Adjusting handle capable of being bent bidirectionally

Abstract

The utility model provides an adjusting handle capable of being bent bidirectionally. The adjusting handle comprises a shell, a connecting piece, a sliding assembly and an adjusting knob. The connecting piece is connected to the top of the shell and used for being connected with a catheter sheath, the sliding assembly comprises an upper sliding plate and a lower sliding plate which are connected with pull wires respectively, racks are arranged on the two opposite faces of the upper sliding plate and the lower sliding plate, a gear is arranged between the upper sliding plate and the lower sliding plate and meshed with the two racks, and the adjusting knob penetrates through a sliding groove formed in the shell and is connected to the upper sliding plate. The upper sliding plate can be driven to move synchronously only by pushing the adjusting button up and down, the lower sliding plate can move synchronously and reversely through meshing transmission of the gear and the rack, and the sliding plate moving downwards can pull the pull wire to conduct bending adjustment. The adjusting button is directly pushed up and down for bending adjustment, the pushing distance of the adjusting button is consistent with the pulling distance of the pull wire, the movement stroke does not need to be converted, the change of the bending adjustment section can be intuitively felt through the manual adjustment process, use is convenient, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to an adjusting handle capable of being bent in two directions. Background Art

[0002] The catheter sheath is an important auxiliary guiding device in interventional surgery. The catheter sheath is usually adjusted by an adjustment handle so that the special catheter can enter the diseased area in the body for diagnosis and local treatment. The adjustment handles currently on the market, such as the bidirectionally adjustable medical catheter disclosed in patent CN116172689B, are adjusted by pulling the traction line through the rotation of the rotating part. This adjustment method converts the rotary motion into linear motion. There is an efficiency conversion problem in the adjustment process, which makes it more laborious to use, the hand feel is not good, and the change of the bending section cannot be intuitively felt. At the same time, the structure is relatively complicated.

[0003] In view of this, the applicant filed this application after studying the existing technology. Utility Model Content

[0004] The utility model provides an adjusting handle capable of bidirectional bending, aiming to improve at least one of the above technical problems.

[0005] In order to solve the above technical problems, the utility model provides an adjustable handle capable of bidirectional bending, comprising:

[0006] A housing, wherein the housing is provided with a slide groove extending in the axial direction;

[0007] A connector, connected to the top of the housing, used for connecting and fixing the catheter sheath;

[0008] A sliding assembly is slidably arranged inside the shell, and includes an upper slide plate, a lower slide plate, and a gear. The upper slide plate and the lower slide plate are respectively connected to a traction line of a catheter sheath. Racks are respectively arranged on two surfaces close to the upper slide plate and the lower slide plate. The gear is connected to the shell through a rotating shaft, and is placed between the upper and lower slide plates, and meshes with the two racks.

[0009] An adjusting button is connected to the upper slide plate through a sliding groove, and is used to push the upper slide plate to move axially, while driving the gear to rotate, thereby causing the lower slide plate to move in the opposite direction to the upper slide plate.

[0010] As a further optimization, the adjusting button includes a button and a connecting rod, the bottom of the button is fixedly connected to the connecting rod, and the connecting rod passes through the sliding groove and is connected to the upper slide plate.

[0011] As a further optimization, a countersunk hole is opened on the side wall of the upper slide plate close to the slide groove, and the connecting rod is slidably connected in the countersunk hole. A clamping block is provided on the connecting rod and a spring is sleeved thereon. One end of the spring abuts against the clamping block and the other end abuts against the stepped surface of the countersunk hole. The spring can press the clamping block tightly against the inner wall of the outer shell.

[0012] As a further optimization, the upper slide plate and the lower slide plate are abutted against each other to form a hollow cylinder, and one side of the abutting surface is concavely formed to form a mounting groove, and the rack and the gear are placed in the mounting groove.

[0013] As a further optimization, the ends of the upper slide plate and the lower slide plate are respectively connected with a fixing seat, and the side wall of the fixing seat abuts against the inner wall of the shell for guiding.

[0014] As a further optimization, the fixing seat is provided with a through hole groove, and a fixing piece for fixing the traction line is provided at the bottom.

[0015] As a further optimization, the top of the shell is symmetrically arranged with card slots, and the connecting member is provided with a buckle, and the connecting member is snap-connected to the top of the shell through the cooperation of the buckle and the card slot.

[0016] As a further optimization, a limiting block is provided on the inner side wall of the shell at one end close to the bottom.

[0017] As a further optimization, the outer shell is provided with a sheath, and a plurality of circular grooves are arranged on the sheath.

[0018] As a further optimization, the shell is provided with annular grooves at the top and bottom ends, and sealing rings are provided in the annular grooves for sealing.

[0019] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0020] The present application discloses a bidirectionally adjustable bending handle comprising a housing, a connector, a sliding assembly and an adjusting button. The sliding assembly comprises an upper and a lower slide plate respectively connected to a traction line, and racks are arranged on two opposite surfaces of the upper and lower slide plates, a gear is arranged between the upper and lower slide plates, the gear is meshed with the two racks, and the adjusting button is connected to the upper slide plate through a slide groove arranged on the housing. When adjusting the bending, the upper slide plate can be driven to move synchronously by simply pushing the adjusting button up and down, and the lower slide plate can be synchronously moved in the opposite direction through the meshing transmission of the gear and the rack, and the downward moving slide plate can pull the traction line to adjust the bending. Adjustment is performed directly through linear operation, and the distance pushed by the adjusting knob is consistent with the distance pulled by the traction line. The movement stroke does not need to be converted, and the change of the bending adjustment section can be intuitively felt through the manual adjustment process. It is easy to use and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of an adjustable handle capable of bidirectional bending according to the utility model;

[0023] Figure 2 It is a schematic diagram of the front cross-section structure of an adjusting handle capable of bidirectional bending of the utility model;

[0024] Figure 3 This is a schematic diagram of the exploded structure of an adjustable handle capable of bidirectional bending according to the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of a sliding component of an adjustable handle capable of bidirectional bending according to the utility model;

[0026] Figure 5 It is a schematic diagram of the side section structure of an adjustable handle capable of bidirectional bending according to the utility model;

[0027] Markings in the figure: 1-housing; 11-slide groove; 12-card slot; 13-limit block; 14-annular groove; 15-sealing ring; 2-connecting piece; 21-buckle; 22-mounting hole; 3-sliding assembly; 31-upper slide; 311-countersunk hole; 32-lower slide; 33-gear; 34-rack; 35-mounting groove; 36-fixing seat; 37-fixing piece; 361-hole groove; 37-fixing piece; 4-adjusting button; 41-button; 42-connecting rod, 421-card block; 422-spring; 5-sheath. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] Example

[0030] Depend on Figures 1 to 5 As shown, the embodiment of the utility model provides a bidirectionally adjustable handle, including a housing 1, a connector 2, a sliding assembly 3 and an adjusting button 4; two slots 12 are symmetrically provided on the top of the housing 1, and a slide slot 11 is provided on the side wall, and the length of the slide slot 11 extends along the axial direction. A buckle 21 is provided on the connector 2, and the connector 2 is connected to the top of the housing 1 through the cooperation of the buckle 21 and the slot 11. A mounting hole 22 for mounting a catheter sheath is provided on the connector 2, and at the same time, the traction line of the catheter sheath can pass through the mounting hole 22 and be connected to the sliding assembly 3. The sliding assembly 3 is slidably placed inside the shell 1, and includes an upper slide plate 31, a lower slide plate 32 and a gear 33. The upper and lower slide plates are respectively connected to a traction line of the catheter sheath. Racks 34 are arranged on the two adjacent surfaces of the upper slide plate 31 and the lower slide plate 32. The rack 34 is connected to the inner wall of the shell 1 through a rotating shaft, and is located between the upper and lower slide plates, and is meshed with the racks 34 on the upper and lower slide plates; the adjusting knob 4 is connected to the upper slide plate 31 through the sliding groove 11. Pushing the adjusting knob 4 upward or downward can synchronously drive the upper slide plate 31 to move axially. At the same time, through the meshing transmission, the gear 34 is rotated, thereby driving the lower slide plate 32 to move synchronously in the opposite direction. The downward moving slide plate can pull the traction line to bend the catheter sheath.

[0031] In this embodiment, by pushing the adjusting knob 4 up and down, the catheter sheath can be bent in two directions on the same plane, and the adjustment efficiency is high; the adjusting knob 4 and the upper and lower slides move in synchronous and equidistant straight lines, and the moving distance is consistent with the distance of pulling the traction line. The movement stroke does not need to be converted. During the manual adjustment process, the changes in the bending section can be intuitively felt. It is easy to use, has a simple structure, and is easy to produce and assemble.

[0032] Furthermore, the adjusting button 4 includes a button 41 and a connecting rod 42. The top surface of the button 41 is a curved surface that is higher in the front and lower in the back, and is slightly concave in the middle, which is convenient for finger-fitting operation and improves the hand feel; the top end of the connecting rod 42 is fixedly connected to the bottom of the button 41, and the bottom end passes through the slide groove 11 and is connected to the upper slide plate 31; the upper slide plate 31 is provided with a countersunk hole 311 on the side wall close to the slide groove 11. The diameter of the hole on the countersunk hole 311 is larger than the diameter of the small hole, and a stepped surface is formed between the two holes, and the connecting rod 42 is slidably connected in the countersunk hole 311; a clamping block 421 is provided on the connecting rod 42, and a spring 422 is sleeved thereon. One end of the spring 422 abuts against the clamping block 421, and the other end abuts against the stepped surface of the countersunk hole 311. The spring 422 can apply pressure to the clamping block 421 to press it tightly against the inner wall of the shell 1. By pressing the button 41, the block 421 is separated from the inner wall of the shell 1, and the spring 422 is compressed. At this time, the adjusting button 4 can be pushed to adjust the bend; after the ideal bend is adjusted, the button 41 is released, the spring 422 rebounds, and presses the block tightly against the inner wall of the shell 1, so that the two generate friction to lock the adjusting button 4, complete self-locking, and prevent the adjusting button 4 from moving, so that the bend of the catheter sheath changes.

[0033] Furthermore, the upper slide 31 and the lower slide 32 are abutted to form a hollow cylinder, the shape of which is compatible with the shell 1, so that the shell 1 can guide the movement of the slide, and the slide will not be offset inside the shell; the abutting surfaces of the upper and lower slides are respectively concave on one side to form a mounting groove 35, and the rack 34 and the gear 33 are both placed in the mounting groove.

[0034] Furthermore, the ends of the upper and lower slides are respectively connected to a fixing seat 36, which is provided with a through hole 361 and a fixing piece 37 for fixing the traction line at the bottom. After the traction line passes through the hollow cylinder, it passes through the hole 361 and the end is wrapped and fixed on the fixing piece 37.

[0035] Furthermore, a limiting block 13 is provided at one end of the inner wall of the housing 1 near the bottom to limit the downward movement of the upper and lower slides. At the same time, the connecting member 2 can limit the upward movement of the upper and lower slides.

[0036] Furthermore, a sheath 5 is provided on the outer surface of the housing 1, and a plurality of circular grooves are arranged on the sheath 5 to increase friction. The sheath 5 can be a silicone sheath.

[0037] Furthermore, the housing 1 is provided with annular grooves 14 at the top and bottom ends, and a sealing ring 15 is provided in the annular groove 14 for sealing between the housing 1 and the sheath 5 .

[0038] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bidirectionally adjustable handle, characterized in that: include: A housing, wherein the housing is provided with a slide groove extending in the axial direction; A connector, connected to the top of the housing, used for connecting and fixing the catheter sheath; A sliding assembly is slidably arranged inside the shell, and includes an upper slide plate, a lower slide plate, and a gear. The upper slide plate and the lower slide plate are respectively connected to a traction line of a catheter sheath. Racks are respectively arranged on two surfaces close to the upper slide plate and the lower slide plate. The gear is connected to the shell through a rotating shaft, and is placed between the upper and lower slide plates, and meshes with the two racks. An adjusting button is connected to the upper slide plate through a sliding groove, and is used to push the upper slide plate to move axially, while driving the gear to rotate, thereby causing the lower slide plate to move in the opposite direction to the upper slide plate.

2. The bidirectionally adjustable handle according to claim 1 is characterized in that The adjusting button includes a button and a connecting rod, the bottom of the button is fixedly connected to the connecting rod, and the connecting rod passes through the sliding groove and is connected to the upper sliding plate.

3. The bidirectionally adjustable handle according to claim 2 is characterized in that A countersunk hole is opened on the side wall of the upper slide plate close to the slide groove, and the connecting rod is slidably connected in the countersunk hole. A clamping block is provided on the connecting rod and a spring is sleeved thereon. One end of the spring abuts against the clamping block and the other end abuts against the stepped surface of the countersunk hole. The spring can press the clamping block tightly against the inner wall of the shell.

4. The bidirectionally adjustable handle according to claim 1 is characterized in that The upper slide plate and the lower slide plate are in contact with each other to form a hollow cylinder, and one side of the contact surface is concave to form an installation groove, and the rack and the gear are placed in the installation groove.

5. The bidirectionally adjustable handle according to claim 1 is characterized in that The ends of the upper slide plate and the lower slide plate are respectively connected to a fixing seat, the fixing seat is provided with a through hole groove, and a fixing piece for fixing the traction line is provided at the bottom.

6. The bidirectionally adjustable handle according to claim 1 is characterized in that The top of the shell is symmetrically arranged with card slots, and the connecting piece is provided with a buckle, and the connecting piece is snap-connected to the top of the shell through the buckle and the card slot.

7. The bidirectionally adjustable handle according to claim 1 is characterized in that The inner side wall of the shell is provided with a limit block at one end close to the bottom.

8. The bidirectionally adjustable handle according to claim 1 is characterized in that The outer shell is provided with a sheath, and a plurality of circular grooves are arranged on the sheath.

9. The bidirectionally adjustable handle according to claim 8, characterized in that The shell is provided with annular grooves at the top and bottom ends, and sealing rings are provided in the annular grooves for sealing.

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