A conveyor

Abstract

The present application relates to a kind of conveyor, for implanting medical equipment into human body, the conveyor includes guide rod assembly, the guide rod assembly is hollow structure, the guide rod assembly includes guide rod body, slider and sealing element, the slider is arranged in the guide rod body, and the slider can slide relative to the guide rod body, the guide rod body is equipped with sliding slot, the sealing element is arranged on the position of the guide rod body corresponding the sliding slot, part of the slider is located above the sealing element, and exposed outside the guide rod body.The conveyor provided by the present application, the sealing element can block the sliding slot, to avoid gloves or bed sheet being clamped in the sliding slot.Further avoid glove clamping break, conveyor damage, further avoid damaging aseptic operating room environment and threatening the life and health of operator and patient.

Description

Technical Field

[0001] This invention relates to the field of interventional medicine, and more specifically to a delivery device. Background Technology

[0002] With advancements in technology, minimally invasive surgery is becoming increasingly common for treating various diseases. Minimally invasive surgery typically involves implanting medical devices (such as stents) into the body via a delivery system through organs or blood vessels. However, during interventional procedures, surgeons sometimes encounter awkward situations while manipulating and releasing these devices on the operating table. Taking the reconstruction of the left subclavian artery (LSA) as an example, due to aortic dissection or aneurysm, the descending aorta is typically transported via a delivery system through peripheral vessels such as the femoral, iliac, abdominal aorta, thoracic aorta, brachial, and axillary arteries to the aortic arch. The complex and tortuous anatomy of human blood vessels creates significant resistance during release. Grasping the sliding handle during release can cause the protective glove to become stuck in the delivery system, caught in the gap between the guide rod and the handle, hindering the surgeon's operation. In severe cases, this can lead to glove breakage, compromising the sterile operating room environment and threatening the lives and health of both the surgeon and the patient.

[0003] Meanwhile, to meet the needs of more patients and minimize trauma, the need for sheath-removing delivery systems has become an inevitable trend in the industry. While bringing convenience, this also presents some risks. The increased resistance during instrument release within the narrower delivery system means that doctors need to exert greater force when gripping the handles, and the possibility of gloves getting caught in the delivery system due to excessive pressure also increases. Additionally, there is a possibility that bed sheets could get caught in the gaps between the guide rods and handles. Therefore, it is necessary to design a delivery system that prevents gloves or bed sheets from getting caught in these gaps. Summary of the Invention

[0004] To overcome the problems existing in the prior art, the present invention provides a conveyor.

[0005] The present invention provides a delivery device for implanting medical devices into the human body. The delivery device includes a guide rod assembly, which is a hollow structure. The guide rod assembly includes a guide rod body, a slider, and a seal. The slider is disposed inside the guide rod body and is slidable relative to the guide rod body. A groove is formed on the guide rod body. The seal is disposed on the guide rod body at a position corresponding to the groove. Part of the slider is located above the seal and exposed outside the guide rod body.

[0006] In some embodiments of the present invention, the sealing element is fixedly disposed on the guide rod body at a position corresponding to the slide groove, and the sealing element is stationary relative to the guide rod body in the axial direction.

[0007] In some embodiments of the present invention, the two ends of the sealing member are fixed on the inner surface of the guide rod body at positions corresponding to the two ends of the slide groove, and the sealing member is provided with a slit along the length direction of the sealing member, and part of the slider passes through the sealing member through the slit.

[0008] In some embodiments of the present invention, the sealing member is provided with a first fixing member at both ends, and the guide rod body is provided with a second fixing member at the position corresponding to the two ends of the slide groove on the inner surface of the guide rod body, and the first fixing member at both ends of the sealing member respectively cooperates with the second fixing member at both ends of the slide groove.

[0009] In some embodiments of the present invention, the slider is provided with a snap-fit ​​part, which passes through the slit and the groove in sequence and is exposed outside the guide rod body. The snap-fit ​​part slides along the groove and the slit, causing the slider to slide.

[0010] In some embodiments of the present invention, a portion of the seal is connected to the slider, and a portion of the seal is fixedly connected to the guide rod body. The portion of the seal connected to the slider moves relative to the guide rod body together with the slider.

[0011] In some embodiments of the present invention, the distal end of the seal is connected to the slider, and the proximal end of the seal is fixed to the inner surface of the proximal end of the guide rod body.

[0012] In some embodiments of the present invention, the slider is provided with a snap-fit ​​portion, the distal end of the seal is provided with a collar structure, the proximal end of the seal is provided with a first fixing member, the inner surface of the guide rod body is provided with a second fixing member at a position corresponding to the proximal end of the slide groove, the collar structure is sleeved on the snap-fit ​​portion, and the first fixing member cooperates with the second fixing member.

[0013] In some embodiments of the present invention, the conveyor further includes a handle assembly, which includes a fixed handle and a movable handle. The fixed handle is connected to the distal end of the guide rod body, and the movable handle is sleeved on the guide rod body and located on the proximal side of the fixed handle. The movable handle is movable relative to the guide rod body.

[0014] In some embodiments of the present invention, a snap-fit ​​groove is provided on the inner wall of the movable handle, and a portion of the slider passes through the seal and the groove in sequence, protruding outside the guide rod body and engaging with the snap-fit ​​groove. The movement of the movable handle drives a portion of the slider to move along the groove and the seal, thereby driving the slider to move.

[0015] In some embodiments of the present invention, the guide rod assembly further includes a connector, which is connected to the distal end of the guide rod body and is housed in the fixed handle. The fixed handle is provided with a first baffle and a reinforcing rib. One end of the connector abuts against the first baffle, and the reinforcing rib is disposed on the side of the first baffle away from the connector.

[0016] In some embodiments of the present invention, a second baffle is provided inside the fixed handle, the first baffle and the second baffle are spaced apart, and the distal end of the connector passes through the second baffle and finally abuts against the first baffle.

[0017] In some embodiments of the present invention, the connector is provided with a first locking structure, and the first locking structure is located between the first baffle and the second baffle. When the connector abuts against the first baffle, the first locking structure abuts against the second baffle.

[0018] In some embodiments of the present invention, a second locking structure is provided on the second baffle. When the first locking structure abuts against the second baffle, the second locking structure restricts the rotation of the connector.

[0019] In some embodiments of the present invention, a third baffle is provided inside the fixed handle, and the first baffle, the second baffle, and the third baffle are spaced apart. The distal end of the connector passes through the third baffle and the second baffle in sequence and finally abuts against the first baffle.

[0020] In some embodiments of the present invention, the third baffle is provided with a locking groove, and the connector is provided with a third locking structure corresponding to the position of the locking groove. When the connector abuts against the first baffle, the locking groove and the third locking structure cooperate.

[0021] In some embodiments of the present invention, the conveyor further includes a sheath that enters from the distal end of the fixed handle and passes sequentially through the first baffle and the connector into the guide rod body. The proximal end of the sheath is connected to the slider in the guide rod body, and the slider slides to drive the sheath to move.

[0022] In some embodiments of the present invention, a storage slot is provided at the proximal end of the movable handle, and the opening of the storage slot faces the proximal end of the conveyor.

[0023] Compared with the prior art, the conveyor of the present invention has the following advantages: The conveyor provided by the present invention has a sealing element that can block the slide groove, preventing gloves or sheets from being caught in the slide groove. This avoids glove breakage, conveyor damage, and consequently avoids disruption of the sterile operating room environment and threats to the life and health of the surgeon and patient. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the conveyor provided in the first embodiment of the present invention.

[0025] Figure 2 This is a cross-sectional structural diagram of the fixed handle and guide rod assembly of the conveyor provided in the first embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the fixed handle portion of the conveyor provided in the first embodiment of the present invention.

[0027] Figure 4 This is an exploded structural diagram of the guide rod assembly of the conveyor provided in the first embodiment of the present invention.

[0028] Figure 5 This is another cross-sectional structural schematic diagram of the conveyor provided in the first embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the sealing structure of the conveyor provided in the first embodiment of the present invention.

[0030] Figure 7 This is a schematic cross-sectional view of the movable handle and guide rod of the conveyor provided in the first embodiment of the present invention.

[0031] Figure 8 This is a schematic cross-sectional view of the main body of the movable handle and guide rod of the conveyor provided in other embodiments of the present invention.

[0032] Figure 9 This is a schematic diagram of the sealing structure of the conveyor provided in the second embodiment of the present invention.

[0033] Figure labeling: 100, Conveyor; 1, Handle assembly; 2, Guide rod assembly; 3, Sheath; 11, Fixed handle; 12, Movable handle; 21, Connector; 22, Guide rod body; 111, First baffle; 112, Reinforcing rib; 211, First locking structure; 113, Second baffle; 114, Third baffle; 115, Second locking structure; 116, Locking groove; 23, Slider; 231, Locking part; 212, Third locking structure; 221, Slide groove; 222, Second fixing element; 24, Sealing element; 121, Locking groove; 241, First fixing element; 242, Slit; 122, Storage groove; 123, Opening; 243, Collar structure. Detailed Implementation

[0034] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0035] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0036] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0037] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0038] To more clearly describe the structure of this application, the terms "proximal" and "distal" are used herein as conventional terms in the field of interventional medicine. Specifically, "distal" refers to the end furthest from the operator during the surgical procedure, "proximal" refers to the end closest to the operator during the surgical procedure, "axial" refers to its length direction, and "radial" refers to the direction perpendicular to the "axial".

[0039] Please see Figure 1 and Figure 2 The first embodiment of the present invention provides a delivery device 100 for implanting medical devices into the human body, such as delivering a stent to the aortic arch via peripheral blood vessels of various levels, such as the femoral, iliac, abdominal aorta, thoracic aorta, brachial, and axillary arteries. The delivery device 100 includes a handle assembly 1, a guide rod assembly 2, and a sheath 3. In a specific embodiment of the present invention, the handle assembly 1, the guide rod assembly 2, and the sheath 3 are generally cylindrical. A portion of the handle assembly 1 can slide on the guide rod assembly 2, thereby controlling the movement of the sheath 3. The distal end of the sheath 3 passes through the handle assembly 1 and is housed within the guide rod assembly 2. The handle assembly 1 includes a fixed handle 11 and a movable handle 12, and the guide rod assembly 2 includes a connector 21 and a guide rod body 22. One end of the connector 21 is fixedly connected to one end of the guide rod body 22. The connector 21 is housed in the fixed handle 11. The movable handle 12 is sleeved on the guide rod body 22. The movable handle 12 is located on the proximal side of the fixed handle 11 and can slide relative to the guide rod body 22.

[0040] The fixed handle 11, the movable handle 12, the connector 21, and the guide rod body 22 are all hollow structures. The distal end of the sheath 3 passes sequentially through the fixed handle 11 and the connector 21, and is finally housed inside the guide rod body 22. After the connector 21 is connected to the inside of the fixed handle 11, it is housed within the fixed handle 11. The movable handle 12 can abut against the fixed handle 11, and at this time, the movable handle 12 is in its initial position. When the movable handle 12 is gradually moved away from the fixed handle 11, the sheath 3 moves with the movable handle 12, meaning that more of the distal end of the sheath 3 is housed within the guide rod assembly 2.

[0041] Please see Figure 1 and Figure 2 The fixed handle 11 is provided with a first baffle 111 and a reinforcing rib 112. The end of the connector 21 away from the guide rod assembly 2 abuts against the first baffle 111, and the reinforcing rib 112 is located on the side of the first baffle 111 away from the connector 21. The sheath 3 enters from the end of the fixed handle 11 away from the guide rod assembly 2, and passes through the first baffle 111 and the connector 21 in sequence before entering the guide rod body 22.

[0042] The first baffle 111 serves to limit the position of the connector 21, thereby limiting the position of the guide rod assembly 2. The reinforcing rib 112 strengthens the first baffle 111, preventing damage to the first baffle 111 due to excessive pressure applied by the connector 21 caused by user misoperation. Furthermore, the reinforcing rib 112 is positioned on the side of the first baffle 111 away from the connector 21, preventing contact between the reinforcing rib 112 and the connector 21, which could lead to loosening or wobbling of the connector 21. This, in turn, prevents the guide rod assembly 2 from loosening or wobbling relative to the handle assembly 1, avoiding potential medical hazards caused by the wobbling of the guide rod assembly 2.

[0043] In a specific embodiment of the present invention, the number of reinforcing ribs 112 is three, which are spaced apart on the side of the first baffle 111 away from the connector 21. In other specific embodiments of the present invention, the number of reinforcing ribs can be adapted to the required strength of the structure. Specifically, the number of reinforcing ribs 112 can also be one, two, four, etc.

[0044] As a variation, the reinforcing rib 112 can also be disposed on the side of the first baffle 111 near the connector 21. At least two reinforcing ribs 112 are provided, each disposed on one side of the end of the connector 21 that contacts the first baffle 111. This allows the reinforcing rib 112 to not only reinforce the first baffle 111 but also to limit the movement of the connector 21, further preventing it from shaking.

[0045] Please see Figure 2 and Figure 3 The fixed handle 11 is further provided with a second baffle 113 and a third baffle 114. The first baffle 111, the second baffle 113, and the third baffle 114 are spaced apart. The connector 21 passes through the third baffle 114 and the second baffle 113 in sequence and finally abuts against the first baffle 111. The connector 21 is provided with a first locking structure 211, which is located between the first baffle 111 and the second baffle 113. When the connector 21 abuts against the first baffle 111, the first locking structure 211 abuts against the second baffle 113.

[0046] In a specific embodiment of the present invention, the first locking structure 211 is a spring-loaded structure. During the engagement of the connector 21 with the fixed handle 11, the connector 21 moves toward the first baffle 111. At this time, the first locking structure 211 is squeezed by the second baffle 113 or the third baffle 114, thereby allowing the connector 21 to move smoothly toward the first baffle 111. When the connector 21 abuts against the first baffle 111, the first locking structure 211 is not squeezed by the second baffle 113. The first locking structure 211 protrudes relative to the outer surface of the connector 21, thereby abutting against the second baffle 113. At this time, the movement of the connector 21 toward the first baffle 111 will be blocked by the first baffle 111, and the movement of the connector 21 toward the second baffle 113 will be blocked by the second baffle 113, thus restricting the axial movement of the connector 21 and realizing the engagement between the connector 21 and the fixed handle 11.

[0047] The second baffle 113 is provided with a second locking structure 115, the structure of which is similar to that of the reinforcing rib 112. When the first locking structure 211 abuts against the second baffle 113, the second locking structure 115 abuts against both sides of the end of the first locking structure 211 that abuts against the second baffle 113. The second locking structure 115 is a split structure, that is, part of its structure is located on one side of the first locking structure 211, and the rest of its structure is located on the other side of the first locking structure 211.

[0048] The first locking structure 211 and the second baffle 113 abut against and restrict the axial movement of the connector 21, while the second locking structure 115 abuts against the two sides of the first locking structure 211 near the second baffle 113, thereby restricting the circumferential rotation of the connector 21 and thus avoiding medical hazards caused by the rotation of the guide rod assembly 2 during use.

[0049] In other specific embodiments of the present invention, the first locking structure 211 may also be an elastic structure such as a spring bead. The second locking structure 115 may also be integrally formed with the third baffle 114.

[0050] Please see Figure 3 and Figure 4 To further restrict the circumferential rotation of the connector 21, a locking groove 116 is provided on the third baffle 114, and a third locking structure 212 is provided on the connector 21 corresponding to the position of the locking groove 116. When the connector 21 abuts against the first baffle 111, the locking groove 116 and the third locking structure 212 cooperate.

[0051] It can be understood that the third locking structure 212 is a protruding structure that protrudes relative to the outer surface of the connector 21. The locking groove 116 engages with the third locking structure 212, thereby restricting the circumferential rotation of the connector 21.

[0052] As some modified embodiments, the slot 116 can be replaced with a magnetic structure, and the third slot structure 212 is correspondingly set as a magnetic structure. Through the magnetic attraction between the slot 116 and the third slot structure 212, the axial and circumferential movement of the connector 21 can be restricted at the same time.

[0053] Please combine Figure 1 , Figures 4-6The guide rod assembly 2 includes a slider 23, which is disposed within the guide rod body 22 and is slidable relative to the guide rod body 22. The proximal end of the sheath 3 is connected to the slider 23, and movement of the slider 23 will cause movement of the sheath 3. The guide rod body 22 has a sliding groove 221, the slider 23 has a locking part 231, and the inner surface of the movable handle 12 has a locking groove 121. The locking part 231 passes through the sliding groove 221 and engages with the locking groove 121, allowing the slider 23 to engage with the movable handle 12.

[0054] The movable handle 12 slides on the guide rod assembly 2 through its cooperation with the slider 23. Simultaneously, the slider 23 moves the sheath 3 when the movable handle 12 is moved. In a specific embodiment of the invention, the locking part 231 is a protruding structure that correspondingly engages with the locking groove 121. In other specific embodiments of the invention, the locking part 231 can also be configured as a threaded structure, with a threaded connection between the locking part 231 and the locking groove 121. Alternatively, both the locking part 231 and the locking groove 121 can be configured as magnetic components, allowing the locking part 231 to magnetically engage with the locking groove 121.

[0055] In a specific embodiment of the present invention, the guide rod body 22 is a screw with threads on its outer surface, and the movable handle 12 can slide on the guide rod body 22 or rotate along the threads. When a long distance needs to be moved, the movable handle 12 can be slid directly; when a fine adjustment of the distance of the movable handle 12 is needed, the movable handle 12 can be rotated along the threads to finely adjust its position. The delivery device 100 needs to withstand a large release force when delivering medical devices, so the user also needs a large force when rotating the movable handle 12. Before using the delivery device 100, the initial state of the delivery device 100 is that the movable handle 12 is positioned close to the fixed handle 11. During use, a significant amount of force is required to rotate the movable handle 12. Even if the movable handle 12 is rotated in the wrong direction towards the fixed handle 11, the user may not be able to discern the incorrect rotation. Applying further force to rotate the movable handle 12 in the wrong direction will cause the connector 21 to continuously press against the first baffle 111, potentially damaging it. The reinforcing rib 112 strengthens the first baffle 111, preventing damage due to the aforementioned reasons. Furthermore, when the guide rod body 22 is a threaded rod on its outer surface, the second locking structure 115 and the third locking structure 212 further prevent damage to the first baffle 111. Without the second locking structure 115 and the third locking structure 212, the guide rod body 22 could spiral towards the first baffle 111 when the movable handle 12 is rotated, further compressing the first baffle 111. The second locking structure 115 and the third locking structure 212 are provided to restrict the rotation of the guide rod body 22, preventing the guide rod body 22 from moving towards the first baffle 111 and squeezing the first baffle 111. In other specific embodiments of the present invention, the guide rod body 22 may also be a rod with a smooth surface.

[0056] Furthermore, during transportation, the conveyor 100 may experience some slippage of the movable handle 12 due to road bumps, which could cause premature release of the support within the sheath 3. Therefore, a number of small protrusions (not shown) are provided on the guide rod body 22. These protrusions can limit the movement of the movable handle 12, preventing it from slipping due to road bumps. Simultaneously, the protrusions are only located on the correct path of the movable handle 12. In use, if the user moves the movable handle 12 in the wrong direction, they will not need to overcome the resistance from the protrusions; if the user moves the movable handle 12 in the correct direction, they will need to overcome the resistance from the protrusions. The protrusions can remind the user whether the movable handle 12 is moving in the correct direction. Furthermore, by spaced out multiple protrusions, the distance the movable handle 12 has traveled can be indicated to the user when it contacts one of the protrusions.

[0057] Since gloves are required when using the conveyor 100, there is a risk that the gloves may get caught in the groove 221 when sliding the movable handle 12. Furthermore, the conveyor 100 is mostly used on a hospital bed, and the bed sheet may also get caught in the groove 221, causing inconvenience. Therefore, in this specific embodiment, a sealing element 24 is provided inside the guide rod assembly 2. First fixing elements 241 are provided at both ends of the sealing element 24, and second fixing elements 222 are provided on the inner surface of the guide rod body 22 at positions corresponding to the ends of the groove 221. The first fixing elements 241 at both ends of the sealing element 24 cooperate with the second fixing elements 222 at both ends of the groove 221, thereby fixing the sealing element 24 on the inner surface of the guide rod body 22 at positions corresponding to the groove 221. Part of the slider 23 is located above the sealing element 24 and protrudes outside the guide rod body 22. Specifically, the sealing element 24 is provided with a slit 242 along the length direction of the sealing element 24, the snap-fit ​​part 231 passes through the slit 242 in sequence, the sliding groove 221 is exposed outside the guide rod body 22, and the snap-fit ​​part 231 can slide along the slit 242.

[0058] It is understood that in this specific embodiment of the invention, the sealing element 24 is a stretchable spring sheet, such as medical silicone. The first fixing element 241 is a spring bead, and the second fixing element 222 is a groove structure. The spring bead is engaged in the groove to achieve the effect of fixing the sealing element 24. When the engaging part 231 moves on the slit 242, there is a certain gap between the slit 242 and the engaging part 231 only at the position where they contact each other, so that the engaging part 231 can pass through. There is no gap at other positions because the sealing element 24 is in a taut and stretchable state. This allows the sealing element 24 to seal the groove 221, preventing gloves or sheets from being caught in the groove 221.

[0059] In other specific embodiments of the present invention, the sealing member 24 may also be disposed on the outer surface of the guide rod body 22 at a position corresponding to the slide groove 221. The snap-fit ​​portion 231 passes through the slide groove 221 in sequence, and the slit 242 is exposed outside the guide rod body 22. The first fixing member 241 may be disposed in the middle or end of the sealing member, and can be adapted according to the actual situation. The second fixing member 222 is adapted to the position corresponding to the first fixing member 241. The cooperation between the sealing member 24 and the inner surface of the guide rod body 22 can also be achieved by means of adhesive application, threaded connection, etc. The first fixing member 241 can be a groove structure, and the second fixing member 222 can be a protruding structure such as a spring bead. The sealing member 24 is fixed on the guide rod body 22 by the cooperation of the groove structure and the protruding structure.

[0060] Please see Figure 7 Since the movable handle 12 needs to slide on the guide rod body 22, there is inevitably a gap between the movable handle 12 and the guide rod body 22, and gloves or sheets may get caught in this gap. Because the gap is too small, it is difficult to remove gloves or sheets once they are caught. Therefore, a storage groove 122 is provided on the side of the movable handle 12 away from the fixed handle 11, and the storage groove 122 has an opening 123 on the proximal side. When the movable handle 12 slides, even if gloves or sheets get caught in the movable handle 12, they will first pass through the opening 123 and be stored in the storage groove 122. At this time, a slight tug on the gloves or sheets will remove them from the storage groove 122, further avoiding the inconvenience caused by gloves or sheets getting caught in the gap.

[0061] In a specific embodiment of the present invention, an opening 123 is provided on the side of the storage groove 122 near the guide rod body 22, that is, a baffle is formed on the side of the storage groove 122 away from the guide rod body 22 (the side without the opening 123). The baffle can support the user's hand and reduce the probability of the glove being caught in the movable handle 12. In other specific embodiments of the present invention, the opening 123 is provided throughout the proximal end of the storage groove 122, such as... Figure 8 As shown.

[0062] Please see Figure 9 The second embodiment of the present invention provides a conveyor 100. The conveyor 100 of the second embodiment differs from the conveyor 100 of the first embodiment in that: the distal end of the sealing member 24 is connected to the snap-fit ​​portion 231, and the proximal end of the sealing member 24 is fixed to the proximal inner surface of the guide rod body 22. Specifically, one end of the sealing member 24 is a collar structure 243, and the other end is provided with a first fixing member 241 that cooperates with the second fixing member 222. The sealing member 24 is in a stretched state. When the slider 23 is located at the position closest to the fixed handle 11, the collar structure 243 of the sealing member 24 is sleeved on the snap-fit ​​portion 231, and the first fixing member 241 at the other end is connected to the second fixing member 222. Since the sealing member 24 is in a stretched state, the sealing member 24 will provide a certain force to drive the snap-fit ​​portion 231 to slide towards the proximal end, thereby driving the movable handle 12 to slide. When the slider 23 slides, the seal 24 provides a certain force to drive and follow the movement of the slider 23. The proximal end of the seal 24 is fixed to the inner surface of the proximal end of the guide rod body 22, so that the seal 24 always blocks the part of the groove 221 that the handle assembly 1 has not passed through. This makes it easier for the user to slide the movable handle 12, and also prevents gloves or sheets from getting caught in the gap, improving the user experience. However, it should be noted that when the user is not sliding the movable handle 12, the seal 24, which is in a stretched state, cannot drive the movable handle 12 to slide by its own force, and the movable handle 12 remains stationary.

[0063] Furthermore, the seal 24 can be provided with a sufficient length and connected to the slider 23, with the seal 24 moving along with the slider 23. When the user slides the movable handle 12, the slider 23 moves, thereby driving the seal 24 to move. Because the seal 24 is long enough, it can seal the groove 221 from any position, thus preventing gloves or sheets from getting caught in the gap.

[0064] As some modified embodiments, the collar structure 243 can be replaced with a snap-fit ​​structure or a magnetic structure, achieving the engagement between the distal end of the seal 24 and the slider 23 through a snap-fit ​​or magnetic connection. Alternatively, the distal end of the seal 24 can be fixedly connected to the slider 23 by adhesive application or welding.

[0065] Compared with the prior art, the conveyor of the present invention has the following advantages:

[0066] 1. The conveyor provided by this invention has a sealing element that can block the slide groove, preventing gloves or sheets from being caught in the slide groove. This prevents gloves from being torn, the conveyor from being damaged, and consequently avoids disruption of the sterile operating room environment and threats to the life and health of the surgeon and patient.

[0067] 2. The conveyor provided by this invention has reinforcing ribs that strengthen the first baffle, preventing damage to the first baffle caused by excessive pressure applied to it by the connector due to user misoperation. Furthermore, the reinforcing ribs are positioned on the side of the first baffle away from the connector, preventing contact between the reinforcing ribs and the connector from becoming loose or wobbly. This further prevents the guide rod assembly from becoming loose or wobbly relative to the handle assembly, avoiding potential medical hazards caused by the wobbling of the guide rod assembly.

[0068] 3. The movement of the connector head towards the first baffle will be blocked by the first baffle, and the movement of the connector head towards the second baffle will be blocked by the second baffle, thereby restricting the axial movement of the connector head to fix the connector head and also realizing the cooperation between the connector head and the fixed handle.

[0069] 4. The second locking structure abuts against the two sides of the first locking structure near the second baffle, which can restrict the circumferential rotation of the connector, thereby avoiding medical hazards caused by the rotation of the guide rod assembly during use.

[0070] 5. The third baffle is provided with a locking groove, and the connector is provided with a third locking structure corresponding to the locking groove. When the connector abuts against the first baffle, the locking groove and the third locking structure cooperate to further restrict the circumferential rotation of the connector.

[0071] 6. A storage slot is provided on the side of the movable handle away from the fixed handle, and an opening is provided on the side of the storage slot away from the fixed handle. Even if the gloves or the bed sheet get caught in the movable handle, they will first pass through the opening and be stored in the storage slot. At this time, a slight tug on the gloves or bed sheet will remove them from the storage slot, further avoiding the inconvenience caused by the gloves or bed sheet getting caught in the gap.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A delivery device for implanting a medical device into the human body, characterized in that: The conveyor includes a guide rod assembly and a handle assembly. The guide rod assembly is a hollow structure and includes a guide rod body, a slider, and a seal. The slider is disposed within the guide rod body and is slidable relative to the guide rod body. A groove is formed on the guide rod body, and the seal is disposed on the guide rod body at a position corresponding to the groove. The handle assembly includes a fixed handle and a movable handle. The fixed handle is connected to the distal end of the guide rod body, and the movable handle is sleeved on the guide rod body and located near the proximal end of the fixed handle. The movable handle is slidable relative to the guide rod body. The guide rod body moves; the slider is provided with a snap-fit ​​part, the seal is provided with a slit along the length of the seal, the snap-fit ​​part passes through the slit and the groove in sequence and is exposed outside the guide rod body and connected to the movable handle, the movement of the movable handle drives the slider to move along the groove and the slit; the movable handle is provided with a storage groove on the side away from the fixed handle, the storage groove has an opening on the side facing the proximal end, and the opening is located on the side of the storage groove near the guide rod body, the side of the storage groove away from the guide rod body forms a baffle.

2. The conveyor as claimed in claim 1, characterized in that: The sealing element is fixedly installed on the guide rod body at the position corresponding to the slide groove, and the sealing element is stationary relative to the guide rod body in the axial direction.

3. The conveyor as described in claim 2, characterized in that: The two ends of the sealing element are fixed on the inner surface of the guide rod body at positions corresponding to the two ends of the slide groove.

4. The conveyor as described in claim 3, characterized in that: The sealing element is provided with a first fixing member at both ends, and the guide rod body is provided with a second fixing member at the position corresponding to the two ends of the slide groove on the inner surface of the body. The first fixing members at both ends of the sealing element cooperate with the second fixing members at both ends of the slide groove.

5. The conveyor as described in claim 4, characterized in that: The first fixing component is a spring ball.

6. The conveyor as claimed in claim 1, characterized in that: The seal is a stretchable spring.

7. The conveyor as claimed in claim 1, characterized in that: The distal end of the seal is connected to the slider, and the proximal end of the seal is fixed to the inner surface of the proximal end of the guide rod body; the distal end of the seal moves together with the slider relative to the guide rod body.

8. The conveyor as claimed in claim 7, characterized in that: The sealing element has a collar structure at its distal end and a first fixing member at its proximal end. A second fixing member is provided on the inner surface of the guide rod body at the position corresponding to the proximal end of the slide groove. The collar structure is sleeved on the snap-fit ​​part, and the first fixing member cooperates with the second fixing member.

9. The conveyor as claimed in claim 1, characterized in that: The inner wall of the movable handle is provided with a snap-fit ​​groove, and the snap-fit ​​part passes through the seal in sequence. The slide groove is exposed outside the guide rod body and cooperates with the snap-fit ​​groove.

10. The conveyor as claimed in claim 1, characterized in that: The guide rod assembly also includes a connector, which is connected to the distal end of the guide rod body and is housed in the fixed handle. The fixed handle is provided with a first baffle and a reinforcing rib. One end of the connector abuts against the first baffle, and the reinforcing rib is located on the side of the first baffle away from the connector.

11. The conveyor as claimed in claim 10, characterized in that: The fixed handle is provided with a second baffle, and the first baffle and the second baffle are spaced apart. The distal end of the connector passes through the second baffle and finally abuts against the first baffle.

12. The conveyor as claimed in claim 11, characterized in that: The connector is provided with a first locking structure, and the first locking structure is located between the first baffle and the second baffle. When the connector abuts against the first baffle, the first locking structure abuts against the second baffle.

13. The conveyor as claimed in claim 12, characterized in that: The second baffle is provided with a second locking structure. When the first locking structure abuts against the second baffle, the second locking structure restricts the rotation of the connector.

14. The conveyor as claimed in claim 11, characterized in that: The fixed handle is provided with a third baffle. The first baffle, the second baffle, and the third baffle are spaced apart. The distal end of the connector passes through the third baffle and the second baffle in sequence and finally abuts against the first baffle.

15. The conveyor as claimed in claim 14, characterized in that: The third baffle is provided with a locking groove, and the connector is provided with a third locking structure corresponding to the position of the locking groove. When the connector abuts against the first baffle, the locking groove and the third locking structure cooperate.

16. The conveyor as claimed in claim 10, characterized in that: The conveyor further includes a sheath that enters from the distal end of the fixed handle and passes sequentially through the first baffle and the connector into the guide rod body. The proximal end of the sheath is connected to the slider inside the guide rod body, and the slider slides to drive the sheath to move.

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