CN216257683U

CN216257683U - Operating handle and have its vascular support release

Info

Publication number: CN216257683U
Application number: CN202123324036.XU
Authority: CN
Inventors: 张小武; 康小然; 蔡文彬; 武效金; 顾玲玉
Original assignee: Sano Shenchang Medical Technology Co ltd
Current assignee: Sano Shenchang Medical Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-12
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to the field of medical instruments, in particular to an operating handle and a vascular stent release device with the operating handle. An operating handle comprising: the rotary sleeve is internally sleeved with a guide rail, and two ends of the guide rail are respectively connected with the two stop blocks; a first sliding block and a second sliding block are arranged in the guide track in a sliding manner, and external threads used for being in threaded fit with the inner wall of the rotary sleeve are respectively arranged on the outer walls of the first sliding block and the second sliding block; the first sliding block is suitable for being fixedly connected with a middle pipe extending into the support, and the second sliding block is suitable for being fixedly connected with an outer pipe restrained outside the support. Through the drive swivel sleeve, drive the inside first slider and the second slider of swivel sleeve and carry out the relative slip along the axial, make the well pipe of connecting first slider and the outer tube of connecting the second slider carry out the relative movement in the axial, release or retrieve the support between the distal end of well pipe and outer tube.

Description

Operating handle and have its vascular support release

Technical Field

The utility model relates to the field of medical instruments, in particular to an operating handle and a vascular stent release device with the operating handle.

Background

In recent years, the incidence of atherosclerotic stenosis in China is increased, and the active and effective treatment of intracranial arterial stenosis has important significance for preventing and treating stroke. At present, atherosclerotic lesion prevention usually adopts control of vascular risk factors, anti-platelet, anti-coagulation, anti-high pressure treatment and the like, but has a difficult satisfactory curative effect on treatment of arterial lesions. With the progress of the technology, the angioplasty and stent placement become effective means for treating arterial stenosis due to the advantages of safety, reliability, small injury and definite curative effect. However, the doctor needs to perform the operation with both hands when releasing and retrieving the stent, and there is a problem that the operation process is complicated and it is difficult to release the stent accurately.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to overcome the defects that the prior art intravascular stent release device requires two hands to operate during use, and has a complex operation process and is difficult to release accurately, so as to provide an operation handle and an intravascular stent release device with the same.

In order to solve the above problems, the present invention provides an operating handle comprising:

the rotary sleeve is internally sleeved with a guide rail, and two ends of the guide rail are respectively connected with the two stop blocks;

a first sliding block and a second sliding block are arranged in the guide track in a sliding mode, and external threads used for being in threaded fit with the inner wall of the rotary sleeve are arranged on the outer walls of the first sliding block and the second sliding block respectively;

the first sliding block is suitable for being fixedly connected with a middle pipe extending into the support, and the second sliding block is suitable for being fixedly connected with an outer pipe restrained outside the support.

Optionally, the pitch of the first internal thread for matching with the first sliding block and the second internal thread for matching with the second sliding block on the inner wall of the rotating sleeve are different.

Optionally, the centers of the first slider and the second slider are respectively provided with a through hole for passing through the inner pipe and the middle pipe.

Optionally, a first connecting rod extending towards the proximal end is connected to the first sliding block, and a first locking member is connected to an end of the first connecting rod and used for clamping and connecting the middle pipe and the inner pipe.

Optionally, a second connecting rod extending towards a distal end is connected to the second slider, a hemostatic valve is connected to an end of the second connecting rod, and the outer tube is fixedly connected to the hemostatic valve.

Optionally, the guide track has a sliding channel therein for accommodating the first slider and the second slider.

Optionally, the side wall of the sliding channel is provided with a slot for extending out of the external threads of the first slider and the second slider, and the slot is provided with at least two symmetrically arranged slots.

Optionally, the inner wall of the sliding channel is provided with at least two limiting grooves for embedding the first sliding block and the second sliding block, and the at least two limiting grooves are symmetrically arranged.

Optionally, the cross section of the limiting groove in the sliding channel is arc-shaped.

Also provided is a release device for a blood vessel stent, which comprises the operating handle and further comprises: outer tube, cover are established well intraductal well pipe in the outer tube and are established the intraductal inner tube in well, well pipe with among the operating handle first slider fixed connection, the outer tube with among the operating handle second slider fixed connection revolves soon rotatory cover among the operating handle can make the outer tube with well pipe carries out axial direction's relative slip.

The technical scheme of the utility model has the following advantages:

1. according to the operating handle provided by the utility model, the rotating sleeve is driven to drive the first sliding block and the second sliding block in the rotating sleeve to relatively slide along the axial direction, so that the middle pipe connected with the first sliding block and the outer pipe connected with the second sliding block relatively move in the axial direction, and the support arranged between the far ends of the middle pipe and the outer pipe is released or recycled; because the rotary sleeve is coaxial setting with the dog that blocks at the rotary sleeve both ends, consequently when operating the rotary sleeve, can realize one-hand operation, and because first slider and second slider in the rotary sleeve are driven for being simultaneously, consequently, can make the operation more simple and convenient, because the rotary sleeve is screw-thread fit with first slider and second slider respectively, consequently, when the first slider of rotatory drive and second slider through the rotary sleeve remove, can make the operation more accurate, in order to reach the effect to the accurate release of support.

2. According to the operating handle provided by the utility model, the first internal thread matched with the first sliding block and the second internal thread matched with the second sliding block on the inner wall of the rotating sleeve have different screw pitches, and the different screw pitches are suitable for different types of supports, so that the supports are accurately positioned. Because the extension rate of the bracket of each specification is different, and the forward pushing speed and the backward withdrawing speed of the outer tube are not in direct proportion when the bracket is released, the first internal thread and the second internal thread with different screw pitches realize the accurate positioning of the bracket.

3. According to the operating handle provided by the utility model, through holes for penetrating through the inner pipe and the middle pipe are respectively formed in the centers of the first sliding block and the second sliding block, and the middle pipe and the inner pipe are fixedly connected with the first sliding block at the near end after penetrating through the first sliding block and the second sliding block by the through hole design.

4. According to the operating handle provided by the utility model, the first sliding block is connected with the first connecting rod extending towards the near end, the end part of the first connecting rod is connected with the first locking piece, the first locking piece is used for clamping and connecting the middle pipe and the inner pipe, and the first locking piece is used for locking the first sliding block and the middle pipe.

5. According to the operating handle provided by the utility model, the second slider is connected with the second connecting rod extending towards the far end, the end part of the second connecting rod is connected with the hemostatic valve, and the outer tube is fixedly connected with the hemostatic valve. Through the connection of hemostasis valve to realize being connected between second slider and the outer tube, still can seal the space between well pipe and outer tube simultaneously, avoid blood to flow out by the space between well pipe and outer tube.

6. The operating handle provided by the utility model has the advantages that the guide track is internally provided with the sliding channel for accommodating the first sliding block and the second sliding block, and the sliding channel is used for enabling the first sliding block and the second sliding block to slide in the guide track when being matched with the internal thread.

7. According to the operating handle provided by the utility model, the side wall of the sliding channel is provided with at least two symmetrically arranged slots for extending out of the external threads of the first sliding block and the second sliding block, and the external threads and the internal threads are matched conveniently due to the arrangement of the slots.

8. According to the operating handle provided by the utility model, the inner wall of the sliding channel is provided with the limiting grooves embedded with the first sliding block and the second sliding block, the number of the limiting grooves is at least two, the limiting grooves are symmetrically arranged, and the cross sections of the limiting grooves are arc-shaped. The design of spacing groove is used for restricting the slip of first slider and second slider, and the cross section is the arc so that first slider and second slider can freely slide in the slip passageway.

9. The utility model provides a release device for a vascular stent, which comprises an operating handle, an outer tube, a middle tube sleeved in the outer tube and an inner tube sleeved in the middle tube, wherein the middle tube is fixedly connected with a first sliding block in the operating handle, the outer tube is fixedly connected with a second sliding block in the operating handle, and a rotating sleeve in the operating handle is screwed to realize the axial relative sliding of the outer tube and the middle tube, so that the accurate release of the stent is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of an operating handle provided in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a first slider provided in an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a second slider provided in the embodiment of the present invention.

Fig. 4 is a schematic structural view of the rotary sleeve shown in fig. 1.

Fig. 5 is a schematic structural view of a first stopper, a guide passage, and a second stopper provided in an embodiment of the present invention.

Fig. 6 is a schematic structural view of a first stopper, a guide passage, and a second stopper provided in an embodiment of the present invention.

Description of reference numerals: 1. a hemostatic valve; 2. a second stopper; 3. a rotating sleeve; 4. a first stopper; 5. a first locking member; 6. a first internal thread; 7. a second internal thread; 8. a first clamp post; 9. a second connecting rod; 10. a second slider; 11. a through hole; 12. a first slider; 13. a first connecting rod; 14. a guide rail; 15. grooving; 16. a second clamping column; 17. a limiting groove; 18. a slide channel.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides an operating handle, which is used for screwing the operating handle to realize the relative movement between an outer tube and the inner tube and accurately release a braided stent when the intravascular stent operation is performed.

As shown in fig. 1, the operating handle provided by the present invention comprises a rotating sleeve 3 and stoppers stopped at two ends of the rotating sleeve 3, wherein a guide rail 14 is sleeved in the rotating sleeve 3, and two ends of the guide rail 14 are respectively connected to the two stoppers; a first sliding block 12 and a second sliding block 10 are arranged in the guide track 14 in a sliding manner, and external threads for being in threaded fit with the inner wall of the rotary sleeve 3 are respectively arranged on the outer walls of the first sliding block 12 and the second sliding block 10; the first slider 12 is suitable for being fixedly connected with a middle tube for extending into the interior of the support and the second slider 10 is suitable for being fixedly connected with an outer tube for being constrained outside the support.

The first sliding block 12 and the second sliding block 10 in the rotary sleeve 3 are driven to relatively slide along the axial direction by driving the rotary sleeve 3, so that the middle pipe connected with the first sliding block 12 and the outer pipe connected with the second sliding block 10 relatively move in the axial direction, and the support arranged between the far ends of the middle pipe and the outer pipe is released or recycled; because the rotary sleeve 3 is coaxial setting with the dog that blocks at 3 both ends of rotary sleeve, consequently when operating rotary sleeve 3, can realize one-hand operation, and because first slider 12 and second slider 10 in rotary sleeve 3 are driven for the while, consequently, can make the operation more simple and convenient, because rotary sleeve 3 is screw-thread fit with first slider 12 and second slider 10 respectively, consequently, when the first slider 12 of rotary drive and second slider 10 through rotary sleeve 3 remove, can make the operation more accurate, in order to reach the effect to the accurate release of support.

As shown in fig. 1, the operating handle comprises a hemostatic valve 1, a first stop dog 4, a rotary sleeve 3, a second stop dog 2 and a first locking member 5, which are sequentially connected from a far end to a near end, wherein the first stop dog 4 and the second stop dog 2 are arranged at two ends of the rotary sleeve 3 to play a role in blocking, the hemostatic valve 1 is fixedly connected with an outer tube outside the bracket, the first locking member 5 is fixedly connected with a middle tube inside the bracket, and the middle tube and the inner tube are relatively moved by rotating the rotary sleeve 3.

As shown in fig. 2, a first connecting rod 13 extending towards the proximal end is connected to the first slider 12, a first locking member 5 is connected to an end of the first connecting rod 13, and the first locking member 5 is used for clamping the middle pipe and the inner pipe to realize synchronous movement between the middle pipe and the inner pipe.

As shown in fig. 3, a second connecting rod 9 extending towards the distal end is connected to the second slider 10, the end of the second connecting rod 9 is connected to the hemostatic valve 1, and the outer tube is fixedly connected to the hemostatic valve 1, so as to achieve the fixed connection between the slider and the outer tube. The relative movement between the outer pipe and the middle pipe is realized through the relative movement of the first slide block 12 and the second slide block 10. In addition, the centers of the first sliding block 12 and the second sliding block 10 are respectively provided with a through hole 11 for penetrating the inner pipe and the middle pipe, so that the middle pipe and the inner pipe are fixed with the first locking piece 5 after penetrating through the first sliding block 10 and the second sliding block 12.

As shown in fig. 4, the two split rotary sleeves 3 are clamped and connected by the first clamping column 8, and the split rotary sleeves 3 are easy to disassemble and assemble and convenient for operators to use. The inner wall of the rotary sleeve 3 is provided with a first internal thread 6 matched with the first sliding block 12 and a second internal thread 7 matched with the second sliding block 10, and the thread directions and the thread pitches of the first internal thread 6 and the second internal thread 7 are different. The opposite thread direction of the first internal thread 6 to the second internal thread 7 is designed such that the first slider 12 and the second slider 10 rotate in different directions when screwing the rotary sleeve 3, so as to achieve a relative movement. The different pitch designs of first internal thread 6 and second internal thread 7 to make first slider 12 and second slider 10 relative movement's distance different according to the difference of support type, realize carrying out accurate location to the support, the percentage of elongation that combines the support fixes a position the release more accurately.

As shown in fig. 5, a guide rail 14 is disposed in the rotary sleeve 3 between the first stopper 4 and the second stopper 2, and the first stopper 4, the guide rail 14 and the second stopper 2 may be integrally formed to facilitate integral processing. The guide track 14 has a sliding channel 18 for accommodating the first slider 12 and the second slider 10 therein, and the guide track 14 is used for the first slider 12 to be matched with the first internal thread 6 in the rotary sleeve 3 and the second slider 10 to slide when being matched with the second internal thread 7 in the rotary sleeve 3. As an alternative embodiment, the first stop 4, the guide rail 14 and the second stop 2 may also be fixedly connected by means of gluing, welding or the like.

As shown in fig. 5, the first stopper 4, the guide rail 14 and the second stopper 2 are engaged by the second engaging column 16 to form a slot 15 having an external thread protruding from the first slider 12 and the second slider 10, and the slot 15 has two symmetrically arranged. The two symmetrically arranged slots 15 enable the external thread of the first slider 12 to be matched with the first internal thread 6 at two ends to improve the stability of the first slider 12 rotating in the rotary sleeve 3, and the external thread of the second slider 10 can be matched with the second internal thread 7 at two ends to improve the stability of the second slider 10 rotating in the rotary sleeve 3.

As shown in fig. 6, the guide track 14 has a sliding channel 18 therein for accommodating the first slider 12 and the second slider 10, and the sliding channel 18 is designed to facilitate the sliding of the first slider 12 and the second slider 10 when the first slider 12 and the second slider 10 are engaged with the internal thread in the rotary sleeve 3. The inner wall of the sliding channel 18 is provided with two limiting grooves 17 embedded into the first sliding block 12 and the second sliding block 10, the two limiting grooves 17 are symmetrically arranged, and the cross section of each limiting groove 17 is arc-shaped. The limiting groove 17 is designed to limit the sliding of the first sliding block 12 and the second sliding block 10, and has an arc-shaped cross section so that the first sliding block 12 and the second sliding block 10 can freely slide in the sliding channel 18.

Example 2

The embodiment provides a blood vessel stent releasing device which is used for realizing the relative movement between an outer tube and a tube by screwing an operating handle so as to accurately release a stent.

Still provide a thrombus support release, including above-mentioned operating handle, still include the outer tube, the cover is located well intraductal well pipe and the cover and is established the intraductal inner tube in well, well pipe and the first slider 12 fixed connection in the operating handle, and second slider 10 fixed connection in outer tube and the operating handle revolves the swivel mount 3 of twisting among the operating handle, carries out axial direction's relative movement through outer tube and well pipe to accurate release support.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. The operating handle is characterized by comprising a rotating sleeve (3) and stop blocks which stop at two ends of the rotating sleeve (3), wherein a guide rail (14) is sleeved in the rotating sleeve (3), and two ends of the guide rail (14) are respectively connected with the two stop blocks;

a first sliding block (12) and a second sliding block (10) are arranged in the guide track (14) in a sliding manner, and external threads used for being in threaded fit with the inner wall of the rotary sleeve (3) are respectively arranged on the outer walls of the first sliding block (12) and the second sliding block (10);

the first sliding block (12) is suitable for being fixedly connected with a middle pipe extending into the support, and the second sliding block (10) is suitable for being fixedly connected with an outer pipe restrained outside the support.

2. Operating handle according to claim 1, characterized in that the pitch of the first internal thread (6) on the inner wall of the rotary sleeve (3) for cooperation with the first slider (12) and the second internal thread (7) for cooperation with the second slider (10) is different.

3. Operating handle according to claim 1, characterized in that the centers of the first slider (12) and the second slider (10) have a through hole (11) for passing through the inner tube and the middle tube, respectively.

4. Operating handle according to claim 3, characterized in that a first connecting rod (13) extending towards the proximal end is connected to the first slider (12), and a first locking member (5) is connected to the end of the first connecting rod (13), the first locking member (5) being used for clamping connection of the middle tube and the inner tube.

5. Operating handle according to any of claims 1-4, characterized in that a second connecting rod (9) extending towards the distal end is connected to the second slider (10), a haemostatic valve (1) is connected to the end of the second connecting rod (9), and the outer tube is fixedly connected to the haemostatic valve (1).

6. Operating handle according to any of claims 1-4, characterized in that the guide track (14) has a sliding channel (18) therein for accommodating the first slider (12) and the second slider (10).

7. The operating handle according to claim 6, wherein the side wall of the sliding channel (18) has a slot (15) for protruding the external thread of the first slider (12) and the second slider (10), the slot (15) having at least two symmetrically arranged.

8. The operating handle according to claim 6, wherein the inner wall of the sliding channel (18) is provided with a limiting groove (17) for embedding the first slider (12) and the second slider (10), and the limiting groove (17) is provided with at least two symmetrically arranged limiting grooves.

9. Operating handle according to claim 8, characterized in that the cross-section of the limiting groove (17) in the sliding channel (18) is arc-shaped.

10. A stent delivery device, comprising: the operating handle of any of claims 1-9, further comprising: outer tube, cover are established well intraductal well pipe in the outer tube and are established the intraductal inner tube in well, well pipe with among the operating handle first slider (12) fixed connection, the outer tube with among the operating handle second slider (10) fixed connection revolves soon swivel sleeve (3) among the operating handle can make the outer tube with well pipe carries out axial direction's relative slip.