CN206729969U

CN206729969U - Guider guide pin

Info

Publication number: CN206729969U
Application number: CN201621026902.3U
Authority: CN
Inventors: 王多福
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-12-12
Anticipated expiration: 2026-08-31

Abstract

The utility model provides guider guide pin, and the guide pin is made up of at least two sections of short guide needles, is detachably connected between adjacent two sections of short guide needles；In use, after first section short guide needle is squeezed into by guider, adjacent next section of short guide needle is connected, each section of short guide needle is connected and squeezed into successively, reaches the effect that whole stylus printer enters.Guider of the present utility model is split as multistage short guide needle with guide pin, and guider holds short guide needle every time, after the guide pin of short guide needle length is squeezed into, then by after next section of short guide needle connection, recycles guider to squeeze into.Using the guide pin of multistage short guide needle of the present utility model, guider is avoided during guide pin is squeezed into, no needs move down, it is possible to ensure to squeeze into the directionality of guide pin, wound will not increase, and extra pain will not be brought to patient.

Description

Guider guide pin

Technical field

It the utility model is related to medical apparatus technical field, especially guider guide pin.

Background technology

Medical director is usually used in the bone piece in fixing human, and measures the length of nail.Existing guide pin guider is mainly used In the direction that guiding screw is fixed, play what is fixed temporarily.Current guide pin all uses whole, and length is very long, causes to be oriented to Device, it is necessary to move down, just can guarantee that the directionality for squeezing into guide pin, so necessarily bring wound to increase during guide pin is squeezed into Greatly, more pains are brought to patient.Especially fractured between femur slightly drops in minimally invasive DHS treatments, the guide pin of use is up to 20cm, in order to ensure the direction of guide pin, guider is needed to extend downwardly 3-4cm during squeezing into, wound increase, brought to patient More pains.

Utility model content

The purpose of this utility model is to provide guider guide pin, and the guider being particularly suitable for use in minimally invasive DHS treatments is used Guide pin, solves the technical problem that existing whole root long guide pin brings wound to increase during squeezing into.

In order to achieve the above object, the utility model provides following technical scheme：

Guider guide pin, the guide pin are made up of at least two sections of short guide needles, are detachably connected between adjacent two sections of short guide needles Connect；In use, after first section short guide needle is squeezed into by guider, adjacent next section of short guide needle is connected, successively connects each section of short guide needle And squeeze into, reach the effect that whole stylus printer enters.

Further, the end of a short guide needle opens up screw in adjacent two sections of short guide needles, the end of another short guide needle Open up the screw division being engaged with the screw；At least one annular groove is opened up on the inwall of the screw, is arranged in the annular groove Turn.

Further, opened up on the lateral wall of the screw division corresponding with the position of the annular groove on the screw inwall Annular groove.

Further, the depth of the screw is 1-2cm, and the length of the screw division is consistent with the depth of the screw.

Further, the number of the annular groove opened up on the inwall of the screw is 2.

Further, the end-face helical being engaged is opened up on the end face of the contact of adjacent two sections of short guide needles.

Preferably, a height of 1-1.5mm of the tooth of the end-face helical.

Further technical scheme is that the guide pin is made up of the first short guide needle and the second short guide needle, first short-range missile Pin and the second short guide needle are detachably connected.

Further, the length of first short guide needle is 0.45-0.5 times of guide pin entire length, second short-range missile The length of pin is 0.5-0.55 times of guide pin entire length.

Further, a diameter of 2mm of every section of short guide needle.

Guider of the present utility model is split as multistage short guide needle with guide pin, and guider holds short guide needle every time, by short-range missile After the guide pin of pin length is squeezed into, then by after next section of short guide needle connection, guider is recycled to squeeze into.Using of the present utility model The guide pin of multistage short guide needle, guider is avoided during guide pin is squeezed into, no needs move down, it is possible to which guarantee, which is squeezed into, to be led The directionality of pin, wound will not increase, and extra pain will not be brought to patient.

A kind of detachable connection is further preferably provided in the utility model, connection is effective and firm, and can also protect Hold the guide pin after the connection of multistage short guide needle point-blank.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of guider guide pin of the present utility model；

Fig. 2 is the cross-sectional view that guider of the present utility model is detachably connected place with guide pin；

Fig. 3 is the end structure illustration of the screw of one section of short guide needle of guider guide pin of the present utility model；

Fig. 4 is the end structure illustration of the screw section of one section of short guide needle of guider guide pin of the present utility model.

Embodiment

Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, Obviously, described embodiment is only the utility model part of the embodiment, rather than whole embodiments.Based on this practicality Embodiment in new, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made Example is applied, belongs to the scope of the utility model protection.

According to Fig. 1 to Fig. 4, illustrate guider guide pin of the present utility model, the guide pin 10 is short by least two sections Guide pin is formed, and is detachably connected between adjacent two sections of short guide needles；In use, after first section short guide needle is squeezed into by guider, phase is connected Adjacent next section of short guide needle, each section of short guide needle is connected and squeezed into successively, reach the effect that whole stylus printer enters.

Preferably, the guide pin 10 is made up of the first short guide needle 11 and the second short guide needle 12, the He of the first short guide needle 11 Second short guide needle 12 is detachably connected.The length of first short guide needle 11 is 0.45-0.5 times of the entire length of guide pin 10, institute The length for stating the second short guide needle 12 is 0.5-0.55 times of the entire length of guide pin 10.

Being detachably connected using following structure between adjacent the first short guide needle 11 and the second short guide needle 12：Adjacent The end of first short guide needle 11 opens up screw 111 in one short guide needle 11 and the second short guide needle 12, and the end of the second short guide needle 12 is opened If the screw division 121 being engaged with the screw 111；At least one annular groove 112 is opened up on the inwall of the screw 111, it is described Turn 20 is arranged in annular groove 112.First short guide needle 11 and the second short guide needle 12 are utilized while being connected using screw thread Turn 20 carries out clip, ensures both effective connections, prevents two adjacent short guide needles from disconnecting.In the utility model, lead to Cross the fastness for opening up two enhancing clips of annular grooves 112.Preferably, opened up on the lateral wall of the screw division 121 with it is described The corresponding annular groove in the position of annular groove 112 on the inwall of screw 111, increases clip fastness.

In order to strengthen the connection of two adjacent short guide needles, by the depth of the screw 111 of the end of first short guide needle 11 Degree is designed as 1-2cm, and the length of the screw division is consistent with the depth of the screw.

Due to the limited diameter of guide pin, therefore, in order to further enhance the bonding strength of two adjacent short guide needles, in institute State and open up the end face spiral shell being engaged on the end face of the contact of adjacent two sections of short guide needles (the first short guide needle 11 and the second short guide needle 12) Line (113 and 122), as shown in Figure 3 and Figure 4.The a height of 1-1.5mm of tooth of end-face helical described in decision design.

The guider guide pin applied in a kind of minimally invasive DHS treatments of being fractured between femur slightly drops is provided in the utility model, The guider guide pin is made up of 9cm the first short guide needles 11 grown and 11cm the second short guide needle 12 grown, two sections of short guide needles it is straight Footpath is 2mm.

It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be described with power The protection domain that profit requires is defined.

Claims

1. guider guide pin, it is characterised in that the guide pin is made up of at least two sections of short guide needles, between adjacent two sections of short guide needles It is detachably connected；In use, after first section short guide needle is squeezed into by guider, adjacent next section of short guide needle is connected, it is short by each section successively Guide pin is connected and squeezed into, and reaches the effect that whole stylus printer enters.

2. guider guide pin according to claim 1, it is characterised in that short guide needle in adjacent two sections of short guide needles End opens up screw, and the end of another short guide needle opens up the screw division being engaged with the screw；On the inwall of the screw At least one annular groove is opened up, turn is arranged in the annular groove.

3. guider guide pin according to claim 2, it is characterised in that opened up on the lateral wall of the screw division and institute State the corresponding annular groove in the position of the annular groove on screw inwall.

4. guider guide pin according to claim 2, it is characterised in that the depth of the screw is 1-2cm, the spiral shell The length in nail portion is consistent with the depth of the screw.

5. guider guide pin according to claim 2, it is characterised in that the annular groove opened up on the inwall of the screw Number is 2.

6. guider guide pin according to any one of claim 1 to 5, it is characterised in that adjacent two sections of short-range missiles The end-face helical being engaged is opened up on the end face of the contact of pin.

7. guider guide pin according to claim 6, it is characterised in that a height of 1-1.5mm of tooth of the end-face helical.

8. according to the guider guide pin described in claim 1,2,3,4,5 or 7, it is characterised in that the guide pin is by first Short guide needle and the second short guide needle are formed, and first short guide needle and the second short guide needle are detachably connected.

9. guider guide pin according to claim 8, it is characterised in that the length of first short guide needle is that guide pin is whole 0.45-0.5 times of body length, the length of second short guide needle are 0.5-0.55 times of guide pin entire length.

10. according to the guider guide pin described in claim 1,2,3,4,5,7 or 9, it is characterised in that every section of short guide needle A diameter of 2mm.