GPM instruments GmbH
Instruments

GPM business line scientific instrumentation

Based on standardization of measurement defined by leading anthropologists

The product portfolio includes a set of 42 high precision anthropometric instruments, which are applied in the field of osteology - the scientific study of bones, and somatology - the study of the human body, as a branch of anthropology.

Manufactured in Switzerland since 1945 to the highest levels of Swiss quality craftsmanship.

Overview

These instruments are exported worldwide and are based on the anthropology developed by Rudolf Martin. Ongoing work on new technology and development ensures an assortment of instruments that are always up-to-date and meet every demand.
Anthropometer & Accessories

Anthropometer & Accessories:

  • Canvas Bag (#101)

  • Base Plate (#1013)

  • Recurved Branches (#102)

  • Auricular Needle (#103)

Anthropometer & Accessories

Calipers:

  • Sliding Calipers (#104/105/114)

  • Spreading Calipers (#106/107/108/109)

  • Coordinate Calipers (#115/116)

Anthropometer & Accessories

Craniometry:

  • Head Spanner TODD (#122)

  • Cubic Craniophor (#201)

  • Skull Clamp (#201A)

  • Skull Bowl (#203)

  • Sight Plane (#204)

  • Tubular Craniophor (#207)

  • Craniophor Mollison (#208)

Anthropological Accessories

Miscellanious:

  • Breast Mold (#118)

  • Skin Thickness (#119)

  • Diagraph (#202)

  • Tracing Needles (#205/206)

  • Dioptrograph (#211/212)

  • Parallelograph (#213)

  • Bone Holder (#214)

  • Palatometer (#215)

  • Orbitometer (#216)

  • Osteometric Table (#217)

  • Hair Color Chart (#301)

  • Orchidometer (#702)

  • Bags (#112/113/412/413)

Anthropometer

The GPM Anthropometer (referred to as the Martin anthropometer, for its inventor Prof. Dr. Rudolf Martin) is world renowned for its precision, durability, and ease of use and is frequently cited in medical journals, textbooks, & studies (referred to as the Martin anthropometer, for its inventor Rudolf Martin). The Anthropometer is an extremely versatile instrument suitable for measuring nearly any linear dimension of the human body.

Measurements are taken via the measuring branch holder, which slides up and down the interconnected tubes. The scale reading window on the branch holder enables the operator to read the numerical value easily and accurately to the nearest millimeter. It's made for measuring linear and transversal dimensions of the human body. It consists of four branches of light metal whose surfaces are specially treated:

  • On one side, branches are graduated up to 2100 mm. The reading of the movable cursor is made for linear measurements. The anthropometer is then held mostly perpendicular.

  • On the other side, branches are graduated up to 950 mm and is used for transversal measurements. The anthropometer is then held horizontally.

GPM offers several accessory add-ons for the Anthropometer, including a canvas carrying bag, recurved metal branches, a baseplate, an auricular height needle or even a Goniometer for measuring angle.

Anthropometer

#100 without Canvas Bag

Specifications

Measuring range [mm]: 0 to 2100mm

Weight: 454g

Anthropometer

#101 with Canvas Bag

Specifications

Measuring range [mm]: 0 to 2100mm

Weight: 752g


Anthropometer accessories

Base Plate


Order No.: #1013

Recurved measuring branches

No.: #102

Auricular height needle

No.: #103

Goniometer


Order No.: #117

#1013 Base Plate

Mostly used for measuring with Anthropometer held in perpendicular position

Then you've to use the side, where the branches are graduated up to 2100 mm.

Weight: 335g

#102 Recurved Measuring Branches

Recurved measuring branches for anthropometer.

They can be provided in addition to the straight measuring branches generally used (e.g. for measuring sagittal breast diameter)

Measuring range [mm]: 150 mm to 270 mm

Weight: 200g


#103 Auricular height needle

The auricular height needle achieves a very high accuracy.

It consists of two steel needles affixed at right angles and consolidated by a small cursor.

When the needle is in the midsagittal plane of the body, the position of the instrument is guaranteed.

Weight:


#117 Goniometer

The goniometer is essential for measuring angles, especially those of the face. It can be attached to the moving branches of the anthropometer or sliding caliper (Martin type), or spreading calipers with rounded or pointed ends with a range from 0 to 300 mm or 600 mm , using two screws setting located in the posterior side. Reading is done using a nickel-plated needle, weighted so that the tip is always in position.

Specifications

Measuring range: 0 to 180° and +/- 90°

Weight: 83g


Calipers

Sliding Caliper

Sliding Calipers

  • Martin Type Order_No.#104

  • Vernier Scale Order_No.#105

  • Poech Type Order_No.# 114

Spreading Caliper

Spreading Calipers

  • small, rounded ends Order_No.#106

  • small, pointed ends Order_No.#107

  • large, rounded ends Order_No.#108

  • large, pointed ends Order_No.#109

Coordinate Caliper

Coordinate Calipers

  • Martin Type Order_No.#115

  • Poech Type Order_No.# 116

Caliper Checking Gauge

Caliper Checking Gauge

Order_No.#219


#104 Sliding Caliper

The Martin type Sliding Caliper consists of a thick, metal vertical bar with a recording strip graduated in millimeters from 0 to 20 cm for length measurements, and from 0 to 5 cm for depth measurements

One of the two horizontal branches is fixed to the vertical bar, and the other slides smoothly up and down the vertical bar to ensure a precise measurement of length and depth.

The Martin type Sliding Caliper can be supplied alone or as part of a package in the Large Instrument Kit or Small Instrument Kit.

Specifications

Measuring range [mm]: 0 in - 07.87 in (back side)

Measuring range [mm]: 0 mm to 200 mm

Weight: 165g


#105 Vernier Caliper

The Sliding Caliper with Vernier Scale is based on the measurement system invented in 1631 by French mathematician Pierre Vernier. The main advantage of the this instrument is the ability to gain precise measurements of both the internal and external diameters of an object. The Vernier scale allows for a reading accuracy of 0.1 mm, by indicating exactly where a measurement lies in between two marks on the main scale.

The caliper is made entirely of metal, and the main scale is engraved in millimeter intervals from 0 to 150 millimeters. The Vernier scale is engraved in 2 mm intervals, from 0 to 20 mm.

On the right hand side of the caliper, the thinner, pointed jaws (with a length of 20 mm) are used for measuring smaller objects and internal diameter. On the left hand side of the caliper, the thicker, incongruent jaws (with a length of 50 mm) are used for normal size objects and external diameter.

A sliding caliper is used to measure the distance between two points on a flat surface. To measure the distance between two points where one or both may be on a rounded surface, please see our range of GPM spreading calipers.

Specifications

Measuring range [mm]: 0 mm to 150 mm

Weight:


#114 Sliding Caliper

The Poech type Sliding Caliper provides accurate measurement of the distance between two points. This caliper is used most frequently for determining the absolute and projected facial measurements.

Specifications

Measuring range [mm] - Vertical: 0 mm to 250 mm

Measuring range [mm] - Horizontal: 0 mm to 140 mm

Weight: 298g


Spreading Calipers

The Spreading Caliper with rounded ends (#106/108) provides accurate measurement of short distances between two points. The ends of the spreading branches are rounded for the patient's comfort, as opposed to the Spreading Caliper with pointed ends (#107/109), where one or both points may not be on a flat surface.  The Caliper is manufactured from chrome plated steel and most commonly used for craniometry and cephalometry. Hinged at the base, the two curved branches with rounded ends are connected by a pivotal ruler (millimeter scale intervals). The branches can be immobilized in any position by a screw located on the slider which guides the ruler. The ruler gives the precise distance between the two points over which the measurement has been taken.

Rounded Ends

Found on GPM instrument #106 and #108.

Pointed Ends

Found on GPM instrument #107 and #109.

#106 Small Spreading Caliper with Rounded Ends

This instrument can be purchased alone or as part of a package in the large Instrument Kit #113/413 or small Instrument Kit #112/412.

Specifications

Measuring range [mm]: 0 mm to 300 mm

Weight: 222g

#108 Large Spreading Caliper with Rounded Ends

GPM's Large Spreading Caliper with rounded ends can be purchased alone or as part of a package in the large Instrument Kit #113/413.

Specifications

Measuring range [mm]: 0 mm to 600 mm

Weight: 498g

#107 Small Spreading Caliper with Pointed Ends

This instrument can be purchased alone or as part of a package in the large Instrument Kit #113/413 or small Instrument Kit #112/412.

Specifications

Measuring range [mm]: 0 mm to 300 mm

Weight: 222g

#109 Large Spreading Caliper with Pointed Ends

GPM's Large Spreading Caliper with pointed ends can be purchased alone or as part of a package in the large Instrument Kit #113/413.

Specifications

Measuring range [mm]: 0 mm to 600 mm

Weight: 498g

Coordinate Calipers

The coordinate caliper consists of two branches of identical shape, one fixed and one mobile, and a ruler graduated in mm, moving cursor, to measure the progress or fallback of median weight.

#115 Martin Type


Specifications

Measuring range [mm]: 20 to 220mm

Weight: 174g


#116 Aichel Type

The vernier can appreciate the 1/10 mm.

Specifications

Measuring range [mm]: 20 to 300 mm

Weight: 475g


#219 Caliper Checking Gauge

The Sliding Caliper with Vernier Scale is based on the measurement system invented in 1631 by French mathematician Pierre Vernier. The main advantage of the this instrument is the ability to gain p

Specifications

Measuring range [mm]: 10/20/30/50/70/100/150/200/250

Tolerance: +/- 0.1mm

Weight: 67g


Craniophors

Craniometry is measurement of the cranium (the main part of the skull), usually the human cranium. It is a subset of cephalometry, measurement of the head.

Cubic Craniophor

Cubic Craniophor

including Skull Holder

 Order_No.#201

  • Skull Bowl Holder Order_No.#203

  • Sight Plane Order_No.#204

  • spare Skull Holder  Order_No.#201A 


Tubular Craniophor

Tubular Craniophor

including Skull Holder

  Order_No.#207

  • Skull Bowl Holder Order_No.#203

  • spare Skull Holder  Order_No.#201A

Mollison Craniophor

Mollison Craniophor

 Order_No.#208


TODD head spanner

TODD head spanner

Order_No.#122


Craniophors Accessories

Skull Holder

Skull Holder

 Order_No.#201A

  • spare part for #201

  • spare part for #207



Skull bowl Holder

Skull Bowl Holder

  Order_No.#203

  • spare part for #201

  • spare part for #207

Sight Plane

Sight Plane

 Order_No.#204

  • additional option for cubic Craniophor instrument #201

Cubic Craniophor

#201 Cubic Craniophor

The cubic craniophor consists of a precisely constructed framework with a lateral length of 28 cm. The cranial chamber, which can be removed and exchanged, can be fixed in the sheath by means of a fixing screw.

Specifications

Measuring range: human skull

Weight: 120g


Sight Plane

#204 Sight Plane

The Sight Plane is an add-on for instrument #201 Cubic Craniophor.

The sight plane will facilitate the fixing of the skull on the skull pincers in the cubus craniophor No. 201 in the Frankfort Plane (see No. 203 - skull bowl for the cubic craniophor). Caution: The exact positioning of the skull in the desired plane requires experience, but ultimately gives good results.

It consists of a precisely constructed framework with a lateral length of 28 cm. The Sight Plane, which can be removed and exchanged, can be fixed in the sheath by means of a fixing clip.

Specifications

Measuring range: human skull

Weight: 112g


Tubular Craniophor

#207 Tubular Craniophor

 A nickel-plated tube is mounted on a tripod that can be extended upwards by 25 cm. The cranial clamp can be fixed to it by means of a locking screw.

Two hinged joints arranged on top of each other allow the cranial clamp to move, making it possible to put the cranium in any position.

Specifications

Measuring range: human skull

Weight: 2175g


Tree-Prong Pliers

#201A Skull Holder

....

Specifications

Measuring range: human skull

Weight: 150g


Skull Bowl

#203 Skull Bowl Holder

With damaged and fragile skulls, which cannot be properly fixed in the Cubic craniophor #201 with the standard skull pincers #201A, the skull bowl is used (such as for calvaria and calotte). The skull is oriented, if at all possible, in the Frankfort Plane and fixed to the bowl with wax, plasticine, or other sticky material. The skull bowl replaces the skull pincers in the Cubic craniophor.

Specifications

Measuring range: human skull

Weight: 218g


Mollison Craniophor

#208 Mollison Craniophor

 The Mollison craniophor is especially suitable for adjusting the cranium in the ear-eye plane (Frankfurt horizontal).

This instrument consists of vertical metal tubes. Each bears, at its upper end, a transverse bar that can be pushed in a horizontal direction and rotated only in the axis of the vertical column. The ends of these bars are three-cornered, and the bars intended for the outer auditory canals have edges pointing upwards, whereas the edge of the third bar, which is intended to fix the lower rim of the orbit, points downwards. The instrument is collapsible as an aid to transportation.

Black’s ear height gauge is fixed on to the craniophor and gives immediate readings on the millimeter scale.

Specifications

Measuring range: human skull

Weight:


TODD Head Spanner

#122 TODD Head Spanner

 The TODD Head Spanner craniophor is especially suitable for adjusting the cranium in the ear-eye plane (Frankfurt horizontal).

Compared to the Mollison Craniophor #208, the TODD Head Spanner has a wider range of uses than the Black version because it is used independently by a craniophor.

The measuring range is from 0 – 200 mm.

The head is oriented in the Frankfurt plane. As a result the auricular level on the vertical bar can be read immediately on the mm similar to Mollison Craniophor #208.

Specifications

Measuring range [mm]: 200 mm

Weight:


Palatometer

#215 Palatometer

The palatometer consists of a flat metal sheath around 7 cm long. A small pin graduated in millimeters from 0-30 mm can move within the sheath. A screw is fixed at both the front and back at one end. These two screws are intended to displace the two short transverse arms laterally.

Specifications

Measuring range [mm]: 0-30mm

Weight: 131g


Mandibulometer

#218 Mandibulometer

Mandibular length, mandibular angle, and maximum ramus height measurements used during forensic evaluation of skeletal remains require use of a mandibulometer.

The instrument is very easy to operate, and its very clearly arranged graduations, and the protractor attached at the side (for the measurement of the mandible angle etc.), make reading the measurements a simple matter.

A whole range of linear and angular measurements of lower jaw or mandibule can be taken with help of this instrument from MD Prof. Black.

Specifications - NEW version 2021

Measuring angle range [°]: 20°-160° and 0°+/- 70° (2nd scale)

Measuring plaid base plate[1mm grid]: 0-200mm (Y axis)

Measuring base plate[1mm grid]: 0 +/- 60mm (X axis)

Measuring pivot plate[1mm grid]: 0-70mm (Y axis)

Measuring pivot plate[1mm grid]: 0 +/- 60mm (X axis)

Weight: 845g


Breast Moulds

#118 Breast Moulds

This instrument for thoracic measurement, developed by Lipiec, is suitable for determining the height and length of the saucer-shaped and hemispherical profiles of the thorax.  


 

Specifications

Measuring range [mm]: Size according to MD Prof. Lipiec

Weight: 625g


Skin Thickness

#119 Skin Thickness

The best way of gauging the thickness of the skin, or the soft tissue of bodies, is by piercing it with this skin thickness gauge (needle).

 

Specifications

Measuring range [mm]: 1 up to 30mm

Weight: 72g


Diagraph

#202 Diagraph

The diagraph is mainly used for producing outlines of the cranium and other skeletal matter in certain planes.

To carry out the drawing, attach a white sheet of adhesive tape to a flat surface. On this leaf one adjusts the adjusted skull and drives its surface at the desired height, the crack plane, with the tip of the sage. On the underlying paper you get the corresponding outline as a pencil outline.

Specifications

Measuring range [mm]: 250 mm

Weight:


Horizontal Tracing Needle

The horizontal needle is the easiest way to adjust the special points on the skull. It consists of a metal ground plate with a fixed vertical bar where the horizontal needle can be moved and fixed by a screw clamping system.

Horizontal Tracing Needle

#205 Horizontal Tracing Needle

Specifications

Measuring range [mm]: 300mm

Weight:

Horizontal Tracing Needle

#206 Horizontal Tracing Needle

Specifications

Measuring range [mm]: 450mm

Weight: 1775g


Cubic Dioptrograph

#211 Cubic Dioptrograph

The only drawings that can be used for measurements are those for which the projection was made on paper by parallel rays. This is why the use of the dioptrograph is recommended.

A diopter with a graticule is placed on the glass plate. The graticule is fixed, such that it can rotate, to a reference point on the pantograph. The opposite reference point carries a pencil that can trace outlines on the paper.

Not only 1:1 scale is supported - you can up and down scale too.


 

Specifications

Measuring range [mm]: 380mm x 380mm

Weight:


Rectangular Dioptrograph

#212 Rectangular Dioptrograph

The only drawings that can be used for measurements are those for which the projection was made on paper by parallel rays. This is why the use of the dioptrograph is recommended.

A diopter with a graticule is placed on the glass plate. The graticule is fixed, such that it can rotate, to a reference point on the pantograph. The opposite reference point carries a pencil that can trace outlines on the paper.

Not only 1:1 scale is supported - you can up and down scale too.


 

Specifications

Measuring range [mm]: 780mm x 380mm

Weight:


These instruments are intended for the measurement of the angles of the joint axes (e.g., determining the torsion angle of the humerus) and for fixing postcranial bones - especially long bones.
Parallelograph

#213 Parallelograph

For centering purposes, the lower transverse bar is pulled out by about 10 cm while the upper bar is extended and brought so close to the lower bar that the tip corresponds with the upper tip of the vertical pin. It is essential that both transverse bars lie along the guide bar.

Specifications

Measuring range [mm]:

Weight: 1970g


Bone Support

#214 Bone Support

The instrument is intended for fixing postcranial bones - especially long bones.

Specifications

Measuring range [mm]: -

Weight:


Palatometer

#215 Palatometer

The palatometer consists of a flat metal sheath around 7 cm long. A small pin graduated in millimeters from 0-30 mm can move within the sheath. A screw is fixed at both the front and back at one end. These two screws are intended to displace the two short transverse arms laterally.

Specifications

Measuring range [mm]: 1 up to 30mm

Weight: 131g


Orbitometer

#216 Orbitometer

This instrument is intended for measuring the depth of the orbital cavern or the lengths of the orbital walls and similar dimensions.

Specifications

Measuring range [mm]: 1 up to 50mm

Weight: 16g


Osteometric Table

#217 Osteometric Table

This improved measurement board can be used to determine angles and curvatures in addition to lengths, heights and widths. The measurement board is 60 cm long and 25 cm wide. The base plate as well as the side walls are made from PVC. The graph paper is mounted directly on the base plate.

A steel bar is fixed to the upper outer edge of the short side wall. This bar is bent round and fixed. There are three plug-in sheaths on the longer side.

Specifications

Measuring range [mm]: 350mm x 600mm

Weight: 2963g


Hair Color Chart

#301 Hair Color Chart

The hair colour chart consists of thirty natural hair patterns. Of these, twenty-four samples are labeled with the letters of the alphabet; J and Z are not used. These samples are summarized under the designations white-blonde or ash-blonde (A), fair-blonde (B-E), blonde (F-L), dark blonde (M-O), brown (P-T), brown-black (U-Y). An additional scale consists of six gradations of red (I-IV) and red-blonde (V-VI). The scale is easy to handle, but the determination should preferably be done in daylight.

 

Specifications

Measuring range [mm]: Fischer-Saller scale

Weight: 286g


Orchidometer

#702 Orchidometer

The orchidometer was introduced in 1966 by Swiss pediatric endocrinologist A. Pradr. It consists of a string of twelve numbered wooden or plastic beads of increasing size from about 1 to 25 milliliter. Doctors sometimes informally refer to them as "Prader's balls", "the medical worry beads", or the "endocrine rosary".

The beads are compared with the testicles of the patient, and the volume is read off the bead which matches most closely in size. Prepubertal sizes are 1–3 ml, pubertal sizes are considered 4 ml and up and adult sizes are 12–25 ml. 

Specifications

Measuring range [mm]: Orchido size 1ml up to 25ml

Weight: 164g


Instruments Accessories

Skull Holder

Canvas Bag

 Order_No.#1012

  • built in canvas - strong & durable

  • for Anthropometer #101

  • including regular pencil

  • including special red pencil for Anthropology

  • can be ordered with Anthropometer (order_No.#101)

small anthropological instrument bag

Small Instrument Bag

  Order_No.#112

  • built in Cordura (Denim) - soft, hard-wearing & long lasting

  • for Instruments #104, 106 or 107, 111D - depending on your order (order_No.#412)

  • including special red pencil for Anthropology & regular pencil plus measuring tape #111

large anthropological instrument bag

Large Instrument Bag

 Order_No.#113

  • built in Cordura (Denim) - soft, hard-wearing & long lasting

  • for Instruments #100, 102, 104, 106 or 107, 108 or 109, 111D, 114 or 115, 117 - depending on your order (order_No.#413)

  • including special red pencil for Anthropology & regular pencil plus measuring tape #111

  • embroidered instrument names for right placement

Measuring Tapes

Measuring tapes are ideal to perform uneven surface measurments such as cross-section of bones and so forth.

GPM electronic ruler

#111D Digital Ruler


Specifications

  • Measuring range [mm]: 0 to 99.9m +/-1mm

  • Weight: 43g

  • Battery: 200mAh LiPo - 180 days stand by

  • Operating range: -10°C - 50°C

  • Unit: metric and imperial

  • Chargeing: standart USB 5V

  • Automatic shut down, automatic starage, history ...


#111 Analog Ruler


Specifications

  • Measuring range [mm]: up to 1500 mm

  • Weight: 25g


Contact Form


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Contact


Feithierenstrasse 163, 3952 Susten

+41 27 304 6260

gpm@anthropology.ch

Sun: Closed, Mon-Fri: 8 am-6 pm, Sat: 10 am-4 pm