Positioning reference frame for medical devices

Abstract

The utility model provides a kind of positioning reference frame for medical equipment, including positioning component, and locking assembly, wherein:locking assembly includes through inside locking channel, first pressure block component and second pressure block component are embedded in the inside of locking channel, the first driving component of first pressure block component displacement, and the second driving component of second pressure block component displacement, first driving component reciprocatingly moves along first path, and first pressure block component moves between reset position and locking position, second driving component reciprocatingly moves along second path, and second pressure block component moves between reset position and locking position.The utility model controls first driving component and second driving component, so that first pressure tablet component and second pressure tablet component can move in locking channel, and medical equipment with cross section diameter not greater than the diameter of locking channel can be locked on positioning reference frame, to increase the adaptability of positioning reference frame.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a positioning reference frame for medical devices. Background Technology

[0002] Currently, interventional procedures guided by medical imaging are becoming increasingly common. In puncture procedures, a stent is used to guide the puncture instrument into the corresponding target location in the patient's body before procedures such as biopsy, drainage, catheter placement, and drug injection are performed.

[0003] Patent CN217907930U discloses a puncture needle positioning mounting bracket and a puncture needle assembly, mainly including a mounting bracket and a clamping assembly. The mounting bracket has an assembly area extending through its interior, and inside the assembly area is a limiting part for positioning the puncture needle. The front end of the clamping assembly moves from the outside of the mounting bracket to the inside of the assembly area, abutting against the outer wall surface of the puncture needle. The clamping assembly on the positioning mounting bracket facilitates locking and fixing the puncture needle placed in the assembly area. The limiting part inside the assembly area helps to limit the position of the puncture needle within the assembly area. The combination of the limiting part and the clamping assembly further improves the fastening performance of the puncture needle and also fixes the puncture needle in the optimal position within the mounting bracket.

[0004] However, since the dimensions of the assembly area and the limiting part in the above-mentioned positioning mounting bracket are fixed and cannot be adjusted, the applicability of the positioning mounting bracket is reduced. Utility Model Content

[0005] To address the shortcomings mentioned above, this utility model provides a positioning reference frame for medical devices that can increase the adaptability of the positioning reference frame.

[0006] To achieve the above objectives, this utility model provides a positioning reference frame for medical devices, including a positioning component and a locking component connected thereto, wherein:

[0007] The locking assembly includes a through-hole locking channel, a first pressing block assembly and a second pressing block assembly spaced apart and embedded within the locking channel, a first driving assembly that displaces the first pressing block assembly, and a second driving assembly that displaces the second pressing block assembly. When the first driving assembly reciprocates along a first path, the first pressing block assembly moves between a reset position and a locked position. When the second driving assembly reciprocates along a second path, the second pressing block assembly moves between a reset position and a locked position. Wherein:

[0008] In one embodiment, when the first pressure block assembly and the second pressure block assembly are in the reset position, the outer wall surface of the first pressure block assembly and the outer wall surface of the second pressure block assembly form part of the inner wall surface of the locking channel;

[0009] When the first pressure block assembly and the second pressure block assembly are in the locked position, at least a portion of the first pressure block assembly and at least a portion of the second pressure block assembly are inside the locking channel.

[0010] In one embodiment, the locking assembly includes a first drive assembly and a second drive assembly, wherein:

[0011] The first driving component includes a first plate a, a first movable plate a, and a second plate a stacked sequentially from the outside to the inside, wherein:

[0012] The first plate a includes a through first channel a and at least one first pressing block storage position a formed by the inner wall of the first channel a recessed into the outer wall surface of the first plate a;

[0013] The first movable plate a includes a through first channel b, a plurality of first arc-shaped through holes a and a plurality of first arc-shaped through holes b surrounding the outer side of the first channel b, at least one first pressure block storage position b formed after the inner wall of the first channel b is recessed towards the outer wall surface of the first movable plate a, and a plurality of protrusions a are formed on the outer wall surface of the first movable plate a in the circumferential direction.

[0014] The second plate a includes a through first channel c and at least one first pressing block receiving groove formed on the front end face of the second plate a, wherein the first pressing block receiving groove is located adjacent to the first channel c;

[0015] When the first plate a, the first movable plate a, and the second plate a are stacked in sequence, the first channel a, the first channel b, and the first channel c are connected to form a first locking channel. The positions of the first pressure block storage position a, the first pressure block storage position b, and the first pressure block storage groove correspond to each other to form the storage area a of the first pressure block assembly.

[0016] The second drive assembly includes a first plate b, a first movable plate b, and a second plate stacked sequentially from the outside to the inside, wherein:

[0017] The first plate b includes a through second channel a and at least one second pressing block storage position a formed by the inner wall of the second channel a recessed into the outer wall surface of the first plate b;

[0018] The first movable plate b includes a through second channel b, a plurality of second arc-shaped through holes a and a plurality of second arc-shaped through holes b sequentially surrounding the outer side of the second channel b, at least one second pressure block storage position b formed after the inner wall of the second channel b is recessed towards the outer wall surface of the first movable plate b, and a plurality of protrusions b are formed on the outer wall surface of the first movable plate b in the circumferential direction.

[0019] The end of the second plate is connected to the end of the second plate a. The second plate includes a through second channel c and at least one second pressing block receiving groove formed on the front end face of the second plate. The position of the second pressing block receiving groove is adjacent to the second channel c.

[0020] When the first plate b, the first movable plate b, and the second plate are stacked in sequence, the second channel a, the second channel b, and the second channel c are connected to form a second locking channel, and the positions of the second pressure block storage position a, the second pressure block storage position b, and the second pressure block storage groove correspond to each other.

[0021] In one embodiment, when the first plate a, the first movable plate a, and the second plate a are stacked in sequence, the end of the fastener passes through the first insertion hole a and the first arc-shaped through hole b formed on the first plate a in sequence, and is placed in the first threaded groove formed on the second plate a, and the first movable plate a rotates between the first plate a and the second plate a.

[0022] When the first plate b, the first movable plate b, and the second plate are stacked in sequence, the end of the fastener passes through the first insertion hole b and the second arc-shaped through hole b formed on the first plate a in sequence, and is placed in the second threaded groove formed on the second plate. The first movable plate b rotates between the first plate b and the second plate.

[0023] In one embodiment, the first driving component and the second driving component further include a first locking component and a second locking component, respectively, wherein:

[0024] The first locking component includes a locking pin a, an adjustment channel a formed on the second plate a, and a first through hole penetrating the interior of the protrusion a. After the locking pin a passes through the first through hole and the adjustment channel a, it locks the first movable plate a to the current position.

[0025] The second locking component includes a locking pin b, an adjustment channel b formed on the second plate, and a second through hole penetrating the interior of the protrusion b. After the locking pin b passes through the second through hole and the adjustment channel b, it locks the first movable plate b to the current position.

[0026] In one embodiment, the second plate includes a second plate b and an intermediate tube connected together, the second locking channel passes through the interior of the second plate b and the intermediate tube, the second pressure block receiving groove, the second threaded groove and the adjustment channel b are formed on the second plate b, and an abutting area is formed on the outer wall surface of the intermediate tube.

[0027] In one embodiment, the first pressing block assembly includes a plurality of first pressing block portions, a portion of which is disposed inside the first arc-shaped through hole a;

[0028] When the first movable plate a is in the reset position, the first pressing block is placed inside the storage area a;

[0029] When the first movable plate a is in the locked position, at least a portion of the first pressing block is placed in the first locking channel;

[0030] The second pressing block assembly includes a plurality of second pressing block portions, a portion of which is disposed inside the second arc-shaped through hole a;

[0031] When the first movable plate b is in the reset position, the second pressing block is placed inside the storage area b;

[0032] When the first movable plate b is in the locked position, at least a portion of the second pressing block is placed in the second locking channel.

[0033] In one embodiment, the first locking channel and the second locking channel are connected to form the locking channel, and the central axis passes through the first locking channel and the second locking channel in sequence;

[0034] Multiple first pressing blocks are arranged at equal intervals around the central axis of the first locking channel, and multiple second pressing blocks are arranged at equal intervals around the central axis of the second locking channel.

[0035] In one embodiment, the first pressing block portion and the second pressing block portion have the same structure, both including a pressing block and a shaft penetrating the interior of the pressing block. After the shaft passes through the first arc-shaped through hole a and the first arc-shaped through hole b, the pressing block is placed inside the stacked first pressing block storage position a, the first pressing block storage position b and the first pressing block storage groove, as well as inside the stacked second pressing block storage position a, the second pressing block storage position b and the second pressing block storage groove.

[0036] In one embodiment, the positioning assembly includes a positioning bracket fixed to the outside of the locking assembly and a plurality of positioning balls fixed to the positioning bracket, wherein:

[0037] The positioning bracket includes a horizontal bracket and an inclined bracket connected together. An assembly through hole is formed at the end of the inclined bracket. The inclined bracket is sleeved on the outside of the locking assembly by a locking screw.

[0038] Compared with the prior art, the present invention has one of the following advantages:

[0039] By manipulating the first drive assembly and the second drive assembly, the first pressing assembly and the second pressing assembly can move in the locking channel, which can lock medical devices with a cross-sectional diameter not greater than the diameter of the locking channel onto the positioning reference frame, thereby increasing the adaptability of the positioning reference frame.

[0040] By adding the first locking component and the second locking component, the first movable plate a, the first pressing plate assembly, the first movable plate b, and the second pressing plate assembly can be locked in their current positions to improve the locking effect.

[0041] The first pressing block storage position a, the first pressing block storage slot, the second pressing block storage position a and the second pressing block storage slot facilitate the guidance when the first pressing assembly and the second pressing assembly move.

[0042] Because the locking channel has a certain diameter, small drill bits, probes, screwdrivers, electrodes and other needle structures other than medical devices can also be placed in and locked in the locking channel, thereby increasing the applicability of positioning reference frames for medical devices. Attached Figure Description

[0043] Figure 1 This is a perspective view of this embodiment;

[0044] Figure 2 for Figure 1 Enlarged view of section A;

[0045] Figure 3 This is another perspective view of this embodiment;

[0046] Figure 4 for Figure 3 Enlarged view of section B;

[0047] Figure 5 for Figure 1 Exploded view;

[0048] Figure 6 for Figure 3 Exploded view;

[0049] Figure 7 for Figure 3 The main view;

[0050] Figure 8 for Figure 7Sectional view along the middle AA direction;

[0051] Figure 9 for Figure 7 Sectional view along the BB direction;

[0052] Figure 10 for Figure 2 A perspective view of the second pressing block assembly;

[0053] Figure 11 for Figure 5 A three-dimensional view of the second plate a;

[0054] Figure 12 for Figure 6 A three-dimensional view of the second plate.

[0055] The main reference numerals are as follows:

[0056] 1-Positioning component; 100-Positioning ball; 101-Positioning bracket; 1010-Horizontal bracket; 1011-Tilted bracket; 1012-Threaded hole; 1013-Assembly through hole;

[0057] 2- Locking screw;

[0058] 3-Locking assembly; 301-First plate a; 3010-First channel a; 3011-First pressure block storage position a; 302-First movable plate a; 3020-First channel b; 3021-First arc-shaped through hole a; 3022-First arc-shaped through hole b; 3023-Protrusion a; 3024-First through hole; 3025-First pressure block storage position b; 303-Second plate a; 3030-First channel c; 3031-First pressure block storage groove; 3032-First threaded groove; 3033-Adjustment channel a; 3034-Positioning tooth a; 3035-Assembly hole; 304-First pressure block assembly; 305-Locking pin a; 310-First plate b; 3101-Second through hole a; 3102-Second pressure block storage position a; 312-First movable plate b; 3120-Second channel b; 3121-Second arc-shaped through hole a; 3122-Second arc-shaped through hole b; 3123-Protrusion b; 3124-Second through hole; 3125-Second pressure block storage position b; 313-Second plate body; 3130-Second channel c; 3131-Second plate body b; 3132-Second pressure block storage groove; 3133-Second threaded groove; 3134-Adjustment channel b; 3135-Positioning tooth b; 3136-Intermediate tube body; 3137-Assembly groove; 3138-Abutting area; 314-Second pressure block assembly; 315-Locking pin b; 316-Pressure block; 317-Shaft body. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0060] Example 1

[0061] like Figures 1 to 12 As shown, this embodiment provides a positioning reference frame for medical devices, including a positioning component 1 and a locking component 3 connected thereto, wherein:

[0062] The locking assembly 3 includes a locking channel extending through its interior, a first pressing block assembly 304 and a second pressing block assembly 314 spaced apart and embedded within the locking channel, a first driving assembly that displaces the first pressing block assembly 304, and a second driving assembly that displaces the second pressing block assembly 314. When the first driving assembly reciprocates along a first path, the first pressing block assembly 304 moves between a reset position and a locked position. When the second driving assembly reciprocates along a second path, the second pressing block assembly 314 moves between a reset position and a locked position.

[0063] When the first pressing block assembly 304 and the second pressing block assembly 314 are in the reset position, the outer wall surface of the first pressing block assembly 304 and the outer wall surface of the second pressing block assembly 314 form part of the inner wall surface of the locking channel;

[0064] When the first pressing block assembly 304 and the second pressing block assembly 314 are in the locked position, at least a portion of the first pressing block assembly 304 and at least a portion of the second pressing block assembly 314 are inside the locking channel.

[0065] In this embodiment, specifically, the positioning component 1 includes a positioning bracket 101 and a plurality of positioning balls 100 fixed on the positioning bracket 101. The positioning bracket 101 includes a horizontal bracket 1010 and an inclined bracket 1011 connected together. The positioning balls 100 are mounted on the top end face of the horizontal bracket 1010. A mounting through hole 1013 is formed at the end of the inclined bracket 1011. Threaded holes 1012 are formed on both side walls of the inclined bracket 1011, and each threaded hole 1012 communicates with the mounting through hole 1013. When the mounting through hole 1013 is fitted onto the outside of the locking component 3, the inclined bracket 1011 is fixed to the outside of the locking component 3 by the cooperating locking screw 2 and the threaded hole 1012.

[0066] For example, there are four positioning balls 100, and the horizontal bracket 1010 includes four mounting positions, with a positioning ball 100 fixed at each mounting position.

[0067] In this embodiment, the locking component 3 specifically includes a first driving component and a second driving component connected to each other.

[0068] Furthermore, the first drive assembly includes a first plate a301, a first movable plate a302, and a second plate a303 stacked sequentially from the outside to the inside, wherein:

[0069] The first plate a301 includes a first channel a3010 passing through its center, four first insertion holes a surrounding the outer side of the first channel a3010, and four first pressure block storage positions a3011 formed by the inner wall of the first channel a3010 being recessed towards the outer wall of the first plate a301.

[0070] Among them, four first pressing block storage positions a3011 are equally spaced on the inner wall surface of the first channel a3010, and each first pressing block storage position a3011 is a narrow strip structure.

[0071] The first movable plate a302 includes a first channel b3020 penetrating its center, four first arc-shaped through holes a3021 and four first arc-shaped through holes b3022 surrounding the outer side of the first channel b3020, four first pressure block storage positions b3025 formed by the inner wall of the first channel b3020 being recessed towards the outer wall of the first movable plate a302, and eight protrusions a3023 formed along the circumferential direction on the outer wall of the first movable plate a302.

[0072] The length of the first arc-shaped through hole b3022 is greater than the length of the first arc-shaped through hole a3021.

[0073] The second plate a303 includes a first channel c3030 penetrating its center, four first threaded grooves 3032 surrounding the outer side of the first channel c3030, and four first pressure block receiving grooves 3031 formed on the front end face of the second plate a303, each of the first pressure block receiving grooves 3031 being adjacent to the first channel c3030. A plurality of mounting holes 3035 are also formed on the rear end face of the second plate a303 surrounding the outer side of the first channel c3030.

[0074] Among them, four first pressing block storage slots 3031 are equally spaced on the front end surface of the second plate a303, and the shape of each first pressing block storage slot 3031 is roughly a strip structure.

[0075] Since the centers of the first channels a3010, b3020, and c3030 are on the same axis, when the first plate a301, the first movable plate a302, and the second plate a303 are stacked sequentially, the first channels a3010, b302, and c3030 are connected to form the first locking channel. The positions of the first pressing block storage positions a3011 and b3025 correspond to the positions of the first pressing block storage groove 3031, forming a storage area a for storing the first pressing block assembly 304.

[0076] When the first plate a301, the first movable plate a302, and the second plate a303 are stacked in sequence, the end of the fastener passes through the first insertion hole a and the first arc-shaped through hole b3022 formed on the first plate a301 in sequence, and is placed in the first threaded groove 3032 formed on the second plate a303. This allows the first movable plate a302 to rotate clockwise or counterclockwise between the first plate a301 and the second plate a303 along the trajectory of the first arc-shaped through hole b3022, and at the same time, it drives the first pressure block assembly 304 to switch between the reset position and the locking position.

[0077] Furthermore, the first driving assembly also includes a first locking assembly, which includes a locking pin a305, an adjustment channel a3033 formed on the second plate a303, and a first through hole 3024 penetrating the interior of each protrusion a3023. After the locking pin a305 penetrates the first through hole 3024 and the adjustment channel a3033, it locks the first movable plate a302 to the current position.

[0078] Furthermore, the adjustment channel a3033 is an arc-shaped channel with several positioning teeth a3034 distributed on its inner wall surface. A positioning groove a is formed between two adjacent positioning teeth a3034, and a tooth a that mates with the positioning groove a is formed on the outer wall surface of the locking pin a305. When it is necessary to lock the position of the first movable plate a302, the end of the locking pin a305 passes through the first through hole 3024 and is placed in the corresponding positioning groove a, thereby locking the first movable plate a302 to the current position. When the position of the first movable plate a302 is locked, the first pressing block assembly 304 is also locked to the required position (for example, when the first pressing block assembly 304 is in the reset position, that is, when the first pressing block assembly 304 is placed in the first pressing block storage position a3011, the first pressing block storage position b3025 and the first pressing block storage groove 3031, or when the first pressing block assembly 304 is in the locked position, that is, when a part of the first pressing block assembly 304 is placed in the first locking channel).

[0079] Furthermore, the second drive assembly includes a first plate b310, a first movable plate b312, and a second plate 313 stacked sequentially from the outside to the inside, wherein:

[0080] The second plate a303 includes a second channel a3101 passing through its center, four second insertion holes a surrounding the outer side of the second channel a3101, and four second pressure block storage positions a3102 formed by the inner wall of the second channel a3101 being recessed into the outer wall of the second plate a303.

[0081] Among them, four second pressing block storage positions a3102 are equally spaced on the inner wall surface of the second channel a3101, and each second pressing block storage position a3102 is a long and narrow strip structure.

[0082] The first movable plate b312 includes a second channel b3120 penetrating its center, four second arc-shaped through holes a3121 and four second arc-shaped through holes b3122 surrounding the outer side of the second channel b3120, four first pressure block storage positions b3025 formed by the inner wall of the second channel b3120 being recessed towards the outer wall of the first movable plate b312, and eight protrusions b3123 formed along the circumferential direction on the outer wall of the first movable plate b312.

[0083] The length of the second arc-shaped through hole b3122 is greater than the length of the second arc-shaped through hole a3121, and each protrusion b3123 includes a second through hole 3124 that penetrates its interior.

[0084] The end of the second plate 313 is connected to the end of the second plate a303. The second plate 313 includes a second channel c3130 passing through its center and four second pressing block receiving grooves 3132 formed on the front end face of the second plate 313. The four second pressing block receiving grooves 3132 are evenly spaced around the outside of the second channel c3130 in the circumferential direction, and the positions of the four second pressing block receiving grooves 3132 are adjacent to the second channel c3130.

[0085] Among them, four second pressing block storage slots 3132 are equally spaced on the front end surface of the second plate 313, and the shape of each second pressing block storage slot 3132 is roughly strip-shaped.

[0086] Since the centers of the second channels a3101, b3120, and c3130 are on the same axis, when the first plate b310, the first movable plate b312, and the second plate 313 are stacked sequentially, the second channels a3101, b3120, and c3130 are connected, forming a second locking channel. The positions of the second pressing block storage positions a3102 and b3125 correspond to the positions of the second pressing block storage groove 3132, forming a storage area for storing the second pressing block assembly 314.

[0087] When the first plate b310, the first movable plate b312, and the second plate 313 are stacked in sequence, the end of the fastener passes through the first insertion hole b and the second arc-shaped through hole b3122 formed on the first plate b310 in sequence, and is placed in the second threaded groove 3133 formed on the second plate 313. This allows the first movable plate b312 to rotate clockwise or counterclockwise between the first plate b310 and the second plate 313 along the trajectory of the second arc-shaped through hole b3122, and at the same time drives the second pressure block assembly 314 to switch between the reset position and the locking position.

[0088] Furthermore, the second drive assembly also includes a second locking assembly including a locking pin b315, an adjustment channel b3134 formed on the second plate b3131, and a second through hole 3124 penetrating the interior of each protrusion b3123. After the locking pin b315 penetrates the second through hole 3124 and the adjustment channel b3134, it locks the first movable plate b312 to the current position.

[0089] Furthermore, the adjustment channel b3134 is an arc-shaped channel with several positioning teeth b3135 distributed on its inner wall surface. A positioning groove b is formed between two adjacent positioning teeth b3135, and a tooth b that mates with the positioning groove b is formed on the outer wall surface of the locking pin b315. When it is necessary to lock the position of the first movable plate b312, the end of the locking pin b315 passes through the second through hole 3124 and is placed in the corresponding positioning groove b, thereby locking the first movable plate b312 to the current position. When the position of the first movable plate b312 is locked, the second pressing block assembly 314 is also locked to the required position (for example, the second pressing block assembly 314 is in the reset position, that is, the second pressing block assembly 314 is placed in the first pressing block storage position b3025, the first pressing block storage position b3025 and the second pressing block storage groove 3132, or the second pressing block assembly 314 is in the locked position, that is, a part of the second pressing block assembly 314 is placed in the second locking channel).

[0090] Furthermore, the second plate 313 includes a second plate b3131 and an intermediate tube 3136 connected to each other. A second locking channel passes through the interior of the second plate b3131 and the intermediate tube 3136. A second pressure block receiving groove 3132, a second threaded groove 3133, and an adjustment channel b3134 are formed on the second plate b3131. An abutment area 3138 is formed on the outer wall surface of the intermediate tube 3136, and a plurality of assembly grooves 3137 surrounding the second channel c3130 are formed on the rear end face of the intermediate tube 3136.

[0091] Furthermore, the second channel c3130 penetrates the center of the second plate b3131, and four second pressure block receiving grooves 3132 are formed on the front end face of the second plate a303. The positions of each second pressure block receiving groove 3132 are adjacent to the second channel c3130, and the four second pressure block receiving grooves 3132 and the four second threaded grooves 3133 are all equally spaced around the outside of the second channel c3130.

[0092] Furthermore, when the positioning bracket 101 is fitted onto the outside of the intermediate tube 3136 through the mounting through hole 1013, the positions of the two threaded holes 1012 correspond to the positions of the contact area 3138. After the end of the locking screw 2 passes through the threaded hole 1012, it contacts the contact area 3138, thereby fitting and fastening the positioning bracket 101 onto the outside of the locking assembly 3.

[0093] In this embodiment, when the second plate a303 is located at the end of the intermediate tube 3136, the positions of the assembly hole 3035 and the assembly groove 3137 correspond. The screw passes through the assembly hole 3035 and is placed inside the assembly groove 3137, thereby completing the assembly of the second plate a303 and the second plate 313. At this time, the first locking channel and the second locking channel are connected to form a locking channel, and the central axis passes through the first locking channel and the second locking channel in sequence.

[0094] In this embodiment, specifically, the first pressing block assembly 304 includes four first pressing block portions, which are arranged at equal intervals around the central axis of the first locking channel, and a portion of each first pressing block portion is placed inside the first arc-shaped through hole a3021. When the first movable plate a302 is in the reset position, the first pressing block portions are placed inside the first pressing block receiving position a3011, the first pressing block receiving position b3025, and the first pressing block receiving groove 3031. When the first movable plate a302 is in the locked position, at least a portion of the first pressing block portions is placed in the first locking channel, and another portion is placed inside the first pressing block receiving position a3011, the first pressing block receiving position b3025, and the first pressing block receiving groove 3031.

[0095] The second pressing block assembly 314 includes four second pressing block portions, which are arranged at equal intervals around the central axis of the second locking channel, with a portion of each second pressing block portion located inside the second arc-shaped through hole a3121. When the first movable plate b312 is in the reset position, the second pressing block portions are located inside the second pressing block receiving position a3102, the second pressing block receiving position b3125, and the second pressing block receiving groove 3132. When the first movable plate b312 is in the locked position, at least a portion of the second pressing block portions is located in the second locking channel, and the other portion is located inside the second pressing block receiving position a3102, the second pressing block receiving position b3125, and the second pressing block receiving groove 3132.

[0096] Furthermore, the first pressing block and the second pressing block have the same structure, both including a pressing block 316 and a shaft 317 penetrating the interior of the pressing block 316. After the shaft 317 passes through the first arc-shaped through hole a3021 and the first arc-shaped through hole b3022, the pressing block 316 is placed inside the stacked first pressing block storage position a3011, the first pressing block storage position b3025 and the first pressing block storage groove 3031, as well as inside the stacked second pressing block storage position a3102, the second pressing block storage position b3125 and the second pressing block storage groove 3132.

[0097] A concave region is formed on the outer wall surface of the pressure block 316. After the shaft 317 penetrates the interior of the pressure block 316, a part of the shaft 317 is placed in the concave region and exposed to the outside of the pressure block 316.

[0098] When the pressure block 316 is assembled with the first movable plate a302 and the first movable plate b312, the edges of the first arc-shaped through hole a3021 and the first arc-shaped through hole b3022 are placed in the concave area. When the axis passes through the first arc-shaped through hole a3021 and the first arc-shaped through hole b3022, the part of the axis located in the concave area blocks the first arc-shaped through hole a3021 and the first arc-shaped through hole b3022, thereby completing the assembly of the pressure block 316 with the first arc-shaped through hole a3021 and the first arc-shaped through hole b3022, so that the pressure block 316 can move inside the first arc-shaped through hole a3021 and the first arc-shaped through hole b3022 along the trajectory of the first arc-shaped through hole a3021 and the first arc-shaped through hole b3022.

[0099] Furthermore, a concave area is formed on the outer wall surface of each pressure block 316.

[0100] Optionally, the shape of the recessed area is the same as the shape of the outer wall of the instrument to be clamped in the locking channel.

[0101] For example, when the outer wall of the instrument to be clamped in the locking channel is a convex arc surface, the concave area is an arc structure, and the pressure block 316 is in close contact with the instrument.

[0102] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A positioning reference frame for medical instruments, characterized by, Includes a positioning component and a locking component connected thereto, wherein: The locking assembly includes a locking channel that extends through the interior, a first pressing block assembly and a second pressing block assembly that are spaced apart and embedded inside the locking channel, a first driving assembly that drives the first pressing block assembly to move, and a second driving assembly that drives the second pressing block assembly to move. When the first driving assembly reciprocates along a first path, the first pressing block assembly moves between a reset position and a locking position. When the second driving assembly reciprocates along a second path, the second pressing block assembly moves between a reset position and a locking position.

2. The positioning reference frame for medical devices of claim 1, wherein, When the first pressure block assembly and the second pressure block assembly are in the reset position, the outer wall surface of the first pressure block assembly and the outer wall surface of the second pressure block assembly form part of the inner wall surface of the locking channel; When the first pressure block assembly and the second pressure block assembly are in the locked position, at least a portion of the first pressure block assembly and at least a portion of the second pressure block assembly are inside the locking channel.

3. The positioning reference frame for medical devices of claim 2, wherein, The locking assembly includes a first drive assembly and a second drive assembly, wherein: The first driving component includes a first plate a, a first movable plate a, and a second plate a stacked sequentially from the outside to the inside, wherein: The first plate a includes a through first channel a and at least one first pressing block storage position a formed by the inner wall of the first channel a recessed into the outer wall surface of the first plate a; The first movable plate a includes a through first channel b, a plurality of first arc-shaped through holes a and a plurality of first arc-shaped through holes b surrounding the outer side of the first channel b, at least one first pressure block storage position b formed after the inner wall of the first channel b is recessed towards the outer wall surface of the first movable plate a, and a plurality of protrusions a are formed on the outer wall surface of the first movable plate a in the circumferential direction. The second plate a includes a through first channel c and at least one first pressing block receiving groove formed on the front end face of the second plate a, wherein the first pressing block receiving groove is located adjacent to the first channel c; When the first plate a, the first movable plate a, and the second plate a are stacked in sequence, the first channel a, the first channel b, and the first channel c are connected to form a first locking channel. The positions of the first pressure block storage position a, the first pressure block storage position b, and the first pressure block storage groove correspond to each other to form the storage area a of the first pressure block assembly. The second drive assembly includes a first plate b, a first movable plate b, and a second plate stacked sequentially from the outside to the inside, wherein: The first plate b includes a through second channel a and at least one second pressing block storage position a formed by the inner wall of the second channel a recessed into the outer wall surface of the first plate b; The first movable plate b includes a through second channel b, a plurality of second arc-shaped through holes a and a plurality of second arc-shaped through holes b sequentially surrounding the outer side of the second channel b, at least one second pressure block storage position b formed after the inner wall of the second channel b is recessed towards the outer wall surface of the first movable plate b, and a plurality of protrusions b are formed on the outer wall surface of the first movable plate b in the circumferential direction. The end of the second plate is connected to the end of the second plate a. The second plate includes a through second channel c and at least one second pressing block receiving groove formed on the front end face of the second plate. The position of the second pressing block receiving groove is adjacent to the second channel c. When the first plate b, the first movable plate b, and the second plate are stacked in sequence, the second channel a, the second channel b, and the second channel c are connected to form a second locking channel. The positions of the second pressure block storage position a and the second pressure block storage position b correspond to the positions of the second pressure block storage groove, forming the storage area b of the second pressure block assembly.

4. The positioning reference frame for medical devices of claim 3, wherein, When the first plate a, the first movable plate a, and the second plate a are stacked in sequence, the end of the fastener passes through the first insertion hole a and the first arc-shaped through hole b formed on the first plate a in sequence, and is placed in the first threaded groove formed on the second plate a. The first movable plate a rotates between the first plate a and the second plate a. When the first plate b, the first movable plate b, and the second plate are stacked in sequence, the end of the fastener passes through the first insertion hole b and the second arc-shaped through hole b formed on the first plate a in sequence, and is placed in the second threaded groove formed on the second plate. The first movable plate b rotates between the first plate b and the second plate.

5. The positioning reference frame for medical devices of claim 4, wherein, The first driving component and the second driving component further include a first locking component and a second locking component, respectively, wherein: The first locking component includes a locking pin a, an adjustment channel a formed on the second plate a, and a first through hole penetrating the interior of the protrusion a. After the locking pin a passes through the first through hole and the adjustment channel a, it locks the first movable plate a to the current position. The second locking component includes a locking pin b, an adjustment channel b formed on the second plate, and a second through hole penetrating the interior of the protrusion b. After the locking pin b passes through the second through hole and the adjustment channel b, it locks the first movable plate b to the current position.

6. The positioning reference frame for medical devices of claim 5, wherein, The second plate includes a second plate b and an intermediate tube connected together. The second locking channel passes through the interior of the second plate b and the intermediate tube. The second pressure block receiving groove, the second threaded groove and the adjustment channel b are formed on the second plate b. An abutting area is formed on the outer wall surface of the intermediate tube.

7. The positioning reference frame for medical devices of claim 6, wherein, The first pressing block assembly includes a plurality of first pressing block portions, a portion of which is disposed inside the first arc-shaped through hole a; When the first movable plate a is in the reset position, the first pressing block is placed inside the storage area a; When the first movable plate a is in the locked position, at least a portion of the first pressing block is placed in the first locking channel; The second pressing block assembly includes a plurality of second pressing block portions, a portion of which is disposed inside the second arc-shaped through hole a; When the first movable plate b is in the reset position, the second pressing block is placed inside the storage area b; When the first movable plate b is in the locked position, at least a portion of the second pressing block is placed in the second locking channel.

8. The positioning reference frame for medical devices of claim 7, wherein, The first locking channel and the second locking channel are connected to form the locking channel, and the central axis passes through the first locking channel and the second locking channel in sequence; Multiple first pressing blocks are arranged at equal intervals around the central axis of the first locking channel, and multiple second pressing blocks are arranged at equal intervals around the central axis of the second locking channel.

9. The positioning reference frame for medical devices of claim 8, wherein, The first pressing block part and the second pressing block part have the same structure, both including a pressing block and a shaft that penetrates the interior of the pressing block. After the shaft passes through the first arc-shaped through hole a and the first arc-shaped through hole b, the pressing block is placed inside the stacked first pressing block storage position a, the first pressing block storage position b and the first pressing block storage groove, as well as inside the stacked second pressing block storage position a, the second pressing block storage position b and the second pressing block storage groove.

10. The positioning reference frame for medical devices according to any one of claims 1 to 9, characterized in that, The positioning assembly includes a positioning bracket fixed to the outside of the locking assembly, and a plurality of positioning balls fixed to the positioning bracket, wherein: The positioning bracket includes a horizontal bracket and an inclined bracket connected together. An assembly through hole is formed at the end of the inclined bracket. The inclined bracket is sleeved on the outside of the locking assembly by a locking screw.

Images