Quick coupling device for the tip of a bone drill
The design of the quick-connect device at the front end of the bone drill solves the problems of inconvenient operation and difficult debris handling in traditional connection methods, achieving quick connection and effective debris collection, thus improving work efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING GEXIN MEDICAL TECH CO LTD
- Filing Date
- 2025-03-11
- Publication Date
- 2026-07-31
AI Technical Summary
The traditional method of connecting bone drills and drill bits is inconvenient to operate, affects work efficiency, and makes it difficult to handle debris during drilling, which is prone to splashing and polluting the environment.
A quick-connect device for the front end of a bone drill was designed. It adopts a split first half and second half, combined with a locking mechanism, to achieve quick installation and disassembly. It is equipped with a sampling chamber to collect debris, and uses a perforated plate to separate and collect the debris.
It improves the convenience and efficiency of drill bit connection, prevents debris from splashing, and enables effective collection and separation of debris.
Smart Images
Figure CN224572762U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bone drill technology, specifically to a quick connection device for the front end of a bone drill. Background Technology
[0002] Currently, bone sampling involves drilling or punching holes in the bone, and connecting the bone drill to the drill bit and collecting bone samples are crucial steps. Traditional connection methods often use direct threaded connections or snap-fit connections, which are time-consuming and inconvenient to operate. Especially when frequent drill bit changes are required or operations are performed in different work environments, traditional connection methods severely impact work efficiency.
[0003] Furthermore, the handling of cuttings generated during drilling is also a problem. Cuttings not only easily fly and injure people, but can also pollute the working environment. Although some cuttings collection devices are available on the market, they are often complex in structure, inconvenient to install, and have poor collection efficiency. Utility Model Content
[0004] Therefore, this utility model provides a quick connection device for the front end of a bone drill to solve the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A quick-connection device for the front end of a bone drill includes a connecting sleeve, a connecting block, a sampling chamber, and a guide sleeve. The connecting sleeve is a hollow structure. One end of the connecting sleeve is connected to the connecting block, the end of the connecting block away from the connecting sleeve is connected to the sampling chamber, and the end of the sampling chamber away from the connecting block is connected to the guide sleeve. A drill bit can be inserted into the connecting sleeve and the guide sleeve. The other end of the connecting sleeve can be mounted on the bone drill, and the drill bit can pass through the guide sleeve, the sampling chamber, and the connecting block to connect with the bone drill.
[0007] Furthermore: the connecting sleeve includes a first half sleeve, a second half sleeve, a locking mechanism, and a first external thread. The first half sleeve and the second half sleeve are symmetrically arranged and are rotatably connected together by a rotating connector. The first half sleeve and the second half sleeve are each provided with a first external thread at the end near the connecting block, and a locking mechanism is provided at the end of the first half sleeve and the second half sleeve away from the first external thread. The first half sleeve and the second half sleeve can be fitted onto the bone drill.
[0008] Furthermore, both the first half and the second half have windows in the middle.
[0009] Furthermore: the locking mechanism includes a first U-shaped frame and a second U-shaped frame, which are respectively fixed on the first half-set and the second half-set. A rotating block is rotatably mounted on the first U-shaped frame, and a bolt is provided on the rotating block. The bolt can pass through the opening between the first U-shaped frame and the second U-shaped frame. A threaded sleeve is threadedly connected to the bolt, and a finger ring is provided at the end of the threaded sleeve. The width of the threaded sleeve is greater than the width of the second U-shaped frame.
[0010] Furthermore: the connecting block includes an outer sleeve, a middle partition, and a central guide sleeve. The middle partition is fixed in the middle of the outer sleeve and parallel to the end face of the outer sleeve. A central guide sleeve is provided at the center of the middle partition, which passes through the middle partition and has a circular through hole for the drill bit to pass through. The inner walls of the outer sleeve on both sides of the partition are provided with internal threads, and the outer sleeve is connected to the first external threaded part by means of threaded connection.
[0011] Furthermore: the sampling chamber includes a cover, a mesh plate and a support sleeve. One end of the cover is provided with a second external thread, which is connected to the outer sleeve by a threaded connection. The end of the cover away from the second external thread is provided with an insert. The insert, the cover and the second external thread are all made of the same material. The side wall of the cover is provided with an interface pipe that can connect to the inside of the cover. The interface pipe is connected to a negative pressure pipe.
[0012] The perforated plate is installed inside the cover. A support sleeve is provided at the center of the perforated plate. The support sleeve can be connected to the central guide sleeve. A first through hole is provided at the center of the support sleeve, which allows the drill bit to pass through. Several second through holes are evenly distributed on the perforated plate. The diameter of the second through holes is smaller than the diameter of the first through holes.
[0013] Furthermore, the cover has a funnel-shaped structure and is made of transparent material.
[0014] Furthermore: the guide sleeve includes a plug and a tube body, with a plug at one end of the tube body, the plug being able to be inserted into the insert.
[0015] Furthermore: the drill bit includes a drill body and a spiral blade, the drill bit can pass through the guide sleeve, the spiral blade is spirally wound on the drill body and connected to the tip of the drill body.
[0016] Furthermore: a support protrusion is provided in the middle of the inner wall of the cover, and the mesh plate contacts the support protrusion; the interface tube is provided on the side wall of the cover between the support protrusion and the second external thread.
[0017] This utility model has the following advantages:
[0018] 1. By adopting a split first and second half-set, along with a locking mechanism, the connecting sleeve on the bone drill can be quickly installed and removed, greatly improving work efficiency and reducing the labor intensity of operators.
[0019] 2. The window design on the connecting sleeve not only facilitates observation of the drill bit installation, but also allows the drill bit installation operation to be carried out when the connecting sleeve is already installed on the bone drill, improving the ease of use.
[0020] 3. The design of the sampling chamber can effectively collect the debris generated during the drilling process. In particular, the setting of the mesh plate enables the separation and collection of debris of different sizes, which not only prevents debris from splashing but also facilitates subsequent processing.
[0021] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description
[0022] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).
[0023] Figure 1 This is a perspective view of a quick-connect device for the front end of a bone drill, provided in one embodiment of this application.
[0024] Figure 2 This is a perspective view of another angle of the quick connection device for the front end of a bone drill according to this utility model.
[0025] Figure 3 for Figure 2 The main view.
[0026] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure along the AA direction.
[0027] Figure 5 This is an enlarged structural schematic diagram of the locking mechanism in a quick-connect device provided in one embodiment of the present invention.
[0028] Figure 6 This is a perspective view of the perforated plate in the quick-connect device for the front end of a bone drill according to this utility model.
[0029] Figure 7 This is a schematic diagram of the sampling chamber in a quick-connect device for the front end of a bone drill according to this utility model.
[0030] In the diagram: 1. Connecting sleeve; 101. First half-sleeve; 102. Rotating connector; 103. Second half-sleeve; 104. Threaded sleeve; 105. First U-shaped bracket; 106. Finger ring; 107. Window; 108. Rotating block; 109. Bolt; 110. First external threaded part; 111. Second U-shaped bracket;
[0031] 2. Connecting block; 201. Intermediate partition plate; 202. Outer sleeve; 203. Central guide sleeve;
[0032] 3. Sampling chamber; 301. Cover; 302. Mesh plate; 303. Support sleeve; 304. First through hole;
[0033] 305. Second through hole; 306. Interface tube; 308. Second external thread; 309. Insert sleeve;
[0034] 4. Guide sleeve; 401. Pipe body; 402. Plug;
[0035] 5. Drill bit; 501. Drill body; 502. Spiral blade. Detailed Implementation
[0036] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. It should be understood that these embodiments are merely for further explanation of this utility model and should not be construed as limiting the scope of protection of this utility model. Technical engineers in the field can make some non-essential improvements and adjustments to this utility model based on the above-described content. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0037] Please see Figures 1-4 A quick connection device for the front end of a bone drill includes a connecting sleeve 1, a connecting block 2, a sampling chamber 3, and a guide sleeve 4. The connecting sleeve 1 is a hollow structure. One end of the connecting sleeve 1 is connected to the connecting block 2. The end of the connecting block 2 away from the connecting sleeve 1 is connected to the sampling chamber 3. The end of the sampling chamber 3 away from the connecting block 2 is connected to the guide sleeve 4. A drill bit 5 can be inserted into the guide sleeve 4.
[0038] The connecting sleeve 1 includes a first half sleeve 101, a second half sleeve 103, a locking mechanism, and a first external thread 110. The first half sleeve 101 and the second half sleeve 103 are symmetrically arranged and are rotatably connected together by a rotating connector 102. In this embodiment, the rotating connector 102 can be a hinge or other structure. The first half sleeve 101 and the second half sleeve 103 are both provided with a first external thread 110 at the end near the connecting block 2, and a locking mechanism is provided at the end of the first half sleeve 101 and the second half sleeve 103 away from the first external thread 110. The first half sleeve 101 and the second half sleeve 103 can be fitted onto the bone drill.
[0039] Both the first half-set 101 and the second half-set 103 have a window 107 in the middle. The window 107 allows for easy observation of the drill bit 5 installed on the bone drill. It also allows the drill bit 5 to be installed on the bone drill while the connecting sleeve 1 is first installed on the bone drill.
[0040] See Figure 5 The locking mechanism includes a first U-shaped frame 105 and a second U-shaped frame 111. The first U-shaped frame 105 and the second U-shaped frame 111 are respectively fixed on the first half-set 101 and the second half-set 103. A rotating block 108 is rotatably mounted on the first U-shaped frame 105. A bolt 109 is provided on the rotating block 108. The bolt 109 can pass through the opening between the first U-shaped frame 105 and the second U-shaped frame 111. A threaded sleeve 104 is threadedly connected to the bolt 109. A finger ring 106 is provided at the end of the threaded sleeve 104. The width of the threaded sleeve 104 is greater than the width of the second U-shaped frame 111.
[0041] In use, first, put the first half-set 101 and the second half-set 103 onto the bone drill, then rotate the bolt 109 so that the bolt 109 passes through the second U-shaped frame 111, and then tighten the threaded sleeve 104 until the threaded sleeve 104 can tightly contact the second U-shaped frame 111. At this time, the first half-set 101 and the second half-set 103 are locked and fixed on the bone drill. When it is necessary to remove the connecting sleeve 1 from the bone drill, first remove the drill bit, then loosen the threaded sleeve 104, and then rotate the bolt 109 to one side of the first U-shaped frame 105 to remove the connecting sleeve 1 from the bone drill.
[0042] The connecting block 2 includes an outer sleeve 202, a middle partition 201, and a central guide sleeve 203. The middle partition 201 is fixed in the middle of the outer sleeve 202 and is parallel to the end face of the outer sleeve 202. The central guide sleeve 203 is provided at the center of the middle partition 201. The central guide sleeve 203 passes through the middle partition 201 and has a circular through hole for the drill bit 5 to pass through. The inner walls of the outer sleeve 202 on both sides of the partition are provided with internal threads. The first external thread 110 can be connected to the outer sleeve 202 by means of threaded connection.
[0043] To further improve the sealing effect, a sealing ring is provided between the drill bit 5 and the central guide sleeve 203. The sealing ring can be set on the central guide sleeve 203. The sealing ring can also prevent leakage of blood, bone marrow and other fluids during the operation.
[0044] See 6- Figure 7 The sampling chamber 3 includes a cover 301, a mesh plate 302, and a support sleeve 303. The cover 301 has a funnel-shaped structure and is made of transparent material. One end of the cover 301 is provided with a second external thread 308, which is connected to the outer sleeve 202 by a threaded connection. The end of the cover 301 away from the second external thread 308 is provided with an insert 309. The insert 309, the cover 301, and the second external thread 308 are all made of the same material.
[0045] The perforated plate 302 is disposed inside the cover 301. A support sleeve 303 is provided at the center of the perforated plate 302. The support sleeve 303 can be connected to the central guide sleeve 203. A first through hole 304 is provided at the center of the support sleeve 303. The first through hole 304 can allow the drill bit 5 to pass through. In this embodiment, the support sleeve 303 can be inserted into the central guide sleeve 203. A plurality of second through holes 305 are evenly distributed on the perforated plate 302. The diameter of the second through holes 305 is much smaller than the diameter of the first through holes 304.
[0046] Furthermore, the perforated plate 302 contacts the inner wall of the cover 301; the side wall of the cover 301 is provided with an interface pipe 306 that can communicate with the interior of the cover 301. In this embodiment, the interface pipe 306 can be connected to a negative pressure pipe; the interface pipe 306 is located on the side wall of the cover 301 between the perforated plate 302 and the second external threaded part 308; due to the arrangement of the perforated plate 302 and the support sleeve 303, the perforated plate 302 can be supported and contacted with the cover 301, thereby fixing the perforated plate 302. In order to improve the fixing effect, a support platform for supporting the perforated plate 302 can also be provided on the cover 301. The support platform can be a continuous or discontinuous protrusion.
[0047] See Figure 4 The guide sleeve 4 includes a plug 402 and a tube 401. One end of the tube 401 is provided with a plug 402, which can be inserted into the insert 309.
[0048] The drill bit 5 includes a drill body 501 and a spiral blade 502. The drill bit 5 can pass through the guide sleeve 4. The spiral blade 502 is spirally wound on the drill body 501 and connected to the tip of the drill body 501.
[0049] In use, the guide sleeve 4 is fixed to the sampling chamber 3, and the sampling chamber 3 is connected to the connecting sleeve 1 through the connecting block 2. Then, the connecting sleeve 1 is fixed to the bone drill, and the drill bit 5 is connected to the bone drill. At this time, the drill bit 5 can pass through the connecting block 2, the sampling chamber 3, and the guide sleeve 4. Then, the interface pipe 306 on the sampling chamber 3 is connected to the negative pressure pipeline, and then the bone drill is opened. The material drilled by the bone drill is transported into the sampling chamber 3 by the spiral blade 502. Larger debris is blocked and retained in the sampling chamber 3 by the mesh plate 302; smaller debris passes through the mesh plate 302 and is then sucked into the negative pressure pipeline and collected.
[0050] Furthermore, the connecting device of this invention can also be used on other drill guns.
[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A quick-connect device for the front end of a bone drill, comprising a connecting sleeve (1), a connecting block (2), a sampling chamber (3), and a guide sleeve (4), characterized in that, The connecting sleeve (1) is a hollow structure. One end of the connecting sleeve (1) is connected to a connecting block (2). The end of the connecting block (2) away from the connecting sleeve (1) is connected to a sampling chamber (3). The end of the sampling chamber (3) away from the connecting block (2) is connected to a guide sleeve (4). A drill bit (5) can be inserted into the connecting sleeve guide sleeve (4). The other end of the connecting sleeve (1) is installed on the bone drill. The drill bit (5) passes through the guide sleeve (4), the sampling chamber (3), and the connecting block (2) and is connected to the bone drill.
2. The quick-connect device for the front end of a bone drill according to claim 1, characterized in that, The connecting sleeve (1) includes a first half sleeve (101), a second half sleeve (103), a locking mechanism, and a first external thread (110). The first half sleeve (101) and the second half sleeve (103) are symmetrically arranged. The first half sleeve (101) and the second half sleeve (103) are rotatably connected together by a rotating connector (102). The first half sleeve (101) and the second half sleeve (103) are both provided with a first external thread (110) at the end near the connecting block (2). The first half sleeve (101) and the second half sleeve (103) are provided with a locking mechanism at the end away from the first external thread (110). The first half sleeve (101) and the second half sleeve (103) can be fitted onto the bone drill.
3. The quick-connect device for the front end of a bone drill according to claim 2, characterized in that, Both the first half-set (101) and the second half-set (103) have windows (107) in the middle.
4. The quick-connect device for the front end of a bone drill according to claim 2, characterized in that, The locking mechanism includes a first U-shaped frame (105) and a second U-shaped frame (111). The first U-shaped frame (105) and the second U-shaped frame (111) are respectively fixed on the first half-set (101) and the second half-set (103). A rotating block (108) is rotatably mounted on the first U-shaped frame (105). A bolt (109) is provided on the rotating block (108). The bolt (109) can pass through the opening between the first U-shaped frame (105) and the second U-shaped frame (111). A threaded sleeve (104) is threadedly connected to the bolt (109). A finger ring (106) is provided at the end of the threaded sleeve (104). The width of the threaded sleeve (104) is greater than the width of the second U-shaped frame (111).
5. The quick-connect device for the front end of a bone drill according to claim 1, characterized in that, The connecting block (2) includes an outer sleeve (202), a middle partition (201), and a central guide sleeve (203). The middle partition (201) is fixed in the middle of the outer sleeve (202) and parallel to the end face of the outer sleeve (202). A central guide sleeve (203) is provided at the center of the middle partition (201). The central guide sleeve (203) passes through the middle partition (201) and has a circular through hole for the drill bit (5) to pass through. The inner walls of the outer sleeve (202) on both sides of the partition are provided with internal threads, and the outer sleeve (202) is connected to the first external thread part (110) by means of threaded connection.
6. The quick-connect device for the front end of a bone drill according to claim 1, characterized in that, The sampling chamber (3) includes a cover (301), a mesh plate (302), and a support sleeve (303). One end of the cover (301) is provided with a second external thread (308), which is connected to the outer sleeve (202) by a threaded connection. The end of the cover (301) away from the second external thread (308) is provided with a tube (309). The tube (309), the cover (301), and the second external thread (308) are all made of the same material. The side wall of the cover (301) is provided with an interface pipe (306) that can connect to the inside of the cover (301). The interface pipe (306) is connected to a negative pressure pipe. The perforated plate (302) is disposed inside the cover (301). A support sleeve (303) is provided at the center of the perforated plate (302). The support sleeve (303) can be connected to the central guide sleeve (203). A first through hole (304) is provided at the center of the support sleeve (303). The first through hole (304) can allow the drill bit (5) to pass through. Several second through holes (305) are evenly distributed on the perforated plate (302). The diameter of the second through hole (305) is smaller than the diameter of the first through hole (304).
7. The quick-connect device for the front end of a bone drill according to claim 6, characterized in that, The cover (301) has a funnel-shaped structure and is made of transparent material.
8. The quick-connect device for the front end of a bone drill according to claim 1, characterized in that, The guide sleeve (4) includes a plug (402) and a tube (401). One end of the tube (401) is provided with a plug (402), which can be inserted into the insert (309).
9. The quick-connect device for the front end of a bone drill according to claim 1, characterized in that, The drill bit (5) includes a drill body (501) and a spiral blade (502). The drill bit (5) can pass through the guide sleeve (4). The spiral blade (502) is spirally wound on the drill body (501) and connected to the tip of the drill body (501).