CN209391989U - The biopsy device of multi-chamber sample holder - Google Patents

Abstract

The utility model discloses a kind of biopsy devices of multi-chamber sample holder, comprising: handle；Cutter comprising outer knife pipe and interior knife pipe, the rear end of outer knife pipe are fixed on handle, and interior knife pipe is set in outer knife pipe, and can be relative to the rotation of outer knife pipe and axially reciprocating；Sample holder is arranged in handle, multiple imports that multiple sample chambers are provided on sample holder and are connected to respectively with multiple sample chambers；Further include: input pipe is arranged in handle, and can rotate around rotation axis, and the head end of input pipe is connected to the rear end of interior knife pipe, the inlet communication of its tail end selectivity and one of sample chamber when input pipe rotates；And input pipe driving device, it is used to that input pipe to be driven to rotate.The rotatable parts of above-mentioned biopsy device are input pipe, and light-weight, required power is small, therefore at low cost, and high reliablity.

Description

The biopsy device of multi-chamber sample holder

Technical field

The utility model relates to medical instruments fields, more particularly to a kind of biopsy device of multi-chamber sample holder.

Background technique

Biopsy device is used to carry out living body sampling to soft tissue in patient body.Biopsy device generally includes handle and peace Loaded on the cutter on handle.Cutter includes interior knife pipe and the outer knife pipe that is coated at except interior knife pipe, outer knife pipe by front end radially It is provided with sampling groove, is punctured after entering epidermis, soft tissue is inhaled into sampling groove under the action of negative pressure, and rotary-cut will forward for interior knife pipe at this time Soft tissue cuts and is contained in interior knife pipe front end.Handle also wraps other than including to drive the driving mechanism of interior knife pipe rotary-cut campaign Sample holder is included, after the interior knife pipe of cutter obtains soft tissue, soft tissue will be inhaled into sample holder and temporarily store.

Single-chamber room sample holder is only provided in the biopsy device occurred earliest, the tissue samples repeatedly sampled are mixed It is placed on wherein, cannot be distinguished.In order to solve this problem, sample holder is separated into multiple chamber lists by some biopsy devices Member, and sample holder can rotate in handle, and sample holder is rotated so that soft tissue to be collected into each chamber list respectively In member.This biopsy device, using driving entire sample holder to rotate, since sample holder gravity itself is big, in addition also Be stored with soft tissue, it is therefore desirable to very big driving force, be also easy to destroy soft tissue form, cause it is at high cost, and rotate Angle controllable precision is poor, and reliability is low.

Summary of the invention

For above-mentioned state of the art, the utility model provide it is a kind of it is at low cost, can avoid destroying soft tissue form, turn The biopsy device of the high multi-chamber sample holder of dynamic angle controllable precision.

In order to solve the above-mentioned technical problem, the biopsy dress of a kind of multi-chamber sample holder provided by the utility model It sets, comprising: handle；Cutter comprising the rear end of outer knife pipe and interior knife pipe, the outer knife pipe is fixed on the handle, described Interior knife pipe is set in the outer knife pipe, and can be relative to the outer knife pipe rotation and axially reciprocating；Sample holder, It is arranged in the handle, and multiple sample chambers are provided on the sample holder and are connected respectively with multiple sample chambers Logical multiple imports；Further include: input pipe is arranged in the handle, and can rotate around rotation axis, and the input is led The head end of pipe is connected to the rear end of the interior knife pipe, selectivity and one of them described sample chamber when the input pipe rotates Inlet communication；And input pipe driving device, it is used to that the input pipe to be driven to rotate.

The biopsy device of above-mentioned multi-chamber sample holder controls input pipe by input pipe driving device and turns Dynamic, selectivity is connected to the import of interior knife pipe and one of them sample chamber, so that the tissue samples repeatedly sampled be stored In different chambers, distinguished.The rotatable parts of the biopsy device are input pipe, and light-weight, required power is small, because This is at low cost, and high reliablity.

Rear end of the head end of the input pipe through the first connection component Yu the interior knife pipe in one of the embodiments, Connection, the tail end of the input pipe connect through the second connection component with the import of multiple sample chambers and selectively and its In an inlet communication；The rotation axis of the input pipe is overlapped with the axis of the interior knife pipe, multiple samples The import of chamber circumferentially spaced arrangement centered on the rotation axis.

In one embodiment, the tail end of first connection component is fixedly connected with the head end of the input pipe, institute The head end for stating the first connection component is connect with the back end activity of the interior knife pipe, and first connection component is led with the input The rotation of pipe and rotate；The rear end of the interior knife pipe can be rotated relative to first connection component and axially reciprocating.

In one embodiment, first connection component includes outer tube and sealing element, the outer tube with it is described interior Knife pipe is coaxial, and the tail end of the outer tube is fixedly connected with the head end of the input pipe, and institute is inserted into the rear end of the interior knife pipe It states in the head end of outer tube, and can be arranged relative to outer tube rotation and axially reciprocating, the sealing element in institute It states between the rear end and the outer tube of interior knife pipe.

In one embodiment, the outer tube further includes cricoid piston, and the piston is fixedly coated at positioned at institute On the rear end for stating the interior knife pipe within outer tube, the sealing element is coated on the piston.

In one embodiment, the input pipe is Z-shaped, and the input pipe includes from the head end of input pipe to tail Hold sequentially connected first segment, second segment and third section.

In one embodiment, the sample holder includes tubular sample holder ontology, in the sample The sliding slot of annular is provided on the end face of the first end of retainer ontology, the import of multiple sample chambers is located at the cunning On the bottom surface of slot, second connection component includes slide head, and the tail end of one end of the slide head and the input pipe connects It connects, the other end is positioned in the chute, and can be slided along the sliding slot.

In one embodiment, the sample holder further includes the cover board for sealing the notch of the sliding slot, described The first end of cover board and the sample holder ontology is rotatably coupled, and is provided on the cover board for the input pipe The through-hole passed through.

In one embodiment, multiple outlets are provided on the end face of the second end of the sample holder ontology, It is multiple it is described outlet be connected to respectively with multiple sample chambers, the sample holder further include it is multiple be respectively received in it is more A indoor drawer formula sample slot of the sample chamber, the drawer formula sample slot be put into the sample chamber by the outlet or It is taken out out of described sample chamber.

In one embodiment, the position corresponding with the outlet of the shell of the handle is provided with the taking-up of annular Mouthful, the annular buckle closure for being opened and closed outlet is provided at the outlet.

In one embodiment, the sample holder further includes vaccum suction tube, and the vaccum suction tube includes supervisor With multiple branch pipes, one end of multiple branch pipes is connected to multiple sample chambers respectively, and the other end is connected to the supervisor.

In one embodiment, the input pipe driving device includes stepper motor and first gear transmission mechanism, institute The output shaft of the input terminal and the stepper motor of stating first gear transmission mechanism is sequentially connected, the first gear transmission mechanism Output end and the input pipe be sequentially connected.

In one embodiment, the stepper motor is set in the handle rear end, and the output of the stepper motor For axis towards the handle front end and parallel with the rotation axis, the first gear transmission mechanism includes third gear, the 4th Gear, the 5th gear and the 6th gear, the third gear are mounted on the output shaft of the stepper motor, the 4th tooth Wheel and the 5th gear are co-axially mounted in shaft, and the 4th gear is engaged with the third gear, the 6th tooth Wheel is sheathed on the input pipe, and the 6th gear is engaged with the 5th gear.

Beneficial effect possessed by the utility model additional technical feature will this specification specific embodiment part into Row explanation.

Detailed description of the invention

Fig. 1 is the partial sectional view of the biopsy device of the multi-chamber sample holder in the utility model embodiment；

Fig. 2 is the partial sectional view of the cutter in the utility model embodiment；

Fig. 3 is the cross-sectional view of the handle in the utility model embodiment；

Fig. 4 is the cross-sectional view of the handle in the utility model embodiment；

Fig. 5,6 for the first connection component in the utility model embodiment cross-sectional view, wherein Fig. 5 is that interior knife pipe moves to The state of terminal before movement travel, Fig. 6 are the state that interior knife pipe moves to terminal after movement travel；

Fig. 7 is the cross-sectional view of the sample holder in the utility model embodiment；

Fig. 8 is the left view for removing cover board of the sample holder in the utility model embodiment；

Fig. 9 is the right view for removing cover board of the sample holder in the utility model embodiment.

Description of symbols: 10, handle；11, shell；111, annular buckle closure；12, cutter driving device；121, driving electricity Machine；122, first gear；123, second gear；124, swivel nut；13, input pipe driving device；131, stepper motor；132, Three gears；133, the 4th gear；134, the 5th gear；135, the 6th gear；20, cutter；21, outer knife pipe；211, puncture needle； 212, sampling groove；22, interior knife pipe；30, sample holder ontology；31, sample chamber；32, sliding slot；33, import；34, drawer style This slot；35, first end；36, the second end；37, centre bore；40, input pipe；41, first segment；42, second segment；43, Three sections；50, the first connection component；51, outer tube；511, path section；512, flange；52, piston；53, sealing element；60, second Connection component；61, slide head；62, cover board；70, vaccum suction tube；71, it is responsible for；72, branch pipe.

Specific embodiment

Below with reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.It should be noted that not rushing In the case where prominent, the feature in following embodiment and embodiment be can be combined with each other.

The biopsy device of the multi-chamber sample holder of the utility model is used to carry out living body to soft tissue in patient body Sampling.As shown in Figure 1, the biopsy device of the utility model in one embodiment includes handle 10, cutter 20, sample holding Device and input pipe 40.Wherein, handle 10 includes shell 11, cutter driving device 12, input pipe driving device 13 and control Circuit board (not shown) processed, the bar shaped that shell 11 holds for convenience of hand, cutter driving device 12, input pipe driving device 13 and control circuit board be contained in shell 11.

As shown in Fig. 2, the cutter 20 in the present embodiment includes outer knife pipe 21 and interior knife pipe 22, the front end of outer knife pipe 21 is set It is equipped with puncture needle 211, outer knife pipe 21 radially offers sampling groove 212 close to front position, and the rear end of outer knife pipe 21 is fixedly It is mounted in the front end of shell 11.Interior knife pipe 22 is set in the outer knife pipe 21, and can be rotated relative to the outer knife pipe 21 And axially reciprocating.The front end of interior knife pipe 22 has the cutter head for cutting through the tissue of sampling groove 212, interior knife pipe 22 Rear end insertion shell 11 in, and connect with cutter driving device 12.When cutter driving device 12 drives interior knife pipe 22 to rotate And when axially reciprocating, the cutter head of interior knife pipe 22 and 212 mutual shear motion of sampling groove realize cutter head to entering sampling The cutting function of tissue in slot 212.

As shown in Figure 1,3, the cutter driving device 12 in the present embodiment includes driving motor 121, second gear driver Structure and swivel nut 124, as an example, second gear transmission mechanism includes first gear 122 and second gear 123, first gear 122 It is mounted on the output shaft of driving motor 121, second gear 123 is engaged with first gear 122, and second gear 123 is coated at spiral shell On set 124, and swivel nut 124 is coated on the rear end of interior knife pipe 22.When driving motor 121 works, first gear 122 rotates, the One gear 122 drives second gear 123 to rotate, and then swivel nut 124 rotates, and is formed on the back segment of the close rear end of interior knife pipe 22 The screw thread cooperated with swivel nut 124, so that rotation and axially reciprocating may be implemented in interior knife pipe 22.

Referring to Fig. 1,7, sample holder is arranged in shell 11 comprising sample holder ontology 30, sample holder Ontology 30 has the first end 35 and the second end 36 opposite with first end 35 close to interior 22 side of knife pipe, in institute It states and is provided with multiple sample chambers 31 for temporarily storage soft tissue on sample holder ontology 30, in sample holder ontology The multiple imports 33 being connected to respectively with multiple sample chambers 31, multiple 33 edges of import are provided on the end face of 30 first end 35 Arranged for interval on circumferencial direction.

Input pipe 40 is arranged in the handle 10, and can rotate around rotation axis L, it is preferable that input pipe 40 Rotation axis L is overlapped with the axis of interior knife pipe 22.The head end of the input pipe 40 is through the first connection component 50 and the interior knife The rear end of pipe 22 is connected to, and the tail end of the input pipe 40 is through the import of the second connection component 60 and multiple sample chambers 31 33 connections.As shown in figure 4, the input pipe 40 in embodiment is Z-type comprising successively from the head end of input pipe 40 to tail end First segment 41, second segment 42 and the third section 43 of connection.

Input pipe driving device 13 is for driving the input pipe 40 to rotate.As shown in Figure 1,3, the input pipe Driving device 13 includes stepper motor 131 and first gear transmission mechanism, the input terminal of the first gear transmission mechanism and institute The output shaft transmission connection of stepper motor 131 is stated, the output end of the first gear transmission mechanism and the input pipe 40 pass Dynamic connection.As an example, the stepper motor 131 in the present embodiment is arranged in the rear end of shell 11 of handle 10, stepper motor 131 output shaft is towards the front end of shell 11 and parallel with rotation axis L.First gear transmission mechanism in the present embodiment includes Third gear 132, the 4th gear 133, the 5th gear 134 and the 6th gear 135, third gear 132 are mounted on stepper motor On 131 output shaft, the 4th gear 133 and the 5th gear 134 are co-axially mounted in shaft, are rotated synchronously, the 4th gear 133 It is engaged with third gear 132, the 6th gear 135 is mounted on the first segment 41 of input pipe 40, the 6th gear 135 and the 5th Gear 134 engages.When stepper motor 131 works, according to the instruction that host inputs, predetermined angle is rotated, third gear 132 is driven Rotation, then drive the 4th gear 133 to rotate, then the 5th gear 134 is driven to rotate, then the 6th gear 135 is driven to rotate, it is last defeated Enter conduit 40 and rotate predetermined angle, is aligned with the import 33 of each sample chamber 31.Input pipe in the present embodiment drives dress 13 are set using stepper motor as power source, the rotation angle accuracy of stepper motor is high, is conducive to accurately control input pipe 40 Rotate angle.In addition, the first gear transmission mechanism adopts the structure, have the advantages that it is compact-sized, to save space.

The biopsy device of the multi-chamber sample holder of the utility model is controlled by input pipe driving device 13 and is inputted Conduit 40 rotates, and selectivity is connected to the import 33 of interior knife pipe 22 and one of them sample chamber 31, to will repeatedly sample Tissue samples be stored in different chambers, distinguished.The rotatable parts of the biopsy device are input pipe 40, weight Gently, required power is small, therefore at low cost, and high reliablity.

As shown in Figure 5,6, as an example, the head of the tail end of first connection component 50 and the input pipe 40 End is fixedly connected, and the head end of first connection component 50 is connect with the back end activity of the interior knife pipe 22, first connection Component 50 is rotated with the rotation of the input pipe 40, and the rear end of the interior knife pipe 22 can connect relative to described first The rotation of connected components 50 and axially reciprocating.As one of example, first connection component 50 includes outer tube 51 With sealing element 53, the outer tube 51 and the interior knife pipe 22 are coaxial, the tail end of the outer tube 51 and the input pipe 40 Head end be fixedly connected.Specifically, the rear end of outer tube 51 forms outside path section 511, the head end insertion of input pipe 40 In the path section 511 of 51 tail end of outer tube, and with its tight fit, the head end head of input pipe 40 is formed with chamfering, avoids blocking. It is further alternative, interior walls be smooth transition or chamfering between path section 511 and outer tube 51.The front end of outer tube 51 formed to The rear end of interior flange 512, the interior knife pipe 22 is inserted into the head end of the outer tube 51, and can be relative to the outer tube 51 It rotates and axially reciprocating, the sealing element 53 is arranged between the rear end and the outer tube 51 of the interior knife pipe 22. Preferably, the outer tube 51 further includes cricoid piston 52, and the piston 52 is fixedly coated at positioned at the outer tube 51 Within the interior knife pipe 22 rear end on, the outer diameter of piston 52 is greater than the internal diameter of flange 512, so that interior knife pipe 22 is axial past It will not fall off with outer tube 51 when moving again.The sealing element 53 is coated on the piston 52, prevents tissue fluid from outer tube It lets out 51 front end.

As Figure 7-9, it is preferable that sample holder ontology 30 is in hollow cylindrical, sample holder ontology 30 Central axis be overlapped with rotation axis L, multiple imports 33 are along with the central axis of the sample holder ontology 30 Arranged for interval on the circumferencial direction at center.It is further preferred that multiple sample chambers 31 are along with the sample holder sheet Arranged for interval on circumferencial direction centered on the central axis of body 30, the sample chamber 31 are extended to from the first end 35 The second end 36.

Preferably, the sliding slot 32 of annular is provided on the end face of the first end 35 of the sample holder ontology 30, The import 33 of multiple sample chambers 31 is located on the bottom surface of the sliding slot 32, and second connection component 60 includes slide head 61, one end of the slide head 61 is connect with the tail end of the input pipe 40, and the other end is located in the sliding slot 32, and can edge The sliding slot 32 slides.The rotation of input pipe 40 is oriented to by sliding slot 32 and slide head 61.

Preferably, the sample holder further includes the cover board 62 for sealing the notch of the sliding slot 32, the cover board 62 are rotatably coupled with the first end 35 of the sample holder ontology 30, the rotation axis L and sample of the cover board 62 The central axis of retainer ontology 30 is overlapped, and the through-hole passed through for the input pipe 40 is provided on the cover board 62.Pass through Cover board 62 seals the notch of sliding slot 32, and the liquid such as watery blood are flowed out from notch when preventing because of slide head 61 and 33 misalignment of import, with And solve the sealing problem of Chamber vacuum environment.

Preferably, multiple outlets are provided on the end face of the second end 36 of the sample holder ontology 30, Multiple outlets are connected to multiple sample chambers 31 respectively.The sample holder ontology 30 further includes multiple divides The drawer formula sample slot 34 not being contained in multiple sample chambers 31, the drawer formula sample slot 34 are put into sample chamber by outlet It is taken out in room 31 or out of sample chamber 31.The end of drawer formula sample slot 34 is formed with handle, can be plugged by pushing and pulling handle Drawer formula sample slot 34, convenient for taking out sample.Preferably, the position corresponding with outlet of the shell 11 of handle 10 is provided with annular Outlet and annular buckle closure 111 (see Fig. 1) for being opened and closed outlet, annular buckle closure 111 can be opened from 10 tail portion of handle, thus Handle can be pushed and pulled to take out sample.

In one embodiment, sample holder further includes vaccum suction tube 70, and the vaccum suction tube 70 includes supervisor 71 and multiple branch pipes 72, one end of multiple branch pipes 72 be connected to respectively with multiple sample chambers 31, the other end with it is described 71 connection of supervisor.Preferably, the sample holder ontology 30 be provided centrally with axially through centre bore 37, it is described Supervisor is located in the centre bore 37, and along the axially extending of centre bore 37, multiple branch pipes are located at the centre bore 37 It is interior, and radially extending along centre bore 37.Biopsy device is connect in use, being responsible for 71 with external negative pressure system, passes through negative pressure System provides suction force, in the soft tissue sucking sample chamber 31 that cutter 20 is cut down.

To sum up, the biopsy device of the utility model controls input pipe 40 by input pipe driving device 13 and rotates, Selectivity is connected to the import 33 of interior knife pipe 22 and one of them sample chamber 31, so that the tissue samples repeatedly sampled be deposited It is placed in different chambers, is distinguished.The rotatable parts of the biopsy device are input pipe 40, light-weight, required power It is small therefore at low cost, and high reliablity.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the protection scope of the utility model.

Claims (10)

1. a kind of biopsy device of multi-chamber sample holder, comprising:

Handle；

Cutter comprising the rear end of outer knife pipe and interior knife pipe, the outer knife pipe is fixed on the handle, the interior knife pipe setting In in the outer knife pipe, and can be relative to the outer knife pipe rotation and axially reciprocating；

Sample holder is arranged in the handle, multiple sample chambers and difference is provided on the sample holder The multiple imports being connected to multiple sample chambers；

It is characterized by further comprising:

Input pipe is arranged in the handle, and can rotate around rotation axis, the head end of the input pipe with it is described interior The rear end of knife pipe is connected to, its tail end selectivity and the import of one of them sample chamber connect when the input pipe rotates It is logical；And

Input pipe driving device is used to that the input pipe to be driven to rotate.

2. the biopsy device of multi-chamber sample holder according to claim 1, which is characterized in that the input pipe Head end is connected to through the first connection component with the rear end of the interior knife pipe, and the tail end of the input pipe is through the second connection component and more The import of a sample chamber connect and selectively with one of inlet communication；The rotation axis of the input pipe It is overlapped with the axis of the interior knife pipe, the import of multiple sample chambers is circumferentially square centered on the rotation axis To arranged for interval.

3. the biopsy device of multi-chamber sample holder according to claim 2, which is characterized in that the first connection group The tail end of part is fixedly connected with the head end of the input pipe, first connection component with the rotation of the input pipe and Rotation；The head end of first connection component is connect with the back end activity of the interior knife pipe, and the rear end of the interior knife pipe can be opposite In first connection component rotation and axially reciprocating.

4. the biopsy device of multi-chamber sample holder according to claim 3, which is characterized in that the first connection group Part includes outer tube and sealing element, and the outer tube and the interior knife pipe are coaxial, and the tail end of the outer tube is led with the input The head end of pipe is fixedly connected, and the rear end of the interior knife pipe is inserted into the head end of the outer tube, and can be relative to the outer tube It rotates and axially reciprocating, the sealing element is arranged between the rear end and the outer tube of the interior knife pipe.

5. the biopsy device of multi-chamber sample holder according to claim 2, which is characterized in that the sample holder Including tubular sample holder ontology, annular is provided on the end face of the first end of the sample holder ontology Sliding slot, the import of multiple sample chambers is located on the bottom surface of the sliding slot, and second connection component includes slide head, One end of the slide head is connect with the tail end of the input pipe, and the other end is positioned in the chute, and can be along the sliding slot Sliding.

6. the biopsy device of multi-chamber sample holder according to claim 5, which is characterized in that the sample holder It further include the cover board for sealing the notch of the sliding slot, the first end of the cover board and the sample holder ontology can turn It connects dynamicly, the through-hole passed through for the input pipe is provided on the cover board.

7. the biopsy device of multi-chamber sample holder according to claim 5, which is characterized in that kept in the sample Multiple outlets are provided on the end face of the second end of device ontology, multiple outlets connect with multiple sample chambers respectively Logical, the sample holder further includes multiple being respectively received in the indoor drawer formula sample slot of multiple sample chambers, the drawer Formula sample slot is put into the sample chamber by the outlet or is taken out out of described sample chamber.

8. the biopsy device of multi-chamber sample holder according to claim 7, which is characterized in that the shell of the handle Position corresponding with the outlet be provided with annular outlet, be provided at the outlet for being opened and closed outlet Annular buckle closure.

9. the biopsy device of multi-chamber sample holder according to claim 5, which is characterized in that the sample holder Further include vaccum suction tube, the vaccum suction tube include supervisor and multiple branch pipes, one end of multiple branch pipes respectively with it is more A sample chamber connection, the other end are connected to the supervisor.

10. the biopsy device of multi-chamber sample holder according to claim 1 or 2, which is characterized in that the input is led Tube drive device includes stepper motor and first gear transmission mechanism, input terminal and the step of the first gear transmission mechanism Output shaft into motor is sequentially connected, and the output end and the input pipe of the first gear transmission mechanism are sequentially connected.