Ablation device
By designing an ablation device with multiple slidable ablation needles and an operating mechanism, the problem of inflexible operation of existing devices is solved, single-pole or multi-pole independent ablation is achieved, side effects are reduced, and treatment effects are improved.
Patent Information
- Application Number
- CN202421524592.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Existing ablation devices are inflexible to operate and cannot achieve unipolar or multipolar independent ablation treatment. They also have side effects such as urethral damage and severe postoperative pain.
An ablation device was designed, comprising multiple sliding ablation needles and an operating mechanism. The insertion and retraction of the ablation needles are independently controlled by the operating mechanism to achieve unipolar or multipolar independent ablation treatment.
It improves the ease of operation and flexibility of the ablation device, enabling independent control of the insertion and withdrawal of each ablation needle, reducing side effects and improving treatment efficacy.
Smart Images
Figure CN223464097U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical devices, and more particularly to an ablation device. BACKGROUND
[0002] With the aggravation of the population aging trend and the change of people's lifestyle, prostate diseases, especially prostate hyperplasia and prostate cancer, the incidence of prostate hyperplasia increases with age. As the age gradually increases, the prostate also grows, which has become an important problem affecting men's health. Traditional treatment methods such as drug therapy, surgical treatment, etc. can alleviate the disease to some extent, but have problems such as large side effects, high recurrence rate, slow postoperative recovery, etc.
[0003] In the existing minimally invasive treatment method of the prostate, there are mainly microwave ablation treatment, radiofrequency ablation treatment, cryoablation treatment, and thermal steam ablation treatment. However, the above treatment methods also have certain side effects, such as urethral injury, urethral stricture, and strong postoperative pain. Overall, the ablation devices in the prior art for treating the prostate or other organs are not flexible in operation, have limited ablation forms that can be supported, and cannot achieve single-pole or multi-pole independent ablation treatment. CONTENT OF THE UTILITY MODEL
[0004] Therefore, the present application provides an ablation device to solve the technical problems of the ablation device in the prior art that is not flexible in operation and cannot achieve single-pole or multi-pole independent ablation treatment.
[0005] The present application provides an ablation device, which comprises:
[0006] a catheter;
[0007] a plurality of ablation needles, which are slidably arranged in the catheter;
[0008] an operating mechanism, which comprises an operating support body and a plurality of operating members slidably arranged on the operating support body, each ablation needle is provided with at least one operating member, and each ablation needle is one-to-one connected to a corresponding operating member, and the operating members are independently pushed to slide relative to the operating support body to make the corresponding ablation needles respectively and independently extend out of the distal end of the catheter or retreat into the catheter.
[0009] Wherein, since the ablation device is provided with a plurality of ablation needles, and the operating mechanism comprises a plurality of operating members slidably arranged on the operating support body, each ablation needle is provided with at least one operating member, and each ablation needle is correspondingly connected with the operating member, and the operating member is independently pushed to slide relative to the operating support body to make the corresponding ablation needle independently extend out of the distal end of the catheter (needle insertion) or retreat into the catheter (needle withdrawal), so that the ablation device is extremely convenient to operate the needle insertion and withdrawal of each ablation needle, and can independently operate the needle insertion and withdrawal of each ablation needle, and can be well used for monopolar or multipolar independent ablation treatment.
[0010] Further, the operating support body is a support shell, and the operating member is a sliding button which is arranged on the outside of the support shell and can reciprocatingly and linearly slide.
[0011] Further, the operating support body is a support shell, and the operating member is a sliding button which is arranged on the outside of the support shell and can reciprocatingly and linearly slide.
[0012] Further, the support shell is provided with a first limiting structure, and the sliding button is provided with a second limiting structure, and when the sliding button reciprocatingly and linearly slides on the outside of the support shell, the sliding button can be positioned at a plurality of different positions through the limiting cooperation of the first limiting structure and the second limiting structure, and the sliding button can be driven by external force to release the positioning.
[0013] Further, the support shell is provided with a first limiting structure, and the sliding button is provided with a second limiting structure, and when the sliding button reciprocatingly and linearly slides on the outside of the support shell, the sliding button can be positioned at a plurality of different positions through the limiting cooperation of the first limiting structure and the second limiting structure, and the sliding button can be driven by external force to release the positioning.
[0014] Further, the outside of the support shell is provided with an elongated accommodating groove, and the sliding button is located in the elongated accommodating groove, and the length direction of the elongated accommodating groove is consistent with the reciprocating and linear sliding direction of the sliding button.
[0015] Further, the outside of the support shell is provided with an elongated accommodating groove, and the sliding button is located in the elongated accommodating groove, and the length direction of the elongated accommodating groove is consistent with the reciprocating and linear sliding direction of the sliding button.
[0016] Further, the first limiting structure is a first tooth-shaped part arranged on the wall surface in the width direction of the elongated accommodating groove, and the second limiting structure is a second tooth-shaped part arranged on the side surface of the sliding button.
[0017] Further, the first limiting structure is a first tooth-shaped part arranged on the wall surface in the width direction of the elongated accommodating groove, and the second limiting structure is a second tooth-shaped part arranged on the side surface of the sliding button.
[0018] Further, the operating mechanism further comprises a traction member, which extends into the support shell and is connected to the sliding button and the corresponding ablation needle respectively.
[0019] The traction member is arranged to facilitate the connection between the sliding button outside the support shell and the corresponding ablation needle.
[0020] Further, a guide groove is formed in the support shell, and the ablation needle is limited in the guide groove and can reciprocate linearly along the guide groove.
[0021] The guide groove can effectively limit and guide the reciprocating linear motion of the ablation needle.
[0022] Further, a plurality of ablation needles are uniformly arranged in the catheter along the circumference of the catheter, and a plurality of operating members are uniformly arranged along the circumference of the operating support body.
[0023] The plurality of operating members arranged along the circumference of the operating support body can make the space in the catheter reasonable and compact, thereby improving the space utilization and regularity of the space components.
[0024] Further, an axial through needle channel is formed in the ablation needle, and a liquid injection port is arranged on the operating support body, and the liquid injection port is in communication with the needle channel of each ablation needle respectively.
[0025] The liquid injection port arranged on the operating support body is in communication with the needle channel of each ablation needle respectively, and the liquid injection port is convenient to connect with the syringe in the liquid delivery assembly, so that the needle channel of the second ablation needle can be connected with the syringe through the operating support body, and the connection with the syringe is very convenient.
[0026] Further, the catheter has a plurality of needle outlet cavities extending along the length direction of the catheter, the number of the plurality of needle outlet cavities is at least equal to the number of the plurality of ablation needles, a needle outlet hole is formed in the circumferential side wall of the distal end of the catheter and is in communication with the needle outlet cavities, each ablation needle is arranged in the corresponding needle outlet cavity one by one and can extend out of or retract into the catheter through the needle outlet hole.
[0027] Each ablation needle is arranged in the corresponding needle outlet cavity one by one and can extend out of or retract into the catheter through the needle outlet hole, so that each ablation needle does not interfere with each other in the catheter, and each ablation needle can work independently. BRIEF DESCRIPTION OF DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative effort based on these drawings.
[0029] Figure 1 A perspective view of the ablation device in the prostate ablation system of the present application, wherein the ablation needle is not extended out of the needle lumen;
[0030] Figure 2 A perspective view of the ablation device in the prostate ablation system of the present application, wherein the ablation needle is not extended out of the needle lumen; Figure 1 A zoomed-in view of A in FIG. 1;
[0031] Figure 3 A perspective view of the ablation device in the prostate ablation system of the present application, wherein the ablation needle is not extended out of the needle lumen; Figure 1 A zoomed-in view of B in FIG. 1;
[0032] Figure 4 A cross-sectional view of the catheter in the ablation device in the prostate ablation system of the present application;
[0033] Figure 5 A partial perspective view of the ablation device in the prostate ablation system of the present application, wherein the catheter is omitted;
[0034] Figure 6 A perspective view of the ablation device in the prostate ablation system of the present application, wherein the ablation needle is not extended out of the needle lumen; Figure 5 A zoomed-in view of A in FIG. 1;
[0035] Figure 7 A partial structural schematic view of the ablation device in the prostate ablation system of the present application;
[0036] Figure 8 A perspective view of the ablation device in the prostate ablation system of the present application, wherein the ablation needle is not extended out of the needle lumen;
[0037] Figure 9 A perspective view of the ablation device in the prostate ablation system of the present application, wherein the ablation needle is not extended out of the needle lumen; Figure 8 A zoomed-in view of A in FIG. 1.
[0038] BRIEF DESCRIPTION OF DRAWINGS
[0039] 7-ablation needle; 20-positioning balloon; 100-catheter; 101-needle lumen; 200-operation mechanism; 201-operation support body; 202-long strip-shaped accommodating groove; 203-sliding button; 204-first toothed part; 205-second toothed part; 206-pulling member; 207-guiding groove; 208-liquid injection port; 209-electricity connection line; 210-electricity connection plug; 212-catheter port; 213-detachable joint; 214-gas injection tube port; 300-inclined guide tube. DETAILED DESCRIPTION
[0040] For the purpose of facilitating the understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings. The accompanying drawings show one or more embodiments of the present application in an exemplary manner, so that the technical solutions disclosed by the present application can be understood more accurately and thoroughly. However, it should be understood that the present application can be implemented in various forms, and is not limited to the embodiments described below.
[0041] The same or similar reference numerals in the drawings of the present application correspond to the same or similar components; in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are used only for exemplary illustration, and cannot be understood as a limitation on the present application. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0042] In addition, if the present application has a description of "first", "second" and the like in the embodiments, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes include "A and / or B", which includes A scheme, or B scheme, or A and B scheme.
[0043] It should be noted that the ablation device in the prior art for prostate treatment or other organ treatment is not flexible in operation, and cannot achieve single-pole or multi-pole independent ablation treatment. In the present application, each ablation needle is one-to-one connected to a corresponding operating member, and independently pushes the operating member to slide relative to the operating support main body to make the corresponding ablation needles respectively independently extend out of the distal end of the catheter (needle insertion) or retract into the catheter (needle retraction), so that the ablation device is extremely convenient for operating the needle insertion and needle retraction of each ablation needle, and can independently operate the needle insertion and needle retraction of each ablation needle, and can be well used for single-pole or multi-pole independent ablation treatment.
[0044] Referring to Figure 1 , Figure 8 and Figure 9 , the embodiments of the present application provide an ablation device, which is especially suitable for ablation treatment of the prostate, but can also be used for ablation treatment of any other suitable organ, wherein it comprises:
[0045] a catheter 100;
[0046] The ablation needles 7 are provided in plurality, and the plurality of ablation needles 7 are slidably arranged in the catheter 100;
[0047] The operation mechanism 200 comprises an operation support body 201 and a plurality of operation members slidably arranged on the operation support body 201, each ablation needle 7 is provided with at least one operation member, and each ablation needle 7 is one-to-one connected with a corresponding operation member, and the operation members are independently pushed to slide relative to the operation support body 201 to make the corresponding ablation needles 7 respectively independently extend out of the distal end of the catheter 100 or retreat into the catheter 100.
[0048] The ablation device provided by the embodiment of the present application is provided with a plurality of ablation needles 7, and the operation mechanism 200 comprises a plurality of operation members slidably arranged on the operation support body 201, each ablation needle 7 is provided with at least one operation member, and each ablation needle 7 is one-to-one connected with a corresponding operation member, and the operation members are independently pushed to slide relative to the operation support body 201 to make the corresponding ablation needles 7 respectively independently extend out of the distal end of the catheter 100 (needle insertion) or retreat into the catheter 100 (needle withdrawal), so that the ablation device is extremely convenient to operate the needle insertion and needle withdrawal of each ablation needle 7, and each ablation needle 7 can be independently operated to insert and withdraw the needle, and can be well used for monopolar or multipolar independent ablation treatment.
[0049] Referring to Figure 2 and Figure 4 According to the specific embodiment of the present application, the catheter 100 is provided with a plurality of needle outlet channels 101 extending along the length direction of the catheter, the number of the plurality of needle outlet channels 101 is at least equal to the number of the plurality of ablation needles 7, the circumferential side wall of the distal end of the catheter 100 is provided with a needle outlet hole in communication with the needle outlet channels, and each ablation needle 7 is one-to-one arranged in a corresponding needle outlet channel 101 and can extend out of or retreat into the catheter 100 through the needle outlet hole.
[0050] According to an embodiment of the present application, the operation support body 201 is a support shell, the proximal end of the catheter 100 can be connected to the support shell through a detachable joint 213, and a catheter port 212 and other functional structures can be arranged on the detachable joint 213. The support shell is preferably in the shape of a handle, such as a gun-shaped handle, and the like. The operation member is a sliding button 203, which is arranged on the outside of the support shell in a reciprocating and linear sliding manner. The distal end of the catheter 100 can be connected to a positioning balloon 20, and a gas injection port 214 can be arranged on the detachable joint 213. The gas injection port 214 is connected to the positioning balloon 20 through an airway or air tube of the catheter 100. When the positioning balloon 20 is completely inserted into the bladder, the positioning balloon 20 can be filled by air injection through the gas injection port 214. In this way, on the one hand, the positioning balloon 20 can be clamped at the neck of the prostate, so that the catheter 100 is positioned. On the other hand, when the positioning balloon 20 is clamped at the neck of the prostate, the urethral orifice can be blocked, so that urine does not flow out of the urethra, thereby reducing the influence of urine on treatment.
[0051] Referring to Figure 3 and Figure 7 , according to the preferred embodiment of the present application, the outside of the support shell is provided with an elongated accommodating groove 202, the length direction of the elongated accommodating groove 202 is consistent with the reciprocating and linear sliding direction of the sliding button 203, the sliding button 203 is rigidly connected with the ablation needle 7 and is arranged in the elongated accommodating groove 202 in a reciprocating and linear sliding manner, and the elongated accommodating groove 202 can limit the sliding button 203 and guide the reciprocating and linear sliding of the sliding button 203.
[0052] The support shell is provided with a first limiting structure, and the sliding button 203 is provided with a second limiting structure. When the sliding button 203 reciprocates and linearly slides on the outside of the support shell, the sliding button 203 can be positioned at different positions through the limiting cooperation of the first limiting structure and the second limiting structure, and the sliding button 203 can be driven by an external force to be released from the position.
[0053] As other embodiments, the elongated accommodating groove 202 can not be arranged, and the sliding button 203 is not located in the elongated accommodating groove 202, but is located on the outer surface of the outside of the support shell.
[0054] Referring to Figure 3 and Figure 7According to the specific embodiment of the present application, the first limiting structure is a first tooth-shaped part 204 arranged on the wall surface in the width direction of the long strip-shaped accommodating groove 202, and the second limiting structure is a second tooth-shaped part 205 arranged on the side surface of the sliding button 203. Each tooth groove / tooth protrusion of the first tooth-shaped part 204 and the corresponding tooth protrusion / tooth groove of the second limiting structure can correspond to a different positioning position of the first limiting structure and the second limiting structure when they are matched, but the first limiting structure and the second limiting structure are not limited to the structure form designed as a tooth-shaped part.
[0055] Referring to Figure 3 and Figure 7 According to an embodiment of the present application, the operating mechanism 200 further comprises a traction member 206 which extends into the support shell and is respectively connected to one end of the sliding button 203 and the corresponding ablation needle. The traction member 206 can be a traction rod or a traction column, etc. The traction member 206 can be integrally formed with the sliding button 203 or detachably connected to the sliding button 203.
[0056] Referring to Figure 3 and Figure 7 According to the preferred embodiment of the present application, a guide groove 207 is arranged in the support shell, and the ablation needle is limited in the guide groove 207 and can reciprocatingly and linearly slide along the guide groove 207, so as to well limit and guide the reciprocating and linear sliding movement of the ablation needle. Of course, even if the guide groove 207 is not arranged, the scheme will also fall within the protection scope of the present application.
[0057] According to the specific embodiment of the present application, the plurality of ablation needles 7 are uniformly arranged in the catheter 100 along the circumferential direction of the catheter 100, and the corresponding plurality of operating members are uniformly arranged along the circumferential direction of the operating support body 201, but the present application is not limited to the specific structure arrangement form defined in the embodiment.
[0058] Referring to Figure 1 , Figure 2 , Figure 8 and Figure 9 In addition, the distal end of the ablation needle 7 is used to extend out of the catheter 100 or retreat into the catheter 100, and the distal end of the ablation needle is provided with a scale arranged along the length direction of the ablation needle. The scale can facilitate the control of the depth of the ablation needle.
[0059] Referring to Figure 5 and Figure 6In addition, the ablation device further comprises a plurality of tilt guide tubes 300 corresponding to the needle outlet channels 101 and arranged in the needle outlet channels 101 one by one, and the distal ends of the tilt guide tubes 300 are flush with or located in the tube-in needle outlet channels 101. The tilt guide tubes 300 extend in a direction away from the axis of the catheter 100, and are used to provide a suitable angle guide for the ablation needle during puncture ablation. The main material of the tilt guide tubes 300 is an alloy memory material with corrosion resistance, super elasticity and good plasticity, such as nickel-titanium.
[0060] Referring to Figure 1 , Figure 5 and Figure 8 , according to an embodiment of the present application, the operation support body 201 is provided with a liquid injection port 208, the needle channel of the ablation needle 7 is connected with the liquid delivery assembly through the liquid injection port 208, the catheter 100 further comprises a butt joint and a plurality of injection branch pipes in communication with the liquid injection port 208, the ablation needle 7 is in communication with the liquid injection port 208 through the corresponding injection branch pipes, and the liquid delivery assembly injects liquid into the liquid injection port 208 and reaches the front end of the organ to be treated through the ablation needle 7, so that chemical ablation can be performed.
[0061] Referring to Figure 1 , Figure 5 and Figure 8 , in addition, the operation mechanism 200 further comprises an electric connection line 209 and an electric connection plug 210 connected to a first end of the electric connection line 209, a second end of the electric connection line 209 is connected to the inside of the operation support body 201 and electrically connected with the ablation needle 7, and the electric connection plug 210 can be connected to a control host device of an ablation treatment instrument to perform pulse ablation operation or radio frequency ablation operation and the like.
[0062] The above is only a preferred specific embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any person skilled in the art can easily obtain simple changes or equivalent replacements of the technical solutions within the technical range disclosed in the present application, and all fall within the protection scope of the present application.
Claims
1. An ablation device, characterized by, The utility model relates to a kind of ablation needle and operation mechanism, including: Catheter; Ablation needle, which is provided with a plurality of ablation needles, the plurality of ablation needles is slidably arranged in the catheter; Operating mechanism, including operating support body and a plurality of operating members slidably arranged on the operating support body, each of the ablation needles is configured with at least one operating member, and each of the ablation needles is one-to-one connected with the corresponding operating member, and the operating members are independently pushed to slide relative to the operating support body to make each of the corresponding ablation needles independently extend or retract into the distal end of the catheter.
2. The ablation device of claim 1, wherein, The operating support body is a support shell, and the operating member is a sliding button which is linearly reciprocally arranged outside the support shell.
3. The ablation device of claim 2, wherein, The support shell is provided with a first limiting structure, and the sliding button is provided with a second limiting structure, which can be positioned at different positions by limiting each other through the first limiting structure and the second limiting structure when linearly reciprocally sliding outside the support shell, and the sliding button can be driven by external force to release the positioning.
4. The ablation device of claim 3, wherein, The outer side of the support shell is provided with an elongated receiving groove, and the sliding button is located in the elongated receiving groove, and the length direction of the elongated receiving groove is consistent with the linear reciprocating direction of the sliding button.
5. The ablation device of claim 4, wherein, The first limiting structure is a first tooth-shaped part arranged on the wall surface in the width direction of the elongated receiving groove, and the second limiting structure is a second tooth-shaped part arranged on the side surface of the sliding button.
6. The ablation device of claim 2, wherein, The operating mechanism further includes a traction member which extends into the support shell and is connected to one end of the sliding button and the corresponding ablation needle.
7. The ablation device of claim 6, wherein, A guide groove is formed in the support shell, and the ablation needle is limited in the guide groove and can linearly reciprocally slide along the guide groove.
8. The ablation device of any of claims 1 to 7, wherein, The plurality of ablation needles are uniformly arranged in the catheter along the circumference of the catheter, and the plurality of operating members are uniformly arranged along the circumference of the operating support body.
9. The ablation device of any of claims 1 to 7, wherein, An axial needle channel is formed in the ablation needle, and a liquid injection port is arranged on the operating support body, and the liquid injection port is in communication with the needle channel of each of the plurality of ablation needles.
10. The ablation device of any of claims 1-7, wherein, The catheter has a plurality of needle outlet cavities extending along the length direction of the catheter, the number of the plurality of needle outlet cavities is at least equal to the number of the plurality of ablation needles, and a needle outlet hole is formed in the circumferential side wall of the distal end of the catheter and is in communication with the needle outlet cavity, each of the ablation needles is one-to-one arranged in the corresponding needle outlet cavity and can extend out of or retract into the catheter through the needle outlet hole.