CN204092788U - For the cannulation of venae cava that heart is performed the operation again - Google Patents
For the cannulation of venae cava that heart is performed the operation again Download PDFInfo
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- CN204092788U CN204092788U CN201420520060.1U CN201420520060U CN204092788U CN 204092788 U CN204092788 U CN 204092788U CN 201420520060 U CN201420520060 U CN 201420520060U CN 204092788 U CN204092788 U CN 204092788U
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- cannulation
- heart
- vein
- conduction hole
- insertion end
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Abstract
The utility model discloses a kind of cannulation of venae cava of again performing the operation for heart, belong to a kind of clinical medicine operating theater instruments, comprise body, described body is provided with the insertion end and external end that are interconnected, described insertion end is provided with at least one conduction hole, and the outside of described body is also set with umbrella snare.After intubate inserts vein, vein inwall can be propped up at vein inner chamber by umbrella snare, thus prevent venous blood from passing back into atrium because vein inwall shrinks extruding, cause unnecessary malpractice, and the tinsel reinforcing line on inboard wall of tube body also makes intubate have the advantage of anti-extrusion, bend resistance, safe and reliable, simultaneously a kind of cannulation of venae cava structure of again performing the operation for heart provided by the utility model is simple, be suitable for suitability for industrialized production, be easy to promote.
Description
Technical field
This utility model relates to a kind of clinical medicine operating theater instruments, and in particular, this utility model relates generally to a kind of cannulation of venae cava of again performing the operation for heart.
Background technology
Extensive adhesion, especially caval vein place, atrium one in patient's pericardial cavity that heart is performed the operation again, operation need set up extracorporeal circulation again.When setting up extracorporeal circulation, need dissociate completely superior vena cava, postcava and right room are so that superior vena cava, inferior vena cava cannula and cuff.Due to superior and inferior vena cave and the extensive adhesion in right room place, need dissect with shears, electric knife sharp property separation+blunt separation, require great effort very much, time-consuming, and because of not setting up extracorporeal circulation, just in case above-mentioned broken, may cause massive hemorrhage, death is restrained very high.The venous cannulation setting up cardiopulmonary bypass surgery clinical practice at current known department of cardiac surgery has two kinds, one is the cannulation of venae cava not with reinforcing line, and when this kind of intubate uses, body easily produces discounting phenomenon, cause blood flow obstruction, corrective surgery risk can be added like this.Its two, be the cannulation of venae cava of band reinforcing line structure, be bonded with drainage head in intubate insertion end, the drainage head due to abutting edge comes off risk, not only there is potential safety hazard, has a strong impact on art and operate, but also the life of entail dangers to patient.Thus be necessary to do further improvement for aforesaid cardiac chambers venous cannulation structure.
Utility model content
One of the purpose of this utility model is for above-mentioned deficiency, a kind of cannulation of venae cava of again performing the operation for heart is provided, venous blood is easily made to reflux to expect to solve cannulation of venae cava in prior art, and vein extruding is subject to after in intubate insertion vein, easily make the technical problems such as drainage head comes off.
For solving above-mentioned technical problem, this utility model by the following technical solutions:
A kind of cannulation of venae cava of again performing the operation for heart provided by the utility model, comprise body, described body is provided with the insertion end and external end that are interconnected, and described insertion end is provided with at least one conduction hole, and the outside of described body is also set with umbrella snare.
As preferably, further technical scheme: the opening of described umbrella snare is towards the external end of body.
Further technical scheme is: described insertion end is round and smooth taper.
Further technical scheme is: described conduction hole is multiple, and the first conduction hole near the insertion end being positioned at body is for circular or oval, and the second conduction hole being positioned at the first conduction hole rear portion is tetragon.
Further technical scheme is: the inwall of described body is also provided with tinsel reinforcing line.
Further technical scheme is: described body is smooth excessiveness and the not identical round tubular body of each several part diameter.
Compared with prior art, one of the beneficial effects of the utility model are: after intubate inserts vein, vein inwall can be propped up at vein inner chamber by umbrella snare, thus prevent venous blood from passing back into atrium because vein inwall shrinks extruding, cause unnecessary malpractice, and the tinsel reinforcing line on inboard wall of tube body also makes intubate have the advantage of anti-extrusion, bend resistance, safe and reliable, simultaneously a kind of cannulation of venae cava structure of again performing the operation for heart provided by the utility model is simple, be suitable for suitability for industrialized production, be easy to promote.
Accompanying drawing explanation
Fig. 1 is the structural representation for illustration of this utility model embodiment;
Fig. 2 is the structural representation of umbrella snare in another embodiment of this utility model;
In figure, 1 be body, 11 be insertion end, 12 be external end, 2 be umbrella snare, 4 be tinsel reinforcing line for conduction hole, 21 to be the first conduction hole, 22 be the second conduction hole, 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is further elaborated.
Shown in figure 1, an embodiment of the present utility model is a kind of cannulation of venae cava of again performing the operation for heart, comprise body 1, body 1 is provided with the insertion end 11 and external end 12 that are interconnected, described insertion end 11 is provided with at least one conduction hole 2, and the outside of body 1 also should be set with umbrella snare 3 simultaneously.Preferably, for promoting anti-extrusion and the bend resistance characteristic of body 1, also tinsel reinforcing line 4 can be set up on the inwall of body 1.
Above-mentioned tubular body 1 is preferably set to smooth excessiveness and the not identical round tubular body of each several part diameter.
In the present embodiment, after intubate inserts vein, vein inwall can be propped up at vein inner chamber by umbrella snare 3, thus prevent venous blood from passing back into atrium because vein inwall shrinks extruding, cause unnecessary malpractice, and the tinsel reinforcing line 4 on inboard wall of tube body also makes intubate have the advantage of anti-extrusion, bend resistance, safe and reliable.
As Fig. 1 and illustrated in fig. 2, direction about above-mentioned umbrella snare 3 is arranged, preferably by the external end of the direction of its opening towards body 1, can ensure that intubate can be inserted in vein smoothly like this, simultaneously under such object, above-mentioned insertion end 11 is also specifically set to round and smooth taper by inventor.
Shown in Fig. 1, in the embodiment that this utility model is more preferably for technical solution problem, for increasing the flow of intubate medium-sized vein blood, be convenient to drain, can above-mentioned conduction hole 2 be set to multiple, and the first conduction hole 21 near the insertion end 11 being positioned at body 1 is set to circle or ellipse, then the second conduction hole 22 being positioned at the first conduction hole 21 rear portion is set to tetragon (as rectangle).
In addition, above-mentioned tubular body 1 and umbrella snare 3 all adopt the material of flexible rubber-like (such as PVC polrvinyl chloride) to be processed into.
The above-mentioned preferred embodiment of this utility model in actual use, as long as can right atrium be seen, then on right atrium, cut an osculum, after intubate is sent into right room, then send into caval vein further, now be greater than caval vein internal diameter at the external diameter of umbrella snare 3, and have certain tension force, when intubate enters caval vein by right room, intravenous wall can be propped up in caval vein, thus the backflow of block venous blood, and then doctor is facilitated to carry out operation on heart.And utility model is in terms of existing technologies, and also tool has the following advantages:
1) this operating procedure of adhesion be separated between right atrium, caval vein, pericardium is eliminated.
2) free superior vena cava, postcava overlap blocking-up and be with this operating procedure is eliminated.
3) there is the cannulation of venae cava that anti-extrusion, bend resistance, drain are unobstructed and safe and reliable.
4) body adopts PVC material, and its transparency is good, is easy to observe blood circumstance and operation, safe and reliable.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although be described this utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (6)
1. a cannulation of venae cava of again performing the operation for heart, comprise body (1), it is characterized in that: described body (1) is provided with the insertion end (11) and external end (12) that are interconnected, described insertion end (11) is provided with at least one conduction hole (2), and the outside of described body (1) is also set with umbrella snare (3).
2. cannulation of venae cava of again performing the operation for heart according to claim 1, is characterized in that: the opening of described umbrella snare (3) is towards the external end (12) of body (1).
3. cannulation of venae cava of again performing the operation for heart according to claim 1, is characterized in that: described insertion end (11) is in round and smooth taper.
4. the cannulation of venae cava of again performing the operation for heart according to claims 1 to 3 any one, it is characterized in that: described conduction hole (2) is for multiple, and the first conduction hole (21) near the insertion end (11) being positioned at body (1) is for circular or oval, the second conduction hole (22) being positioned at the first conduction hole (21) rear portion is tetragon.
5. cannulation of venae cava of again performing the operation for heart according to claim 1, is characterized in that: the inwall of described body (1) is also provided with tinsel reinforcing line (4).
6. according to claim 1 or 5 for the cannulation of venae cava that heart is performed the operation again, it is characterized in that: described body (1) is for smooth excessiveness and the not identical round tubular body of each several part diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520060.1U CN204092788U (en) | 2014-09-11 | 2014-09-11 | For the cannulation of venae cava that heart is performed the operation again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520060.1U CN204092788U (en) | 2014-09-11 | 2014-09-11 | For the cannulation of venae cava that heart is performed the operation again |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204092788U true CN204092788U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420520060.1U Expired - Fee Related CN204092788U (en) | 2014-09-11 | 2014-09-11 | For the cannulation of venae cava that heart is performed the operation again |
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| CN (1) | CN204092788U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106377829A (en) * | 2016-10-08 | 2017-02-08 | 江苏省人民医院 | Vena cava drainage tube with two blocking cuffs |
| CN108025161A (en) * | 2015-08-28 | 2018-05-11 | 心脏器械股份有限公司 | The expansion delivery system of medical treatment device |
| CN110215554A (en) * | 2019-06-19 | 2019-09-10 | 黎明职业大学 | A kind of hydrotherapeutics machines based on image recognition |
| CN113786549A (en) * | 2020-05-28 | 2021-12-14 | 美迪纳有限公司 | A intubate for percutaneous wicresoft vena cava intubate art |
-
2014
- 2014-09-11 CN CN201420520060.1U patent/CN204092788U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108025161A (en) * | 2015-08-28 | 2018-05-11 | 心脏器械股份有限公司 | The expansion delivery system of medical treatment device |
| CN108025161B (en) * | 2015-08-28 | 2020-06-19 | 心脏器械股份有限公司 | Dilation delivery system for medical devices |
| US11058851B2 (en) | 2015-08-28 | 2021-07-13 | Heartware, Inc. | Dilation delivery system for a medical device |
| CN106377829A (en) * | 2016-10-08 | 2017-02-08 | 江苏省人民医院 | Vena cava drainage tube with two blocking cuffs |
| CN110215554A (en) * | 2019-06-19 | 2019-09-10 | 黎明职业大学 | A kind of hydrotherapeutics machines based on image recognition |
| CN110215554B (en) * | 2019-06-19 | 2023-05-05 | 黎明职业大学 | Hydrotherapy machine based on image recognition |
| CN113786549A (en) * | 2020-05-28 | 2021-12-14 | 美迪纳有限公司 | A intubate for percutaneous wicresoft vena cava intubate art |
| CN113786549B (en) * | 2020-05-28 | 2024-04-12 | 美迪纳有限公司 | Cannula for percutaneous minimally invasive vena cava catheterization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20150911 |
|
| EXPY | Termination of patent right or utility model |