Injection mechanism and ablation equipment

Abstract

The utility model discloses an injection mechanism and ablation treatment equipment. The injection mechanism comprises an injection cylinder, a push injection rod, an injection driving structure and a first detection structure, the injection cylinder is hollow, and an injection head is arranged at the front end of the injection cylinder; the injection rod is movably sleeved in the syringe from the rear end of the syringe and has a forward injection state and a backward drawing state; the injection driving structure is connected with the push injection rod and used for driving the push injection rod to move in the axial direction of the injection cylinder so as to be switched between a push injection state and a pull state; the first detection structure is arranged on the injection driving structure, when the injection rod is in the injection state, the first detection structure is in a first working state, and when the injection rod is in the drawing state, the first detection structure is in a second working state. According to the technical scheme, it can be guaranteed that energy supply of the ablation treatment equipment to the affected part is more uniform, it is guaranteed that energy conduction is more stable, and therefore the treatment effect on the affected part is better.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and in particular to an injection mechanism and an ablation device. Background Art

[0002] For human solid tumors, cancers, and lesions (including but not limited to chronic obstructive pulmonary disease, gastrointestinal lesions, prostate hyperplasia, etc.), the currently used energy ablation methods, such as radiofrequency, plasma, microwave, ultrasound, laser, etc., have the following defects: 1. Limited energy conduction, such as charring; 2. Uneven energy generation, with a gradient decrease in energy center and energy edge, resulting in uneven and incomplete tissue treatment; 3. Large energy action range and large trauma. Utility Model Content

[0003] In order to solve the above technical problems, the main purpose of the present invention is to provide an injection mechanism and an ablation device, aiming to improve the defects of traditional methods.

[0004] In order to achieve the above-mentioned purpose, the present invention provides an injection mechanism, comprising:

[0005] The syringe is hollow and has an injection head at the front end;

[0006] An injection rod is movably sleeved in the injection barrel from the rear end of the injection barrel, and has a forward injection state and a backward pulling state;

[0007] an injection drive structure connected to the push rod, for driving the push rod to move along the axial direction of the syringe to switch between the push state and the withdrawal state;

[0008] The first detection structure is provided on the injection drive structure. When the push rod is in the pushing state, the first detection structure is in a first working state. When the push rod is in the pulling state, the first detection structure is in a second working state.

[0009] Optionally, the injection drive structure includes:

[0010] injection driver;

[0011] a transmission component, connecting the injection driver and the injection rod, wherein the first detection structure is provided on the transmission component;

[0012] The push rod has a first position and a second position movable relative to the transmission component. When the push rod is in the push state, the push rod is in the first position and abuts against the first detection structure, so that the first detection structure is in a first working state.

[0013] When the injection rod is in the pulled state, the injection rod is at the second position and is separated from the first detection structure, so that the first detection structure is in the second working state.

[0014] Optionally, the transmission component includes:

[0015] A mounting cover is provided on the rear side of the injection rod;

[0016] A transmission rod, one end of which is connected to the mounting cover, and the other end of which is provided with a clamping portion, wherein the clamping portion is clamped on the syringe and can move relative to the syringe, and the injection driver is connected to the transmission rod;

[0017] The first detection structure is provided on the mounting cover. When the injection rod is in the injection state, the rear end of the injection rod abuts against the first detection structure, and the first detection structure is in the first working state.

[0018] Optionally, the mounting cover and the transmission rod are integrally formed.

[0019] Optionally, the mounting cover is provided with a through hole; and the first detection structure includes:

[0020] A detection rod is rotatably arranged on a side of the mounting cover facing away from the injection rod;

[0021] a first abutting protrusion, protruding from a side of the detection rod facing the injection rod and at least partially extending from the through hole;

[0022] A detection piece, provided on the detection rod;

[0023] A first sensor is provided on the mounting cover and has a detection area;

[0024] When the push rod is in the push state, the push rod abuts against the first abutting protrusion to drive the detection rod to rotate, so that the detection piece is located outside the detection area and the first sensor is in the first working state.

[0025] Optionally, the first detection structure further includes an elastic reset member, both ends of which are connected to the detection rod and the mounting cover, so that when the injection rod is in the pulled state, the elastic reset member can provide an elastic reset force to the detection rod, driving the detection rod to rotate, so that the detection piece can be located within the detection area and the first sensor can enter the second working state.

[0026] Optionally, the first detection structure further includes a second sensor and a second abutting protrusion provided on a side of the detection rod facing away from the first abutting protrusion, wherein the second sensor and the second abutting protrusion are provided with a relative interval;

[0027] When the push rod is in the push state, the second abutting protrusion abuts against the second sensor; when the push rod is in the pulled state, the second abutting protrusion is separated from the second sensor.

[0028] Optionally, the clamping portion includes an elastic clamp, the elastic clamp is formed with a clamping area, and the inner diameter of the clamping area of the elastic clamp is adjustable.

[0029] Optionally, the injection mechanism further includes a third sensor, which is provided on the elastic clamp and can be used to detect the inner diameter of the clamping area.

[0030] The utility model also provides an ablation device, comprising the above-mentioned injection mechanism.

[0031] The technical solution provided by the utility model has the following beneficial effects:

[0032] The injection mechanism provided by the present invention includes a syringe, a push rod, an injection drive structure and a first detection structure. The syringe is hollow, and the interior of the syringe can be used to accommodate medical gas or liquid. The push rod moves along the syringe. When the push rod is in the pushing state, the push rod can squeeze the gas or liquid in the syringe out from the injection head of the syringe; when the push rod is in the pulled state, the gas or liquid can be injected through the push rod, so that new gas or liquid can be refilled into the syringe; and the injection drive structure can drive the push rod to move automatically, without the need for manual pushing of gas or liquid, which is more intelligent, and driving by the injection drive structure can ensure a more uniform pushing speed, so that the amount of gas or liquid supplied is more uniform, and the treatment effect on the affected area is better; and the first detection structure can monitor the state of the push rod to ensure that the push rod and the syringe are installed in place. The air or liquid delivery of the entire injection mechanism is more intelligent, has higher working efficiency, and has a more uniform air or liquid delivery rate, which can ensure that the ablation treatment device supplies energy to the affected area more evenly and ensures more stable energy conduction, thereby achieving a better treatment effect on the affected area. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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 use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1 This is a structural schematic diagram of an embodiment of an injection mechanism provided by the utility model;

[0035] Figure 2 for Figure 1 A schematic structural diagram of the injection mechanism (the push rod is in the push state);

[0036] Figure 3 for Figure 2 A schematic cross-sectional view of the injection mechanism (the push rod is in the push state);

[0037] Figure 4 for Figure 1 A schematic structural diagram of the injection mechanism (the injection rod is in a pulled-out state);

[0038] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the injection mechanism (the injection rod is in the pulled state).

[0039] Description of Figure Numbers:

[0040] 100-injection mechanism; 1-injection cylinder; 11-injection head; 2-injection rod; 3-injection drive structure; 31-mounting cover; 32-transmission rod; 33-clamp; 4-first detection structure; 41-detection rod; 42-first abutment protrusion; 43-second abutment protrusion; 44-detection sheet; 45-first sensor; 46-second sensor; 47-elastic reset member.

[0041] The realization of the purpose, functional features and excellent effects of the utility model will be further explained below with reference to specific embodiments and drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] It should be noted that if directional indications are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The present invention provides an injection mechanism 100, which can be applied to an ablation treatment device. The injection mechanism 100 provides liquid or gas to an introduction sheath of the ablation device to conduct energy to the introduction sheath, thereby treating the affected area.

[0046] Specifically, see Figure 1 and Figure 2 In this embodiment, the injection mechanism 100 includes a syringe 1, a push rod 2, an injection drive structure 3 and a first detection structure 4. The syringe 1 is hollow and has an injection head 11 at the front end; the push rod 2 is movably sleeved in the syringe 1 from the rear end of the syringe 1 and has a forward pushing state and a backward pulling state; the injection drive structure 3 is connected to the push rod 2 and is used to drive the push rod 2 to move along the axial direction of the syringe 1 to switch between the pushing state and the pulling state; the first detection structure 4 is provided on the injection drive structure 3. When the push rod 2 is in the pushing state, the first detection structure 4 is in a first working state. When the push rod 2 is in the pulling state, the first detection structure 4 is in a second working state.

[0047] In this embodiment, the interior of the syringe 1 can be used to accommodate medical gas or liquid, and the push rod 2 moves along the syringe 1. When the push rod 2 is in the pushing state, the push rod 2 can push the gas or liquid in the syringe 1 out from the injection head 11 of the syringe 1; when the push rod 2 is in the pulling state, the gas or liquid can be injected through the push rod 2, so that new gas or liquid can be refilled into the syringe 1; and the push rod 2 can be driven to move automatically by the injection drive structure 3, without the need for manual pushing of gas or liquid, which is more intelligent, and the driving by the injection drive structure 3 can ensure a more uniform pushing speed, so that the amount of gas or liquid supplied is more uniform, and the treatment effect on the affected area is better; and the state of the push rod 2 can be monitored by the first detection structure 4 to ensure that the push rod 2 is aligned with the syringe 1 and installed in place. The entire injection mechanism 100 has a more intelligent air or liquid delivery, a higher working efficiency, and a more uniform air or liquid delivery rate, which can ensure that the ablation treatment device supplies energy to the affected area more evenly and ensures more stable energy conduction, thereby achieving a better treatment effect on the affected area.

[0048] Among them, such as Figure 1 As shown in , the syringe 1 is generally cylindrical in shape, with the injection head 11 located at one axial end of the syringe 1. The other axial end of the syringe 1 is open, and the push rod 2 can be pushed into the syringe 1 from the open end. Assuming that the end of the syringe 1 provided with the injection head 11 is the front end, the push rod 2 can be sleeved into the syringe 1 from the rear end of the syringe 1 to push liquid or gas out of the syringe 1. For ease of explanation, the following description will mainly focus on pushing liquid as an example.

[0049] It is understandable that there are many ways for the injection drive structure 3 to drive the push rod 2 to move axially along the injection barrel 1. Preferably, the injection drive structure 3 includes an injection driver and a transmission component; the transmission component connects the injection driver and the push rod 2, and the first detection structure 4 is provided on the transmission component; the push rod 2 has a first position and a second position that move relative to the transmission component. When the push rod 2 is in the pushing state, the push rod 2 is in the first position and acts on the first detection structure 4, so that the first detection structure 4 is in a first working state to detect that the push rod 2 and the injection barrel 1 are in a loaded state; when the push rod 2 is in the withdrawn state, the push rod 2 is in the second position and is separated from the first detection structure 4, so that the first detection structure 4 is in a second working state to detect that the push rod 2 and the injection barrel 1 are not in a loaded state.

[0050] Specifically, the injection mechanism 100 further includes a controller, which can be electrically connected to the injection driver and the first detection structure 4. The controller can obtain the working status of the injection rod 2 in real time and control the operation of the injection driver according to the working status of the injection rod 2, so that the operation of the injection rod is more stable. In addition, the controller can also be electrically connected to a remote component (such as a computer, mobile phone, or display device), so that the working status of the injection rod 2 can be checked in a timely manner through the remote component, providing a more intuitive understanding of the working status of the injection mechanism 100.

[0051] Furthermore, if Figure 2 As shown in , the transmission component includes a mounting cover 31 and a transmission rod 32. The mounting cover 31 is provided on the rear side of the push rod 2. The mounting cover 31 is roughly groove-shaped, and the groove of the mounting cover 31 is provided facing away from the push rod 2. The mounting cover 31 can be fixed in the steam generating device of the ablation treatment equipment; one end of the transmission rod 32 is connected to the mounting cover 31, and the other end is provided with a clamping portion. The transmission rod 32 is roughly cylindrical and is arranged parallel to and spaced apart from the push rod 2. The clamping portion is clamped on the syringe 1 and can move relative to the syringe 1 to form a connection guide for the push rod 2 when it moves, so that the movement of the push rod 2 is more stable. Combined with Figure 2 and Figure 3 As shown, the first detection structure 4 is provided on the mounting cover 31. When the push rod 2 is in the push state, the rear end of the push rod 2 abuts against the first detection structure 4, placing the first detection structure 4 in the first working state. The injection driver is connected to the transmission rod 32. The injection driver drives the transmission rod 32 to move in the front-to-back direction, thereby driving the mounting cover 31 and the first detection structure 4 to move in the front-to-back direction, thereby driving the push rod 2 to move.

[0052] In which, the push rod 2 and the mounting cover 31 can be connected by a connecting clamp, and the push rod 2 can move between the first position and the second position relative to the mounting cover 31 under the action of the connecting clamp, so as to better distinguish whether the push rod 2 is in a loading state.

[0053] It can be understood that the installation cover 31 and the transmission rod 32 can be two separate components, respectively, so as to be detachably connected to facilitate maintenance of the installation cover 31 and the transmission rod 32 .

[0054] Preferably, the mounting cover 31 and the transmission rod 32 are integrally formed so as to prevent relative shaking between the mounting cover 31 and the transmission rod 32 , thereby making the injection rod 2 more stable when moving and thus ensuring more stable energy transmission.

[0055] Furthermore, the injection driver includes a drive motor, a screw connected to the drive motor, and a nut threadedly connected to the screw. The screw extends axially along the syringe barrel 1, and the nut is connected to the transmission rod 32. The drive motor drives the screw to rotate, driving the nut to move along the screw, which in turn moves the transmission rod 32, causing the mounting cover 31 to move, and thus driving the injection rod 2 to move. The screw-nut structure makes the injection rod 2 more stable during movement.

[0056] For the first detection structure 4, preferably, combined with Figure 2 and Figure 4 As shown, the first detection structure 4 includes a detection rod 41, a first abutting protrusion 42, a detection piece 44 and a first sensor 45, the detection rod 41 is rotatably arranged on the side of the mounting cover 31 facing away from the injection rod 2; a through hole is provided on the mounting cover 31, the first abutting protrusion 42 is protruding and arranged on the side of the detection rod 41 facing the injection rod 2, and at least part of it can be extended from the through hole; the detection piece 44 is provided on the detection rod 41; the first sensor 45 is provided on the mounting cover 31 and is provided with a detection area; wherein, when the injection rod 2 is in the injection state, the injection rod 2 abuts against the first abutting protrusion 42 to drive the detection rod 41 to rotate, so that the detection piece 44 is located outside the detection area and the first sensor 45 is in the first working state. That is, in the push injection state, the detection piece 44 is located outside the detection area, so that the first sensor 45 can send a first detection signal to the controller to indicate that the syringe 1 and the push rod 2 are in the correct loading state and can push the liquid normally.

[0057] Among them, the detection rod 41 is arranged in a long strip shape, and one end of the detection rod 41 along its length direction is rotatably arranged on the mounting cover 31, and the first abutment protrusion 42 is arranged in the middle of the detection rod 41 and is arranged toward the through hole. When the push rod 2 does not abut the first abutment protrusion 42, the first abutment protrusion 42 can extend out of the through hole, and the detection piece 44 is located in the detection area. The first sensor 45 can send a second detection signal to the controller to indicate that the push rod 2 is not in a loading state.

[0058] Further, combined with Figure 3 and Figure 5 As shown, the first detection structure 4 also includes an elastic reset member 47, and the two ends of the elastic reset member 47 are connected to the detection rod 41 and the mounting cover 31, so that when the push rod 2 is in the pulling state, the elastic reset member 47 can provide an elastic reset force to the detection rod 41, drive the detection rod 41 to rotate, so that the detection piece 44 can be located in the detection area, the first sensor 45 can enter the second working state, the detection rod 41 can be automatically reset, and the detection is more intelligent. The elastic reset member 47 can be set as a telescopic spring. Specifically, a mounting plate is also protruding on the side wall of the mounting cover 31, and the mounting plate is located on the side of the detection rod 41 facing away from the push rod 2. The two ends of the telescopic spring are respectively abutted against the detection rod 41 and the mounting plate, and the telescopic spring is arranged near the rotation point of the detection rod 41 to achieve a better reset effect.

[0059] Moreover, the first detection structure 4 further includes a second sensor 46 and a second abutting protrusion 43 provided on the side of the detection rod 41 facing away from the first abutting protrusion 42, the second sensor 46 and the second abutting protrusion 43 being arranged at a relative interval; when the push rod 2 is in the push state, the second abutting protrusion 43 abuts against the second sensor 46, thereby further indicating that the push rod 2 and the syringe 1 are in the loading state; when the push rod 2 is in the pulling state, the second abutting protrusion 43 is separated from the second sensor 46, thereby indicating that the push rod 2 and the syringe 1 are not in the loading state. Moreover, the second sensor 46 can be set as a pressure sensor, through which the push pressure of the push rod 2 can be monitored in real time, thereby better ensuring the liquid pushing effect.

[0060] According to the detection structure of the first sensor 45 and the second sensor 46, the controller can control the operation of the injection driver in real time, thereby controlling the moving speed of the injection rod 2 and automatically injecting the fluid, and can provide closed-loop feedback and precise control to ensure stable energy conduction, no thermal damage, and no tissue coking.

[0061] The clamping portion includes an elastic clamp 33, which forms a clamping area. The inner diameter of the clamping area of the elastic clamp 33 is adjustable, so that the elastic clamp 33 can be applied to syringes 1 of different diameters, making the injection mechanism 100 more adaptable.

[0062] Moreover, the injection mechanism 100 also includes a third sensor (not shown in the accompanying drawings). The third sensor is provided on the elastic clamp 33 and can be used to detect the inner diameter of the clamping area. The model of the syringe 1 can be identified in real time through the third sensor, and the detection signal can be transmitted to the controller. The controller can control the operation of the injection driver according to the detected model of the syringe 1 to match the pushing rate compatible with the syringe 1, thereby ensuring accurate energy action and improving the treatment effect.

[0063] The present invention also provides an ablation therapy device, which includes the above-mentioned injection mechanism 100. Through the injection mechanism 100, the fluid is automatically injected, and closed-loop feedback and precise control can be performed to ensure stable energy conduction, no thermal damage, and no tissue coking, so that the treatment effect of the ablation therapy device is better.

[0064] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. An injection mechanism, characterized in that: include: The syringe is hollow and has an injection head at the front end; An injection rod is movably sleeved in the injection barrel from the rear end of the injection barrel, and has a forward injection state and a backward pulling state; an injection drive structure connected to the push rod, for driving the push rod to move along the axial direction of the syringe to switch between the push state and the withdrawal state; The first detection structure is provided on the injection drive structure. When the push rod is in the pushing state, the first detection structure is in a first working state. When the push rod is in the pulling state, the first detection structure is in a second working state.

2. The injection mechanism according to claim 1, wherein: The injection drive structure includes: injection driver; a transmission component, connecting the injection driver and the injection rod, wherein the first detection structure is provided on the transmission component; The push rod has a first position and a second position movable relative to the transmission component. When the push rod is in the push state, the push rod is in the first position and abuts against the first detection structure, so that the first detection structure is in a first working state. When the injection rod is in the pulled state, the injection rod is at the second position and is separated from the first detection structure, so that the first detection structure is in the second working state.

3. The injection mechanism according to claim 2, wherein: The transmission components include: A mounting cover is provided on the rear side of the injection rod; A transmission rod, one end of which is connected to the mounting cover, and the other end of which is provided with a clamping portion, wherein the clamping portion is clamped on the syringe and can move relative to the syringe, and the injection driver is connected to the transmission rod; The first detection structure is provided on the mounting cover. When the injection rod is in the injection state, the rear end of the injection rod abuts against the first detection structure, and the first detection structure is in the first working state.

4. The injection mechanism according to claim 3, wherein: The mounting cover and the transmission rod are integrally arranged.

5. The injection mechanism according to claim 3, wherein: The mounting cover is provided with a through hole; the first detection structure includes: A detection rod is rotatably arranged on a side of the mounting cover facing away from the injection rod; a first abutting protrusion, protruding from a side of the detection rod facing the injection rod and at least partially extending from the through hole; A detection piece, provided on the detection rod; A first sensor is provided on the mounting cover and has a detection area; When the push rod is in the push state, the push rod abuts against the first abutting protrusion to drive the detection rod to rotate, so that the detection piece is located outside the detection area and the first sensor is in the first working state.

6. The injection mechanism according to claim 5, wherein: The first detection structure also includes an elastic reset member, both ends of which are connected to the detection rod and the mounting cover, so that when the injection rod is in the pulled state, the elastic reset member can provide an elastic reset force to the detection rod, driving the detection rod to rotate, so that the detection piece can be located in the detection area and the first sensor can enter the second working state.

7. The injection mechanism according to claim 5, wherein: The first detection structure further includes a second sensor and a second abutting protrusion provided on a side of the detection rod facing away from the first abutting protrusion, wherein the second sensor and the second abutting protrusion are provided with a relative spacing; When the push rod is in the push state, the second abutting protrusion abuts against the second sensor; when the push rod is in the pulled state, the second abutting protrusion is separated from the second sensor.

8. The injection mechanism according to claim 3, wherein: The clamping portion includes an elastic clamp, the elastic clamp is formed with a clamping area, and the inner diameter of the clamping area of the elastic clamp is adjustable.

9. The injection mechanism according to claim 8, wherein: The injection mechanism further includes a third sensor, which is disposed on the elastic clamp and can be used to detect the inner diameter of the clamping area.

10. An ablation device, characterized in that: Comprising the injection mechanism according to any one of claims 1 to 9.

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