Patch conveying device with reminding function

Abstract

The utility model discloses a patch conveying device with a reminding function. The patch conveying device comprises a handle, a patch conveying pipe, a limiting prompting piece and an elastic piece. One end of the patch conveying pipe is slidably arranged in the handle in the axial direction, and the other end of the patch conveying pipe extends out of the handle to be connected with a patch. The limiting prompting piece is connected with one end of the patch conveying pipe and located at the end of the handle, an opening is formed in the end of the handle, and the limiting prompting piece can stretch out of the handle from the opening under pressure; the elastic piece is sleeved on the limiting prompting piece, and one end of the elastic piece abuts against the handle. According to the patch conveying device with the reminding function, an operator can be reminded of the extending degree of the patch by arranging the limiting reminding piece, and the patch is prevented from being excessively bent. The elastic piece is arranged, so that the limiting prompting piece can be popped out of the handle only after the patch is excessively bent, and the situation that the limiting elastic piece is popped out by mistake is avoided. In addition, a limiting wall and an auxiliary part are further arranged in the handle so as to play a role in limiting the limiting prompting piece and the patch conveying pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a patch conveying device with a reminder function. Background Art

[0002] Acellular biological patch is a biological material used to repair or replace damaged tissue. It is usually made of materials with good biocompatibility and is specially treated to remove immunogenicity, thereby reducing the risk of rejection. Acellular biological patches can be used in a variety of situations, such as hernia repair, urethral repair, pelvic floor function reconstruction, etc. In minimally invasive acellular matrix patch surgery, the patch is usually delivered to the lesion site of the human body through a catheter. The patch is exposed to the lesion site for expansion and unfolding, and then the patch is anastomosed with a stapler to complete the patch surgery. The patch is relatively soft after unfolding, and it is difficult for existing patch delivery devices to control the extent of patch delivery. There is a risk of curling when the patch is over-delivered.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0004] The purpose of the utility model is to provide a patch delivery device with a reminder function, which is provided with a limit reminder piece that can pop out from the handle to prevent the patch from being excessively bent.

[0005] To achieve the above-mentioned objectives, a specific embodiment of the present invention provides a patch delivery device with a reminder function, comprising: a handle, a patch delivery tube, a position-limiting reminder, and an elastic member. One end of the patch delivery tube is axially slidably disposed within the handle, and the other end thereof extends out of the handle for connection to a patch; the position-limiting reminder is connected to the one end of the patch delivery tube and is located at the end of the handle, the end of the handle having an opening, and the position-limiting reminder can extend from the opening out of the handle under pressure; the elastic member is sleeved over the position-limiting reminder, and one end of the elastic member abuts against the handle.

[0006] In one or more embodiments of the present invention, the position-limiting reminder member includes a reminder portion and a connecting post. The reminder portion is disposed within the handle and can extend out of the handle; the connecting post is disposed axially along the patch delivery tube, one end of the connecting post being connected to the reminder portion and the other end being connected to the patch delivery tube; and the elastic member is sleeved on the connecting post to provide an elastic force that retains the position-limiting reminder member within the handle.

[0007] In one or more embodiments of the present invention, a protrusion is circumferentially provided at one end of the connecting post close to the patch delivery tube, and abuts against one end of the elastic member.

[0008] In one or more embodiments of the present invention, a limiting wall is provided in the handle at one end of the limiting prompt member, and is abutted against the other end of the elastic member.

[0009] In one or more embodiments of the present invention, the limiting wall and the inner wall of the handle form an accommodating cavity, and the reminder portion is located in the accommodating cavity.

[0010] In one or more embodiments of the present invention, an opening is provided on the limiting wall, the connecting column is passed through the opening and can move axially within the opening, and the protrusion and the reminder portion are located on both sides of the limiting wall.

[0011] In one or more embodiments of the present invention, the diameters of the protruding portion and the reminding portion are both larger than the diameter of the opening.

[0012] In one or more embodiments of the present invention, an auxiliary portion is provided in the handle at the other end of the position limiting prompting member, and the protruding portion is operatively connected to the auxiliary portion.

[0013] In one or more embodiments of the present invention, the auxiliary portion is provided with a through hole along the axial direction, and the patch delivery tube is inserted into the through hole.

[0014] Compared to existing technologies, the patch delivery device with a reminder function in this utility model uses a position-limiting indicator to remind the operator of the proper insertion of the patch, preventing excessive bending of the patch. The elastic member ensures that the position-limiting indicator will only pop out of the handle when the patch is excessively bent, preventing the elastic member from accidentally popping out. Furthermore, a limit wall and auxiliary portion are provided within the handle to limit the position of the position-limiting indicator and the patch delivery tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some of the embodiments described in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0016] Figure 1 This is a three-dimensional diagram of a patch delivery device with a reminder function in one embodiment of the present invention;

[0017] Figure 2This is a diagram showing the internal structure of a patch delivery device with a reminder function in one embodiment of the present invention;

[0018] Figure 3 This is an exploded view of a patch delivery device with a reminder function in one embodiment of the present invention.

[0019] Description of main reference numerals:

[0020] 1-handle, 11-limiting wall, 111-opening, 12-auxiliary part, 121-through hole, 13-accommodating cavity, 14-opening, 2-patch delivery tube, 3-limiting reminder member, 31-reminding part, 32-connecting column, 33-protruding part, 4-elastic part, 5-outer tube, 6-trigger, 7-linkage member. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0022] like Figure 1-3 As shown, a patch delivery device with a reminder function in one embodiment of the present invention includes: a handle 1, a patch delivery tube 2, a position limiting prompt member 3 and an elastic member 4. The handle 1 has an accommodating space inside. One end of the patch delivery tube 2 is slidably arranged in the handle 1 along its axial direction, and the other end thereof extends out of the handle 1 for connecting the patch. The position limiting prompt member 3 is connected to the one end of the patch delivery tube 2 and is located at the end of the handle 1. The end of the handle 1 has an opening 14, and the position limiting prompt member 3 is located in the handle 1 and can extend out of the handle from the opening 14 under pressure. The elastic member 4 is sleeved on the position limiting prompt member 3, and one end of the elastic member 4 is against the handle 1 to provide an elastic force that keeps the position limiting prompt member 3 in the handle 1.

[0023] The working principle of the patch delivery device with a reminder function is as follows: the patch is placed at one end of the patch delivery tube 2, and the patch delivery tube 2 gradually extends the patch into the lesion site. When the patch reaches the lesion site, it expands and unfolds at the corresponding position. During this process, if the patch is extended too much, the patch will bend, and the patch delivery tube 2 will tend to retreat accordingly. The elastic member 4 can prevent the position-limiting reminder member 3 connected to the patch delivery tube 2 from moving. When the elastic force of the elastic member 4 is not enough to offset the retreat trend of the patch delivery tube 2, the position-limiting reminder member 3 moves and extends from the handle 1. When the position-limiting reminder member 3 extends from the handle 1, the operator will know that the patch has been excessively extended and can make corresponding adjustments so that the patch is in the appropriate position.

[0024] In one embodiment, if Figure 2 and Figure 3 As shown, the position-limiting indicator 3 comprises a warning portion 31 and a connecting post 32. The warning portion 31 is disposed within the handle 1 and can extend out of the handle 1. The connecting post 32 is disposed axially along the patch delivery tube 2, with one end of the connecting post 32 connected to the warning portion 31 and the other end connected to the patch delivery tube 2. An elastic member 4 is sleeved over the connecting post 32 to provide an elastic force that keeps the position-limiting indicator 3 in place within the handle 1.

[0025] The elastic force of the elastic member 4 can offset the movement of the patch delivery tube 2 within a desired range, without causing the patch to not curl due to insufficient elastic force of the elastic member 4, resulting in the position limit indicator 3 extending from the handle 1. The elastic member 4 can be selected from a compression spring, a rubber spring, or other elastic member 4 having elastic force.

[0026] The end of the connecting post 32 near the patch delivery tube 2 is circumferentially provided with a protrusion 33, which abuts one end of the elastic member 4. The handle 1 includes a retaining wall 11 at one end of the position-limiting indicator 3, which abuts the other end of the elastic member 4. This arrangement sandwiches the elastic member 4 between the retaining wall 11 and the protrusion 33. When the patch is not bent, the elastic member 4 does not deform. When the patch bends, the patch delivery tube 2 moves, causing the elastic member 4 to deform accordingly.

[0027] Furthermore, the limiting wall 11 is provided with an opening 111. The connecting post 32 is disposed within the opening 111 and is axially movable within the opening 111. The protrusion 33 and the reminder portion 31 are located on either side of the limiting wall 11. Specifically, the diameters of the protrusion 33 and the reminder portion 31 are both larger than the diameter of the opening 111. With this arrangement, the limiting reminder member 3 can be constrained by the limiting wall 11 and can move along the opening 111 without being able to disengage from the opening 111.

[0028] In one embodiment, if Figure 3As shown, the limiting wall 11 and the inner wall of the handle 1 form a receiving cavity 13, and the reminder portion 31 is located in the receiving cavity 13. Before the elastic member 4 undergoes elastic deformation, the reminder portion 31 is completely located in the receiving cavity 13. When the elastic force of the elastic member 4 is overcome, the reminder portion 31 will extend from the receiving cavity 13 to serve as a reminder.

[0029] In one embodiment, the handle 1 includes an auxiliary portion 12 at the other end of the position-limiting indicator 3, and a protrusion 33 is operatively connected to the auxiliary portion 12. The protrusion 33 can abut against the auxiliary portion 12 when the elastic member 4 is not elastically deformed, thereby cooperating with the position-limiting wall 11 to prevent unwanted movement of the position-limiting indicator 3 and the patch delivery tube 2.

[0030] Furthermore, the auxiliary portion 12 is provided with an axial through hole 121, into which the patch delivery tube 2 is inserted. The diameter of the through hole 121 is substantially equal to that of the patch delivery tube 2, thereby providing support for the patch delivery tube 2 and preventing it from shaking in the radial direction, thereby improving the accuracy of patch delivery.

[0031] In one embodiment, an outer tube 5 may be sleeved over the patch delivery tube 2. The outer tube 5 covers the end of the patch delivery tube 2. A trigger 6 is provided on the handle 1. The trigger 6 is connected to the outer tube 5 via a linkage 7 and is used to control the movement of the outer tube 5 relative to the inner tube.

[0032] The patch delivery device with a reminder function operates as follows: The outer tube 5 and the patch delivery tube 2 of the patch delivery device are inserted into the lesion. When the trigger 6 is pulled, the linkage 7 drives the outer tube 5 backward, exposing the patch delivery tube 2. The patch at the end of the patch delivery tube 2 expands and unfolds, and the position of the patch is then adjusted. During the adjustment process, if the patch is excessively bent, the inner delivery tube moves. Simultaneously, the elastic member 4 deforms, and the position-limiting reminder 3 pops out from the handle 1 to serve as a reminder.

[0033] In summary, the patch delivery device with a reminder function of the present invention, by providing a position-limiting reminder member 3, can remind the operator of the extent of patch insertion, thereby preventing the patch from excessively bending. The provision of the elastic member 4 ensures that the position-limiting reminder member 3 will only be ejected from the handle 1 after the patch has excessively bent, thus preventing the position-limiting elastic member 4 from accidentally ejecting. Furthermore, a position-limiting wall 11 and an auxiliary portion 12 are provided within the handle 1 to limit the position of the position-limiting reminder member 3 and the patch delivery tube 2.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0035] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A patch delivery device with a reminder function, characterized in that: include: handle; a patch delivery tube, one end of which is slidably disposed in the handle along its axial direction, and the other end of which extends out of the handle for connecting to the patch; a position limiting prompting member connected to the one end of the patch delivery tube and located at the end of the handle, wherein the end of the handle has an opening, and the position limiting prompting member can extend out of the handle from the opening under pressure; and The elastic member is sleeved on the position limiting prompt member, and one end of the elastic member is against the handle.

2. The patch delivery device with reminder function according to claim 1, characterized in that: The limit reminder comprises: a reminder portion, disposed in the handle and capable of extending out of the handle; and A connecting column is arranged along the axial direction of the patch delivery tube, one end of the connecting column is connected to the reminder part, and the other end is connected to the patch delivery tube; the elastic part is sleeved on the connecting column to provide elastic force to keep the limit reminder part in the handle.

3. The patch delivery device with reminder function according to claim 2, characterized in that: The connecting column is provided with a protrusion along the circumferential direction on one end close to the patch delivery tube, and abuts against one end of the elastic member.

4. The patch delivery device with reminder function according to claim 3, characterized in that: The handle is provided with a limiting wall at one end of the limiting prompting member, which abuts against the other end of the elastic member.

5. The patch delivery device with reminder function according to claim 4, characterized in that: The limiting wall and the inner wall of the handle form an accommodating cavity, and the reminding portion is located in the accommodating cavity.

6. The patch delivery device with reminder function according to claim 4, characterized in that: An opening is provided on the limiting wall, the connecting column is passed through the opening and can move axially in the opening, and the protruding portion and the reminding portion are located on both sides of the limiting wall.

7. The patch delivery device with reminder function according to claim 6, characterized in that: The diameters of the protruding portion and the reminding portion are both larger than the diameter of the opening.

8. The patch delivery device with reminder function according to claim 3, characterized in that: The handle is provided with an auxiliary portion at the other end of the position limiting prompting member, and the protruding portion is operatively connected to the auxiliary portion.

9. The patch delivery device with reminder function according to claim 8, characterized in that: The auxiliary portion is provided with a through hole along the axial direction, and the patch delivery tube is inserted into the through hole.

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