CN213312775U - Tear type vascular sheath - Google Patents
Tear type vascular sheath Download PDFInfo
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- CN213312775U CN213312775U CN202020405849.8U CN202020405849U CN213312775U CN 213312775 U CN213312775 U CN 213312775U CN 202020405849 U CN202020405849 U CN 202020405849U CN 213312775 U CN213312775 U CN 213312775U
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- tearable
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- tear
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Abstract
The utility model provides a novel can tear type vascular sheath, including one can tear sheath pipe and an expansion pipe, can tear the sheath pipe by can tearing the sheath pipe body and can tear the sheath tube seat and constitute, can tear the top of sheath tube seat and be planar design, the finger is pressed and is prevented back the blood in the convenient art, and the expansion pipe comprises body and expansion tube seat, can tear sheath pipe and expansion pipe joint in order to be applicable to and need not the rotation and can separate the two. The utility model has the advantages that: the utility model has the advantages of simple and reasonable structure, the assembly locking is reliable, tears easily, convenient operation, can reduce the damage to blood vessel among the operation process, can tear the sheath pipe and use after using up, when waiting to withdraw from the expansion pipe, presses expansion tube socket both sides handle, and the fixture block of expansion pipe arm front end opens, realizes smoothly withdrawing.
Description
Technical Field
The utility model relates to an interventional diagnosis and treatment auxiliary medical instrument field, more specifically say and relate to a type vascular sheath can tear.
Background
The instruments such as catheter, stent, guide wire, electrode, etc. used for minimally invasive interventional therapy enter the target position from outside the body through blood vessel, and before all the instruments enter the blood vessel, a smooth effective channel must be established in the outside and under the skin of human body. The blood vessel sheath is a key apparatus for establishing the channel, and the main method is that the puncture needle penetrates into the blood vessel from the skin of the human body, the puncture guide wire is used for withdrawing the puncture needle after entering the blood vessel from the inner cavity of the puncture needle, the tear-off blood vessel sheath enters the blood vessel of the human body along the guide wire, and the guide wire is withdrawn. The establishment of the passage with the blood vessel of the human body from the outside is completed. The traditional vascular sheath does not need to be withdrawn midway until the operation is finished, and then the vascular sheath is withdrawn. In a partial interventional operation, for example, when a cardiac pacemaker is implanted, after an electrophysiology catheter or other instruments enter a human blood vessel, a blood vessel sheath needs to be withdrawn, but the rear section of the instrument which enters the human blood vessel is large, the blood vessel sheath cannot be directly withdrawn, and at the moment, the blood vessel sheath needs to be withdrawn and torn at the same time.
Along with intervention treatment's development, some problems have also appeared simultaneously in the current type vascular sheath that can tear open, tear on the market most sheath tube seats of sheath and expansion tube seat and adopt threaded connection's mode, when withdrawing from the expansion tube in the operation, need to separate expansion tube seat and sheath tube seat soon, the operation difficulty, waste time and energy, the screw thread of design on sheath tube seat can not effectively prevent in the art to return the blood.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects in the prior art and provides a tear-open type vascular sheath.
The purpose of the utility model is realized by the following technical scheme.
The utility model provides a novel can tear type vascular sheath, includes that one can tear sheath pipe and an expansion pipe, can tear the sheath pipe by the sheath pipe body of tearing that is connected and can tear the sheath pipe seat and constitute, the expansion pipe constitute by the expansion pipe body and the expansion pipe seat that are connected, can tear the sheath pipe seat with the expansion pipe seat joint is in order being applicable to and need not to rotate and can separate the two, just can tear the sheath pipe seat with the one end of expansion pipe seat joint is the plane.
Furthermore, the expansion pipe seat and the tearable sheath pipe seat can be clamped by rotating 90 degrees.
Further, can tear the sheath pipe with the expansion pipe passes through the buckle joint.
Furthermore, the top of the sheath tube capable of being torn is provided with a convex block.
Furthermore, an expansion pipe arm is arranged on a pipe seat of the expansion pipe, and a clamping block clamped with the convex block is arranged at the front end of the expansion pipe arm.
Furthermore, the expansion pipe arm is made of flexible materials.
Furthermore, the outer surface of the tearable sheath tube body is provided with a pair of symmetrical tearable seams which are convenient for tearing.
Further, the tearable sheath base is provided with two wing-shaped handles, and two tear grooves formed in the middle of the two wing-shaped handles correspond to the tear seams.
Further, the tearable sheath tube seat and the tearable sheath tube body, and the expandable tube body and the expandable tube seat are connected together through an injection molding process respectively.
Further, the end portions of the tearable sheath tube body and the expanding tube body are tapered, and the head portion is arc-shaped.
The utility model has the advantages that:
the utility model designs a clamping buckle type structure scheme, a sheath tube seat and an expansion tube seat are clamped by a buckle, when the expansion tube is withdrawn, a handle is pressed down, a clamp is opened, and the withdrawal is smooth;
the clamping of the expansion tube seat and the sheath tube seat can realize the clamping by rotating 90 degrees;
the plane design of the clamping position of the sheath tube seat is convenient for preventing blood return in the operation;
forming symmetrical tearing lines on the outer surface of the pipe to enable the pipe to be torn along an axial straight line;
the tearable sheath tube seat and the tearable sheath tube body are connected together through an injection molding process, so that the tearable sheath tube body and the tearable sheath tube seat which are difficult to fuse or bond with other materials can be firmly connected together;
the head parts of the tearable sheath tube and the expansion tube are tapered, and the head parts are arc-shaped, so that the damage to blood vessels or human tissues when the tearable sheath enters a human body is reduced.
The utility model has the advantages of simple and reasonable structure, the assembly locking is reliable, tears easily, convenient operation, can reduce the damage to blood vessel among the operation process, can tear the sheath pipe and use up after, when waiting to withdraw from the expansion pipe, presses two handles of expansion pipe arm, and the fixture block of expansion pipe arm front end opens, realizes smoothly withdrawing.
Drawings
FIG. 1 is a schematic view of the assembly structure of the present invention;
fig. 2 is a schematic structural view of the tearable sheath of the present invention;
FIG. 3 is a schematic structural view of the expanding tube of the present invention;
FIG. 4 is a schematic structural view of the tearable sheath base of the present invention;
in the figure:
1. the sheath tube can be torn open; 2. an expansion tube; 3. a dilation tube body; 4. expanding the tube seat; 5. an expansion tube arm;
6. a clamping block; 7. a raised block; 8. the sheath tube body can be torn; 9. the sheath tube seat can be torn open; 10. clamping the joint;
11. a wing-shaped handle; 12. a tearing groove; 13. and (4) a plane.
Detailed Description
The technical solution of the present invention is further explained by the following specific examples.
Example 1
As shown in fig. 1-4, a novel tearable vascular sheath comprises a tearable sheath 1 and an expansion tube 2, wherein the tearable sheath 1 comprises a tearable sheath 8 and a tearable sheath base 9, the expansion tube 2 comprises an expansion tube body 3 and an expansion base 4, the tearable sheath base 9 and the expansion base 4 are connected in a clamping manner so as to be suitable for being separated without rotation, one end of the tearable sheath base 9 connected in a clamping manner with the expansion base 4 is a plane 13, and the plane 13 is convenient for finger pressing to prevent blood return when in use.
The outer surface of the tearable sheath tube body 8 is provided with a pair of tear seams which are symmetrical and convenient to tear, so that the tube can be torn along an axial straight line, the tearable sheath tube seat 9 is provided with two wing-shaped handles 11, and two tear grooves 12 formed in the middle of the two wing-shaped handles 11 correspond to the tear seams; the tearable sheath tube seat 1 and the tearable sheath tube body 8 are connected together through an injection molding process, and the expansion tube body 3 and the expansion tube seat 4 are also connected through an injection molding process.
Example 2
As shown in fig. 1-4, a novel tearable sheath catheter comprises a tearable sheath catheter 1 and an expansion catheter 2, wherein the tearable sheath catheter 1 comprises a tearable sheath catheter body 8 and a tearable sheath catheter seat 9, the expansion catheter 2 comprises an expansion catheter body 3 and an expansion catheter seat 4, the tearable sheath catheter seat 9 is connected with the expansion catheter seat 4 in a clamping manner so as to be suitable for being separated without rotating, one end of the tearable sheath catheter seat 9 connected with the expansion catheter seat 4 in a clamping manner is a plane 13, the plane 13 is convenient for pressing by fingers to prevent blood return when in use, and the expansion catheter seat 4 and the tearable sheath catheter seat 9 can be connected in a clamping manner of rotating 90 degrees; the ends of the tube bodies of the sheath tube body 8 and the expansion tube 2 can be torn to be tapered, and the head parts are arc-shaped.
Can tear 8 external surfaces of sheath pipe and have a pair of symmetrical tear seam of being convenient for to tear, can tear and have two wing handles 11 on the sheath pipe seat 9 to two tear groove 12 that form in the middle of two wing handles 11 are corresponding with tearing the seam, can tear sheath pipe seat 1 and can tear sheath pipe 8 and link together through the technology of moulding plastics, and expansion pipe body 3 also is the technology of moulding plastics with expansion pipe seat 4 and is connected.
Example 3
As shown in fig. 1-4, a novel tearable sheath catheter comprises a tearable sheath catheter 1 and an expansion catheter 2, wherein the tearable sheath catheter 1 comprises a tearable sheath catheter body 8 and a tearable sheath catheter seat 9, the expansion catheter 2 comprises an expansion catheter body 3 and an expansion catheter seat 4, the tearable sheath catheter seat 9 is connected with the expansion catheter seat 4 in a clamping manner so as to be suitable for being separated without rotating, one end of the tearable sheath catheter seat 9 connected with the expansion catheter seat 4 in a clamping manner is a plane 13, the plane 13 is convenient for pressing by fingers to prevent blood return when in use, and the expansion catheter seat 4 and the tearable sheath catheter seat 9 can be connected in a clamping manner of rotating 90 degrees;
the outer surface of the tearable sheath tube body 8 is provided with a pair of tear seams which are symmetrical and convenient to tear, the tearable sheath tube seat 9 is provided with two wing-shaped handles 11, and two tear grooves 12 formed in the middle of the two wing-shaped handles 11 correspond to the tear seams;
the tearable sheath tube seat 1 and the tearable sheath tube body 8 are connected together through an injection molding process, and the expansion tube body 3 and the expansion tube seat 4 are also connected through the injection molding process; the ends of the sheath tube body 8 and the expansion tube body 3 can be torn to be gradually thinned, and the head is arc-shaped.
Can tear sheath pipe 1 and expansion pipe 2 and pass through the buckle joint, can tear the top of sheath pipe 1 and be equipped with protruding piece 7, be equipped with expansion tube arm 5 on the expansion tube socket 4, the front end of expansion tube arm 5 is equipped with the fixture block 6 with protruding piece 7 joint, and expansion tube arm 5 is flexible material. Tear sheath tube seat 9 and use buckle joint with expansion tube seat 4, when waiting to withdraw from expansion pipe 2, press expansion pipe arm 5, the fixture block 6 of expansion pipe arm 5 front end opens, makes the smooth-going separation of the two.
The working mode is as follows:
can tear sheath 1 and expansion pipe 2, before the operation, need insert into can tearing sheath 1 with expansion pipe 2 from can tearing sheath seat 9 top, make expansion pipe seat 4 and can tear sheath seat 9 and pass through protruding piece 7 and fixture block 6 joint locking. The guide wire exposed end which enters a puncture blood vessel penetrates into the head cavity of the expansion tube body 3 on the tear-off type blood vessel sheath which is reliably locked, the guide wire is fixed and is fixed, the sheath tube 1 can be torn off by pushing along the guide wire until the sheath tube 1 can be torn off and enters the blood vessel, the blood vessel sheath is fixed and is fixed, the guide wire is withdrawn, the expansion tube arm handle 12 is pinched off to release the locking of the expansion tube arm handle and the tear-off sheath tube 1, the sheath tube 1 can be fixed and torn off and is fixed, the expansion tube 2 is withdrawn, other instruments can be placed along the inner cavity of the tear-off sheath tube 1, when the sheath tube 1 needs to be withdrawn and can be torn off, the two wing-shaped handles 11 can be torn off while withdrawing, and.
The above description has been made in detail for the three embodiments of the present invention, but the above description is only for the preferred embodiment of the present invention, and should not be construed 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 (8)
1. A tear-open vascular sheath, comprising: the sheath tube comprises a tearable sheath tube body and a tearable sheath tube seat, the tearable sheath tube consists of the tearable sheath tube body and the tearable sheath tube seat which are connected, the expanding tube consists of the connected expanding tube body and the expanding tube seat, the tearable sheath tube seat and the expanding tube seat are clamped and connected so as to be suitable for separating the tearable sheath tube body and the expanding tube seat without rotating, and one end of the tearable sheath tube seat, which is clamped and connected with the expanding tube seat, is a plane; the pipe seat of the expansion pipe is provided with an expansion pipe arm, the front end of the expansion pipe arm is provided with a clamping block clamped with the convex block, and the expansion pipe arm is made of flexible materials.
2. The tearable vascular sheath of claim 1, wherein: the expansion pipe seat and the tearable sheath pipe seat can be clamped by rotating 90 degrees.
3. The tearable vascular sheath of claim 2, wherein: the sheath tube can be torn and the expansion tube is clamped through a buckle.
4. The tearable vascular sheath of claim 3, wherein: the top of the sheath tube capable of being torn is provided with a convex block.
5. The tearable vascular sheath of any one of claims 1 to 4, wherein: the outer surface of the tearable sheath tube body is provided with a pair of symmetrical tearable seams which are convenient for tearing.
6. The tearable vascular sheath of claim 5, wherein: the tearable sheath base is provided with two wing-shaped handles, and two tearable grooves formed in the middle of the two wing-shaped handles correspond to the tearable seams.
7. The tearable vascular sheath of claim 6, wherein: the tearable sheath tube seat and the tearable sheath tube body as well as the expansion tube body and the expansion tube seat are respectively connected together through an injection molding process.
8. The tearable vascular sheath of claim 7, wherein: the end parts of the tearable sheath tube body and the expanding tube body are gradually thinned, and the head part is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020405849.8U CN213312775U (en) | 2020-03-26 | 2020-03-26 | Tear type vascular sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020405849.8U CN213312775U (en) | 2020-03-26 | 2020-03-26 | Tear type vascular sheath |
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| Publication Number | Publication Date |
|---|---|
| CN213312775U true CN213312775U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020405849.8U Active CN213312775U (en) | 2020-03-26 | 2020-03-26 | Tear type vascular sheath |
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| CN (1) | CN213312775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265758A (en) * | 2020-03-26 | 2020-06-12 | 天津塞科凯尔科技有限公司 | Tear type vascular sheath |
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2020
- 2020-03-26 CN CN202020405849.8U patent/CN213312775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111265758A (en) * | 2020-03-26 | 2020-06-12 | 天津塞科凯尔科技有限公司 | Tear type vascular sheath |
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Address after: No.10 Yuanhe Road, development zone, Wuqing District, Tianjin Patentee after: Tianjin Demak Medical Instrument Co.,Ltd. Address before: No.10 Yuanhe Road, development zone, Wuqing District, Tianjin Patentee before: Tianjin dimak Pharmaceutical Technology Co.,Ltd. |