenient for
The transfusion needle of the stereotactic puncture used.
To achieve the above object, the invention provides following technical scheme.
There is provided a kind of transfusion needle of stereotactic puncture, including inner assembly and outer component, outer component includes outer needle stand, casing and preceding
Hose, preceding hose are fixed on the front end of outer needle stand, and the front end of casing is connect with the rear end of outer needle stand, so that casing,
Outer needle stand and preceding hose are sequentially communicated；
Inner assembly includes the needle core of interior needle stand, inner flexible tube and hard, the fixed company in the front end of the rear end of needle core and interior needle stand
It connects, the front end of inner flexible tube is connect with the rear end of interior needle stand, so that inner flexible tube, interior needle stand and needle core are sequentially communicated；
Under original state, inner flexible tube is threaded through in casing, and interior needle stand is in outer needle stand, needle core be applied in front of in hose and
It is pierced by from the front end of preceding hose；
Under transfusion state, interior needle stand, inner flexible tube and needle core are retreated, so that needle core is detached from the preceding hose, to be formed
Infusion channel；
It is characterized in that: being provided with the orientation being oriented for internal needle stand in puncture direction between interior needle stand and outer needle stand
Structure, and oriented structure can limit interior needle stand rotation.
Wherein, oriented structure includes guide slot and locator projections, and guide slot is arranged in outer needle stand and interior needle stand the two
One of, locator projections are arranged in the other of both outer needle stand and interior needle stand, and locator projections are slideably embedded in orientation
In slot.
Wherein, the inside portion of outer needle stand is arranged in locator projections, and the outside portion of interior needle stand is arranged in guide slot.
Wherein, oriented structure includes compatible first facade and the second facade, and the first facade is arranged in outer needle stand
Wall surface, the second facade are arranged in interior needle stand outside wall surface.
Wherein, oriented structure is the inner wall of outer needle stand and the outside wall surface of interior needle stand, and the inner wall of outer needle stand is non-isometrical
Cambered surface, the outside wall surface of interior needle stand are also non-equal diameter and arc surfaces.
The utility model has the beneficial effects that
A kind of transfusion needle of the stereotactic puncture of the invention, compared with prior art, due to interior needle stand and outer needle stand it
Between be provided with oriented structure, oriented structure can limit interior needle stand rotation.In assembly, the direction in the needle point cutting face of needle core is fixed
To in a fixed-direction of convenient vascular puncture, and after assembly, the direction in needle point cutting face will not change.Medical staff
When operating puncture, the direction in needle point cutting face will not change, and ensure that clinic punctures effect, the work for reducing medical staff is strong
Degree.After the completion of puncture, it will not deflect in needle core fallback procedures.
Detailed description of the invention
Fig. 1 is the structural schematic diagram under one of the embodiment original state of the transfusion needle of stereotactic puncture.
Fig. 2 is the structural schematic diagram under one of the embodiment transfusion state of the transfusion needle of stereotactic puncture.
Fig. 3 is the schematic diagram of the first oriented structure in embodiment.
Fig. 4 is the schematic diagram of second of oriented structure in embodiment.
Fig. 5 is the schematic diagram of the third oriented structure in embodiment.
Appended drawing reference includes:
Outer needle stand 1, locator projections 11, the first facade 12；
Casing 2, preceding hose 3；
Interior needle stand 4, guide slot 41, the second facade 42；
Inner flexible tube 5, needle core 6, fin 7.
Specific embodiment
It elaborates below in conjunction with specific embodiment to the invention.
A kind of transfusion needle of the stereotactic puncture of the present embodiment, as illustrated in fig. 1 and 2, including inner assembly and outer component, outer component
Including outer needle stand 1, casing 2 and preceding hose 3, preceding hose 3 is fixed on the front end of outer needle stand 1, the front end of casing 2 and outer needle stand
1 rear end connection, so that casing 2, outer needle stand 1 and preceding hose 3 are sequentially communicated, outer needle stand 1 is provided with for medical staff's hand
The fin 7 held.Inner assembly includes the needle core 6 of interior needle stand 4, inner flexible tube 5 and hard, the front end of the rear end of needle core 6 and interior needle stand 4
Be fixedly connected, the front end of inner flexible tube 5 is connect with the rear end of interior needle stand 4 so that inner flexible tube 5, interior needle stand 4 and needle core 6 according to
Secondary connection.Original state is as shown in Figure 1, inner flexible tube 5 is threaded through in described sleeve pipe 2, and interior needle stand 4 is in outer needle stand 1, needle core 6
It is pierced by before being applied in hose 3 and from the front end of preceding hose 3.When puncture, medical staff handles fin 7 and pushes forward, so that needle
Core 6 is pierced into blood vessel together with the front end of preceding hose 3, after puncturing successfully, medical staff pull inner flexible tube 5, make interior needle stand 4,
Inner flexible tube 5 and needle core 6 retreat, so that needle core 6 is detached from the preceding hose 3, form transfusion state as shown in Figure 2.This reality
It applies in example, the mode of hose 3 is that inner assembly is retreated to casing 2 before needle core 6 is detached from, and is sealed between interior needle stand 4 and casing 2, interior
Needle stand 4 is clamped or fastens the rear end for being fixed on casing 2, and needle core 6 is accommodated in casing 2, and soft preceding hose 3 stays in blood vessel
In, infusion apparatus is connected in the rear end of inner flexible tube 5, liquid successively passes through the outer needle stand of needle stand 4- needle core 6- casing 2- in inner flexible tube 5-
Hose 3 is infused before 1-.Certainly, the mode of hose 3 may also is that inner assembly is completely withdrawn from abandoning before needle core 6 is detached from practice
It sets, inner assembly is disposable, and then in the rear end of casing 2, connection infusion apparatus is infused.
In the present embodiment, oriented structure is provided between interior needle stand 4 and outer needle stand 1, oriented structure can limit interior needle stand 4
Rotation.Specifically, oriented structure can be one of following three kinds of structures: the first is as shown in figure 3, oriented structure includes guide slot
41 and locator projections 11, locator projections 11 inside portion of outer needle stand 1 is set, the outside portion of interior needle stand 4 is arranged in guide slot 41,
Locator projections 11 are slideably embedded in guide slot 41, and 11 integrated injection molding of locator projections is in outer needle stand 1,41 one of guide slot
It is molded in interior needle stand 4.Second as shown in figure 4, oriented structure includes compatible first facade 12 and the second facade 42,
The inner wall of outer needle stand 1 is arranged in first facade 12, and the second facade 42 is arranged in interior 4 outside wall surface of needle stand.The third is such as Fig. 5 institute
Show, oriented structure is the inner wall of outer needle stand 1 and the outside wall surface of interior needle stand 4, and the inner wall of outer needle stand 1 is non-equal diameter and arc surfaces, interior
The outside wall surface of needle stand 4 is also non-equal diameter and arc surfaces, similar American football shape.In assembly, the direction orientation in the needle point cutting face of needle core 6
In a fixed-direction of convenient vascular puncture, and after assembly, the direction in needle point cutting face will not change.Medical staff exists
When operation punctures, the direction in needle point cutting face will not change, and ensure that clinic punctures effect, the work for reducing medical staff is strong
Degree.After the completion of puncture, it will not deflect in 6 fallback procedures of needle core.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the invention, rather than to this hair
It is bright create protection scope limitation, although being explained in detail referring to preferred embodiment to the invention, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the invention, without departing from this
The spirit and scope of innovation and creation technical solution.
Claims (5)
1. a kind of transfusion needle of stereotactic puncture, including inner assembly and outer component, outer component includes outer needle stand, casing and preceding hose,
Preceding hose is fixed on the front end of outer needle stand, and the front end of casing is connect with the rear end of outer needle stand, so that casing, outer needle stand
It is sequentially communicated with preceding hose；
Inner assembly includes the needle core of interior needle stand, inner flexible tube and hard, and the rear end of needle core is fixedly connected with the front end of interior needle stand, interior
The front end of hose is connect with the rear end of interior needle stand, so that inner flexible tube, interior needle stand and needle core are sequentially communicated；
Under original state, inner flexible tube is threaded through in casing, and interior needle stand is in outer needle stand, and needle core is applied in preceding hose and the past
The front end of hose is pierced by；
Under transfusion state, interior needle stand, inner flexible tube and needle core are retreated, so that needle core is detached from the preceding hose, to form infusion
Channel；
It is characterized in that: being provided with oriented structure between interior needle stand and outer needle stand, oriented structure can limit interior needle stand rotation.
2. the transfusion needle of a kind of stereotactic puncture according to claim 1, it is characterized in that: oriented structure includes guide slot and determines
To protrusion, guide slot setting is arranged in one of both outer needle stand and interior needle stand, locator projections in outer needle stand and interior needle stand
The other of the two, locator projections are slideably embedded in guide slot.
3. the transfusion needle of a kind of stereotactic puncture according to claim 2, it is characterized in that: outer needle stand is arranged in locator projections
The outside portion of interior needle stand is arranged in inside portion, guide slot.
4. the transfusion needle of a kind of stereotactic puncture according to claim 1, it is characterized in that: oriented structure includes compatible
The inner wall of outer needle stand is arranged in one facade and the second facade, the first facade, and the second facade is arranged in interior needle stand outside wall surface.
5. the transfusion needle of a kind of stereotactic puncture according to claim 1, it is characterized in that: oriented structure is the inner wall of outer needle stand
The outside wall surface in face and interior needle stand, the inner wall of outer needle stand are non-equal diameter and arc surfaces, and the outside wall surface of interior needle stand is also non-equal diameter and arc surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048668.3U CN209316695U (en) | 2018-06-29 | 2018-06-29 | A kind of transfusion needle of stereotactic puncture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048668.3U CN209316695U (en) | 2018-06-29 | 2018-06-29 | A kind of transfusion needle of stereotactic puncture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209316695U true CN209316695U (en) | 2019-08-30 |
Family
ID=67705119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821048668.3U Active CN209316695U (en) | 2018-06-29 | 2018-06-29 | A kind of transfusion needle of stereotactic puncture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209316695U (en) |
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2018
- 2018-06-29 CN CN201821048668.3U patent/CN209316695U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221216 Address after: 525000 Room 301, No. 07-2, Private Science and Technology Industrial Park, Dianhai Street, Dianbai District, Maoming, Guangdong Patentee after: Guangdong Xianlai Medical Technology Co.,Ltd. Address before: No.07-2, zone 2, private science and Technology Industrial Park, Dianbai County, Maoming City, Guangdong Province Patentee before: GUANGDONG XIANLAI MEDICAL DEVICES Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: GUANGDONG XIANLAI MEDICAL DEVICES Co.,Ltd. Assignor: Guangdong Xianlai Medical Technology Co.,Ltd. Contract record no.: X2023980036354 Denomination of utility model: A directional puncture infusion needle Granted publication date: 20190830 License type: Exclusive License Record date: 20230607 |
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| EE01 | Entry into force of recordation of patent licensing contract |