Drainage tube delivery device

Abstract

The invention provides a drainage tube delivery device, and relates to the technical field of drainage tube implantation. The drainage tube delivery device comprises a shell, a puncture needle, a mounting seat, a push rod and a driving mechanism, the shell is provided with a first end and a second end which are opposite, and the puncture needle is arranged at the second end; the puncture needle is installed on the installation base, an inner cavity for containing the drainage tube is formed in the puncture needle, and the push rod can move in the length direction of the inner cavity; the driving mechanism comprises a sliding part and a driving assembly which are connected, the sliding part can move in the length direction of the shell, when the sliding part moves in the direction from the first end to the second end, the driving assembly has a first state, and when the sliding part moves in the direction from the second end to the first end, the driving assembly has a second state; in the first state, the driving assembly drives the push rod to move in the direction from the first end to the second end, and in the second state, the driving assembly drives the mounting base and the puncture needle to move in the direction from the second end to the first end. The drainage tube can be well implanted into the eye.

Description

Technical Field

[0001] The present application relates to the technical field of glaucoma drainage tube implantation, and in particular, to a drainage tube delivery device. Background Art

[0002] Glaucoma is an ophthalmic disease caused by impaired aqueous humor circulation inside the eyeball, which leads to increased intraocular pressure and further damage to the optic nerve. Long-term increased intraocular pressure can compress the optic nerve, causing symptoms such as blurred vision and eye pain. Glaucoma drainage valve implantation is an effective treatment for refractory glaucoma. Glaucoma drainage tube implantation is a new minimally invasive anti-glaucoma surgery that has the advantages of being minimally invasive, safe, efficient and quickly recovering. This surgery helps the aqueous humor to drain smoothly by implanting a drainage tube, thereby reducing intraocular pressure and protecting the optic nerve.

[0003] However, the diameter of the drainage tube is small, as thin as a hair, so it is quite challenging to implant the drainage tube into the eye. Summary of the invention

[0004] The embodiment of the present application provides a drainage tube delivery device, which can well implant the drainage tube into the eye.

[0005] The embodiment of the present application is implemented as follows: The present application provides a drainage tube delivery device, comprising: a housing having opposing first and second ends; A puncture needle is arranged at the second end; the puncture needle has an inner cavity, and the inner cavity is used for placing a drainage tube; A mounting seat, the mounting seat is arranged in the shell, and the puncture needle is installed on the mounting seat; A push rod capable of moving along the length of the inner cavity; and The driving mechanism includes a connected sliding member and a driving assembly, the sliding member can move along the length direction of the shell, and when the sliding member moves in the direction from the first end to the second end, the driving assembly can have a first state, and when the sliding member moves in the direction from the second end to the first end, the driving assembly can have a second state; in the first state, the driving assembly drives the push rod to move in the direction from the first end to the second end, and in the second state, the driving assembly drives the mounting seat and the puncture needle to move in the direction from the second end to the first end.

[0006] In a possible embodiment, the drive assembly has a first abutment portion, and the mounting seat has a second abutment portion. The first abutment portion and the second abutment portion can be interlocked and enable the drive assembly to drive the mounting seat and the puncture needle to move in a direction from the second end to the first end.

[0007] In a possible embodiment, the first abutment portion has a first inclined guide surface and a first abutment surface, and the second abutment portion has a second inclined guide surface and a second abutment surface. When the sliding member moves in a direction from the first end to the second end, the first inclined guide surface and the second inclined guide surface can abut against each other, and the first abutment portion can move relative to the second abutment portion; when the sliding member moves in a direction from the second end to the first end, the first abutment surface and the second abutment surface can abut against each other, so that the first abutment portion and the second abutment portion are buckled.

[0008] In a possible implementation manner, the first abutting surface and the second abutting surface are both parallel to the radial direction of the housing.

[0009] In a possible implementation manner, the inclination angles of the first inclined guiding surface and the second inclined guiding surface are equal.

[0010] In a possible embodiment, the drainage tube delivery device also includes a locking member, which can lock the mounting seat; the drive assembly includes an unlocking member, which is connected to the sliding member. When the sliding member moves in the direction from the first end to the second end, the unlocking member can move in the direction from the first end to the second end and separate the locking member from the mounting seat to unlock it.

[0011] In a possible embodiment, the mounting base is provided with a slot, and the locking piece can be locked in the slot to lock the mounting base, the inner wall of the shell has a groove arranged in alignment with the slot, and the other end of the locking piece is embedded in the groove; when the sliding piece moves in the direction from the first end to the second end, the unlocking piece can act on the locking piece, and the locking piece can move from the slot to the groove, and the locking piece can be separated from the mounting base.

[0012] In a possible embodiment, the locking member has a third abutment portion, which has a third abutment surface; one end of the unlocking member has a fourth abutment portion, which has a fourth abutment surface, and when the sliding member moves in the direction from the first end to the second end, the fourth abutment surface can abut against the third abutment surface and cause the locking member to move from the slot to the groove.

[0013] In a possible implementation manner, the third abutting surface is an arc surface convex toward the slot, and the fourth abutting surface is an inclined plane.

[0014] In a possible implementation manner, a compression spring is fixedly installed in the groove, and the compression spring is connected to one end of the locking member.

[0015] In a possible embodiment, the shell is provided with a first slot, which extends along the length direction of the shell; the mounting seat includes a toggle portion, which is penetrated and exposed in the first slot, and the toggle portion can move along the extension direction of the first slot and make the mounting seat and the puncture needle move in the direction from the first end to the second end.

[0016] In a possible embodiment, the drive assembly further includes a pushing component and a connecting member, wherein the pushing component is configured to be able to move along the length direction of the shell to push the push rod to move along the length direction of the inner cavity; the pushing component and the unlocking member are connected by the connecting member.

[0017] In a possible embodiment, the connecting member is rotatably connected to the shell through a first rotating shaft so that the connecting member can swing, and the connecting member is provided with an elongated hole along its length direction, and the pushing member and the unlocking member are respectively connected to the connecting member through a second rotating shaft and a third rotating shaft, and the second rotating shaft and the third rotating shaft can move along the extension direction of the elongated hole.

[0018] In a possible embodiment, the pushing component includes a pushing member and a slider, the pushing member is provided with a limiting channel, the length of the limiting channel is greater than the length of the slider, the slider is arranged in the limiting channel and can move in the limiting channel along the length direction of the shell, the pushing member is connected to the connecting member through a second rotating shaft, the push rod is installed on the slider, and the pushing member is configured to be able to push the slider to move along the length direction of the shell.

[0019] In a possible implementation manner, at least one set of sliding grooves is provided on the inner wall of the shell, and both the pushing member and the sliding block are slidably connected to the sliding grooves.

[0020] In a possible implementation, the shell is provided with a second slot along the length direction, the sliding member is provided outside the shell and can slide along the second slot, the second slot is provided with a supporting block to limit the sliding of the sliding member, and the supporting block is detachably installed in the second slot.

[0021] The embodiments of the present application have at least the following beneficial effects: The drainage tube delivery device of the present application drives the driving assembly through the sliding member, so that the driving assembly can drive the push rod to move in the direction from the first end to the second end, thereby pushing part or all of the drainage tube placed in the inner cavity of the puncture needle out of the puncture needle; and then drives the driving assembly through the sliding member, so that the driving assembly drives the mounting seat and the puncture needle to move in the direction from the second end to the first end, and the puncture needle retreats, and the puncture needle can withdraw from the eye without taking out the drainage tube, thereby implanting the drainage tube well into the eye. Since the entire implantation process of the drainage tube only requires operating the sliding member to move along the length direction of the shell, it is easy to operate during the operation and convenient for medical personnel to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of a drainage tube delivery device according to an embodiment of the present application; Figure 2 A schematic diagram of the structure of the drainage tube delivery device from another perspective of an embodiment of the present application; Figure 3 This is a schematic diagram of the internal structure of the drainage tube delivery device according to an embodiment of the present application; Figure 4 A schematic diagram of the internal structure of the drainage tube delivery device from another perspective of an embodiment of the present application; Figure 5 It is a schematic diagram of the internal structure of the drainage tube delivery device in another state of an embodiment of the present application; Figure 6 for Figure 5 A magnified image of area A; Figure 7 A schematic diagram of the cooperation between the locking member and the unlocking member; Figure 8 This is a schematic diagram of the internal structure of the drainage tube delivery device in another state of an embodiment of the present application; Fig. 9 This is a schematic diagram of the structure of the locking member of an embodiment of the present application; Fig.10 This is a schematic diagram of the internal structure of the drainage tube delivery device in yet another state of an embodiment of the present application.

[0024] Icons: 10-drainage tube delivery device; 11-housing; 111-first end; 112-second end; 113-groove; 115-first notch; 116-slide; 117-second notch; 12-puncture needle; 13-mounting seat; 131-second abutment portion; 1311-second abutment surface; 1312-second inclined guide surface; 132-slot; 133-sliding portion; 134-elastic sheet portion; 14-push rod; 15-driving mechanism; 16-sliding member; 17-driving assembly; 171-unlocking member; 171 1-fourth abutment portion; 17111-fourth abutment surface; 172-pushing member; 1721-pushing member; 17211-limiting channel; 1722-slider; 1723-first abutment portion; 17231-first abutment surface; 17232-first inclined guide surface; 173-connecting member; 174-long hole; 175-first rotating shaft; 176-second rotating shaft; 177-third rotating shaft; 18-locking member; 181-third abutment portion; 1811-third abutment surface; 182-locking block; 20-drainage tube. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. It is worth noting that the "end" in the terms "one end", "the other end", "the first end", "the second end", "both ends", "the upper end", "the lower end", etc. is not limited to the end, end point or end face, but also includes a portion extending from the end, end point or end face to the element to which the end, end point or end face belongs, and a certain axial distance and / or radial distance.

[0028] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Example

[0029] The present application embodiment provides a drainage tube delivery device 10, please refer to Figure 1-Figure 5 The device comprises a housing 11 , a puncture needle 12 , a mounting seat 13 , a push rod 14 and a driving mechanism 15 .

[0030] The housing 11 has a first end 111 and a second end 112 opposite to each other, and the puncture needle 12 is disposed at the second end 112. The puncture needle 12 has an inner cavity, and the inner cavity is used to place the drainage tube 20. The push rod 14 can move along the length direction of the inner cavity, so that part or all of the drainage tube 20 in the inner cavity can be pushed out of the puncture needle 12. In addition, the mounting seat 13 is disposed in the housing 11, and the puncture needle 12 is mounted on the mounting seat 13. Exemplarily, the housing 11 can be formed by connecting an upper shell and a lower shell, so as to facilitate assembly.

[0031] The driving mechanism 15 includes a connected sliding member 16 and a driving assembly 17. The sliding member 16 is disposed outside the housing 11 and can move along the length direction of the housing 11. When the sliding member 16 moves in the direction from the first end 111 to the second end 112, the driving assembly 17 can have a first state. When the sliding member 16 moves in the direction from the second end 112 to the first end 111, the driving assembly 17 can have a second state. Exemplarily, the sliding member 16 is an arc-shaped block and is slidably connected to the housing 11. In other embodiments, the sliding member 16 can also be in other shapes, such as a square block, a round block, etc., and the present application does not limit the specific shape of the sliding member 16.

[0032] The housing 11 is provided with a second notch 117 along the length direction, and the sliding member 16 can slide along the second notch 117. The second notch 117 is provided with a resisting block (not shown in the figure) to limit the sliding of the sliding member 16, and the resisting block is detachably mounted on the second notch 117. Before use, the resisting block remains mounted on the second notch 117. When the sliding member 16 needs to be operated to slide along the second notch 117, the resisting block can be removed from the second notch 117. The presence of the resisting block can prevent the sliding member 16 from being operated incorrectly.

[0033] In the first state, the driving assembly 17 drives the push rod 14 to move in a direction from the first end 111 to the second end 112 (refer to Figure 3 and Figure 5 In the second state, the drive assembly 17 drives the mounting seat 13 and the puncture needle 12 to move in the direction from the second end 112 to the first end 111 (refer to Figure 5 and Figure 8 ).

[0034] The drainage tube delivery device 10 of the present application, when in use, firstly inserts the puncture needle 12 into the target position in the eye, and then pushes the sliding member 16 to move and drive the driving assembly 17, so that the driving assembly 17 can drive the push rod 14 along the direction from the first end 111 to the second end 112 ( Figure 1The puncture needle 12 moves in the direction indicated by the arrow A in the middle), thereby partially or completely pushing the drainage tube 20 placed in the inner cavity of the puncture needle 12 out of the puncture needle 12; and then the driving assembly 17 is driven by the sliding member 16, so that the driving assembly 17 drives the mounting seat 13 and the puncture needle 12 along the direction from the second end 112 to the first end 111 ( Figure 1 The puncture needle 12 moves in the direction indicated by the arrow B in the middle of the eye, and the puncture needle 12 retreats, so that the puncture needle 12 can be withdrawn from the eye without taking out the drainage tube 20, thereby implanting the drainage tube 20 well into the eye. Since the entire implantation process of the drainage tube 20 only requires operating the sliding member 16 to move along the length direction of the housing 11, the operation is simple during the operation, and it is convenient for medical personnel to operate.

[0035] In addition, the drainage tube delivery device 10 further includes a sleeve (not shown in the figure), which is detachably mounted on the puncture needle 12, so as to prevent the puncture needle 12 from accidentally injuring the operator before use, and also prevent contamination of the puncture needle 12. When the drainage tube implantation operation is required, the sleeve can be removed.

[0036] In one embodiment, the driving assembly 17 includes a pushing member 172, which is configured to move along the length direction of the housing 11 to push the push rod 14 to move along the length direction of the inner cavity. Figure 5 and Figure 6 The pushing component 172 has a first abutting portion 1723, and the mounting seat 13 has a second abutting portion 131. The first abutting portion 1723 and the second abutting portion 131 can be engaged and enable the driving assembly 17 to drive the mounting seat 13 and the puncture needle 12 to move in the direction from the second end 112 to the first end 111. When the sliding member 16 moves along the length direction of the housing 11 and the first abutting portion 1723 and the second abutting portion 131 are engaged, the mounting seat 13 is connected to the pushing component 172, so that the sliding member 16 moves in the direction from the second end 112 to the first end 111, and the pushing component 172 of the driving assembly 17 can drive the mounting seat 13 and the puncture needle 12 to move in the direction from the second end 112 to the first end 111, so that the puncture needle 12 is withdrawn.

[0037] The first abutting portion 1723 has a first inclined guide surface 17232 and a first abutting surface 17231, and the second abutting portion 131 has a second inclined guide surface 1312 and a second abutting surface 1311. When the sliding member 16 moves in a direction from the first end 111 to the second end 112, the first inclined guide surface 17232 and the second inclined guide surface 1312 can abut against each other, and the first abutting portion 1723 can move relative to the second abutting portion 131. When the sliding member 16 moves in a direction from the second end 112 to the first end 111, the first abutting surface 17231 and the second abutting surface 1311 can abut against each other, so that the first abutting portion 1723 and the second abutting portion 131 are buckled. Exemplarily, the first abutting portion 1723 and the second abutting portion 131 are both triangular prisms. The first abutting surface 17231 is connected to the first inclined guide surface 17232, and the second abutting surface 1311 is connected to the second inclined guide surface 1312. In addition, the first abutting surface 17231 and the second abutting surface 1311 are parallel to the radial direction of the housing 11, and the first inclined guide surface 17232 and the second inclined guide surface 1312 have the same inclination angle. The second abutting portion 131 is connected to the main body of the mounting seat 13 through the elastic sheet portion 134. When the sliding member 16 moves in the direction from the first end 111 to the second end 112, the first inclined guide surface 17232 and the second inclined guide surface 1312 abut against each other, and the second abutting portion 131 is abutted and moves in the direction close to the inner wall of the housing 11 together with the elastic sheet portion 134. When the first inclined guide surface 17232 and the second inclined guide surface 1312 are offset, the second abutting portion 131 returns to its original position. When the sliding member 16 moves in the direction from the second end 112 to the first end 111, the first abutting surface 17231 and the second abutting surface 1311 abut against each other, so that the first abutting portion 1723 and the second abutting portion 131 are buckled.

[0038] It should be noted that the first abutment portion 1723 and the second abutment portion 131 can also be other shapes, such as a trapezoidal body, the first abutment surface 17231 and the first inclined guide surface 17232 are connected by a first connecting surface, and the second abutment surface 1311 and the second inclined guide surface 1312 are connected by a second connecting surface. Exemplarily, the first connecting surface and the second connecting surface are both parallel to the axis of the shell 11.

[0039] Further, the driving assembly 17 further includes a connecting member 173 and an unlocking member 171, the unlocking member 171 is connected to the sliding member 16, and the pushing member 172 and the unlocking member 171 are connected through the connecting member 173. Exemplarily, the pushing member 172 includes a pushing member 1721 and a sliding block 1722, the push rod 14 is mounted on the sliding block 1722, and the pushing member 1721 is configured to push the sliding block 1722 to move along the length direction of the housing 11.

[0040] Exemplarily, the push member 1721 has a limiting channel 17211, the length of the limiting channel 17211 is greater than the length of the slider 1722, the slider 1722 is disposed in the limiting channel 17211 and can move along the length direction of the housing 11, and when the push member 1721 moves along the length direction of the housing 11, it also pushes the slider 1722 to move along the length direction of the housing 11. When the push member 1721 moves in a direction from the first end 111 of the housing 11 to the second end 112, the slider 1722 presses against the inner wall of the limiting channel 17211 close to the first end 111 in the limiting channel 17211, and moves along the direction from the first end 111 of the housing 11 to the second end 112 together with the push member 1721 (refer to Figure 3 and Figure 5 ); When the push member 1721 moves along with the sliding member 16 in the direction from the second end 112 of the housing 11 to the first end 111, the puncture needle 12 is withdrawn, the slider 1722 remains stationary for a period of time, and the push rod 14 also remains stationary for a period of time (refer to Figure 8 ), when the slider 1722 is in the limiting channel 17211 and abuts against the inner wall of the limiting channel 17211 close to the second end 112, the slider 1722 and the push rod 14 move together with the sliding member 16 along the direction from the second end 112 of the housing 11 to the first end 111 (refer to Fig.10 When the puncture needle 12 is withdrawn and the push rod 14 remains stationary, it can better ensure that the drainage tube 20 is completely pushed out of the puncture needle 12.

[0041] Exemplarily, the inner wall of the housing 11 is provided with at least one group of slide grooves 116, and the pusher 1721 and the slider 1722 are both slidably connected to the slide grooves 116. It is understandable that when one group of slide grooves 116 is provided, the pusher 1721 and the slider 1722 are slidably connected to the same group of slide grooves 116; when two groups of slide grooves 116 are provided, the pusher 1721 and the slider 1722 can be slidably connected to different groups of slide grooves 116. Each group of slide grooves may include one slide groove 116 or two slide grooves 116 arranged opposite to each other.

[0042] In addition, the connecting member 173 is used to connect the unlocking member 171 and the pushing member 1721 of the pushing member 172, so that when the pushing member 172 moves along the length direction of the housing 11, the unlocking member 171 also moves along the length direction of the housing 11. The structure of the connecting member 173 is diverse. In one embodiment, the connecting member 173 is rotatably connected to the housing 11 through a first rotating shaft 175, so that the connecting member 173 can swing around the first rotating shaft 175. The connecting member 173 is provided with an elongated hole 174 along its length direction, the pushing member 1721 of the pushing member 172 is connected to the connecting member 173 through a second rotating shaft 176, and the unlocking member 171 is connected to the connecting member 173 and the sliding member 16 through a third rotating shaft 177. The second rotating shaft 176 and the third rotating shaft 177 are both provided in the elongated hole 174 and can move along the extending direction of the elongated hole 174. The push rod 14 is mounted on the slider 1722 , and the push member 1721 is configured to push the slider 1722 to move along the length direction of the housing 11 .

[0043] When the sliding member 16 moves along the length direction of the housing 11, it also drives the unlocking member 171 and the pushing member 1721 to move along the direction of the housing 11, and the connecting member 173 swings around the first rotating shaft 175. It should be noted that in other embodiments, the sliding member 16 may be connected to the pushing member 1721, and when the sliding member 16 moves along the length direction of the housing 11, it can also drive the pushing member 1721 and the unlocking member 171 to move along the length direction of the housing 11.

[0044] In addition, the drainage tube delivery device 10 further includes a locking member 18, which can lock the mounting seat 13 to prevent the mounting seat 13 from shaking. When the sliding member 16 moves in the direction from the first end 111 to the second end 112, the unlocking member 171 can move in the direction from the first end 111 to the second end 112 and separate the locking member 18 from the mounting seat 13 to unlock (refer to Figure 3 and Figure 5 ). Before the operation, the locking member 18 keeps the mounting seat 13 locked. After the puncture needle 12 is inserted into the target position in the eye, the operating sliding member 16 moves in the direction from the first end 111 to the second end 112, and the sliding member 16 drives the unlocking member 171 to move in the direction from the first end 111 to the second end 112, and the unlocking member 171 acts on the locking member 18 to separate the locking member 18 from the mounting seat 13. Then, when the operating sliding member 16 moves in the direction from the second end 112 to the first end 111, the mounting seat 13 can be withdrawn without being restricted by the locking member 18.

[0045] Exemplarily, the mounting seat 13 is provided with a slot 132, one end of the locking member 18 can be locked in the slot 132 to lock the mounting seat 13, the inner wall of the housing 11 has a groove 113 arranged in alignment with the slot 132, and the other end of the locking member 18 is embedded in the groove 113. Before operation, one end of the locking member 18 is locked in the slot 132, and the other end of the locking member 18 is arranged in the groove 113. When the sliding member 16 moves in the direction from the first end 111 to the second end 112, the unlocking member 171 can act on the locking member 18, and the locking member 18 moves from the slot 132 to the groove 113, and the locking member 18 is separated from the mounting seat 13. Among them, the unlocking member 171 acts on the locking member 18, the locking member 18 moves from the slot 132 to the groove 113, and the locking member 18 is separated from the mounting seat 13, so as to achieve unlocking.

[0046] In one embodiment, the locking member 18 has a third abutting portion 181, and the third abutting portion 181 has a third abutting surface 1811 (see Figure 7 ). One end of the unlocking member 171 has a fourth abutting portion 1711, and the fourth abutting portion 1711 has a fourth abutting surface 17111. When the sliding member 16 moves in a direction from the first end 111 to the second end 112, the fourth abutting surface 17111 can abut against the third abutting surface 1811 and make the locking member 18 move from the slot 132 to the groove 113. Exemplarily, the third abutting surface 1811 is an arc surface convex to the slot 132, and the fourth abutting surface 17111 is an inclined plane. When the sliding member 16 moves in a direction from the first end 111 to the second end 112, the fourth abutting surface 17111 translates in a direction from the first end 111 to the second end 112, and when the inclined plane moves against the third abutting surface 1811 of the arc surface, the locking member 18 moves from the slot 132 to the groove 113.

[0047] Exemplarily, the locking member 18 includes a locking block 182 and the third abutting portion 181 (see Fig. 9 ), the locking block 182 and the third abutting portion 181 are an integral structure. It is understandable that the locking block 182 can also be separately set from the third abutting portion 181 and then connected together. Among them, the end of the third abutting portion 181 close to the groove 113 is flush with the locking block 182, and the end of the third abutting portion 181 close to the slot 132 is lower than the height of the locking block 182 to form a step. When the locking member 18 moves from the slot 132 to the groove 113 and separates from the mounting seat 13, the fourth abutting portion 1711 moves to cross the third abutting portion 181. In addition, the third abutting portion 181 can also be configured to have a channel, and the end of the third abutting portion 181 close to the groove 113 is flush with the locking block 182, and the end of the third abutting portion 181 close to the slot 132 is also flush with the locking block 182, and the third abutting surface 1811 is formed on the inner wall of the channel.

[0048] Furthermore, a compression spring is installed in the groove 113, and the compression spring is connected to one end of the locking member 18. The compression spring forms a certain extrusion force on the locking member 18, and when the locking member 18 is clamped in the groove 113 of the housing 11, the locking member 18 can better lock the mounting seat 13.

[0049] In addition, the housing 11 is further provided with a first notch 115, which extends along the length direction of the housing 11. The mounting seat 13 includes a toggle portion 133, which is connected to the second abutting portion 131, and the toggle portion 133 is disposed through and exposed to the first notch 115. The toggle portion 133 can move along the extending direction of the first notch 115 and cause the mounting seat 13 and the puncture needle 12 to move in a direction from the first end 111 to the second end 112, and the locking member 18 returns to the slot 132 to lock the mounting seat 13 again.

[0050] By operating the toggle portion 133 to move along the length direction of the first slot 115, the mounting seat 13 and the puncture needle 12 can be moved in the direction from the first end 111 to the second end 112, that is, the retracted puncture needle 12 can be moved forward again. When the mounting seat 13 moves to the point where the slot 132 corresponds to the locking member 18, the locking member 18 will be re-locked in the slot 132 under the action of the compression spring to lock the mounting seat 13, so that it can be reused.

[0051] In summary, the working principle of the drainage tube delivery device 10 of the present application is as follows: When the drainage tube delivery device 10 of the embodiment of the present application is used, the puncture needle 12 is first inserted into the target position in the eye, and the sliding member 16 is operated to move in the direction from the first end 111 to the second end 112, and the sliding member 16 drives the unlocking member 171 and the pushing member 172 to also move in the direction from the first end 111 to the second end 112, and the pushing member 172 simultaneously drives the push rod 14 to move in the length direction of the puncture needle 12, so that the drainage tube 20 placed in the inner cavity of the puncture needle 12 is pushed out of the puncture needle 12 at least partially (partially or completely); the first abutment portion 172 of the pushing member 172 23 acts on the second abutment portion 131 of the mounting seat 13, the first inclined guiding surface 17232 of the first abutment portion 1723 and the second inclined guiding surface 1312 of the second abutment portion 131 abut against each other until the first abutment portion 1723 and the second abutment portion 131 are staggered; the fourth abutment portion 1711 of the unlocking member 171 acts on the third abutment portion 181 of the locking member 18, the fourth abutment surface 17111 abuts against the third abutment surface 1811, so that the locking member 18 moves from the slot 132 of the mounting seat 13 to the groove 113 of the shell 11, and the locking member 18 is separated from the mounting seat 13.

[0052] Then, the sliding member 16 is operated to move in the direction from the second end 112 to the first end 111, and the pushing member 1721 drives the mounting seat 13 and the puncture needle 12 on the mounting seat 13 to move in the direction from the second end 112 to the first end 111, and the puncture needle 12 retreats. When the pushing member 1721 moves to the point where the slider 1722 abuts against the inner wall of the limiting channel 17211, the pushing member 1721 drives the mounting seat 13, the puncture needle 12 on the mounting seat 13, and the push rod 14 to continue to move in the direction from the second end 112 to the first end 111, so as to achieve the withdrawal of the puncture needle 12 and the push rod 14, and the puncture needle 12 withdraws from the eye without taking out the drainage tube 20, thereby implanting the drainage tube 20 well into the eye. Since the entire implantation process of the drainage tube 20 only requires the sliding member 16 to move in the length direction of the housing 11, the operation is simple during the operation, and it is convenient for medical personnel to operate.

[0053] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A drainage tube delivery device, characterized in that: include: a housing having opposing first and second ends; A puncture needle is arranged at the second end; the puncture needle has an inner cavity, and the inner cavity is used for placing a drainage tube; A mounting seat, the mounting seat is arranged in the housing, and the puncture needle is mounted on the mounting seat; A push rod, the push rod being able to move along the length direction of the inner cavity; as well as A driving mechanism, the driving mechanism includes a connected sliding member and a driving assembly, the sliding member can move along the length direction of the shell, and when the sliding member moves in the direction from the first end to the second end, the driving assembly can have a first state, and when the sliding member moves in the direction from the second end to the first end, the driving assembly can have a second state; in the first state, the driving assembly drives the push rod to move in the direction from the first end to the second end; in the second state, the driving assembly drives the mounting seat and the puncture needle to move in the direction from the second end to the first end.

2. The drainage tube delivery device according to claim 1, characterized in that: The driving assembly has a first abutment portion, and the mounting seat has a second abutment portion. The first abutment portion and the second abutment portion can be engaged and enable the driving assembly to drive the mounting seat and the puncture needle to move in a direction from the second end to the first end.

3. The drainage tube delivery device according to claim 2, characterized in that: The first abutment portion has a first inclined guide surface and a first abutment surface, and the second abutment portion has a second inclined guide surface and a second abutment surface. When the sliding member moves in a direction from the first end to the second end, the first inclined guide surface and the second inclined guide surface can abut against each other, and the first abutment portion can move relative to the second abutment portion; when the sliding member moves in a direction from the second end to the first end, the first abutment surface and the second abutment surface can abut against each other, so that the first abutment portion and the second abutment portion are buckled.

4. The drainage tube delivery device according to claim 3, characterized in that: The first abutting surface and the second abutting surface are both parallel to the radial direction of the shell; And / or, the inclination angles of the first inclined guiding surface and the second inclined guiding surface are equal.

5. The drainage tube delivery device according to any one of claims 1 to 4, characterized in that: The drainage tube delivery device also includes a locking member, which can lock the mounting seat; the driving assembly includes an unlocking member, which is connected to the sliding member. When the sliding member moves in a direction from the first end to the second end, the unlocking member can move in a direction from the first end to the second end and separate the locking member from the mounting seat to unlock.

6. The drainage tube delivery device according to claim 5, characterized in that: The mounting base is provided with a slot, and one end of the locking member can be locked in the slot to lock the mounting base, and the inner wall of the shell has a groove arranged in alignment with the slot, and the other end of the locking member is embedded in the groove; when the sliding member moves in the direction from the first end to the second end, the unlocking member can act on the locking member, and the locking member can move from the slot to the groove, and the locking member can be separated from the mounting base.

7. The drainage tube delivery device according to claim 6, characterized in that: The locking member has a third abutment portion, which has a third abutment surface; one end of the unlocking member has a fourth abutment portion, which has a fourth abutment surface. When the sliding member moves in the direction from the first end to the second end, the fourth abutment surface can abut against the third abutment surface and make the locking member move from the slot to the groove.

8. The drainage tube delivery device according to claim 7, characterized in that: The third abutting surface is an arc surface convex toward the slot, and the fourth abutting surface is an inclined plane; And / or, a compression spring is fixedly installed in the groove, and the compression spring is connected to one end of the locking member.

9. The drainage tube delivery device according to claim 5, characterized in that: The shell is provided with a first slot, which extends along the length direction of the shell; the mounting seat includes a toggle portion, which is penetrated and exposed to the first slot, and the toggle portion can move along the extension direction of the first slot and make the mounting seat and the puncture needle move in the direction from the first end to the second end.

10. The drainage tube delivery device according to claim 5, characterized in that: The driving assembly includes a pushing component and a connecting member. The pushing component is configured to be able to move along the length direction of the shell so as to push the push rod to move along the length direction of the inner cavity. The pushing component and the unlocking member are connected through the connecting member.

11. The drainage tube delivery device according to claim 10, characterized in that: The connecting member is rotatably connected to the shell through a first rotating shaft so that the connecting member can swing. The connecting member is provided with a long hole along its length direction. The pushing member and the unlocking member are respectively connected to the connecting member through a second rotating shaft and a third rotating shaft. The second rotating shaft and the third rotating shaft can move along the extension direction of the long hole.

12. The drainage tube delivery device according to claim 11, characterized in that: The pushing component includes a pushing member and a slider, the pushing member is provided with a limiting channel, the length of the limiting channel is greater than the length of the slider, the slider is arranged in the limiting channel and can move in the limiting channel along the length direction of the shell, the pushing member is connected to the connecting member through the second rotating shaft, the push rod is installed on the slider, and the pushing member is configured to be able to push the slider to move along the length direction of the shell.

13. The drainage tube delivery device according to claim 12, characterized in that: The inner wall of the shell is provided with at least one set of sliding grooves, and the pushing member and the sliding block are both slidably connected to the sliding grooves.

14. The drainage tube delivery device according to any one of claims 1 to 4, characterized in that: The shell is provided with a second slot along the length direction, the sliding member is provided outside the shell and can slide along the second slot, the second slot is provided with a supporting block to limit the sliding of the sliding member, and the supporting block is detachably mounted on the second slot.

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