CN213551991U - Pollution-reducing puncture needle - Google Patents
Pollution-reducing puncture needle Download PDFInfo
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- CN213551991U CN213551991U CN202022600482.8U CN202022600482U CN213551991U CN 213551991 U CN213551991 U CN 213551991U CN 202022600482 U CN202022600482 U CN 202022600482U CN 213551991 U CN213551991 U CN 213551991U
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- needle
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- puncture
- bag hose
- hose
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Abstract
The utility model discloses a pollution-reducing puncture needle, including pjncture needle sleeve pipe and nook closing member, the nook closing member runs through in pjncture needle sheathed tube axial passageway, the pjncture needle sleeve pipe includes the needle bar, the both ends of needle bar are provided with syringe needle and needle file respectively, the outer wall cover of needle bar is equipped with air entrainment inflation bag hose, the one end inboard that is close to the syringe needle on the air entrainment inflation bag hose is provided with the bonding ring, be provided with the air cock on the air entrainment inflation bag hose. The utility model discloses an outer wall cover at the needle bar is equipped with air entrainment inflation bag hose, when withdrawing the needle, realize air entrainment inflation bag hose through adding the air cock and aerify, air entrainment inflation bag hose inflation outer tube diameter grow, make air entrainment inflation bag hose hug closely and extrude with the puncture channel inner wall, make the frictional force between air entrainment inflation bag hose and the puncture channel inner wall increase, puncture needle sleeve pipe will be wrapped up in the inner tube of air entrainment inflation bag hose gradually when the puncture needle sleeve pipe withdraws from, thereby reduce or avoid the pollution of needle tubing head to the puncture channel.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to pollution-reducing puncture needle.
Background
Biopsy is a common method for clinical diagnosis of diseases. The puncture intervenes the organism and gets the apparatus that the biopsy etc. adopted and is the pjncture needle, inserts the pjncture needle puncture into the organism when using and gets the biopsy, gets the needle that withdraws after the biopsy is accomplished.
Because a channel is formed in the body during puncture, the channel is easily polluted by residual sample (biopsy sample) carried by a needle (sleeve) tube head when the needle is withdrawn. Therefore, how to reduce or avoid the pollution of the needle tube head to the puncture channel after taking the biopsy, thereby reducing the secondary diseases is the key for improving the safety of taking the biopsy by the puncture interventional organism.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pollution abatement pjncture needle solves the problem that easily leads to puncture channel to pollute when pjncture needle sleeve pipe moves back the needle.
The utility model discloses a following technical scheme realizes:
the pollution-reducing puncture needle comprises a puncture needle sleeve and a needle core, wherein the needle core penetrates through an axial channel of the puncture needle sleeve, the puncture needle sleeve comprises a needle rod, the two ends of the needle rod are respectively provided with a needle head and a needle seat, the outer wall of the needle rod is sleeved with an air inflation expansion bag hose, an adhesive ring is arranged on the inner side of one end, close to the needle head, of the air inflation expansion bag hose, the air inflation expansion bag hose is connected with the needle rod through the adhesive ring, an air adding nozzle is arranged on the air inflation expansion bag hose, when the air inflation expansion bag hose is in a normal state, the outer diameter of the air inflation expansion bag hose is smaller than the maximum outer diameter of the needle head, the needle rod can be tightly attached to the air inflation bag hose under negative pressure, and when the.
The bonding ring of the utility model can be glue.
The working principle of the utility model is as follows:
before puncture, the air-entrapping expansion capsule hose is in a normal state (a contraction state), at the moment, the outer diameter of the air-entrapping expansion capsule hose is smaller than the maximum outer diameter of the needle head, the puncture is not influenced, when the puncture needle cannula intervenes in a body to finish biopsy taking, a certain amount of pressure gas is added from the gas adding nozzle to inflate the gas adding expansion bag hose, the diameter of the gas adding expansion bag hose is enlarged, the friction force between the outer wall of the gas adding expansion bag hose (excluding the gas adding nozzle outside the body) intervened in the body and the puncture channel is enlarged, when the puncture needle sleeve is withdrawn from the interventional organism under the state of keeping a certain amount of pressure, the diameter of the outer tube expanded by the air-entrapping expansion capsule hose is increased, and the friction force between the outer tube and the wall of the puncture channel is increased, so that the puncture needle sleeve is gradually wrapped in the inner tube of the air-entrapping expansion capsule hose when the puncture needle sleeve is withdrawn, and the pollution of the needle tube head to the puncture channel is reduced or avoided.
The utility model discloses an outer wall cover at the needle bar is equipped with air entrainment inflation bag hose, when withdrawing the needle, realize air entrainment inflation bag hose through adding the air cock and aerify, air entrainment inflation bag hose inflation outer tube diameter grow, make air entrainment inflation bag hose hug closely and the extrusion with the puncture channel inner wall, make the frictional force between air entrainment inflation bag hose and the puncture channel inner wall increase, when the pjncture needle sleeve pipe withdraws from, under the effect of bonding ring, the tip and the syringe needle bonding of air entrainment inflation bag hose, when withdrawing the needle, the syringe needle drives the tip income air entrainment inflation bag hose of air entrainment inflation bag hose in, the pjncture needle sleeve pipe will be wrapped up in the inner tube of air entrainment inflation bag hose gradually, thereby reduce or avoid the needle tubing to puncture channel's pollution, the problem that easily leads to puncture channel when having solved the pjncture needle sleeve pipe and.
Furthermore, a first inclined plane is arranged at one end, connected with the needle rod, of the needle head, a second inclined plane is arranged at one end, close to the needle head, of the air inflation expansion bag hose, and the first inclined plane and the second inclined plane are arranged in parallel.
The utility model discloses a set up first inclined plane and second inclined plane, the syringe needle gets into the soft 2 inboards of air entrainment inflation bag hose parcel when being convenient for withdraw of the needle.
Furthermore, one end of the needle head connected with the needle rod is of a circular truncated cone structure, and the small end of the circular truncated cone structure is connected with the needle rod.
Further, the needle seat is a convex structure with a large end and a small end, and the small end of the convex structure is connected with the needle rod.
Furthermore, the needle seat, the needle head and the needle rod are of an integrated structure.
Furthermore, the puncture needle sleeve and the needle core adopt clearance fit.
Further, the air-entrapping expansion bag hose is made of a medical silica gel material.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model discloses an outer wall cover at the needle bar is equipped with air entrainment inflation bag hose, when withdrawing the needle, realize air entrainment inflation bag hose through adding the air cock and aerify, air entrainment inflation bag hose inflation outer tube diameter grow, make air entrainment inflation bag hose hug closely and extrude with the puncture channel inner wall, make the frictional force between air entrainment inflation bag hose and the puncture channel inner wall increase, puncture needle sleeve pipe will be wrapped up in the inner tube of air entrainment inflation bag hose gradually when the puncture needle sleeve pipe withdraws from, thereby reduce or avoid the pollution of needle tubing head to the puncture channel.
2. The external diameter of needle bar is less than the external diameter of syringe needle and the external diameter of needle file, and when the inflation bag hose of being convenient for was in the normality, the stable cover was established on the needle bar, and the syringe needle and the needle file at both ends have limiting displacement to inflation bag hose.
3. The utility model discloses a set up first inclined plane and second inclined plane, be convenient for back the needle and get into when the soft inboard of air entrainment inflation by air entrainment inflation bag hose parcel.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of a contamination reduction introducer needle;
FIG. 2 is a schematic view of an inflated bladder hose when not inflated;
FIG. 3 is a schematic view of the diameter of the aerated expansion bladder hose becoming larger after aeration;
fig. 4 is a schematic view of the needle cannula as it is being withdrawn.
Reference numbers and corresponding part names in the drawings:
1-puncture needle sleeve, 2-air inflation expansion bag hose, 11-needle head, 12-needle seat, 13-needle core and 21-air adding nozzle.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example 1:
as shown in fig. 1, the pollution-reducing puncture needle comprises a puncture needle sleeve 1 and a needle core 13, the needle core 13 is used for taking diagnosis and treatment items such as biopsy, the needle core 13 penetrates through an axial channel of the puncture needle sleeve 1, the puncture needle sleeve 1 and the needle core 13 adopt clearance fit, the puncture needle sleeve 1 comprises a needle rod, two ends of the needle rod are respectively provided with a needle head 11 and a needle seat 12, the needle head 11 and the needle seat 12 and the needle rod are of an integrated structure, the outer diameter of the needle rod is smaller than the outer diameter of the needle head 11 and the outer diameter of the needle seat 12, an air-entrapping expansion bag hose 2 is sleeved on the outer wall of the needle rod, an adhesive ring is arranged on the inner side of one end, close to the needle head 11, of the air-entrapping expansion bag hose 2 is connected with the needle rod through the adhesive ring, an air-entrapping expansion bag hose 21 is, the outer diameter of the air-entrapping expansion bag hose 2 is smaller than the maximum outer diameter of the needle head 11, when the air-entrapping expansion bag hose 2 is in an inflated state, the needle head 11 can be taken into the inner side of the air-entrapping expansion bag hose 2, specifically, the air-entrapping expansion bag hose 2 is composed of an inner tube and an outer tube, an annular inflation cavity is formed between the inner tube and the outer tube, the inflation cavity is sleeved on the needle rod and communicated with the inflation nozzle 21, and the air-entrapping expansion bag hose 2 is made of medical silica gel materials.
The working principle of the embodiment is as follows:
before puncture, the gas-filled expansion bag hose 2 is in a normal state (a contraction state), as shown in fig. 2, at the moment, the outer diameter of the gas-filled expansion bag hose 2 is smaller than the maximum outer diameter of the needle head 11, puncture is not affected, after the puncture needle cannula is inserted into a body to complete biopsy taking, the gas-filled expansion bag hose 2 is expanded by adding a certain amount of pressure gas through the gas adding nozzle 21, the diameter of the gas-filled expansion bag hose 2 is increased, as shown in fig. 3, the friction force between the outer tube wall of the gas-filled expansion bag hose 2 (excluding the gas adding nozzle 21 outside the body) inserted into the body and the puncture channel is increased, the puncture needle cannula 1 inserted into the body is withdrawn under the state of keeping a certain amount of pressure, at the moment, the diameter of the outer tube of the gas-filled expansion bag hose 2 is increased, the friction force between the outer tube wall of the puncture channel is increased, when the puncture, when withdrawing the needle, the needle head 11 drives the end part of the air-entrapping expansion bag hose 2 to be collected into the air-entrapping expansion bag hose 2, and the puncture needle sleeve 1 is gradually wrapped in the inner tube of the air-entrapping expansion bag hose 2, as shown in fig. 4, so that the pollution of the needle head 11 to the puncture channel is reduced or avoided.
Example 2:
as shown in fig. 1, in this embodiment, based on embodiment 1, a first inclined plane is disposed at one end of the needle 11 connected to the needle rod, a second inclined plane is disposed at one end of the inflatable bladder hose 2 close to the needle 11, the first inclined plane and the second inclined plane are arranged in parallel, specifically, one end of the needle 11 connected to the needle rod is a circular truncated cone structure, and a small end of the circular truncated cone structure is connected to the needle rod.
In this embodiment, by providing the first inclined surface and the second inclined surface, the needle 11 is conveniently wrapped by the air-entrapping expansion bladder hose 2 when entering the inner side of the air-entrapping expansion bladder hose 2 during needle withdrawal.
Example 3:
as shown in fig. 1, in this embodiment, based on embodiment 1, the needle holder 12 is a convex structure with a large end and a small end, and the small end of the convex structure is connected with the needle rod, so as to facilitate manual operation of the needle holder 12.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The pollution-reducing puncture needle comprises a puncture needle sleeve (1) and a needle core (13), wherein the needle core (13) penetrates through an axial channel of the puncture needle sleeve (1), it is characterized in that the puncture needle sleeve (1) comprises a needle rod, two ends of the needle rod are respectively provided with a needle head (11) and a needle seat (12), the outer wall of the needle rod is sleeved with an air-entrapping expansion bag hose (2), the inner side of one end of the air-entrapping expansion bag hose (2) close to the needle head (11) is provided with a bonding ring, the air-entrapping expansion bag hose (2) is provided with an air-entrapping nozzle (21), when the air-entrapping expansion capsule hose (2) is in a normal state, the outer diameter of the air-entrapping expansion capsule hose (2) is smaller than the maximum outer diameter of the needle head (11), when the air-entrapping expansion capsule hose (2) is in an inflated state, the needle (11) can be retracted into the inner side of the air-entrapping expansion capsule hose (2).
2. The pollution-reducing puncture needle according to claim 1, wherein the end of the needle head (11) connected with the needle rod is provided with a first inclined surface, the end of the aerated inflation bladder hose (2) close to the needle head (11) is provided with a second inclined surface, and the first inclined surface and the second inclined surface are arranged in parallel.
3. The pollution-reducing puncture needle according to claim 2, wherein the end of the needle head (11) connected with the needle rod is of a circular truncated cone structure, and the small end of the circular truncated cone structure is connected with the needle rod.
4. A contamination-reduction puncture needle according to claim 1, wherein the needle holder (12) is a convex structure with a large end and a small end, and the small end of the convex structure is connected with the needle rod.
5. A contamination-reduction puncture needle according to claim 1, wherein the needle holder (12), the needle head (11) and the needle shaft are of an integrally formed structure.
6. A contamination reduction puncture needle according to claim 1, wherein the puncture needle cannula (1) and the needle core (13) adopt a clearance fit.
7. A pollution-reducing puncture needle according to any one of claims 1 to 6, wherein the air-entrapping expansion bladder hose (2) is made of medical silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022600482.8U CN213551991U (en) | 2020-11-11 | 2020-11-11 | Pollution-reducing puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022600482.8U CN213551991U (en) | 2020-11-11 | 2020-11-11 | Pollution-reducing puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213551991U true CN213551991U (en) | 2021-06-29 |
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ID=76537967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022600482.8U Active CN213551991U (en) | 2020-11-11 | 2020-11-11 | Pollution-reducing puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213551991U (en) |
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2020
- 2020-11-11 CN CN202022600482.8U patent/CN213551991U/en active Active
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