CN219229971U - Double-cavity adjustable bent sheath - Google Patents
Double-cavity adjustable bent sheath Download PDFInfo
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- CN219229971U CN219229971U CN202223242707.2U CN202223242707U CN219229971U CN 219229971 U CN219229971 U CN 219229971U CN 202223242707 U CN202223242707 U CN 202223242707U CN 219229971 U CN219229971 U CN 219229971U
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- fixedly connected
- loader
- movable ring
- sheath
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Abstract
The utility model discloses a double-cavity adjustable bent sheath, which comprises a loader, wherein one end of the loader is fixedly connected with a sheath pipe in a penetrating way, the top of the loader is provided with a bending adjusting mechanism, the bending adjusting mechanism comprises a stay wire, a movable cavity is formed in the sheath pipe, the top of the loader is fixedly connected with a mounting pipe in a penetrating way, a nut is connected to the mounting pipe in a threaded penetrating way, the bottom end of the nut is provided with a movable ring, a connecting block is fixedly connected between the inner walls of the movable ring, and a connecting mechanism is arranged between the nut and the movable ring. According to the utility model, the nut is rotated on the mounting pipe, so that the nut drives the movable ring to move, the connecting block moves in the inner cavity of the mounting pipe along with the movement of the movable ring, one end of the stay wire is pulled, the other end of the stay wire pulls and bends the head end of the sheath pipe, the bending angle of the head end of the sheath pipe is adjusted, the stay wire is pulled conveniently, the displacement of the stay wire is accurately adjusted, and the sheath pipe is bent and adjusted.
Description
Technical Field
The utility model relates to the field of medical appliances, in particular to a double-cavity adjustable bent sheath.
Background
The sheath is a medical device for delivering drugs to an affected part, and is widely used in minimally invasive interventional diagnosis and therapeutic operations for establishing a channel, delivering or recovering medical devices, delivering drugs, or delivering body fluids.
The sheath tube in the prior art is provided with a channel for inputting medicines and instruments, and in operation, a plurality of medicines and instruments are often required to be matched for use, so that the introduction of the medicines and the instruments is inconvenient, the distal end of the sheath tube is bent and adjusted through the stay wire by the adjustable sheath tube, the stay wire is directly pulled, and the accurate adjustment of the stay wire displacement is inconvenient.
Disclosure of Invention
The utility model aims to provide a double-cavity adjustable bent sheath so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the double-cavity adjustable bent sheath comprises a loader, wherein one end of the loader is fixedly connected with a sheath tube in a penetrating way and used for introducing an instrument;
the top of the loader is provided with a bending adjusting mechanism for bending and adjusting one end of the sheath tube;
the bending adjusting mechanism comprises a stay wire, a movable cavity is formed in the sheath pipe, the top of the loader is fixedly connected with a mounting pipe in a penetrating mode, a nut is connected to the mounting pipe in a penetrating mode through threads, a movable ring is arranged at the bottom end of the nut, and a connecting block is fixedly connected between the inner walls of the movable ring;
and a connecting mechanism is arranged between the nut and the movable ring, so that the stable movement of the movable ring is ensured.
Preferably, the connecting mechanism comprises two clamping blocks, the two clamping blocks are fixedly connected with the inner wall of one end of the movable ring respectively, a connecting groove is formed in the outer wall of one end of the nut, and the inner cavity of the connecting groove is connected with one ends of the two clamping blocks in a sliding penetrating mode.
Preferably, both sides of the installation tube are provided with sliding grooves, the inner cavities of the sliding grooves are connected with the connecting blocks in a sliding and penetrating mode, and the inner walls of the installation tube are fixedly connected with rubber rings.
Preferably, a first channel is arranged at the bottom of the sheath tube, a second channel is arranged at the top of the sheath tube, a connecting pipe is fixedly inserted and connected at the bottom of the loader, and an expander is fixedly connected at one end of the connecting pipe.
Preferably, the top of loader inner wall fixedly connected with supporting shoe, the bottom of supporting shoe is provided with the draw-in groove, the through-hole has been seted up at the top of loader inner wall.
Preferably, one end of the stay wire is fixedly connected with one side of the inner wall of the movable cavity, the other end of the stay wire is fixedly connected with the middle part of the connecting block, and one end of the movable ring is rotatably and alternately connected with one end of the nut.
The utility model has the technical effects and advantages that:
(1) According to the utility model, by adopting a setting mode that the installation tube, the nut, the movable ring, the connecting block and the stay wire are matched, the nut is rotated on the installation tube, so that the nut drives the movable ring to move, the connecting block moves in the inner cavity of the installation tube along with the movement of the movable ring, one end of the stay wire is pulled, the other end of the stay wire pulls and bends the head end of the sheath tube, the bending angle of the head end of the sheath tube is adjusted, the stay wire is pulled conveniently, the displacement of the stay wire is accurately adjusted, and the sheath tube is bent and adjusted;
(2) According to the utility model, by means of the arrangement mode that the clamping block is matched with the connecting groove, one end of the movable ring is inserted into one end of the nut, the clamping block is extruded to deform, the movable ring is inserted into the inner cavity of the connecting groove, the movable ring is connected with the nut, and the clamping block slides in the inner cavity of the connecting groove along with the rotation of the nut to drive the movable ring to move on the mounting tube.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
FIG. 2 is a schematic view of the front cross-sectional structure of the sheath of the present utility model.
Fig. 3 is a schematic view of a front cross-sectional structure of the loader of the present utility model.
FIG. 4 is a schematic view of the front cross-sectional structure of the mounting tube of the present utility model.
Fig. 5 is an enlarged schematic view of the structure of fig. 4 at a.
FIG. 6 is a schematic view of the structure of the sheath tube of the present utility model.
In the figure: 1. a loader; 2. a sheath; 3. a bending adjusting mechanism; 31. a pull wire; 32. a movable cavity; 33. installing a pipe; 34. a nut; 35. a movable ring; 36. a connecting block; 4. a connecting mechanism; 41. a clamping block; 42. a connecting groove; 5. a chute; 6. a rubber ring; 7. a first channel; 8. a second channel; 9. a connecting pipe; 10. a dilator; 11. a support block; 12. a clamping groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a double-cavity adjustable bent sheath as shown in figures 1-6, which comprises a loader 1 for installing a sheath tube 2, wherein one end of the loader 1 is fixedly connected with the sheath tube 2 in a penetrating way and used for introducing an instrument, the sheath tube 2 is made of a silica gel material and can be deformed and used for being introduced into a blood vessel of a patient, and surgical instruments are introduced into the blood vessel through the sheath tube 2;
the top of the loader 1 is provided with a bending adjusting mechanism 3 which is used for bending and adjusting one end of the sheath tube 2, bending and adjusting the head end of the sheath tube 2 and adjusting the position of the leading-in instrument;
the bending mechanism 3 comprises a stay wire 31, wherein the stay wire 31 is made of a metal material, one end of the stay wire 31 is fixed at the head end position of a sheath tube 2, the head end of the sheath tube 2 is bent by pulling the stay wire 31, a movable cavity 32 is formed in the sheath tube 2, the movable cavity 32 is arranged in the sheath tube 2 and is used for installing the stay wire 31, the stay wire 31 moves in an inner cavity of the movable cavity 32, the top of the loader 1 is fixedly inserted and connected with an installation tube 33, the installation tube 33 is obliquely arranged and is used for installing a nut 34 and a movable ring 35, the installation tube 33 is threaded and connected with a nut 34 in a threaded manner, the outer wall of the installation tube 33 is provided with an external thread, the nut 34 rotates on the installation tube 33, the movable ring 35 is arranged at the bottom end of the nut 34 and is used for connecting the stay wire 31, the movable ring 35 is driven to move by rotating the nut 34 on the installation tube 33, the head end of the sheath tube 2 is further pulled to bend, the bending angle of the sheath tube 2 is adjusted, a connecting block 36 and 36 is fixedly connected between the inner walls of the movable ring 35 in a laminar manner, the connecting block is inserted and arranged in the inner cavity of the installation tube 33, and one end of the movable ring 35 moves together with the movable ring 35;
a connecting mechanism 4 is arranged between the nut 34 and the movable ring 35, so that the stable movement of the movable ring 35 is ensured;
the connecting mechanism 4 comprises two clamping blocks 41, wherein the clamping blocks 41 are made of elastic materials and can be deformed to a certain extent, and are used for installing the movable ring 35, the two clamping blocks 41 are fixedly connected with the inner wall of one end of the movable ring 35 respectively, the outer wall of one end of the nut 34 is provided with a connecting groove 42, the connecting groove 42 is in an annular shape, the inner cavity of the connecting groove 42 is in sliding insertion connection with one end of the two clamping blocks 41, one end of the movable ring 35 is inserted into one end of the nut 34, the clamping blocks 41 are extruded to deform, so that the clamping blocks 41 are inserted into the inner cavity of the connecting groove 42, the movable ring 35 is connected with the nut 34, and the movable ring 35 is driven to move on the installation tube 33 along with the rotation of the nut 34;
the two sides of the mounting tube 33 are provided with the sliding grooves 5, the sliding grooves 5 are used for mounting the connecting blocks 36, the inner cavities of the sliding grooves 5 are connected with the connecting blocks 36 in a sliding and penetrating mode, the connecting blocks 36 are used for limiting the movable rings 35 and preventing the movable rings 35 from rotating, the inner walls of the mounting tube 33 are fixedly connected with the rubber rings 6, through grooves are formed in the rubber rings 6, the connecting blocks 36 are arranged in the inner cavities of the through grooves in a penetrating mode, and the connecting blocks 36 are driven to slide in the through grooves along with the movement of the movable rings 35, and the positions of the sliding grooves 5 are sealed by the rubber rings 6;
the bottom of the sheath tube 2 is provided with a first channel 7, the top of the sheath tube 2 is provided with a second channel 8, the diameter of the first channel 7 is larger than that of the second channel 8, the first channel 7 and the second channel 8 are communicated with the inside of the sheath tube 2, a plurality of instruments can be guided into a treatment position through the first channel 7 and the second channel 8, the bottom of the loader 1 is fixedly connected with a connecting pipe 9 in a penetrating way, one end of the connecting pipe 9 is fixedly connected with an expander 10, and the expander 10 is connected with the loader 1 through the connecting pipe 9;
the top of the inner wall of the loader 1 is fixedly connected with a supporting block 11, the supporting block 11 is used for supporting a stay wire 31, stable movement of the stay wire 31 is guaranteed, a clamping groove 12 is formed in the bottom of the supporting block 11, the stay wire 31 is arranged in an inner cavity of the clamping groove 12, movement of the stay wire 31 is limited, a through hole is formed in the top of the inner wall of the loader 1, and the through hole is communicated with the inner cavity of an installation tube 33 and used for pulling the stay wire 31;
one end of the stay wire 31 is fixedly connected with one side of the inner wall of the movable cavity 32, the other end of the stay wire 31 is fixedly connected with the middle part of the connecting block 36, and one end of the movable ring 35 is rotatably and alternately connected with one end of the nut 34.
The working principle of the utility model is as follows: through rotating nut 34 on installation pipe 33 for nut 34 drives expansion ring 35 and removes, along with the removal of expansion ring 35, connecting block 36 removes in the inner chamber of installation pipe 33, and then to pulling the one end of acting as go-between 31, the other end of acting as go-between 31 pulls and crooked the head end of sheath pipe 2, and adjust the crooked angle of sheath pipe 2 head end, simultaneously through penetrating the one end of expansion ring 35 to the one end of nut 34, extrusion fixture block 41 deformation makes it alternate to the inner chamber of spread groove 42, be connected expansion ring 35 and nut 34, along with the rotation of nut 34, fixture block 41 slides in the inner chamber of spread groove 42, drive expansion ring 35 and remove on installation pipe 33.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. A dual lumen adjustable bend sheath comprising:
the device comprises a loader (1), wherein one end of the loader (1) is fixedly connected with a sheath tube (2) in a penetrating way and used for introducing instruments;
the method is characterized in that: the top of the loader (1) is provided with a bending adjusting mechanism (3) for bending and adjusting one end of the sheath tube (2);
the bending adjusting mechanism (3) comprises a stay wire (31), a movable cavity (32) is formed in the sheath tube (2), an installation tube (33) is fixedly connected to the top of the loader (1) in a penetrating mode, a nut (34) is connected to the installation tube (33) in a penetrating mode through threads, a movable ring (35) is arranged at the bottom end of the nut (34), and a connecting block (36) is fixedly connected between the inner walls of the movable ring (35);
a connecting mechanism (4) is arranged between the nut (34) and the movable ring (35) to ensure the stable movement of the movable ring (35).
2. The double-cavity adjustable bent sheath according to claim 1, wherein the connecting mechanism (4) comprises two clamping blocks (41), the two clamping blocks (41) are fixedly connected with the inner wall of one end of the movable ring (35) respectively, a connecting groove (42) is formed in the outer wall of one end of the nut (34), and an inner cavity of the connecting groove (42) is connected with one end of the two clamping blocks (41) in a sliding penetrating and inserting mode.
3. The double-cavity adjustable bent sheath according to claim 1, wherein sliding grooves (5) are formed in two sides of the mounting tube (33), an inner cavity of each sliding groove (5) is connected with the connecting block (36) in a sliding penetrating mode, and a rubber ring (6) is fixedly connected to the inner wall of the mounting tube (33).
4. The double-cavity adjustable bent sheath according to claim 1, wherein a first channel (7) is arranged at the bottom of the sheath tube (2), a second channel (8) is arranged at the top of the sheath tube (2), a connecting pipe (9) is fixedly inserted and connected at the bottom of the loader (1), and an expander (10) is fixedly connected at one end of the connecting pipe (9).
5. The double-cavity adjustable bent sheath according to claim 1, wherein a supporting block (11) is fixedly connected to the top of the inner wall of the loader (1), a clamping groove (12) is formed in the bottom of the supporting block (11), and a through hole is formed in the top of the inner wall of the loader (1).
6. The double-cavity adjustable bent sheath according to claim 1, wherein one end of the pull wire (31) is fixedly connected with one side of the inner wall of the movable cavity (32), the other end of the pull wire (31) is fixedly connected with the middle part of the connecting block (36), and one end of the movable ring (35) is rotatably and alternately connected with one end of the nut (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223242707.2U CN219229971U (en) | 2022-12-05 | 2022-12-05 | Double-cavity adjustable bent sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223242707.2U CN219229971U (en) | 2022-12-05 | 2022-12-05 | Double-cavity adjustable bent sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219229971U true CN219229971U (en) | 2023-06-23 |
Family
ID=86843343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223242707.2U Active CN219229971U (en) | 2022-12-05 | 2022-12-05 | Double-cavity adjustable bent sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219229971U (en) |
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2022
- 2022-12-05 CN CN202223242707.2U patent/CN219229971U/en active Active
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