CN110201293A - A kind of hangnail circle, capsule component, capsule conveying and fixed device - Google Patents

Abstract

The invention discloses a barb ring, a capsule assembly, and a capsule delivery and fixing device, comprising a capsule assembly movably connected to a bracket carrier through steel wires, the front end of the bracket carrier is connected to the head end through a catheter, and the inside of the head end is It has a sealed cavity, and an air extraction hole is arranged on the head end, and the air extraction hole communicates with the sealed cavity; a handle is connected to the front end of the head end, and a pull button is slidably connected to the handle, and the end of the steel wire is connected to the pull The buckle is fixedly connected; the capsule assembly includes a PH capsule, the front end of the PH capsule is connected with a lower cover, the lower cover is provided with a cavity, and a barbed ring is embedded at the upper end of the inner wall of the cavity, and the cavity and the inner wall of the catheter The cavity, the sealing cavity and the air pumping hole are connected; the barb ring includes an annular body, the inner ring of the annular body has at least two barbs distributed along its circumference, and the barbs are inclined inward along the axis of the annular body and into the cavity. The overall structure is simple and easy to use.

Description

Barb ring, capsule assembly, capsule delivery and fixing device

technical field

The invention relates to the technical field of medical devices, in particular to a barb ring, a capsule assembly, and a capsule delivery and fixing device.

Background technique

Reflux esophagitis (RE) is an inflammatory lesion of the esophagus caused by the reflux of gastric and duodenal contents into the esophagus. Endoscopically, the damage of the esophageal mucosa is manifested as esophageal erosion and/or esophageal ulcer. Reflux esophagitis can occur in people of any age, and the incidence in adults increases with age. The global incidence rate has been on the rise in the past two decades. Middle-aged and elderly people, obesity, smoking, drinking, and high mental stress are high-risk groups for reflux esophagitis. The method of treating reflux esophagitis usually adopts the treatment method of taking medicine or fixing the pH capsule in the human esophagus, and the treatment method of directly fixing the pH capsule in the human esophagus is better than taking medicine.

At present, the patent with the publication number CN102247175 discloses a delivery device for implantable monitors. The delivery device is to form a vacuum in the gap of the PH capsule, and the esophagus tissue enters the gap of the PH capsule under the action of the pressure difference. Then push the wire to push the anchoring element into the esophageal tissue in the gap of the PH capsule, and the pulling wire makes the PH capsule detach from the delivery device under the action of the actuator, which realizes the release and fixation of the PH capsule in the esophagus. However, on the one hand, the overall structure of the delivery device is complex, resulting in a cumbersome assembly process, which virtually increases the cost. On the other hand, when the delivery device is used, it is necessary to add a push wire to push the anchor element into the esophagus tissue to fix the PH capsule, and then Carrying out the release operation of the PH capsule increases the resistance in the pumping process and the doctor's operation steps, which is inconvenient to use.

Contents of the invention

Aiming at the existing technical problems, the purpose of the present invention is to provide a capsule delivery and fixing device with simple structure and convenient use.

In order to realize the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

A barb ring includes an annular body, at least two barbs are distributed along the inner ring of the annular body along its circumference, and the barbs are arranged obliquely inwardly along the axis of the annular body.

In this technical solution, the barbs are set to fix the esophageal tissue after the esophageal tissue enters, which is very convenient to use.

A capsule assembly, comprising a PH capsule, the front end of the PH capsule is connected with a lower cover, the lower cover is provided with a mold cavity, the opening of the mold cavity faces upward, and the annular body is embedded in the inner wall of the mold cavity At the upper end, the barbs extend into the mold cavity, and the mold cavity communicates with the outside world through the air hole.

Preferably, an upper cover is provided on the upper end of the lower cover, the upper cover is arranged coaxially with the annular body and the lower cover, and the central through hole of the upper cover communicates with the cavity.

A capsule delivery and fixing device, comprising the flexible connection of the capsule assembly to the bracket carrier through steel wires, the front end of the bracket carrier is connected to the head end through a catheter, and the head end has a sealed cavity inside. An air extraction hole is also provided on the head end, the air extraction hole communicates with the sealing cavity, and the cavity communicates with the inner cavity of the catheter, the sealing cavity and the air extraction hole;

A handle is connected to the front end of the head end, and a pull buckle is slidably connected to the handle. One end of the steel wire is movably installed on the capsule assembly and the bracket carrier, and the other end is fixed to the pull buckle connect.

With this technical scheme, when in use, the capsule conveying and fixing device is inserted into the esophagus, and then air is pumped at the air pumping hole, and the tissue in the esophagus enters the cavity of the lower cover under the action of the pressure difference, and after a few minutes of air pumping Pull the buckle to move forward, driving the steel wire to move forward. At the same time, because the barbs of the barb ring are set obliquely, the tissue in the esophagus will be stuck in the cavity, so the capsule assembly will continue to be stuck in the esophagus when the steel wire moves up. , move the bracket carrier, catheter, head end and hand-held part out of the esophageal tissue as a whole, and complete the delivery and fixation of the capsule assembly. After the negative pressure is formed by pumping air, you only need to pull up the steel wire to release and fix the capsule assembly to the esophagus tissue. On the whole, the overall structure is simple and the operation is very convenient.

Preferably, the handle part includes a hollow cylindrical body connected to the head end, the hollow cylindrical body is provided with a notch, and the inner wall of the hollow cylindrical body is symmetrically provided with protrusions near the notch;

The pull button is arranged at the notch, and grooves are respectively arranged on both sides of the pull button corresponding to the positions of the bumps. When the pull button is pulled to move back and forth, the bumps along the corresponding sides The groove slides.

Preferably, the bracket carrier includes a connection part, a bearing part and a guide part arranged sequentially from front to back, one end of the conduit is installed in the central hole of the connection part, and the other end is installed on the head end , the bearing part is provided with at least two concave cavities and the first steel wire holes arranged at intervals between the concave cavities, and the lower end of the PH capsule and/or the upper cover is provided with a A block in the cavity, the block is provided with a second steel wire through hole, and a steel wire perforation connected with the first steel wire through hole is provided on the connecting part, and the steel wire passes through the steel wire through the hole, the first steel wire passes through After the hole and the second steel wire pass through the hole, the capsule assembly is connected to the bearing part.

In this way, the PH capsule and/or the block at the lower end of the upper cover are installed in the cavity of the bearing part, and then the steel wires are sequentially passed through the steel wire holes on the bracket carrier, the first steel wire through holes and the second hole on the capsule assembly. After the second steel wire passes through the hole, the capsule assembly is connected to the bracket carrier, and the steel wire can be pulled out when the capsule assembly needs to be released.

Preferably, the steel wire perforation is a tapered hole, and the diameter of the front end thereof is larger than the diameter of the rear end thereof.

With such arrangement, the aperture at the front end is larger than the aperture at the rear end, which facilitates the penetration of the steel wire.

Preferably, a sealing ring is further provided between the connecting portion of the bracket carrier and the capsule assembly, and the central hole of the sealing ring communicates with the vent hole and the inner cavity of the conduit.

By arranging the sealing ring, the sealing performance during the pumping process is ensured, and the operation efficiency is improved.

Preferably, an air-sealing connector is connected to the outer periphery of the connecting portion near its front end, and the air-sealing connector is sheathed on the conduit.

Such setting further improves the integrity and sealing of the structure and improves the operational performance.

Preferably, a sealing air cushion is embedded in the head end, and the sealing cavity is formed between the sealing air cushion and the inner cavity of the head end.

Compared with prior art, the beneficial effect of the present invention:

1. It reduces the operation steps during the doctor's operation, improves the success rate of the operation, and avoids medical accidents or medical device failures caused by cumbersome operations;

2. Reduced structural design, simplified the overall assembly process, improved production efficiency and reduced production costs;

3. Improve the success rate of PH capsule fixation on the esophagus, no need to push the anchoring element into the esophagus tissue, greatly reduce the trauma to the inner wall of the esophagus; at the same time, after being fixed on the esophagus, the time to automatically fall off can be shortened Effective protection;

4. Compared with the reference document, the number of steel wires is reduced, which also reduces the resistance of the pumping process, making the pumping in the tube smooth, shortening the pumping time, and indirectly improving the efficiency of the doctor's operation.

Description of drawings:

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic structural view of the conveying device in Fig. 1;

Fig. 3 is a partial top view in Fig. 2;

Fig. 4 is A-A sectional view among Fig. 3;

Fig. 5 is a schematic structural diagram of the bracket carrier in Fig. 1;

Fig. 6 is a schematic structural view of the capsule assembly of Fig. 1;

Fig. 7 is a structural schematic diagram of the barbed ring in Fig. 6;

Fig. 8 is a schematic structural view of the lower cover in Fig. 6;

Fig. 9 is a schematic diagram of the structure of the esophageal tissue being sucked into the capsule assembly;

Fig. 10 is a schematic diagram of the structure of the steel wire detached from the capsule assembly after moving up;

Fig. 11 is a schematic structural view of the capsule assembly fixed in the esophagus and the delivery device moved up.

Detailed ways

The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention.

In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary, and those of ordinary skill in the art may understand the specific meanings of the above terms according to specific situations.

The capsule delivery and fixation device shown in accompanying drawings 1 to 8 includes a capsule assembly movably connected to the delivery device, and the specific structure of this embodiment is described as follows.

As can be seen from Fig. 6, Fig. 7 and Fig. 8, the capsule assembly includes a PH capsule 100. From the perspective of the specific use direction, the front end of the PH capsule 100 is connected with a lower cover 8, and the lower cover 8 includes a lower cover body 82. The cover body 82 has a columnar structure as a whole. The lower cover body 82 is provided with a cavity 84. The opening of the cavity 84 faces upwards, and a barbed ring is embedded in the inner wall of the cavity 84 near its upper end. A vent hole 85 is also arranged on the top near its lower end, and the vent hole 85 communicates with the cavity 84 .

The barb ring includes an annular body 90 embedded in the upper end of the inner wall of the cavity 84. The inner ring of the annular body 90 is distributed with two barbs 91 along its circumference, and the connecting line of the two barbs 91 passes through the annular body The center of 90 can also be 3 or more. The barb 91 is inclined downward relative to the plane of the annular body 90 and extends into the cavity 84. When the esophageal tissue stretches into the cavity 84, the barb 91 can block the Esophageal tissue.

The upper end of the lower cover 8 is connected with an upper cover 10, the upper cover 10 is a disc-shaped structure with a central hole, the upper cover 10, the annular body 90 and the lower cover 8 are coaxially arranged, and the inner diameter of the upper cover 10 is in line with the cavity 84 have the same diameter, the outer diameter of the upper cover 10 is the same as that of the lower cover 8 , and the central hole of the upper cover 10 communicates with the cavity 84 .

At the same time, the lower ends of the PH capsule 100 and/or the lower cover 8 are respectively provided with a block 80 extending downward, and the block 80 is provided with a second steel wire hole 81 through which the steel wire 3 can pass. 81.

As can be seen from Fig. 2, Fig. 3 and Fig. 4, the conveying device comprises a bracket carrier 1, and the front end of the bracket carrier 1 is connected to the head end 4 through a conduit 2, and a sealing air cushion 42 is arranged inside the head end 4. A sealing cavity 41 is formed between the sealing air cushion 42 and the inner cavity of the head end 4, the sealing cavity 41 communicates with the inner cavity of the catheter 2, and an air extraction hole 40 is also arranged on the head end 4, and the air extraction hole 40 is connected to the sealing cavity 41. When in use, the negative pressure suction device is connected to the air hole 40 for air extraction. A baffle 43 is also embedded in the head end 4 , and the baffle 43 abuts against the sealing air cushion 42 .

A handle 5 is connected to the front end of the head end 4, and a pull buckle 6 is slidably connected to the handle 5, and a steel wire 3 is connected to the pull buckle 6, and one end of the steel wire 3 is movably threaded on the capsule assembly and the bracket carrier 1 , and the other end is fixedly connected with the pull buckle 6. The steel wire 3 can also be replaced with other elongated ropes or objects with certain toughness and rigidity.

Specifically as shown in Fig. 3 and Fig. 4, the handle 5 includes a hollow cylindrical body 50 connected to the head end 4, a gap 51 is arranged on the hollow cylindrical body 50, and a position close to the gap 51 is provided on the inner wall of the hollow cylindrical body 50. There are protrusions 52 arranged symmetrically; the buckle 6 is arranged at the notch 51, and grooves 62 are respectively arranged at positions corresponding to the protrusions 52 on both sides of the buckle 6. When the buckle 6 is pulled to move back and forth, the protrusions 52 slides along the groove 62 on the corresponding side.

It can be seen from Fig. 5 in conjunction with Fig. 1 and Fig. 2 that the bracket carrier 1 includes a connecting part 12, a bearing part 11 and a guiding part 13 arranged in sequence from front to back, and one end of the conduit 2 is installed in the central hole of the connecting part 12, And butt against the inner wall of the central hole of the connecting part 12, the other end is installed on the head end part 4, and the bearing part 11 is provided with at least two concave cavities 110 and first steel wire via holes arranged at intervals between the concave cavities 110 111, the PH capsule 100 and/or the block 80 at the lower end of the upper cover 8 can extend into the cavity 110, and the connecting portion 12 is provided with a steel wire perforation 14 communicating with the first steel wire through hole 111, and the steel wire perforation 14 is a cone shaped hole, and the diameter of its front end is greater than the diameter of its rear end. After installation, the steel wire perforation 14, the first steel wire through hole 111 and the second steel wire through hole 81 are on a straight line, and the steel wire 3 passes through the sealing air cushion 42 and the baffle in turn. 43. Seal the cavity 41, the central hole of the conduit 2, and pass through the hole wall of the conduit 2, then enter the steel wire perforation 14, the first steel wire through hole 111 and the second steel wire through hole 81, and then connect the capsule assembly to the On the carrying part 11, the connection between the capsule assembly and the delivery device is realized, and the steel wire 3 can be pulled out when the capsule assembly needs to be released.

A sealing ring 15 is also provided between the connecting portion 12 of the bracket carrier 1 and the capsule assembly, and the central hole of the sealing ring 15 communicates with the vent hole 85 and the inner cavity of the conduit 2 . At the same time, an air-sealing connector 20 is connected to the outer periphery of the connecting portion 12 near its front end. One end of the air-sealing connector 20 is sleeved on the connecting portion 12 , and the other end is sleeved on the conduit 2 for sealing.

It also includes a vent rod 60, one end of which is affixed to the pull button 6, and the other end can pass through the sealing air cushion 42 and the baffle plate 43 and then extend into the sealing cavity 41. When the pressure relief is required, the pressure relief rod 60 Pull out the sealing air cushion 42 and the baffle plate 43 .

The principle and action process of the present invention are as follows: first pass the steel wire 3 through the steel wire perforation 14, the first steel wire through hole 111 and the second steel wire through hole 81 to connect the capsule assembly on the delivery device, then the capsule assembly, bracket The carrier 1 and the catheter 2 are sent into the esophagus, and the negative pressure suction device is connected to the suction hole 40 to pump air, so that a negative pressure is formed in the cavity 84 of the lower cover 8 of the capsule assembly, and the esophageal tissue enters the cavity 84 under the action of the pressure difference At the same time, due to the effect of the barb 91, the esophageal tissue will be stuck in the cavity 84 (as shown in Figure 9); after a few minutes of pumping air, the buckle 6 is lifted upwards to drive the steel wire 3 to move upward, when the steel wire 3 After the movable end breaks away from the first steel wire hole 111 and the second steel wire hole 81, the capsule assembly is separated from the delivery device (as shown in Figure 10); As shown in Figure 11).

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. a kind of hangnail circle, it is characterised in that: the inner ring including annular body (90), the annular body (90) is circumferentially distributed along its There are at least two hangnails (91), which slopes inwardly along the axis of the annular body (90) is arranged.

2. a kind of capsule component with hangnail circle described in claim 1, including PH capsule (100), it is characterised in that: the PH glue The front end of capsule (100) is connected with lower cover (8), the lower cover (8) be equipped with type chamber (84), the type chamber (84) it is opening up, it is described Annular body (90) is embedded in the inner wall upper end of the type chamber (84), and the hangnail (91) is protruded into the type chamber (84), and should Type chamber (84) is connected by venthole (85) with the external world.

3. a kind of capsule component according to claim 2, it is characterised in that: be provided in the upper end of the lower cover (8) It covers (10), the upper cover (10) and the annular body (90) and lower cover (8) are coaxially disposed, and the central through hole of the upper cover (10) It is connected to the type chamber (84).

4. a kind of capsule conveying and fixed device, it is characterised in that: including leading to capsule component described in Claims 2 or 3 It crosses steel wire (3) to be movably connected on bracket carrier (1), the front end of the bracket carrier (1) passes through conduit (2) and cephalic par (4) Connection, the cephalic par (4) is interior to have a seal chamber (41), and aspirating hole (40), the pumping are additionally provided on the cephalic par (4) Hole (40) is connected to the seal chamber (41), and the inner cavity of the type chamber (84) and the conduit (2), seal chamber (41) and pumping Stomata (40) is connected；

Hand-held part (5) are connected in the front end of the cephalic par (4), are slidably connected pulling buckle (6) on the hand-held part (5), it is described One end activity of steel wire (3) is threaded through on the capsule component and bracket carrier (1), the other end and the pulling buckle (6) fixed company It connects.

5. a kind of capsule conveying according to claim 4 and fixed device, it is characterised in that: the hand-held part (5) includes The open column shape ontology (50) connecting with the cephalic par (4) is provided with a notch (51), institute on the open column shape ontology (50) It states and is symmetrically arranged with convex block (52) at the position of the notch (51) on the inner wall of open column shape ontology (50)；

The pulling buckle (6) is arranged at notch (51), and the two sides of the pulling buckle (6) correspond at the position of the convex block (52) Fluted (62) are respectively set, during pulling the pulling buckle (6) to be moved forward and backward, the convex block (52) is along described in respective side Groove (62) sliding.

6. a kind of capsule conveying according to claim 5 and fixed device, it is characterised in that: bracket carrier (1) packet The interconnecting piece (12), supporting part (11) and guide part (13) set gradually from front to back is included, one end of the conduit (2) is mounted on In the centre bore of the interconnecting piece (12), the other end is mounted on the cephalic par (4), be provided on the supporting part (11) to Few two cavitys (110) and the first steel wire via hole (111) being arranged at intervals between the cavity (110), in the PH capsule (100) and/or the lower end of the upper cover (8) is provided with can extend into type block (80) in the cavity (110), on the type block (80) It is provided with the second steel wire via hole (81), the steel wire being connected to the first steel wire via hole (111) is provided on the interconnecting piece (12) It perforates (14), the steel wire (3) sequentially passes through steel wire perforation (14), the first steel wire via hole (111) and the second steel wire via hole (81) The capsule component is connected on the supporting part (11) afterwards.

7. a kind of capsule conveying according to claim 6 and fixed device, it is characterised in that: the steel wire perforation (14) is Bellmouth, and the diameter of its front end is greater than the diameter of its rear end.

8. a kind of capsule conveying according to claim 7 and fixed device, it is characterised in that: in the bracket carrier (1) Interconnecting piece (12) and capsule component between be additionally provided with sealing ring (15), the centre bore of the sealing ring (15) and the venthole (85) it is connected with the inner cavity of the conduit (2).

9. a kind of capsule conveying according to claim 8 and fixed device, it is characterised in that: in the interconnecting piece (12) Periphery is connected with envelope gas connector (20) close to the position of its front end, which is set on the conduit (2).

10. a kind of capsule conveying according to claim 9 and fixed device, it is characterised in that: in the cephalic par (4) Sealed air cushion (42) are embedded with, form the seal chamber (41) between the sealed air cushion (42) and the inner cavity of the cephalic par (4).