CN111658165A

CN111658165A - Pistol type depth measuring ruler

Info

Publication number: CN111658165A
Application number: CN202010622864.2A
Authority: CN
Inventors: 严迪恒; 王翠; 居志杰; 叶树; 谈进; 甄伍凡; 李若城; 严忠良
Original assignee: Changzhou Dazon Medical Devices Co ltd
Current assignee: Changzhou Dazon Medical Devices Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-09-15

Abstract

The utility model relates to a pistol formula depth finding chi belongs to medical instrument technical field, it includes that depth finding chi body and slip cap locate the sleeve pipe on the depth finding chi body, the depth finding chi body includes scale and the probe of reciprocal anchorage, scale and probe equidirectional setting, be provided with the scale mark on the scale, the sleeve pipe is provided with the scale indicator block that is used for reading the scale interval towards the one end of scale, the fixed dead lever that is provided with on the sleeve pipe, be provided with the depth finding device between dead lever and the scale, the pin joint has the actuating lever on the dead lever, actuating lever drive depth finding device promotes the removal of depth finding chi body along sheathed tube length direction. When this application has the degree of depth to the bone hole and measures, medical personnel one-hand operation can, easy operation's effect.

Description

Pistol type depth measuring ruler

Technical Field

The application relates to the technical field of medical equipment, in particular to a pistol type depth measuring ruler.

Background

At present, in clinical trauma orthopedics, the fixation of the fracture part is usually realized by adopting a steel plate, so that the depth of a bone hole of the fracture part needs to be measured so as to conveniently select a screw with proper length to fix the bone fracture plate, and the effective fixation of the bone fracture plate is difficult to realize if the screw is too long or too short.

Currently, the measurement of the depth of the bone hole is usually realized by a simple measuring ruler, and chinese patent No. CN209253162U discloses an orthopedic depth measuring ruler, which includes a sleeve and a probe body, the sleeve and the probe body are connected in a sleeved manner, the probe body passes through the sleeve and extends out from two ends of the sleeve, and the surface of the sleeve contacting with the bone is set to be a concave curved surface.

In the prior art, during fracture surgery, a hole is drilled at a fracture part, a proper depth measuring ruler is selected according to different fracture positions, the contact surface of the sleeve is abutted to the bone fracture plate, when the hook head of the measuring rod hooks the contact surface of the sleeve, namely the position is 0, and at the moment, the scale mark exposed at the first end of the sleeve of the scale rod is displayed as a value of 0. One hand holds the sleeve to enable the hook head to penetrate through a bone, the contact surface is in contact with one side of the bone, the other hand adjusts the extending length of the probe body until the hook head hooks the bone, then the numerical value of the scale mark exposed at the first end of the sleeve of the scale rod, namely the extending length of the hook head, is read, the length is the length between the bone fracture plate and the bottom of the bone hole, namely the length of the screw, and then the proper screw can be selected according to the length.

In view of the above related technologies, the inventor believes that there is a defect that when medical staff measures the screw depth, both hands are required to operate simultaneously, which is inconvenient to operate, and results in a final measurement result with a large error.

Disclosure of Invention

To the not enough that prior art exists, the purpose of this application is to provide a pistol depth gage, it has one-hand operation, effect easy and simple to handle.

The above application purpose of the present application is achieved by the following technical solutions:

the utility model provides a pistol formula depth finding chi, locates including depth finding chi body and slip cap sleeve pipe on the depth finding chi body, the depth finding chi body includes scale and the probe of reciprocal anchorage, scale and probe equidirectional setting, be provided with the scale mark on the scale, the sleeve pipe is provided with the scale instruction piece that is used for reading the scale interval towards the one end of scale, the fixed dead lever that is provided with on the sleeve pipe, be provided with the depth finding device between dead lever and the scale, the pin joint has the actuating lever on the dead lever, actuating lever drive depth finding device promotes the depth finding chi body and removes along sheathed tube length direction.

Through adopting above-mentioned technical scheme, when fracture operation, at the fracture position drilling earlier, medical personnel singlehanded grip on the dead lever, offset sleeve pipe and coaptation board, be 0 position promptly, the scale mark that exposes on the scale indicator block shows for 0 value this moment. Then the hand holding the fixed rod is used for operating the driving rod, the probe needle is extended into a hole drilled on the fracture through the depth measuring device, when the probe needle is extended into the bottom of the hole, the scale indicated by the scale indicating block is observed, the length is the length between the bone fracture plate and the bottom of the bone hole, namely the length value of the screw, and then the proper screw can be selected according to the length. When the depth of the bone hole is measured, the medical staff can operate the bone hole with one hand, and the operation is simple.

Preferably, the depth measuring device comprises a pushing assembly, and the pushing assembly comprises a pushing block and a pushing rod;

one end of the pushing block is clamped with the scale, and the other end of the pushing block is hinged with the fixed rod;

the end part of the driving rod facing the scale is sleeved with the pushing rod in a sliding manner, one end of the pushing rod is fixedly connected with the pushing block, and a supporting spring is arranged between the other end of the pushing rod and the fixing rod.

Through adopting above-mentioned technical scheme, when measuring the bone hole degree of depth, medical personnel handheld dead lever, through pointing control actuating lever, make the actuating lever can be round the axle swing of pin joint, when the actuating lever is towards the direction wobbling of dead lever, the actuating lever will be towards the direction swing of propelling movement piece towards the one end of scale, can be with the direction propelling movement of propelling movement piece towards the bone hole, because mutual joint between propelling movement piece and the scale, can drive the scale motion in the time of the motion of propelling movement piece, the scale drives the probe motion, can stretch into the probe inside the bone hole.

The supporting spring is arranged, so that the pushing block and the scale can be reliably clamped, and the pushing block can push the scale to move conveniently. When needing to reset the probe, drive the propelling movement pole, rotate the propelling movement piece round the articulated department of propelling movement piece and actuating lever, break away from the connection with propelling movement piece and scale, medical personnel can manually reset the scale.

Preferably, be provided with spacing spring between dead lever and the actuating lever, the actuating lever articulates towards the tip of scale has the spacing ring, the spacing ring cover is located on the scale.

Through adopting above-mentioned technical scheme, the setting of spacing ring, on the one hand, can carry on spacingly to the scale, reduces the scale and produces the phenomenon of rocking in the motion process, makes the scale can horizontal migration. On the other hand, when the direction swing of actuating lever towards the dead lever, the actuating lever can drive the direction swing of spacing ring towards the probe, the propelling movement piece can promote the scale towards the direction of probe, the actuating lever lasts the in-process towards the direction motion of dead lever, the spacing ring can rise and fix a position the scale, make and break away from between propelling movement piece and the scale to be connected, then when the actuating lever opposite direction swing, the propelling movement piece will carry out the joint with the scale, then the wobbling step of repeated actuating lever, can last the direction motion of scale towards the probe.

The setting of spacing spring can play the effect that the actuating lever of being convenient for resets, promptly, makes after the actuating lever can be towards the direction swing of dead lever, automatic re-setting towards the direction swing of keeping away from the dead lever, makes mutual joint between propelling movement piece and the scale.

Preferably, the depth measuring device further comprises a reset assembly, the reset assembly comprises a reset spring, and a first limit block and a second limit block which are positioned at two ends of the reset spring, the first limit block is fixed between the scale and the probe, and the second limit block is slidably sleeved in the length direction of the probe;

one end of the sleeve pipe, far away from the fixing rod, is in threaded connection with a fixing ring for limiting the second limiting block, and the fixing ring is sleeved on the length direction of the probe.

Through adopting above-mentioned technical scheme, when measuring the bone hole degree of depth, the scale moves towards the direction of probe, and reset spring will be compressed, when reseing to the scale, when breaking away from the joint between propelling movement piece and the scale, reset spring can promote the direction motion of first stopper towards the scale through the resilience force of self, can reset the scale.

The position of the second limiting block can be limited by the aid of the fixing ring, and the second limiting block can be matched with the first limiting block to limit the reset spring.

Preferably, the first limiting block extends towards one side of the second limiting block to be provided with a guide rod, and the reset spring is sleeved on the guide rod.

Through adopting above-mentioned technical scheme, the setting of guide bar, on the one hand, can be convenient for carry on spacingly to reset spring, if not set up the guide bar, spacing spring breaks away from the connection easily between with the probe needle. On the other hand, the guide rod can limit the compression direction of the spring, so that the return spring is not easy to wind.

Preferably, the first limiting block is provided with a collision bead, and the collision bead is connected with the inner wall of the sleeve in a sliding manner.

Through adopting above-mentioned technical scheme, when measuring the bone hole degree of depth, the scale moves towards the direction of probe, first stopper will with the sheathed tube inner wall between produce sliding friction, cushion reset spring's resilience force, slow down the sliding speed between sleeve pipe and the stopper to slow down the speed of reseing of scale.

Preferably, the end of the probe pin is provided with a fixing hook.

Through adopting above-mentioned technical scheme, the setting of fixed hook can be convenient for the probe needle in the measuring, colludes the skeleton through the fixed hook, then observes the scale mark to improve measuring precision.

Preferably, the scale indication block is arranged to be an inclined surface towards one surface far away from the fixed hook, and the inclined surface is arranged to be inclined towards the direction of the scale mark.

Through adopting above-mentioned technical scheme, the setting on inclined plane can be convenient for align scale mark and scale indication block to observe, reduce because the angle of reading the scale mark is different and the error that exists.

Preferably, the one side that first stopper was kept away from to the second stopper extends and is provided with spacing post, fixed ring towards fixed hook one end is worn to locate by spacing post.

Through adopting above-mentioned technical scheme, when measuring the bone hole degree of depth, wear to establish spacing post in the screw hole of coaptation board, then measure the bone hole to reliably be connected between sleeve pipe and the coaptation board, so that the measurement of bone hole.

Preferably, one side of the scale towards the pushing block is provided with a plurality of clamping teeth, and one end of the pushing block towards the scale is meshed with the clamping teeth.

Through adopting above-mentioned technical scheme, the setting of latch can be convenient for the propelling movement of propelling movement piece to the scale.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the fixed rod, the driving rod and the depth measuring device, when the depth of the bone hole is measured, a medical worker can operate the bone hole with one hand, and the effect of simple and convenient operation can be achieved;

2. through the arrangement of the limiting ring, the effect of facilitating the advance and reset of the scale can be achieved;

3. through the setting of scale instruction piece and inclined plane, can play the effect that reduces the reading deviation.

Drawings

Fig. 1 is a perspective view of a pistol-type depth gauge according to an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partial sectional structure diagram for showing the internal structure of the reduction assembly in the embodiment.

Fig. 4 is an enlarged schematic view of a portion B in fig. 3.

Fig. 5 is an enlarged schematic view of a portion C in fig. 3.

In the figure, 1, a depth gauge body; 11. a scale; 111. clamping teeth; 12. a probe pin; 121. a fixed hook; 13. scale lines; 2. a sleeve; 21. a scale indication block; 211. a bevel; 212. an observation tank; 3. fixing the rod; 31. mounting holes; 4. a drive rod; 5. a depth measurement device; 51. a push assembly; 511. a pushing block; 512. a push rod; 513. a limiting hole; 52. a reset assembly; 521. a return spring; 522. a first stopper; 523. a second limiting block; 524. a fixing ring; 525. a guide bar; 526. a limiting column; 6. a support spring; 7. a limiting spring; 8. a limiting ring; 9. and (4) bumping beads.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The application discloses a pistol formula depth finding chi, refer to fig. 1 and fig. 2, locate sleeve pipe 2 on depth finding chi body 1, with sleeve pipe 2 fixed connection's dead lever 3 and with the actuating lever 4 of 3 pin joints of dead lever including depth finding chi body 1, slip cap. The fixing rod 3 is provided with a mounting hole 31, the driving rod 4 is arranged in the mounting hole 31 in a penetrating way, and the driving rod 4 is hinged with the side wall of the mounting hole 31. The depth measuring ruler body 1 comprises a scale 11 and a probe 12 which are connected with each other, a scale mark 13 is arranged on the scale 11, a plurality of latch teeth 111 are arranged on one side, facing to a pushing block 511, of the scale 11, a fixing hook 121 is arranged at the end, far away from the scale 11, of the probe 12, and when the depth of a bone hole is measured, the fixing hook 121 is hooked on the bone to observe the scale of the scale 11. The sleeve 2 sets up scale indication block 21 towards the one end integral type of scale 11, and scale indication block 21 sets up to inclined plane 211 towards the one side of keeping away from probe 12, and inclined plane 211 sets up towards the direction slope of scale mark 13, has seted up observation groove 212 on inclined plane 211 to the number of scales of reading. When the scale on the scale 11 is read, the user can watch the end face of the indicating block far away from the probe 12 to align with the scale mark 13, and the scale mark 13 at the position is read, namely the measured length.

Referring to fig. 2 and 3, a depth measuring device 5 is disposed between the fixing rod 3 and the scale 11, the depth measuring device 5 includes a pushing component 51 and a resetting component 52, the pushing component 51 is disposed at a position of the scale 11 far away from the probe 12, and the resetting component 52 is disposed at a connection position of the scale 11 and the probe 12. The pushing assembly 51 comprises a pushing block 511 and a pushing rod 512, one end of the pushing block 511 is meshed with the latch 111 on the scale 11, the other end of the pushing block 511 extends into the mounting hole 31 and is hinged with two side walls of the mounting hole 31, and the pushing block 511 is located on one side, close to the probe 12, of the mounting hole 31. One end of the pushing rod 512 is fixedly connected with the pushing block 511, and a supporting spring 6 is arranged between the other end of the pushing rod 512 and the fixing rod 3, so that the pushing block 511 and the scale 11 can be reliably clamped. Seted up spacing hole 513 on push rod 512, wear to locate spacing hole 513 with actuating lever 4 towards the one end of scale 11 in, the one end that stretches out spacing hole 513 with actuating lever 4 articulates there is spacing

ring

8, and 8 covers of spacing ring are located on scale 11. A limiting spring 7 is arranged between the fixed rod 3 and the driving rod 4, and the supporting spring 6 and the limiting spring 7 are respectively positioned at two sides of the joint of the fixed rod 3 and the driving rod 4.

Referring to fig. 3, when measuring the bone hole degree of depth, medical personnel operate the axle swing of actuating lever 4 round the pin joint, and when actuating lever 4 swung towards the direction of dead lever 3, the one end that actuating lever 4 stretched out mounting groove 31 will swing towards the direction of propelling movement piece 511, can be with the direction propelling movement of propelling movement piece 511 towards the bone hole, because mutual joint between propelling movement piece 511 and the scale 11, can drive the motion of scale 11 when propelling movement piece 511 moves. In the process that the driving rod 4 continuously moves towards the direction of the fixing rod 3, the limiting ring 8 can lift and position the scale 11, so that the pushing block 511 is disconnected from the scale 11. When the driving rod 4 swings in the opposite direction, that is, the driving rod 4 automatically resets through the limiting spring 7, the driving rod 4 swings in the direction away from the fixing rod 3, the pushing block 511 and the scale 11 are clamped with each other, and then the step of swinging the driving rod 4 is repeated, so that the scale 11 can be continuously moved in the direction of the probe 12.

Referring to fig. 4 and 5, the reset assembly 52 includes a reset spring 521 and a first stopper 522 and a second stopper 523 located at two ends of the reset spring 521, the first stopper 522 extends towards one side of the second stopper 523 to form a guide rod 525, one end of the probe 12 facing the scale 11 is fixedly connected with the guide rod 525, the reset spring 521 is sleeved on the guide rod 525, one side of the second stopper 523 far away from the first stopper 522 extends to form a stopper 526, a fixing ring 524 is sleeved on the stopper 526, and the fixing ring 524 is in threaded connection with one end of the sleeve 2 far away from the fixing rod 3. The return spring 521 is limited by the first limiting block 522 and the second limiting block 523, and the second limiting block 523 is limited by the connection between the fixing ring 524 and the sleeve 2, so that the return spring 521 is further limited.

When reseing through reset spring 521, in order to reduce reset speed of reset spring 521, be provided with on first stopper 522 and bump pearl 9, bump pearl 9 and 2 inner walls sliding connection of sleeve pipe, cushion reset spring 521's resilience through bumping pearl 9, slow down the sliding speed between sleeve pipe 2 and the stopper to slow down scale 11's reset speed.

The implementation principle of the embodiment is as follows: during fracture operation, holes are drilled in the fracture part. When the bone hole depth is measured, firstly, the medical staff holds the fixing rod 3 with the palm, one end of the fixing ring 524, which is far away from the sleeve 2, is abutted against the bone fracture plate, namely, 0 position, and the scale mark 13 exposed on the scale indication block 21 shows a value of 0. Secondly, through finger control actuating lever 4, compress and loosen spacing spring 7, when exerting pressure to spacing spring 7 through actuating lever 4, actuating lever 4 swings towards the direction of dead lever 3 around the axle of pin joint, and when actuating lever 4 swung towards the direction of dead lever 3, actuating lever 4 orientation passed mounting hole 31 one end and will swing towards the direction of propelling movement piece 511, and spacing ring 8 can rise scale 11 and support scale 11, makes and breaks away from between propelling movement piece 511 and the scale 11 and be connected. Then, the limit spring 7 is loosened, namely the drive rod 4 is automatically reset through the resilience force of the limit spring 7, the drive rod 4 swings towards the direction far away from the fixed rod 3, at the moment, the scale 11 is not moved, the limit ring 8 moves towards the position far away from the probe 12, the push block 511 is meshed with the corresponding latch 111 of the scale 11 towards the position of the limit ring 8, and then the swing step of the drive rod 4 is repeated, so that the scale 11 can be intermittently pushed towards the direction of the probe 12. When the detection needle 12 is fixed on the hook 121 to hook the bone, the scale indicated by the scale indication block 21 is observed, the length is the length between the bone fracture plate and the bottom of the bone hole, namely the length value of the screw, and then the proper screw can be selected according to the length.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pistol formula depth finding chi, locates including depth finding chi body (1) and slip cap sleeve pipe (2) on the depth finding chi body (1), its characterized in that: the depth gauge body (1) comprises a scale (11) and a probe (12) which are fixed to each other, the scale (11) and the probe (12) are arranged in the same direction, scale marks (13) are arranged on the scale (11), a scale indicating block (21) used for reading scale values is arranged on the sleeve (2) towards one end of the scale (11), a fixing rod (3) is fixedly arranged on the sleeve (2), a depth measuring device (5) is arranged between the fixing rod (3) and the scale (11), a driving rod (4) is pivoted on the fixing rod (3), and the driving rod (4) drives the depth measuring device (5) to push the depth gauge body (1) to move along the length direction of the sleeve (2).

2. A pistol depth gauge according to claim 1, wherein: the depth measuring device (5) comprises a pushing assembly (51), wherein the pushing assembly (51) comprises a pushing block (511) and a pushing rod (512);

one end of the pushing block (511) is clamped with the scale (11), and the other end of the pushing block (511) is hinged with the fixing rod (3);

the end part of the driving rod (4) facing the scale (11) is sleeved with the push rod (512) in a sliding manner, one end of the push rod (512) is fixedly connected with the push block (511), and a supporting spring (6) is arranged between the other end of the push rod (512) and the fixing rod (3).

3. A pistol depth gauge according to claim 2, wherein: be provided with spacing spring (7) between dead lever (3) and actuating lever (4), actuating lever (4) have spacing ring (8) towards the tip of scale (11) is articulated, spacing ring (8) cover is located on scale (11).

4. A pistol depth gauge according to claim 2, wherein: the depth measuring device (5) further comprises a reset component (52), the reset component (52) comprises a reset spring (521) and a first limit block (522) and a second limit block (523) which are positioned at two ends of the reset spring (521), the first limit block (522) is fixed between the scale (11) and the probe (12), and the second limit block (523) is slidably sleeved in the length direction of the probe (12);

one end of the sleeve (2) far away from the fixing rod (3) is in threaded connection with a fixing ring (524) used for limiting the second limiting block (523), and the fixing ring (524) is sleeved on the length direction of the probe (12).

5. A pistol depth gauge according to claim 4, wherein: the first limiting block (522) extends towards one surface of the second limiting block (523) to form a guide rod (525), and the return spring (521) is sleeved on the guide rod (525).

6. A pistol depth gauge according to claim 4, wherein: be provided with on first stopper (522) and hit pearl (9), hit pearl (9) and sleeve pipe (2) inner wall sliding connection.

7. A pistol depth gauge according to claim 4, wherein: the end of the probe needle (12) is provided with a fixed hook (121).

8. A pistol depth gauge according to claim 7, wherein: the scale indication block (21) is provided with an inclined surface (211) towards the surface far away from the fixed hook (121), and the inclined surface (211) is obliquely arranged towards the direction of the scale mark (13).

9. A pistol depth gauge according to claim 7, wherein: one side of the second limiting block (523) far away from the first limiting block (522) is provided with a limiting column (526) in an extending mode, and the limiting column (526) penetrates through one end, facing the fixed hook (121), of the fixed ring (524).

10. A pistol depth gauge according to claim 4, wherein: one side of the scale (11) facing the pushing block (511) is provided with a plurality of clamping teeth (111), and one end of the pushing block (511) facing the scale (11) is meshed with the clamping teeth (111).