Medical glue delivery device and control handle thereof

Abstract

The present application relates to a medical glue delivery device and a control handle thereof. The control handle includes a handle housing, a glue injection assembly and a non-return control assembly. The glue injection assembly includes a glue injection button, a first spring, a first spring and a glue injection push rod. The glue injection button and the glue injection push rod can be axially movably arranged on the handle housing. A plurality of card slots are axially arranged on the glue injection push rod. One end of the first spring is connected to the glue injection button, and the other end is used to cooperate with the card slot. When the first spring is matched with the card slot, the glue injection push rod is restricted from moving toward the proximal end relative to the handle housing. The non-return control assembly is arranged between the glue injection push rod and the glue injection button, and is used to squeeze the first spring or release the squeezing of the first spring. The medical glue delivery device and the control handle of the present application realize controllable non-return of the glue injection push rod, improve the convenience of operation, and the non-return control assembly is arranged between the glue injection push rod and the glue injection button, reducing the risk of the non-return function of the non-return control assembly failing due to accidental touch.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a medical glue delivery device and a control handle thereof. Background Art

[0002] Varicose veins of the lower limbs are a common disease in vascular surgery. The disease occurs mostly because the great saphenous vein valve loses its function as a "one-way valve", causing blood to flow back and causing congestion in the great saphenous vein, presenting as an earthworm-like venous mass or bluish-purple linear blood vessels.

[0003] In the related art, a glue injection device is used to inject medical glue into the blood vessels that need to be sealed. Compared with previous technologies, this technology causes less harm to patients.

[0004] However, in actual use, due to individual differences among patients, the sizes of patients' veins vary greatly, ranging from a few millimeters to more than ten millimeters in diameter, and the amount of glue required also varies greatly. The glue injection device of the related art has the risk of misoperation and is inconvenient to operate. Summary of the invention

[0005] Based on this, a medical glue delivery device is provided to solve the problem of how to reduce the risk of misoperation during use and improve operational convenience.

[0006] In one aspect, the present application provides a medical glue delivery device, comprising:

[0007] A handle housing having a clamping portion, wherein the clamping portion is used to clamp a syringe;

[0008] A glue injection assembly, the glue injection assembly is used to apply a thrust to the push rod of the syringe; the glue injection assembly includes a glue injection button, a first spring, a first spring and a glue injection push rod, the glue injection button and the glue injection push rod are both axially movably arranged on the handle housing, a plurality of slots are axially arranged on the glue injection push rod, one end of the first spring is connected to the glue injection button, and the other end is used to cooperate with the slot, and when the first spring cooperates with the slot, the glue injection push rod is restricted from moving toward the proximal end relative to the handle housing, the first spring is in contact with the glue injection button, and the first spring is used to drive the glue injection button to reset relative to the handle housing toward the proximal end;

[0009] A check control assembly is arranged between the glue injection push rod and the glue injection button. The check control assembly is used to squeeze the first spring sheet or release the squeezing of the first spring sheet. When the check control assembly squeezes the first spring sheet, the end of the first spring sheet away from the glue injection button escapes from the slot on the glue injection push rod; when the check control assembly releases the squeezing of the first spring sheet, the end of the first spring sheet away from the glue injection button is stuck in the slot.

[0010] On the other hand, the present application provides a medical glue delivery device, including a syringe and a control handle as described above, the syringe including a syringe barrel and a push rod, one end of the push rod is in sealing contact with the inner wall of the syringe barrel through a piston, the syringe barrel is assembled on the clamping portion, and the syringe barrel has an extrusion port, the push rod is opposite to the glue injection push rod, when the glue injection push rod pushes the push rod to move toward the distal end relative to the syringe barrel, the medical glue contained in the syringe barrel is squeezed out from the extrusion port.

[0011] The above-mentioned medical glue delivery device and its control handle, through the two states of squeezing and releasing the squeezing of the first spring sheet by the check control component, can realize that when the squeezing of the first spring sheet is released, the glue injection push rod can be conveniently moved toward the proximal end relative to the handle housing; when the squeezing of the first spring sheet is released, the first spring sheet restricts the glue injection push rod from retreating toward the proximal end, and then plays a check function. Therefore, the control handle of the present application realizes controllable check of the glue injection push rod, which improves the convenience of operation. Since the first spring sheet corresponds to the space between the glue injection push rod and the glue injection button for transmitting the pressing force of the glue injection button to the glue injection push rod, and the check control component is arranged between the glue injection push rod and the glue injection button, it is not easy to accidentally touch the check control component when the glue injection push rod is driven by the glue injection button to squeeze the push rod of the syringe, thereby reducing the risk of failure of the check function of the check control component due to accidental touch, so as to ensure the check effect of the check control component on the glue injection push rod and maintain the reliability of the glue injection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of a medical glue delivery device according to one embodiment.

[0013] Figure 2 It is a schematic diagram of the explosion structure of a medical glue delivery device according to one embodiment.

[0014] Figure 3 This is a schematic diagram of the internal structure assembly of a medical glue delivery device when the first shell is removed according to one embodiment.

[0015] Figure 4 This is a schematic diagram of the internal structure assembly of a medical glue delivery device when the second shell is removed according to one embodiment.

[0016] Figure 5 It is a schematic structural diagram of a check control assembly in a control handle of a medical glue delivery device according to one embodiment.

[0017] Figure 6 It is a partial structural schematic diagram of a check control assembly in a control handle of a medical glue delivery device according to one embodiment.

[0018] Figure 7In a control handle of a medical glue delivery device according to one embodiment, Figure 6 The schematic diagram of the structure of the check control assembly with the check head removed is shown.

[0019] Figure 8 It is a schematic structural diagram of the check valve head of the check valve control assembly in the control handle of a medical glue delivery device according to one embodiment.

[0020] Fig. 9 It is a schematic structural diagram of a check control assembly in a control handle of a medical glue delivery device according to one embodiment.

[0021] Fig.10 This is a schematic diagram of the engagement between the check rail and the check button of the check control assembly in the control handle of a medical glue delivery device according to one embodiment.

[0022] Fig.11 It is a schematic structural diagram of the cooperation between the check rail and the check groove of the check control assembly in the control handle of the medical glue delivery device according to one embodiment.

[0023] Fig.12 It is a schematic structural diagram of the non-return slide rail and the non-return groove of the non-return control assembly in the control handle of the medical glue delivery device according to one embodiment.

[0024] Fig.13 It is a structural schematic diagram of a glue injection amount adjustment component in a control handle of a medical glue delivery device according to one embodiment.

[0025] Fig.14 for Fig.13 Enlarged view of the local structure at the middle circle A.

[0026] Fig.15 This is a schematic diagram of the partial structure of a control handle in a medical glue delivery device according to one embodiment.

[0027] Fig.16 for Fig.15 Enlarged view of the local structure at the middle circle B.

[0028] Fig.17 This is a schematic diagram from another perspective of a partial structure of a control handle in a medical glue delivery device according to one embodiment.

[0029] Fig.18 for Fig.17 Enlarged view of the local structure at the center circle C.

[0030] Fig.19 This is a schematic diagram of the partial structure of a control handle in a medical glue delivery device in another embodiment.

[0031] Fig. 20 for Fig.19Enlarged view of the local structure at the middle circle D.

[0032] Fig.21 It is a schematic diagram of the three-dimensional structure of a control handle of a medical glue delivery device according to another embodiment.

[0033] Fig. 22 It is a schematic structural diagram of a mounting platform on the outer side of a first shell in a control handle of a medical glue delivery device according to one embodiment.

[0034] Fig.23 This is a schematic structural diagram of a first switch cap in a control handle of a medical glue delivery device according to one embodiment.

[0035] Fig.24 This is a schematic diagram of the internal structure of a control handle of a medical glue delivery device in another embodiment.

[0036] Fig.25 for Fig.24 Enlarged view of the local structure at the middle circle E.

[0037] Fig.26 The present invention is a schematic diagram of the installation structure of the rotating part of the glue injection amount adjustment component in the first shell in the control handle of the medical glue delivery device according to one embodiment.

[0038] Fig. 27 for Fig.26 Enlarged view of the local structure at the center circle F. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0041] It should be noted that "distal" and "proximal" are used as directional terms, which are commonly used terms in the field of interventional medical devices, where "distal" refers to the end away from the operator (such as the doctor) during the operation, and "proximal" refers to the end close to the operator during the operation. Axial refers to the direction in which the central axis of the medical device extends; radial refers to the direction perpendicular to the above-mentioned axial direction.

[0042] Combination Figure 1 and Figure 2 As shown, an embodiment of the present application provides a medical glue delivery device, including a control handle 100 and a syringe 200. The syringe 200 includes a syringe barrel 201 and a push rod 202, and one end of the push rod 202 is in sealing contact with the inner wall of the syringe barrel 201 through a piston. The control handle 100 includes a handle housing 10, a glue injection assembly 20 and a check control assembly 30. The handle housing 10 is provided with a clamping portion 101, and the clamping portion 101 is used to clamp the syringe 200. That is, when the control handle 100 is used to operate the syringe 200 for injection, the syringe 200 can be clamped to the clamping portion 101 of the handle housing 10. It can be understood that the glue injection assembly 20 can apply a thrust to the push rod 202 of the syringe 200 of the clamping portion 101, so that the syringe 200 performs an injection.

[0043] The handle housing 10 includes a first shell 11 and a second shell 12. The first shell 11 and the second shell 12 can be connected by snap-fit ​​connection, or by screws or glue. The connection method between the first shell 11 and the second shell 12 is not limited here. The handle housing 10 serves as the outer shell structure of the control handle 100, which is convenient for the operator to hold and use. The space enclosed by the first shell 11 and the second shell 12 is used to assemble structures of the control handle 100 such as the glue injection component 20 and the check control component 30.

[0044] Combination Figure 2 and Figure 3 As shown, in some embodiments, the glue injection assembly 20 includes a glue injection button 21, a first spring 22, a first spring 23 and a glue injection push rod 24. The glue injection button 21 and the glue injection push rod 24 can be axially movably arranged on the handle housing 10. For the glue injection button 21, the glue injection button 21 is axially movably arranged on the handle housing 10. Therefore, the glue injection button 21 is located at the handle housing 10 in the circumferential and radial upper limits. In some embodiments, after the first shell 11 and the second shell 12 of the handle housing 10 are connected, the first shell 11 and the second shell 12 limit the circumferential and radial movement of the glue injection button 21.

[0045] One end of the first elastic sheet 22 is connected to the glue injection button 21 , and the other end is used to axially locate the glue injection push rod 24 and limit the glue injection push rod 24 from moving toward the proximal end, thereby achieving a check effect of the glue injection push rod 24 .

[0046] When the first elastic sheet 22 is squeezed, it can be deformed to release the axial positioning with the injection push rod 24 .

[0047] It should be noted that when the first spring piece 22 and the injection push rod 24 are axially positioned, the injection button 21 drives the first spring piece 22 to move toward the distal end, and the first spring piece 22 drives the injection push rod 24 to move toward the distal end. The syringe 201 is assembled on the clamping part 101, and the syringe 201 has an extrusion port 2011. The push rod 202 is opposite to the injection push rod 24. When the push rod 202 moves toward the distal end relative to the handle housing 10, it can press the push rod 202 of the syringe 200. In this way, the injection push rod 24 can achieve injection by pressing the push rod 202 of the syringe 200. That is, when the injection push rod 24 pushes the push rod 202 to move toward the distal end relative to the syringe 201, the medical glue contained in the syringe 201 is squeezed out from the extrusion port 2011.

[0048] There are many possible ways to connect the first spring sheet 22 and the glue injection button 21. Figure 3 As shown, the glue injection button 21 is provided with a clamping groove 211, and one end of the first spring piece 22 is embedded in the clamping groove 211. For another example, the first spring piece 22 is connected to the glue injection button 21 by a screw or a clamping structure. The connection method between the first spring piece 22 and the glue injection button 21 is not limited here.

[0049] The axial positioning method of the first spring piece 22 and the injection push rod 24 can be a stuck positioning. For example, there are a plurality of cams arranged axially on the injection push rod 24, and the recessed position between adjacent cams can be understood as a slot 241. In this way, when the end of the first spring piece 22 away from the injection button 21 is inserted into the slot 241, it will be limited by the cam, so that when the first spring piece 22 moves toward the far end, it will push the injection push rod 24 toward the far end through the corresponding cam, that is, the state of axial positioning of the first spring piece 22 and the injection push rod 24 is reached. Since the first spring piece 22 itself has elastic deformation ability, the first spring piece 22 can be disengaged from the slot 241 under external force compression, and then the axial positioning of the first spring piece 22 and the injection push rod 24 is released. At this time, the axial position of the injection push rod 24 relative to the handle housing 10 can be adjusted.

[0050] Combination Figure 3 and Figure 4 As shown, the inner wall of the handle housing 10 is provided with a first reinforcing rib 13. The first reinforcing rib 13 may be provided in the first shell 11 or in the second shell 12. In some embodiments, a portion of the first reinforcing rib 13 may be connected to the first shell 11, and another portion may be connected to the second shell 12. The arrangement of the first reinforcing rib 13 in the handle housing 10 is not limited herein.

[0051] A flange 212 is provided at the distal end of the glue injection button 21 . As the glue injection button 21 moves toward the proximal end, the flange 212 can move to abut against the first reinforcing rib 13 , thereby limiting the glue injection button 21 from continuing to move toward the proximal end.

[0052] The first spring 23 is in contact with the glue injection button 21 , and the first spring 23 is used to drive the glue injection button 21 to reset toward the proximal end relative to the handle housing 10 .

[0053] Combination Figure 4 As shown, in some embodiments, the proximal end of the first spring 23 abuts against the distal end of the flange 212 of the glue injection button 21 , and the distal end of the first spring 23 abuts against the handle housing 10 .

[0054] It should be noted that, when the glue injection button 21 is pushed toward the distal end, the glue injection button 21 moves axially toward the distal end, so that the flange 212 squeezes the first spring 23, so that the first spring 23 is compressed. Correspondingly, when the push on the glue injection button 21 is released, the first spring 23 restores its elastic deformation, so that the flange 212 moves toward the proximal end until the proximal end of the flange 212 abuts against the first reinforcing rib 13.

[0055] The glue injection push rod 24 is axially movable in the handle housing 10. In some embodiments, the glue injection push rod 24 is installed in the handle housing 10 by snapping the first shell 11 and the second shell 12 together.

[0056] It should be noted that the injection push rod 24 is axially movable in the handle housing 10, so that the handle housing 10 limits the circumferential and radial movement of the injection push rod 24, but does not limit its axial movement. Then, the injection push rod 24 can be moved toward the distal end to press the syringe 200 clamped on the handle housing 10, so that the injection stroke of the syringe 200 can be controlled.

[0057] like Figure 4 As shown, in some embodiments, the glue injection assembly 20 further includes a fixing clip 25, which is axially positioned in the handle housing 10 and clamped on the glue injection push rod 24. The fixing clip 25 has a first guide groove 251, and the glue injection push rod 24 has a guide rib 242, which is slidably matched with the first guide groove 251, so that the fixing clip 25 is used to guide the glue injection push rod 24 to move axially relative to the handle housing 10, thereby improving the axial movement stability of the glue injection push rod 24.

[0058] The arrangement manner and location of the fixing clip 25 in the handle housing 10 are not limited here.

[0059] For example, in some embodiments, the inner wall of the handle housing 10 is provided with a second reinforcing rib 14 and a third reinforcing rib 15 which are spaced apart, and the proximal end and the distal end of the fixing clamp 25 are respectively abutted against the second reinforcing rib 14 and the third reinforcing rib 15, so that the fixing clamp 25 remains stable in the handle housing 10, thereby facilitating the use of the fixing clamp 25 to guide the stability of the injection push rod 24 in the axial movement relative to the handle housing 10.

[0060] It can be understood that the second reinforcing rib 14 and the third reinforcing rib 15 can be disposed on the inner wall of at least one of the first shell 11 and the second shell 12 , which is not limited here.

[0061] In some embodiments, Figure 2 As shown, a slot 252 is provided in the middle of the fixing clip 25, and a latch is provided at a position of the handle housing 10 corresponding to the slot 252. The latch cooperates with the slot 252 to anchor the fixing clip 25, so that the fixing clip 25 remains stable relative to the handle housing 10, so that the fixing clip 25 can be used to improve the stability of the glue injection push rod 24 relative to the handle housing 10 along the axial direction.

[0062] Combination Figure 3 and Figure 4 As shown, the check control assembly 30 is used to squeeze or release the first spring sheet 22. When the check control assembly 30 squeezes the first spring sheet 22, the end of the first spring sheet 22 away from the injection button 21 is released from the card slot 241 on the injection push rod 24; when the check control assembly 30 releases the squeezing of the first spring sheet 22, the end of the first spring sheet 22 away from the injection button 21 is inserted into the card slot 241. In this embodiment, through the two states of squeezing and releasing the squeezing of the first spring sheet 22 by the check control assembly 30, it is possible to realize that when the squeezing of the first spring sheet 22 is released, it is convenient to move the injection push rod 24 toward the proximal end relative to the handle housing 10, thereby improving the convenience of operation; when the squeezing of the first spring sheet 22 is released, the first spring sheet 22 restricts the injection push rod 24 from retreating toward the proximal end, thereby playing a check function.

[0063] The check control assembly 30 is arranged between the glue injection push rod 24 and the glue injection button 21, so that it is not easy to accidentally touch the check control assembly 30 when the glue injection push rod 24 is driven by the glue injection button 21 to squeeze the push rod 202 of the syringe 200, thereby reducing the risk of failure of the check function of the check control assembly 30 due to accidental touching, so as to ensure the check effect of the check control assembly 30 on the glue injection push rod 24 and maintain the reliability of the glue injection operation.

[0064] Combination Figure 5 As shown, the non-return control assembly 30 includes a non-return button 31 , a non-return head 32 , a second spring 33 , a non-return slide rail 34 and a spring adjustment member 35 .

[0065] The check head 32 is a hollow structure, one end of the check button 31 is axially movable and penetrates the check head 32, and the other end is exposed to the handle housing 10. The check head 32 is fixed relative to the handle housing 10, so that the check button 31 can be operated to move axially relative to the check head 32 to achieve a pressing operation.

[0066] Combination Figure 2 and Figure 6As shown, in some installation modes, a first fixing block 321 is provided on the outer periphery of the check head 32, and a fixing groove 16 is provided on the inner wall of the handle housing 10 corresponding to the position of the first fixing block 321. The first fixing block 321 cooperates with the fixing groove 16, so that the check head 32 is installed and positioned in the handle housing 10. The installation and fixing method of the check head 32 in the handle housing 10 is not limited here.

[0067] Combination Figure 7 and Figure 8 As shown, the check button 31 is a hollow structure, and the outer wall of the check button 31 is provided with a plurality of sliding protrusions 311, and the sliding protrusions 311 extend in the axial direction. The inner wall of the check head 32 is provided with grooves corresponding to the positions of the plurality of sliding protrusions 311, and the sliding protrusions 311 and the grooves are slidably matched, so that when the check button 31 is pressed, the sliding protrusions 311 of the check button 31 slide along the grooves, and then the check button 31 moves axially relative to the check head 32.

[0068] The non-return slide rail 34 is connected to the spring adjusting member 35. The proximal end of the spring adjusting member 35 is connected to the non-return button 31. For example, the non-return button 31 is a hollow structure, and the proximal end of the spring adjusting member 35 is inserted into the inner cavity of the non-return button 31.

[0069] Combination Fig. 9 and Fig.10 As shown, in this embodiment, the proximal end of the non-return slide rail 34 is engaged with the distal end of the non-return button 31. The distal end of the non-return slide rail 34 abuts against the proximal end of the second spring 33.

[0070] The second spring 33 is used to drive the non-return rail 34 to return to the proximal end. In some embodiments, the distal end of the second spring 33 abuts against the reinforcing rib in the handle housing 10. Thus, the elastic force provided by the second spring 33 keeps the non-return rail 34 and the non-return head 32 against each other in the axial direction, preventing the two from moving in the axial direction and rotating in the circumferential direction.

[0071] Combination Figure 8 and Fig. 9 As shown, the check head 32 is provided with alternately arranged check grooves 322 and check grooves 323, and both the check grooves 322 and check grooves 323 penetrate the distal end surface of the check head 32. The check grooves 322 extend axially and are used for sliding cooperation with the check rails 34. The check rails 34 can switch to the check grooves 323 after sliding out of the check grooves 322.

[0072] Combination Fig.11 and Fig.12As shown, the axial extension length of the check groove 323 is less than the axial extension length of the check groove 322. Therefore, the position of the check rail 34 when it is matched with the check groove 323 is farther from the proximal end of the check button 31 than the position of the check rail 34 when it is matched with the check groove 322. In other words, by operating the check rail 34 to alternately switch between the check groove 322 and the check groove 323, it can be achieved that the check rail 34 is at different axial positions relative to the check head 32. Since the check head 32 is axially positioned on the handle housing 10, the check rail 34 is connected to the spring adjusting member 35. Therefore, when the check rail 34 is at different axial positions relative to the check head 32, the spring adjusting member 35 is at different axial positions relative to the handle housing 10, so that the spring adjusting member 35 can be adjusted to a state of squeezing the first spring sheet 22 and a state of releasing the squeezing of the first spring sheet 22.

[0073] When the spring adjusting member 35 is required to squeeze the first spring sheet 22, it is only necessary to operate the check button 31 to press the check rail 34 toward the distal end, so that the check rail 34 moves axially toward the distal end relative to the check head 32, and the spring adjusting member 35 squeezes the first spring sheet 22. When the pressing force on the check button 31 is released, the check rail 34 will switch axially to the check groove 323 on the check head 32. In this process, the second spring 33 provides a restoring force for the check rail 34 to move toward the proximal end. In this way, when the check rail 34 slides with the check groove 322, the second spring 33 drives the check rail 34 to slide toward the proximal end along the check groove 322, so that the spring adjusting member 35 moves toward the proximal end to release the squeezing of the first spring sheet 22. Correspondingly, when the non-return slide rail 34 switches to a position opposite to the non-return groove 323 , the non-return slide rail 34 finally abuts against the groove wall of the non-return groove 323 driven by the second spring 33 , thereby allowing the spring adjusting member 35 to keep squeezing the first spring leaf 22 .

[0074] Based on this, in the control handle 100 of the present application, the two states of squeezing and releasing the squeezing of the first spring sheet 22 by the spring sheet adjusting member 35 can be realized, that is, when the squeezing of the first spring sheet 22 is released, it is convenient to move the injection push rod 24 toward the proximal end relative to the handle housing 10, thereby improving the convenience of operation; at the same time, when the squeezing of the first spring sheet 22 is released by the spring sheet adjusting member 35, the first spring sheet 22 can limit the injection push rod 24 from retreating toward the proximal end, thereby playing a non-return function. In addition, under this structural setting, since the first spring sheet 22 corresponds to the injection push rod 24 and the injection button 21, and is used to transmit the pressing force of the injection button 21 to the injection push rod 24, and the spring sheet adjusting member 35 corresponds to the first spring sheet 22, in this way, the non-return control component 30 is located between the injection push rod 24 and the injection button 21, and it is not easy to be accidentally touched when pressing the injection push rod 24, thereby ensuring the stability of the non-return function.

[0075] Recombination Figure 3 and Figure 4 As shown, when using the control handle 100, the injection push rod 24 is first pulled toward the proximal end relative to the handle housing 10, and the distance from the distal end of the injection push rod 24 to the syringe barrel 201 of the handle housing 10 clamping the syringe 200 meets the placement requirement of the push rod 202 of the syringe 200. Then, the syringe 200 is installed on the clamping portion 101, that is, the syringe barrel 201 of the syringe 200 is installed on the clamping portion 101, and the distal end of the injection push rod 24 is abutted against the proximal end of the push rod 202 of the syringe 200.

[0076] It should be noted here that when the injection push rod 24 is pulled toward the proximal end relative to the handle housing 10, in order to prevent the first spring sheet 22 from restricting the injection push rod 24 from moving toward the proximal end, the check control assembly 30 needs to be used to release the restriction of the first spring sheet 22 on the injection push rod 24.

[0077] Specifically, by pressing the check button 31, the check button 31 pushes the check rail 34 and the spring adjusting member 35 to move toward the distal end relative to the handle housing 10, so that the spring adjusting member 35 squeezes the first spring 22, and then the first spring 22 elastically deforms toward the distal end to break away from the contact with the injection push rod 24, and then the limiting fit between the first spring 22 and the injection push rod 24 is released. In this way, the injection push rod 24 is no longer limited by the first spring 22, and then can move toward the proximal end relative to the handle housing 10.

[0078] Since the structural design of the check rail 34 in the check control assembly 30 alternately switches between the check slide groove 322 and the check groove 323, self-locking can be achieved, that is, the check control assembly 30 has a self-locking function, so that after the check button 31 is released, the spring adjusting member 35 continues to squeeze the first spring 22 so that the first spring 22 cannot be reset, so that the injection push rod 24 can be smoothly pulled toward the proximal end. When the injection push rod 24 is pulled toward the proximal end to the clamping portion 101 that can adapt to the syringe 200 to be clamped to the handle housing 10, for example, the injection push rod 24 is pulled to the extreme position relative to the handle housing 10 so that the distal end of the injection push rod 24 abuts against the handle housing 10 (that is, the injection push rod 24 cannot continue to move toward the proximal end relative to the handle housing 10). Pressing the check button 31 again causes the check rail 34 to switch axially to face the check slot 322 on the check head 32, so that the second spring 33 drives the check rail 34 to slide toward the proximal end along the check slot 322. In this way, the spring adjusting member 35 moves toward the proximal end to release the squeezing of the first spring sheet 22, and then the first spring sheet 22 recovers its deformation to abut against the protrusion on the injection push rod 24. At this time, the first spring sheet 22 plays a check role on the movement of the injection push rod 24 toward the proximal end.

[0079] The working principle of the check control assembly 30 can be combined with Figures 10 to 12 The number of grooves on the check head 32 is the same as the number of the sliding protrusions 311 on the check button 31. The grooves on the check head 32 are divided into two types in terms of shape, specifically, a first axial groove 324 and a second axial groove 325.

[0080] The non-return slide groove 322 is arranged corresponding to the first axial groove 324 and is connected to each other. The non-return groove 323 can be a wave-shaped groove, that is, the non-return groove 322 is wavy or serrated at the distal end of the corresponding non-return head 32. The number of wave-shaped grooves is twice the number of bosses on the non-return slide rail 34 (i.e., the part of the outer wall of the non-return slide rail 34 protruding to achieve sliding connection). The outer diameter of the sliding protrusion 311 of the non-return button 31 is slightly smaller than the outer diameter of the first axial groove 324 of the non-return head 32. The wave-shaped groove abuts against the boss of the non-return slide rail 34, and the boss of the non-return slide rail 34 is located in the second axial groove 325 of the non-return head 32. The outer diameter of the boss of the non-return slide rail 34 is slightly larger than the outer diameter of the second axial groove 325 of the non-return head 32. The non-return slide rail 34 and the spring adjustment member 35 can be a snap connection, which is not limited here. When the check button 31 is pressed to move it toward the distal end relative to the check head 32, the protrusion on the check rail 34 slides along the beveled tooth surface on the distal end surface of the check button 31 toward the proximal end; thereby driving the check rail 34 and the spring adjustment member 35 to move toward the distal end and compressing the second spring 33. Until the protrusion of the check rail 34 is completely pushed out of the second axial groove 325 of the check rail 3432. At this time, the check button 31 is released, and the protrusion of the check rail 34 slides toward the proximal end along the corrugated groove at the distal end of the check head 32 until it abuts against the bottom of the corrugated groove, forming a self-locking (such as Fig.12 When the non-return button 31 is pressed again, the non-return slide rail 34 and the non-return button 31 will return in the same motion. For the working principle of the non-return control component 30, reference can also be made to the PUSH-PUSH structure, which will not be repeated here.

[0081] Combination Figures 13 to 16 As shown, in some embodiments, the control handle 100 further includes a glue injection amount adjustment component 40. The glue injection amount adjustment component 40 is used to adjust the movement stroke of the glue injection button 21 relative to the handle housing 10, thereby adjusting the single glue injection amount when the glue injection button 21 is pressed.

[0082] The glue injection amount adjustment component 40 includes an adjustment button 41 , a support frame 42 , an adjustment spring 43 , a second spring 44 , a spring fixing clamp 45 , a spring angle adjustment member 46 and a tension spring 47 .

[0083] The support frame 42 is disposed in the handle housing 10. The arrangement of the support frame 42 in the handle housing 10 is not limited herein. For example, in some embodiments, the support frame 42 is provided with a snap-in groove, and the snap-in groove is engaged with the reinforcing rib in the handle housing 10 to achieve assembly and fixation of the support frame 42 in the handle housing 10. In some embodiments, the support frame 42 can also be installed in the handle housing 10 by screw connection or glue connection. In some embodiments, the support frame 42 can be integrally formed with the first shell 11 or the second shell 12 in the handle housing 10.

[0084] The support frame 42 is provided with a second guide groove 421, and the adjustment button 41 cooperates with the second guide groove 421 and can move toward the distal end and the proximal end in the second guide groove 421. In this embodiment, the support frame 42 supports the adjustment button 41, so that the adjustment button 41 has good stability when moving toward the distal end and the proximal end in the second guide groove 421.

[0085] In some embodiments, at least two guide protrusions 411 are provided on the adjustment button 41, and a slide groove 422 is provided at a position corresponding to the guide protrusion 411 of the support frame 42. The guide protrusion 411 and the slide groove 422 are slidably matched, thereby enhancing the stability of the adjustment button 41 moving in the distal and proximal directions relative to the support frame 42.

[0086] In some embodiments, a limiting groove 213 is provided on the glue injection button 21 along its axial direction, that is, the length direction of the limiting groove 213 extends along the axial direction of the glue injection button 21. The limiting groove 213 is used to cooperate with the adjustment button 41 and limit the axial movement stroke of the glue injection button 21, so as to achieve the purpose of controlling the amount of glue injection.

[0087] One end of the adjustment button 41 matches the limiting groove 213 on the glue injection button 21, and the other end is exposed to the handle housing 10. By applying a thrust to the end of the adjustment button 41 exposed to the handle housing 10, the axial position of the adjustment button 41 relative to the handle housing 10 can be adjusted. Since one end of the adjustment button 41 matches the limiting groove 213, the limiting groove 213 limits the adjustment stroke of the adjustment button 41, and then limits the pressing depth when injecting glue through the glue injection button 21. Since the adjustment button 41 can move in the distal and proximal directions on the support frame 42, the pressing depth of the glue injection button 21 can be adjusted by adjusting the axial position of the adjustment button 41 relative to the handle housing 10.

[0088] It should be noted that the adjustment spring 43 is used to apply an elastic force toward the proximal end to the adjustment button 41 .

[0089] Combination Fig.15 and Fig.16As shown, the adjustment button 41 has two axial cylinders, one of which is used to sleeve the adjustment spring 43 , and the other is used to engage with the second elastic sheet 44 to limit position.

[0090] For ease of understanding, the following description takes the two axial cylinders on the adjustment button 41 as an example, namely the first cylinder 412 and the second cylinder 413 , but it does not mean that the structure of the adjustment button 41 is limited to this.

[0091] The distal end of the first column 412 is inserted into the adjusting spring 43 and generates a compressive force on the adjusting spring 43 . That is, one end of the adjusting spring 43 is axially limited to the first column 412 , and the other end is axially limited to the handle housing 10 .

[0092] In some embodiments, a first limit block 4121 is provided on the first column 412. When the adjusting spring 43 is sleeved on the first column 412 and assembled in the third mounting groove, one end of the adjusting spring 43 abuts against the first limit block 4121, and the other end abuts against the groove wall of the third mounting groove. In this way, the adjusting spring 43 is axially positioned between the first limit block 4121 and the groove wall of the third mounting groove. In this way, when the adjusting button 41 moves toward the distal end, the first limit block 4121 will compress the adjusting spring 43. Accordingly, the adjusting spring 43 generates an elastic force toward the proximal end on the first limit block 4121, and then the adjusting button 41 has a tendency to reset toward the proximal end under the action of the elastic force of the adjusting spring 43.

[0093] The second column 413 of the adjustment button 41 is provided with a plurality of latch teeth 4131, which can cooperate with the second elastic sheet 44. Thus, the cooperation between the second elastic sheet 44 and the latch teeth 4131 can limit the axial movement of the second column 413, thereby achieving the purpose of limiting the position of the adjustment button 41 relative to the handle housing 10.

[0094] Understandably, when the second spring piece 44 is released from the engagement with the latching teeth 4131, the adjustment button 41 can move toward the proximal end under the elastic force of the adjustment spring 43. The second spring piece 44 cooperates with the latching teeth 4131 at different positions on the second column 413, so that the adjustment button 41 can be locked at different positions relative to the handle housing 10. It can be seen that, through this structural setting, not only can the position of the adjustment button 41 relative to the handle housing 10 be conveniently adjusted, but also the position of the adjustment button 41 relative to the handle housing 10 can be locked by utilizing the second spring piece 44 to cooperate with the latching teeth 4131 at different positions, so as to facilitate the convenience of the subsequent glue injection operation process.

[0095] The size of the latch teeth 4131 can match the thickness of the second elastic sheet 44. For example, the thickness of the second elastic sheet 44 is equal to the size of the latch teeth 4131 (that is, when the second elastic sheet 44 is latched in the groove between the latch teeth 4131, the surface of the second elastic sheet 44 is flush with the wall surface of the adjacent latch teeth 4131), so that the latch teeth 4131 can be used to stably hold the second elastic sheet 44. Of course, the thickness of the second elastic sheet 44 can be smaller than the size of the latch teeth 4131, or larger than the size of the latch teeth 4131, as long as the second elastic sheet 44 can cooperate with the latch teeth 4131 to limit the movement of the adjustment button 41 relative to the handle housing 10 toward the proximal end.

[0096] The first column 412 may be a cylinder, and the second column 413 may be a prism. The shapes of the first column 412 and the second column 413 are not limited here.

[0097] Continue to combine Fig.15 and Fig.16 As shown, in some embodiments, the second elastic sheet 44 is embedded in the groove of the elastic sheet fixing clip 45, and a mounting hole 441 is provided at the proximal end of the second elastic sheet 44. One end of the tension spring 47 is limited to the mounting hole 441, and the other end is limited to the handle housing 10. The tension spring 47 is used to keep the second elastic sheet 44 in a state of matching with the latching teeth 4131 of the second column 413, so that the second elastic sheet 44 can only move in the direction of releasing the matching with the latching teeth 4131 when the second elastic sheet 44 overcomes the elastic force of the tension spring 47.

[0098] The spring clip fixing clip 45 is a structural member for clamping the second spring clip 44. The spring clip fixing clip 45 can be rotatably connected to the handle housing 10, so that the second spring clip 44 can rotate with the spring clip fixing clip 45 to match or release the engagement with the latch teeth 4131. For example, the spring clip fixing clip 45 is provided with an axial hole, and the handle housing 10 is provided with a rotating shaft, and the rotating shaft is rotatably matched with the axial hole, so that the spring clip fixing clip 45 can rotate relative to the handle housing 10 around the rotating shaft.

[0099] The spring leaf angle adjustment member 46 is rotatably connected to the handle housing 10 and is used to press the second spring leaf 44 so that the second spring leaf 44 is released from the engagement with the latching tooth 4131 .

[0100] Combination Fig.14 , Fig.17 and Fig.18As shown, in some embodiments, the spring clip angle adjustment member 46 is provided with a circular boss 461, and a matching groove 17 is provided in the handle housing 10. The circular boss 461 is rotationally matched with the matching groove 17, so that the spring clip angle adjustment member 46 can rotate relative to the handle housing 10. Of course, the spring clip angle adjustment member 46 can also be rotationally connected to the handle housing 10 through a rotating shaft. In some embodiments, the spring clip angle adjustment member 46 can also be slidably connected to the handle housing 10, and the spring clip angle adjustment member 46 can slide relative to the handle by pressing the spring clip angle adjustment member 46, and the spring clip angle adjustment member 46 can slide relative to the handle until the second spring clip 44 is pressed to release the matching with the latch 4131.

[0101] The connection method between the spring angle adjustment member 46 and the handle housing 10 is not limited here.

[0102] The connection method between the tension spring 47 and the handle housing 10 includes but is not limited to connection by snap connection or screw connection.

[0103] For example, combined with Fig.14 As shown, in some embodiments, the handle housing 10 is provided with a fixing column 18, one end of the tension spring 47 is connected to the mounting hole 441 on the second elastic sheet 44, and the other end is limited to the fixing column 18. In this way, when the elastic sheet angle adjustment member 46 does not press the second elastic sheet 44, the second elastic sheet 44 keeps matching with the locking teeth 4131 of the second column 413 on the adjustment button 4144 under the action of the tension spring 47.

[0104] It should be noted that in the embodiment where a limiting groove 213 is provided on the glue injection button 21 along its axial direction, one end of the adjustment button 41 matches the limiting groove 213 and the other end is exposed from the handle housing 10 .

[0105] See again Figure 1 and Figure 2 As shown, the handle housing 10 is provided with an escape groove 19 at a position corresponding to the adjustment button 41, and part of the structure of the adjustment button 41 extends out from the escape groove 19, so as to facilitate the operation of the position of the adjustment button 41 relative to the handle housing 10. It should be noted that, in the embodiment in which the handle housing 10 includes a first shell 11 and a second shell 12, if the end of the adjustment button 41 away from the injection button 21 corresponds to the first shell 11, the escape groove 19 is provided in the first shell 11. If the end of the adjustment button 41 away from the injection button 21 corresponds to the second shell 12, the escape groove 19 is provided in the second shell 12.

[0106] Furthermore, a glue injection scale 102 is provided on the handle housing 10 corresponding to the air avoidance groove 19, so that when the adjustment button 41 moves to different positions relative to the handle housing 10, different glue injection scales 102 will correspond. Since the adjustment button 41 limits the movement stroke of the glue injection button 21, when the adjustment button 41 moves relative to the handle housing 10 to correspond to different glue injection scales 102, the corresponding glue injection amount can be indicated by the glue injection scale 102, and the glue injection amount refers to the amount of glue that the glue injection button 21 drives the glue injection push rod 24 to operate the syringe 200 to push out in a single stroke range limited by the adjustment button 41. It can be understood that by repeatedly pressing the glue injection button 21, the medical glue in the syringe 200 can be pushed out one by one with the glue amount pushed out in a single time as a unit.

[0107] The number of scales in the glue injection scale 102 and the corresponding glue injection amount can be configured as needed. For example, there are 5 glue injection scales 102 on the handle shell 10 (such as the first shell 11) used to indicate the amount of glue extruded in a single time, and each glue injection scale 102 represents 0.05mL. Then, under the indication of the glue injection scale 102, the amount of glue pushed out by the syringe 200 when the glue injection button 21 is pressed once can be understood according to the glue injection amount indicated by the glue injection scale 102 corresponding to the adjustment button 41 (corresponding to the glue injection amount indicated by the glue injection scale 102 corresponding to the adjustment button 41). In this way, the amount of glue squeezed out of the syringe 200 when the glue injection button 21 is pressed can be quickly understood according to the adjustment button 41.

[0108] In some embodiments, the syringe barrel 201 of the syringe 200 has an extrusion port 2011, and the extrusion port 2011 is connected to a catheter, and the catheter is used to guide the syringe 200 to transport the medical glue into the lumen of the blood vessel.

[0109] In some embodiments, the adjustment button 41 can achieve stepless adjustment from 0.05 mL to 0.25 mL.

[0110] In order to facilitate understanding of the control of the single glue amount by the adjustment button 41, the following will be combined with Figures 15 to 18 The structural principle is further explained.

[0111] When adjusting the injection volume, the adjustment button 41 is pressed, and the adjustment spring 43 is compressed. Since a plurality of latching teeth 4131 are provided on the second column 413 of the adjustment button 41, the proximal end of the second elastic sheet 44 is pulled by the tension spring 47, and the distal end of the second elastic sheet 44 is closely attached to the adjustment button 41 to cooperate with the latching teeth 4131 on the second column 413. In this way, the second elastic sheet 44 restricts the adjustment button 41 from moving toward the proximal end and resetting.

[0112] When the volume of the injection volume needs to be changed from a larger volume to a smaller volume, the second spring sheet 44 is rotated by pressing the spring sheet angle adjustment member 46, and then the distal end of the second spring sheet 44 is separated from the latching teeth 4131 on the second column 413 of the adjustment button 41, and then the second spring sheet 44 releases the lock on the adjustment button 41, that is, the freedom of the adjustment button 41 to move toward the proximal end is restored. Since the adjustment spring 43 is in a compressed state at this time, after the second spring sheet 44 releases the lock on the adjustment button 41, the adjustment button 41 is reset toward the proximal end relative to the handle housing 10 under the elastic force of the adjustment spring 43.

[0113] The injection amount adjustment component 40 is not limited to the structural form of the above embodiment.

[0114] For example, in another embodiment, Fig.19 and Fig. 20 As shown, the injection amount adjustment component 40 includes a first switch 401 and a second switch 402. Fig.21 As shown, the first switch 401 and the second switch 402 are both movably connected to the handle housing 10. The first switch 401 and the second switch 402 are used to alternately cooperate with the glue injection button 21. Among them, when the first switch 401 cooperates with the glue injection button 21, the axial movement stroke of the glue injection button 21 relative to the handle housing 10 is a first stroke, and when the second switch 402 cooperates with the glue injection button 21, the axial movement stroke of the glue injection button 21 relative to the handle housing 10 is a second stroke, and the first stroke is different from the second stroke. In this way, the movement stroke of the glue injection button 21 relative to the handle housing 10 is adjusted by switching the first switch 401 and the second switch 402 to cooperate with the glue injection button 21, so as to achieve the purpose of adjusting the amount of glue injection.

[0115] For ease of description, the cooperation between the switch and the glue injection button 21 is referred to as "activation" below, that is, when the first switch 401 is activated, it means that the first switch 401 is coordinated with the glue injection button 21, and the first switch 401 limits the movement of the glue injection button 21. Correspondingly, when the second switch 402 is activated, it means that the second switch 402 is coordinated with the glue injection button 21, and the second switch 402 limits the movement of the glue injection button 21.

[0116] During the glue injection operation, the glue injection button 21 pushes the glue injection push rod 24 toward the distal end through the first spring sheet 22, so that the glue injection push rod 24 pushes the push rod 202 of the syringe 200, thereby realizing that the syringe 200 pushes out the medical glue. Based on this, the movement stroke of the glue injection button 21 is related to the displacement of the push rod 202 of the syringe 200 by the glue injection push rod 24, which in turn affects the injection amount of the medical glue.

[0117] For example, when the first switch 401 is enabled, the amount of glue pushed out by a single press of the glue injection button 21 controlled by the glue injection amount adjustment component 40 is 1 mL, and when the second switch 402 is enabled, the amount of glue pushed out by a single press of the glue injection button 21 controlled by the glue injection amount adjustment component 40 is 2 mL. The glue amount control corresponding to the first switch 401 and the second switch 402 is not limited thereto.

[0118] The installation methods of the first switch 401 and the second switch 402 on the handle housing 10 may be the same or different, as long as they can each achieve corresponding control functions, and no limitation is made here.

[0119] Combination Fig. 20 As shown, the first switch 401 and the second switch 402 are both provided with a second stopper 403 arranged along the axial direction. The first switch 401 and the second switch 402 can be mounted on the handle housing 10 through a switch cap, and the switch cap is used to prevent the corresponding switch from falling off from the handle housing 10 to increase structural stability.

[0120] For ease of understanding, combined Figure 21 to Figure 23 As shown, the switch cap used to assemble the first switch 401 is called "first switch cap 404", and the switch cap used to assemble the second switch 402 is called "second switch cap 405". The first switch cap 404 and the second switch cap 405 can have the same structure.

[0121] Take the structure of the first switch cap 404 as an example. The top of the first switch cap 404 is provided with a circular groove 4041 and two strip grooves 4042 located on the side wall of the circular groove 4041. The positions of the two strip grooves 4042 on the circular groove 4041 are arranged at intervals of 180° around the circumference of the first switch cap 404. When installing the first switch 401, the first switch 401 passes through the circular groove 4041, and the two second limit blocks 403 on the first switch 401 pass through the two strip grooves 4042 respectively. Then, the first switch 401 is rotated at a certain angle, so that the second limit block 403 and the strip groove 4042 are staggered with each other, and then when the first switch cap 404 is connected to the handle housing 10, the first switch 401 can be restricted from being separated from the handle housing 10.

[0122] It should be noted that the number of the second limit blocks 403 and the number of the strip grooves 4042 are not limited to 2. For example, the number of the second limit blocks 403 is 1, or it can be 2 or more. The setting position and number of the second limit blocks 403 are not limited here. As long as the first switch 401 is movably mounted on the handle housing 10, it can be matched with and released from the glue injection button 21. Correspondingly, the installation structure of the second switch 402 relative to the handle housing 10 is not limited here, as long as the second switch 402 is movably mounted on the handle housing 10, it can be matched with and released from the glue injection button 21.

[0123] In some embodiments, the number of the second limit blocks 403 on the first switch 401 may be two, and the two second limit blocks 403 may be symmetrically arranged about the axis of the first switch 401. Correspondingly, the number of the second limit blocks 403 on the second switch 402 may also be two and symmetrically arranged about the axis of the second switch 402.

[0124] Combination Fig.21 and Fig. 22 As shown, in some embodiments, a mounting platform is provided on the outer side of the first shell 11 at positions corresponding to the first switch 401 and the second switch 402 , and the mounting platform is provided with a through hole, which passes through the mounting platform and the first shell 11 .

[0125] For ease of explanation, the mounting platform corresponding to the first switch 401 is referred to as the "first mounting platform 406", and the through hole on the first mounting platform 406 is referred to as the "first through hole 4061"; the mounting platform corresponding to the second switch 402 is referred to as the "second mounting platform 407", and the through hole on the second mounting platform 407 is referred to as the "second through hole 4071".

[0126] The first switch 401 is axially movably disposed in the first through hole 4061, the first switch cap 404 is connected to the first mounting platform 406, and the first switch cap 404 restricts the first switch 401 from being disengaged from the first through hole 4061. The second switch 402 is axially movably disposed in the second through hole 4071, the second switch cap 405 is connected to the second mounting platform 407, and the second switch cap 405 restricts the second switch 402 from being disengaged from the second through hole 4071.

[0127] Combination Fig. 22 and Fig.23As shown, the inner wall of the first switch cap 404 is provided with a protrusion 4043, and the outer wall of the first mounting platform 406 is provided with an L-shaped groove 4062, and the protrusion 4043 cooperates with the L-shaped groove 4062, so as to realize the connection and fixation of the first switch cap 404 to the first mounting platform 406. When installing the first switch cap 404, the protrusion 4043 can be first pressed along the L-shaped groove 4062 to be opposite to the bottom of the L-shaped groove 4062, and then rotated, so that the cooperation between the protrusion 4043 and the L-shaped groove 4062 can prevent the first switch cap 404 from being separated from the first mounting platform 406.

[0128] It should be noted that the connection method of the first switch cap 404 to the handle housing 10 is not limited to the cooperation of the protrusion 4043 and the L-shaped groove 4062 on the first mounting platform 406. For example, in some embodiments, the first switch cap 404 can also be connected to the handle housing 10 by a snap connection or a threaded connection. Correspondingly, in addition to the cooperation of the protrusion 4043 of the first switch cap 404 and the L-shaped groove 4062 on the first mounting platform 406, the second switch cap 405 can also be connected to the handle housing 10 by a snap connection or a threaded connection.

[0129] The installation method of the first switch cap 404 and the second switch cap 405 on the handle housing 10 is not limited here.

[0130] Combination Figure 24 to Figure 27 As shown, the injection amount adjustment assembly 40 includes a torsion spring 408, a rotating member 409 and a reset spring 410. The rotating member 409 is rotatably connected to the handle housing 10, and the torsion spring 408 is used to drive the rotating member 409 to perform a rotational reset motion. The first switch 401 and the second switch 402 are each provided with a reset spring 410.

[0131] The rotating member 409 may be a centrally symmetrical structure. The rotating member 409 has a first inclined surface 4091 and a second inclined surface 4092. The torsion spring 408 may be mounted on a positioning pin on the inner wall of the handle housing 10, with one side in contact with the rotating member 409 and the other side positioned at the handle housing 10. The installation method of the torsion spring 408 is not limited here, as long as the torsion spring 408 can provide a continuous circumferential force for the rotating member 409 so that the rotating member 409 can rotate and reset. In other words, the rotating member 409 will remain in the initial position under the action of the torsion spring 408, and when the external force drives the rotating member 409 to rotate, the torsion of the torsion spring 408 needs to be overcome, so that when the external force on the rotating member 409 is withdrawn, the torsion spring 408 drives the rotating member 409 to rotate and reset.

[0132] Combination Fig.26 and Fig. 27As shown, the inner wall of the handle housing 10 is provided with a first limiting protrusion 103 and a second limiting protrusion 104 at positions corresponding to the first mounting platform 406 and the second mounting platform 407, respectively. The first limiting protrusion 103 and the second limiting protrusion 104 are centrally symmetrically arranged with respect to the rotation center of the rotating member 409, and are located on different sides in the rotation direction of the rotating member 409. In this embodiment, the first limiting protrusion 103 and the second limiting protrusion 104 are used to limit the rotation of the rotating member 409 within a certain angle to prevent the rotating member 409 from excessively rotating in the circumferential direction. It should be noted that both the first limiting protrusion 103 and the second limiting protrusion 104 can limit the rotation angle of the rotating member 409. Therefore, in some embodiments, only one of the first limiting protrusion 103 and the second limiting protrusion 104 needs to be provided.

[0133] The return spring 410 sleeved on the first switch 401 is located in the first through hole 4061 and applies an elastic force to the first switch 401 away from the first shell 11. The return spring 410 sleeved on the second switch 402 is located in the second through hole 4071 and applies an elastic force to the first switch 401 away from the first shell 11.

[0134] Recombination Fig.19 and Fig. 20 As shown, the first switch 401 and the second switch 402 are both provided with a first slot C1 and a second slot C2 arranged along the axial direction. The first switch 401 and the second switch 402 are respectively opposite to the first inclined surface 4091 and the second inclined surface 4092, and the first switch 401 and the second switch 402 have the first slot C1 and the second slot C2 on one side facing different sides in the rotation direction of the rotating member 409.

[0135] The glue injection button 21 is provided with a first groove 214 and a second groove 215 along the axial direction, and the first groove 214 and the second groove 215 correspond to the first switch 401 and the second switch 402 respectively. When the first switch 401 is pressed, the first switch 401 squeezes the reset spring 410, and the second slot C2 squeezes the first inclined surface 4091 of the rotating member 409, so that the rotating member 409 overcomes the torsion of the torsion spring 408 and rotates, thus squeezing the torsion spring 408 to produce deformation. When the second slot C2 passes over the first inclined surface 4091, the rotating member 409 resets under the torsion of the torsion spring 408, so that the first inclined surface 4091 is stuck at the first slot C1. At this time, the non-pressing side of the first switch 401 extends into the first groove 214 of the glue injection button 21 to limit the depth of the glue injection button 21 pressed toward the far end.

[0136] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0137] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A control handle, characterized in that: include: A handle housing having a clamping portion, wherein the clamping portion is used to clamp a syringe; A glue injection assembly, the glue injection assembly is used to apply a thrust to the push rod of the syringe; the glue injection assembly includes a glue injection button, a first spring, a first spring and a glue injection push rod, the glue injection button and the glue injection push rod are both axially movably arranged on the handle housing, a plurality of slots are axially arranged on the glue injection push rod, one end of the first spring is connected to the glue injection button, and the other end is used to cooperate with the slot, and when the first spring cooperates with the slot, the glue injection push rod is restricted from moving toward the proximal end relative to the handle housing, the first spring is in contact with the glue injection button, and the first spring is used to drive the glue injection button to reset relative to the handle housing toward the proximal end; A check control assembly is arranged between the glue injection push rod and the glue injection button, and the check control assembly is used to squeeze the first spring sheet or release the squeezing of the first spring sheet. When the check control assembly squeezes the first spring sheet, one end of the first spring sheet away from the glue injection button is released from the card slot on the glue injection push rod; when the check control assembly releases the squeezing of the first spring sheet, one end of the first spring sheet away from the glue injection button is stuck in the card slot; The check control assembly includes a check button, a check head, a second spring, a check slide rail and a spring piece adjusting member, one end of the check button can be axially movably arranged in the check head, and the other end is exposed from the handle housing, the check head is fixed relative to the handle housing, the outer wall of the check button is provided with a plurality of sliding protrusions, the inner wall of the check head is provided with grooves corresponding to the positions of the plurality of sliding protrusions, the sliding protrusions and the grooves are slidably matched, the check slide rail is connected to the spring piece adjusting member, the proximal end of the spring piece adjusting member is connected to the check button, the proximal end of the check slide rail is meshed with the distal end of the check button, the distal end of the check slide rail abuts against the proximal end of the second spring, and the second spring is used to drive the check slide rail to reset toward the proximal end; Among them, the check head is provided with alternating check grooves and check grooves, the check grooves and the check grooves both pass through the distal end surface of the check head, the check grooves extend axially upward and are used for sliding cooperation with the check rail, when the check rail slides out of the check grooves, it can switch to the check grooves, and the axial extension length of the check grooves is less than the axial extension length of the check grooves.

2. The control handle according to claim 1, characterized in that: The inner wall of the handle shell is provided with a first reinforcing rib, and the distal end of the glue injection button is provided with a flange. The flange can move relative to the handle shell with the glue injection button to abut against the first reinforcing rib, the proximal end of the first spring abuts against the distal end of the flange, and the distal end of the first spring abuts against the handle shell.

3. The control handle according to claim 1, characterized in that: The glue injection assembly includes a fixing clamp, which is axially positioned in the handle housing and clamped on the glue injection push rod. The fixing clamp has a first guide groove, and the glue injection push rod has a guide rib, and the guide rib is slidably matched with the first guide groove.

4. The control handle according to claim 1, characterized in that: The control handle also includes a glue injection amount adjustment component, and the glue injection amount adjustment component is used to adjust the movement stroke of the glue injection button relative to the handle housing.

5. The control handle according to claim 4, characterized in that: The glue injection amount adjustment component includes an adjustment button, a support frame, an adjustment spring, a second spring sheet, a spring sheet fixing clip, a spring sheet angle adjustment piece and a tension spring. The support frame is provided with a second guide groove, the adjustment button cooperates with the second guide groove, and can move in the second guide groove toward the distal end and the proximal end. A limiting groove is provided on the glue injection button along its axial direction, one end of the adjustment button matches the limiting groove, and the other end is exposed from the handle housing. The adjustment button includes two axial cylinders, one of which is used to sleeve the adjustment spring, and the other axial cylinder is provided with a plurality of latch teeth, and the latch teeth are used to limit the movement of the adjustment button toward the proximal end when engaging with the second spring sheet. The spring sheet fixing clip is rotatably connected to the handle housing and is used to clamp the second spring sheet. A mounting hole is provided at the proximal end of the second spring sheet, one end of the tension spring is limited at the mounting hole, and the other end is limited at the handle housing. The spring sheet angle adjustment piece is used to press the second spring sheet so that the second spring sheet is released from the engagement with the latch teeth.

6. The control handle according to claim 5, characterized in that: The handle shell is provided with a clearance groove at a position corresponding to the adjustment button, and the handle shell is provided with a plurality of glue injection scales corresponding to the clearance groove. When the adjustment button moves to different positions relative to the handle shell, different glue injection scales correspond.

7. The control handle according to claim 5 or 6, characterized in that: The spring angle adjustment member is rotationally connected or slidably connected to the handle housing.

8. The control handle according to claim 4, characterized in that: The glue injection amount adjustment component includes a first switch and a second switch, and the first switch and the second switch are both movably connected to the handle shell. The first switch and the second switch are used to alternately cooperate with the glue injection button. When the first switch cooperates with the glue injection button, the axial movement stroke of the glue injection button relative to the handle shell is a first stroke. When the second switch cooperates with the glue injection button, the axial movement stroke of the glue injection button relative to the handle shell is a second stroke. The first stroke is different from the second stroke.

9. The control handle according to claim 8, characterized in that: The injection amount adjustment component includes a torsion spring, a rotating member and a reset spring. The rotating member is rotatably connected to the handle housing. The torsion spring is used to drive the rotating member to perform a rotational reset motion. The reset spring is respectively sleeved on the first switch and the second switch. The rotating member is a centrally symmetrical structure. The rotating member has a first inclined surface and a second inclined surface. The first switch and the second switch are both provided with a first slot and a second slot arranged along the axial direction. The first switch and the second switch are respectively opposite to the first inclined surface and the second inclined surface, and the first switch and the second switch have a side with the first slot and the second slot facing different sides in the rotation direction of the rotating member. The injection button is provided with a first groove and a second groove along the axial direction. The first groove and the second groove correspond to the first switch and the second switch respectively. When the first switch is pressed, the mounting platform of the first switch squeezes the spring, and the second groove of the first switch squeezes the first inclined surface of the rotating member, so that the rotating member rotates and squeezes the torsion spring to produce deformation. When the second slot passes over the first inclined surface, the first inclined surface is stuck at the first groove under the elastic force of the torsion spring.

10. The control handle according to claim 9, characterized in that: The inner wall of the handle housing is provided with a first limiting protrusion and a second limiting protrusion, the first limiting protrusion and the second limiting protrusion are centrally symmetrically arranged with respect to the rotation center of the rotating member, and are located on different sides in the rotation direction of the rotating member.

11. A medical glue delivery device, characterized in that: It comprises a syringe and a control handle as described in any one of claims 1 to 10, wherein the syringe comprises a syringe barrel and a push rod, one end of the push rod is in sealing contact with the inner wall of the syringe barrel through a piston, the syringe barrel is assembled on the clamping portion, and the syringe barrel has an extrusion port, the push rod is opposite to the glue injection push rod, and when the glue injection push rod pushes the push rod to move toward the distal end relative to the syringe barrel, the medical glue contained in the syringe barrel is extruded from the extrusion port.

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