CN107374744B - Universal medical instrument support with screwing and locking functions - Google Patents
Universal medical instrument support with screwing and locking functions Download PDFInfo
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- CN107374744B CN107374744B CN201710585751.8A CN201710585751A CN107374744B CN 107374744 B CN107374744 B CN 107374744B CN 201710585751 A CN201710585751 A CN 201710585751A CN 107374744 B CN107374744 B CN 107374744B
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000001356 surgical procedure Methods 0.000 description 5
- 238000002324 minimally invasive surgery Methods 0.000 description 4
- 230000002262 irrigation Effects 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B50/00—Containers, covers, furniture or holders specially adapted for surgical or diagnostic appliances or instruments, e.g. sterile covers
- A61B50/20—Holders specially adapted for surgical or diagnostic appliances or instruments
- A61B50/22—Racks
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/50—Supports for surgical instruments, e.g. articulated arms
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention belongs to the field of medical instruments, and particularly relates to a universal medical instrument support with a screwing and locking function, which comprises a first sleeve and a second sleeve, wherein the first sleeve is fixed with a first sleeve; a second sleeve is fixed on the second sleeve; cylindrical head screws are penetrated in the first sleeve and the second sleeve, and the cylindrical head screws are connected with a screwing handle; the cylindrical head screw is provided with a second threaded hole, and the second threaded hole is connected with a positioning screw; a second shaft rod is arranged in the second sleeve in a penetrating way, a first wedge-shaped surface is arranged on the second shaft rod, a second wedge-shaped surface is arranged on the cylindrical head screw, and the second wedge-shaped surface is attached to the first wedge-shaped surface; the second sleeve is provided with a second ball joint, and the second shaft rod is propped against the ball of the second ball joint; fixed on the ball head there is an instrument chuck. The beneficial effects of the invention are as follows: the invention reduces the workload of doctors, improves the working efficiency of the doctors, avoids shaking caused by manual hand-holding of various instruments, and improves the stability and accuracy of the operation.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a universal medical instrument support with a screwing and locking function.
Background
In modern medical procedures, a number of advanced medical instruments and related equipment are added. Such as endoscope devices in minimally invasive surgery, irrigation tubes in surgery, and drag hooks, which are always troublesome for doctors, are held by auxiliary doctors in the current-stage surgery, and for long-term surgery, the auxiliary doctors need to hold one or more devices with hands and maintain a posture for a long time, and even more so for fixing endoscope systems in minimally invasive surgery, which increases a lot of difficulties for the doctors, increases the workload of the doctors, and more importantly, takes up the resources of an auxiliary doctor. The doctor can not fully play a role, a plurality of doctors are often needed to assist, the working efficiency of the doctor is reduced, the shake is avoided due to manual hand holding, so that the definition of an auxiliary image system in the whole operation, particularly in the minimally invasive operation, is greatly influenced, and the stability and the accuracy of the operation can not be improved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the universal medical instrument support with the screwing and locking functions, which reduces the workload of doctors, improves the working efficiency of the doctors, avoids shaking caused by manually holding each instrument, and improves the stability and the accuracy of operation.
The technical scheme adopted for solving the technical problems is as follows: a universal medical instrument support with a screwing and locking function comprises a first sleeve and a second sleeve, wherein a first sleeve is fixed at one end of the first sleeve, and a bed board chuck is arranged at the other end of the first sleeve; one end of the second sleeve is fixed with a second sleeve, the first sleeve and the second sleeve are coaxially arranged, and the central axis of the first sleeve is vertical to the central axis of the first sleeve; a cylindrical head screw is penetrated in a through hole formed by the first sleeve and the second sleeve, a nut of the cylindrical head screw is positioned in the second sleeve, the cylindrical head screw is in threaded connection with a screwing handle, and the screwing handle is arranged at one side close to the first sleeve; the screwing handle is provided with a step through hole on the central axis, a small diameter hole of the step through hole is close to the first sleeve, and the small diameter hole of the step through hole is a first threaded hole for connecting with a cylindrical head screw; the screw-in end surface of the cylindrical head screw is coaxially provided with a second threaded hole, the second threaded hole is in threaded connection with a positioning screw, a nut of the positioning screw is positioned in the large-diameter hole of the step through hole, and a gap for unscrewing the screw handle on the cylindrical head screw is arranged between the nut of the positioning screw and the step surface of the step through hole; the inner hole of the second sleeve is communicated with the barrel hole of the second sleeve, a second shaft rod is arranged in the inner hole of the second sleeve in a penetrating way, a first wedge-shaped surface is arranged at one end of the second shaft rod extending into the barrel hole of the second sleeve, the first wedge-shaped surface faces to the outside of the barrel hole of the second sleeve, a second wedge-shaped surface is arranged on a nut of the cylindrical head screw, and the second wedge-shaped surface is attached to the first wedge-shaped surface; the other end of the second sleeve is provided with a second ball joint, a ball seat of the second ball joint is communicated with a pipe hole of the second sleeve, and the other end of the second shaft abuts against a ball of the second ball joint; an instrument chuck is fixed on one surface of the ball head of the second ball head joint, which faces the outside of the ball seat.
By screwing the screwing handle, the cylindrical head screw is continuously screwed into the small diameter hole (the first threaded hole) of the step through hole, thereby causing the second wedge surface on the nut of the cylindrical head screw to be continuously pressed against the first wedge surface, thereby driving the second shaft to move away from one end of the first wedge-shaped surface and abutting against the ball of the second ball joint, thereby pressing the ball of the second ball joint. At this time, the ball of the second ball joint cannot freely rotate. On the contrary, when the screwing handle is in a unscrewing state, the ball head of the second ball head joint can freely rotate on the ball seat, at the moment, the medical instrument clamped by the instrument clamp can also rotate in all directions to adjust the position, and in the unscrewing state of the screwing handle, the angle between the first sleeve and the second sleeve can also be freely adjusted; can be used for universal rotation of endoscope equipment in minimally invasive surgery, irrigation tubes in surgery, drag hooks and other instruments. In the unscrewing process, a gap for unscrewing the screwing handle on the cylindrical head screw is formed between the nut of the positioning screw and the step surface of the step through hole, so that the screwing handle is limited by the nut of the positioning screw, and is not easy to fall off and is very convenient to unscrew and screw.
The instrument clamp can realize universal rotation, can lock all joints quickly by one key, can firmly fix instruments such as endoscope equipment in operation, a flushing pipe in operation, a drag hook and the like, and can be adjusted quickly by screwing a handle when the positions of related instruments are required to be adjusted. The invention has simple and stable mechanism, low cost, firmness and durability, solves the problem that a doctor is required to hold the medical observation endoscope and the problem of fixing some auxiliary medical instruments, reduces the workload of the doctor, improves the working efficiency of the doctor, avoids shaking caused by manually holding each instrument, improves the stability and the accuracy of the operation, and reduces the operation time.
Specifically, an inner hole of the first sleeve is communicated with the first sleeve, a first shaft lever is penetrated in the inner hole of the first sleeve, a third wedge surface is arranged at one end of the first shaft lever extending into a barrel hole of the first sleeve, the third wedge surface faces to the outside of the barrel hole of the first sleeve, a middle cylinder sleeve is sleeved on a threaded section of the cylindrical head screw, the middle cylinder sleeve is positioned in the first sleeve, and the bottom surface at the central position of the screwing handle is pressed on the middle cylinder sleeve; the middle cylinder sleeve is provided with a fourth wedge-shaped surface, and the fourth wedge-shaped surface is attached to the third wedge-shaped surface; the other end of the first sleeve is provided with a first ball joint, a ball seat of the first ball joint is communicated with a pipe hole of the first sleeve, and the other end of the first shaft lever is abutted against a ball head of the first ball joint; a fixing rod is fixed on one surface of the ball head of the first ball joint, which faces to the outside of the ball seat, and the bed board chuck is arranged on the fixing rod.
Similarly, in the screwing state of the screwing handle, the fourth wedge-shaped surface on the middle cylinder sleeve is pressed against the third wedge-shaped surface; the first shaft rod is driven to move towards one end far away from the third wedge-shaped surface and abuts against the ball head of the first ball joint, so that the ball head of the first ball joint is pressed. At this time, the ball head of the first ball head joint cannot rotate freely, the fixing rod is also fixed on a headboard or a bedside board of a sickbed through the bedplate chuck, and meanwhile, the included angle between the fixing rod and the first sleeve is also fixed. When the screwing handle is in a unscrewing state, the first sleeve can also freely rotate around the ball center of the first ball joint, so that the selection of the rotation direction is further increased, the position of the medical instrument clamped by the instrument clamp is more favorably and properly adjusted, the stability and the accuracy of the operation are further improved, and the operation time is reduced.
Further, a stepped through hole is formed in the ball seat of the first ball joint, a small-diameter hole of the stepped through hole is sleeved in a first sleeve, a first annular groove is formed in the outer circle surface of the end part of the first sleeve, which is arranged in the stepped through hole, a first clamp spring is sleeved in the first annular groove, the first clamp spring is arranged in a large-diameter hole of the stepped through hole, and the outer diameter of the first clamp spring is larger than the small-diameter hole of the stepped through hole; the ball head of the first ball head joint is arranged in the large-diameter hole of the stepped through hole, a second annular groove is formed in the inner wall of the large-diameter hole of the stepped through hole, a second clamping spring is arranged in the second annular groove, and the inner diameter of the second clamping spring is smaller than the diameter of the ball head of the first ball head joint.
When in installation, the first sleeve is sleeved on the first shaft rod, then the first clamp spring is sleeved in the first annular groove on the first sleeve to form a shaft sleeve assembly, and then the shaft sleeve assembly is penetrated from the large-diameter hole of the stepped through hole and penetrates from the small-diameter hole; meanwhile, as the outer diameter of the first clamp spring is larger than the diameter of the small-diameter hole of the stepped through hole, the shaft sleeve assembly is clamped in the stepped through hole by the first clamp spring. Then, the ball head of the first ball joint is penetrated from the large-diameter hole of the stepped through hole and is abutted against the end part of the first shaft rod in the ball seat, and then the second clamp spring is arranged in the second annular groove, so that the ball head of the first ball joint is limited in the ball seat, and finally the first ball joint is formed. Similarly, the second ball joint is installed and arranged equally, the structure is simple, the connection is detachable, the connection is firm, and the disassembly and the assembly are convenient.
Further, a U-shaped through groove is formed in the side wall of the ball seat of the first ball joint; a first connecting rod is fixed on the ball head of the first ball joint, the first connecting rod is coaxially connected with a fixing rod in a threaded manner, the diameter of the first connecting rod is smaller than the groove width of the U-shaped through groove, and the opening gap of the second clamp spring is larger than the groove width of the U-shaped through groove; the U-shaped through groove facilitates the first shaft lever to rotate to the 90-degree direction, the rotation range is further enlarged, the position adjustment range of the medical instrument clamped by the instrument clamp is larger, and the adjustment is finer. The first connecting rod is in threaded connection with the fixing rod, so that the dismounting is more convenient.
Specifically, the bed board chuck comprises a chuck seat, a rod hole penetrates through the chuck seat, a fixed rod penetrates through the rod hole, the inner wall of the rod hole is communicated to the outside of one side of the chuck seat through a clearance through groove, and the clearance through groove is formed along a rod Kong Tongchang; the bottom of the clamping seat is provided with a first clamping through groove, the groove bottom of the first clamping through groove is parallel to the groove wall of the clearance through groove, one side groove wall of the first clamping through groove is penetrated and connected with a first threaded handle in a threaded manner, and a first pressing plate is vertically fixed at the end part of the first threaded handle in the first clamping through groove; the top of the clamping seat is penetrated with a second threaded handle which vertically penetrates through the groove walls at the two sides of the clearance through groove into the clamping seat. When adjusting the position, the dead lever can slide in the pole hole when reaching appointed position, then screw the second screw thread handle to fix the holder on the dead lever, screw first screw thread handle this moment, press the bed board in the clearance through the groove through first clamp plate pressfitting, thereby be fixed in on the sick bed with dead lever and bed board chuck, the preliminary installation adjustment of being convenient for of lateral removal, it is more convenient to use.
Specifically, the gasket is clamped between the bottom surface of the center position of the screwing handle and the middle cylinder sleeve, so that the stress is uniform, and the rotation friction can be reduced.
Specifically, a spring is sleeved on the threaded section of the cylindrical head screw and clamped between the first sleeve and the second sleeve; when the handle is screwed to adjust the middle release force of the bracket, the elastic force of the spring can be more linear through unscrewing, so that the pipes and the fixed rods can not suddenly fall down when the handle is unscrewed, and people or equipment is injured by smashing.
Further, grooves are formed in opposite surfaces of the first sleeve and the second sleeve, and the springs are clamped in cavities formed by the two grooves; the installation is more convenient, and the spring is convenient to firmly clamp.
Specifically, be fixed with the second connecting rod on the bulb of second bulb joint, second connecting rod threaded connection apparatus chuck is equipped with the second centre gripping on the apparatus chuck and leads to the groove, runs through and threaded connection has the third screw thread handle on the one side cell wall of second centre gripping through the groove, and the tip that the third screw thread handle is located the second centre gripping through the inslot is fixed with the second clamp plate perpendicularly. By screwing the third threaded handle, medical instruments such as endoscope equipment in the fixed operation, a flushing pipe in the operation, a drag hook and the like are stably fixed in the second clamping through groove through the second pressing plate, and the device is convenient to assemble and disassemble and firm to install.
In summary, the invention can rotate and move the medical instrument clamped on the instrument clamp in any direction, and can quickly lock the mechanical arm support of all joints by screwing one screwing handle, and the support can stably fix the medical instrument in operation after locking, and can quickly and linearly and slowly loosen all joints by one screwing handle when the position needs to be adjusted.
The universal medical instrument support with the screwing and locking functions has the beneficial effects that:
1. the instrument clamp can realize universal rotation, can lock all joints quickly by one key, can firmly fix instruments such as endoscope equipment in operation, a flushing pipe in operation, a drag hook and the like, and can be adjusted quickly by screwing a handle when the positions of related instruments are required to be adjusted;
2. the invention has simple and stable mechanism, low cost, firmness and durability, solves the problem that a doctor is required to hold the medical observation endoscope and the problem of fixing some auxiliary medical instruments, reduces the workload of the doctor, improves the working efficiency of the doctor, avoids shaking caused by manually holding each instrument, improves the stability and the accuracy of the operation, and reduces the operation time.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a three-dimensional schematic illustration of a universal medical device holder with screw locking function according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged partial view of portion B of FIG. 2;
FIG. 4 is an enlarged partial view of portion C of FIG. 3;
FIG. 5 is a schematic three-dimensional view of a universal medical device holder with screw locking function according to the present invention;
FIG. 6 is a sectional view D-D of FIG. 5;
FIG. 7 is a cross-sectional view E-E of FIG. 5;
FIG. 8 is a front view of a tee of a first ball joint of a universal medical device holder with a screw locking function of the present invention;
FIG. 9 is a cross-sectional view of F-F in FIG. 8;
FIG. 10 is a three-dimensional schematic view of a twist grip of a universal medical device holder with twist-lock functionality of the present invention;
FIG. 11 is a three-dimensional schematic view of a middle cylindrical sleeve of a universal medical device holder with screw locking function of the present invention;
FIG. 12 is a three-dimensional schematic view of a cylindrical head screw of a universal medical device holder with screw locking function of the present invention;
fig. 13 is a three-dimensional schematic view of a second shaft of a universal medical device holder with screw locking function according to the present invention.
1, a first sleeve, 101, a first annular groove; 2. a second sleeve; 3. a first sleeve; 4. the clamping plate comprises a clamping head of a bed plate, a clamping seat, a clearance through groove, a first clamping through groove, a first threaded handle, a first pressing plate and a second threaded handle, wherein the clamping head of the bed plate is 401, the clamping seat is 402, the clearance through groove is 403, the first threaded handle is 404, the first pressing plate is 406; 5. a second sleeve; 6. cylindrical head screw 601. Second threaded hole 602. Second wedge face; 7. screwing the handle 701, namely a step through hole; 8. a set screw; 9. a second shaft 901; 10. a second ball joint 1001; 11. instrument chuck 1101, second clamping through slot 1102, third threaded handle 1103, second pressure plate; 12. a first shaft, 1201 a third wedge; 13. a fourth wedge-shaped surface; 14. the first ball joint 1401, the stepped through hole 1402, the second annular groove 1403, the U-shaped through groove 1404 and the first connecting rod; 15. a fixed rod; 16. a first clamp spring; 17. a second clamp spring; 18. a gasket; 19. and (3) a spring.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
The embodiment of the universal medical instrument support with the screwing and locking functions, shown in fig. 1-13, comprises a first sleeve 1 and a second sleeve 2, wherein a first sleeve 3 is fixed at one end of the first sleeve 1, and a bed plate chuck 4 is arranged at the other end of the first sleeve 1; one end of the second sleeve 2 is fixed with a second sleeve 5, the first sleeve 3 and the second sleeve 5 are coaxially arranged, and the central axis of the first sleeve 3 is vertical to the central axis of the first sleeve 1; a cylindrical head screw 6 is arranged in a through hole formed by the first sleeve 3 and the second sleeve 5 in a penetrating way, a nut of the cylindrical head screw 6 is positioned in the second sleeve 5, the cylindrical head screw 6 is connected with a screwing handle 7 in a threaded way, and the screwing handle 7 is arranged on one side close to the first sleeve 3; the screwing handle 7 is provided with a step through hole 701 on the central axis, the small diameter hole of the step through hole 701 is close to the first sleeve 1, and the small diameter hole of the step through hole 701 is a first threaded hole for connecting with the cylindrical head screw 6; a second threaded hole 601 is coaxially formed in the screwing end face of the cylindrical head screw 6, the second threaded hole 601 is in threaded connection with a positioning screw 8, a nut of the positioning screw 8 is positioned in a large-diameter hole of the step through hole 701, and a gap for unscrewing the screwing handle 7 on the cylindrical head screw 6 is formed between the nut of the positioning screw 8 and the step surface of the step through hole 701; the inner hole of the second sleeve 2 is communicated with the barrel hole of the second sleeve 5, a second shaft rod 9 is penetrated in the inner hole of the second sleeve 2, a first wedge-shaped surface 901 is arranged at one end of the second shaft rod 9 extending into the barrel hole of the second sleeve 5, the first wedge-shaped surface 901 faces out of the barrel hole of the second sleeve 5, a second wedge-shaped surface 602 is arranged on a nut of the cylindrical head screw 6, and the second wedge-shaped surface 602 is attached to the first wedge-shaped surface 901; the other end of the second sleeve 2 is provided with a second ball joint 10, a ball seat of the second ball joint 10 is communicated with a pipe hole of the second sleeve 2, and the other end of the second shaft 9 is abutted against the ball head of the second ball joint 10; an instrument chuck 11 is fixed on one surface of the ball of the second ball joint 10 facing the outside of the ball seat.
By screwing the screwing handle 7, the cylindrical head screw 6 is continuously screwed into the small diameter hole (first threaded hole) of the stepped through hole 701, so that the second wedge surface 602 on the nut of the cylindrical head screw 6 is continuously pressed against the first wedge surface 901, and the second shaft 9 is driven to move towards the end far from the first wedge surface 901 and against the ball head of the second ball joint 10, so that the ball head of the second ball joint 10 is pressed. At this time, the ball of the second ball-joint 10 cannot freely rotate. On the contrary, when the screwing handle 7 is in a unscrewed state, the ball head of the second ball joint 10 can freely rotate on the ball seat, at the moment, the medical instrument clamped by the instrument clamp 11 can also rotate in all directions to adjust the position, and in the unscrewed state of the screwing handle 7, the angle between the first sleeve 1 and the second sleeve 2 can also be freely adjusted; can be used for universal rotation of endoscope equipment in minimally invasive surgery, irrigation tubes in surgery, drag hooks and other instruments. In the unscrewing process, a gap for unscrewing the screwing handle 7 on the cylindrical head screw 6 is arranged between the nut of the positioning screw 8 and the step surface of the step through hole 701, so that the screwing handle 7 is limited by the nut of the positioning screw 8, and is not easy to fall off and is convenient to unscrew and screw.
The device clamp 11 of the embodiment can realize universal rotation, can lock all joints by one key quickly, can firmly fix devices such as endoscope equipment in operation, a flushing pipe in operation, a drag hook and the like, and can be adjusted quickly by only screwing the handle 7 when the positions of related devices are required to be adjusted. The embodiment has simple and stable mechanism, low cost, firmness and durability, solves the problem that a doctor is required to hold the medical observation endoscope and the problem of fixing some auxiliary medical instruments, reduces the workload of the doctor, improves the working efficiency of the doctor, avoids shaking caused by manually holding each instrument, improves the stability and the accuracy of the operation, and reduces the operation time.
Specifically, an inner hole of the first sleeve 1 is communicated with the first sleeve 3, a first shaft lever 12 is arranged in the inner hole of the first sleeve 1 in a penetrating way, a third wedge surface 1201 is arranged at one end of the first shaft lever 12 extending into a barrel hole of the first sleeve 3, the third wedge surface 1201 faces to the outside of the barrel hole of the first sleeve 3, a middle cylinder sleeve 13 is sleeved on a thread section of the cylindrical head screw 6, the middle cylinder sleeve 13 is positioned in the first sleeve 3, and the bottom surface at the central position of the screwing handle 7 is pressed on the middle cylinder sleeve 13; a fourth wedge-shaped surface 1301 is arranged on the middle cylinder sleeve 13, and the fourth wedge-shaped surface 1301 is attached to the third wedge-shaped surface 1201; the other end of the first sleeve 1 is provided with a first ball joint 14, a ball seat of the first ball joint 14 is communicated with a pipe hole of the first sleeve 1, and the other end of the first shaft rod 12 is abutted against the ball head of the first ball joint 14; a fixing rod 15 is fixed on one surface of the ball head of the first ball joint 14 facing the outside of the ball seat, and the bed board clamping head 4 is arranged on the fixing rod 15.
Similarly, in the screwed state of the screwing handle 7, the fourth wedge 1301 of the middle cylinder cover 13 is also pressed against the third wedge 1201; the first shaft 12 is driven to move toward the end remote from the third wedge surface 1201 and against the ball of the first ball-end joint 14, thereby compressing the ball of the first ball-end joint 14. At this time, the ball of the first ball joint 14 cannot rotate freely, the fixing rod 15 is also fixed on the headboard or bedside board of the sickbed through the bedplate chuck 4, and meanwhile, the included angle between the fixing rod 15 and the first sleeve 1 is also fixed. When the screwing handle 7 is in a unscrewed state, the first sleeve 1 can also freely rotate around the ball center of the first ball joint 14, so that the selection of the rotation direction is further increased, the position of the medical instrument clamped by the instrument clamp 11 is more favorably and properly adjusted, the stability and the accuracy of the operation are further improved, and the operation time is reduced.
Further, a stepped through hole 1401 is arranged in the ball seat of the first ball joint 14, a small diameter hole of the stepped through hole 1401 is sleeved in the first sleeve 1, a first annular groove 101 is formed in the outer circular surface of the end part of the first sleeve 1, which is arranged in the stepped through hole 1401, a first clamping spring 16 is sleeved in the first annular groove 101, the first clamping spring 16 is arranged in a large diameter hole of the stepped through hole 1401, and the outer diameter of the first clamping spring 16 is larger than the diameter of the small diameter hole of the stepped through hole 1401; the ball of the first ball joint 14 is arranged in the large-diameter hole of the stepped through hole 1401, a second annular groove 1402 is formed in the inner wall of the large-diameter hole of the stepped through hole 1401, a second clamping spring 17 is arranged in the second annular groove 1402, and the inner diameter of the second clamping spring 17 is smaller than the diameter of the ball of the first ball joint 14.
When in installation, the first sleeve 1 is sleeved on the first shaft rod 12, then the first clamp spring 16 is sleeved in the first annular groove 101 on the first sleeve 1 to form a shaft sleeve assembly, and then the shaft sleeve assembly is penetrated from a large-diameter hole of the stepped through hole 1401 and penetrates from a small-diameter hole; meanwhile, since the outer diameter of the first clamp spring 16 is larger than the diameter of the small-diameter hole of the stepped through hole 1401, the first clamp spring 16 clamps the shaft sleeve assembly in the stepped through hole 1401. Then, the ball of the first ball joint 14 is inserted through the large diameter hole of the stepped through hole 1401 and abuts against the end of the first shaft 12 in the ball seat, and then the second clamp spring 17 is arranged in the second annular groove 1402, so that the ball of the first ball joint 14 is limited in the ball seat, and finally the first ball joint 14 is formed. Similarly, the second ball joint 10 is installed and arranged in the same way, and has the advantages of simple structure, detachable connection, firm connection and convenient disassembly and assembly.
Further, a U-shaped through groove 1403 is arranged on the side wall of the ball seat of the first ball joint 14; a first connecting rod 1404 is fixed on the ball of the first ball joint 14, the first connecting rod 1404 is coaxially connected with the fixed rod 15 in a threaded manner, the diameter of the first connecting rod 1404 is smaller than the groove width of the U-shaped through groove 1403, and the opening gap of the second clamp spring 17 is larger than the groove width of the U-shaped through groove 1403; the U-shaped through groove 1403 facilitates the rotation of the first shaft 12 to a 90 ° orientation, further increasing the rotation range, and the position adjustment range of the medical instrument clamped by the instrument clamp 11 is larger and finer. The first connecting rod 1404 is in threaded connection with the fixed rod 15, so that the disassembly and assembly are more convenient.
Specifically, the bed board chuck 4 comprises a chuck 401, a rod hole penetrates through the chuck 401, a fixed rod 15 penetrates through the rod hole, the inner wall of the rod hole is communicated to the outside of one side of the chuck 401 through a clearance through groove 402, and the clearance through groove 402 is formed along a rod Kong Tongchang; the bottom of the clamping seat 401 is provided with a first clamping through groove 403, the groove bottom of the first clamping through groove 403 is parallel to the groove wall of the clearance through groove 402, one side groove wall of the first clamping through groove 403 is penetrated and connected with a first threaded handle 404 in a threaded manner, and a first pressing plate 405 is vertically fixed at the end part of the first threaded handle 404 positioned in the first clamping through groove 403; a second threaded handle 406 is arranged on the top of the clamping seat 401 in a penetrating way, and the second threaded handle 406 vertically penetrates through two groove walls of the clearance through groove 402 to the clamping seat 401. When the position is adjusted, the fixing rod 15 can slide in the rod hole to reach the designated position, and then the second threaded handle 406 is screwed, so that the clamp seat 401 is fixed on the fixing rod 15, at the moment, the first threaded handle 404 is screwed, the bed plate is pressed in the clearance through groove 402 through the first pressing plate 405, so that the fixing rod 15 and the bed plate clamp head 4 are fixed on a patient bed, the transverse movement is convenient for preliminary installation and adjustment, and the use is more convenient.
Specifically, a gasket 18 is clamped between the bottom surface of the center position of the screwing handle 7 and the middle cylinder sleeve 13, so that the stress is uniform, and the rotation friction can be reduced.
Specifically, a spring 19 is sleeved on the threaded section of the cylindrical head screw 6, and the spring 19 is clamped between the first sleeve 3 and the second sleeve 5; when the handle 7 is screwed to adjust the middle release force of the bracket, the elastic force of the spring 19 can be more linear through unscrewing, so that the pipes and the fixed rod 15 can not suddenly drop down when the handle 7 is unscrewed, and people or equipment can not be injured by smashing.
Further, grooves are formed on opposite surfaces of the first sleeve 3 and the second sleeve 5, and the spring 19 is clamped in a cavity formed by the two grooves; the installation is more convenient, and the spring 19 is convenient to firmly clamp.
Specifically, a second connecting rod 1001 is fixed on the ball of the second ball joint 10, the second connecting rod 1001 is in threaded connection with an instrument chuck 11, a second clamping through groove 1101 is formed in the instrument chuck 11, a third threaded handle 1102 is penetrated through and in threaded connection with a groove wall on one side of the second clamping through groove 1101, and a second pressing plate 1103 is vertically fixed at the end part of the third threaded handle 1102 located in the second clamping through groove 1101. By screwing the third screw handle 1102, the medical devices such as the endoscope device during the fixation operation, the flushing tube during the operation, the retractor and the like are stably fixed in the second clamping through groove 1101 by the second pressing plate 1103, and the second clamping through groove 1101 is convenient to assemble and disassemble and firm to install.
In summary, the medical device clamped on the device clamp 11 can be rotated and moved in any direction, and the mechanical arm support of all joints can be quickly locked only by screwing one screwing handle 7, and the medical device in operation can be stably fixed by the support after locking, so that all joints can be quickly and linearly and slowly released by one screwing handle 7 when the position needs to be adjusted.
It should be understood that the above-described specific embodiments are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications which extend from the spirit of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a universal medical instrument support with locking function of screwing which characterized in that: the novel bed board clamping device comprises a first sleeve (1) and a second sleeve (2), wherein a first sleeve (3) is fixed at one end of the first sleeve (1), and a bed board clamping head (4) is arranged at the other end of the first sleeve (1); a second sleeve (5) is fixed at one end of the second sleeve (2), the first sleeve (3) and the second sleeve (5) are coaxially arranged, and the central axes of the first sleeve (3) and the first sleeve (1) are vertical; a cylindrical head screw (6) is arranged in a through hole formed by the first sleeve (3) and the second sleeve (5) in a penetrating way, a nut of the cylindrical head screw (6) is positioned in the second sleeve (5), the cylindrical head screw (6) is connected with a screwing handle (7) in a threaded way, and the screwing handle (7) is arranged on one side close to the first sleeve (3); the screwing handle (7) is provided with a step through hole (701) on the central axis, a small-diameter hole of the step through hole (701) is close to the first sleeve (1), and the small-diameter hole of the step through hole (701) is a first threaded hole for connecting with the cylindrical head screw (6); a second threaded hole (601) is coaxially formed in the screwed end face of the cylindrical head screw (6), the second threaded hole (601) is in threaded connection with a positioning screw (8), a nut of the positioning screw (8) is positioned in a large-diameter hole of the step through hole (701), and a gap for unscrewing a screwing handle (7) on the cylindrical head screw (6) is formed between the nut of the positioning screw (8) and the step surface of the step through hole (701); the inner hole of the second sleeve (2) is communicated with the barrel hole of the second sleeve (5), a second shaft rod (9) is penetrated in the inner hole of the second sleeve (2), one end of the second shaft rod (9) extending into the barrel hole of the second sleeve (5) is provided with a first wedge surface (901), the first wedge surface (901) faces out of the barrel hole of the second sleeve (5), a second wedge surface (602) is arranged on a nut of the cylindrical head screw (6), and the second wedge surface (602) is attached to the first wedge surface (901); the other end of the second sleeve (2) is provided with a second ball joint (10), a ball seat of the second ball joint (10) is communicated with a pipe hole of the second sleeve (2), and the other end of the second shaft (9) is abutted against a ball of the second ball joint (10); an instrument chuck (11) is fixed on one surface of the ball head of the second ball joint (10) facing the outside of the ball seat;
the inner hole of the first sleeve (1) is communicated with the first sleeve (3), a first shaft lever (12) is arranged in the inner hole of the first sleeve (1) in a penetrating mode, one end, extending into a barrel hole of the first sleeve (3), of the first shaft lever (12) is provided with a third wedge surface (1201), the third wedge surface (1201) faces out of the barrel hole of the first sleeve (3), a middle cylinder sleeve (13) is sleeved on a threaded section of the cylindrical head screw (6), the middle cylinder sleeve (13) is positioned in the first sleeve (3), and the bottom surface of the center position of the screwing handle (7) is pressed on the middle cylinder sleeve (13); a fourth wedge-shaped surface (1301) is arranged on the middle cylinder sleeve (13), and the fourth wedge-shaped surface (1301) is attached to the third wedge-shaped surface (1201); the other end of the first sleeve (1) is provided with a first ball joint (14), a ball seat of the first ball joint (14) is communicated with a pipe hole of the first sleeve (1), and the other end of the first shaft lever (12) is abutted against the ball head of the first ball joint (14); a fixing rod (15) is fixed on one surface of the ball head of the first ball joint (14) facing the outside of the ball seat, and the bed board clamping head (4) is arranged on the fixing rod (15);
the ball of the second ball joint (10) is fixedly provided with a second connecting rod (1001), the second connecting rod (1001) is in threaded connection with an instrument chuck (11), a second clamping through groove (1101) is formed in the instrument chuck (11), one side groove wall of the second clamping through groove (1101) is penetrated and is in threaded connection with a third threaded handle (1102), and the end part of the third threaded handle (1102) located in the second clamping through groove (1101) is vertically fixedly provided with a second pressing plate (1103).
2. The universal medical device holder with screw locking function according to claim 1, wherein: a stepped through hole (1401) is formed in a ball seat of the first ball joint (14), a small-diameter hole of the stepped through hole (1401) is sleeved in a first sleeve (1), a first annular groove (101) is formed in the outer circular surface of the end part of the first sleeve (1) in the stepped through hole (1401), a first clamp spring (16) is sleeved in the first annular groove (101), the first clamp spring (16) is arranged in a large-diameter hole of the stepped through hole (1401), and the outer diameter of the first clamp spring (16) is larger than the small-diameter hole of the stepped through hole (1401); the ball head of the first ball joint (14) is arranged in a large-diameter hole of the stepped through hole (1401), a second annular groove (1402) is formed in the inner wall of the large-diameter hole of the stepped through hole (1401), a second clamping spring (17) is arranged in the second annular groove (1402), and the inner diameter of the second clamping spring (17) is smaller than that of the ball head of the first ball joint (14).
3. A universal medical device holder with screw locking function according to claim 2, characterized in that: a U-shaped through groove (1403) is formed in the side wall of the ball seat of the first ball joint (14); a first connecting rod (1404) is fixed on a ball head of the first ball joint (14), the first connecting rod (1404) is coaxially connected with a fixing rod (15) in a threaded mode, the diameter of the first connecting rod (1404) is smaller than the groove width of the U-shaped through groove (1403), and the opening gap of the second clamp spring (17) is larger than the groove width of the U-shaped through groove (1403).
4. The universal medical device holder with screw locking function according to claim 1, wherein: the bed board clamping head (4) comprises a clamping seat (401), a rod hole is penetrated through the clamping seat (401), the fixed rod (15) is penetrated in the rod hole, the inner wall of the rod hole is communicated to the outside of one side of the clamping seat (401) through a clearance through groove (402), and the clearance through groove (402) is arranged along a rod Kong Tongchang; the bottom of the clamping seat (401) is provided with a first clamping through groove (403), the groove bottom of the first clamping through groove (403) is parallel to the groove wall of the clearance through groove (402), one side groove wall of the first clamping through groove (403) is penetrated and connected with a first threaded handle (404) in a threaded manner, and a first pressing plate (405) is vertically fixed at the end part of the first threaded handle (404) in the first clamping through groove (403); the top of the clamping seat (401) is provided with a second threaded handle (406) in a penetrating mode, and the second threaded handle (406) vertically penetrates through two side groove walls of the clearance through groove (402) to the clamping seat (401).
5. The universal medical device holder with screw locking function according to claim 1, wherein: a gasket (18) is clamped between the bottom surface of the center position of the screwing handle (7) and the middle cylinder sleeve (13).
6. The universal medical device holder with screw locking function according to claim 1, wherein: a spring (19) is sleeved on the threaded section of the cylindrical head screw (6), and the spring (19) is clamped between the first sleeve (3) and the second sleeve (5).
7. The universal medical device holder with screw locking function according to claim 6, wherein: grooves are formed in opposite surfaces of the first sleeve (3) and the second sleeve (5), and the springs (19) are clamped in cavities formed by the two grooves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710585751.8A CN107374744B (en) | 2017-07-18 | 2017-07-18 | Universal medical instrument support with screwing and locking functions |
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| CN201710585751.8A CN107374744B (en) | 2017-07-18 | 2017-07-18 | Universal medical instrument support with screwing and locking functions |
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| CN107374744B true CN107374744B (en) | 2023-11-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108088355A (en) * | 2018-01-26 | 2018-05-29 | 浙江雄鹰科菲帝科技股份有限公司 | A kind of measuring device for being used to measure table slide |
| CN108904208B (en) * | 2018-07-23 | 2021-02-23 | 玉林市好邦医疗设备有限责任公司 | Universal joint arm hand rest |
| CN110063799B (en) * | 2019-04-26 | 2024-06-11 | 张宗恒 | Percutaneous spinal endoscope auxiliary controller |
| CN112370192B (en) * | 2020-11-13 | 2022-06-07 | 山东威高骨科材料股份有限公司 | Universal locking support for operation |
| CN112716622A (en) * | 2020-12-28 | 2021-04-30 | 张家港市华新医疗器械厂 | Universal fixer |
| CN112641521B (en) * | 2020-12-31 | 2022-03-25 | 中南大学湘雅三医院 | Multi-joint endoscope supporting system |
| CN113813055A (en) * | 2021-09-23 | 2021-12-21 | 上海卓昕医疗科技有限公司 | Connecting piece and positioner |
| CN114631901B (en) * | 2022-03-22 | 2022-08-16 | 德美德(青岛)医疗器械有限公司 | Multifunctional medical universal arm |
| CN115414215B (en) * | 2022-10-31 | 2023-02-03 | 上海汇禾医疗器械有限公司 | Adjustable fixing support of human heart implantation instrument and use method |
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