Bend ultrasonic osteotome
By setting up bone cutting mechanism and protective measures in the elbow ultrasonic bone knife, the problem of low connection strength of existing ultrasonic bone cutting knives is solved, and the stability and service life of the equipment are improved.
Patent Information
- Application Number
- CN202420354056.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-26
AI Technical Summary
When used, the existing ultrasonic bone scissor knife is shorter in the connection part between the cutter head and the sleeve, resulting in low connection strength, which is prone to breakage, affecting its service life.
An elbow ultrasonic bone knife is designed, by setting the bone cutting mechanism to tighten the elbow cutting knife and bone cutting block on a longer mounting sleeve, increasing the connection strength, and a protective sleeve and buffer ring are provided at the connection. To prevent damage, external protective case and sound insulation cover are used to improve the protection and service life of the equipment.
It improves the connection strength and service life of the tool rod, prevents damage to the connection, and extends the service life of the equipment through protective and sound insulation measures.
Smart Images
Figure CN222130207U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ultrasonic bone cutters, in particular to an elbow ultrasonic bone cutter. Background Art
[0002] In orthopedic surgery, ultrasonic bone cutters are often used to cut, scrape or correct bones. Ultrasonic bone cutters mainly use piezoelectric technology to convert electrical energy into ultrasonic vibrations, and use the mechanical effect of ultrasound to make the blade vibrate in the forward and backward directions. The blade is used for bone cutting. The vibration amplitude should not be too large during bone cutting, so ultrasonic vibration is most appropriate.
[0003] Publication number CN 205144655 U discloses a dual-use ultrasonic bone cutting knife, including a shell, one end of which is provided with a piezoelectric driver and an ultrasonic vibrator connected to the piezoelectric driver, and a sleeve is installed on the ultrasonic driver, and the sleeve extends from the other end of the shell. In fact, the new type of blade head is set as a sawtooth upper blade head and a blade-shaped lower blade head. The sawtooth upper blade head can be used for cutting hard bone tissue in conjunction with the vibration of the ultrasonic vibrator; and the blade-shaped lower blade head can cut cartilage tissue, or can be used to cut some neutral bone tissue in conjunction with the vibration of the ultrasonic vibrator. It can cut different bone tissues, has diverse functions, and is easy to operate.
[0004] However, the bone cutting knife has the following shortcomings: when the device is used, the knife rod on the knife head is installed on the sleeve with a single fastening bolt, but the connection part between the two is often short, resulting in low overall connection strength, which causes it to break after being accidentally hit, affecting its service life.
[0005] Therefore, the utility model provides an elbow ultrasonic osteotome to solve the above problems. Utility Model Content
[0006] In view of the deficiencies in the prior art, the utility model provides an elbow ultrasonic osteotome to solve the above problems.
[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: an elbow ultrasonic bone knife, comprising a fixed plate, one side of the fixed plate is fixedly connected to a piezoelectric driver, one side of the piezoelectric driver is fixedly connected to an ultrasonic vibrator, an outer sleeve is fixedly connected to the ultrasonic vibrator, and a bone cutting mechanism is arranged on the outer sleeve;
[0008] The bone cutting mechanism includes a fixing screw fixedly connected to the inner wall of one side of the outer sleeve, a mounting sleeve is threadedly sleeved on the fixing screw, one end of the mounting sleeve slides and extends outside the outer sleeve, one end of the mounting sleeve is fixedly connected to a support plate, one side of the support plate is fixedly connected to a connecting tool rod, one end of the connecting tool rod is fixedly connected to an elbow cutter, and a bone cutting grinding block is provided on one side of the elbow cutter.
[0009] Preferably, a protective sleeve is fixedly connected to one side of the support plate, and the outer wall fixed sleeve of the protective sleeve is provided with three buffer rings, and the buffer rings are made of rubber material. The protective sleeve and buffer rings can shield and protect the connection between the outer sleeve and the support plate to prevent it from being directly impacted and damaged.
[0010] Preferably, an outer protective shell is provided on one side of the fixed disk, and one end of the outer protective shell is connected through a limiting sleeve. At the same time, the outer protective shell can provide protection for related electrical components, thereby increasing their service life.
[0011] Preferably, the outer wall fixing sleeve of the outer protective shell is provided with a fastening plate, and a plurality of bolts are fixedly connected to the fixing plate. The bolts slide through the fastening plate, and nuts are provided on the threaded sleeves of the bolts. The outer protective shell can be firmly installed on the fixing plate by using the fastening plate, bolts and nuts in combination.
[0012] Preferably, a connecting bracket is fixedly connected to a side of the fixing plate away from the piezoelectric driver, and a plurality of screw holes are provided on the connecting bracket. The fixing plate can be conveniently installed by using the connecting bracket and the screw holes in combination.
[0013] Preferably, a sound insulation sleeve is fixedly connected to the inner wall of the outer protective shell, and the sound insulation sleeve is made of sound insulation cotton material. The provision of the sound insulation sleeve can reduce noise interference caused by the piezoelectric driver and the ultrasonic vibrator.
[0014] Preferably, a sealing sleeve is fixedly connected to one side of the support plate, one side of the sealing sleeve is in contact with one end of the outer sleeve, and the sealing sleeve is made of rubber material. The sealing sleeve can seal the connection gap between the support plate and the outer sleeve to prevent dust and impurities from entering.
[0015] Beneficial Effects
[0016] The utility model provides an elbow ultrasonic osteotome. Compared with the prior art, it has the following beneficial effects:
[0017] (1) The elbow ultrasonic bone cutter can tighten the elbow cutter and the bone cutting grinding block onto the fixed screw rod by means of a longer mounting sleeve through the bone cutting mechanism, thereby improving the connection strength therebetween, enabling the connecting knife rod to work stably and increasing its service life.
[0018] (2) The curved ultrasonic bone knife can shield and protect the connection between the outer sleeve and the support plate by means of the protective sleeve and the buffer ring to prevent it from being directly impacted and damaged. At the same time, the outer protective shell can provide protection for related electrical components, thereby increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;
[0020] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;
[0021] Figure 3 It is a partial structural schematic diagram of the bone cutting mechanism in the utility model;
[0022] Figure 4 It is a schematic diagram of the explosion installation structure of the fixed plate and the outer protective shell in the utility model.
[0023] In the figure: 1. fixing plate; 2. piezoelectric driver; 3. ultrasonic vibrator; 4. outer sleeve; 5. fixing screw; 6. mounting sleeve; 7. support plate; 8. connecting knife rod; 9. elbow cutter; 10. bone cutting grinding block; 11. protective cover; 12. buffer ring; 13. outer protective shell; 14. limiting sleeve; 15. fastening plate; 16. bolt; 17. nut; 18. connecting bracket; 19. screw hole; 20. sound insulation sleeve; 21. sealing sleeve. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Embodiment 1:
[0026] See also Figure 2 and Figure 3, an elbow ultrasonic bone cutter, comprising a fixed plate 1, a piezoelectric driver 2 is fixedly connected to one side of the fixed plate 1, an ultrasonic vibrator 3 is fixedly connected to one side of the piezoelectric driver 2, an outer sleeve 4 is fixedly connected to the ultrasonic vibrator 3, and a bone cutting mechanism is arranged on the outer sleeve 4;
[0027] The bone cutting mechanism includes a fixed screw 5 fixedly connected to the inner wall of one side of the outer sleeve 4, a mounting sleeve 6 is threadedly sleeved on the fixed screw 5, one end of the mounting sleeve 6 slides and extends to the outside of the outer sleeve 4, one end of the mounting sleeve 6 is fixedly connected to a support plate 7, one side of the support plate 7 is fixedly connected to a connecting rod 8, one end of the connecting rod 8 is fixedly connected to an elbow cutter 9, and one side of the elbow cutter 9 is provided with a bone cutting grinding block 10.
[0028] Embodiment 2:
[0029] See also Figures 1 to 4 , this embodiment provides a technical solution based on the first embodiment: a protective sleeve 11 is fixedly connected to one side of the support plate 7, and the protective sleeve 11 is slidably sleeved on the outer wall of the outer sleeve 4. The outer wall fixed sleeve of the protective sleeve 11 is provided with three buffer rings 12, and the buffer ring 12 is made of rubber material; an outer protective shell 13 is provided on one side of the fixed plate 1, and one end of the outer protective shell 13 is connected through the limited sleeve 14; a fastening plate 15 is provided on the outer wall fixed sleeve of the outer protective shell 13, and a plurality of bolts 16 are fixedly connected to the fixed plate 1, and the bolts 16 slide through the fastening plate 15, and nuts 17 are threadedly sleeved on the bolts 16; a connecting bracket 18 is fixedly connected to the side of the fixed plate 1 away from the piezoelectric driver 2, and a plurality of screw holes 19 are opened on the connecting bracket 18; a sound insulation sleeve 20 is fixedly connected to the inner wall of the outer protective shell 13, and the sound insulation sleeve 20 is made of sound insulation cotton material; a sealing sleeve 21 is fixedly connected to one side of the support plate 7, and one side of the sealing sleeve 21 contacts one end of the outer sleeve 4, and the sealing sleeve 21 is made of rubber material.
[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0031] Working principle: During installation, first align the fastening plate 15 on the outer protective shell 13 with the bolt 16 on the fixed plate 1 and insert it, then tighten the nut 17 to firmly install the fastening plate 15 on the fixed plate 1, then align the installation sleeve 6 on one side of the support plate 7 with the fixing screw 5 and tighten it until the sealing sleeve 21 on one side of the support plate 7 is pressed against the outer sleeve 4. At this time, the connecting knife rod 8 is firmly installed, and then the fixed plate 1 is installed on the external device through the connecting bracket 18 and the screw hole 19 to complete the installation.
[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An elbow ultrasonic osteotome, comprising a fixing plate (1), characterized in that: A piezoelectric driver (2) is fixedly connected to one side of the fixed plate (1), an ultrasonic vibrator (3) is fixedly connected to one side of the piezoelectric driver (2), an outer sleeve (4) is fixedly connected to the ultrasonic vibrator (3), and a bone cutting mechanism is provided on the outer sleeve (4); The bone cutting mechanism comprises a fixing screw (5) fixedly connected to the inner wall of one side of the outer sleeve (4); a mounting sleeve (6) is threadedly sleeved on the fixing screw (5); one end of the mounting sleeve (6) is slidably extended to the outside of the outer sleeve (4); one end of the mounting sleeve (6) is fixedly connected to a support plate (7); one side of the support plate (7) is fixedly connected to a connecting knife rod (8); one end of the connecting knife rod (8) is fixedly connected to an elbow cutter (9); one side of the elbow cutter (9) is provided with a bone cutting grinding block (10).
2. The curved ultrasonic osteotome according to claim 1, characterized in that: A protective sleeve (11) is fixedly connected to one side of the support plate (7), and the outer wall of the protective sleeve (11) is fixedly provided with three buffer rings (12), and the buffer rings (12) are made of rubber material.
3. The curved ultrasonic osteotome according to claim 2, characterized in that: An outer protective shell (13) is provided on one side of the fixed disk (1), and one end of the outer protective shell (13) is connected through a limiting sleeve (14).
4. The curved ultrasonic osteotome according to claim 3, characterized in that: The outer wall fixing sleeve of the outer protective shell (13) is provided with a fastening disk (15), and a plurality of bolts (16) are fixedly connected to the fixing disk (1), and the bolts (16) slide through the fastening disk (15), and nuts (17) are threadedly sleeved on the bolts (16).
5. The curved ultrasonic osteotome according to claim 1, characterized in that: A connecting bracket (18) is fixedly connected to the side of the fixed plate (1) away from the piezoelectric driver (2), and a plurality of screw holes (19) are provided on the connecting bracket (18).
6. The curved ultrasonic osteotome according to claim 3, characterized in that: A sound insulation sleeve (20) is fixedly connected to the inner wall of the outer protective shell (13), and the sound insulation sleeve (20) is made of sound insulation cotton material.
7. The curved ultrasonic osteotome according to claim 1, characterized in that: A sealing sleeve (21) is fixedly connected to one side of the support plate (7), one side of the sealing sleeve (21) is in contact with one end of the outer sleeve (4), and the sealing sleeve (21) is made of rubber material.