CN212439669U

CN212439669U - Bendable traction nipple intubator

Info

Publication number: CN212439669U
Application number: CN202020697123.6U
Authority: CN
Inventors: 黄锦
Original assignee: Jiangsu Weidekang Medical Science & Technology Co ltd
Current assignee: Changzhou Second Peoples Hospital
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-02-02
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a bendable traction nipple intubator, which comprises an outer tube, an intubation tube arranged on the outer tube along the axial direction of the outer tube, a clamp assembly arranged in the outer tube along the axial direction of the outer tube, a control handle arranged at the rear end of the outer tube and at least 1 wire drawing arranged along the extension direction of the outer tube; the intubation is used for inserting the radiography conduit, the clamp assembly comprises a clamp head assembly arranged at the front end of the outer tube, a first executing mechanism is arranged on the control handle, the front end of the wire drawing is connected with the front end of the outer tube, the rear end of the wire drawing extends backwards along the outer tube and is connected with the first executing mechanism, and the first executing mechanism can draw the wire drawing backwards and enable the front end of the outer tube to bend laterally towards one side where the wire drawing is located. The intubation tube is combined with the forceps head assembly through the outer tube, the head of the intubation tube is controlled to be bent left and right through the wire drawing, and the shape of the nipple can be adjusted as required after the mucous membrane of the nipple is clamped, so that the optimal intubation position is obtained.

Description

Bendable traction nipple intubator

Technical Field

The utility model belongs to the technical field of medical instrument, concretely relates to flexible tractive nipple intubator.

Background

ERCP endoscopic retrograde cholangiopancreatography refers to inserting a duodenoscope into the descending part of the duodenum, finding the duodenal papilla, inserting a contrast catheter or a papillary incision knife through a channel orifice to establish the direction, and inserting a guide wire into the biliary pancreatic duct. Nipple intubation, which is the key to success or failure of ERCP, is the technical difficulty and affects the incidence of complications. The external form diversity of the nipple, the heterogeneity of the internal structure of the nipple, and the intubation of the nipple, the papillary tumor, the ampulla tumor, the diverticulum beside the nipple, the bicula II and the like in the diverticulum become difficult, so the adjustment of the nipple is an urgent need of difficult intubation.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a flexible tractive nipple intubator can realize the fine setting of nipple shape and position, and then make things convenient for the intubate, improve the intubate success rate.

In order to realize the purpose, the utility model discloses a technical scheme is: a bendable pulling nipple intubator comprises an outer tube, an insertion tube, a clamp assembly, a control handle and at least 1 wire, wherein the insertion tube is installed on the outer tube along the axial direction of the outer tube; the intubation is used for inserting a contrast catheter, the clamp assembly comprises a clamp head assembly arranged at the front end of the outer tube, a first actuating mechanism is arranged on the control handle,

the front end of the drawn wire is connected with the front end of the outer tube, the rear end of the drawn wire extends backwards along the outer tube to the control handle and is connected with the first executing mechanism, and the first executing mechanism can pull the drawn wire backwards and bend the front end of the outer tube to one side where the drawn wire is located; and the control handle is also provided with a second actuating mechanism which is used for controlling the opening and closing of the forceps head assembly.

Furthermore, the wire drawing has 2 and relative setting in the left and right sides of outer tube.

Furthermore, the staggered installation cavity used for penetrating through the clamp assembly in the outer pipe is provided with a wire drawing cavity along the extension direction of the outer pipe, and the wire drawing cavity corresponds to the wire drawing.

Furthermore, the first executing mechanism comprises a first slide rail which is arranged on the control handle and corresponds to the drawn wires and a first slide ring which is matched with the first slide rail in a sliding and guiding manner, the first slide rail is arranged along the front-back direction, and the rear ends of the drawn wires are connected with the first slide ring in a one-to-one correspondence manner; the first slide rail is provided with first inverted teeth, and the first slide ring is provided with second inverted teeth matched with the first inverted teeth; through the first pawl and the second pawl which are matched with each other, when the outer pipe is bent to one side, the first sliding ring cannot slide forwards along the first sliding rail due to the fact that the drawing wire is pulled by the elastic force of the outer pipe.

Furthermore, the control handle includes first control handle and the second control handle who rotates with first control handle and be connected of relative fixed connection at the rear end of outer tube, first actuating mechanism locates on first control handle, second actuating mechanism locates on the second control handle, the clamp subassembly is connected with second actuating mechanism, when the rotatory second control handle of the relative outer tube of axial around the outer tube, the synchronous revolution of clamp subassembly. Through this step optimization, the intubate in-process, the rotation of clamp subassembly interlock nipple mucous membrane, the simultaneous control regulation clamp subassembly can play the effect of upset nipple mucous membrane, and then for the radiography pipe gets into the human body and opens up the passageway, also lets the art person obtain the intubate more successfully.

Furthermore, a channel along the axial direction of the outer pipe is arranged on the first control handle; the second actuating mechanism comprises a second slide rail arranged on the second control handle and along the front-back direction and a second slide ring in sliding guide fit with the second slide rail;

the clamp assembly further comprises a clamp head frame rotatably mounted at the front end of the outer pipe and a core rod, the front end of the core rod is hinged to the clamp head frame, the rear end of the core rod penetrates through the channel backwards and then is connected with the second sliding ring, and when the second sliding ring drives the core rod to slide forwards and backwards along the second sliding rail, the clamp head assembly is alternately opened and closed.

Furthermore, the binding clip assembly comprises 2 binding clips and 2 connecting rods, the middle parts of the 2 binding clips are hinged to the binding clip frame through first fixing pins, the rear ends of the 2 binding clips are respectively provided with first gears, the front ends of the 2 connecting rods are respectively provided with second gears which are correspondingly meshed with the first gears one by one, and the 2 connecting rods are hinged to the front end of the core rod through second fixing pins; when the tong head assembly is alternated between opening and closing, the first gear and the second gear are always in a meshed state. Compared with the traditional connecting rod mechanism of the tong head assembly, the gear connecting rod mechanism can more accurately control the opening degree and the biting force of the tong head assembly. The first gear is fixedly arranged on the tong head, and the second gear is fixedly arranged on the connecting rod.

Furthermore, be equipped with mutual interlock fit's dogtooth on 2 binding clip's the occlusal surface, the dogtooth does not have the acute angle, is bitten when preventing pincers bite nipple mucosa and is worn, for example the dogtooth top can be plane or arcwall face.

Furthermore, the handle device also comprises a third control handle, the third control handle is rotatably connected with the rear end of the second control handle, and the second control handle can rotate relative to the outer tube around the axis of the outer tube and can also rotate relative to the third control handle. Through this step optimization, during the use, can hold the outer tube on one hand, hold third control handle and slip ring or rotatory second control handle around sliding forward and backward on one hand, the relative outer tube of second handle and third control handle of being convenient for is alone around the outer tube axis rotation, and the operation is comparatively convenient.

The intubator adopts the design of the slightly hard outer tube, so that an operator can push and pull the outer tube as required, further obtain the transmission of the strength of the forceps head and easily push and pull the nipple. Preferably, the outer tube is a spring tube, and the insertion tube is made of PTFE material.

Compared with the prior art, the utility model discloses the technological effect who gains does: the intubation tube is applied by combining the outer tube with the forceps head assembly, the head of the intubation tube can be bent left and right through the arranged drawing wires, the left and right bending adjustment is realized through the first executing mechanism, and the nipple shape is adjusted left and right according to clinical requirements after the nipple mucous membrane is clamped, so that the optimal intubation position is obtained.

Drawings

Fig. 1 is a schematic structural view (front view) of a bendable pulling nipple introducer in an embodiment of the present invention.

Fig. 2 is a schematic view of a flexible pulling nipple introducer in an embodiment of the invention (top view, with the jaw assembly in an open position).

Fig. 3 is a schematic partial cross-sectional view of a flexible pulling nipple introducer in an embodiment of the invention.

Fig. 4 is a partial schematic view of a flexible pulling nipple introducer according to an embodiment of the present invention (the outer tube, the insertion tube, the first control handle and the third control handle are omitted from the figure).

Fig. 5 is an enlarged schematic view of a portion a of fig. 3.

The reference numbers in the figures are: 1. the novel clamp comprises an outer tube, 2. an insertion tube, 3. a wire drawing part, 4. a first slide rail, 5. a first sliding ring, 6. a first inverted tooth, 7. a first control handle, 8. a second control handle, 9. a second slide rail, 10. a second sliding ring, 11. a clamp head frame, 12. a core rod, 13. a clamp head, 14. a connecting rod, 15. a first gear, 16. a second gear, 17. a convex tooth, 18. a third control handle, 19. a mounting tube and 20. an open slot.

Detailed Description

The utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and "vertical" are used,

The directional or positional relationships indicated as "inner", "outer", etc. are those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

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 by those of ordinary skill in the art through specific situations.

The specific embodiment of the utility model is shown in fig. 1 to 5, a flexible tractive nipple intubator, including outer tube 1, along the axial of outer tube 1 install intubate 2 on outer tube 1, along the axial of outer tube 1 wear the dress clamp assembly in outer tube 1, set up the brake valve lever in the rear end of outer tube 1 and along the at least 1 wire drawing 3 of outer tube 1 extending direction setting. The intubation tube 2 is used for inserting a contrast catheter, the clamp assembly comprises a clamp head assembly arranged at the front end of the outer tube 1, a first execution mechanism is arranged on the control handle, the front end of the wire drawing 3 is connected with the front end of the outer tube 1, the rear end of the wire drawing 3 extends backwards to the control handle along the outer tube 1 and is connected with the first execution mechanism, and the first execution mechanism can pull the wire drawing 3 backwards and enable the front end of the outer tube 1 to bend towards one side where the wire drawing 3 is located; the control handle is also provided with a second actuating mechanism which is used for controlling the opening and closing of the forceps head assembly.

Specifically, the method comprises the following steps:

the drawing wires 3 are 2 and are oppositely arranged at the left side and the right side of the outer tube 1. The staggered installation cavity used for penetrating through the clamp assembly in the outer tube 1 is provided with a wire drawing cavity along the extension direction of the outer tube 1, the wire drawing cavity is arranged corresponding to the wire drawing 3, the wire drawing 3 is arranged on two sides, and multi-direction adjustment of the front end of the intubator is increased.

First actuating mechanism can be for being used for the carousel of 3 rolling of wire drawing or unreeling, and the first actuating mechanism of this embodiment is including setting up on control handle and with 3 first slide rails 4 that correspond of wire drawing and with first slide rail 4 sliding guide complex first sliding ring 5, first slide rail 4 is for setting up along the fore-and-aft direction, the rear end of wire drawing 3 with first sliding ring 5 one-to-one be connected. First pawl 6 is arranged on the first slide rail 4, and second pawl matched with first pawl 6 is arranged on the first slide ring 5. Through the first inverted tooth 6 and the second inverted tooth which are matched with each other, when the outer tube 1 bends to one side, the first sliding ring 5 cannot slide forwards along the first sliding rail 4 because the elastic force of the outer tube 1 pulls the drawn wire 3.

The control handle comprises a first control handle 7 and a second control handle 8, the first control handle 7 is fixedly connected to the rear end of the outer pipe 1 relatively, the second control handle 8 is rotatably connected with the first control handle 7, the first sliding ring 5 and the first guide rail are arranged on the first control handle 7, the second actuating mechanism is arranged on the second control handle 8, the rear end of the clamp assembly is connected with the second actuating mechanism, and when the second control handle 8 rotates relative to the outer pipe 1 around the axial direction of the outer pipe 1, the clamp assembly synchronously rotates. 2 in-process intubate, binding clip subassembly interlock nipple mucous membrane, the rotation of controlling simultaneously and adjusting the clamp subassembly can play the effect of upset nipple mucous membrane, and then for the radiography pipe gets into the human body and opens up the passageway, also lets the art person obtain 2 successes of intubate more.

The first control handle 7 is provided with a channel along the axial direction of the outer tube 1, and the second actuating mechanism comprises a second slide rail 9 which is arranged on the second control handle 8 and is along the front-back direction and a second slide ring 10 which is in sliding guiding fit with the second slide rail 9.

The clamp assembly further comprises a clamp head frame 11 rotatably mounted at the front end of the outer tube 1 and a core rod 12 with the front end hinged with the clamp head assembly, the clamp head assembly is hinged on the clamp head frame 11, the rear end of the core rod 12 penetrates through the channel backwards and then is connected with a second sliding ring 10, and when the second sliding ring 10 drives the core rod 12 to slide back and forth along the second sliding rail 9, the clamp head assembly is alternately opened and closed.

The binding clip assembly comprises 2 binding clips 13 and 2 connecting rods 14, the middle parts of the 2 binding clips 13 are hinged on the binding clip frame 11 through first fixing pins, the rear ends of the 2 binding clips 13 are respectively provided with first gears 15, the front ends of the 2 connecting rods 14 are respectively provided with second gears 16 which are correspondingly meshed with the first gears 15 one by one, and the 2 connecting rods 14 are hinged at the front end of the core rod 12 through second fixing pins; the first gear 15 and the second gear 16 are always in mesh when the jaw assembly alternates between open and closed. The gear linkage 14 mechanism enables more precise control of jaw assembly opening and biting forces than the linkage 14 mechanism of conventional jaw assemblies.

The first gear 15 is fixedly mounted on the tong head 13, and the second gear 16 is fixedly mounted on the connecting rod 14. Convex teeth 17 which are mutually matched in a meshing way are arranged on the meshing surfaces of the 2 forceps heads 13, and the convex teeth 17 have no acute angle, so that the forceps are prevented from being bitten through when biting papillary mucosa.

The hand-operated hand. When the sliding ring type.

The rotation mounting between the handles can be realized in a conventional manner in the art, and in the embodiment, the rotation mounting is realized by taking the second control handle 8 and the third control handle 18 as an example, specifically by the following steps: the rear end of the second control handle 8 is provided with an installation pipe along the axial direction of the outer pipe 1, the front end of the installation pipe is fixedly connected with the second control handle 8, the rear end of the installation pipe is provided with open grooves at intervals along the axial direction, the rear end of the installation pipe is provided with a limiting part, the front end of the third control handle 18 is provided with a concave hole along the axial direction, the inner wall of the concave hole is provided with an annular limiting flange, during installation, the limiting part is pinched and inserted into the concave hole, the limiting part crosses the annular limiting flange and is limited by the annular flange, the front end of the third control handle 18 is limited by the rear end of the second control handle 8, and then the second control handle 8 and the third control handle 18 can rotate relatively around the axis of the core rod 12 and are fixed with each other in the axial direction.

The tube inserting device adopts the design of a slightly hard outer tube 1, so that an operator can push and pull the outer tube 1 as required, further obtain the transmission of the force of the forceps head 13 and easily push and pull the nipple. The outer tube in this embodiment is a spring tube, and the cannula is made of PTFE.

During the use, get into the human body with flexible tractive nipple intubator via scope pincers way hole, then through adjusting the opening and shutting of second sliding ring control binding clip and carry the nipple, rethread first sliding ring or outer tube adjustment nipple establish the passageway, finally get into the operation position smoothly with the radiography pipe via the intubate of flexible tractive nipple intubator.

Above, only the preferred embodiment of the present invention is described, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention, and all the technical solutions and concepts of the present invention should be covered within the protection scope of the present invention.

Claims

1. A flexible pulling teat introducer characterized by: the clamp comprises an outer tube (1), an insertion tube (2) arranged on the outer tube (1) along the axial direction of the outer tube (1), a clamp assembly arranged in the outer tube (1) in a penetrating manner along the axial direction of the outer tube (1), a control handle arranged at the rear end of the outer tube (1) and at least 1 wire drawing (3) arranged along the extension direction of the outer tube (1); the intubation tube (2) is used for inserting a contrast catheter, the clamp assembly comprises a clamp head assembly arranged at the front end of the outer tube (1), a first actuating mechanism is arranged on the control handle,

the front end of the wire drawing (3) is connected with the front end of the outer tube (1), the rear end of the wire drawing (3) extends backwards along the outer tube (1) to the control handle and is connected with the first executing mechanism, and the first executing mechanism can pull the wire drawing (3) backwards and bend the front end of the outer tube (1) towards one side where the wire drawing (3) is located; and the control handle is also provided with a second actuating mechanism which is used for controlling the opening and closing of the forceps head assembly.

2. The bendable pulling nipple introducer of claim 1, wherein: the number of the drawing wires (3) is 2, and the drawing wires are oppositely arranged on the left side and the right side of the outer pipe (1).

3. The bendable pulling nipple introducer of claim 1, wherein: the staggered installation cavity used for penetrating through the clamp assembly in the outer pipe (1) is provided with a wire drawing cavity along the extension direction of the outer pipe (1), and the wire drawing cavity corresponds to the wire drawing (3).

4. The bendable pulling nipple introducer of claim 1, wherein: the first executing mechanism comprises a first sliding rail (4) which is arranged on the control handle and corresponds to the drawn wires (3) and a first sliding ring (5) which is slidably guided by the first sliding rail (4), the first sliding rail (4) is arranged along the front-back direction, and the rear ends of the drawn wires (3) are correspondingly connected with the first sliding ring (5) one by one; a first inverted tooth (6) is arranged on the first sliding rail (4), and a second inverted tooth matched with the first inverted tooth (6) is arranged on the first sliding ring (5); through the first inverted tooth (6) and the second inverted tooth which are matched with each other, when the outer pipe (1) bends to one side, the first sliding ring (5) cannot slide forwards along the first sliding rail (4) due to the fact that the drawing wire (3) is pulled by the elasticity of the outer pipe (1).

5. The bendable pulling nipple introducer of any one of claims 1 to 4, wherein: control handle includes relative fixed connection first control handle (7) in the rear end of outer tube (1) and rotates second control handle (8) of being connected with first control handle (7), first actuating mechanism locates on first control handle (7), second actuating mechanism locates on second control handle (8), the clamp subassembly is connected with second actuating mechanism, when rotatory second control handle (8) of relative outer tube (1) of axial around outer tube (1), but clamp subassembly synchronous revolution.

6. The bendable pulling nipple introducer of claim 5, wherein: a channel along the axial direction of the outer pipe (1) is arranged on the first control handle (7); the second actuating mechanism comprises a second sliding rail (9) which is arranged on the second control handle (8) and is arranged along the front-back direction and a second sliding ring (10) which is in sliding guiding fit with the second sliding rail (9);

the clamp assembly further comprises a clamp head frame (11) rotatably mounted at the front end of the outer pipe (1) and a core rod (12) with the front end hinged with the clamp head assembly, the clamp head assembly is hinged to the clamp head frame (11), the rear end of the core rod (12) penetrates through the channel backwards and then is connected with the second sliding ring (10), and when the second sliding ring (10) drives the core rod (12) to slide back and forth along the second sliding rail (9), the clamp head assembly is alternately opened and closed.

7. The bendable pulling nipple introducer of claim 6, wherein: the binding clip assembly comprises 2 binding clips (13) and 2 connecting rods (14), the middle parts of the 2 binding clips (13) are hinged to the binding clip frame (11) through first fixing pins, the rear ends of the 2 binding clips (13) are respectively provided with first gears (15), the front ends of the 2 connecting rods (14) are respectively provided with second gears (16) which are correspondingly meshed with the first gears (15) one by one, and the 2 connecting rods (14) are hinged to the front end of the core rod (12) through second fixing pins; when the tong head assembly is alternated between opening and closing, the first gear (15) and the second gear (16) are always in a meshed state;

the first gear (15) is fixedly arranged on the tong head (13), and the second gear (16) is fixedly arranged on the connecting rod (14).

8. The bendable pulling nipple introducer of claim 7, wherein: convex teeth (17) which are mutually meshed and matched are arranged on the meshed surfaces of the 2 forceps heads (13), and the convex teeth (17) have no acute angle.

9. The bendable pulling nipple introducer of claim 5, wherein: the novel outer tube is characterized by further comprising a third control handle (18), wherein the third control handle (18) is rotatably connected with the rear end of the second control handle (8), and the second control handle (8) can rotate relative to the third control handle (18) while rotating relative to the outer tube (1) around the axis of the outer tube (1).

10. The bendable pulling nipple introducer of claim 1, wherein: the outer tube (1) is a spring tube, and the insertion tube (2) is made of PTFE material.