CN209996441U

CN209996441U - Medical quick-change handle

Info

Publication number: CN209996441U
Application number: CN201920597743.XU
Authority: CN
Inventors: 查民中; 蒋大为; 程飚
Original assignee: Shanghai Medical Instruments Group Co Ltd Surgical Instruments Factory; Shanghai Tenth Peoples Hospital
Current assignee: Shanghai Medical Instruments Group Co Ltd Surgical Instruments Factory; Shanghai Tenth Peoples Hospital
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-01-31
Anticipated expiration: 2029-04-28

Abstract

The utility model relates to a medical quick change handle, including the portion of gripping and with the portion of gripping the joint portion that is connected, the joint portion be provided with shaft hole and two at least buttons that are used for passing through medical instrument, the shaft hole follow the axial setting of joint portion, every the button follow the radial direction setting in shaft hole and run through the radial of shaft hole, the button set to follow the radial direction in shaft hole portable and can automatic re-setting to install the medical instrument of different diameters in joint portion adopted the quick change handle in this utility model, design benefit, the structure is succinct, can conveniently assemble the puncture instrument of two kinds of different diameters simultaneously to can conveniently swiftly change the puncture instrument, easy operation is convenient, can reduce the operation in-process effectively and change the puncture instrument number of times, improve operation efficiency.

Description

Medical quick-change handle

Technical Field

The utility model relates to the technical field of surgical instruments, in particular to medical quick-change handles.

Background

Clinically, minimally invasive surgery needs to establish an operation channel which directly reaches a focus position through a plurality of skin channels or tiny incisions, and surgical instruments perform operation on the focus position through the operation channels.

A puncture sheath with a diameter of about 2mm is used to puncture skin to a focus position by a quick-change handle, then a positioning needle is inserted into the puncture sheath, then the puncture sheath is pulled out and the positioning needle is kept in the human body, the puncture sheath with a diameter of 2.0mm on the quick-change handle is replaced by a puncture sheath with a diameter of 4mm, after the puncture sheath is used to puncture the positioning needle, the puncture is continued along the direction of the positioning needle, the operation channel is expanded to a diameter of 6mm from a diameter of 2.0mm, then the puncture sheath with a diameter of 4mm is replaced by a puncture sheath with a diameter of 6mm, after the puncture sheath with a diameter of 4mm is sleeved, the puncture is continued along the direction of the positioning needle, the operation channel is expanded to a diameter of 6mm, the steps are repeated until the operation channel is expanded to a proper size, so that other tools can enter the operation channel, and the diameter of the operation channel is 8mm to 10 mm.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide kinds of medical quick-change handles that can assemble two kinds of different diameter puncture instruments simultaneously to the not enough of prior art.

In order to realize the purpose, the utility model discloses a medical quick change handle as follows:

including the portion of gripping and with the portion of gripping the joint portion that is connected, the joint portion be provided with shaft hole and two at least buttons that are used for through medical instrument, the shaft hole follow the axial setting of joint portion, every the button follow the radial direction setting in shaft hole and run through the radial in shaft hole, the button set to follow the radial direction in shaft hole portable and automatic re-setting to install the medical instrument of different diameters in the joint portion.

Preferably, the button comprises a pressing part and a clamping part connected with the pressing part, the clamping part is provided with a clamping groove with th inner diameter and a second clamping groove with a second inner diameter, the second clamping groove is arranged to clamp the end part of a medical tool, the th inner diameter is larger than the second inner diameter, at least two buttons have different second inner diameters, when the button is operated to enable the button to move along the radial direction of the shaft hole, the area communicated with the shaft hole in the clamping part is changed from the second clamping groove to the th clamping groove, and the button can be automatically reset along the opposite direction through an elastic resetting piece.

Preferably, in the inserting direction of the medical tool, the shaft hole comprises an access port, a th section and a second section in sequence, the inner diameter of the th section is larger than that of the second section, the th button is arranged between the th section and the second section, the second button is arranged at the end of the second section, and the second inner diameter of the th button is larger than that of the second button.

Preferably, the shaft hole further comprises a third section, and the second button is arranged between the second section and the third section.

Preferably, the shaft hole is a circular shaft hole.

Preferably, the elastic return element is disposed between the joint part and the button.

Preferably, the holding part is provided with a plurality of anti-skid stripes.

Preferably, the joint part and the holding part are connected through a fastener.

Adopted the utility model discloses a medical quick change handle can conveniently assemble the puncture instrument of two kinds of different diameters simultaneously to can convenient and fast ground change the puncture instrument, easy operation is convenient, can reduce the operation in-process effectively and change the puncture instrument number of times, improve operation efficiency.

Drawings

Fig. 1 is a schematic structural view of the medical quick-change handle of the present invention.

Fig. 2 is a sectional view of the medical quick-change handle of the present invention.

Fig. 3 is a schematic structural view of the button in the medical quick-change handle of the present invention.

Fig. 4 a-4B are schematic cross-sectional views B-B of fig. 2 after the button 4 is pressed.

Fig. 5 a-5B are schematic cross-sectional views B-B of fig. 2 after the button 3 is pressed.

Reference numerals

1 grip part

2 joint part

3. 4 push button

5 fastener

6 spring

7. 8 clamping part

9 axle hole

10 pressing part

11 upper clamping groove

12 lower clamping groove

Detailed Description

In order to more clearly describe the technical content of the present invention, the following steps are taken in conjunction with the specific embodiments.

As shown in fig. 1 to 5b, an embodiment of the medical quick-change handle of the present invention is described by taking two buttons as an example, and includes: the joint portion 2 that portion 1 and with the portion of gripping be connected, the joint portion be provided with shaft hole 9 and two

buttons

3, 4 that are used for passing through medical instrument, shaft hole 9 follow the axial setting of joint portion, every the button follow the radial direction setting in shaft hole and run through the radial in shaft hole, the button set to follow the radial direction in shaft hole portable and automatic re-setting to install the medical instrument of different diameters in the joint portion.

As shown in fig. 2 and 3, the button includes a pressing portion 10 and a clamping portion connected to the pressing portion, and a return elastic member is disposed between the joint portion and the clamping portion of the button. The joint part set up draw-in groove 11 and draw-in groove 12 down, the draw-in groove sets up the tip that can block medical instrument down, and medical instrument's tip can be in last draw-in groove internalization, and the internal diameter of going up the draw-in groove sets up the internal diameter that is greater than the draw-in groove down, two

buttons

3, 4 have mutually different draw-in groove internal diameters down, wherein, the draw-in groove internal diameter of the lower draw-in groove of button 3 is less than the draw-in groove internal diameter of the lower draw.

That is to say, lower draw-in groove and the diameter phase-match of the medical instrument of treating the installation for the medical instrument of treating the installation is fixed in lower draw-in groove. When pressing the button, the button can follow the radial movement in shaft hole during, the joint part in with the region that the shaft hole is linked together become last draw-in groove by lower draw-in groove, and reset through elasticity, the button can reset along opposite direction automatically.

As shown in fig. 4a and 5a, the clamping portion 7 of the button 3 and the clamping portion 8 of the button 4 are both in the shape of a wider upper clamping groove and a narrower lower clamping groove, except that the inner diameter of the lower clamping groove of the button 3 is smaller than the inner diameter of the lower clamping groove of the button 4, so that the button 3 can be provided with a puncture tool with a smaller diameter, and the button 4 can be provided with a puncture tool with a larger diameter.

As shown in fig. 4a, the button 4 is pressed, the shaft hole is communicated with the upper clamping groove of the clamping part 8, and the puncture sheath can freely move along the axial direction of the shaft hole; as shown in fig. 4b, the button 4 is automatically returned in the opposite direction to being pressed by the spring 6, and the shaft hole is connected with a lower catch of the catch part 8, which catches a puncture sheath to be mounted on the button 4, so that the puncture sheath is mounted on the quick-change handle.

As shown in fig. 5a, the button 3 is pressed, the shaft hole is communicated with the upper clamping groove of the clamping part 7, and the puncture sheath can freely move along the axial direction of the shaft hole; as shown in fig. 5b, the push button 3 is automatically returned in the opposite direction to being pressed by the spring 6, and the shaft hole is connected with a lower catch of the catch portion 7, which catches a puncture sheath to be mounted on the push button 3 so that the puncture sheath is mounted on the quick-change handle.

Because the inner diameter of the lower clamping groove of the button 3 is smaller than the inner diameter of the lower clamping groove of the button 4, the button 3 can be provided with a puncture tool with a smaller diameter, and the button 4 can be provided with a puncture tool with a larger diameter. When the button 4 is in a reset state, the puncture sheath with the diameter smaller than the inner diameter of the lower clamping groove of the button 4 can freely pass through the lower clamping groove of the button 4 and reach the clamping part of the button 3 and is clamped by the lower clamping groove of the button 3. Therefore, the utility model discloses a puncture sheath of the less diameter of quick change handle accessible button 3 installation, the puncture sheath of the great diameter of installation simultaneously through button 4.

When specifically installing two puncture sheaths of different diameters, the following operation steps can be performed:

the button 3 is pressed down, the puncture sheath with the small diameter is inserted, the button 3 is loosened, the button 3 automatically resets, and the puncture sheath with the small diameter is installed on the button 3 of the joint part;

then the button 4 is pressed, the large-diameter puncture sheath to be installed is sheathed on the installed small-diameter puncture sheath, the tail end of the large-diameter puncture sheath enters an upper clamping groove of the button 4, the button 4 is loosened, the button 4 automatically resets, and the puncture sheaths with the two diameters at the moment are installed on the quick-change handle;

the corresponding puncture sheath can be axially pulled out along the quick-change handle by pressing different buttons.

As shown in FIG. 2, the axial hole comprises an access port, a th section and a second section in sequence along the insertion direction of the medical tool, the inner diameter of the th section is set to be larger than that of the second section, the button 4 is set between the th section and the second section, and the button 3 is set at the end of the second section, the axial hole 9 is set to be circular.

Compare in right side shaft hole, the left side shaft hole internal diameter of button 4 is less, and when the puncture instrument of installation button 4, this puncture instrument can be fixed a position to the left pore wall of button 4, restricts this puncture instrument's excessive insertion, and wherein the last draw-in groove internal diameter of button 4 can rather than the internal diameter phase-match in right side shaft hole.

Similarly, compare in the right side shaft hole, the left side shaft hole internal diameter of button 3 is less, and when the puncture tool of button 3 was installed, this puncture tool can be fixed a position to the left pore wall of button 3, restricted this puncture tool's excessive insertion, and wherein the last draw-in groove internal diameter of button 3 can match with the internal diameter in the right side shaft hole that closes on. Alternatively, the left side of the button 3 may not be provided with a shaft hole, but a solid wall, and the puncture tool may be positioned to limit the over-insertion of the puncture tool.

The utility model provides an in the embodiment, the portion of gripping set up several anti-skidding stripe, prevent that the hand from skidding in operation process, play effectual antiskid.

The utility model provides an in the embodiment, the portion of gripping can be hollow structure, joint portion with the portion of gripping be connected through fastener 5.

Adopted the quick change handle among this utility model, design benefit, the structure is succinct, can conveniently assemble the puncture instrument of two kinds of different diameters simultaneously to can convenient and fast ground change the puncture instrument, easy operation is convenient, can reduce the operation in-process effectively and change the puncture instrument number of times, improve operation efficiency.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

The utility model provides medical quick-change handle, its characterized in that, including the portion of gripping and with the portion of coupling that is connected of gripping, the coupling be provided with shaft hole and two at least buttons that are used for passing through medical instrument, the shaft hole follow the axial setting of coupling, every the button follow the radial direction setting in shaft hole and run through the radial in shaft hole, the button set to follow the radial direction in shaft hole portable and automatic re-setting to install the medical instrument of different diameters in the coupling.
2. The medical quick-change handle according to claim 1, wherein the push button comprises a pressing portion and a clamping portion connected with the pressing portion, the clamping portion is provided with a th clamping groove with th inner diameter and a second clamping groove with a second inner diameter, the second clamping groove is provided to clamp the end of the medical tool, the th inner diameter is larger than the second inner diameter, the at least two push buttons have second inner diameters different from each other, when the push button is operated to move along the radial direction of the shaft hole, the area of the clamping portion communicated with the shaft hole is changed from the second clamping groove to the th clamping groove, and the push button can be automatically reset along the opposite direction through an elastic resetting piece.
3. The medical quick-change handle according to claim 2, wherein the axial hole comprises an access port, a th section and a second section in sequence along the insertion direction of the medical tool, the inner diameter of the th section is configured to be larger than the inner diameter of the second section, the th push button is configured between the th section and the second section, and the second push button is configured at the end of the second section, and the second inner diameter of the th push button is configured to be larger than the second inner diameter of the second push button.
4. The medical quick-change handle according to claim 3, wherein the axial bore further comprises a third section, and the second button is disposed between the second section and the third section.
5. The medical quick-change handle according to claim 1 or 2, wherein the shaft hole is a circular shaft hole.
6. The medical quick-change handle according to claim 2, wherein the return resilient member is disposed between the connector portion and the push button.
7. The medical quick-change handle according to claim 1 or 2, wherein the grip portion is provided with a plurality of anti-slip strips.
8. The medical quick-change handle according to claim 1, wherein the adapter portion and the grip portion are connected by a fastener.