CN215228217U - Clamping and positioning device and needle placing device - Google Patents
Clamping and positioning device and needle placing device Download PDFInfo
- Publication number
- CN215228217U CN215228217U CN202120620385.7U CN202120620385U CN215228217U CN 215228217 U CN215228217 U CN 215228217U CN 202120620385 U CN202120620385 U CN 202120620385U CN 215228217 U CN215228217 U CN 215228217U
- Authority
- CN
- China
- Prior art keywords
- clamping
- positioning device
- housing
- needle
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a centre gripping positioner and put needle device, centre gripping positioner, include: a collet (11), a housing (12) for mounting the collet (11), and a return element (13) arranged between the collet (11) and the housing (12); the clamping head (11) is provided with a clamping part (111); the clamping head (11) is movably connected with the shell (12), the clamping head (11) is driven to move relative to the shell (12) along the axial direction, and then the clamping part (111) has opening and closing changes. The clamping and positioning device can be adapted to puncture needles with different specifications, meets more operation requirements, and is convenient to use and wide in application range.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a centre gripping positioner and put needle device.
Background
With the continuous development of medical science and technology, surgical robots are more and more widely applied to clinical operations, in particular to orthopedic surgical robots, after the orthopedic surgical robots complete space navigation and positioning work, medical staff need to implant bone pins into bones of patients according to a path set by the robots, and finally a series of surgical operations are completed.
The existing orthopedic surgery robot belongs to auxiliary equipment, only provides optimal channel path information, and the operation of needle placement is still performed by medical personnel, so that no reference information or device is provided for controlling the depth of the inserted needle, and the depth of the inserted needle is confirmed mainly by methods of marking by an X-ray film shot by a doctor and a ruler with scales and the like.
During the process of surgical needle placement, the information about the needle placement depth mainly comes from the following three aspects:
1. the surgical experience of the doctor;
2. the needle is placed while the lateral X-ray film is shot;
3. marking by adopting a scale with scales;
the above process has the following disadvantages:
by adopting the method, the depth information is inaccurately positioned, the requirement on the operation experience of medical staff is higher, and meanwhile, the radiation quantity of a patient is increased and the operation time is prolonged by continuously carrying out lateral shooting on the X-ray film.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a centre gripping positioner and put needle device.
In order to realize the above object of the present invention, the utility model provides a clamping and positioning device, include: the device comprises a chuck, a shell and a reset element, wherein the shell is used for mounting the chuck;
the chuck is provided with a clamping part;
the clamping head is movably connected with the shell, the clamping head is driven to move relative to the shell along the axial direction, and the clamping part is opened and closed.
According to an aspect of the present invention, the clamping portion includes: a plurality of circumferentially spaced jaws;
the clamping jaws are integrally in a cylindrical shape in a furled state, the outer surface of the cylindrical shape is in a conical surface-shaped structure, and a clamping channel for clamping an object is formed in the middle of the cylindrical shape.
According to one aspect of the present invention, the housing is provided with an accommodating chamber for accommodating the clamping portion;
the diameter of the opening of the accommodating cavity on the end part of the shell is smaller than the maximum diameter of the outer surface of the cylindrical body.
According to an aspect of the present invention, the inner surface of the accommodating cavity is a conical surface structure, and is used for abutting against the outer surface of the cylindrical body.
According to one aspect of the present invention, the chuck further comprises a connecting portion;
the clamping part is connected with the connecting part;
the connecting part is provided with a connecting channel penetrating through the body of the connecting part, and the connecting channel is communicated with the clamping channel.
According to one aspect of the present invention, a bearing member is provided on an outer side surface of the connecting portion;
the shell is provided with a connecting cavity communicated with the accommodating cavity;
the bearing part is positioned in the connecting cavity, and the outer surface of the bearing part is movably connected with the inner surface of the connecting cavity in a contact manner;
the reset element is arranged in the connecting cavity, and two opposite ends of the reset element are respectively abutted against the bearing piece and the bottom end of the connecting cavity.
According to an aspect of the utility model, connect the chamber be provided with on the opening of housing end portion be used for right it carries out spacing locating part to hold by the piece.
According to an aspect of the utility model, the casing with one of the adjacent clamping part is served and is provided with soft gasket.
According to an aspect of the present invention, the housing is provided as a separate body.
According to an aspect of the present invention, the connecting portion is kept away from one end of the clamping portion is provided with an annular boss extending along the radial direction.
In order to achieve the above object, the present invention provides a needle placing device using the above clamping and positioning device, including: the clamping and positioning device, the puncture needle and the guide sleeve;
the clamping head of the clamping and positioning device is used for clamping the puncture needle;
the guide sleeve is provided with a guide channel for the puncture needle to pass through.
According to one aspect of the utility model, the puncture needle is provided with scales.
According to the utility model discloses a scheme adopts centre gripping positioner to confirm the depth of needle insertion with guide sleeve's mode for put the needle process visual, effectively guaranteed the degree of accuracy and the flexibility of putting the needle process.
According to the utility model discloses a scheme, but the pjncture needle of the different specifications of centre gripping positioner adaptation satisfies more operation demands, convenient to use, and application scope is wide.
According to the utility model discloses a scheme, the equal repeated disinfection of material of centre gripping positioner, guide sleeve isotructure is used, very big reduction use cost.
According to the utility model discloses a scheme, guide sleeve provides the passageway and supports, prevents that the needle point from sliding, has further guaranteed the accuracy of inserting the needle.
According to the utility model discloses a scheme, centre gripping positioner's principle is simple, and the sound construction presss from both sides tightly reliably.
According to the utility model discloses a scheme, overall structure operates directly perceived, convenient, guarantees operation safety, shortens the operation time simultaneously.
Drawings
Fig. 1 schematically shows a front view of a clamping and positioning device according to an embodiment of the invention;
fig. 2 schematically shows a cross-sectional view of a clamping and positioning device according to an embodiment of the invention;
fig. 3 schematically illustrates an opening view of a collet of a clamping and positioning device according to an embodiment of the present invention;
figure 4 schematically illustrates a cross-sectional view of a chuck in accordance with one embodiment of the present invention;
figure 5 schematically illustrates a side view of a chuck in accordance with an embodiment of the present invention;
FIG. 6 schematically illustrates a block diagram of a needle placement device in accordance with an embodiment of the present invention;
fig. 7 schematically shows a construction of a guide sleeve according to an embodiment of the invention;
fig. 8 schematically shows a cross-sectional view of a guide sleeve according to an embodiment of the invention;
fig. 9 schematically shows a state diagram of the use of the needle placement device according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is not limited to the following embodiments.
As shown in fig. 1, according to an embodiment of the present invention, the present invention provides a clamping and positioning device, which includes: a collet 11, a housing 12 for mounting the collet 11, and a reset element 13 disposed between the collet 11 and the housing 12. In the present embodiment, the chuck 11 is provided with a gripping portion 111. Meanwhile, the chuck 11 is movably connected to the housing 12, so that the chuck 11 is driven to move relative to the housing 12 along the axial direction, and the clamping portion 111 has an opening and closing change. In the present embodiment, the reset element 13 is used for providing elastic reset and support for the chuck 11, and ensuring stable clamping action of the chuck 11. The return element 13 is a compression spring.
As shown in fig. 1, according to an embodiment of the present invention, the clamping portion 111 includes: a plurality of circumferentially spaced jaws 1111. In this embodiment, the clamping portion 111 has an expanding taper structure, the clamping jaws 1111 are in a closed state, the whole clamping jaw is in a cylindrical shape, the outer surface of the cylindrical shape is in a taper structure, and a clamping channel 1111a for clamping an object is formed in the middle of the cylindrical shape. Wherein the outer surface of each jaw 1111 forms a portion of the outer surface of the post formed in the collapsed condition and the inner surface of each jaw 1111 forms a portion of the gripping channel 1111a in the collapsed condition. In this embodiment, the clamping jaw 1111 has a fixed end and a free end, and the clamping jaw 1111 is connected to a corresponding structure through the fixed end, and the free end can realize the change of the opening and closing state. In this embodiment, the clamping jaws 1111 are elastic, when the chuck 11 is received in the housing 12, under the constraint action of the housing, the clamping jaws 1111 are closed together to achieve the clamping effect, and the chuck 11 is driven to move along the axial direction relative to the housing 12, so that the clamping jaws 1111 on the clamping portion 111 can be gradually opened away from each other along with the change of the position under the elastic action of the clamping jaws themselves, thereby achieving the effect of releasing the object, and the opening and closing effect of the clamping portion 111 achieved by the reciprocating movement can achieve the quick clamping and positioning of the object.
As shown in fig. 1, according to an embodiment of the present invention, a receiving cavity 12a for receiving the clamping portion 111 is provided on the housing 12. In the present embodiment, the accommodating cavity 12a is used for accommodating a plurality of clamping jaws 1111 disposed on the clamping portion 111 to ensure that the clamping jaws can be effectively and stably folded to achieve the function of clamping objects. In the present embodiment, the opening diameter of the housing cavity 12a at the end of the housing 12 is smaller than the maximum diameter of the outer surface of the cylindrical body. It should be noted that the clamping and folding effects of the clamping portion 111 can be achieved by adjusting the opening of the accommodating cavity 12a, the size of the outer surface of the clamping jaws 1111, the interval between the clamping jaws 1111, and the like according to actual needs, so as to achieve stable clamping and meet the clamping requirements of objects (such as puncture needles) with different sizes.
As shown in fig. 1, according to an embodiment of the present invention, the inner surface of the accommodating cavity 12a is a conical surface structure for abutting against the outer surface of the column body. In this embodiment, the conical surface structure of the inner surface of the housing chamber 12a and the conical surface structure of the outer surface of the cylindrical body formed by the holding jaws 1111 being closed together are matched, if the outer surface of the cylindrical body formed by the holding jaws 1111 being closed together is a conical structure, the conical surface structure of the inner surface of the housing chamber 12a is also a conical structure, and if the outer surface of the cylindrical body formed by the holding jaws 1111 being closed together is a pyramidal structure, the conical surface structure of the inner surface of the housing chamber 12a is also a pyramidal structure.
As shown in fig. 1, according to an embodiment of the present invention, the collet 11 further includes a connecting portion 112. In the present embodiment, the clamping portion 111 is connected to the connecting portion 112; wherein, the fixed end of the clamping jaw 1111 is connected with the connecting part 112. In this embodiment, the clamping jaw 1111 and the connecting portion 112 may be integrally provided, or may be detachably connected, and may be selectively provided according to actual needs. In the present embodiment, the connection portion 112 is provided with a connection passage 112a penetrating the body thereof, and the connection passage 112a communicates with the clamping passage 1111 a. Through the setting, the object that has made things convenient for different length is by the centre gripping, in order to guarantee the utility model discloses a position can be adjusted on this object to the centre gripping positioner.
As shown in fig. 1, according to an embodiment of the present invention, a bearing part 1121 is disposed on an outer side surface of the connecting portion 112. In the present embodiment, the supporting member 1121 has a continuous ring structure provided on the outer surface of the connecting portion 112, and may have a protrusion structure provided at equal intervals. In the present embodiment, the housing 12 is provided with a connection chamber 12b communicating with the accommodation chamber 12 a; the bearing part 1121 is positioned in the connecting cavity 12b, and the outer surface of the bearing part 1121 is movably connected with the inner surface of the connecting cavity 12b in a contact manner; in the present embodiment, the reset element 13 is disposed in the connecting cavity 12b, and two opposite ends of the reset element 13 respectively abut against the supporting part 1121 and the bottom end (provided with a platform for supporting the reset element 13) of the connecting cavity 12 b.
As shown in fig. 1, according to an embodiment of the present invention, the connection cavity 12b is provided with a limiting member 12c for limiting the position of the leaning member 1121 on the opening of the end portion of the housing 12. In the present embodiment, the stopper 12c has a ring-shaped structure.
As shown in fig. 1, according to an embodiment of the present invention, a soft gasket 12d is provided at one end of the case 12 adjacent to the clamping portion 111. In the present embodiment, the spacer 12d is a silicone spacer for achieving a buffering action.
As shown in fig. 1, according to an embodiment of the present invention, the housing 12 is provided as a separate body. In the present embodiment, the housing 12 is divided into a plurality of portions (e.g., two portions), and the plurality of portions are fastened to each other and then fixed by a connecting member.
As shown in fig. 1, according to an embodiment of the present invention, an end of the connecting portion 112 away from the clamping portion 111 is provided with a radially extending annular boss 1122. The annular boss 1122 can facilitate driving the chuck 11 to move, so that the structure is simple and the use is convenient.
As shown in fig. 1, according to an embodiment of the present invention, the present invention provides a needle placing device using the aforementioned clamping and positioning device, including: the positioning device 1, the puncture needle 2 and the guide sleeve 3 are clamped. In the present embodiment, the holder 11 of the holding and positioning device 1 is used to hold the puncture needle 2; the guide sleeve 3 is provided with a guide channel 31 for the puncture needle 2 to pass through. In the present embodiment, the puncture needle 2 may be a bone needle, a kirschner wire, or a guide wire.
As shown in FIG. 1, according to one embodiment of the present invention, the puncture needle 2 is provided with a scale.
According to an embodiment of the present invention, the collet 11 and the housing 12 of the clamping and positioning device 1 are made of stainless steel. The puncture needle 2 and the guide sleeve 3 are both made of stainless steel materials.
According to the utility model discloses an embodiment, along guide sleeve 3's axial, guide sleeve 3's external diameter is by big change to little to tip at the minor diameter end is provided with the arch of regular shape along the axial interval, and bellied edge has the sword limit. In the present embodiment, the protrusion has a triangular shape.
To further explain the utility model, the needle placing method using the needle placing device of the utility model will be explained in detail.
1. Before the operation of needle placement, a doctor simulates the optimal path of needle implantation through preoperative planning software equipped on a surgical robot, and simultaneously measures information (including angle information, position information and depth information) of needle placement.
2. The guiding sleeve is inserted into the muscle tissue of the human body through the path information planned by the surgical robot, and the conical end (namely, the end provided with the bulge) of the guiding sleeve reaches the surface of the bone. In the embodiment, as the diameter of the guide sleeve is reduced and the bulge with the knife edge is arranged, the smooth implantation of the guide sleeve is effectively ensured.
3. Before the needle is placed, the measured needle placing depth information is quantified on the spicule through an operation scale, the needle placing depth and the standard length of the guide sleeve are overlapped in the process,
4. after the quantization of the step 3, the annular boss 1122 on the collet 11 is pressed with force to press out the clamping portion 111, the clamping jaws 1111 are changed from the closed state to the open state under the self elastic action, the bone pin passes through the collet 11 until the position quantized in the step 3, the annular boss 1122 is released, the collet is reset under the elastic support action of the reset element 13, and the bone pin is clamped.
5. The doctor clamps the tail part of the bone needle through the operation-oriented bone drill and starts to carry out needle placing operation until the lower plane of the clamping and positioning device is attached to the upper plane of the guide sleeve, and needle placing is finished. In the present embodiment, the spacer 12d functions to relax the bonding position.
According to the utility model discloses, can confirm the depth of needle insertion through the mode that centre gripping positioner and guide sleeve combined together, avoid the guidance of doctor's experience, reduce patient's radiation dose simultaneously, shorten the operation time of this process, and then shorten whole operation time.
According to the utility model, the adopted overall structure form has strong adaptability, can satisfy puncture needles of different specifications, and further more operation demands of more extensive adaptation.
According to the utility model discloses, its overall structure machinability is strong, and the material repeatability of selecting for use is disinfected, repeatability uses.
According to the utility model discloses, centre gripping positioner principle easy operation through quick pressing down and unclamp can press from both sides the pjncture needle tightly, has effectively guaranteed the degree of accuracy of position location.
According to the utility model discloses, clamping position device sets up the silica gel pad with the joint position between the guide sleeve, has prevented the wearing and tearing of material and the impact that the laminating caused, has guaranteed operation safety.
According to the utility model discloses, the guide sleeve structure conveniently gets into the human body, through musculature, reachs the bone surface, provides the passageway support for the spicule simultaneously, places to bore the bone in-process and appears the needle point and slide.
The foregoing is merely exemplary of embodiments of the present invention and reference should be made to the apparatus and structures herein not described in detail as it is known in the art to practice the same in general equipment and general methods.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A clamping and positioning device, comprising: a collet (11), a housing (12) for mounting the collet (11), and a return element (13) arranged between the collet (11) and the housing (12);
the clamping head (11) is provided with a clamping part (111);
the clamping head (11) is movably connected with the shell (12), the clamping head (11) is driven to move relative to the shell (12) along the axial direction, and then the clamping part (111) has opening and closing changes.
2. Clamping and positioning device according to claim 1, characterized in that said clamping part (111) comprises: a plurality of circumferentially spaced jaws (1111);
the clamping jaws (1111) are in a cylindrical shape integrally in a furled state, the outer surface of the cylindrical body is in a conical surface-shaped structure, and a clamping channel (1111a) for clamping an object is formed in the middle of the cylindrical body.
3. Clamping and positioning device according to claim 2, characterized in that said housing (12) is provided with a housing cavity (12a) for housing said clamping portion (111);
the diameter of the opening of the receiving chamber (12a) at the end of the housing (12) is smaller than the maximum diameter of the outer surface of the cylindrical body.
4. A clamping and positioning device according to claim 3, characterized in that the inner surface of said housing chamber (12a) presents a conical surface-like configuration for cooperating abutment with the outer surface of said cylindrical body.
5. A clamping and positioning device according to any one of claims 2 to 4, characterized in that said collet (11) further comprises a connecting portion (112);
the clamping part (111) is connected with the connecting part (112);
the connecting part (112) is provided with a connecting channel (112a) penetrating through the body of the connecting part, and the connecting channel (112a) is communicated with the clamping channel (1111 a).
6. A clamping and positioning device according to claim 5, characterized in that a bearing part (1121) is arranged on the outer side surface of the connecting part (112);
the shell (12) is provided with a connecting cavity (12b) communicated with the accommodating cavity (12 a);
the bearing piece (1121) is positioned in the connecting cavity (12b), and the outer surface of the bearing piece (1121) is movably connected with the inner surface of the connecting cavity (12b) in a contact manner;
the reset element (13) is arranged in the connecting cavity (12b), and two opposite ends of the reset element (13) are respectively abutted against the bottom ends of the bearing piece (1121) and the connecting cavity (12 b).
7. Clamping and positioning device according to claim 6, characterised in that said connection cavity (12b) is provided with a stop (12c) for limiting said abutment (1121) on an opening at the end of said housing (12).
8. Clamping and positioning device according to any one of claims 1 to 4, characterized in that a soft gasket (12d) is provided on the end of the housing (12) adjacent to the clamping portion (111).
9. A clamp positioning device according to any one of claims 1 to 4, characterized in that the housing (12) is provided as a separate body.
10. Clamping and positioning device according to claim 5, characterized in that the end of the connecting part (112) remote from the clamping part (111) is provided with a radially extending annular projection (1122).
11. A needle placement device using the holding and positioning device of any one of claims 1 to 10, comprising: a clamping and positioning device (1), a puncture needle (2) and a guide sleeve (3);
the clamping head (11) of the clamping and positioning device (1) is used for clamping the puncture needle (2);
the guide sleeve (3) is provided with a guide channel (31) for the puncture needle (2) to pass through.
12. The needle placement device according to claim 11, characterized in that the puncture needle (2) is provided with graduations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120620385.7U CN215228217U (en) | 2021-03-26 | 2021-03-26 | Clamping and positioning device and needle placing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120620385.7U CN215228217U (en) | 2021-03-26 | 2021-03-26 | Clamping and positioning device and needle placing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215228217U true CN215228217U (en) | 2021-12-21 |
Family
ID=79505981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120620385.7U Active CN215228217U (en) | 2021-03-26 | 2021-03-26 | Clamping and positioning device and needle placing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215228217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116115317A (en) * | 2023-04-04 | 2023-05-16 | 北京爱康宜诚医疗器材有限公司 | Bending bone round needle clamping device |
-
2021
- 2021-03-26 CN CN202120620385.7U patent/CN215228217U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116115317A (en) * | 2023-04-04 | 2023-05-16 | 北京爱康宜诚医疗器材有限公司 | Bending bone round needle clamping device |
| CN116115317B (en) * | 2023-04-04 | 2023-06-06 | 北京爱康宜诚医疗器材有限公司 | Bending bone round needle clamping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101730837B (en) | Medical aligning device | |
| US9955929B2 (en) | Bite tray having fiducial markers for head scan registration and method of use | |
| JP4810698B1 (en) | Pedicle insertion instrument guide device | |
| CN215228217U (en) | Clamping and positioning device and needle placing device | |
| JPH02289249A (en) | Center-positioning device for implanting prosthetic femur axis at inner part of femur | |
| CN209253474U (en) | It is a kind of to can be used for hip joint and knee surgery sufferer carries out the body position fixing device of preoperative Postural immobilization | |
| KR100921407B1 (en) | Clamp for Registration of Bone Position and Surgical Robot by using the Same | |
| CN109803614A (en) | Device assembly for hip replacement surgery | |
| CN210931704U (en) | Lateral vertical positioning device for lumbar puncture needle insertion | |
| WO2018198119A1 (en) | Surgical drill guide tools | |
| JP2010069312A (en) | Insertion tool and insertion guide system | |
| CN210904676U (en) | Breast tumor positioning component and breast tumor positioning device | |
| US10034642B1 (en) | Wheel alignment guide for medical equipment and method of use | |
| CN111388080A (en) | Orthopedic parallel pressurizing positioner | |
| CN110461266B (en) | Alignment guide for acetabular implant surgery and method of use | |
| US10610174B1 (en) | Wheel alignment guide for medical equipment and method of use | |
| CN113940747B (en) | Positioning navigation device for bone channel of nail hole of orthopedic implant | |
| CN111493997B (en) | Guide device for assisting kirschner wire placement in PFN operation | |
| RU2678014C2 (en) | Kit for implantation of dental implant | |
| CN113226212B (en) | Guide and support for craniofacial compressions | |
| CN111870335A (en) | Kirschner wire positioning instrument for closed reduction of pelvic fracture | |
| CN209186880U (en) | X-ray guides Minimally Interventional Therapy localised puncture bracket | |
| CN215424927U (en) | Two guide pin locators with adjustable positioning angle | |
| CN204814101U (en) | Multi -functional B ultrasonic kidney puncture instrument | |
| JP7238145B2 (en) | Medical device for guidance of medical tools and method of construction thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |