CN220046009U - Hydraulic puncture device - Google Patents
Hydraulic puncture device Download PDFInfo
- Publication number
- CN220046009U CN220046009U CN202321165355.7U CN202321165355U CN220046009U CN 220046009 U CN220046009 U CN 220046009U CN 202321165355 U CN202321165355 U CN 202321165355U CN 220046009 U CN220046009 U CN 220046009U
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- Prior art keywords
- extension hose
- puncture
- rigid
- tube
- perforation
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 12
- 238000012276 Endovascular treatment Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000005077 saccule Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000007631 vascular surgery Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to a hydraulic puncturing device, which comprises an extension hose, a rigid puncturing needle tube and a spring. The extension hose of the hydraulic puncture device is soft, is conveniently sleeved in the soft sheath tube and matched with the sheath tube to reach the part to be punctured, and then the part to be punctured can be punctured by the telescopic rigid puncture needle tube positioned in the front end lumen of the extension hose, so that the puncture operation is simple and convenient, and the damage to blood vessels is avoided; and when the guide wire is penetrated, the inner peripheral wall of the second perforation of the guide part is obliquely inwards arranged from the rear end to the front end, so that the guide wire is convenient to insert, and kink is not generated.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a hydraulic puncture device.
Background
The endovascular treatment technology for vascular surgery is a minimally invasive treatment technology which is gradually developed in recent decades, has the advantages of small trauma, short postoperative recovery time, few complications and the like, and is rapidly developed and widely applied clinically.
In the case of endovascular treatment, an endovascular puncture operation is sometimes required. Because of the curved travel of the blood vessel in the body, the hard puncture needle is difficult to pass through the curved blood vessel, and the puncture force of the too soft puncture needle is difficult to send to the far end, so that the puncture is difficult and even the blood vessel is accidentally damaged.
Disclosure of Invention
The extension hose of the hydraulic puncture device is flexible, so that the extension hose is conveniently sleeved in the flexible sheath tube to be matched with the sheath tube to reach the puncture part, and then the puncture part to be punctured can be punctured through the telescopic rigid puncture needle tube positioned in the front end lumen of the extension hose, so that the puncture operation is simple and convenient, and the damage to blood vessels is avoided; and when the guide wire is penetrated, the inner peripheral wall of the second perforation of the guide part is obliquely inwards arranged from the rear end to the front end, so that the guide wire is convenient to insert, and kink is not generated.
The utility model is realized by the following technical scheme:
a hydraulic puncture device comprises an extension hose, a rigid puncture needle tube and a spring;
the rigid puncture needle tube comprises a needle point part positioned at the front end in the axial direction and used for puncture, and a guide part integrally arranged at the rear end of the needle point part and having an outer diameter larger than that of the needle point part;
the extension hose comprises a tube body extending from front to back along the axial direction, a limiting convex ring with the reduced inner diameter is arranged in the tube orifice at the front end of the tube body, and a through hole I capable of penetrating through the needle point part is arranged in the center of the limiting convex ring;
the spring is sleeved outside the needle point part and is propped between the rear end of the limiting convex ring and the front end of the guide part;
the needle tip is internally provided with a first perforation which is communicated with the front end part to the rear end part along the axial direction and used for penetrating a guide wire, the guide part is internally provided with a second guide perforation which extends forwards from the rear end part and is coaxially communicated with the first perforation and used for guiding the guide wire to enter the first perforation, and the inner peripheral wall of the second perforation is gradually reduced from the rear end to the front end to be connected with the first perforation; after the guide wire is inserted into the extension hose, the guide wire can be movably penetrated into the first through hole through the second through hole;
the outer wall of the guide part of the rigid puncture needle tube is arranged on the inner wall of the extension hose in a sliding way.
When the puncture device is used, the puncture device is placed in the sheath tube, the puncture device reaches a puncture part under the guidance of the guide wire, then the guide wire is retracted into the puncture needle, the tail part of the extension hose is locked to form a closed cavity, the pressure pump is used for generating liquid pressure by injecting liquid, the rigid puncture needle tube is pushed to move forwards under the action of the hydraulic pressure, and the spring is compressed, so that the needle point part extends out of the front end pipe orifice of the extension hose, and the puncture of a target point is completed. After puncture is successful, the guide wire is sent into a target blood vessel, the pressurized liquid is pumped back to generate negative pressure, the rigid puncture needle tube is retracted to the original position under the action of the resilience force and the negative pressure of the spring, the puncture device is withdrawn, and then the subsequent operation can be performed through the guide wire and the like. Because of the cooperation of the extension hose and the telescopic rigid puncture needle tube for puncture, the puncture operation is simple and convenient, and the puncture and the damage to the blood vessel are not influenced by the bending of the blood vessel.
The extension hose of the hydraulic puncture device is soft, is convenient to be matched with a soft sheath tube for use, is convenient to puncture, and has a simple structure. And the inner peripheral wall of the second perforation is obliquely inwards arranged from the rear end to the front end, so that the guide wire is convenient to insert and does not kink.
In order to avoid retracting the puncture device due to reaction force during puncture, fixing the hydraulic puncture device and stabilizing the puncture operation, the utility model further preferably adopts the following scheme:
the outer peripheral wall of the front end part of the extension hose is annularly provided with a first annular limiting groove, the hydraulic puncture device further comprises an annular balloon sleeved in the first annular limiting groove and a through pipe arranged at the rear side of the annular balloon and extending backwards along the outer wall of the extension hose, the rear end of the annular balloon is provided with a through hole II, and the through hole II is communicated with the front port of the through pipe.
According to the scheme, after the whole hydraulic puncture device is sent into place, liquid is injected into the saccule to expand the saccule, so that the hydraulic puncture device is fixed in a blood vessel cavity or a long sheath, and the whole hydraulic puncture device is prevented from moving backwards and rebounding during puncture.
In order to prevent excessive rebound of the needle, the utility model further preferably adopts the following scheme:
the inner wall of the extension hose is also fixedly provided with a limiting protrusion which is arranged around the center of the extension hose at intervals and is positioned at the rear side of the working position of the rigid puncture needle tube and used for limiting the back-out limit position of the rigid puncture needle tube, the limiting protrusion is made of rigid materials, and the inner wall of the limiting protrusion extends from the rear end to the front end in an inclined direction towards the direction close to the center, so that the rigid puncture needle tube can conveniently enter the working position forwards, and the rigid puncture needle tube can be prevented from moving backwards and separating from the working position.
The limiting bulge of the scheme can enable the rigid puncture needle tube to be pushed forward, but can prevent the rigid puncture needle tube from rebounding excessively, so that inconvenience in use is avoided.
The front end face of the limiting convex ring is annularly provided with a circle of radiopaque developing ring.
Preferably, a side pipe for connecting with the liquid pressurizing device is connected to the side wall of the tail end of the extension hose body.
The tail end of the extension hose body is provided with a connector which can be opened and closed through a guide wire, the guide wire can be locked into a closed cavity after passing through the tail end of the hose body so as to provide liquid pressure, and the side pipe can be connected with a liquid pressurizing device.
Compared with the prior art, the utility model has the following beneficial effects: because the extension hose is soft, the hydraulic puncture device is conveniently sleeved in the soft sheath tube to be matched with the sheath tube to reach the part to be punctured, and then the part to be punctured can be punctured by the telescopic rigid puncture needle tube positioned in the front end lumen of the extension hose, so that the puncture operation is simple and convenient, and the sheath tube is not damaged; and when the guide wire is penetrated, the inner peripheral wall of the second perforation of the guide part is obliquely inwards arranged from the rear end to the front end, so that the guide wire is convenient to insert, and kink is not generated. After further optimization, the needle head is enabled to fix the hydraulic puncture device when contacting human tissues, so that the puncture operation is facilitated.
Drawings
Fig. 1 is a schematic sectional view showing a part of the structure of a hydraulic puncture device according to embodiment 1.
Fig. 2 is a schematic sectional view showing a part of the structure of the hydraulic puncture device of embodiment 2.
Fig. 3 is a schematic sectional view showing a part of the structure of the hydraulic puncture device of embodiment 3.
Fig. 4 is a schematic structural view of the hydraulic puncture device of embodiment 3.
Detailed Description
The utility model will be further elucidated with reference to the drawings and the specific embodiments
Example 1
As shown in fig. 1, a hydraulic puncturing device comprises an extension hose 1, a rigid puncturing needle tube 2 and a spring 3;
the rigid puncture needle tube 2 comprises a needle tip part 2-1 positioned at the axial front end and used for puncture, and a guide part 2-2 integrally arranged at the rear end of the needle tip part 2-1 and having an outer diameter larger than that of the needle tip part 2-1;
the extension hose 1 comprises a tube body 1-1 extending from front to back along the axial direction, a limiting convex ring 1-2 with a reduced inner diameter is arranged in a tube orifice at the front end of the tube body 1-1, and a through hole 1-3 capable of penetrating through the needle tip 2-1 is arranged in the center of the limiting convex ring 1-2;
the spring 3 is sleeved outside the needle point part 2-1 and is propped between the rear end of the limiting convex ring 1-2 and the front end of the guide part 2-2;
the needle tip 2-1 is provided with a first perforation 2-3 which is communicated with the front end part to the rear end part along the axial direction and used for penetrating the guide wire 4, the guide part 2-2 is provided with a second guide perforation 2-4 which is extended forwards from the rear end part and is coaxially communicated with the first perforation 2-3 and used for guiding the guide wire 4 to enter the first perforation 2-3, and the inner peripheral wall of the second perforation 2-4 is gradually reduced from the rear end to the front end to be connected with the first perforation 2-3; after the guide wire 4 is inserted into the extension hose 1, the guide wire can movably pass through the second perforation 2-4 and be arranged in the first perforation 2-3;
the outer wall of the guide part 2-2 of the rigid puncture needle tube 2 is arranged on the inner wall of the extension hose 1 in a sliding way.
When the puncture device is used, the puncture device is placed in the sheath tube, the puncture device reaches a puncture part under the guidance of the guide wire, then the guide wire is retracted into the puncture needle, the tail part of the extension hose is locked to form a closed cavity, the pressure pump is used for generating liquid pressure by injecting liquid, the rigid puncture needle tube is pushed to move forwards under the action of the hydraulic pressure, and the spring is compressed, so that the needle point part extends out of the front end pipe orifice of the extension hose, and the puncture of a target point is completed. After puncture is successful, the guide wire is sent into a target blood vessel, the pressurized liquid is pumped back to generate negative pressure, the rigid puncture needle tube is retracted to the original position under the action of the resilience force and the negative pressure of the spring, the puncture device is withdrawn, and then the subsequent operation can be performed through the guide wire and the like. Because of the cooperation of the extension hose and the telescopic rigid puncture needle tube for puncture, the puncture operation is simple and convenient, and the puncture and the damage to the blood vessel are not influenced by the bending of the blood vessel.
The extension hose of the hydraulic puncture device is soft, is convenient to be matched with a soft sheath tube for use, is convenient to puncture, and has a simple structure. And the inner peripheral wall of the second through hole 2-4 is obliquely inwards arranged from the rear end to the front end, so that the guide wire is convenient to insert.
Example 2
As shown in fig. 2, in order to avoid retracting the puncture device due to a reaction force during puncture, to fix the hydraulic puncture device and stabilize the puncture operation, the difference between this embodiment and embodiment 1 is that a first annular limiting groove 1-4 is annularly arranged on the outer peripheral wall of the front end portion of the extension hose 1, the hydraulic puncture device further comprises an annular balloon 5 sleeved in the first annular limiting groove 1-4 and a catheter 6 arranged at the rear side of the annular balloon 5 and extending backwards along the outer wall of the extension hose 1, the rear end of the annular balloon 5 is provided with a through hole two 5-1, and the through hole two 5-1 is communicated with the front port of the catheter 6.
According to the scheme, after the whole hydraulic puncture device is sent into place, the existing catheter inflates the balloon, so that the hydraulic puncture device is fixed, and the subsequent puncture operation is facilitated.
Example 3
As shown in fig. 3 and 4, in order to prevent excessive rebound of the needle, this embodiment is different from embodiment 1 in that the inner wall of the extension hose 1 is further fixedly provided with more than one limiting protrusion 7 which is disposed around the center of the extension hose 1 at intervals and is located at the rear side of the working position of the rigid puncture needle tube 2 and is used for limiting the backward limit position of the rigid puncture needle tube 2, the limiting protrusion 7 is made of a rigid material, and the inner wall of the limiting protrusion 7 extends from the rear end to the front end in a direction approaching to the center in an inclined manner, so that the rigid puncture needle tube 2 can be conveniently moved into the working position, and the rigid puncture needle tube 2 can be prevented from being moved backward and separated from the working position.
The limiting bulge 7 of the scheme is convenient for the rigid puncture needle tube to push forward, but can prevent the rigid puncture needle tube 2 from rebounding excessively, so that inconvenient use is avoided.
The front end face of the limiting convex ring 1-2 is annularly provided with a circle of radiopaque developing ring 8.
The side wall of the tail end of the tube body 1-1 of the extension hose 1 is connected with a side tube 9 used for being connected with a liquid pressurizing device.
The tail end of the tube body 1-1 of the extension hose 1 is provided with a connector 10 which is opened and closed by a guide wire, the guide wire can be locked into a closed tube cavity after passing through the connector at the tail end of the tube body 1-1 so as to provide liquid pressure, and the side tube 9 can be connected with a liquid pressurizing device.
The outer diameter of the extension tube of the embodiment is 6F, the rigid puncture needle tube is made of stainless steel, the length of the needle tip 2-1 is 15mm, the outer diameter is 19G, and the guide wire is a guide wire with the diameter of 0.035 in.
The utility model is not limited to the embodiments described above, but is intended to be limited to the following description of the preferred embodiments, given by way of example only, of the accompanying claims.
Claims (5)
1. A hydraulic puncturing device, characterized in that: comprises an extension hose (1), a rigid puncture needle tube (2) and a spring (3);
the rigid puncture needle tube (2) comprises a needle tip part (2-1) positioned at the axial front end and used for puncture, and a guide part (2-2) which is integrally arranged at the rear end of the needle tip part (2-1) and has an outer diameter larger than the outer diameter of the needle tip part (2-1);
the extension hose (1) comprises a tube body (1-1) extending from front to back along the axial direction, a limiting convex ring (1-2) with the inner diameter reduced is arranged in a tube orifice at the front end of the tube body (1-1), and a through hole I (1-3) capable of penetrating through the needle point part (2-1) is arranged in the center of the limiting convex ring (1-2);
the spring (3) is sleeved outside the needle tip (2-1) and is propped between the rear end of the limiting convex ring (1-2) and the front end of the guide part (2-2);
a first perforation (2-3) which is communicated with the front end part to the rear end part along the axial direction and is used for penetrating a guide wire (4) is arranged in the needle tip part (2-1), a second guide perforation (2-4) which extends forwards from the rear end part and is coaxially communicated with the first perforation (2-3) and is used for guiding the guide wire (4) to enter the first perforation (2-3) is arranged in the guide part (2-2), and the inner peripheral wall of the second perforation (2-4) is gradually reduced from the rear end to the front end to be connected with the first perforation (2-3); after the guide wire (4) is inserted into the extension hose (1), the guide wire can be movably penetrated into the first through hole (2-3) through the second through hole (2-4);
the outer wall of the guide part (2-2) of the rigid puncture needle tube (2) is arranged on the inner wall of the extension hose (1) in a sliding way.
2. A hydraulic puncturing device as claimed in claim 1, wherein: the outer peripheral wall of the front end part of the extension hose (1) is annularly provided with a first annular limiting groove (1-4), the hydraulic puncture device further comprises an annular balloon (5) sleeved in the first annular limiting groove (1-4) and a through pipe (6) arranged at the rear side of the annular balloon (5) and extending backwards along the outer wall of the extension hose (1), the rear end of the annular balloon (5) is provided with a second through hole (5-1), and the second through hole (5-1) is communicated with the front port of the through pipe (6).
3. A hydraulic puncturing device as claimed in claim 1, wherein: the inner wall of the extension hose (1) is also fixedly provided with more than one limiting protrusion (7) which is arranged around the center of the extension hose (1) at intervals and is positioned at the rear side of the working position of the rigid puncture needle tube (2) and used for limiting the backward limit position of the rigid puncture needle tube (2), the limiting protrusion (7) is made of rigid materials, and the inner wall of the limiting protrusion extends from the rear end to the front end in an inclined direction towards the direction close to the center, so that the rigid puncture needle tube (2) can conveniently enter the working position forwards, and the rigid puncture needle tube (2) can be prevented from moving backwards and separating from the working position.
4. A hydraulic puncturing device as claimed in claim 1, wherein: the front end face of the limiting convex ring (1-2) is annularly provided with a circle of radiopaque developing ring (8).
5. A hydraulic puncturing device as claimed in claim 1, wherein:
the tail end of the extension hose (1) body (1-1) is provided with a connector (10) which can be opened and closed through a guide wire, and the side wall of the tail end of the extension hose (1) body (1-1) is connected with a side pipe (9) which is used for being connected with a liquid pressurizing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321165355.7U CN220046009U (en) | 2023-05-15 | 2023-05-15 | Hydraulic puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321165355.7U CN220046009U (en) | 2023-05-15 | 2023-05-15 | Hydraulic puncture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220046009U true CN220046009U (en) | 2023-11-21 |
Family
ID=88754321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321165355.7U Active CN220046009U (en) | 2023-05-15 | 2023-05-15 | Hydraulic puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220046009U (en) |
-
2023
- 2023-05-15 CN CN202321165355.7U patent/CN220046009U/en active Active
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