CN112773579B

CN112773579B - Test pad extractor

Info

Publication number: CN112773579B
Application number: CN202110128459.XA
Authority: CN
Inventors: 解凤宝; 史春宝; 常新洋; 郝孟娟
Original assignee: Beijing Chunlizhengda Medical Instruments Co Ltd
Current assignee: Beijing Chunlizhengda Medical Instruments Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2023-07-25
Anticipated expiration: 2041-01-29
Also published as: CN112773579A

Abstract

The utility model relates to a test pad extractor, including the handle, the inside of handle is equipped with the sliding chamber, sliding connection has elastic rod mechanism in the sliding chamber, the tip of handle is provided with carries out spacing portion to elastic rod mechanism, elastic rod mechanism is in the outside part connection first subassembly of taking out of sliding chamber, be equipped with the second on the spacing portion and take out the subassembly, first subassembly of taking out slides on the second takes out the subassembly. The beneficial effects of this application are: the test pad can be conveniently taken and placed, is convenient to hold in work, and has comfortable hand feeling, thereby improving the operation efficiency and the like.

Description

Test pad extractor

Technical Field

The application relates to the technical field of medical instruments, in particular to a test pad extractor.

Background

The surface knee prosthesis is a bone cement type knee prosthesis for surface replacement of knee joint. The new axial center type and hinge type knee joint prosthesis is a bone cement type knee joint prosthesis and is used for knee joint replacement when bone defects exist, and the knee joint prosthesis comprises knee joint bone tumors, serious comminuted fracture, bone defects caused by repeated artificial joint repair and other diseases causing the knee joint bone defects.

In the replacement surgery, a test pad is required to be inserted and removed when measuring the gap between the prostheses, and the related art generally uses forceps to clamp the test pad.

However, the inventors found that the above-described related art operation has the following drawbacks: because the surgical incision space is small, the surgical forceps are used for clamping, the operation is inconvenient, and further injury can be caused to a patient.

Disclosure of Invention

In order to improve the convenience of taking out the test pad, the application provides a test pad remover.

The application provides a test pad extractor adopts following technical scheme:

the utility model provides a test pad extractor, includes the handle, and the inside of handle is equipped with the sliding chamber, sliding connection has elastic rod mechanism in the sliding chamber, the tip of handle is provided with the spacing portion that carries out spacingly to elastic rod mechanism, elastic rod mechanism is in the outside part connection first subassembly of taking out of sliding chamber, be equipped with the second on the spacing portion and take out the subassembly, first subassembly of taking out slides on the second takes out the subassembly.

By adopting the technical scheme: through setting up first subassembly and the second of taking out, when pressing from both sides and getting the test pad, manual make first subassembly and the second of taking out take-out make up into a whole and insert the hole of taking out of test pad, later loosen first subassembly of taking out, first subassembly of taking out is under the drive of elastic rod mechanism, and the second of taking out subassembly slip and first subassembly of taking out separately support in the inside of test pad relatively, the test pad of taking out that can be convenient.

Optionally, the elastic rod mechanism includes sliding connection at the slide bar in the slip intracavity, the one end that the slide bar is in the slip intracavity is equipped with joint portion, be provided with the spring between joint portion and the end wall in slip chamber, the other end of slide bar is connected first subassembly of taking out.

By adopting the technical scheme: through setting up joint portion, the joint spring of being convenient for can provide an elasticity for the slide bar through setting up the spring, is convenient for pop out the slide bar to the handle outer end to promote first taking out the subassembly and pop out, be used for pressing from both sides and get the test pad.

Optionally, the first take-out assembly includes a hand pulling part connected with the sliding rod, and a take-out sub-rod connected with the hand pulling part, and the take-out sub-rod includes a straight sub-rod part and an oblique sub-rod part connected with the straight sub-rod part.

By adopting the technical scheme: through setting up hand power portion, be convenient for with the slide bar to the inside compression of handle for first subassembly laminating of taking out is taken out in the second and is taken out subassembly department, is convenient for insert the extraction hole of test pad with the front end that first subassembly and second taken out the subassembly, is convenient for take out the test pad through setting up straight sub-pole portion and oblique sub-pole portion.

Optionally, the second takes out the connecting portion that the subassembly includes being connected with spacing portion, the front end of connecting portion be equipped with first take out the subassembly take out son pole complex take out female pole, take out female pole including straight female pole portion and with straight female pole portion be connected to one side of female pole portion.

By adopting the technical scheme: the primary rod is taken out on the one hand before taking out the test pad, can hold and take out the son pole, can reduce the operating space who occupies, when taking out the test pad, takes out the son pole and breaks away from under the effect of spring and takes out the primary rod, separates between the two and outwards support column test pad, is convenient for take out the test pad.

Optionally, one end of the limiting part, which is close to the end part of the handle, is provided with a movable limiting groove.

By adopting the technical scheme: the movement limiting groove can limit the movement of the sliding rod and prevent the sliding rod from excessively moving.

Optionally, the straight female pole portion and with oblique female pole portion upside are equipped with the sliding tray of intercommunication, take out the son pole and slide in the sliding tray.

By adopting the technical scheme: through setting up the sliding tray, take out the son pole and can arrange in the sliding tray, further reduced and taken out the son pole and take out the occupation volume of mother pole, the operation of being convenient for more.

Optionally, the inclined sub-rod portion of the taking-out sub-rod is the same as the inclined main rod portion in inclination angle.

By adopting the technical scheme: the occupied volume of taking out the son bar and taking out the mother bar can be further reduced.

Optionally, a protrusion is provided at the end of the bevel gear lever.

By adopting the technical scheme: through setting up the arch, can hook the test pad and be convenient for take out the son pole, prevent to drop at the test pad in-process of getting and putting.

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

1. the test pad can be conveniently taken and placed, is convenient to hold in work, and has comfortable hand feeling, thereby improving the operation efficiency and the like.

2. The handle is made of injection molding silica gel, so that the handheld comfort is enhanced, the operation space can be saved, and further injury to a patient is avoided.

Drawings

Fig. 1 is an overall schematic of an embodiment of the present application.

Fig. 2 is a cross-sectional view of fig. 1 of an embodiment of the present application.

Reference numerals indicate, 100, handle; 110. a sliding chamber; 200. an elastic rod mechanism; 210. a slide bar; 211. a clamping part; 220. a spring; 300. a limit part; 400. a first take-out assembly; 410. a hand pulling part; 420. taking out the sub-rod; 421. a straight shank portion; 422. a bevel sub-stem; 500. a second take-out assembly; 510. a connection part; 520. taking out the parent rod; 521. a straight female shaft portion; 522. an oblique female rod portion; 600. moving the limit groove; 700. a sliding groove; 800. a protrusion.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses a test pad extractor, adopts following technical scheme:

referring to fig. 1 and 2, a test pad extractor includes a handle 100, the handle 100 adopts integrative injection molding of silica gel, can strengthen handheld comfort, be equipped with on the handle 100 and hold the groove, be convenient for hold, prevent when operating, the handle 100 drops, be equipped with sliding chamber 110 in the inside of handle 100, sliding chamber 110 sliding connection has elastic rod mechanism 200, the tip of handle 100 is provided with spacing portion 300 that carries out spacing to elastic rod mechanism 200, can prevent that elastic rod mechanism 200 from excessively moving, elastic rod mechanism 200 is in the outside part connection first subassembly 400 of taking out of sliding chamber 110, be equipped with the second on spacing portion 300 and take out subassembly 500, first subassembly 400 slides on the second and takes out subassembly 500. Through setting up first subassembly 400 and the second subassembly 500 of taking out, when pressing from both sides and getting the test pad, manual make first subassembly 400 and the second subassembly 500 of taking out can make up into a whole and insert the hole of taking out of test pad, unclamp first subassembly 400 afterwards, first subassembly 400 of taking out outwards pops up under the elasticity effect of elastic rod mechanism 200, can slide relative second subassembly 500 of taking out for first subassembly 400 of taking out and second subassembly 500 of taking out separate the support in the inside of test pad, the test pad of taking out that can be convenient.

Referring to fig. 1 and 2, in order to eject the first removing assembly 400, such that the first removing assembly 400 has elasticity, the elastic rod mechanism 200 in this embodiment includes a sliding rod 210 slidably connected in the sliding cavity 110, one end of the sliding rod 210 in the sliding cavity 110 is provided with a clamping portion 211, a spring 220 is provided between the clamping portion 211 and an end wall of the sliding cavity 110, by providing the clamping portion 211, the spring 220 is conveniently clamped, and by providing the spring 220, an elastic force is provided to the sliding rod 210, so that the sliding rod 210 is conveniently ejected toward the outer end of the handle 100, thereby pushing the first removing assembly 400 connected to the other end of the sliding rod 210 to eject for clamping a test pad.

Referring to fig. 1 and 2, in this embodiment, the first take-out assembly 400 is a movable assembly that is movable relative to the second take-out assembly 500; the first withdrawing assembly 400 includes a hand pulling part 410 connected with the sliding rod 210, the hand pulling part 410 facilitates pulling the sliding rod 210 toward the inside of the handle 100 and compressing the spring 220, so that the first withdrawing assembly 400 is attached to the second withdrawing assembly 500, facilitating inserting the front ends of the first withdrawing assembly 400 and the second withdrawing assembly 500 into the withdrawing hole of the test pad, and further includes a withdrawing sub-rod 420 connected with the hand pulling part 410, the withdrawing sub-rod 420 including a straight sub-rod part 421 and a bevel sub-rod part 422 connected with the straight sub-rod part 421.

The second withdrawing assembly 500 includes a connection part 510 connected with the limiting part 300, and a withdrawing female rod 520 engaged with the withdrawing sub-rod 420 of the first withdrawing assembly 400 is provided at the front end of the connection part 510, and the withdrawing female rod 520 includes a straight female rod part 521 and an inclined female rod part 522 connected with the straight female rod part 521. The primary rod 520 can accommodate the secondary rod 420 before taking out the test pad, so that the occupied operation space can be reduced, and when the test pad is taken out, the secondary rod 420 is separated from the primary rod 520 under the action of the spring 220, and the secondary rod 420 is separated from the primary rod 520 and supports the test pad outwards, which is equivalent to a reverse clamping, so that the test pad can be taken out conveniently.

Referring to fig. 1 and 2, in order to limit the movement range of the first extraction assembly 400, a movement limiting groove 600 is provided at one end of the limiting portion 300 near the end of the handle 100. The side wall of the movement limiting groove 600 is blocked at the end of the sliding bar 210, so that the movement limiting groove 600 can limit the movement of the sliding bar 210, preventing the sliding bar 210 from excessively moving.

Referring to fig. 1 and 2, a straight female lever 521 and a sliding groove 700 communicating with the upper side of the inclined female lever 522 are provided, and the take-out sub-lever 420 slides in the sliding groove 700. By arranging the sliding groove 700, the taking-out sub-rod 420 is arranged in the sliding groove 700, so that the occupied volumes of the taking-out sub-rod 420 and the taking-out main rod 520 are further reduced, and the operation is more convenient. The inclined sub-lever portion 422 of the take-out sub-lever 420 is inclined at the same angle as the inclined main-lever portion 522. The occupied volume of the take-out sub-lever 420 and the take-out main lever 520 can be further reduced. The end of the bevel sub-stem 422 is provided with a protrusion 800. When the end of the inclined rod 422 enters the test pad taking hole, the protrusion 800 can hook the test pad to prevent the test pad from falling off in the process of taking and placing.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A test pad remover, characterized in that: the novel multifunctional sliding device comprises a handle (100), wherein a sliding cavity (110) is formed in the handle (100), an elastic rod mechanism (200) is connected in the sliding cavity (110) in a sliding mode, a limiting part (300) for limiting the elastic rod mechanism (200) is arranged at the end portion of the handle (100), a first taking-out assembly (400) is connected to the part, located outside the sliding cavity (110), of the elastic rod mechanism (200), a second taking-out assembly (500) is arranged on the limiting part (300), and the first taking-out assembly (400) slides on the second taking-out assembly (500);

the second taking-out assembly (500) comprises a connecting portion (510) connected with the limiting portion (300), a taking-out female rod (520) matched with the taking-out sub-rod (420) of the first taking-out assembly (400) is arranged at the front end of the connecting portion (510), and the taking-out female rod (520) comprises a straight female rod portion (521) and an inclined female rod portion (522) connected with the straight female rod portion (521).

2. The test pad remover of claim 1 wherein: the elastic rod mechanism (200) comprises a sliding rod (210) which is slidably connected in the sliding cavity (110), a clamping portion (211) is arranged at one end of the sliding rod (210) in the sliding cavity (110), a spring (220) is arranged between the clamping portion (211) and the end wall of the sliding cavity (110), and the other end of the sliding rod (210) is connected with the first taking-out assembly (400).

3. The test pad remover of claim 2 wherein: the first extraction assembly (400) comprises a hand pulling part (410) connected with the sliding rod (210), an extraction sub-rod (420) connected with the hand pulling part (410), and the extraction sub-rod (420) comprises a straight sub-rod part (421) and an oblique sub-rod part (422) connected with the straight sub-rod part (421).

4. The test pad remover according to claim 1, wherein the end of the limit portion (300) near the end of the handle (100) is provided with a movement limit groove (600).

5. The test pad extractor according to claim 1, wherein the straight female shaft portion (521) and the slide groove (700) communicating with the upper side of the inclined female shaft portion (522) are provided, and the extraction sub-shaft (420) slides in the slide groove (700).

6. The test pad remover of claim 5 wherein: the inclined sub-rod part (422) of the extraction sub-rod (420) has the same inclination angle as the inclined main-rod part (522).

7. The test pad remover of claim 6 wherein: the tail end of the oblique sub-rod part (422) is provided with a bulge (800).