CN219439348U - Oral cavity vestibule puncture cannula with telescopic cap peak - Google Patents

Abstract

The utility model discloses an oral cavity vestibule puncture cannula with a telescopic cap peak, which comprises a main tube body, a lower tube body, a telescopic tube body and a knob cover, wherein the lower tube body is arranged at the lower end of the main tube body and can enter the skin of a human body, the telescopic tube body is arranged in the lower tube body, the knob cover is arranged at the upper end of the main tube body, one side of the lower end of the telescopic tube body extends to form an arc-shaped supporting plate, a transmission part for connecting the knob cover and the telescopic tube body is arranged in the main tube body, when the knob cover is rotated, the telescopic tube body can axially stretch along the lower tube body, and when a doctor operates the oral cavity vestibule puncture cannula with the telescopic cap peak, the doctor can conveniently find a proper position to insert the cannula due to the short initial length, and after the cannula is inserted, the extension length of the cap peak can be conveniently adjusted according to the oral cavity internal environments of different patients, so that the operation is greatly facilitated.

Description

Oral cavity vestibule puncture cannula with telescopic cap peak

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an oral cavity vestibule puncture cannula with a telescopic cap peak.

Background

The puncture cannula is applied to various minimally invasive surgical operations, and is used by specialists in endoscopic operations, such as thyroid operation endoscopic operations, for puncturing, delivering gas, and establishing a channel for an endoscope and surgical instruments to enter and exit the endoscope from the outside.

When an oral vestibule access endoscopic thyroid surgery is performed, a cannula puncture outfit with a 10mm observation hole is required to be inserted from an oral vestibule mucosa incision of a patient, bypasses a mandible and enters a deep side of platysma, so that the head end of the cannula puncture outfit is inserted to a position near the thyroid gland, due to the requirement of exposure, the neck is required to be tilted backwards, a certain operation space is required, an endoscope and the like are required to extend out from the head end of the cannula puncture outfit to be exposed, the head end of the traditional puncture outfit is designed into an arc-shaped structure with a supporting plate, and is similar to the shape of a cricket cap peak, so that the purposes of supporting skin and providing space for the endoscope and the surgery are achieved.

The design that the head end of the puncture outfit adopts the cap peak provides great convenience for operation, but in the process of inserting the puncture outfit, on one hand, compared with a puncture outfit with a flat head end, the puncture outfit has the advantages that the arc supporting plate on one side of the puncture outfit needs to continuously adjust the position when entering the vestibule of the oral cavity, the stimulation brought to the oral cavity is larger, and compared with the tubular puncture outfit, the compression on the unit area of the neck is larger when moving; on the other hand, the cap peak part of the head end of the puncture tube is integrated with the body of the puncture tube sleeve, so that the whole body is longer and is in a non-bendable straight shape, the operator is inconvenient to insert the puncture tube, patients with different neck lengths and different separation spaces are faced, the cap peak is too long and too short, the skin is not supported, and cap peak puncture outfits with different lengths are needed to be used successively to keep the sufficient expansion of the skin in the separation spaces.

Disclosure of Invention

In view of the above, an object of the present utility model is to provide an oral vestibule puncture cannula which is inserted in an oral vestibule access conveniently and quickly and has a retractable cap peak with an adjustable cap peak extension after insertion.

The utility model adopts the technical proposal for solving the technical problems that:

the utility model provides an oral cavity vestibule puncture sleeve with scalable brim of a hat, includes the body of being responsible for, installs at the body lower extreme of being responsible for and can get into the lower body of human skin, the flexible pipe body of setting in the body of being responsible for and install the knob lid in the body upper end of being responsible for, one side extension of flexible pipe body lower extreme forms the arc backup pad, be responsible for the internal driving medium of installing connection knob lid and flexible pipe body to when making rotatory knob lid, flexible pipe body can be along the axial extension of lower body.

The telescopic pipe body comprises a telescopic pipe, a first transmission thread is arranged on the inner wall of the telescopic pipe, the transmission piece comprises a transmission sleeve, the telescopic pipe body is sleeved between the inner wall of the lower body pipe and the outer wall of the transmission sleeve, and a second transmission thread matched with the first transmission thread is arranged on the outer wall of the transmission sleeve.

The telescopic tube is characterized in that an axial strip-shaped groove is formed in the outer side wall of the telescopic tube, and a sliding convex strip matched with the strip-shaped groove is arranged on the inner side wall of the lower tube body so as to limit the telescopic tube body to rotate when the lower tube body stretches.

Preferably, the outer wall of the lower tube body is provided with a pawl structure so as to limit the lower tube body from falling out of human tissues.

The lower pipe body is provided with a limiting block which can be abutted with the end face of the telescopic pipe to limit the telescopic pipe body to slide out of the lower pipe body at the position of the port of the telescopic pipe body.

The transmission piece comprises a transmission disc positioned at the upper end of the transmission sleeve, a transmission block is arranged on the upper surface of the transmission disc, and a transmission rod clamped with the transmission block is arranged on the lower surface of the knob cover.

The main body pipe is a stepped pipe with a thick upper part and a thin lower part, the lower part of the main body pipe is a through hole pipe, an internal thread is arranged on the inner side wall of the through hole pipe, and the internal thread is used for connecting and fixing the lower pipe body.

A convex ring is formed on the step surface on the inner side of the main body pipe, and an annular groove matched with the convex ring is formed on the transmission piece.

The outer side wall of main part pipe is provided with a plurality of concave structures that encircle a week and even, turn over downwards and form the lid edge on the knob lid upper surface, and the inside wall of lid edge is provided with a plurality of outer convex structures that evenly encircle a week and can with interior concave structure complex.

The utility model provides a knob lid, the lid of knob lid is provided with the bead of the rotatory knob lid of being convenient for along the lateral wall, be provided with the locking device that can restrict the rotation of knob lid on the lateral wall of main part pipe, locking device includes the retaining member and can remove the retaining member on the retaining member, works as the retaining member slides to when contacting with the bead, the retaining member can agree with the partial surface that the bead formed for after the retaining member joint bead, with the rotation of restriction knob lid.

The locking piece is provided with a sliding groove, the locking piece is provided with a sliding block capable of moving on the sliding groove, and the sliding groove does not penetrate through the locking piece so as to limit the sliding block to be separated from the sliding groove.

The beneficial effects of the utility model are as follows:

this buccal cavity vestibule puncture sleeve pipe has mainly realized the cap peak, but the flexible function of arc backup pad promptly, through rotatory knob lid, drive the drive sleeve pipe on the driving medium, the flexible pipe body at cap peak place is under the transmission of first transmission screw thread and second transmission screw thread, along the axial displacement of lower body, because the cooperation relation of bar recess and slip sand grip for flexible pipe body can not rotate at flexible in-process, and then the arc backup pad remains the same circumference position all the time when flexible, in order to prevent that flexible pipe body from stretching out lower body and leading to droing, the terminal surface of lower body is provided with stopper butt telescopic pipe's terminal surface. Before entering the oral cavity, the cap peak of the puncture sleeve is fully contracted in the lower tube body, so that the length of the puncture sleeve is reduced, a doctor can conveniently operate and position the puncture sleeve, and after the position of the lower tube body is fixed, the cap peak extends out again, so that the purposes of supporting skin and tissues and providing space for an endoscope and an operation are achieved.

The knob cover which controls the cap brim to stretch out and draw back is positioned at the uppermost end of the puncture sleeve, so that the operation of doctors is more convenient, the knob cover is matched with the main pipe body, and when the knob cover is rotated, the knob cover is matched with a plurality of surrounding concave structures and convex structures, the concave structures and the convex structures repeatedly change in the fitting and separating processes under the elastic deformation of the edge of the knob cover or the elastic deformation of the outer wall of the main pipe, so that the damping sense can be properly increased when the knob cover is rotated, and the movement of the knob cover in the axial direction can be limited; after the extension length of the cap peak is adjusted, the position of the knob cover is fixed through the locking device, the knob cover is limited to rotate, the knob cover is only required to slide the sliding block to be matched with the surface of the convex edge, the interference fit relation between the sliding groove and the sliding block is utilized, the function of temporarily fixing the knob cover can be achieved, and the operation is simple and convenient.

Compared with the traditional puncture cannula, the puncture cannula driving medium with the telescopic cap peak and the telescopic tube body are designed inside the main tube body and the lower tube body, so that the extension of the cap peak is realized, the size and the appearance of the puncture cannula are not changed, and the subsequent operation after the puncture cannula is inserted into the oral cavity is not hindered by the exposure of obvious parts and the operation space. When the doctor operates the oral cavity vestibule puncture cannula with the telescopic cap peak, due to the fact that the initial length is short, the doctor can conveniently find a proper position to insert the cannula, after the cannula is inserted, the extending length of the cap peak can be conveniently adjusted according to the oral cavity internal environments of different patients, and operation is greatly facilitated.

Drawings

FIG. 1 is a schematic view of the external structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a cross-sectional view of the telescoping tube body of the present utility model in a fully collapsed condition;

FIG. 4 is a cross-sectional view of the telescopic body of the present utility model in a fully extended position;

FIG. 5 is a schematic view of the outer appearance of the telescoping tube body;

FIG. 6 is a schematic view of the appearance of the lower tubular body;

FIG. 7 is a schematic view of the exterior of the transmission;

FIG. 8 is a schematic view of an exterior view of another perspective of a driving member;

FIG. 9 is an external schematic view of the knob cover;

FIG. 10 is a schematic view of the knob cover mated with the driver;

FIG. 11 is a schematic view of the appearance of a primary tubular body;

FIG. 12 is a schematic view of the appearance of another view of the primary body;

FIG. 13 is a schematic view of a latch and latch;

fig. 14 is a schematic view of the engagement of the locking bar with the surface of the rib.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

Referring to fig. 2, the utility model provides an oral cavity puncture cannula with a telescopic cap, which comprises a main tube body 1, a lower tube body 2 arranged at the lower end of the main tube body 1 and capable of entering the skin of a human body, a telescopic tube body 3 arranged in the lower tube body 2, and a knob cover 4 arranged at the upper end of the main tube body 1, wherein one side of the lower end of the telescopic tube body 3 extends to form an arc-shaped supporting plate 30, and a transmission piece 5 for connecting the knob cover 4 and the telescopic tube body 3 is arranged in the main tube body 1, so that the telescopic tube body 3 can axially stretch along the lower tube body 2 when the knob cover 4 is rotated.

Referring to fig. 3, 5 and 7, the telescopic tube body 3 includes a telescopic tube 31, a first transmission thread 32 is provided on an inner wall of the telescopic tube 31, the transmission member 5 includes a transmission tube 52, the telescopic tube body 3 is sleeved between an inner wall of the lower tube body 2 and an outer wall of the transmission tube 52, and a second transmission thread 520 matched with the first transmission thread 32 is provided on an outer wall of the transmission tube 52.

Referring to fig. 5 and 6, an axial bar-shaped groove 33 is provided on the outer side wall of the telescopic tube 52, and a sliding protruding strip 21 matching with the bar-shaped groove 33 is provided on the inner side wall of the lower tube 2, so as to limit the rotation of the telescopic tube 3 when telescoping in the lower tube 2.

Referring to fig. 2, preferably, a pawl structure 20 is provided on the outer wall of the lower tube body 2 to limit the escape of the lower tube body 2 from human tissue.

Referring to fig. 6, a stopper 22 capable of abutting against an end surface of the telescopic tube 31 to restrict the telescopic tube 3 from sliding out of the lower tube 2 is provided at a port of the lower tube 2 where the telescopic tube 3 extends.

Referring to fig. 7 and 9, the driving member 5 includes a driving disc 50 located at an upper end of the driving sleeve 52, a driving block 500 is disposed on an upper surface of the driving disc 50, and a driving rod 40 engaged with the driving block 500 is disposed on a lower surface of the knob cover 4.

Referring to fig. 11 and 12, the main pipe body 1 is a stepped pipe with a thick upper portion and a thin lower portion, the lower portion of the main pipe body 1 is a through hole pipe 11, and an inner thread is provided on an inner side wall of the through hole pipe 11, and is used for connecting and fixing the lower pipe body 2.

Referring to fig. 8 and 11, a convex ring 110 is formed on the step surface of the inner side of the main pipe body 1, and an annular groove 53 which is matched with the convex ring 110 is formed on the transmission member 5.

Referring to fig. 9 and 11, the outer side wall of the main pipe body 1 is provided with a plurality of concave structures 13 which encircle a circle and are uniform, the upper surface of the knob cover 4 is turned down to form a cover edge, and the inner side wall of the cover edge is provided with a plurality of convex structures 42 which encircle a circle uniformly and can be matched with the concave structures 13.

Preferably, the concave surface of the concave structure 13 is a part of a sphere or an elliptical sphere, and the convex surface of the convex structure 42 is a part of a sphere or an elliptical sphere.

Further, when the knob cover 4 is rotated, the concave structure 13 and the convex structure 42 repeatedly change in engagement and disengagement under the elastic deformation of the cover edge of the knob cover 4 or the elastic deformation of the outer wall of the main pipe body 1, and the movement of the knob cover 4 in the axial direction can be restricted while the damping feeling is properly increased when the knob cover 4 is rotated.

As another embodiment, the concave structure 13 may be disposed on the outer side wall of the knob cover 4, and the convex structure 42 may be disposed on the outer side wall of the main tube body 1.

The cover of knob lid 4 is provided with the bead 41 of the rotatory knob lid of being convenient for along the lateral wall, be provided with the locking device 6 that can restrict the rotation of knob lid 4 on the lateral wall of the main pipe body 1, locking device 6 includes retaining member 61 and locking piece 60 that can remove on retaining member 61, when locking piece 60 slides to contact with bead 41, locking piece 60 can agree with the partial surface that bead 41 formed for after locking piece 60 joint bead 41, with the rotation of restriction knob lid 4.

The locking member 61 is provided with a sliding groove 610, and the locking member 60 is provided with a sliding block 602 capable of moving on the sliding groove 610, wherein the sliding groove 610 does not penetrate the locking member 61 to limit the sliding block 602 from being separated from the sliding groove 610.

Further, this oral cavity vestibule puncture sleeve pipe has mainly realized the cap peak, but the flexible function of arc backup pad 30 promptly, through rotatory knob lid 4, drive the drive sleeve 52 on the driving medium 5, the flexible pipe body 3 at cap peak place is under the transmission of first transmission screw thread 32 and second transmission screw thread 520, along the axial displacement of lower body 2, because the cooperation relation of bar recess 33 and slip sand grip 21 for flexible pipe body 3 can not rotate at flexible in-process, and then arc backup pad 30 remains the same circumference position when flexible all the time, in order to prevent flexible pipe body 3 to stretch out lower body 2 and lead to droing, the terminal surface of lower body 2 is provided with stopper 22 butt flexible sleeve 31's terminal surface. Before entering the oral cavity, the cap peak of the puncture sleeve is fully contracted in the lower tube body 2, so that the length of the puncture sleeve is reduced, the operation and the positioning of doctors are facilitated, and after the position of the lower tube body 2 is fixed, the cap peak extends out again, so that the purposes of supporting skin and tissues and providing space for an endoscope and an operation are achieved.

The knob cover 4 for controlling the expansion and contraction of the cap peak is positioned at the uppermost end of the puncture sleeve, so that the operation of doctors is facilitated, the knob cover 4 is matched with the main pipe body 2, and when the knob cover 4 is rotated, the knob cover 4 is mainly matched with the outer convex structure 42 through a plurality of surrounding concave structures 13 arranged on the knob cover 4, the concave structures 13 and the outer convex structure 42 repeatedly change in the engaging and disengaging process under the elastic deformation of the cover edge of the knob cover 4 or the elastic deformation of the outer wall of the main pipe body 1, and the damping sense can be properly increased when the knob cover 4 is rotated, and meanwhile, the movement of the knob cover 4 in the axial direction can be limited; after the extension length of the cap peak is adjusted, the position of the knob cover 4 is fixed through the locking device 6, the rotation of the knob cover is limited, the sliding block 602 is only required to be slid to be matched with the surface of the convex rib 41, the interference fit relation between the sliding groove 610 and the sliding block 602 is utilized, the function of temporarily fixing the knob cover 4 can be achieved, and the operation is simple and convenient.

Compared with the traditional puncture cannula, the puncture cannula transmission part 5 with the telescopic cap peak and the telescopic tube body 3 are designed inside the main tube body 1 and the lower tube body 2, so that the extension and retraction of the cap peak are realized, the size and the appearance of the puncture cannula are not changed, and the subsequent operation after the oral cavity is inserted into the puncture cannula does not cause the exposure of obvious parts and the obstruction of an operation space. When the doctor operates the oral cavity vestibule puncture cannula with the telescopic cap peak, due to the fact that the initial length is short, the doctor can conveniently find a proper position to insert the cannula, after the cannula is inserted, the extending length of the cap peak can be conveniently adjusted according to the oral cavity internal environments of different patients, and operation is greatly facilitated.

Claims (10)

1. The utility model provides an oral cavity vestibule puncture sleeve with scalable brim of a hat, its characterized in that includes main body (1), installs at main body (1) lower extreme and can get into human subcutaneous lower body (2), sets up flexible pipe body (3) in lower body (2) to and install knob lid (4) in main body (1) upper end, one side of flexible pipe body (3) lower extreme extends and forms arc backup pad (30), install transmission piece (5) of connecting knob lid (4) and flexible pipe body (3) in main body (1) to when making rotatory knob lid (4), flexible pipe body (3) can be along lower body (2) axial extension.

2. An oral cavity puncture cannula with a retractable cap according to claim 1, characterized in that the telescopic tube body (3) comprises a telescopic tube (31), a first transmission thread (32) is arranged on the inner wall of the telescopic tube (31), the transmission member (5) comprises a transmission tube (52), the telescopic tube body (3) is sleeved between the inner wall of the lower tube body (2) and the outer wall of the transmission tube (52), and a second transmission thread (520) matched with the first transmission thread (32) is arranged on the outer wall of the transmission tube (52).

3. An oral vestibule puncture cannula with a retractable cap according to claim 2, characterized in that an axial bar-shaped groove (33) is arranged on the outer side wall of the retractable tube (31), and a sliding convex strip (21) matched with the bar-shaped groove (33) is arranged on the inner side wall of the lower tube body (2) so as to limit the rotation of the retractable tube body (3) when the retractable tube body (2) is retracted.

4. An oral vestibule puncture cannula with a retractable cap according to claim 1, characterized in that a limiting block (22) which can be abutted with the end face of the retractable cannula (31) to limit the retractable cannula body (3) from sliding out of the lower cannula body (2) is arranged at the position of the port of the lower cannula body (2) extending out of the retractable cannula body (3).

5. An oral vestibule puncture cannula with a retractable visor according to claim 2, characterized in that the transmission member (5) comprises a transmission disc (50) positioned at the upper end of the transmission cannula (52), a transmission block (500) is arranged on the upper surface of the transmission disc (50), and a transmission rod (40) clamped with the transmission block (500) is arranged on the lower surface of the knob cover (4).

6. An oral cavity puncture cannula with a retractable cap peak according to claim 1, characterized in that the main tube body (1) is a stepped tube with a thick upper part and a thin lower part, the lower part of the main tube body (1) is a through hole tube (11), and the inner side wall of the through hole tube (11) is provided with an internal thread for connecting and fixing the lower tube body (2).

7. An oral cavity puncture cannula with a retractable visor according to claim 6, characterized in that a convex ring (110) is formed on the step surface on the inner side of the main tube body (1), and an annular groove (53) matched with the convex ring (110) is arranged on the transmission member (5).

8. An oral vestibule puncture cannula with a retractable cap peak according to claim 1, characterized in that the outer side wall of the main tube body (1) is provided with a plurality of concave structures (13) which encircle a circle and are uniform, the upper surface of the knob cover (4) is turned down to form a cover edge, and the inner side wall of the cover edge is provided with a plurality of convex structures (42) which encircle a circle uniformly and can be matched with the concave structures (13).

9. An oral vestibule puncture cannula with a retractable cap according to claim 8, characterized in that the cover of the knob cover (4) is provided with a rib (41) along the outer side wall for facilitating the rotation of the knob cover (4), the outer side wall of the main tube body (1) is provided with a locking device (6) for limiting the rotation of the knob cover (4), the locking device (6) comprises a locking member (61) and a locking member (60) capable of moving on the locking member (61), and when the locking member (60) slides to contact with the rib (41), the locking member (60) can be engaged with a part of the surface formed by the rib (41) so that after the locking member (60) is clamped with the rib (41), the rotation of the knob cover (4) is limited.

10. An oral vestibule puncture cannula with a retractable visor according to claim 9, wherein the locking member (61) is provided with a sliding groove (610), the locking member (60) is provided with a sliding block (602) capable of moving on the sliding groove (610), and the sliding groove (610) does not penetrate the locking member (61) to limit the sliding block (602) from being separated from the sliding groove (610).