CN211609997U - Blood vessel puncture sheath - Google Patents
Blood vessel puncture sheath Download PDFInfo
- Publication number
- CN211609997U CN211609997U CN201922466660.XU CN201922466660U CN211609997U CN 211609997 U CN211609997 U CN 211609997U CN 201922466660 U CN201922466660 U CN 201922466660U CN 211609997 U CN211609997 U CN 211609997U
- Authority
- CN
- China
- Prior art keywords
- puncture
- sheath
- puncture needle
- sheath pipe
- locking structure
- 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.)
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- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 14
- 239000004743 Polypropylene Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- -1 polypropylene Polymers 0.000 claims abstract description 9
- 229920001155 polypropylene Polymers 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000002792 vascular Effects 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004417 polycarbonate Substances 0.000 abstract description 3
- 229920000515 polycarbonate Polymers 0.000 abstract description 3
- 239000004793 Polystyrene Substances 0.000 abstract description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 abstract description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920002223 polystyrene Polymers 0.000 abstract description 2
- 229920002635 polyurethane Polymers 0.000 abstract description 2
- 239000004814 polyurethane Substances 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 206010003226 Arteriovenous fistula Diseases 0.000 description 1
- 208000009087 False Aneurysm Diseases 0.000 description 1
- 206010048975 Vascular pseudoaneurysm Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000007887 coronary angioplasty Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000023597 hemostasis Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Abstract
The utility model provides a blood vessel puncture sheath, including pjncture needle, puncture needle file, sheath pipe and sheath pipe seat, the sheath pipe box is in pjncture needle surface, the one end surface that puncture needle file and pjncture needle link to each other is equipped with first locking structure, and the one end that the pjncture needle was kept away from to the puncture needle file is the interface end, the one end of keeping away from the sheath pipe of sheath pipe seat is equipped with second locking structure, and first locking structure and second locking structure cooperate, and the length of pjncture needle is greater than the length of sheath pipe, interface end department is equipped with ventilative stopper, the material of puncture needle file is arbitrary one in polycarbonate, ABS, polyurethane or the PVC, the material of ventilative stopper is arbitrary one in polypropylene, the polystyrene series plastics. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, simplify the puncture flow, easy operation need not puncture many times.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a vascular puncture sheath.
Background
With the continuous development of medical technology, the operation methods of peripheral venous transfusion therapy and percutaneous internal intervention operation are more and more, wherein the operation method of peripheral venous catheter implantation, percutaneous transluminal coronary angioplasty and other similar operations are generally applied to clinic at present. These procedures introduce medical instruments into the respective body vessels. Among them, the Seldinger technique is widely used in which a puncture needle is inserted into an arterial or venous blood vessel, a guide wire is introduced into the artery or vein through an inner lumen of the puncture needle, and the puncture needle is removed. The dilator is passed through the introducer sheath hemostasis valve into the introducer sheath lumen, both having a tubular configuration, and both are passed together into the artery or vein after being locked at the proximal end by the locking structure. And withdrawing the dilator after the position of the sheath tube is fixed. The resulting catheter sheath may be used as a passage for accessing or replacing various interventional devices.
The disadvantages are as follows: 1. because the puncture needle and the catheter sheath are two components, the puncture needle has multiple operation steps, long use time and needs to puncture for multiple times when in use, increases the risk of damaging blood vessels and puncture parts, and obviously increases the occurrence of related complications of puncture points, such as pseudoaneurysm, arteriovenous fistula and the like. The influence on the patient is large. 2. The successful insertion can be proved by using a syringe to suck whether blood flows out through a three-way of a catheter sheath.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a blood vessel puncture sheath with simple structure and simple and convenient operation.
The technical scheme of the utility model is that: the utility model provides a blood vessel puncture sheath, includes pjncture needle, puncture needle file, sheath pipe and sheath pipe seat, the sheath pipe box is in pjncture needle surface, the one end surface that puncture needle file and pjncture needle link to each other is equipped with first locking structure, and the one end that the pjncture needle was kept away from to the puncture needle file is the interface end, the one end of keeping away from the sheath pipe of sheath pipe seat is equipped with second locking structure, and first locking structure and second locking structure cooperate, and the length of pjncture needle is greater than the length of sheath pipe, interface end department is equipped with ventilative stopper, the puncture needle file is made by transparent material. The transparent material is any one of polycarbonate, ABS, polyurethane or PVC, and the material of the air-permeable plug is any one of polypropylene and polystyrene plastics. The outer diameter of one end of the sheath tube close to the puncture needle tip is gradually changed, and the sheath tube and the puncture needle form a smooth cone. The utility model discloses directly cover the sheath pipe on the surface of pjncture needle, the sheath pipe is along with the pjncture needle puncture the blood vessel in, takes out the pjncture needle after the puncture is accomplished, has simplified the puncture step. In addition, the puncture needle seat is made of transparent plastic materials and is matched with the air-permeable plug which is only permeable and impermeable to liquid, the blood return condition can be effectively observed, so that whether puncture is successful or not is judged, and compared with a traditional three-way suction mode, the operation process is greatly simplified and optimized.
The outer surface in puncture needle file middle part is equipped with the ring, and the plane at ring place is perpendicular with the axis of puncture needle file, ventilative stopper including fill in the first end of puncture needle file and the second end opposite with the first end, the external diameter of ventilative stopper is held grow gradually by first end to the second, the length that the puncture needle file was filled in to ventilative stopper is less than the distance that the ring reaches puncture needle file interface end. The arrangement of the circular ring provides an acting point for the hand action of an operator during puncture, so that the operator can perform the puncture action only by the friction force generated by pinching the puncture needle seat, and the arrangement has important significance for puncture needles with thick needle heads and blood vessel puncture actions with high puncture precision requirements. The puncture needle seat is incompletely stuffed into by the ventilative stopper, and transparent puncture needle seat reserves the cavity at the ring front end, and the operator hand is located the ring rear portion, and the cavity of ring front end is as the window of blood return observation, and the operator need not loosen the hand and can observe the blood return condition to judge whether puncture is successful or not.
The outer surface of the puncture needle seat from the circular ring to the interface end is provided with a strip-shaped bulge parallel to the axis of the puncture needle seat. Locking structure includes helicitic texture and rotatory joint structure, and most of all adopt rotatory mode to separate, and the strip is protruding except having the stiffening rib function, reduces the wall thickness of puncture needle file, and more importantly, its rotation that is convenient for the operator to hold the puncture needle file, the locking state of contact locking structure.
Sheath pipe seat is including 2 wing handles that the symmetry set up, the wing handle links to each other with the sheath pipe through the arc piece of perpendicular to wing handle, the arc piece cooperatees with the surface of sheath pipe, wing handle and the integrative injection moulding of arc piece. After the intervention device finishes the intervention, the blood vessel sheath needs to be withdrawn, and the wing handle provides an acting point for tearing the sheath so as to withdraw. The second locking structure is positioned at one end of the wing handle far away from the sheath tube.
The blood vessel puncture sheath is also provided with a protective sleeve, and the sum of the outer diameter of the sheath at the arc-shaped piece and the thickness of the arc-shaped piece is equal to the inner diameter of the protective sleeve. Because the combination of syringe needle and sheath pipe, the outside safety protection that needs the protection tube of syringe needle, in addition, through the fixed of protective case, can effectually reduce the unexpected probability of tearing of wing handle with the sheath pipe.
The sheath pipe is symmetrically provided with 2 guide grooves along the axial direction, and the guide grooves are positioned between the arc-shaped pieces of the two wing handles.
The wall thickness of the guide groove of the sheath tube is gradually increased from one end of the sheath tube seat to the other end of the sheath tube seat, and the ratio of the wall thickness of the guide groove of the sheath tube at one end of the sheath tube seat to the wall thickness of the sheath tube is 1:5-1: 8. The guide groove plays a guide role in tearing the sheath tube, the tearing starting end of the sheath tube is easy to tear, and the wall thickness of one end, close to the needle point of the puncture needle, of the sheath tube is relatively thick due to the fact that the smooth transition between the sheath tube and the puncture needle needs to be kept. And one end of the sheath tube close to the needle point of the puncture needle is gradually thinned due to the wall thickness, and the guide groove ensures certain wall thickness, thereby being beneficial to ensuring the stability of the sheath tube and preventing the front end from being torn accidentally.
The vent plug is made of polypropylene material, and the pore size of the polypropylene in the vent plug is 0.02-0.05 μm.
The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the puncture flow is simplified, the operation is simple, and multiple punctures are not needed.
Drawings
FIG. 1 is a schematic view of the appearance of the present invention
FIG. 2 is a cross-sectional view of the present invention
In the figure:
1. puncture needle 2, puncture needle seat 3 and sheath tube
4. Wing handle 5, first locking structure 6, second locking structure
7. A ventilating plug 8, a circular ring 9 and a strip-shaped bulge
10. Arc-shaped sheet
Detailed Description
As shown in fig. 1, the utility model discloses
The utility model provides a blood vessel puncture sheath, includes pjncture needle 1, puncture needle file 2, sheath pipe 3 and sheath tube socket, 3 covers in 1 surfaces of pjncture needle of sheath pipe, the one end surface that puncture needle file 2 and pjncture needle 1 link to each other is equipped with first locking structure 5, and the one end that pjncture needle 1 was kept away from to the puncture needle file is the interface end, the one end of keeping away from sheath pipe 3 of sheath tube socket is equipped with second locking structure 6, and first locking structure 5 and second locking structure 6 cooperate, and the length of pjncture needle 1 is greater than the length of sheath pipe 3, interface end department is equipped with ventilative stopper 7, the material of puncture needle file is polycarbonate, the material of ventilative stopper 7 is polypropylene.
The outer surface in puncture needle file middle part is equipped with ring 8, and the plane at ring 8 place is perpendicular with the axis of puncture needle file, ventilative stopper 7 is held with the second opposite with first end including the first end of plugging in the puncture needle file, and the external diameter of ventilative stopper 7 is held the grow gradually by first end to the second, the length that the puncture needle file was plugged in to ventilative stopper 7 is less than the distance of ring 8 to puncture needle file interface end.
The outer surface of the puncture needle seat from the circular ring to the interface end is provided with a strip-shaped bulge parallel to the axis of the puncture needle seat.
Sheath pipe seat is including 2 wing handles 4 that the symmetry set up, wing handle 4 links to each other with sheath pipe 3 through the arc piece 10 of perpendicular to wing handle 4, arc piece 10 cooperatees with the surface of sheath pipe 3, wing handle 4 and the integrative injection moulding of arc piece 10.
The blood vessel puncture sheath is also provided with a protective sleeve, and the sum of the outer diameter of the sheath at the arc-shaped piece 10 and the thickness of the arc-shaped piece 10 is equal to the inner diameter of the protective sleeve.
The vent plug 7 is made of polypropylene material, and the pore size of the polypropylene in the vent plug 7 is 0.02-0.05 μm.
The working process of the example is as follows:
when the puncture needle is used, the puncture needle 1 is inserted into the sheath tube 3, the first locking structure 5 of the puncture needle base 2 and the second locking structure 6 on the sheath tube base are in a locking state, during puncture, an operator holds the puncture needle base 2, which is far away from one side of the puncture needle 1, of the circular ring 8 to perform puncture action, and the success or failure of puncture is determined by observing the blood return condition in the puncture needle base 2, which is close to one side of the puncture needle 1, of the circular ring 8. When the blood returning condition meets the puncture requirement, the puncture is completed, the operator holds the sheath tube seat with one hand and rotates the strip-shaped bulge 9 of the puncture needle seat 3 with the other hand, the locking state of the first locking structure 5 and the second locking structure 6 is released, the puncture needle 1 is withdrawn from the sheath tube 2, and the sheath tube is kept.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (6)
1. A vascular puncture sheath, comprising: including pjncture needle, puncture needle file, sheath pipe and sheath pipe seat, the sheath pipe box is in the pjncture needle surface, the one end surface that puncture needle file and pjncture needle link to each other is equipped with first locking structure, and the one end that the pjncture needle was kept away from to the puncture needle file is the interface end, the one end of keeping away from the sheath pipe of sheath pipe seat is equipped with second locking structure, and first locking structure and second locking structure cooperate, and the length of pjncture needle is greater than the length of sheath pipe, interface end department is equipped with ventilative stopper, the puncture needle file is made by transparent material.
2. The vascular puncture sheath of claim 1, wherein: the outer surface in puncture needle file middle part is equipped with the ring, and the plane at ring place is perpendicular with the axis of puncture needle file, ventilative stopper including fill in the first end of puncture needle file and the second end opposite with the first end, the external diameter of ventilative stopper is held grow gradually by first end to the second, the length that the puncture needle file was filled in to ventilative stopper is less than the distance that the ring reaches puncture needle file interface end.
3. The vascular puncture sheath of claim 2, wherein: the outer surface of the puncture needle seat from the circular ring to the interface end is provided with a strip-shaped bulge parallel to the axis of the puncture needle seat.
4. The vascular puncture sheath of claim 1, wherein: sheath pipe seat is including 2 wing handles that the symmetry set up, the wing handle links to each other with the sheath pipe through the arc piece of perpendicular to wing handle, the arc piece cooperatees with the surface of sheath pipe, wing handle and the integrative injection moulding of arc piece.
5. The vascular puncture sheath of claim 4, wherein: the blood vessel puncture sheath is also provided with a protective sleeve, and the sum of the outer diameter of the sheath at the arc-shaped piece and the thickness of the arc-shaped piece is equal to the inner diameter of the protective sleeve.
6. The vascular puncture sheath of claim 2, wherein: the vent plug is made of polypropylene material, and the pore size of the polypropylene in the vent plug is 0.02-0.05 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922466660.XU CN211609997U (en) | 2019-12-31 | 2019-12-31 | Blood vessel puncture sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922466660.XU CN211609997U (en) | 2019-12-31 | 2019-12-31 | Blood vessel puncture sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211609997U true CN211609997U (en) | 2020-10-02 |
Family
ID=72634586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922466660.XU Active CN211609997U (en) | 2019-12-31 | 2019-12-31 | Blood vessel puncture sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211609997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451058A (en) * | 2020-11-26 | 2021-03-09 | 谢为 | Antibacterial vascular sheath |
-
2019
- 2019-12-31 CN CN201922466660.XU patent/CN211609997U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112451058A (en) * | 2020-11-26 | 2021-03-09 | 谢为 | Antibacterial vascular sheath |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |