CN217525519U - Duodenum support and medical instrument - Google Patents
Duodenum support and medical instrument Download PDFInfo
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- CN217525519U CN217525519U CN202220416385.XU CN202220416385U CN217525519U CN 217525519 U CN217525519 U CN 217525519U CN 202220416385 U CN202220416385 U CN 202220416385U CN 217525519 U CN217525519 U CN 217525519U
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Abstract
The utility model belongs to the technical field of the medical instrument technique and specifically relates to a duodenum support and medical instrument. The utility model provides a duodenum support, include: the stent comprises a stent body and a membrane tube connected to one end of the stent body; the stent body is in a W-shaped ring shape and can contract and expand along the radial direction of the axis; along the axial direction of the bracket body, the outer diameters of the two ends of the bracket body are smaller than the outer diameter of the middle of the bracket body. The support body is the contraction state before putting into duodenum ball preset position, the support body is the expansion state when releasing preset position, after getting into the duodenum ball completely and when being the expansion state, it is close with duodenum ball form, can laminate with the duodenum ball, make things convenient for the support in the location of duodenum ball, and be provided with two sets of thorn rings of height on the support, can make the support body be difficult for taking place the displacement in the duodenum ball, more can not break away from the duodenum ball, moreover, the steam generator is simple in structure, high stability, and the treatment effect is improved.
Description
Technical Field
The utility model belongs to the technical field of medical instrument technique and specifically relates to a duodenum support and medical instrument.
Background
Currently, the treatment modalities for obesity mainly include: lifestyle modification, medications, and gastric bypass surgery, but generally the first two are not ideal, while gastric bypass surgery is relatively effective.
In the gastric bypass operation, a flexible catheter made of polymer material is implanted into the duodenum, and the flexible catheter is generally fixed to the duodenal bulb through a stent. The existing duodenal stent product is mainly a W-shaped stent, the whole outer contour of the stent is in a cylinder shape, a circle of barb is extended out of the cylinder, and the fixation is realized by the barb piercing on the inner wall of a human duodenal bulb.
Because the human duodenal bulb is mainly in an inclined ellipsoid shape when the stent is implanted, the cylindrical stent is incompletely attached to the duodenal bulb when being implanted and has a certain inclination angle, and certain displacement risk exists when the tissues of a human body wriggle.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a duodenal bulb support and medical instrument to solve because the wriggling of human tissue, the duodenal bulb support is not totally leaded to the technical problem who shifts in the laminating of duodenum ball.
The utility model provides a pair of duodenum support, include: the stent comprises a stent body and a membrane tube connected to one end of the stent body;
the stent body is in a W-shaped ring shape and can contract and expand along the radial direction of an axis;
along the axis direction of the bracket body, the outer diameters of the two ends of the bracket body are smaller than the outer diameter of the middle of the bracket body.
As a further technical scheme, the outer diameter of the bracket body is gradually increased from two ends to the middle.
As a further technical scheme, the support body is spherical.
As a further technical scheme, the membrane tube is funnel-shaped.
As a further technical scheme, the stent further comprises a contraction wire, wherein the contraction wire is arranged on the stent body and used for contracting the stent body along the radial direction of the axis of the stent body.
As a further technical scheme, the stent further comprises a plurality of stent pull rings, wherein the plurality of stent pull rings are circumferentially arranged on the stent body and are positioned at the maximum outer diameter position of the stent body;
the contraction wire penetrates through the plurality of support pull rings.
As a further technical scheme, the bracket further comprises anchoring thorns, wherein the anchoring thorns are arranged on the bracket body and used for fixing the bracket body.
As a further technical solution, the anchoring thorn comprises a first thorn body and a second thorn body;
the first thorn body with the second thorn body interconnect, and follow the axis direction of support body, the first thorn body is towards the support body is connected with the one end slope of membrane tube, the second thorn body is towards the other end slope of support body.
As a further technical scheme, the anchoring thorns are provided in plurality, and the plurality of anchoring thorns are arranged along the circumferential direction of the bracket body to form a thorny ring.
As a further technical scheme, the two groups of the thorn rings are arranged, along the circumferential direction of the bracket body, the anchoring thorn of one group of the thorn rings is fixed on one of the two adjacent bracket pull rings, and the anchoring thorn of the other group of the thorn rings is fixed on one side of the other bracket pull ring, which is far away from the membrane tube.
The utility model provides a pair of medical equipment, which comprises the duodenal stent.
Compared with the prior art, the utility model provides a pair of duodenum support and medical instrument have the technical advantage do:
the utility model provides a duodenum support, include: the stent comprises a stent body and a membrane tube connected to one end of the stent body; the stent body is in a W-shaped ring shape and can contract and expand along the radial direction of the axis; along the axis direction of the bracket body, the outer diameters of the two ends of the bracket body are smaller than the outer diameter of the middle of the bracket body.
The stent body is the contraction state before putting into duodenum ball preset position, and the stent body is the expansion state when releasing preset position, and when entering duodenum ball completely after and when being the expansion state, it is close with duodenum ball form, can laminate with duodenum ball, even the wriggling of human tissue, the stent body also is difficult for taking place the displacement in duodenum ball, more can not break away from duodenum ball, simple structure, and stability is high, improves treatment.
The utility model provides a medical appliance, including above-mentioned duodenum support, from this, the technical advantage and the effect that its reached include the technical advantage and the effect that above-mentioned duodenum support reached, do not describe here in detail.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a duodenal stent with a membrane tube according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a duodenal stent without a membrane tube according to an embodiment of the present invention.
Icon: 1-a stent body; 2-a membrane tube; 3-a shrink thread; 4-support ring pull; 5-anchoring thorns; 51-a first stab body; 52-second stab body.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
The specific structure is shown in fig. 1 and fig. 2.
The present embodiments provide a duodenal stent, comprising: the stent comprises a stent body 1 and a membrane tube 2 connected to one end of the stent body 1;
the stent body 1 is in a W-shaped ring shape and can contract and expand along the radial direction of an axis;
along the axis direction of the bracket body 1, the outer diameters of the two ends of the bracket body 1 are smaller than the outer diameter of the middle part.
The stent body 1 is in a contraction state before being placed in a preset duodenal bulb position, the stent body 1 is in an expansion state when being released to the preset position, the stent body is close to the duodenal bulb shape when completely entering the duodenal bulb position and being in the expansion state, and can be attached to the duodenal bulb position, so that the stent body 1 is not easy to displace in the duodenal bulb position even if the tissue of a human body peristalsis, and can not be separated from the duodenal bulb position.
In this embodiment, the stent body 1 is made of biocompatible metal wires, polymer material wires or degradable material wires, has certain elasticity, can deform along with the peristalsis of human tissues, has certain supporting force, and can be fixed on the duodenal bulb to prevent gliding.
In the optional technical scheme of this embodiment, the outer diameter of the stent body 1 gradually increases from the two ends to the middle.
In this embodiment, the outer diameter of the stent body 1 is increased from one end to the other end and then decreased, so that when the stent body 1 is in an expanded state, it can be formed into a spherical shape, an ellipsoidal shape or a spindle shape, which can be closer to the shape of the duodenal bulb, and has a better fitting effect and higher stability.
In the preferred embodiment, the stent body 1 is spherical, so that the shape of the stent body is the closest to that of a duodenal bulb, the attaching effect is the best, and the stability is the highest.
Among the optional technical scheme of this embodiment, membrane tube 2 is hopper-shaped, conveniently is connected with 1 cooperation of spherical support body, conveniently makes more chyme enter simultaneously.
In the optional technical scheme of this embodiment, still include shrink wire 3, shrink wire 3 sets up on support body 1 for along support body 1 radial shrink support body 1 of support body 1 axis.
In this embodiment, the contraction wire 3 is connected to the stent body 1 and is located outside, and the contraction wire 3 can take out and recover the stent body 1 from the inside of the body through the recoverer or the grasper. When the contraction wire 3 is pulled in, the whole bracket body 1 is contracted along the radial direction of the axis, enters an endoscope transparent cap or a specific recovery device and is taken out from the alimentary canal of a human body along with the endoscope. Wherein, the contraction thread 3 can be made of PE, nylon, terylene and other materials meeting the biocompatibility requirement.
In an optional technical scheme of the embodiment, the stent further comprises a plurality of stent pull rings 4, wherein the plurality of stent pull rings 4 are circumferentially arranged on the stent body 1 and are positioned at the maximum outer diameter position of the stent body 1; the contraction wire 3 is arranged in the plurality of bracket pull rings 4 in a penetrating way.
In this embodiment, the stent body 1 includes a plurality of V-shaped units, and the stent pull rings 4 may be disposed on two opposite V-shaped units of the stent body 1, or may be disposed on four V-shaped units, wherein the four V-shaped units are opposite to each other two by two.
This embodiment is preferred, support body 1 includes five V type units, the biggest department of external diameter on two limits of every V type unit all is provided with support pull ring 4, when support body 1 is whole to be spherical, support pull ring 4 is located the centre on two limits of every V type unit, so, when drawing into shrink line 3, every limit of every V type unit all atress, whole atress is balanced, make support body 1 shrink effect better, simple structure preparation is convenient simultaneously, shrink line 3 conveniently wears to establish on support pull ring 4 simultaneously, simple to operate is swift.
In the optional technical scheme of this embodiment, still include anchoring thorn 5, anchoring thorn 5 sets up on support body 1 for fixed support body 1.
In this embodiment, anchoring thorn 5 is fixed on support body 1 and is located support body 1's outside, when support body 1 is the expansion state in the duodenum ball, play the supporting role, support body 1 fixes anchoring thorn 5 in the duodenum ball through the holding power of radial expansion this moment, make support body 1 fix in the duodenum ball, also can not be relative duodenum ball displacement under the peristaltic circumstances of human tissue, further improve the stability of support body 1 in the duodenum ball, improve treatment.
Preferably, the anchoring spine 5 is fixed on the pull ring 4 of the stent, so that the stent is convenient to fix, and meanwhile, when the stent body 1 expands, the anchoring spine 5 can be firstly fixed by contacting with a duodenal bulb.
In an optional technical solution of this embodiment, the anchoring thorn 5 includes a first thorn body 51 and a second thorn body 5;
the first thorn body 51 and the second thorn body 52 are connected with each other, and along the axial direction of the bracket body 1, the first thorn body 51 inclines towards one end of the bracket body 1 connected with the membrane tube 2, and the second thorn body 52 inclines towards the other end of the bracket body 1.
In this embodiment, one end of the first thorn body 51 is connected with one end of the second thorn body 52 to form a V-shaped structure, and is fixed on the stent body 1, and along the axis direction of the stent body 1, the other end of the first thorn body 51 is connected with one end of the membrane tube 2 towards the stent body 1, the other end of the second thorn body 52 is towards the other end of the stent body 1 which is not connected with the membrane tube 2, so that the first thorn body 51 and the second thorn body 52 are inclined, and thus, when the first thorn body 51 and the second thorn body 52 are fixed in the duodenal bulb, the support body 1 is limited along the two sides of the axis direction respectively, and the axial displacement of the stent body 1 can be effectively prevented, and the stability of the stent body 1 is improved.
Specifically, an included angle is formed between the first thorn body 51 and the second thorn body 52, namely, an included angle is formed between the V-shaped structures, wherein the included angle is greater than 90 ° and less than 180 °. Thus, the first thorn body 51 and the second thorn body 52 are respectively better to the spacing effect of the support body 1 along the both sides of the axis direction.
In the preferred embodiment, the angle between the first thorn body 51 and the bracket body 1 is the same as the angle between the second thorn body 5 and the bracket body 1, and is greater than or equal to 40 °, so that the limiting effect can be further improved, and the stability of the bracket body 1 is increased.
In an optional technical solution of this embodiment, the anchoring thorn 5 is provided in plurality, and the plurality of anchoring thorns 5 are provided along the circumferential direction of the stent body 1 to form a thorn ring. That is, the plurality of anchoring spines 5 are arranged along the circumferential direction of the stent body 1, and when the stent body 1 is expanded, the plurality of anchoring spines 5 are fixed with the duodenal bulb part in the circumferential direction, so that the fixing effect of the stent body 1 is improved.
In the optional technical scheme of the embodiment, two groups of the barbed rings are arranged, along the circumferential direction of the stent body 1, the anchoring barbs 5 of one group of the barbed rings are fixed on one of the two adjacent stent pull rings 4, and the anchoring barbs 5 of the other group of the barbed rings are fixed on one side of the other stent pull ring 4 away from the membrane tube 2.
In this embodiment, two groups of thorn rings respectively have five anchoring spines 5, and each side of the five V-shaped units has a support pull ring 4, so ten support pull rings 4 form a ring shape, wherein five anchoring spines 5 in one group of thorn rings are connected with five spaced support pull rings 4 in the ten support pull rings 4, that is, connected with the support pull rings 4 on the same side of the five V-shaped units, and meanwhile, five anchoring spines 5 in the other group of thorn rings are connected with the side of the other side of the five V-shaped units, and are located on one side, away from the membrane tube 2, of the five support pull rings 4 which are spaced in the ten pull rings and are not connected with the anchoring spines 5. So, two sets of thorn rings are fixed with the duodenum ball simultaneously, make support body 1 stable, and anchoring thorn 5 all forms crisscross distribution in support body 1's axial and footpath simultaneously, all has anchoring thorn 5 on every edge of every V type unit promptly, and anchoring thorn 5 on every edge of every V type unit all has the interval in axial and footpath, makes support body 1 prevent the displacement effect better in axial and footpath.
The medical device provided by the embodiment comprises the duodenal stent, so that the technical advantages and effects achieved by the medical device comprise the technical advantages and effects achieved by the duodenal stent, and the technical advantages and effects are not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (11)
1. A duodenal stent, comprising: the stent comprises a stent body (1) and a membrane tube (2) connected to one end of the stent body (1);
the stent body (1) is in a W-shaped ring shape and can contract and expand along the radial direction of an axis;
along the axis direction of the support body (1), the outer diameters of two ends of the support body (1) are smaller than the outer diameter of the middle of the support body.
2. Duodenum stent according to claim 1, wherein the outer diameter of said stent body (1) is gradually increased from both ends to the middle.
3. Duodenal stent according to claim 2, characterized in that the stent body (1) is spherical.
4. The duodenal stent according to claim 3, characterized in that the membrane tube (2) is funnel-shaped.
5. The duodenal stent according to claim 2, characterized by further comprising a contraction wire (3), wherein the contraction wire (3) is arranged on the stent body (1) and used for contracting the stent body (1) in a radial direction of the stent body (1) axis.
6. The duodenal stent of claim 5, further comprising a plurality of stent pull rings (4), wherein the plurality of stent pull rings (4) are circumferentially arranged on the stent body (1) and are located at the maximum outer diameter of the stent body (1);
the contraction wire (3) penetrates through the plurality of support pull rings (4).
7. Duodenum stent according to claim 6, further comprising an anchoring spike (5), said anchoring spike (5) being arranged on said stent body (1) for fixing said stent body (1).
8. Duodenum stent according to claim 7, wherein said anchoring spur (5) comprises a first spur body (51) and a second spur body (52);
the first thorn body (51) and the second thorn body (52) are connected with each other, and along the axial direction of the support body (1), the first thorn body (51) inclines towards one end of the support body (1) connected with the membrane tube (2), and the second thorn body (52) inclines towards the other end of the support body (1).
9. Duodenal stent according to claim 8, characterized in that the anchoring spines (5) are provided in plurality, and in that the plurality of anchoring spines (5) are provided in circumferential direction of the stent body (1) to form a spine ring.
10. Duodenum stent according to claim 9, characterized in that two sets of puncture rings are provided, the anchoring puncture (5) of one set of puncture rings being fixed to one of the two adjacent stent pull rings (4) and the anchoring puncture (5) of the other set of puncture rings being fixed to the side of the other stent pull ring (4) away from the membrane tube (2) in the circumferential direction of the stent body (1).
11. A medical device comprising a duodenal stent of any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220416385.XU CN217525519U (en) | 2022-02-28 | 2022-02-28 | Duodenum support and medical instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220416385.XU CN217525519U (en) | 2022-02-28 | 2022-02-28 | Duodenum support and medical instrument |
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| CN217525519U true CN217525519U (en) | 2022-10-04 |
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| CN202220416385.XU Active CN217525519U (en) | 2022-02-28 | 2022-02-28 | Duodenum support and medical instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116036482A (en) * | 2023-01-28 | 2023-05-02 | 杭州糖吉医疗科技有限公司 | Magnetic resonance self-control thermal ablation support and method thereof |
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2022
- 2022-02-28 CN CN202220416385.XU patent/CN217525519U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116036482A (en) * | 2023-01-28 | 2023-05-02 | 杭州糖吉医疗科技有限公司 | Magnetic resonance self-control thermal ablation support and method thereof |
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